KR101543244B1 - Rivet feeding device and self piercing rivet system having the same - Google Patents

Rivet feeding device and self piercing rivet system having the same Download PDF

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Publication number
KR101543244B1
KR101543244B1 KR1020130169430A KR20130169430A KR101543244B1 KR 101543244 B1 KR101543244 B1 KR 101543244B1 KR 1020130169430 A KR1020130169430 A KR 1020130169430A KR 20130169430 A KR20130169430 A KR 20130169430A KR 101543244 B1 KR101543244 B1 KR 101543244B1
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KR
South Korea
Prior art keywords
rivet
passage
feeding
block
self
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KR1020130169430A
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Korean (ko)
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KR20150080350A (en
Inventor
박병준
이문용
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주식회사 성우하이텍
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Priority to KR1020130169430A priority Critical patent/KR101543244B1/en
Publication of KR20150080350A publication Critical patent/KR20150080350A/en
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Publication of KR101543244B1 publication Critical patent/KR101543244B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
    • B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements

Abstract

A self-piercing rivet system is disclosed. The self-piercing rivet system includes a frame mounted on an arm end of a robot, a punch unit provided on an upper side of the frame, an anvil unit provided on a lower side of the frame, and a rivet supply device for supplying a rivet by a punch unit. The apparatus includes a main rivet feeding part installed at the bottom of a work area for aligning a plurality of rivets and shooting a rivet as air pressure, a second riveting part connected to the main riveting part through a first feeding hose, And a sub-riveting part connected to the punch unit through the punch unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a riveting device, and a self-piercing rivet system including the same.

An embodiment of the present invention relates to a self-piercing rivet system, and more particularly to a rivet feeder for feeding a self-piercing rivet with a punch of a setting tool.

In the automobile industry, the use of aluminum alloys and plastic materials to improve fuel efficiency due to environmental problems has been aimed at reducing the weight of the vehicle body.

For this purpose, in the automobile industry, a joining method capable of replacing conventional spot welding for assembling a vehicle body is being studied.

Recently, a self-piercing rivet system has been adopted as a self-piercing rivet bonding method as a bonding method that meets this expectation.

The self-piercing rivet jointing method is different from the conventional riveting method in which a hole for riveting is formed on a joining object such as a steel plate and a rivet is inserted into the hole and then the head is molded to join the object to be joined. Or the rivet is subjected to plastic deformation by press-fitting the rivet into the object to be bonded by air pressure to join the object to be bonded.

In the self-piercing rivet jointing method as described above, for example, a self-piercing rivet made of a head and a partially hollow cylindrical shank is used to fasten the object to be joined between upper and lower plates such as a metal sheet material.

For example, the self-piercing rivet is pierced by a punch of the setting tool so that the shank penetrates the upper plate of the object to be joined and flares outwardly by the envelope. The shank is press-fitted into the lower plate with the head portion supporting the upper plate, The upper and lower plates can be joined.

Therefore, in the self-piercing rivet system, when the rivet is pushed through the upper plate and penetrates into the lower plate when the object to be joined is positioned between the punch and the anvil, So that the objects to be joined are integrally joined together while being expanded and deformed in the radial direction.

Thus, bonding techniques using self-piercing rivets can be used to bond components such as aluminum bodywork that are not easy to spot weld.

In addition, the joining technique using the self-piercing rivets not only produces joints with excellent strength and fatigue characteristics that can be easily automated in the production line, but also causes little distortion of the top surface of the sheet material around the rivets Since joints are aesthetically acceptable, they have proved successful in this context.

1 is a sectional view showing a self-piercing rivet system according to the prior art.

1, a conventional self-piercing rivet system 200 includes a frame 1 and a punch unit 2 provided on the upper side of the frame 1 to provide a pressing force to the rivet R , And an anvil unit (3) is provided on the lower side of the frame (1) corresponding to the punch unit (2).

Here, the punch unit 2 can be provided with the rivet R from the rivet feeder 9, and can provide the pressing force to the rivet R through the punch cylinder 4 driven by hydraulic pressure or pneumatic pressure.

The punch unit 2 is provided with a receptacle 5 for guiding the rivet R supplied from the rivet feeder unit 9. The receptacle 5 is pushed by the punch cylinder 4 to the navel unit 3 And a striking mechanism 6 for pushing / striking the rivet R by the punch cylinder 4 is provided inside the receptacle 5. The striking mechanism 6 is provided with a striking mechanism 6,

The receptacle 5 is lowered by the punch cylinder 4 in a state in which the rivet R is supplied from the rivet feeder 9 to the receptacle 5, Clamping is performed. Then, when the striking mechanism 6 presses and presses the rivet R against the object to be bonded, the object to be bonded can be integrally joined as the plastic deformation of the rivet R by the anvil unit 3.

The rivet feeder 9 for feeding the rivet R to the receptacle 5 of the punch unit 2 is connected to the receptacle 5 via the feeding hose 8 and the rivet R is connected to the air To the receptacle (5) through the feeding hose (8).

In the prior art, however, the rivet feeder 9 and the receptacle 5 of the punch unit 2 are connected by a feeding hose 8 having a length of 20 m or more, and the rivet R is fed through the feeding hose 8 Since the supply of the rivet R from the rivet feeder 9 to the receptacle 5 takes a long time, productivity may be reduced.

 In the prior art, since the rivet R is fed from the rivet feeder 9 to the receptacle 5 through the long feeding hose 8, the rivet R is fed through the feeding hose 8 The rivet (R) is caught by the feeding hose (8) to stop the supply of the rivet, causing a malfunction or malfunction of the equipment, and the continuous operation of riveting and riveting due to the non- It is a difficult situation.

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

Embodiments of the present invention provide a rivet feeding apparatus and a self-piercing rivet system including the rivet feeding apparatus, which can reduce the feeding time of the rivet fed to the punching unit and minimize the interruption of feeding of the rivet by the feeding hose.

A self-piercing rivet system according to an embodiment of the present invention includes a frame mounted on an arm end of a robot, a punch unit provided on the upper side of the frame, an anvil unit provided on a lower side of the frame, Wherein the rivet feeding device comprises a main riveting part installed at the bottom of the work area for aligning a plurality of rivets and shooting the rivet as air pressure, And a sub rivet feeding part connected to the main rivet feeding part and connected to the punch unit through a second feeding hose.

Also, in the self-piercing rivet system according to the embodiment of the present invention, the sub rivet feeding portion temporarily waits for a rivet supplied through the first feeding hose from the main riveting portion, And can be supplied to the punch unit through a hose.

Further, in the self-piercing rivet system according to the embodiment of the present invention, the sub rivet feeding part may include a base member installed to the robot, a main rivet feeding part installed on the base member, A rivet inlet block connected to the base member and connected to the punch unit via the second feeding hose and connected to the inlet passage of the rivet inlet block, A connecting block having a connecting passage for connecting the inlet passage and the outlet passage in a forward and backward movement between the rivet drawing block and the rivet drawing block and having a connecting passage for connecting the inlet passage and the drawing passage, .

Also, in the self-piercing rivet system according to the embodiment of the present invention, the base member may be provided with an operation cylinder for moving the connection block back and forth.

In the self-piercing rivet system according to the embodiment of the present invention, when the riveting operation is performed by the punch unit, the connecting block may be moved backward by the operating cylinder to block the inlet passage and the outlet passage.

Further, in the self-piercing rivet system according to the embodiment of the present invention, when the riveting operation by the punch unit is completed, the connecting block is advanced by the operating cylinder, and the inlet passage and the drawing passage are connected to the connection passage Lt; / RTI >

The rivet supplying device for the self-piercing rivet system according to the embodiment of the present invention includes a frame mounted on the arm tip of the robot, a punch unit installed on the upper side of the frame, and an anvil unit installed on the lower side of the frame A main riveting part for supplying rivets to the punch unit in a self-piercing rivet system, comprising: i) a main riveting part installed at the bottom of the work area for aligning a plurality of rivets and shooting a rivet as air pressure; and ii) And a sub riveting part connected to the main riveting part through a first feeding hose and connected to the punch unit through a second feeding hose.

In the rivet feeding device for the self-piercing rivet system according to the embodiment of the present invention, the sub rivet feeding part may include a base member installed on the robot, and a main member provided on the base member, A rivet receiving block connected to the rivet feeding portion and having an inlet passage through which the rivet fed from the main rivet feeding portion can be inserted, a second rivet receiving block connected to the punch unit through the second feeding hose, And a connecting passage which is installed between the rivet drawing block and the rivet drawing block and is movable forward and backward and which selectively connects the drawing passage and the drawing passage with the rivet drawing block, And may include connecting blocks formed therein.

Also, in the rivet feeding device for the self-piercing rivet system according to the embodiment of the present invention, the sub rivet feeding part may include an operating cylinder installed in the base member and moving the connecting block back and forth.

The embodiment of the present invention has a sub rivet feeding portion for temporarily waiting for a rivet fed one by one from the main rivet feeding portion and for feeding the rivet to the receptacle of the punch unit so that the sub rivet feeding portion is supplied from the main rivet feeding portion to the receptacle of the punch unit It is possible to shorten the supply time of the rivet.

Further, in the embodiment of the present invention, since the sub rivet feeding portion is provided, it is possible to prevent the equipment failure and malfunction such as the rivet being interrupted by the feeding hose, as in the prior art, It is possible to supply rivets and riveting work.

Therefore, in the embodiment of the present invention, it is possible to shorten the supply time of the rivet supplied from the main rivet feeding part to the receptacle of the punch unit, and to continuously supply and rivet the rivet without interruption of supply of the rivet, The productivity and workability of the riveting workpiece by the system can be further improved.

These drawings are for the purpose of describing an exemplary embodiment of the present invention, and therefore the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 is a sectional view showing a self-piercing rivet system according to the prior art.
2 is a schematic view of a self-piercing rivet system according to an embodiment of the present invention.
3 is a schematic view of a rivet feeder for a self-piercing rivet system according to an embodiment of the present invention.
4 and 5 are views for explaining the operation of the rivet feeding device for the self-piercing rivet system according to the embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

In the following detailed description, the names of components are categorized into the first, second, and so on in order to distinguish them from each other in the same relationship, and are not necessarily limited to the order in the following description.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

It should be noted that terms such as " ... unit ", "unit of means "," part of item ", "absence of member ", and the like denote a unit of a comprehensive constitution having at least one function or operation it means.

2 is a schematic view of a self-piercing rivet system according to an embodiment of the present invention.

First, in embodiments of the present invention, a pressurizing source for generating a pressing force and a supporting means for supporting a pressing force of the pressurizing source are provided in one frame, and a tool operated by a pressing force of a pressurizing source And can be applied to a tooling system capable of machining, forming, and bonding.

For example, the tooling system includes a self-piercing rivet system 100 according to an embodiment of the present invention that can use a rivet to bond a bonded object, such as a metallic material.

Referring to FIG. 2, the self-piercing rivet system 100 according to the embodiment of the present invention integrally rivets the metal sheet material of the upper and lower plates, which are the objects to be joined, through a self-piercing rivet R (Joining).

Hereinafter, the following components will be described with reference to a case where the self-piercing rivet system 100 is vertically oriented. The upwardly facing portion may be defined as an upper end or an upper surface, The lower surface or the lower surface.

The above-described direction is a relative meaning, and the direction may vary depending on the reference position and the riveting direction of the self-piercing rivet system 100, so that the reference direction is not necessarily limited to the reference direction of this embodiment .

The self-piercing rivet system 100 according to an embodiment of the present invention is a system in which a self-piercing rivet R is press-fitted into a joining object of metal sheet materials which are overlapped with each other at a constant pressure, So that the objects to be joined can be integrally joined.

Here, the object to be bonded may include a metal sheet material such as an aluminum sheet or a steel sheet (including a high-strength steel sheet), or may include a non-metallic material such as plastic, rubber or the like. In addition, the objects to be bonded may include plate materials of the same kind and may include plate materials of different kinds of materials.

The self-piercing rivet system 100 according to the embodiment of the present invention basically comprises a frame 10, a punch unit 30 as a pressurizing source, an anvil unit 50 as a support means, and a self-piercing rivet R (Hereinafter referred to as "rivets" for convenience) to the punching unit 30. As shown in Fig.

The frame 10 can be moved to the object to be bonded at various positions in accordance with the motion of the robot 11 in a state of being mounted on the arm tip of the robot 11 and can be rotated at an angle set by the arm of the robot 11 .

The frame 10 has a pair of free ends facing each other and forms a C-shaped skeleton, which is also commonly referred to in the art as a "C-frame" or a "C-shaped frame". Hereinafter, a C-frame or a C-type frame is referred to as "frame" for convenience.

For example, the frame 10 may have a truss shape having a plurality of spaces between an exoskeleton and an endoskeletal of a predetermined thickness.

However, in the embodiment of the present invention, the frame 10 is not necessarily made of a truss structure, but may alternatively be made of a C-shaped steel block.

Although the free end portion of the frame 10 is shown on the upper side and the other free end portion is shown on the lower side in the drawing, the position of the free end portion is changed by the position change of the frame 10 according to the behavior of the robot 11 .

The punch unit 30 is a portion to which a rivet R for joining the object to be joined is supplied, and generates a predetermined pressing force and applies the pressing force to the rivet R. [

The punch unit 30 is mounted on one free end of the frame 10 (upper free end in reference to the drawing), and includes a punch housing, a punch housing 30, and a punch cylinder. The punch unit 30 is vertically reciprocated And a receptacle.

Here, the receptacle is lowered by the punch cylinder, and functions to clamp the joining object supported by the anvil unit 50, to guide and position the rivet R.

Inside the receptacle, there is provided a punch mechanism which is operated by a punch cylinder to strike the rivet R and press the rivet R into the object to be joined.

The punch unit 30 is a known punch assembly employed in a self-Piercing Riveting (SPR) system, which is well known in the art, so that a detailed description of the structure will be omitted herein.

The anvil unit 50 is for supporting the pressing force of the rivet R and the punch unit 30 acting on the object to be bonded.

That is, the anvil unit 50 supports the object to be bonded at the lower side of the punch unit 30 with respect to the drawing and supports the pressing force of the punch unit 30 acting on the rivet R, And is for plastic deformation of the end portion of the rivet (R) which is inserted into the lower plate through the upper plate of the object to be joined.

The anvil unit 50 may be installed at the other free end (the lower free end as viewed in the figure) opposite to the one free end of the frame 10.

On the other hand, in the self-piercing rivet system 100 according to the embodiment of the present invention, the rivet supply device 70 is for supplying the rivet R to the receptacle side of the punch unit 30 as the pressure of the air.

3 is a schematic view of a rivet feeder for a self-piercing rivet system according to an embodiment of the present invention.

2 and 3, the rivet supply device 70 according to the embodiment of the present invention can shorten the supply time of the rivet R supplied to the receptacle of the punch unit 30, ) Can be minimized.

To this end, the rivet feeding device 70 according to the embodiment of the present invention basically includes a main riveting part 80 and a sub riveting part 90, and will be described in detail as follows.

The main rivet feeding portion 80 is provided as a rivet feeder as in the prior art. The main rivet feeding portion 80 aligns a plurality of rivets R and feeds the rivet R to a sub- (90). The main riveting part 80 is installed near the robot 11 on the floor of the workplace.

The main riveting portion 80 is formed as a self-piercing rivet feeder, which is a known rivet feeder known in the art, so that a detailed description of its construction will be omitted herein.

The sub riveting part 90 temporarily suspends the rivet R supplied one by one from the main rivet feeding part 80 and conveys the rivet R to the receptacle of the punch unit 30 Feed buffer unit for supplying the intermediate feed buffer unit.

The sub rivet feeding part 90 is installed in the robot 11 and is connected to the main riveting part 80 through a first feeding hose 81 and is connected to the main riveting part 80 through a second feeding hose 82, Of the receptacle.

That is, the sub-riveting part 90 temporarily waits the rivet R supplied from the main riveting part 80 through the first feeding hose 81, and transmits the rivet R to the second feeding hose 81, To the receptacle of the punching unit (30) through the opening (82).

The sub-riveting part 90 includes a base member 91, a rivet drawing block 93, an rivet drawing block 95, a connecting block 97, and an operating cylinder 99.

The base member 91 is fixed to the robot 11. The rivet drawing block 93 is fixed to one side of the upper surface of the base member 91 and is connected to the main riveting part 80 through a first feeding hose 81.

The rivet drawing block 93 forms an inlet passage 94 through which the rivet R supplied from the main riveting portion 80 can be inserted through the first feeding hose 81.

The rivet lead-out block 95 is fixed to the other side of the upper surface of the base member 91 corresponding to the rivet lead-in block 93 and is connected to the receptacle of the punch unit 30 through the second feeding hose 82. [ do.

The rivet R drawn into the inlet passage 94 of the rivet draw-in block 93 forms a draw-out passage 96 which can be drawn out by the second feeding hose 82. [

The connecting block 97 is in surface contact with the rivet drawing block 93 and the rivet drawing block 95 so as to be movable forward and backward on the upper surface of the base member 91.

The connecting block 97 slides on a guide rail (not shown) provided on the upper surface of the base member 91 so as to move back and forth between the rivet drawing block 95 and the rivet drawing block 95, Possibly combined.

The connecting block 97 forms a connecting passage 98 for selectively connecting the inlet passage 94 of the rivet drawing block 93 and the drawing passage 96 of the rivet drawing block 95.

The operating cylinder 99 is for moving the connecting block 97 between the rivet drawing block 93 and the rivet drawing block 95 in the forward and backward directions and fixed to the upper surface of the base member 91, And is connected to the connection block 97 through the operation rod 99a.

Accordingly, in the self-piercing rivet system 100 according to the embodiment of the present invention configured as described above, in the riveting operation of the object to be joined by the punch unit 30, in the embodiment of the present invention, And moves the connecting block 97 backward through the operating cylinder 99. [ At this time, the connecting block 97 is in surface contact with the rivet drawing block 93 and the rivet drawing block 95 and moves backward.

As the connection block 97 is moved backward, the connection block 97 blocks the withdrawal passage 96 of the rivet withdrawing block 95 and the withdrawal passage 94 of the rivet withdrawal block 93. That is, the lead-in passage 94 of the rivet lead-in block 93 and the lead-out lead passage 96 of the rivet lead-out block 95 are not connected to the connecting passage 98 of the connecting block 97, They are blocked on both sides and blocked from each other.

In this state, the rivet R is supplied to the sub rivet feeding portion 90 through the main rivet feeding portion 80, and the rivet R is fed as the air pressure to the first feeding hose 81 Into the inlet passage 94 of the rivet-receiving block 93. The rivet-

Since the inlet passage 94 of the rivet draw-in block 93 is blocked by the side surface of the connecting block 97, the rivet R stands by in the inlet passage 94 of the rivet draw-in block 93 .

On the other hand, when the riveting operation of the object to be joined by the punch unit 30 is completed, the connecting block 97 is moved forward through the operating cylinder 99 as shown in Fig. 5 in the embodiment of the present invention. At this time, the connection block 97 is in surface contact with the blocks between the rivet drawing block 93 and the rivet drawing block 95 and moves forward.

As the connecting block 97 is moved forward, the connecting block 97 is connected to the connecting passage 94 of the rivet drawing block 93 and the drawing passage 96 of the rivet drawing block 95 to the connecting passage 98 ).

The rivet R waiting in the inlet passage 94 of the rivet receiving block 93 is discharged from the inlet passage 94 to the connecting block 97 by the pressure of the air supplied from the main riveting portion 80 To the withdrawing passage 96 of the rivet withdrawing block 95 through the connecting passage 98 of the punch unit 30 and drawn out of the withdrawing passage 96 and through the second feeding hose 82 to the receptacle .

Therefore, according to the self-piercing rivet system 100 according to the embodiment of the present invention, the above-described series of processes is repeated and the rivet R shot from the main rivet feeding portion 80 is fed to the sub rivet feeding portion 90 To the receptacle of the punching unit 30. [0064]

In the embodiment of the present invention, the sub rivet feeding portion 90 for temporarily holding the rivet R supplied from the main rivet feeding portion 80 one by one and feeding the rivet R to the receptacle of the punching unit 30 The supply time of the rivet R supplied from the main rivet feeding portion 80 to the receptacle of the punch unit 30 can be shortened.

Also, in the embodiment of the present invention, since the sub riveting part 90 is provided, it is possible to prevent the equipment failure and malfunction such as the rivet R being caught by the feeding hose, , Continuous riveting and riveting operations can be performed without interrupting the supply of the rivet.

Thus, in the embodiment of the present invention, it is possible to shorten the supply time of the rivet R supplied to the receptacle of the punch unit 30 from the main rivet feeding portion 80, It is possible to further improve the productivity and workability of the riveting workpiece.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Other embodiments may easily be proposed by adding, changing, deleting, adding, etc., but this is also within the scope of the present invention.

10 ... frame 11 ... robot
30 ... Punch unit 50 ... Envil unit
70 ... rivet supply device 80 ... main rivet feeding part
81 ... first feeding hose 82 ... second feeding hose
90 ... sub rivet feeding portion 91 ... base member
93 ... rivet inlet block 94 ... inlet passage
95 ... rivet withdrawal block 96 ... withdrawal passage
97 ... connection block 98 ... connection passage
99 ... working cylinder 99a ... working rod
R ... rivet

Claims (9)

A self-piercing rivet system comprising a frame mounted on an arm end of a robot, a punch unit provided on the upper side of the frame, an anvil unit provided on a lower side of the frame, and a rivet supply device for supplying a rivet with the punch unit ,
The rivet supply device comprises:
A main rivet feeding part installed at the bottom of the work area for aligning a plurality of rivets and shooting the rivet as air pressure,
A sub riveting part connected to the main rivet feeding part through a first feeding hose and connected to the punch unit through a second feeding hose,
Wherein the self-piercing rivet system comprises: The method according to claim 1,
Wherein the sub-
Wherein the rivet is temporarily waiting for the rivet supplied through the first feeding hose from the main rivet feeding part and supplies the rivet to the punch unit through the second feeding hose. The method according to claim 1,
Wherein the sub-
A base member provided on the robot,
A rivet inlet block provided on the base member and connected to the main rivet feeding portion through the first feeding hose and having a feed passage through which the rivet fed from the main rivet feeding portion can be fed,
A rivet pull-out block provided on the base member and connected to the punch unit via the second feeding hose, the rivet pull-out block having a pull-out passage through which the rivet pulled into the pull-in passage of the rivet pull-
A connecting block having a connecting passage which is installed between the rivet drawing block and the rivet drawing block and is movable forward and backward and selectively connects the drawing passage and the drawing passage,
Wherein the self-piercing rivet system comprises: The method of claim 3,
Wherein the base member is provided with an operating cylinder for moving the connecting block back and forth. 5. The method of claim 4,
The connection block includes:
Wherein the operating cylinder is retracted to block the inlet passage and the outlet passage during riveting operation by the punching unit. 6. The method of claim 5,
The connection block includes:
Wherein when the riveting operation by the punch unit is completed, the operation cylinder is advanced by the operating cylinder and connects the inlet passage and the outlet passage through the connection passage. A rivet feeding apparatus for feeding a rivet to a punch unit in a self-piercing rivet system including a frame mounted on an arm end of a robot, a punch unit provided on an upper side of the frame, and an anvil unit provided on a lower side of the frame,
A main riveting part installed at the bottom of the work area for aligning a plurality of rivets and shooting a rivet as air pressure; And
A sub riveting part connected to the main rivet feeding part through a first feeding hose and connected to the punch unit through a second feeding hose,
Wherein the rivet supply device is a rivet supply device for a self-piercing rivet system. 8. The method of claim 7,
Wherein the sub-
A base member provided on the robot,
A rivet inlet block provided on the base member and connected to the main rivet feeding portion through the first feeding hose and having a feed passage through which the rivet fed from the main rivet feeding portion can be fed,
A rivet pull-out block provided on the base member and connected to the punch unit via the second feeding hose, the rivet pull-out block having a pull-out passage through which the rivet pulled into the pull-in passage of the rivet pull-
A connecting block having a connecting passage which is installed between the rivet drawing block and the rivet drawing block and is movable forward and backward and selectively connects the drawing passage and the drawing passage,
Wherein the rivet supply device is a rivet supply device for a self-piercing rivet system. 9. The method of claim 8,
Wherein the sub-
And an operating cylinder installed on the base member and moving the connecting block forward and backward. The rivet supplying apparatus for a self-piercing rivet system according to claim 1,
KR1020130169430A 2013-12-31 2013-12-31 Rivet feeding device and self piercing rivet system having the same KR101543244B1 (en)

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