CN219292655U

CN219292655U - Riveting device capable of simultaneously riveting multiple rivets

Info

Publication number: CN219292655U
Application number: CN202223607021.9U
Authority: CN
Inventors: 丁爱生; 费业龙
Original assignee: Dongguan Bonteck Hardware Co ltd
Current assignee: Dongguan Bonteck Hardware Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-04
Anticipated expiration: 2032-12-30

Abstract

The utility model provides a riveting device that can rivet many rivets simultaneously, includes upper mould and lower mould, and the bottom of upper mould is equipped with pushes away the material piece, and the lower mould includes lower mould body, takes off flitch, elastic component and setting element, takes off the flitch and locate the top of lower mould body and have the activity space between the two, the one end of elastic component and lower mould body butt, the other end and the take off the flitch butt of elastic component, the setting element is installed in the top of taking off the flitch; the stripper plate is provided with a plurality of first through holes arranged along the vertical direction, the lower die body is provided with an ejector piece, and the ejector piece is in sliding plug fit with the first through holes; the locating piece is equipped with the hole of placing that communicates and equidirectional setting with first perforation, places the hole and pushes away the position of material piece relatively, places downthehole rivet that is equipped with, the bottom of rivet and the top contact of ejecting. Compared with the prior art, the riveting device can rivet multiple riveting pins at the same time, is also suitable for the condition of short distance between the riveting pins, and has the advantages of simple structure, low production and manufacturing cost and stable riveting process.

Description

Riveting device capable of simultaneously riveting multiple rivets

Technical Field

The utility model relates to the technical field of riveting devices, in particular to a riveting device capable of simultaneously riveting a plurality of rivets.

Background

After the metal or plastic part is molded, one or more steel or other alloy positioning pins are usually riveted on the molded part according to the requirements of assembly or functions and performances of the whole machine, and the riveted position is often influenced by the structure of the product and cannot be unfolded. Based on this, the current solution is to customize special equipment, which requires high costs. And when meeting and need many locating pins of riveting, because of the structure restriction of customization equipment itself, like pay-off on the machine head and riveting device size are great, when the distance between the locating pin is less than 20mm, the equipment of customization also can't accomplish simultaneously riveting, needs other riveting equipment of additional customization this moment, and this very big increases riveting cost.

Publication number CN105935726a provides a method for lock plate riveting, in which an upper die of a press is provided with a plurality of punching pins that press down the metal of the stacked rivet of the panel and the lock frame into the pocket of a lower die, thereby riveting the lower rivet with the upper rivet. Although the above discloses a structure capable of riveting a plurality of positions at the same time, the above disclosed structure is not suitable for riveting a positioning needle on a metal or plastic part. In addition, if the positioning needle equipment on the existing riveted metal or plastic part adopts the upper die structure, the rigidity of the punching needle during use can be insufficient, the punching needle is easy to damage, and the service life is low.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the riveting device capable of simultaneously riveting a plurality of rivets, which has the advantages of simple structure, low production and manufacturing cost and stable riveting process.

In order to achieve the above purpose, the riveting device capable of simultaneously riveting a plurality of rivets comprises an upper die and a lower die, wherein a pushing piece is arranged at the bottom of the upper die, the lower die comprises a lower die body, a stripper plate, an elastic piece and a positioning piece, the stripper plate is arranged above the lower die body, a movable space exists between the stripper plate and the lower die body, one end of the elastic piece is abutted with the lower die body, the other end of the elastic piece is abutted with the stripper plate, and the positioning piece is arranged at the top of the stripper plate;

the stripper plate is provided with a plurality of first through holes arranged along the vertical direction, the lower die body is provided with an ejector, and the ejector is in sliding plug fit with the first through holes;

the locating piece is equipped with the hole of placing that communicates and equidirectional setting with first perforation, place the hole and push away the position of material piece relatively, place and be equipped with the rivet in the hole, the bottom of rivet and the top contact of ejecting.

Further, the ejection piece is a thimble, one end of the ejection piece is fixedly connected with the lower die body, and the side wall of the other end of the thimble is in sliding fit with the inner wall of the first perforation.

Further, the radial section of the ejection piece is circular, and the section of the placement hole is square.

Further, before die assembly, the end part of the ejection piece, which is close to the upper die, is in sliding plug fit with the placement hole.

Further, the distance between the lower die body and the stripper plate before die assembly is y, the shortened distance in the rivet riveting process is x, and the two satisfy the following relation:

y＝x。

further, the stripper plate is provided with a fixing needle.

Further, the lower die body comprises a lower bottom plate, a lower push plate and a fixing piece which are sequentially connected from bottom to top, the movable space is reserved between the stripper plate and the fixing piece, and the end part of the elastic piece, which is far away from the stripper plate, is abutted with the lower push plate;

the fixing piece is provided with a second perforation which is opposite to the first perforation, and the ejection piece is fixed in the second perforation.

Further, a loop bar is fixedly connected to the lower push plate, the end part of the loop bar, which is far away from the lower push plate, is in sliding insertion fit with the stripper plate, and the elastic piece is sleeved on the loop bar.

Further, the plurality of loop bars are provided, and the plurality of loop bars are uniformly distributed.

Further, the lower die body further comprises supporting plates arranged on two sides of the stripper plate, and the top of each supporting plate is used for supporting the bottom of the upper die during die assembly.

Compared with the prior art, the utility model has the beneficial effects that: when the riveting device is used, a product is placed on the positioning piece, and a hole on which a positioning needle (namely a rivet) is required to be arranged is opposite to the placing hole and is positioned on the stripper plate through the positioning piece; and then the upper die moves downwards, the upper die pushes down the product through the pushing piece so as to push the stripper plate to move downwards until the stripper plate contacts with the top surface of the lower die body, and in the process, the rivet protrudes out of the placing hole and is riveted under the action of the ejection piece and the pushing piece so as to be fixed on the product. The above rivet is placed in placing the hole, and its space that occupies is little, compact structure, even the product needs a plurality of rivets of riveting simultaneously, and the setting element also can set up the holding hole of corresponding quantity and hold the rivet in order to realize the riveting of a plurality of rivets, in addition, because the rivet is through ejecting piece and take off the flitch and rivet, consequently, even the distance between the rivet is little, riveting device also can realize the riveting. The above riveting device can realize the riveting of a plurality of rivets with different distances, has compact structure, and the whole cost of device is low, has effectively alleviated even solved the riveting in the prior art a plurality of rivets with different distances and has needed many equipment to rivet.

Drawings

FIG. 1 is a front view of the riveting device of the present utility model;

FIG. 2 is a semi-sectional view of the riveting device of FIG. 1;

FIG. 3 is an exploded view of the lower mold;

FIG. 4 is a top view of the positioning member;

FIG. 5 is an enlarged partial schematic view of FIG. 2A;

an upper die 1; an upper base plate 11; an upper push plate 12; a pushing member 13; a guide post 14;

a lower die 2; a lower die body 21; a lower plate 211; a lower push plate 212; a fixing member 213; a stripper plate 22; a first perforation 221; an elastic member 23; a positioning member 24; a placement hole 241; an ejector 25; a support plate 26; a fixing needle 27; a loop bar 28;

a rivet 3;

product 4.

Detailed Description

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The technical scheme of the utility model is further described below with reference to fig. 1-5.

A riveting device capable of simultaneously riveting a plurality of rivets 3, see fig. 1 to 3, comprises an upper die 1 and a lower die; the upper die 1 comprises an upper bottom plate 11 and an upper push plate 12, the upper push plate 12 is fixedly connected below the upper bottom plate 11, a pushing piece 13 is fixedly connected below the upper push plate 12, and when the upper die 1 is used, the upper die 1 can be connected and fixed with a common oil pressure punch or a pneumatic punch so as to drive the upper die to move up and down; the lower die comprises a lower die body 21, a stripper plate 22, an elastic piece 23 and a positioning piece 24, wherein the lower die body 21 comprises a lower bottom plate 211, a lower push plate 212 and a fixing piece 213 which are sequentially and fixedly connected from bottom to top, one end of the elastic piece 23 is connected to the lower push plate 212, and the other end of the elastic piece 23 is connected to the bottom of the stripper plate 22, so that the stripper plate 22 is arranged above the fixing piece 213; there is a movable space between the lower push plate 212 and the fixing member 213, which can enable the stripper plate 22 to be pushed down above the positioning member 24 when the upper die 1 and the lower die are clamped, thereby realizing the riveting of the rivet 3. The positioning member 24 is fixedly connected to the top surface of the stripper plate 22 so as to position the product 4. The stripper plate 22 is provided with a plurality of first through holes 221 arranged along the vertical direction, the lower die body 21 is provided with an ejector piece 25, and the ejector piece 25 is in sliding plug fit with the first through holes 221; the positioning member 24 is provided with a placement hole 241 which is communicated with the first perforation 221 and is arranged in the same direction (along the vertical direction), the placement hole 241 is opposite to the pushing member 13, a rivet 3 is arranged in the placement hole 241, the bottom of the rivet 3 is contacted with the top of the ejection member 25, and the side wall of the rivet 3 is matched with the inner wall of the placement hole 241. The above connection means of the fixed connection may be made by screws, bolts or other connection means in the art.

When the riveting device is used, rivets 3 are placed into each placing hole 241, then a product 4 is placed on the positioning piece 24, and the holes on the product 4, where positioning pins (namely the rivets 3) are required to be arranged, are opposite to the placing holes 241 and are positioned on the stripper plate 22 through the positioning piece 24; subsequently, the upper die 1 moves downward, and the upper die 1 pushes down the product 4 by the pusher 13 to push the stripper plate 22 downward until the stripper plate 22 contacts the top surface of the fixing member 213, and in this process, the rivet 3 protrudes out of the placement hole 241 and is riveted by the ejector 25 (supporting the rivet 3) and the pusher 13 (pushing down the product 4 to thereby push down the rivet 3) to be fixed to the product 4. The above rivet 3 is placed in the placement hole 241, and its space that occupies is little, compact structure, even if product 4 needs a plurality of rivets 3 of simultaneous riveting, setting element 24 also can set up the holding hole of corresponding quantity and hold rivet 3 in order to realize the riveting of a plurality of rivets 3, and in addition, because rivet 3 is through ejecting member 25 and take off the flitch 22 and rivet, consequently, even if the distance between rivet 3 is little, riveting device also can realize the riveting. The above riveting device can realize the riveting of a plurality of rivets 3 with different distances, has compact structure, and the whole cost of the device is low, effectively alleviates and even solves the problem that a plurality of rivets 3 with different distances need a plurality of devices to be riveted in the prior art.

In this embodiment, there are a plurality of pushing members 13, each pushing member 13 is set to different heights according to the position of riveting, and the bottom surface of the pushing member 13 is also set to a flat surface or an inclined surface correspondingly to adapt to the pressing. The pushing piece 13 is arranged, so that the rivet 3 on the product 4 at different positions can be pressed and riveted, and meanwhile, the rivet 3 on different heights can be also used, the structure is simple, the application range is wide, and the applicability is strong. In addition, the lower die body 21 further comprises supporting plates 26 arranged on two sides of the stripper plate 22, and the top of each supporting plate 26 is used for supporting the bottom of the upper die 1 during die assembly, so that the upper die 1 can be supported, and meanwhile, the upper die 1 can be limited, and the riveting effect is prevented from being influenced or damage to the product 4 caused by the movement of the upper die 1. In addition, the mouth of the placement hole 241 has a flaring structure, so that the rivet 3 can be placed in the placement hole 241 more simply, and the placement efficiency of the rivet 3 can be improved.

In this embodiment, the ejector 25 is a thimble, and the number of the thimble is selected according to the number of the riveting pins required to be riveted during use. The fixing member 213 is provided with a second through hole opposite to the first through hole 221, and one end of the ejector 25 is fixed to the push-down plate 212 through the second through hole. The shape and the size of the second perforation are the same as the cross-sectional shape and the size of the thimble, so that the thimble can be stably fixed in the fixing piece 213 to effectively support the riveting needle, the riveting needle is ensured to rivet, and the problem that the riveting needle cannot effectively rivet due to insufficient rigidity is avoided. The side wall of the other end of the thimble is in sliding fit with the inner wall of the first perforation 221, so that the first perforation 221 can also effectively ensure the rigidity of the end part of the thimble, and is favorable for riveting the riveting needle. The ejector 25 is in a needle structure, so that the occupied space is small, and a plurality of ejectors 25 can be arranged on the stripper plate 22, so that a plurality of riveting needles can be riveted; the riveting can be performed even if the distance between the riveting pins is short. It should be noted that the above ejector pins are different from the ejector pins in the injection molding process, in which the ejector pins are driven to move so as to eject the injection molded part, and in this process, the ejector pins mainly play a role in pushing, but do not play a role in bearing for connection. In the use of the novel ejector pin, it is fixed on the lower push plate 212, and in the riveting process, the ejector pin bears the acting force of the upper die 1 on the rivet 3, thereby assisting in riveting.

In the present embodiment, referring to fig. 3 to 4, the radial cross section of the ejector 25 is circular, and the cross section of the placement hole 241 is square. In the riveting process, the side wall of the ejection piece 25 is in sliding fit with the placement hole 241, namely when the ejection piece moves downwards to place the hole 241 and the side wall of the ejection piece 25 relatively slides, the side wall of the ejection piece 25 is stuck on the placement hole 241, and the contact between the ejection piece 25 and the placement hole 241 is in line contact, so that the friction force between the ejection piece 25 and the placement hole 241 is reduced, the relative movement between the rivet 3 and the positioning piece 24 is smoother, and the riveting needle is prevented from being blocked in the placement hole 241 in the moving process. It should be noted that, during the injection molding process, the shape of the ejector pin hole is adapted to the cross-sectional shape of the ejector pin, that is, if the cross-sectional shape of the ejector pin is circular, the cross-sectional shape of the ejector pin hole is also circular, which is mainly for preventing glue leakage, so that the cross-sectional shape of the ejector pin hole during injection molding cannot be set to be square.

In this embodiment, referring to fig. 5, before the upper die 1 and the lower die are clamped, the upper end of the ejector 25 is slidably attached in the placement hole 241, so that when the upper die 1 presses down the product 4 to move the stripper plate 22 downward, the ejector 25 can slide relative to the placement hole 241, and interference or jamming between the two cannot occur, so that smoothness of the riveting process and smoothness of movement of the stripper plate 22 are ensured, and the ejector pin is not easy to bend due to jamming.

In this embodiment, before the upper die 1 and the lower die are clamped, the movable space is formed between the stripper plate 22 and the fixing member 213 by the elastic member 23, that is, a distance between the fixing plate and the stripper plate 22 is denoted as y. During the riveting process of the rivet 3, the rivet 3 is riveted and shortened, the shortened distance is x, and the following relation is satisfied between the two:

y＝x。

the distance between the fixing plate and the stripper plate 22 is set to be equal to the shortened distance of the rivet 3, so that the shortened distance of the rivet 3 in the riveting process is fully utilized, the space between the fixing plate and the stripper plate 22 is ensured to be riveted, meanwhile, the damage of the thimble in the movable space due to insufficient rigidity in the riveting process is avoided, and the use quality, the service life and the riveting quality of the rivet 3 are ensured. It should be noted that if x is greater than y, the depth of the rivet 3 will be insufficient, and the riveting result will not be satisfied, and if x is less than y, the breakage of the ejector pin will directly affect the service life.

In this embodiment, referring to fig. 3, the stripper plate 22 is fixedly connected with a fixing pin 27, and when the product 4 is positioned on the positioning member 24, the fixing pin 27 passes through the hole on the product 4 to firmly connect the product 4 to the stripper plate 22, which is beneficial to the stability of the riveting process.

In this embodiment, referring to fig. 3, a sleeve rod 28 is fixedly connected to the lower push plate 212, and an end of the sleeve rod 28 away from the lower push plate 212 is in sliding insertion fit with the stripper plate 22, so that the stripper plate 22 can slide along the sleeve rod 28 when moving downward. The elastic member 23 is a compression spring, and the elastic member 23 is sleeved on the loop bar 28 so as to fix the loop bar 28. In the present embodiment, the stripper plate 22 is supported by the elastic members 23, so that in order to stably connect the stripper plate 22 and maintain it in a horizontal position, the loop bars 28 and the elastic members 23 are provided with four and are arranged centrally and symmetrically, so that stable connection of the stripper plate 22 can be ensured.

In this embodiment, referring to fig. 1 to 2, the bottom of the upper push plate 12 is provided with a guide post 14, and the stripper plate 22 is provided with a guide hole. The guide post 14 and the guide hole not only play a role in guiding the stripper plate 22, but also can keep the stripper plate 22 in the horizontal direction, so that the riveting effect is prevented from being influenced by the inclination of the stripper plate 22.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A riveting device capable of simultaneously riveting a plurality of rivets, which is characterized in that: the upper die comprises an upper die and a lower die, a pushing piece is arranged at the bottom of the upper die, the lower die comprises a lower die body, a stripper plate, an elastic piece and a positioning piece, the stripper plate is arranged above the lower die body, a movable space exists between the stripper plate and the lower die body, one end of the elastic piece is abutted to the lower die body, the other end of the elastic piece is abutted to the stripper plate, and the positioning piece is arranged at the top of the stripper plate;

2. The riveting apparatus for simultaneously riveting a plurality of rivets as set forth in claim 1, wherein: the ejector is a thimble, one end of the ejector is fixedly connected with the lower die body, and the side wall of the other end of the thimble is in sliding fit with the inner wall of the first perforation.

3. The riveting apparatus for simultaneously riveting a plurality of rivets as set forth in claim 2, wherein: the radial section of the ejection piece is circular, and the section of the placement hole is square.

4. The riveting apparatus for simultaneously riveting a plurality of rivets as set forth in claim 1, wherein: before die assembly, the end part of the ejection piece, which is close to the upper die, is in sliding plug fit with the placement hole.

5. The riveting apparatus for simultaneously riveting a plurality of rivets as set forth in claim 1, wherein: the distance between the lower die body and the stripper plate before die assembly is y, the shortened distance in the rivet riveting process is x, and the distance between the lower die body and the stripper plate meets the following relational expression:

y＝x。

6. the riveting apparatus for simultaneously riveting a plurality of rivets as set forth in claim 1, wherein: the stripper plate is provided with a fixed needle.

7. The riveting apparatus for simultaneously riveting a plurality of rivets as recited in any one of claims 1-6, further comprising: the lower die body comprises a lower bottom plate, a lower push plate and a fixing piece which are sequentially connected from bottom to top, the movable space exists between the stripper plate and the fixing piece, and the end part of the elastic piece, which is far away from the stripper plate, is abutted with the lower push plate;

8. The riveting apparatus for simultaneously riveting a plurality of rivets as recited in claim 7, further comprising: the lower push plate is fixedly connected with a loop bar, the end part of the loop bar, which is far away from the lower push plate, is in sliding insertion fit with the stripper plate, and the elastic piece is sleeved on the loop bar.

9. The riveting apparatus for simultaneously riveting a plurality of rivets as set forth in claim 8, wherein: the loop bars are a plurality of, and a plurality of loop bars are evenly distributed.

10. The riveting apparatus for simultaneously riveting a plurality of rivets as recited in claim 7, further comprising: the lower die body further comprises supporting plates arranged on two sides of the stripper plate, and the top of each supporting plate is used for supporting the bottom of the upper die during die assembly.