CN212857393U - One-step forming blanking die for stretching and cutting - Google Patents

Abstract

The utility model provides a one-step forming blanking die for stretching and cutting, which is provided with an upper fixed plate, an upper backing plate, an upper positioning plate, an upper convex wrapping plate, an upper stop baffle, an upper stripper plate, a lower convex wrapping plate, a lower positioning plate and a lower backing plate from top to bottom in sequence; it decides cutting panel when the die is used for the compound die to be provided with in the flitch to take off down, go up to take off the fender and be provided with in the tensile and take off down be provided with in the flitch can decide the tensile die of realizing vertical reciprocating motion in the die, lower protruding package board is provided with and extends to take off ejecting die in the flitch down, it can to go up the fender be provided with in the tensile takes off in the ejecting interior taking off that realizes vertical reciprocating motion in the tensile, take off in the tensile with tensile die cooperation is used for fixed panel when the compound die, take off in the ejecting and ejecting die cooperation is used for tensile panel when the compound die. The utility model relates to a tensile one shot forming blanking mould of deciding can effectively realize the low beneficial effect that just machining efficiency is high of processing cost.

Description

One-step forming blanking die for stretching and cutting

Technical Field

The utility model relates to a stamping processing equipment field particularly, relates to a tensile one shot forming blanking mould of deciding.

Background

Many scenes in life all need to use some metal cover form accessories, and the metal cover is all tailor and stretch forming through the stamping die and forms, and traditional stamping die often needs solitary cutting die to realize tailorring, thereby it forms a lid form thing to stretch the panel after cutting out through solitary stretching die again, often needs two sets of moulds at least like this to form the lid form thing and leads to the processing cost higher, and machining efficiency is also very low simultaneously.

In view of this, this application utility model people utility model discloses a one shot forming blanking die is decided in low and the high tensile of machining efficiency of processing cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an one shot forming blanking mould is decided in tensile that the processing cost is low and machining efficiency is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stretch cutting one-step forming blanking die is sequentially provided with an upper fixing plate, an upper backing plate, an upper positioning plate, an upper convex wrapping plate, an upper stop baffle, an upper stripper plate, a lower convex wrapping plate, a lower positioning plate and a lower backing plate from top to bottom; it decides cutting panel when the die is used for the compound die to be provided with in the flitch down, it is provided with to extend to go up the fender and take off in the drawing of flitch below on, it can to be provided with in the flitch down to take off in the flitch decide the tensile die of realizing vertical reciprocating motion in the die, lower protruding wrapper sheet is provided with and extends to take off ejecting die in the flitch down, it can to go up the fender be provided with in the drawing take off in the ejecting interior of realizing vertical reciprocating motion take off, take off in the drawing with tensile die cooperation is used for fixed panel when the compound die, take off in the ejecting and ejecting die cooperation is used for tensile panel when the compound die, just it is ejecting with the shaping product when being used for the die sinking to take off in.

As a further improvement, decide the die and be fixed in detachablely in the flitch takes off down, the top of deciding the die is higher than take off the flitch top down, go up take off the flitch lower surface seted up with decide the recess of deciding of die looks adaptation.

As a further improvement, an ejection spring extending between the two upper backing plates is fixed on the upper fixing plate, the lower end of the ejection spring abuts against the upper end of an ejection pin, and the upper end of the ejection pin extrudes the ejection spring during die assembly and abuts against the upper surface of the ejection inner stripper after penetrating through the upper positioning plate and the upper convex wrapping plate.

As a further improvement, a first yielding hole for realizing vertical reciprocating motion of the ejection inner stripping is formed in the stretching inner stripping, the first yielding hole comprises a first limiting part and a first ejection part, an opening of the first limiting part is larger than an opening of the first ejection part, the cross section of the ejection inner stripping is T-shaped, the upper part of the ejection inner stripping can move up and down in the first limiting part but cannot penetrate through the first ejection part, and when the mold is opened, the ejection inner stripping is performed under the condition that the lower part of the ejection spring is extruded and penetrates through the first ejection part to eject out a molded product.

As a further improvement, a spring fixing block is further arranged below the lower base plate, a fixing groove part for fixing the supporting spring is formed in the spring fixing block, the upper end of the supporting spring is abutted against the lower end of at least one supporting needle, and the lower end of the supporting needle extrudes the ejection spring during die assembly and is abutted against the lower surface of the stretching female die after penetrating through the lower base plate, the lower positioning plate and the lower convex wrapping plate.

As further improvement, decide and to have seted up a confession in the die the vertical reciprocating motion's of tensile die second hole of stepping down is realized, the second hole of stepping down includes spacing portion of second and second ejecting portion, spacing portion of second opening is greater than the second ejecting portion opening, the transversal font of falling the T of personally submitting of tensile die, the lower part of tensile die can be in the spacing portion up-and-down motion of second but can' T pass second ejecting portion, during the compound die, tensile die is in the elasticity of reaction supports down to during the supporting spring compression tensile interior take off provides ascending holding power.

As a further improvement, the number of the supporting pins is two, a supporting plate is fixed below the two supporting pins, and the supporting spring is abutted against the supporting plate.

As a further improvement, the upper convex hull plate is provided with and extends to convex hull formed part in the tensile interior take-off, the lower convex hull plate is provided with and extends to decide convex hull support piece in the die, during the compound die, convex hull formed part with convex hull support piece pastes tightly completely and is used for at shaping product upper surface shaping convex hull portion.

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

1. the utility model relates to a die is decided to whole adoption in tensile one shot forming blanking mould, take off in the tensile, tensile die, take off in ejecting, ejecting die combines holistic mould structure can effectively realize deciding and tensile once only accomplishing in a pair mould of panel, mould overall structure design benefit has overcome need will decide and tensile separately twice process in traditional technology, need the problem that two moulds were accomplished, not only practice thrift the bulk cost effectively, the machining efficiency has still been improved to the while showing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a stretch cutting one-step forming blanking die of the present invention when the die is closed;

FIG. 2 is a schematic structural view of the stretch cutting one-step forming blanking die of the present invention;

fig. 3 is a top view of the one-step forming blanking die for stretch cutting of the utility model.

Description of the main elements

11. An upper fixing plate; 12. an upper base plate; 13. an upper positioning plate; 14. an upper convex plate; 15. an upper stop baffle; 16. an upper stripper plate;

21. a lower stripper plate; 22. a lower convex wrapping plate; 23. a lower positioning plate; 24. a lower base plate; 25. a block for raising; 26. a sheet guide;

30. cutting off the female die;

40. stretching and internal stripping;

50. stretching the female die;

60. ejecting out the female die;

70. ejecting and internally stripping;

81. ejecting a spring;

82. ejecting the needle;

91. a spring fixing block;

92. a support spring;

93. a supporting needle;

x, plates;

and Y, a product station.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1 to 2, in the embodiment, an upper fixing plate 11, an upper cushion plate 12, an upper positioning plate 13, an upper convex wrapping plate 14, an upper stop baffle 15, an upper stripper plate 16, a lower stripper plate 21, a lower convex wrapping plate 22, a lower positioning plate 23 and a lower cushion plate 24 are sequentially arranged from top to bottom; it cuts panel X to be provided with in the flitch 21 down when deciding die 30 and being used for the compound die, it is provided with the extension to go up the flitch 16 below of taking off in the drawing take off 40 to go up to go off in the flitch 21 down be provided with can in decide the die 30 in realize vertical reciprocating motion's tensile die 50, lower punch plate 22 is provided with and extends to take off ejecting die 60 in the flitch 21 down, it is provided with to go up the flitch can in the drawing take off in 40 in realize vertical reciprocating motion in the ejecting in take off 70, in the drawing take off 40 with tensile die 50 cooperation is used for fixed panel X when the compound die, in ejecting 70 and ejecting die 60 cooperation are used for tensile panel X when the compound die, just in ejecting 70 is used for ejecting the moulded product when the die sinking.

Specifically, the size of the ejection female die 60 is smaller than that of the stretching female die 50 and is coaxial with the stretching female die 50, and the ejection female die 60 penetrates through the stretching female die 50 and extends to the upper surface of the lower stripper plate 21. Still be provided with panel guide 26 on taking off flitch 21 down, panel guide 26 week side is provided with the spacing groove and is used for playing guide and limiting displacement to the transmission of panel X.

The die 30 is decided in the whole adoption, take off 40 in the drawing, tensile die 50, take off 70 in ejecting, ejecting die 60 combines holistic mould structure can effectively realize deciding and drawing of panel once only accomplish in a pair of mould, and mould overall structure design benefit has overcome need will decide and stretch separately twice process in traditional technology, needs two moulds to accomplish the problem, not only practices thrift the overall cost effectively, has still shown simultaneously and has improved machining efficiency.

Referring to fig. 2, in the embodiment, the cutting die 30 is detachably fixed in the lower stripper plate 21, the top of the cutting die 30 is higher than the top of the lower stripper plate 21, and the lower surface of the upper stripper plate 16 is provided with a cutting groove adapted to the cutting die 30.

The cutting female die 30 has different blade shapes according to different shapes of the outer edge of the molded product, and if the outer edge of the molded product is circular, the blade is annular; when the product to be stretched is cylindrical in shape, the stretching inner stripper 40 and the stretching female die 50 are cylindrical, and when the inner surface of the stretching part of the product to be stretched is cylindrical, the ejection inner stripper 70 and the ejection female die 60 are cylindrical; similarly, if the parts to be stretched have other shapes, the shapes of the inner and outer dies may be changed accordingly.

Referring to fig. 1 to 2, in the embodiment, an ejection spring 81 extending between the two upper backing plates 12 is fixed to the upper fixing plate 11, a lower end of the ejection spring 81 abuts against an upper end of an ejection pin 82, and an upper end of the ejection pin 82 presses the ejection spring 81 during mold closing, and penetrates through the upper positioning plate 13 and the upper convex plate 14 to abut against an upper surface of the ejection inner stripper 70. Further, an ejector plate may be further fixed below the ejector spring 81 and between the two upper backing plates 12, and the ejector pin 82 pushes the ejector plate to extrude the ejector spring 81.

Furthermore, a first yielding hole for enabling the ejection inner stripper 70 to realize vertical reciprocating motion is formed in the stretching inner stripper 40, the first yielding hole comprises a first limiting part and a first ejection part, an opening of the first limiting part is larger than an opening of the first ejection part, the cross section of the ejection inner stripper 70 is T-shaped, the upper part of the ejection inner stripper 70 can move up and down in the first limiting part but cannot penetrate through the first ejection part, and when the mold is opened, the ejection inner stripper 70 is used for ejecting a molded product under the action of the elastic extrusion of the ejection spring 81 after loosening.

Because the upper surface and the lower surface of the cover body are easy to be adhered on the stretching inner stripper 40 and are not easy to be separated during stamping, the formed product can be effectively ejected out in steps during die stripping through the matching of the ejection inner stripper 70, the first abdicating hole and the ejection spring 81, the structure is ingenious, and the function is easy to implement.

Referring to fig. 1 to 2, in an embodiment, a spring fixing block 91 is further disposed below the lower cushion plate 24, the spring fixing block 91 is provided with a fixing groove for fixing a supporting spring 92, an upper end of the supporting spring 92 abuts against a lower end of at least one supporting pin 93, and a lower end of the supporting pin 93 presses the ejection spring 81 during mold closing, penetrates through the lower cushion plate 24, the lower positioning plate 23 and the lower convex plate 22, and abuts against a lower surface of the stretching female die 50. At least two block 25 of stepping up are further provided with below the lower bolster 24, and is preferred, the quantity of block 25 of stepping up is 4, sets up between per two block 25 of stepping up spring fixed block 91, block 25 of stepping up is used for stepping up the mould wholly for there is enough space to set up spring fixed block 91 and ejecting spring 81.

Further, decide and to have seted up a confession in the die 30 the second hole of stepping down that vertical reciprocating motion was realized to tensile die 50, the second hole of stepping down includes spacing portion of second and second ejecting portion, spacing portion of second opening is greater than the second ejecting portion opening, the transversal shape of falling T of personally submitting of tensile die 50, the lower part of tensile die 50 can be in the spacing portion of second up-and-down motion but can' T pass second ejecting portion, during the compound die, tensile die 50 is in the elasticity of reaction supports down to when supporting spring 92 compresses the tensile interior 40 that takes off provides ascending holding power.

Because the sheet material needs to be supported by a supporting force to ensure the smooth proceeding of the stretching process in the process of stretching the sheet material during die assembly, the supporting effect on the sheet material can be effectively realized by the structure of the stretching female die 50 and the second abdicating hole combined with the supporting spring 92, and the stretching process of a formed product is ensured.

Referring to fig. 1, the number of the support pins 93 is two, a support plate is fixed below the two support pins 93, and the support spring 92 abuts against the support plate. The support spring 92 supports the stable descending of the drawing die 50 by uniformly applying force to the support plate to perform the upward lifting of the two support pins 93.

In addition, the metal cover often needs to be formed with a convex hull portion or a concave hull portion on the surface during forming to make the whole structure more stable or to achieve connection and matching with other objects. For its convex closure portion of one shot forming, upper convex closure plate 14 is provided with and extends to take off convex closure formed part 101 in 40 in the tensile, lower convex closure plate 22 is provided with and extends to decide convex closure support piece 102 in die 30, during the compound die, convex closure formed part 101 with convex closure support piece 102 pastes tightly completely and is used for at shaping product upper surface shaping convex closure portion.

Adopt such structure can effectively realize tailorring, tensile, the one-time shaping of three process of protruding package, its machining efficiency compares traditional press die and improves greatly, and its processing cost also effectively reduces simultaneously.

Referring to fig. 1 to 3, the number of the upper fixing plate 11 and the lower cushion plate 24 is one, the number of the upper cushion plates 12 is two, that is, four, the space between every two upper cushion plates 12 is used for arranging the ejection spring 81, and the number of the upper positioning plate 13, the upper convex plate 14, the upper stop baffle 15, the upper stripper plate 16, the lower stripper plate 21, the lower convex plate 22, and the lower positioning plate 23 is two, that is, two.

Specifically, referring to fig. 3, in a top view, a position Y in the drawing indicates a product station where a product is to be formed on a plate, a left group of dies is first used for forming the product at the product stations Y on both sides in the longitudinal direction of the plate, the number of parts of the group, such as the cutting die 30, the drawing inner stripper 40, the drawing die 50, etc., is also two, and the other right group of dies is then used for forming the product at the product station Y in the middle of the plate X in the longitudinal direction, so as to form a cap-shaped product on the plate X as much as possible.

And (3) a die forming process: in an initial state, the mold is in a mold opening state, when the mold is closed, because the lowest surface of the stretching inner stripper 40 is lower than the lower surface of the upper stripper plate 16, the stretching inner stripper 40 firstly contacts with the stretching female mold 50, the stretching inner stripper 40 presses and fixes the sheet under the support of the stretching female mold 50 after the contact, meanwhile, the supporting spring 92 is compressed, the stretching inner stripper 40 and the stretching female mold 50 move downwards, at the moment, the ejection female mold 60 contacts with the ejection inner stripper 70, because the height of the ejection female mold 60 is constant, the ejection female mold 60 extrudes the ejection inner stripper 70 upwards, at the moment, the ejection inner stripper 70 drives the ejection needle 82 to move upwards so as to compress the ejection spring 81, and the ejection inner stripper 70 and the ejection female mold 60 complete the stretching of the sheet X under the limit of the stretching inner stripper 40 and the stretching female mold 50; when the stretching inner stripper 40 completely enters the lower stripper plate 21 and the stretching female die 50 compresses the supporting spring 92 to the lowest part, the ejecting inner stripper 70 also moves upwards to the highest position at the moment, the upper stripper plate 16 is completely attached to the lower stripper plate 21, the cutting female die 30 finishes the cutting process, and meanwhile, the convex hull forming part 101 and the convex hull supporting part 102 are just completely extruded and attached to each other, and a convex hull part is formed on the surface of the stretched product; after cutting and stretching are finished, the die begins to be separated, the stretching female die 50 loses the extrusion force of the stretching inner stripper 40 to the stretching female die at the moment, the stretching female die recovers to the initial position under the resilience action of the supporting spring 92, meanwhile, the ejecting inner stripper 70 loses the extrusion force of the ejecting female die 60 to the stretching female die, the ejection is carried out under the resilience action of the ejecting spring 81, the formed product is ejected, the formed product is blown out through a blowing device on a machine tool after the ejection, the sheet moves forwards under the driving action of the machine tool, and the die repeats the processes to finish the forming process of other parts of the sheet.

The whole die has an ingenious structure, the stretching of the plate is effectively realized by utilizing the relative position relation between the inner stripping and the female die, meanwhile, 40 parts of the inner stripping are stretched, 70 parts of the inner stripping are ejected, the convex hull forming part is sequentially embedded, the female die 30 is cut, 50 parts of the female die are stretched, 60 parts of the female die and the convex hull supporting part are sequentially embedded to form an integral matching structure, three processes of cutting, stretching and forming the convex hull can be simultaneously realized in one die, meanwhile, the size of the integral die is very compact, the material consumption of the die raw materials is greatly reduced on the premise of ensuring the structure to be stable, and the integral processing cost is effectively reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a tensile one shot forming blanking die of deciding which characterized in that: an upper fixing plate (11), an upper backing plate (12), an upper positioning plate (13), an upper convex packet plate (14), an upper stop baffle (15), an upper stripper plate (16), a lower stripper plate (21), a lower convex packet plate (22), a lower positioning plate (23) and a lower backing plate (24) are sequentially arranged from top to bottom; a cutting concave die (30) is arranged in the lower stripper plate (21) and used for cutting the plate during die assembly, the upper stop baffle is provided with a stretching inner stripper (40) extending out of the lower part of the upper stripper plate (16), a stretching female die (50) capable of realizing vertical reciprocating motion in the cutting female die (30) is arranged in the lower stripper plate (21), the lower convex ladle plate (22) is provided with an ejection concave die (60) extending into the lower stripper plate (21), the upper stop baffle is provided with an ejection inner release (70) which can realize vertical reciprocating motion in the stretching inner release (40), the stretching inner stripper (40) and the stretching female die (50) are matched for fixing the plate during die assembly, the ejection inner stripper (70) and the ejection female die (60) are matched for stretching the plate during die assembly, and the ejection inner stripper (70) is used for ejecting a formed product during die opening.

2. The stretch cutting one-shot forming blanking die of claim 1, characterized in that: decide die (30) and be fixed in with detachable in down take off flitch (21), decide the top of die (30) and be higher than take off flitch (21) top down, go up take off flitch (16) lower surface seted up with decide the recess of deciding of die (30) looks adaptation.

3. The stretch cutting one-shot forming blanking die of claim 1, characterized in that: an ejection spring (81) extending between the two upper backing plates (12) is fixed on the upper fixing plate (11), the lower end of the ejection spring (81) is abutted against the upper end of an ejection pin (82), and the upper end of the ejection pin (82) extrudes the ejection spring (81) during die assembly and is abutted against the upper surface of the ejection inner release plate (70) after penetrating through the upper positioning plate (13) and the upper convex plate (14).

4. The stretch cutting one-shot forming blanking die of claim 3, characterized in that: the stretching inner stripper (40) is internally provided with a first abdicating hole for ejecting the inner stripper (70) to realize vertical reciprocating motion, the first abdicating hole comprises a first limiting part and a first ejection part, the opening of the first limiting part is larger than the opening of the first ejection part, the cross section of the inner stripper (70) is T-shaped, the upper part of the inner stripper (70) can move up and down in the first limiting part but cannot pass through the first ejection part, and when the die is opened, the inner stripper (70) is pushed out and the lower part of the spring after the ejection spring (81) is loosened is extruded and passes through the first ejection part to eject the formed product.

5. The stretch cutting one-shot forming blanking die of claim 4, characterized in that: the lower bolster (24) below is further provided with a spring fixed block (91), a fixed slot part that supplies supporting spring (92) to fix is seted up to spring fixed block (91), supporting spring (92) upper end and at least one support needle (93) lower extreme looks butt, support needle (93) lower extreme extrudees when the compound die ejecting spring (81), and runs through behind lower bolster (24), lower locating plate (23) and the lower convex plate (22) with tensile die (50) lower surface looks butt.

6. The stretch cutting one-shot forming blanking die of claim 5, characterized in that: decide die (30) and seted up a confession tensile die (50) realize vertical reciprocating motion's second hole of stepping down, the second hole of stepping down includes spacing portion of second and second ejecting portion, spacing portion opening of second is greater than the second ejecting portion opening, tensile die (50) are transversal to personally submit the font of falling T, the lower part of tensile die (50) can be in the spacing portion up-and-down motion of second but can' T pass second ejecting portion, during the compound die, tensile die (50) are in the elasticity of reaction supports down during supporting spring (92) compression to tensile interior take off (40) provide an ascending holding power.

7. The stretch cutting one-shot forming blanking die of claim 6, characterized in that: the number of the support pins (93) is two, a support plate is fixed below the two support pins (93), and the support spring (92) is abutted against the support plate.

8. The stretch cutting one-shot forming blanking die of claim 1, characterized in that: go up convex closure board (14) are provided with and extend to take off the convex closure formed part in (40) in the drawing, lower convex closure board (22) are provided with and extend to decide the convex closure support piece in die (30), during the compound die, convex closure formed part with convex closure support piece pastes tightly completely and is used for at shaping product upper surface shaping convex closure portion.

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