CN219503666U - Rivet punching device with protection function - Google Patents

Abstract

The utility model discloses a rivet punching device with a protection function, which relates to the technical field of stamping dies and comprises: the machine bench, the last mould and the lower mould of mutually supporting, go up the mould and be equipped with the drift that is used for pressing the rivet down, the lower mould is including the lower bolster that connects gradually, lower bolster and die holder, be equipped with the lower nib with the rivet adaptation on the lower bolster, be equipped with the rivet in the roof on the die holder, the roof is worn out the lower bolster and part holding is in the lower nib in the roof, the roof is coaxial in lower nib and the rivet, still be equipped with micro-gap switch on the die holder, micro-gap switch is connected with the board electricity, in the roof towards micro-gap switch's contact activity setting, when drift below does not have the rivet, micro-gap switch and board disconnection, the board is used for controlling the drift to stop pushing down. The utility model can control the punch to stop pressing down when no rivet exists below the punch, so as to reduce the probability of the punch to crush the lower die or the product.

Description

Rivet punching device with protection function

Technical Field

The utility model relates to the technical field of dies, in particular to a riveting device with a protection function.

Background

In the related art, a riveting machine is generally used for riveting screws on products, however, if the riveting machine forgets to put rivets or the rivets fall off in the process of riveting, the punch is easy to punch the head to damage the products or the lower die is crushed, so that the production efficiency is low, and the production cost is high.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a rivet punching device with a protection function, which can control the punch to stop pressing down when no rivet exists below the punch, so as to reduce the probability of the punch to crush a lower die or a product.

According to some embodiments of the present utility model, the present utility model provides a riveting device with protection function, comprising: the machine bench, the last mould and the lower mould of mutually supporting, it is equipped with the drift that is used for pressing the rivet downwards to go up the mould, the lower mould is including lower bolster, lower bolster and the die holder that connects gradually, be equipped with on the lower bolster with the lower nib of rivet adaptation, be equipped with the rivet in the die holder, the rivet in the roof wear out lower bolster and part holding in the lower nib, the lower nib with the roof is coaxial in the rivet, still be equipped with micro-gap switch on the die holder, micro-gap switch with the machine bench electricity is connected, in the roof orientation micro-gap switch's contact activity sets up, when drift below does not have the rivet, micro-gap switch's contact with in the roof is contactless, micro-gap switch with the machine bench disconnection, the machine bench is used for controlling the drift stops pushing down.

According to some embodiments of the utility model, the micro switch comprises a switch main body, a pressing arm and a contact, wherein the switch main body is arranged on the lower die holder, the contact is convexly arranged on the top surface of the switch main body, one end of the pressing arm is connected with the top surface of the switch main body, the pressing arm is arranged on the contact in a erecting mode, the other end of the pressing arm is suspended relative to the top surface of the switch main body, and the other end of the pressing arm is fixedly connected with the inner top of the rivet.

According to some embodiments of the utility model, the rivet inner top comprises a push rod, a T-shaped connecting block and a spring which are sequentially connected, a first perforation and a second perforation which are sequentially communicated up and down are arranged on the lower base plate, the diameter of the first perforation is larger than that of the second perforation, the spring is vertically arranged on the lower die holder and partially penetrates into the second perforation, the T-shaped connecting block is accommodated in the first perforation and the second perforation, the push rod penetrates into the lower die hole, the other end of the pressing arm is arranged towards the T-shaped connecting block in the first perforation, and the upper surface of the other end of the pressing arm is in butt joint with the lower surface of the T-shaped connecting block in the first perforation.

According to some embodiments of the utility model, the upper die comprises an upper die holder, an upper base plate and an upper clamping plate which are connected from top to bottom, wherein screw rods are arranged on the upper die holder, the upper base plate and the upper clamping plate in a penetrating mode, and the upper die holder, the upper base plate and the upper clamping plate are mutually fixed through the screw rods.

According to some embodiments of the utility model, the upper die holder, the upper base plate and the upper clamping plate are further provided with a material supporting rod in a penetrating way.

According to some embodiments of the utility model, the top end of the ejector rod is convexly provided with an arc-shaped protrusion, and the maximum diameter of the arc-shaped protrusion in the horizontal direction is smaller than the diameter of the ejector rod.

According to some embodiments of the utility model, the contact and the pressing arm are both conductive metals, and the pressing arm is in contact with the contact to form an electrical connection for opening the micro switch.

According to some embodiments of the utility model, the contact is telescopically arranged relative to a surface of the switch body, and the pressing arm presses against the contact to open the microswitch.

Compared with the prior art, the utility model has at least the following beneficial effects: through set up micro-gap switch in the side of top, and interior top sets up towards micro-gap switch's contact activity, when the rivet has been put correctly to the drift below, the drift is beaten the rivet into in the product and the lower extreme of rivet penetrates down in the nib, thereby drive interior top down movement until interior top reaches micro-gap switch's contact, micro-gap switch and board electricity communicate this moment, the board is when receiving micro-gap switch by the signal of opening, can control the drift and continue to push down and accomplish the pressfitting action of not totally pressfitting rivet yet, otherwise then control the drift stop to push down in order to protect the lower mould, reduce the drift and continue the probability of pushing down bad lower mould or product.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of some embodiments of the present utility model showing a state between an upper die and a lower die when a rivet is not driven into a product;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1 according to some embodiments of the utility model;

FIG. 3 is a schematic view showing a state between an upper die and a lower die when a rivet has been driven into a product according to some embodiments of the present utility model;

fig. 4 is a partially enlarged schematic illustration of portion B of fig. 3 in accordance with some embodiments of the utility model.

The reference numerals are as follows:

an upper die 100; an upper die holder 110; an upper pad 120; an upper clamping plate 130; a punch 131; a lower die 200; a lower template 210; a lower die hole 211; a lower pad 220; a first perforation 221; a second perforation 222; a lower die holder 230; a micro switch 300; a switch body 310; a pressing arm 320; a contact 330; rivet inner top 400; ejector pins 410; an arc-shaped protrusion 411; a T-shaped connection block 420; a spring 430; a screw 500; the material-pushing rod 600.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.

The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. In the description of the present utility model, 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 utility model 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 utility model. 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 utility model, the meaning of "a number", "a plurality" or "a plurality" is two or more, unless specifically defined otherwise. 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 may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. 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. In the present utility model, 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 above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1 to 4, the present utility model proposes a riveting device with protection function, comprising: the machine comprises a machine table, an upper die and a lower die which are matched with each other, wherein the upper die is downwards provided with a punch 131 for pressing rivets, the lower die comprises a lower die plate 210, a lower base plate 220 and a lower die holder 230 which are sequentially connected, a lower die hole 211 which is matched with the rivets is formed in the lower die plate 210, a rivet inner top 400 is arranged on the lower die holder 230, the rivet inner top 400 penetrates out of the lower base plate 220 and is partially contained in the lower die hole 211, the lower die hole 211 and the rivet inner top 400 are coaxial, the lower die holder 230 is also provided with a micro switch 300, the micro switch 300 is electrically connected with the machine table, the inner top is movably arranged towards a contact 330 of the micro switch 300, when no rivet exists below the punch 131, the contact 330 of the micro switch 300 is in non-contact with the inner top, the micro switch 300 is disconnected with the machine table, and the machine table is used for controlling the punch 131 to stop pressing.

Therefore, by arranging the micro switch 300 at the side of the inner top, and the inner top is movably arranged towards the contact 330 of the micro switch 300, when the rivet is correctly placed below the punch 131, the punch 131 drives the rivet into the product and the lower end of the rivet penetrates into the lower die hole 211, so as to drive the inner top to move downwards until the inner top is propped against the contact 330 of the micro switch 300, at the moment, the micro switch 300 is electrically communicated with a machine, when the machine receives a signal that the micro switch 300 is opened, the machine can control the punch 131 to continuously press down to finish the pressing action of incompletely pressing the rivet, otherwise, the punch 131 is controlled to stop pressing down to protect the lower die, and the probability that the punch 131 continuously presses down to crush the lower die is reduced.

It will be appreciated that referring to fig. 2, the micro-switch 300 includes a switch main body 310, a pressing arm 320 and a contact 330, the switch main body 310 is disposed on the lower die holder 230, the contact 330 is convexly disposed on the top surface of the switch main body 310, one end of the pressing arm 320 is connected with the top surface of the switch main body 310, the pressing arm 320 is erected on the contact 330, the other end of the pressing arm 320 is suspended relative to the top surface of the switch main body 310, and the other end of the pressing arm 320 is fixedly connected with the rivet inner top 400. By adopting the form of the pressing arm 320 and the contact 330, the position of the micro switch 300 is not limited to the lower part of the rivet inner top 400, and the arrangement is more flexible.

Further, referring to fig. 2, the rivet inner top 400 includes a mandrel 410, a T-shaped connection block 420 and a spring 430 which are sequentially connected, a first perforation 221 and a second perforation 222 which are sequentially communicated up and down are provided on the lower pad 220, the diameter of the first perforation 221 is larger than that of the second perforation 222, the spring 430 is vertically arranged on the lower die holder 230 and partially penetrates into the second perforation 222, the T-shaped connection block 420 is accommodated in the first perforation 221 and the second perforation 222, the mandrel 410 penetrates into the lower die hole 211, the other end of the pressing arm 320 is arranged towards the T-shaped connection block 420 in the first perforation 221, and the upper surface of the other end of the pressing arm 320 is abutted against the lower surface of the T-shaped connection block 420 in the first perforation 221. Through setting the diameter of the first through hole 221 to be greater than the diameter of the second through hole 222, the T-shaped connecting block 420 is matched, so that the inner roof can be limited through the connecting block in the descending process, and the excessive pressing of the inner roof 400 of the rivet is avoided, so that the micro switch 300 is crushed, and the operation stability of the whole riveting device is improved.

It can be understood that referring to fig. 1, the upper die includes an upper die holder 110, an upper pad 120 and an upper clamping plate 130 connected from top to bottom, a screw 500 is provided on the upper die holder 110, the upper pad 120 and the upper clamping plate 130, and the upper die holder 110, the upper pad 120 and the upper clamping plate 130 are fixed to each other by the screw 500.

It can be understood that the upper die holder 110, the upper pad 120 and the upper clamping plate 130 are further provided with a material supporting rod 600. In some embodiments, the material-propping rod 600 is arranged on the upper die downwards, so that the upper die can prop against a product through the material-propping rod 600 when returning, the product is prevented from being carried to influence the subsequent operation, and the stability of the riveting device in continuous operation is improved.

It will be appreciated that referring to fig. 2, the top end of the ejector pin 410 is convexly provided with an arc-shaped protrusion 411, and the maximum diameter of the arc-shaped protrusion 411 in the horizontal direction is smaller than the diameter of the ejector pin 410. In some implementations, the ejector rod 410 is matched with the inner diameter of the lower die hole 211, and the arc-shaped protrusion 411 is independently arranged to realize abutting connection with the rivet, so that a containing area of waste is reserved, and consistency in riveting is improved.

It is understood that the contact 330 and the pressing arm 320 are both made of conductive metal, and the pressing arm 320 contacts the contact 330 to form an electrical connection for opening the micro switch 300. In some embodiments, by electrically contacting the pressing arm 320 and the contact 330 to form a circuit, the switching function of the micro switch 300 is realized, and there may be better switching delay, and the micro switch 300 will be turned on and off more quickly.

It will be appreciated that the contact 330 is telescopically disposed relative to the surface of the switch body 310, and the pressure arm 320 presses against the contact 330 to open the microswitch 300. In some embodiments, the contact 330 may be further configured to be movable, so as to improve stability of the contact 330, and the contact 330 is indirectly pressed by the pressing arm 320 to implement a switching function, so that the triggering structure of the micro switch 300 is relatively stable. It should be noted that, the forming manner of the micro switch 300 can be reasonably selected by those skilled in the art according to the needs, and the present utility model is not limited thereto.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (8)

1. A rivet setting device with a protective function, comprising: the machine bench, the last mould and the lower mould of mutually supporting, it is equipped with the drift that is used for pressing the rivet downwards to go up the mould, the lower mould is including lower bolster, lower bolster and the die holder that connects gradually, be equipped with on the lower bolster with the lower nib of rivet adaptation, be equipped with the rivet in the die holder, the rivet in the roof wear out lower bolster and part holding in the lower nib, the lower nib with the roof is coaxial in the rivet, still be equipped with micro-gap switch on the die holder, micro-gap switch with the machine bench electricity is connected, in the roof orientation micro-gap switch's contact activity sets up, when drift below does not have the rivet, micro-gap switch's contact with in the roof is contactless, micro-gap switch with the machine bench disconnection, the machine bench is used for controlling the drift stops pushing down.

2. The rivet setting device with the protection function according to claim 1, wherein the micro switch comprises a switch main body, a pressing arm and a contact, the switch main body is arranged on the lower die holder, the contact is convexly arranged on the top surface of the switch main body, one end of the pressing arm is connected with the top surface of the switch main body, the pressing arm is arranged on the contact in a building mode, the other end of the pressing arm is suspended relative to the top surface of the switch main body, and the other end of the pressing arm is fixedly connected with the inner top of the rivet.

3. The rivet punching device with the protection function according to claim 2, wherein the rivet inner top comprises a push rod, a T-shaped connecting block and a spring which are sequentially connected, a first through hole and a second through hole which are sequentially communicated from top to bottom are formed in the lower base plate, the diameter of the first through hole is larger than that of the second through hole, the spring is vertically arranged on the lower die holder and partially penetrates into the second through hole, the T-shaped connecting block is accommodated in the first through hole and the second through hole, the push rod penetrates into the lower die hole, the other end of the pressing arm is arranged towards the T-shaped connecting block in the first through hole, and the upper surface of the other end of the pressing arm is in butt joint with the lower surface of the T-shaped connecting block in the first through hole.

4. The rivet setting device with the protection function according to claim 1, wherein the upper die comprises an upper die holder, an upper base plate and an upper clamping plate which are connected from top to bottom, screw rods are arranged on the upper die holder, the upper base plate and the upper clamping plate in a penetrating mode, and the upper die holder, the upper base plate and the upper clamping plate are mutually fixed through the screw rods.

5. The rivet setting device with protection function according to claim 4, wherein the upper die holder, the upper base plate and the upper clamping plate are further provided with a material supporting rod in a penetrating manner.

6. A riveting apparatus with a protection function according to claim 3, wherein the top end of the ejector rod is convexly provided with an arc-shaped protrusion, and the maximum diameter of the arc-shaped protrusion in the horizontal direction is smaller than the diameter of the ejector rod.

7. The protective rivet apparatus of claim 2 wherein said contact and said pressure arm are both conductive metals, said pressure arm being in contact with said contact to form an electrical connection to open said microswitch.

8. The protective rivet setting device according to claim 2, wherein the contact is telescopically arranged with respect to a surface of the switch body, and the pressing arm presses against the contact to open the micro switch.