CN222607702U - High-efficiency punching drawing die - Google Patents

Abstract

The utility model discloses a high-efficiency punching drawing die, wherein a lower die punch is arranged on a lower die forming plate, an inner stripper plate is arranged on an upper die plate in a sliding manner, and an upper die insert is arranged on the inner stripper plate. The utility model can carry out inverse drawing on the plate material to form the convex hull by arranging the lower die punch on the lower die and arranging the upper die insert on the inner stripper plate of the upper die, has relatively large distribution area of punching force, relatively small drawing forming acting force of each structure, is not easy to break the plate material, improves the drawing yield, can synchronously punch the contour and the flash of a product in the two relative moving processes of the upper die plate and the inner stripper plate in the primary die closing and die opening processes, has high forming efficiency, can simplify the die structure, and can reduce the drawing speed in die closing and accelerate the punching flash speed in die opening by arranging the driving connection of the punch rod and the inner stripper plate, thereby improving the forming yield.

Description

High-efficiency punching drawing die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a high-efficiency punching drawing die.

Background

In the stamping die, the defects such as sheet material breaking, breakage and the like easily occur in the drawing process, so that structural members such as a pressing plate, a punch and the like on the die need to be accurately designed and installed, proper punching pressure and punching speed are selected, and the processing efficiency is relatively low. In production, a plurality of processes such as drawing, blanking and the like are needed to be processed on some slightly complicated products, the stamping of each procedure is sequentially finished one by one, the die manufacturing cost is high, the assembly is time-consuming and labor-consuming, and the production efficiency is low, if continuous die production is adopted, although the production efficiency can be improved, the drawing defect is easily caused by consistent stamping parameters on the die, and the product yield is reduced.

Disclosure of utility model

Aiming at the problems in the prior art, the utility model provides the efficient punching drawing die which is used for carrying out reverse drawing on the plate material, so that the plate material is not easy to break, and the working procedures of drawing, cutting forming and deburring can be finished by one-time die assembly operation, so that the forming efficiency is high and the yield is improved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The high-efficiency punching drawing die comprises an upper die, a lower die and a guiding structural member matched and arranged between the upper die and the lower die, wherein the upper die is provided with an upper die seat and an upper die plate, and the lower die is provided with a lower die seat, and the high-efficiency punching drawing die comprises:

The lower die holder is provided with a lower base plate, the lower base plate is provided with a forming plate, and the forming plate is provided with more than one lower die punch which is matched with a product and extends along the die assembly direction;

The lower end part of the upper template is slidably embedded with an inner stripper plate, the inner stripper plate is arranged right above the forming plate, the outer contour of the inner stripper plate is matched with the outer contour of a product, the inner stripper plate can slide on the upper template along the die assembly direction under the action of external force, the lower end part of the inner stripper plate is provided with more than one upper die insert matched with the product, and each upper die insert is matched and arranged right above one lower die insert.

As a further explanation of the above technical solution:

In the above technical scheme, still be equipped with on the upper mould and erect the upper cover plate of upper die base top, a plurality of elastomeric element on the upper cover plate, every elastomeric element all is connected with more than one roof transmission, every all establish more than one and follow the pole of beating that the die sinking direction extends on the roof, every the pole of beating all passes in proper order upper die base and cope match-plate pattern and support and lean on the interior take off the board.

In the above technical solution, each elastic component is a spring or a nitrogen spring.

In the technical scheme, the lower end part of the upper template is provided with a clamping groove matched with the outer contour of the product, and the side wall of the clamping groove is provided with a plurality of guide grooves extending along the die assembly direction.

In the above technical scheme, a first guide member is arranged on the lower die beside the forming plate, and a second guide member matched with the first guide member is arranged on the upper die.

In the above technical scheme, a limiting piece is arranged on the lower die at the side of the forming plate.

Compared with the prior art, the die has the advantages that the lower die punch is arranged on the lower die, the upper die insert is arranged on the inner stripper plate which moves on the upper die, the plate can be reversely drawn to form the convex hull, the distribution area of punching force is relatively large, the drawing forming acting force of each structure is relatively small, the plate is not easy to break, the drawing yield is improved, the contour and the flash of a product can be synchronously punched in the two relative moving processes of the upper die plate and the inner stripper plate in the one-time die assembly and die opening processes, the forming efficiency is high, the die structure can be simplified, and the driving connection of the punching rod and the inner stripper plate is arranged, so that the drawing speed can be slowed down in die assembly and the punching flash speed can be accelerated in die opening, and the forming yield is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the product of this embodiment;

fig. 2 is a schematic view of the structure of the present embodiment (to show the guide structure and the second guide) when the mold is opened.

100 Parts of an upper die, 200 parts of a lower die, 300 parts of a product, 10 parts of an upper die holder, 20 parts of an upper die plate, 21 parts of a clamping groove, 22 parts of a guide groove, 30 parts of a lower die holder, 40 parts of a lower base plate, 50 parts of a forming plate, 51 parts of a lower die punch, 60 parts of an inner stripper plate, 61 parts of an upper die insert, 70 parts of an upper cover plate, 80 parts of an elastic part, 90 parts of a top plate, 1 parts of a punch rod, 2 parts of a guide piece, 3 parts of a limiting piece.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the application and are not to be construed as limiting the application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a number", "a plurality" or "a plurality" is two or more, unless specifically defined otherwise. In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances. In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In order to facilitate understanding, fig. 1 shows a schematic diagram of a part of the structure of a product 300 in this embodiment, it can be seen that a plurality of convex hulls, hole slots and other structures with different sizes and higher precision requirements are formed on the uneven surface of the product, and in the production, procedures such as drawing the convex hulls, punching the hole slots, cutting burrs and the like are required, the procedures are more, the precision requirements are higher, good products are not high by using a continuous die, but the cost of a production mode of punching and forming each structure by using an independent die is too high. Therefore, the present utility model makes the following improvements to the mold structure.

As shown in fig. 2, the high-efficiency punching drawing die comprises an upper die 100, a lower die 200 and a guiding structural member arranged therebetween, wherein the upper die 100 is provided with an upper die holder 10 and an upper die plate 20, and the lower die 200 is provided with a lower die holder 30, and the following components are arranged:

The lower die holder 30 is provided with a lower base plate 40, the lower base plate 40 is provided with a forming plate 50, and the forming plate 50 is provided with more than one lower die punch 51 which is matched with a product and extends along the die assembly direction;

The lower end of the upper die plate 20 is slidably embedded with an inner stripper plate 60, the inner stripper plate 60 is arranged right above the forming plate 50, the outer contour of the inner stripper plate is matched with the outer contour of a product, the inner stripper plate 60 can slide on the upper die plate 20 along the die assembly direction under the action of external force, the lower end of the inner stripper plate 60 is provided with more than one upper die insert 61 matched with the product, and each upper die insert 61 is matched with and arranged right above a lower die punch 51.

The working process of the utility model is that firstly, a plate material/semi-finished product is fixed on a forming plate 50, a punch is started, an upper die 100 is driven to move downwards, an upper cover plate 70, an upper die base 10, an upper die plate 20 and an inner stripper plate 60 move downwards synchronously, the upper die plate 20 firstly contacts the plate material/semi-finished product, the forming plate 50 and a lower die punch 51 abut against the plate material/semi-finished product, the upper die 100 continuously drives the upper die plate 20 to move downwards to punch the plate material/semi-finished product to form the outer contour of a product 300, the forming plate 50 pushes the inner stripper plate 60 to slide upwards in the upper die plate 50 to reduce buffer cutting force, the lower die punch 51 and the upper die insert 61 are matched with the plate material/semi-finished product to draw a convex hull and cut a hole groove, after the upper die 100 is separated from the lower die 200, the inner stripper plate 60 is separated from the pushing of the forming plate 50 and slides downwards in the upper die plate 20 under the action of self gravity, and burrs on the outer contour of the product 300 are cut by matching with the upper die plate 20.

Further, the upper die 100 is further provided with an upper cover plate 70 erected above the upper die holder 10, a plurality of elastic components 80 are arranged on the upper cover plate 70, each elastic component 80 is in transmission connection with more than one top plate 90, more than one rod 1 extending along the die opening direction is arranged on each top plate 90, each rod 1 sequentially passes through the upper die holder 10 and the upper die plate 20 and abuts against the inner stripping plate 60, and each elastic component 80 is a spring or a nitrogen spring.

In order to further slow down the upward moving speed of the inner stripper plate 60 during mold closing to slow down the drawing speed of the convex hull and to speed up the downward moving speed of the inner stripper plate 60 during mold opening to improve the trimming effect, the upper mold 100 is provided with a driving rod 1 in driving connection with the inner stripper plate 60. When the die is opened, after the forming plate 50 leaves the inner stripper plate 60, the elastic component 80 pushes the inner stripper plate 60 to accelerate downward movement of the plate edge of the inner stripper plate 60 and the plate edge of the upper die plate 20 to match and cut plate edge scraps or burrs.

Further, a first guide 2 is provided on the lower die 200 at the side of the molding plate 50, a second guide matching the first guide 2 is provided on the upper die 100, and a stopper 3 is provided on the lower die 200 at the side of the molding plate 50.

It can be understood that the clamping groove 21 can limit the initial position of the inner stripper plate 60, the guide groove 22 can guide the sliding direction of the inner stripper plate 60 and limit the maximum upward movement travel, the first guide member 2 and the second guide member can further guide the upper die plate 20/the inner stripper plate 60 and the forming plate 50, and the limiting member 3 can sense the distance between the upper die plate 20 and the lower die 200 to avoid bad phenomena such as pulling out of the convex hull caused by too small die closing distance. In the present embodiment, the first guide 2 and the stopper 3 are provided on the lower mat 40, and the second guide is provided on the upper die plate 20.

According to the utility model, the lower die punch 51 is arranged on the lower die 200, the upper die insert 61 is arranged on the movable inner stripper plate 60 of the upper die 100, the plate material can be reversely drawn to form the convex hull, the distribution area of the punching force is relatively large, the drawing forming acting force of each structure is relatively small, the plate material is not easy to break, the drawing yield is improved, the product contour and the flash can be synchronously punched in the two relative moving processes of the upper die plate 20 and the inner stripper plate 60 in the primary die closing and opening processes, the forming efficiency is high, the die structure can be simplified, and the driving connection of the punching rod 1 and the inner stripper plate 60 is arranged, so that the drawing speed can be slowed down in die closing and the flash punching speed can be accelerated in die opening, and the forming yield is improved.

The above description should not be taken as limiting the scope of the utility model, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims (6)

1. The utility model provides a high-efficient die-cut drawing die, includes upper die, lower mould and matches the guide structure who installs therebetween, upper die is last to be established upper die base, cope match-plate pattern, lower die is last to establish the lower mould, its characterized in that:

The lower die holder is provided with a lower base plate, the lower base plate is provided with a forming plate, and the forming plate is provided with more than one lower die punch which is matched with a product and extends along the die assembly direction;

The lower end part of the upper template is slidably embedded with an inner stripper plate, the inner stripper plate is arranged right above the forming plate, the outer contour of the inner stripper plate is matched with the outer contour of a product, the inner stripper plate can slide on the upper template along the die assembly direction under the action of external force, the lower end part of the inner stripper plate is provided with more than one upper die insert matched with the product, and each upper die insert is matched and arranged right above one lower die insert.

2. The efficient punching and drawing die set according to claim 1, wherein an upper cover plate arranged above the upper die holder is further arranged on the upper die, a plurality of elastic components are arranged on the upper cover plate, each elastic component is in transmission connection with more than one top plate, more than one rod extending along the die opening direction is arranged on each top plate, and each rod sequentially penetrates through the upper die holder and the upper die plate and is propped against the inner stripping plate.

3. An efficient die-cutting and drawing die as defined in claim 2, wherein each of said resilient members is a spring or a nitrogen spring.

4. A high efficiency die cutting and drawing die according to any one of claims 1 to 3, wherein the lower end of the upper die plate is provided with a clamping groove matched with the outer contour of the product, and the side wall of the clamping groove is provided with a plurality of guide grooves extending along the die closing direction.

5. The efficient die-cutting and drawing die set forth in claim 4, wherein a first guide member is provided on the lower die beside the forming plate, and a second guide member is provided on the upper die, which is matched with the first guide member.

6. The efficient die-cutting and drawing die set forth in claim 4, wherein said lower die is provided with a stopper on a side of said forming plate.