CN217223226U

CN217223226U - Novel in-mold riveting structure

Info

Publication number: CN217223226U
Application number: CN202123455012.8U
Authority: CN
Inventors: 钱晓晨; 杨勇; 王玉佳
Original assignee: Suzhou Helin Micro Technology Co ltd
Current assignee: Suzhou Helin Micro Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-19
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a novel in-mold riveting structure. The novel in-mold riveting structure comprises a plurality of continuous bending molds and a plurality of continuous riveting molds, wherein one of the riveting molds comprises an upper mold and a lower mold; the upper mold comprises an upper mold base, an upper base plate, an upper clamping plate, a back stripping plate and a stripper plate; the upper mold base, the upper base plate, the upper clamping plate, the back stripping plate and the stripper plate are sequentially arranged from top to bottom; the lower mold comprises a lower mold plate, a lower base plate and a lower mold base; the lower mold plate, the lower base plate and the lower mold base are sequentially connected from top to bottom; and a riveting punch is arranged above the lower mold plate. According to the novel in-mold riveting structure, two riveting products can be continuously produced in one material belt of one mold, the production process is simplified, the production efficiency is improved, and the situation that two sets of molds and two material belts are needed due to cross riveting of the two material belts is avoided; and the mold and material cost is saved, riveting in one material belt can be shaped in multiple procedures, and the riveting quality is improved.

Description

Novel in-mold riveting structure

Technical Field

The utility model relates to a riveting die technical field specifically is a novel riveting structure in mould.

Background

In the structural design of the precision progressive stamping die, the continuous stamping field is a new breakthrough, and the application is greatly improved. Referring to fig. 6, the part is made of brass (C2680) and has a thickness of 0.2mm, the part is composed of a product a1 and a product b2, the parts are connected together through riveting, the two products can rotate freely after being riveted, in-mold riveting is that the two products are in two strips, a first strip is produced, then when a second strip is produced, the first strip is fed in a cross-shaped mode for riveting, the operation is complex, and the riveting efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel riveting structure in mould realizes that similar punching press product accomplishes the riveting in one set of mould material area to can realize the plastic many times to the riveting, avoid two material areas riveting in the past to cause the material extravagant, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a novel riveting structure in mould, includes a plurality of moulds and a plurality of riveting mould in succession of bending, one of them riveting mould includes mould and lower mould, it includes that upper die base, upper padding plate, punch holder, back of the body take off the board, take off the flitch to go up the mould, upper die base, upper padding plate, punch holder, back of the body take off the board, take off the flitch from the top down and set gradually, the lower mould includes lower bolster, lower bolster and die holder, lower bolster and die holder from the top down connect gradually, the lower bolster top is provided with the riveting drift.

As further optimization, the upper clamping plate and the back stripping plate are elastically and movably arranged.

Preferably, a clamping plate insert is arranged in the upper clamping plate, and the riveting punch is fixedly arranged on the clamping plate insert in the upper clamping plate.

As further optimization, a stripping plate inlet block is arranged in the stripping plate.

Preferably, the back stripping plate is provided with a punch guide through hole which penetrates through the stripping plate inlet block.

And as further optimization, a lower die insert block is arranged on the lower template, and a riveting piece is placed on the lower die insert block.

Preferably, the riveting punch comprises a punch rod and a punch part, wherein the upper end of the punch part is set to be cylindrical, and the lower end of the punch part is set to be an arc-shaped conical surface.

Preferably, the outer diameter of the cylindrical section of the upper end of the punch part is smaller than the outer diameter of the punch rod.

Advantageous effects

The utility model provides a novel in-mold riveting structure, which realizes the continuous production of two riveting products in one material belt of one set of mold, simplifies the production process, improves the production efficiency, avoids the cross riveting of two material belts to cause two sets of molds and two material belts; the riveting device has the advantages that the cost of the die and the material is saved, the riveting can be shaped in multiple sequences in one material belt, the riveting quality is improved, the riveting device is easy to popularize to products with similar shapes, and the riveting device is widely applied to continuous stamping.

Drawings

Fig. 1 is a schematic structural view of the riveting die of the present invention before riveting (step 10);

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is a schematic structural view of the riveted mold of the present invention (step 10);

fig. 4 is a schematic view of a bending mode of the present invention;

FIG. 5 is a schematic view of the riveting method of the present invention;

fig. 6 is a schematic view of a riveting structure in the background art of the present invention.

Reference numerals

The riveting die comprises a product a1, a product b2, an upper die base 3, an upper padding plate 4, an upper clamping plate 5, a back stripping plate 6, a stripping plate 7, a lower die plate 8, a lower padding plate 9, a lower die base 10, a riveting punch 11 and a stripping insert 13.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Examples

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the protection scope of the present invention.

Referring to fig. 4 and 5, two products a1& b2 are correspondingly attached to a strip up and down in a strip; after the previous process is stretched and the shape is cut, the riveting process is divided into 10 processes; the position of the product b2 is fixed, and from the process S1 to the process S7, the 7 processes move the position of the product a1 to the position right above the product b2 through multi-step bending of the loading scrap 15, and align the riveting holes of the product a1 and the product b2 through adjustment of the bending positions; the process S8 presses the product a1 into the flanged hole of the product b 2; step S9 pre-riveting, step S10 finishing riveting of the product a and the product b; step S11 cuts the product from the tape to obtain the desired product.

Referring to fig. 1-3, in this embodiment, the riveting die that completes process 10 includes an upper die and a lower die, the upper die includes an upper die base 3, an upper padding plate 4, an upper clamping plate 5, a back stripping plate 6, and a stripping plate 7, the upper die base 3, the upper padding plate 4, the upper clamping plate 5, the back stripping plate 6, and the stripping plate 7 are sequentially disposed from top to bottom, the lower die includes a lower template 8, a lower padding plate 9, and a lower die base 10, the lower template 8, the lower padding plate 9, and the lower die base 10 are sequentially connected from top to bottom, a riveting punch 11 is disposed above the lower template 8, and along with downward linear motion of the punch from a top dead center, the riveting punch 11 is pressed downward under the action of inertia of the punch, and riveting of two products is completed.

In this embodiment, the upper clamping plate 5 and the back stripper plate 6 are elastically and movably arranged, when the punch press descends, the stripper plate 7 and the riveting punch 11 synchronously descend until the stripper plate 7 contacts with the product a or the product b, the stripper plate 7 does not descend, the riveting punch 11 continues to descend to complete riveting of the product a and the product b, and at this time, the upper clamping plate 5 moves downwards close to the back stripper plate 6 to play a role in assisting material pressing before riveting.

In this embodiment, be provided with splint income piece 12 in the punch holder 5, riveting drift 11 fixed mounting takes off and is provided with stripper income piece 13 in the flitch 7 on splint income piece 12 in the punch holder 5, takes off and is provided with drift guide hole on the board 6 on the back of the body, and drift guide hole runs through stripper income piece 13, is provided with lower mould income piece on the lower bolster 8, has placed the riveting piece on the lower mould income piece.

In this embodiment, riveting drift 11 includes drift pole and drift portion, and drift portion upper end sets up to cylindricly, and the lower extreme sets up to the arc conical surface, and the cylinder section external diameter of drift portion upper end is less than the external diameter of drift pole, and the arc conical surface is favorable to guiding riveting drift 11 to get into the riveting hole to gradually with the riveting hole expansion, compress tightly product a surface to the lower terminal surface of drift pole with the riveting hole outside limit of product b, accomplish the riveting action.

The working principle is as follows: two products are correspondingly connected to the material belt up and down in one material belt, the stretching of the previous process is completed, after the appearance is cut, the riveting process is divided into 10 processes, the position of the product b is fixed, from the process S1 to the process S7, the position of the product a1 is moved to the position right above the product b2 through multi-step bending of the material carrying overlap in the S7 processes, and the riveting holes of the product a1 and the product b2 are aligned through adjustment of the bending position; the process S8 presses the product a1 into the flanged hole of the product b 2; in step S9, pre-riveting, in step S10, the riveting punch 11 is pressed down by the inertia of the punch as the punch moves linearly downward from the top dead center, and the riveting of the two products is completed.

Claims

1. The utility model provides a novel riveting structure in mould which characterized in that: including a plurality of moulds of bending in succession and a plurality of riveting die utensil in succession, one of them riveting die utensil includes mould and lower mould, go up the mould and include upper die base (3), upper padding plate (4), punch holder (5), take off board (6), take off flitch (7) on the back, upper die base (3), upper padding plate (4), punch holder (5), take off board (6), take off flitch (7) from the top down and set gradually on the back, the lower mould includes lower bolster (8), lower bolster (9) and die holder (10), lower bolster (8), lower bolster (9) and die holder (10) from the top down connect gradually, lower bolster (8) top is provided with riveting drift (11).

2. The novel in-mold riveting structure according to claim 1, characterized in that: the upper splint (5) and the back stripping plate (6) are elastically and movably arranged.

3. The novel in-mold riveting structure according to claim 1, characterized in that: a clamping plate insert (12) is arranged in the upper clamping plate (5), and the riveting punch (11) is fixedly arranged on the clamping plate insert (12) in the upper clamping plate (5).

4. The novel in-mold riveting structure according to claim 1, characterized in that: and a stripping plate inlet block (13) is arranged in the stripping plate (7).

5. The novel in-mold riveting structure according to claim 4, wherein: and a punch guide through hole is arranged on the back stripping plate (6) and penetrates through the stripping plate inlet block (13).

6. The novel in-mold riveting structure according to claim 4, wherein: and a lower die insert is arranged on the lower die plate (8), and a riveting piece is placed on the lower die insert.

7. The novel in-mold riveting structure according to claim 1, characterized in that: riveting drift (11) are including drift pole and drift portion, drift portion upper end sets up to cylindric, and the lower extreme sets up to the arc conical surface.

8. The novel in-mold riveting structure according to claim 7, wherein: the outer diameter of the cylindrical section at the upper end of the punch head part is smaller than that of the punch rod.