KR101937045B1 - Device for forming hole in forging rivet - Google Patents

Abstract

Disclosed is a device for forming a hole in a forging rivet. According to the present invention, the device can comprise: a feeder sequentially supplying a forging rivet; a transport conveyor heating the forging rivet with a hot wire while transporting the supplied forging rivet to a transport knife; a fixing dice having a fixing rivet groove that covers a portion of a body of the heated forcing rivet and a pin protrusion hole that is located in the fixing rivet groove and including a pin that protrudes through the pin protrusion hole to pass through the forging rivet; the transport knife transporting the forging rivet from the transport conveyor to the fixing rivet groove; and a moving dice having a moving rivet groove corresponding to the fixing rivet groove of the fixing dice, having a pin insertion groove into which a portion of the pin can be inserted, and moving to the fixing dice.

Description

[0001] The present invention relates to a device for forming a hole in a forging rivet,

The present invention relates to a device for forming a hole in a forged rivet, and to a device for forming a hole in a forged rivet to drill a body center hole of a forged rivet.

We have used borscht or drill to form holes in forged rivets. After securing the forged rivet, the drill head was moved to the forging rivet to form a parser hole with a drill bit rotating the surface of the forged rivet in contact with the drill bit. Accordingly, there is a problem in that the time required for digging holes is increased.

Further, when the holes of the forged rivets are formed by drill bits, there is a problem that the dimensions of the holes formed in the forged rivets vary. In other words, due to the limit of the structural shape of the pointed drill bit, there is a problem that the dimension of the entrance of the drill bit is matched but the dimension of the opposite side is changed.

In the case of processing the forged rivet into the borehole, the work for fixing the forged rivet and the operation for separating the forged rivet from the finished work are manually performed, which requires a long time for the work and thus the productivity is reduced.

As a related art reference, Korean Patent Laid-Open Publication No. 10-2012-0081357 (July 19, 2012) entitled " Hole Precision Forming Apparatus and Method for Precisely Forming Holes of Various Parts "and Korean Registered Patent Publication No. 10-1295337, Aug. 12, 2013), "Perforating device of sheet metal and method thereof ".

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for forming a hole in a forged rivet capable of forming a hole in a forged rivet in a short time.

Another object to be solved by the present invention is to provide an apparatus for forming a hole in a forged rivet capable of precisely punching a forged rivet.

It is another object of the present invention to provide an apparatus for forming a hole in a forged rivet capable of automatically removing an annular groove formed after a hole is formed in a forged rivet.

A further object of the present invention is to provide an apparatus for forming a hole in a forged rivet capable of automatically performing a process of forming a hole in a forged rivet.

According to another aspect of the present invention, there is provided an apparatus for forming a hole in a forged rivet, comprising: a feeder for sequentially supplying a forged rivet; a feeder for feeding the forged rivet; And a pin protruding hole positioned in the fixed rivet groove. The pin protruding hole protrudes through the pin protruding hole to penetrate the forged rivet, A moving knife for moving the forged rivet from the conveying conveyor to the fixed rivet groove, and a moving rivet groove corresponding to the fixed rivet groove of the fixed die, wherein a part of the pin is inserted A pin insertion hole is formed in the fixed die, have.

Wherein the conveying conveyor includes a bottom supporting portion forming a floor, a left side wall located on the left side of the bottom supporting portion, a right side wall located on the right side of the bottom supporting portion, a left heating line located on the inside of the left side wall, And the right heating line to the right.

Wherein the fixed die includes a fixed portion to which the pin is fixedly attached and a movable portion formed with the fixed rivet groove and the pin projecting hole and being pressed against the fixed portion by the movable die, The pin may protrude through the pin protruding hole to penetrate the heated portion of the forged rivet and be inserted into the pin inserting hole.

The transfer knife may include a body having a groove into which the forged rivet transferred from the conveying conveyor is inserted and an elastic member attached to one side of the body and having a restoring force for returning the body moved to the fixing rivet groove have.

The apparatus for forming a hole in the forged rivet may further include a feed knife position adjusting unit for pushing the body of the feed knife so that the body of the feed knife is moved to the fixed rivet groove, A shaft portion which is coupled to the head portion at one end and which reciprocates in a direction of moving in the conveying knife direction, and a cam portion that reciprocates the shaft portion.

According to the apparatus for forming a hole in a forged rivet according to the present invention, by heating a forged rivet and forming a hole by drilling the heated portion with a fin, the time required for the pin to penetrate is shortened, And a hole having a size corresponding to the diameter or the cross-sectional area of the pin is formed by being inserted into the movable die through the forged rivet, whereby the hole can be precisely pierced and the carcass can be automatically removed,

 The forged rivet is automatically moved to the fixed die by the transfer knife, the forged rivet is automatically fixed to the movable die and the fixed die by the movement of the movable die, and the forged rivet is automatically The process of forming the hole in the forged rivet can be performed automatically without complicated automation equipment.

1 is a schematic plan view of an apparatus for forming a hole in a forged rivet according to an embodiment of the present invention;
2 is a partial cross-sectional view of a conveyance conveyor according to an embodiment of the present invention.
FIG. 3A is a perspective view showing a part of a transfer knife according to an embodiment of the present invention, and FIG. 3B is a plan view showing a part of a transfer knife according to an embodiment of the present invention.
4 is a view showing an overall configuration of a feeder, a conveying conveyor, and a conveying knife according to an embodiment of the present invention.
FIG. 5 is a view showing an overall shape of a mobile die and a fixed die according to an embodiment of the present invention.
6 is a vertical cross-sectional view of a mobile die and a fixed die according to an embodiment of the present invention.
FIG. 7 is a view showing a state in which the movable die is moved to the fixed die in FIG.
8 is a view showing a state in which the transfer knife is moved in FIG.
Fig. 9 is a view showing an embodiment in which a forged rivet pressing member is added in Fig. 6. Fig.

Hereinafter, an apparatus for forming a hole in a forged rivet according to the present invention will be described in detail with reference to the accompanying drawings. The structure and operation of the present invention shown in the drawings and described by the drawings are described as at least one embodiment, and the technical ideas and the core structure and operation of the present invention are not limited thereby.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, it is possible to use general terms that are currently widely used, but this may vary depending on the intention or custom of a person skilled in the art or the emergence of new technology. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, it is to be understood that the term used in the present invention should be defined based on the meaning of the term rather than the name of the term, and on the contents of the present invention throughout.

1 is a schematic plan view of an apparatus for forming a hole in a forged rivet according to an embodiment of the present invention;

Referring to FIG. 1, an apparatus 10 for forming holes in a forged rivet according to the present invention includes a feeder 100, a conveying conveyor 200, a conveying knife 300, a conveying knife position adjusting unit 400, A dice 500 and a mobile die 600.

The feeder 100 sequentially supplies the forged rivets 20 to the conveying conveyor 200. [ The feeder 100 can sequentially rotate the forged rivets inside thereof to the conveying conveyor 200 while rotating.

2 is a partial cross-sectional view of a conveyance conveyor according to an embodiment of the present invention.

2, the conveying conveyor 200 conveys the forged rivet 20 supplied from the conveying conveyor 200 to the conveying knife 300 while heating the forged rivet 20 with the heating lines 225 and 235 . The conveying conveyor 200 includes a bottom supporting part 210 forming a floor, a left side wall 220 located on the left side of the bottom supporting part 210, a right side wall 230 located on the right side of the bottom supporting part 210, And a right heating wire 235 located inside the right side wall 230. The left heating wire 225 and the right heating wire 235 may be disposed in the right side wall 230 and the right side wall 230, respectively.

In some embodiments, the conveying conveyor 200 is formed to be inclined from the feeder 100 side to the conveying knife 300 side so that the forged rivet 20 is moved from the feeder 100 side to the conveying knife 300 side by gravity .

In some embodiments, the bottom support 210 includes a conveyor belt so that the forging rivet 20 can be moved as the conveyor belt rotates.

In some embodiments, the bottom support 210 includes a plurality of rotating members, one end of which is coupled to the bottom of the left wall 220 and the other end of which is coupled to the bottom of the right wall 230, 20 can be moved to the transfer knife 300.

The forged rivet 20 is inserted into the conveying conveyor 200 and is momentarily heated by the left heating line 225 and the right heating line 235 while moving to the conveying knife 300. The left heating line 225 and the right heating line 235 can heat the forging rivet 20 from 500 to 600 degrees Celsius. When the forged rivet 20 is heated to 500 캜 or more, it is possible to easily punch the forged rivet 20 with a pin by a punching method. When the forging rivet is used for drilling holes, it is necessary to drill 5 tons of drills. However, when the forging rivets 200 are heated, a large force is not required and holes can be drilled through the pins. The hole forming time can be shortened. That is, if the moving speed of the pin is increased, the hole forming time can be shortened as much.

FIG. 3A is a perspective view showing a part of a transfer knife according to an embodiment of the present invention, and FIG. 3B is a plan view showing a part of a transfer knife according to an embodiment of the present invention.

Referring to FIGS. 3A and 3B, the transfer knife 300 can transfer the forged rivet 20 from the conveying conveyor 200 to the fixed die 300. The transfer knife 300 includes a body 310 having a groove 313 for receiving the forged rivet 20 transferred from the conveying conveyor 200, a body 310 attached to one side of the body 310, And a resilient portion 330 having a restoring force for returning the body 310.

The body 310 may include a knife 311 formed with a groove 313 and a binding portion 320 inserted and coupled to the knife 311.

The elastic part 330 includes a first elastic member 340 attached to one side of the binding part 320 and having a restoring force for returning the binding part 320 moved by the fixed die 300, And a second elastic member 350 having a restoring force for returning the binding portion 320 attached to the other side and moved to the fixed die 300 and the fixing portion 360. The first elastic member 340 and the second elastic member 350 are coupled and fixed to the fixing portion 360. [

The transfer knife position adjustment unit 400 can push the body 310 of the transfer knife 300 so that the transfer knife 300 is moved to the fixed die 500. The transfer knife position adjusting unit 400 includes a head unit 410 pushing the body 310 of the transfer knife 300 and a reciprocating motion unit 420 coupled to the head unit 410, And a cam portion 430 for reciprocating the shaft portion 420. The cam portion 430 may be formed as a flat plate.

In some embodiments, the head portion 410 may be coupled to the shaft portion 420 in a rotatable manner at a predetermined angle. Accordingly, the head part 410 can be easily inserted into the gap between the body 310 and the elastic part 330, and as the insertion depth increases, the head part 410 can be inserted deeper There is an effect. Here, the preset angle may be within the range of 5 to 45 degrees. If the angle is smaller than 5 degrees, it is difficult to have a rotation effect. If the angle is 45 degrees or more, the head portion 410 may be unnecessarily rotated.

The cam portion 430 includes a circular cam 435 connected to the body 433 and the shaft portion 420 so that the circular cam 435 can move along the path of the upper portion of the body 433 while rotating. For example, there are two gears engaged at the bottom of the cam portion 430, so that the two gears can be rotated by the motor to rotate the circular cam 435.

4 is a view showing an overall configuration of a feeder, a conveying conveyor, and a conveying knife according to an embodiment of the present invention.

Referring to FIG. 4, the forged rivet 20 may include a body 25 and a head 23, which is located above the body 25 and has a cross-sectional area larger than that of the body 25. The forged rivet 20 which has been lowered through the conveying conveyor 200 is caught by the groove 313 of the conveying knife 300. The head 23 is hooked on the upper portion of the curled portion 311 and the body 25 is attached to the groove 313. [

FIG. 5 is a view showing an overall shape of a mobile die and a fixed die according to an embodiment of the present invention, and FIG. 6 is a vertical sectional view of a mobile die and a fixed die according to an embodiment of the present invention.

5 and 6, the fixed die 500 may include a fixed portion 510 and a moving portion 550 that is pressed against the fixed portion 510 and is brought into close contact with the fixed portion 510.

A pin 520 for penetrating the forged rivet 20 is fixedly attached to the fixing portion 510. The pin 520 may be fixed to the fixing portion 510 by the fixing member 523. [ The fixing member 523 may be a bolt or a wrench. The fixing portion 510 may include four fixing members 523, and the four fixing members 523 may be respectively located in regions corresponding to left, right, and bottom portions of the upper portion.

The moving part 550 is formed with a fixed rivet groove 560 for covering a part of the body 25 of the heated forged rivet 20 and a pin projecting hole 563 located in the fixed rivet groove 560.

The movable die 600 moves to the fixed die 500 to bring the moving part 510 into close contact with the fixing part 510. The moving die 600 is provided with a moving rivet groove 610 at a position corresponding to the fixed rivet groove 560 of the fixed die 500 and a moving rivet groove 610 is formed in the moving rivet groove 610 And may include a pin insertion hole 620 positioned therein. In addition, the moving die 600 may further include a moving passage 630 connected to the pin insertion hole 620 so as to remove the prongs of the forged rivet.

FIG. 7 is a view showing a state in which the movable die is moved to the fixed die in FIG.

7, when the moving part 550 moves to the fixing part 510, the pin 520 protrudes through the pin protruding hole 563, penetrates the hole in the heated part of the forged rivet 20, And can be inserted into the insertion hole 620. When the movable die 600 moves to the fixed die 500, the movable die 600 is brought into contact with the movable portion 550, so that the movable rivet groove 610 is in contact with the fixed rivet groove 560, (20). The movable die 600 moves until the moving part 550 is brought into close contact with the fixing part 550. [ As the moving part 550 is moved to the fixing part 510 the pin 520 protrudes through the pin protruding hole 563 to penetrate the heated part of the forged rivet 20 and insert into the pin inserting hole 620 A hole is formed in the forged rivet 20 and the hall guillotine 29 produced by the hole formation is moved along the pin 520 and inserted into the pin insertion hole 620 and moved for acceleration and gravity And may be discharged out of the mobile die 600 through the passage 630.

The fixed die 500 has an elastic member 530 having one end coupled to the fixing portion 510 and the other end connected to the moving portion 550 and the elastic member 530 positioned inside the elastic member 530, And an elastic member pin shaft 540 that supports the holding part 550. The fixed die 500 may include four pairs of the elastic member 530 and the elastic member pin shaft 540 as a pair. The fixed die 500 includes two pairs of left and right upper portions (elastic member 530 and elastic member pin shaft 540) and two pairs (elastic member 530 and elastic member pin shaft 540) (540). This can be confirmed from Figs. 1 and 6.

As shown in FIG. 6, the elastic member 530 normally keeps the moving part 550 away from the fixing part 510. When the movable die 600 pushes the fixing portion 510, the elastic member 530 is compressed as shown in Fig. When the movable die 600 is moved to its original state (normal state), the pressed elastic member 530 is restored to place the fixed portion 510 in its original state (normal state). The elastic member 530 may be a spring, and may be formed of a material having an elastic force or an elastic device.

The fixed die 500 may further include a die pin shaft 570. The die pin shaft 570 supports the fixing portion 510 so that the fixing portion 510 does not come out normally (the fixing portion 510 is spaced apart). The fixed die 500 may include four dice pin shafts 570. The fixed die 500 may include two left and right upper portions and two at a position corresponding to the lower portion. This can be confirmed by Fig. 1 and Fig.

8 is a view showing a state in which the transfer knife is moved in FIG.

Referring to FIG. 8, the moving unit 550 may further include a magnet member 553. The magnet member 553 is located opposite to the conveying conveyor 200 and guides the forged rivet 20 descending through the conveying conveyor 200 to be caught in the groove 313 of the conveying knife 300. The magnet member 553 guides the body 25 of the forged rivet 20 to adhere to the surface of the groove 313 and the head 23 of the forged rivet 20 is guided by the knife portion 311).

8 so that the shaft 420 moves in the direction of the transfer knife 300 and the head part 410 moves in the direction of the transfer knife 300. As the circular cam 435 rotates and moves along the path of the upper part of the body 433 of the cam part 430, Is further inserted into the gap between the body 310 of the transfer knife 300 and the elastic portion 330 to push the body 310 of the transfer knife 300 by the length l. The body 310 of the transfer knife 300 can be moved to the fixed die 500 by a length of 1 so that the groove 313 is positioned in the fixed rivet groove 560. Thus, the forged rivet 20 is moved to the fixed rivet groove 560. At this time, the head 23 of the forged rivet 20 is caught by the curled portion 311, and can be supported so as not to fall off during the movement.

When the groove 313 of the transfer knife 300 is moved to the fixed rivet groove 560, the knife 311 blocks the inlet 203 of the conveying conveyor 200 so that the forged rivet 20 is moved to the conveying conveyor 200. [ .

The moving die 600 is brought into close contact with the fixed die 500 when the groove 313 of the transfer knife 300 moves back to the inlet 203 of the conveying conveyor 200, Is caught on the upper portion of the fixing portion 550 where the fixed rivet groove 560 is located and is caught on the upper portion of the movable die 600 on which the movable rivet groove 610 is located. The body 25 of the forged rivet 20 is wrapped by the fixed rivet groove 560 and the moving rivet groove 610 so that the fixed rivet 20 is stably fixed to the fixed die 500 and the movable die 600 Lt; / RTI >

Fig. 9 is a view showing an embodiment in which a forged rivet pressing member is added in Fig. 6. Fig.

Referring to FIG. 9, the moving die 600 may further include a forged rivet pressing member 650. The forged rivet pressing member 650 can be coupled to the moving die 600 with the connecting member 660. [ The forged rivet pressing member 650 can be engaged with the connecting member 660 so as to be movable up and down in a predetermined angular range. For example, the connecting member 660 may be a bolt, a hole may be formed in the forged rivet pressing member 650 to allow the connecting member 600 to pass therethrough, and the connecting member 600 and the forged rivet An elastic member can be disposed between the pressing members 650. [ It can be moved up and down by a preset angle range of the forged rivet pressing member 650 by the expansion and contraction function of the elastic member.

The forging rivet pressing member 650 extends from the connecting member 660 to the moving rivet groove 610 and is formed so as to protrude more than the moving rivet groove 610. The forging rivet pressing member 650 pushes down the head of the forged rivet 20 and pushes down the head so that the head 23 of the forging rivet 20 is pressed against the fixed die 500, (Not shown).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Feeder 100 conveying conveyor 200
Feed knife 300 Feed knife position adjuster 400
Fixed Dice 500 Move Dice 600

Claims (5)

A feeder for sequentially supplying the forged rivets;
A conveying conveyor for heating the forged rivet with a heating line while conveying the supplied forged rivet with a conveying knife;
A fixed rivet groove for wrapping a part of the body of the heated forged rivet and a pin projecting hole for positioning the fixed rivet groove, and a pin for projecting through the pin projecting hole and passing through the forged rivet, Dice;
A transfer knife for transferring the forged rivet from the conveying conveyor to the fixed rivet groove; And
And a movable die formed with a movable rivet groove corresponding to the fixed die groove of the fixed die and having a pin insertion hole for inserting a part of the pin,
In the forged rivet,
And a head located at an upper portion of the body and having a cross-sectional area larger than that of the body,
The transfer knife
And a body formed with a groove into which the forged rivet conveyed from the conveying conveyor is inserted,
Wherein the head of the forging rivet is engaged with the upper portion of the body of the conveying knife and the body of the forging rivet is attached to a groove formed in the body of the conveying knife. The method according to claim 1,
The conveying conveyor
A bottom support forming a bottom;
A left side wall positioned on the left side of the bottom support;
A right side wall located on the right side of the bottom support;
A left heating wire located inside the left side wall; And
And a right heating line located inside the right side wall of the forged rivet. The method according to claim 1,
The fixed die
A fixing part to which the pin is fixedly attached; And
And a moving part formed with the fixed rivet groove and the pin projecting hole and pressed against the fixed part by the moving die,
Wherein when the moving part moves to the fixing part, the pin protrudes through the pin protruding hole to break the hole in the heated part of the forged rivet and insert the pin into the pin inserting hole. Device. The method according to claim 1,
The transfer knife
Further comprising an elastic member attached to one side of the body and having a restoring force for returning the body moved to the fixed rivet groove. 5. The method of claim 4,
Further comprising a transfer knife position adjuster for pushing the body of the transfer knife so that the body of the transfer knife is moved to the fixed rivet groove,
Wherein the transfer knife position adjusting unit comprises:
A head portion pushing the body of the transfer knife;
A shaft portion coupled to the head portion at one end and reciprocatingly moving in a direction of the transport knife; And
And a cam portion for reciprocating the shaft portion. The apparatus for forming a hole in a forged rivet according to claim 1,

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