CN214814010U

CN214814010U - Fine blanking die

Info

Publication number: CN214814010U
Application number: CN202023347276.7U
Authority: CN
Inventors: 黄吉锦; 陈乐平
Original assignee: Zhejiang Boqin Precision Industry Co ltd
Current assignee: Zhejiang Boqin Precision Industry Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-23
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a fine blanking die, include: the stamping die comprises an upper die and a lower die, wherein the upper die comprises an upper die base, an upper base plate, a clamping plate, a back plate and a stripper plate which are sequentially stacked, and two punches which are distributed in a mirror image mode are arranged on the stripper plate; the lower die comprises a lower die plate, a lower base plate and a lower die base which are sequentially stacked, two knife edges are arranged on the lower die plate, a set of knife edges are arranged on the two knife edges, the two sets of knife edges are distributed in a mirror image mode, two sets of first waste material channels and two sets of second waste material channels are arranged on the lower base plate and the lower die base respectively, the knife edges, the first waste material channels and the second waste material channels are aligned up and down, the shapes of the knife edges, the first waste material channels and the second waste material channels are consistent with the shape of a punch, and the fine blanking die can effectively solve the fillet zone of a product through fractional reverse punching (positive and negative repeated punching) of the product and can quickly discharge waste materials generated in the punching process.

Description

Fine blanking die

Technical Field

The utility model relates to a stamping die technical field, more specifically the utility model relates to a fine blanking mould that says so.

Background

Cold stamping is an advanced metal processing method, which is based on plastic deformation of metal, and utilizes a die and a stamping device to process sheet metal to obtain the required shape and size of a part. The stamping process has wide application range, and almost all stamping products, such as automobiles, airplanes, tractors, motors, electric appliances, instruments, railways, post and telecommunications, chemical engineering and daily products for light industry, occupy considerable proportion in each department of national economy.

The cut surface of the product in ordinary stamping is divided mainly into 4 bands: fillet area, bright area, fracture area and deckle edge, and in order to satisfy the operation requirement, the product all need carry out a lot of truings after ordinary punching press, consequently, need design a mould, can improve or solve the fillet area of product cut surface.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a fine blanking mould, this fine blanking mould can effectively solve the fillet area of product through the reverse punching press (the positive and negative punching press repeatedly) of product gradation.

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

a fine blanking die comprising:

the punching die comprises an upper die and a lower die, wherein the upper die comprises an upper die base, an upper padding plate, a clamping plate, a back plate and a stripper plate which are sequentially stacked, two first through grooves are formed in the stripper plate, stripper plates are arranged in the two first through grooves, punches are arranged on the two stripper plates, the two punches are consistent in structure and distributed in a mirror image mode, each punch comprises an extending section and an extending section, the extending sections extend out of the stripper plates, the extending sections extend into the stripper plates, the back plate and the clamping plate, cutting edges are arranged at the end parts of the extending sections, and inclination angles and fillets are arranged at the cutting edges;

the lower die comprises a lower die plate, a lower backing plate and a lower die holder which are sequentially stacked, two second through grooves are formed in the lower die plate, cutter blocks are arranged in the two second through grooves, a set of cutter edges are arranged on the cutter blocks, two sets of first waste material channels and two sets of second waste material channels are arranged on the lower backing plate and the lower die holder respectively, the cutter edges, the first waste material channels and the second waste material channels are aligned up and down, the shapes of the cutter edges, the first waste material channels and the second waste material channels are consistent with the shape of a punch, and the two sets of cutter edges, the two sets of first waste material channels and the two sets of second waste material channels are distributed in a mirror image mode.

And further, the two cutter blocks are provided with positioning blocks and limiting blocks.

And a plurality of limiting plates are arranged at the edge positions of the stripper plates.

Further the bottom of the lower die holder is fixedly connected with a plurality of lower pad feet, the bottom of each lower pad foot is fixedly connected with a lower supporting plate, a stacking space is arranged between every two adjacent lower pad feet, and the stacking space is communicated with a second waste material channel.

The punch is further made of a V4-E material.

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

(1) the fine blanking die of the utility model has two punches distributed in a mirror image way on the upper die, two cutter blocks on the lower die, and cutter edges on the two cutter edges are distributed in a mirror image way, so that the product is reversely punched in a grading way (front and back repeated punching), and the fillet belt of the product can be effectively solved;

(2) the utility model discloses a set up a plurality of foot pads down to make and be provided with between two adjacent foot pads and pile and get the space, the waste material that produces after making the punching press can fall down from edge of a knife, first waste material passageway and second waste material passageway in proper order, and the waste material of quick discharge can pile up in piling up and getting the space, and the waste material of production is unified again after piling up certain quantity and is taken out.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural view of a fine blanking die according to the present invention;

FIG. 2 is a schematic structural view of an upper mold;

FIG. 3 is a schematic structural view of a lower mold;

FIG. 4 is a top view of the lower die;

FIG. 5 is a half sectional view A-A of FIG. 4;

fig. 6 is a schematic structural view of the punch.

Labeled as: 1. an upper die holder; 2. an upper base plate; 3. a splint; 4. a back plate; 5. a material removing plate; 6. removing materials and putting into a plate; 7. punching; 701. inclination angle; 702. round corners; 8. a limiting plate; 9. a lower template; 10. a lower base plate; 11. a lower die holder; 12. a lower foot pad; 13. a lower supporting plate; 14. stacking and taking a space; 15. a cutter block; 16. a limiting block; 17. positioning blocks; 18. a knife edge; 19. producing a product; 20. a first waste channel; 21. a second waste channel.

Detailed Description

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

A fine blanking die comprising:

the mold comprises an upper mold, wherein the upper mold comprises an upper mold base 1, an upper base plate 2, a clamping plate 3, a back plate 4 and a stripper plate 5 which are sequentially stacked, two first through grooves are formed in the stripper plate 5, stripper plates 6 are arranged in the two first through grooves, punches 7 are arranged on the two stripper plates 6, the two punches 7 are consistent in structure and distributed in a mirror image manner, each punch 7 comprises an extending section and an extending section, the extending sections extend out of the stripper plates 6, the extending sections extend into the stripper plates 6, the back plate 4 and the clamping plate 3, cutting edges are arranged at the end parts of the extending sections, and inclination angles 701 and fillets 702 are arranged at the cutting edges;

the lower die comprises a lower die plate 9, a lower cushion plate 10 and a lower die holder 11 which are sequentially stacked, two second through grooves are formed in the lower die plate 9, cutter blocks 15 are arranged in the two second through grooves, a set of knife edge 18 is arranged on each cutter block 15, two sets of first waste material channels 20 and two sets of second waste material channels 21 are arranged on the lower cushion plate 10 and the lower die holder 11 respectively, the knife edge 18, the first waste material channels 20 and the second waste material channels 21 are vertically aligned, the shapes of the knife edge 18, the first waste material channels 20 and the second waste material channels 21 are identical to the shape of the punch 7, and the two sets of knife edges 18, the two sets of first waste material channels 20 and the two sets of second waste material channels 21 are distributed in a mirror image mode.

When a product 19 is processed, the product 19 needs to be punched twice, when the product 19 is punched for the first time, the product 19 is firstly placed on one cutter block 15 of the lower die, then the upper die is driven to be pressed down, the product 19 on the cutter block 15 is punched to complete the first punching, then the second punching is carried out, the product 19 which is punched for the first time is turned over and placed on the other cutter block 15, then the upper die is driven again to be pressed down, and the turned-over product 19 is punched again to complete the processing;

according to the fine blanking die, two punches 7 which are distributed in a mirror image mode are arranged on an upper die, two cutter blocks 15 are arranged on a lower die, and cutter edges 18 on the two cutter edges 18 are distributed in a mirror image mode, so that a product 19 is punched reversely (front and back sides are punched repeatedly) in a graded mode, the problem of a fillet 702 of the product 19 can be effectively solved, an inclination angle 701 and the fillet 702 are arranged at a cutting edge of a stretching section of the punch 7, the smoothness of the cutting surface of the product 19 is improved, and the product 19 does not need to be subjected to multiple fine trimming.

In this embodiment, preferably, as shown in fig. 3 and 4, the two knife blocks 15 are both provided with a positioning block 17 and a limiting block 16, and when a product 19 is placed on the knife edge 18, the product 19 can be quickly positioned and limited by the positioning block 17 and the limiting block 16.

In this embodiment, as shown in fig. 2, preferably, the edge of the stripper plate 5 is provided with a plurality of limiting plates 8, and by providing the plurality of limiting plates 8, when the upper die and the lower die are combined in the stamping process, the pressing stroke of the upper die is limited, so as to prevent the upper die from excessively stamping the product 19.

In this embodiment, as shown in fig. 3 and 5, a plurality of lower pads 12 are fixedly connected to the bottom of the lower die base 11, lower support plates 13 are fixedly connected to the bottoms of the lower pads 12, a stacking space 14 is provided between two adjacent lower pads 12, and the stacking space 14 is communicated with a second waste channel 21; through setting up a plurality of callus on the sole down to make and be provided with between two adjacent lower footpads 12 and pile and get space 14, make the waste material that produces after the punching press can fall down from edge of a knife 18, first waste material passageway 20 and second waste material passageway 21 in proper order, the waste material of quick discharge, the waste material of production can be piled up and is got space 14 in piling up, when piling up in certain quantity again unified taking out.

In the embodiment, the punch 7 is preferably made of a V4-E material, and the V4-E material is powder high-speed steel produced by Wiegmann GmbH, Sweden, and has the advantages of high hardness, high wear resistance and high toughness, so that the service life of the punch 7 can be effectively prolonged.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A fine blanking die, comprising:

2. A fine blanking die according to claim 1, wherein: and the two cutter blocks are provided with positioning blocks and limiting blocks.

3. A fine blanking die according to claim 2, wherein: and a plurality of limiting plates are arranged at the edge positions of the stripper plates.

4. A fine blanking die according to claim 3, wherein: the bottom of the lower die holder is fixedly connected with a plurality of lower pad feet, the bottom of each lower pad foot is fixedly connected with a lower supporting plate, a stacking space is arranged between every two adjacent lower pad feet, and the stacking space is communicated with a second waste material channel.

5. A fine blanking die according to claim 4, wherein: the punch is made of a V4-E material.