JPH10296381A - Riveting device, and magazine type washer feed device for the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the riveting efficiency by efficiently and appropriately, and not manually but mechanically performing the work in which a washer is set to the prescribed part of a riveting device. SOLUTION: A magazine type washer feed device is provided with a magazine 7 which is formed to store a plurality of vertically laminated washers 2 and is arranged on one side of a washer holding mechanism part 3, a push-up means 74 to push up the washer 2 in the magazine 7 so that the upmost washer among a plurality of washers 2 stored in the magazine 7 is fed upward from an opening part 71 provided on an upper end part of the magazine 7, and washer feed jigs 6A, 6B which are reciprocal between the upper position of the magazine 7 and the upper position of the holder 30, and capable of holding the upmost washer to be fed upward of the opening part 71 of the magazine 7 in an attachable/detachable manner, and capable of transferring and feeding it to the upper position of the holder 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rivet setting device used for joining desired members using a rivet and a washer, and a magazine type washer supply device used for the rivet setting device.

[0002]

2. Description of the Related Art As is well known, there are various riveting methods for joining desired members by using rivets. In the case of joining corrugated paper, for example, FIG. A method of using a combination of the rivet 1 and the washer 2 is often used. Both the rivet 1 and the washer 2 are made of synthetic resin,
The rivet 1 is such that a thin portion 10a is provided at the tip of the shaft 10 such that the tip of the shaft 10 is formed in a hollow shape. On the other hand, the washer 2
Is a hole 20 through which the shaft 10 of the rivet 1 can be inserted.
And a concave portion 21 is formed on one surface thereof.

As shown in FIG. 17, the rivet 1 is
The rivet fastening object m1 or m2, such as corrugated paper, is penetrated and driven. In this driving, the thin portion 10a at the tip of the shaft 10 is folded back in the concave portion 21 on the lower surface side of the washer 2. It is transformed and caulked. Therefore, according to such a riveting method, the riveting objects m1 and m2 can be sandwiched between the head 11 of the rivet 1 and the washer 2, and the riveting objects m1 and m2 are like corrugated paper. Even if they are relatively easily damaged, they can be securely and firmly joined without damaging their outer surfaces.

Conventionally, as a device for performing the above-mentioned riveting work, there is a riveting device shown in FIG. 18, for example. This conventional riveting device,
The apparatus includes a washer holding mechanism 3e for holding the washer 2 and a rivet driving mechanism 4e provided above the washer holding mechanism 3e. The washer holding mechanism 3e has a structure in which the pilot pin 31 is supported by the holder 30 so as to be able to move up and down. The washer 2 can be positioned and held on the holder 30 by fitting the washer 2 on the pilot pin 31. It is. On the other hand, the rivet setting mechanism 4e is a mechanism for driving the rivet 1 from above to the rivet setting objects m1 and m2, and includes a pair of chucks 40 and 40 holding the rivet 1 and the rivet 1. It has a stem 41 for pressing downward. A stock portion 42 for stocking a plurality of rivets 1 is provided in the vicinity of the rivet driving mechanism portion 4e. Chuck 4
These are supplied one by one at a predetermined timing into 0 and 40.

To perform a riveting operation using the rivet setting device, first, in a state where the pilot pin 31 of the washer holding mechanism 3e projects above the holder 30, the washer 2 is manually attached to the pilot pin 31. Fit and set on holder 30. Next, after setting the riveting objects m1 and m2 to predetermined positions, the riveting mechanism 4e is operated. As shown in FIG. 19, the rivet driving mechanism 4e opens the pair of chucks 40, 40 while descending.
1 descends and pushes down rivet 1. By this pushing-down operation, the rivet 1 is moved to the rivet fastening object m.
1, m2, and the lower end of the shaft 10 is inserted into the hole 20 of the washer 2 while pushing down the pilot pin 31 into the holder 30. The lower end of the shaft 10 of the rivet 1 is caulked by contacting the upper surface of the holder 30. Therefore, FIG.
Can be riveted.

[0006]

However, in the above-mentioned conventional riveting apparatus, there is no means for mechanizing or automating the operation of setting the washer 2 on the washer holding mechanism 3e. As it did, the work had to be done manually. Therefore, in the related art, the work load of the operator who operates the riveting device has been increased. In addition, since it is difficult to quickly set the washer 2 on the pilot pin 31 by hand, the lead time of the entire rivet tightening operation becomes longer,
Work efficiency was also poor. Further, the stem 41 comes down and abuts on the upper surface of the holder 30 of the riveting device at a high speed. However, it is not always preferable that the operator extends the hand to set the washer 2 on such a portion.

The present invention was conceived under such circumstances, and the operation of setting a washer at a predetermined position of a riveting device is not performed manually.
It is an object of the present invention to make it possible to efficiently and appropriately perform the work by mechanization, and to improve the work efficiency of riveting.

[0008]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention employs the following technical means.

That is, according to a first aspect of the present invention, there is provided a riveting apparatus. The rivet setting device includes a washer holding mechanism configured to be capable of positioning and holding the washer on the holder by fitting a washer for rivet caulking onto a pilot pin supported in a vertically movable manner on the holder. A rivet is driven from above the desired rivet fastening object disposed above the washer holding mechanism, and the lower end of the rivet is swaged on the lower surface side of the washer held by the washer holding mechanism. A riveting mechanism that presses and lowers the rivet, wherein a plurality of the washers are vertically stacked to be housed therein, and one side of the washer holding mechanism unit. Of the magazine arranged in one side and a plurality of washers housed in the magazine,
Push-up means for pushing up a washer in the magazine so that the uppermost washer is sent out from an opening provided at the upper end of the magazine, and a holder for the washer holding mechanism and an upper position of the magazine. A washer supply jig capable of reciprocating between upper and lower positions of the magazine and capable of detachably holding the uppermost washer sent out above the opening of the magazine and transferring and supplying the washer to an upper position of the holder. It is characterized by having.

According to a second aspect of the present invention, there is provided a magazine type washer supply device for a riveting device. This magazine-type washer supply device for a rivet fastening device is a magazine for washer housing formed by stacking a plurality of washers up and down and capable of being housed therein, and a plurality of washers housed in the magazine. A push-up means for pushing up a washer in the magazine so that a washer of the uppermost layer is sent out from an opening provided at an upper end of the magazine, and an upper position of the magazine and a position of a side of the magazine. A washer supply jig that is reciprocally movable between a predetermined position and the uppermost layer washer sent out above the opening of the magazine and detachably holds and transfers and transfers the washer to the predetermined position. It is characterized by having. The magazine type washer supply device for the riveting device is attached to a riveting device having a predetermined washer holding mechanism and a riveting mechanism, and a plurality of washers are sequentially placed on the washer holding mechanism one by one. Used to supply.

According to the present invention, in a state in which a plurality of washers are vertically stacked and accommodated in the magazine, the washer in the magazine is pushed up by pushing-up means, thereby forming the uppermost layer of the plurality of washers. Can be sent out above the opening at the upper end of the magazine. Next, in such a state, when the washer supply jig is advanced from the position above the magazine to the position above the holder of the washer holding mechanism,
The washer of the uppermost layer is detachably held by the washer supply jig, and is transferred and supplied to a position above the holder. In this way, after the washer is transferred and supplied above the holder, the pilot pin supported by the holder is raised, so that the pilot pin can be inserted through the washer. If the pilot pin is inserted through the washer, the washer can be properly separated from the washer supply jig by causing the washer supply jig to perform a retreat operation.
The washer can be positioned and held on the holder. Therefore, by subsequently operating the riveting mechanism, the riveting operation of the desired riveting target can be appropriately performed. Further, a plurality of washers can be accommodated in the magazine, but when one washer is transferred onto the holder of the washer holding mechanism as described above, the next washer is moved to the opening of the magazine. , And the washer can be transferred and supplied again above the holder by the washer supply jig. Therefore, the operation of supplying the washer onto the holder can be continuously performed a plurality of times.

As described above, in the present invention, the operation of setting the washer to the predetermined position of the riveting device can be performed continuously a plurality of times by the mechanical operation. Therefore, compared with the conventional means in which the washer is manually set, the speed of the washer setting operation shortens the lead time of the rivet tightening operation, and the effect that the rivet tightening operation efficiency can be significantly improved. can get. Also,
It is possible to reduce the labor burden on the operator and also eliminate the need for the operator to bring his / her hand close to a member that operates at a high speed, which is preferable from such a viewpoint.

[0013] In a preferred embodiment of the present invention, the washer supply jig is formed of the uppermost layer sent out above the opening of the magazine when the washer supply jig is retracted away from the washer holding mechanism. A first downwardly-facing stopper surface in contact with the upper surface of the uppermost washer so as to prevent the washer from rising above a predetermined height, and a lowermost washer in contact with the first stopper surface. A contact surface portion capable of contacting the outer peripheral surface may be provided, and the vertical height of the contact surface portion may be smaller than the vertical thickness of the washer.

According to such a configuration, the upper surface of the uppermost washer sent out above the opening of the magazine is the first surface.
When the washer supply jig is advanced in the direction of the holder of the washer holding mechanism in the state where the washer is in contact with the stopper surface, the washer is brought into contact with the outer peripheral surface of the uppermost washer so that the washer can be moved. By moving forward with the washer supply jig, it can be transferred and supplied to a position above the holder. In this case, the washer of the uppermost layer is defined at a predetermined height by contacting the first stopper surface, while the vertical height of the contact surface portion is smaller than the vertical thickness of the washer. Thus, it is possible to appropriately prevent the contact surface portion from contacting another washer located below the uppermost washer. Therefore, it is possible to prevent the plurality of washers from being transferred to the position above the holder at one time by the washer supply jig, and the plurality of washers contained in the magazine can be surely moved to the predetermined position one by one. It becomes possible to transfer and supply.

In another preferred embodiment of the present invention,
The washer supply jig is accommodated in the magazine when the uppermost washer is transferred in the direction of the washer holding mechanism and the first stopper surface moves forward from the opening of the magazine. A second stopper surface having a downward contact with the upper surface of the washer so as to prevent a washer to be the next uppermost layer from rising above a predetermined height above the opening of the magazine. Configuration.

According to such a configuration, the washer supply jig advances in the direction of the holder of the washer holding mechanism, and the first jig is provided.
When the stopper surface moves forward from the opening of the magazine, even if the next washer located at the lower stage of the washer of the uppermost layer is pushed up above the opening of the magazine by predetermined pushing means, The washer is prevented from rising above a predetermined height by contacting a second stopper surface provided on the washer supply jig. Therefore, during the transfer / supply operation of the uppermost washer, it is possible to appropriately prevent the next washer from unduly jumping over the opening of the magazine. Further, as a pushing means for pushing up the washer in the magazine upward, it is not necessary to employ a means having a complicated configuration such that the washer in the magazine is pushed up intermittently at a predetermined pitch. That is, as the push-up means in the present invention, it is possible to use a mechanism that constantly applies an upward push-up force to the washer in the magazine by using, for example, air pressure or spring pressure. It can also be simplified.

In another preferred embodiment of the present invention,
The washer supply jig may be provided with a clamp means capable of clamping an outer peripheral surface of the uppermost washer from both sides thereof.

According to such a configuration, when the washer supply jig is operated to transfer and supply a predetermined washer to the position above the holder of the washer holding mechanism, the washer can be clamped by the clamp means. Retention can be ensured. Therefore, for example, in a case where the washer setting operation to the washer holding mechanism is performed at a high speed, when the forward speed of the washer supply jig is increased, a problem that a predetermined washer is pushed out by the washer supply jig is caused. It can be eliminated.

In another preferred embodiment of the present invention,
The washer supply jig may be configured so as to be able to move up and down so as to be able to descend to a position lower than the upper portion of the holder when the jig is retracted away from the washer holding mechanism.

According to this configuration, when the rivet setting mechanism is driven to perform the riveting operation after setting the washer on the holder of the washer holding mechanism, the washer supply jig is connected to the washer holding mechanism. It can be lowered to a position lower than the upper part of the holder. On the other hand, when the rivet is driven into the rivet setting object and the caulking operation is performed, the height of the rivet setting object is the height of the upper portion of the holder. Therefore, as described above, if the washer supply jig is lowered to a position lower than the height of the upper portion of the holder, at the time of riveting, the object to be riveted and the washer supply jig may interfere with each other. Therefore, it is possible to appropriately prevent the washer supply jig from hindering the riveting operation.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a side sectional view showing a main part of an example of a riveting device provided with a magazine type washer supply device A according to the present invention. FIG. 2 is an enlarged sectional view of a main part of the magazine type washer supply device A. FIG. 3 is a plan view of the magazine type washer supply device A. FIG. 4 is a plan view showing a state during the operation of the magazine type washer supply device A.

In FIG. 1, the riveting device is
A magazine type washer supply device A is attached to a bracket arm 91 attached to a chassis 90, and a washer holding mechanism 3 is attached to a tip end of the bracket arm 91.
Is provided. A rivet driving mechanism 4 is provided above the washer holding mechanism 3.

The riveting mechanism 4 has the same structure as the riveting mechanism 4e of the conventional riveting apparatus described with reference to FIGS.
And a stem 41 for pushing down the rivet 1 downward. The plurality of rivets 1 stocked in the stock portion 42 are supplied into the pair of chucks 40, 40 one by one through the guide groove 43 at a predetermined timing. The rivet 1 and the washer 2 used in this embodiment are the same as those shown in FIGS.
7 has the same configuration as the rivet and washer described above.

The basic structure of the washer holding mechanism 3 is the same as that of the washer holding mechanism 3e of the riveting apparatus described as a conventional example, and the pilot pin 31 can be moved up and down on the holder 30. The structure is supported by The raising and lowering operation of the pilot pin 31 is performed, for example, by the air pressure supplied into the holder 30 and the lowering operation is performed by the spring pressure of the spring housed in the holder 30. The pilot pin 31 is capable of protruding and retracting from inside the holder 30 to above. However, in this rivet setting device, the pilot pin 31 is always immersed in the holder 30 and is controlled so as to protrude above the holder 30 at a predetermined time described later.

The magazine type washer supply device A is disposed on one side of the washer holding mechanism 3. The magazine type washer supply device A includes a base member 5, a first
The reciprocating cylinder C1, the second reciprocating cylinder C2, the first washer supply jig 6A, the second washer supply jig 6B, and the magazine 7 are provided.

The base member 5 is a member used for mounting each part of the washer supply device A. This base member 5 is connected to a rod 99 of a first reciprocating cylinder C1 attached to the bracket arm 91,
By the operation of the first reciprocating cylinder C1, it is possible to move up and down in the vertical direction of the arrow N1. A guide hole 92 provided in a bracket arm 91 is provided on a lower surface of the base member 5.
The guide rods 50, 50 inserted into the base member 92 are connected to each other, and by these guiding actions, the base member 5 can be smoothly moved up and down.

The above-mentioned magazine 7 is used for accommodating a large number of washers 2 therein in a vertically stacked manner, and is provided inside a cylindrical tubular body 70 having an opening 71 at an upper end. , And a piston 74 are housed therein. An air pressure introduction port 73 for introducing an air pressure P supplied through an air hose 72 into the cylinder 70 is provided at a lower end of the cylinder 70. In the magazine 7, the air pressure P exerts a force to push the piston 74 upward, and the pushing force always acts on a large number of washers 2 housed in the cylindrical body 70. Has become.

As shown in FIG. 5, an attachment 75 is attached to the upper part of the cylindrical body 70 of the magazine 7, and the magazine 7 is fixed to the base member 5 by using the attachment 75. Installed. Therefore, when the base member 5 moves up and down, the magazine 7 moves up and down accordingly. As shown in FIG. 3, a concave portion 59 for fitting the magazine 7 is provided in a side surface portion of the base member 5. However, the magazine 7 is detachable from the base member 5. When the magazine 7 becomes empty, the magazine 7 is detached from the base member 5 so that a new washer can be loaded into the magazine 7. It has become. The air hose 72 is provided with a socket 72a detachable from an air pipe (not shown) for supplying a predetermined air pressure. When the magazine 7 is detached from the base member 5, the air hose 72 is also attached to the socket 72a. , And can be separated from a predetermined air pipe. Therefore, even after the magazine 7 is removed from the base member 5, the air pressure P does not continue to act in the cylinder 70, and when the washer is loaded into the cylinder 70, the piston 74 is arranged at the lowest position. Let it be.

The operation of loading a large number of washers 2 into the magazine 7 is convenient as follows.
That is, FIG. 6 is a perspective view showing a stock tool 8 for stocking a large number of washers 2. The stock tool 8 is a rod 8 on which a large number of washers 2 can be fitted.
The first stopper 81 is attached to one end of the “0”.
Further, the stock tool 8 is also provided with a second stopper 82 that is detachable from the other end of the rod 80. In the stock tool 8 having the above configuration, the first stopper 81 and the second stopper 82 can prevent the many washers 2 fitted on the rod 80 from coming off from the rod 80, and can prevent the large number of washers 2 from coming off. Can be stored in a line in a compact manner. When a large number of washers 2 were loaded into the magazine 7 using the stock tool 8, the rods 80 of the stock tool 8 were inserted into the magazine 7 and the large number of washers 2 were accommodated in the magazine 7. Thereafter, the rod 80 of the stock tool 8 may be pulled out of the magazine 7 (see FIG. 5). According to such an operation, a large number of washers 2 can be loaded into the magazine 7 at one time.
The loading efficiency is improved. Also, as shown in FIG. 6, when the washer 2 is fitted on the rod 80, if the recessed portion 21 of the washer 2 is set to face upward, the washer 2 is loaded into the magazine 7. At times, the concave portion 21 can be set downward. Therefore, when a large number of washers 2 are loaded in the magazine 7, it is possible to prevent the loading directions of the front and back surfaces of the washers 2 from being mistaken.

The first washer supply jig 6A is formed in a substantially flat plate shape having a predetermined shape. The first washer supply jig 6A is supported by the base member 5 so as to be able to reciprocate in a substantially horizontal direction indicated by arrows N2 and N3. As shown in FIG. 3, the first washer supply jig 6 </ b> A has a slide hole 61 having a substantially rectangular shape in a plan view that fits into a fixed block 51 fixedly attached to the base member 5. The slide hole 61 is formed.
The first washer supply jig 6A reciprocates in the directions of the arrows N2 and N3 by the inner wall surfaces 61a and 61a along the longitudinal direction of the fixed block 51 slidingly guided by the side wall surfaces 51a and 51a of the fixed block 51. It is possible. As is clearly shown in FIG. 1, a projecting piece 60 provided at the rear end of the first washer supply jig 6A has a second reciprocating cylinder C
The second washer 98 is connected to the first washer supply jig 6A by the operation of the second reciprocating cylinder C2.
Reciprocates in a substantially horizontal direction. The first
The reciprocating direction of the washer supply jig 6 </ b> A is a direction from the opening 71 of the magazine 7 toward the holder 30 of the washer holding mechanism 3.

At the tip of the first washer supply jig 6A, a notch 97a is formed.
When the washer supply jig 6A is most retracted in the direction of the arrow N3 (in the state shown in FIGS. 1 to 3), the notch 97a is positioned above the opening 71 of the magazine 7. . The opening width of the cut recess 97 a is smaller than the outer diameter of the washer 2. Therefore, as is best seen in FIG. 2, the uppermost washer 2a of the multiple washers 2 housed in the magazine 7 and pushed upward by the piston 74 is:
Cut recess 97a of the first washer supply jig 6A
Abuts on the lower surface area 68 of the peripheral edge of. The lower surface region 68 is a portion corresponding to an example of the first stopper surface according to the present invention, and is a downward horizontal surface. The first stopper surface 68 (lower surface region 68) and the magazine 7
Is set slightly larger than the thickness t of one washer 2 in the vertical direction. Therefore, the uppermost washer 2a is
Although the entirety protrudes above the opening 71 of the second layer, a part of the second-layer washer 2b located thereunder is still stored in the magazine 7.

As shown in FIG. 3, a pair of clamp pieces for clamping the outer peripheral surface of the uppermost washer 2a from both sides thereof are provided on the lower surface of the tip region of the first washer supply jig 6A. 64a and 64b are attached. The pair of clamp pieces 64a and 64b are
The pair of clamp pieces 64 are rotatable in the horizontal direction about the center of the pair of clamp pieces 64 by the action of a spring force F of a first spring S1 provided behind the shafts 66, 66.
a and a pair of clamp surface portions 65 located at the distal end portions of 64b.
a and 65b operate so as to sandwich the outer peripheral surface of the washer 2a. The pair of clamp surfaces 65
a and 65b correspond to an example of the contact surface portion in the present invention. On both sides of the rear ends of the pair of clamp pieces 64a, 64b, the rear ends of the pair of clamp pieces 64a, 64b are prevented from opening beyond a predetermined dimension by the spring force F of the first spring S1. Stopper pins 96, 96 for preventing the distance between them from becoming smaller than a predetermined dimension.
Is provided.

Of the pair of clamp pieces 64a and 64b, a lever 67 is provided at the rear end of one clamp piece 64b.
Are connected. As shown in FIG. 3, when the first washer supply jig 6A is most retracted in the direction of arrow N3 as shown in FIG.
1b, and is provided so as to be pushed in the direction of arrow N4. Therefore, in this state, the clamp surface portion 65b of one clamp piece 64b shifts in the direction of arrow N5, and a pair of clamp surface portions 64a,
64b will open. Therefore, in such a state, the uppermost washer 2a can be appropriately interposed between the pair of clamp surface portions 64a and 64b. On the other hand, as shown in FIG.
When the washer supply jig 6A moves forward in the direction of the arrow N2, the lever 67 and the tapered surface 5 of the fixed block 51 are moved forward.
When the contact with the lever 1b is released, the lever 67 is displaced in the direction of arrow N6 by the spring force F of the spring S1. Therefore, in this case, one clamp surface portion 65b moves in the direction of arrow N7 and approaches the other clamp surface portion 65a, and the outer peripheral surface of the washer 2a is reliably sandwiched between the pair of clamp surface portions 65a and 65b. You can do it.

As in the present embodiment, if only one clamp piece 64a of the pair of clamp pieces 64a and 64b is operated and the other clamp piece 64b is fixed, this fixed side The washer 2a can be sandwiched with reference to the clamp piece 64b of
The positioning accuracy of the washer 2a when the washer 2a is clamped can be improved. Also, the clamp piece 64
The operation mechanism of a and 64b can be simplified. However, the present invention is not limited to this, and the two clamp pieces 6
4a and 64b may be configured to open and close together.

The vertical height of the clamp surfaces 65a, 65b, that is, the pair of clamp pieces 64a, 64 in FIG.
4b is the thickness t of one washer 2
(In FIG. 2, only one clamp piece 64a is shown, which is the same in FIGS. 9 and 10 described later.) The upper surfaces of the pair of clamp pieces 64a and 64b are substantially flush with the first stopper surface 68 of the first washer supply jig 6A. Therefore, the pair of clamp pieces 64a, 64b
Will accurately pinch only the washer 2a of the uppermost layer, and will not pinch the outer periphery of the washer 2b of the second layer located below it. The lower surfaces 69 of the pair of clamp pieces 64a and 64b correspond to an example of a second stopper surface according to the present invention, and have a downward horizontal surface.

The second washer supply jig 6B, like the first washer supply jig 6A, is formed in a substantially flat plate shape having a predetermined shape, and extends and retracts in a substantially horizontal direction indicated by arrows N2 and N3. It is movably disposed below the first washer supply jig 6A and is supported by the base member 5. As shown in FIG. 1, the rear end of the second washer supply jig 6B is connected to the projecting piece 60 of the first washer supply jig 6A via the second spring S2. Therefore, when the first washer supply jig 6A moves in the horizontal direction, the second washer supply jig 6A
B can also move back and forth in a substantially horizontal direction within a certain range accordingly. The upper surface of the tip of the second washer supply jig 6B is set to be substantially flush with the upper end surface of the magazine 7, as shown in FIG.

As shown in FIG. 3, the first washer supply jig 6B is connected to the second washer supply jig 6B.
Elongated fixed block 6 protruding from the lower surface of A
An elongated slide hole 62 that fits with the slide hole 3 is provided. When the first washer supply jig 6A is retracted in the direction of arrow N3, an appropriate gap Lc is formed between the front end of the slide hole 62 and the front end of the fixed block 63. In a range in which the gap Lc is formed and the fixed block 63 slides relative to the slide hole 62, the second washer supply jig 6B
Does not perform the forward movement associated with the first washer supply jig 6A. On the other hand, as shown in FIG. 4, the second washer feed jig 6B is
When the front end of the fixed block 63 is positioned at the front end of the slide hole 62 in the two directions, the second washer supply jig 6B is pushed forward by the fixed block 63 thereafter. . The second washer supply jig 6B is appropriately provided with long holes 95a and 95b for allowing the forward movement thereof (see FIG. 1). Regarding the retreat operation of the second washer supply jig 6B,
This can be performed by the contact between the rear end of the fixed block 63 and the rear end of the slide hole 62. The operation is performed when the first washer supply jig 6A is retracted. This can also be performed by pulling the second washer supply jig 6B in the same direction via the spring S2. The notch recess 9 of the first washer supply jig 6A is provided at the tip of the second washer supply jig 6B.
A notch concave portion 97b having the same shape and size as that of FIG. 7a is provided.

Next, the operation and operation of the riveting apparatus having the above configuration will be described.

First, as shown in FIG. 1, when the first washer supply jig 6A is retracted, as described above, the clamp surface portion 6 of the pair of clamp pieces 64a, 64b.
5a and 65b are in a state where they are spread each other. Therefore, the washer 2a of the uppermost layer can be appropriately arranged between the clamp surface portions 65a and 65b. In such a state, in order to start the riveting work, the first reciprocating cylinder C1 is operated as shown in FIG. 7 in a state where the pilot pin 31 of the washer holding mechanism 3 is immersed inside the holder 30. Then, the entire washer supply device A is raised in the direction of arrow N8. In this case, the washer 2a is arranged at a position higher than the upper part of the holder 30.

Next, as shown in FIG. 8, the second reciprocating cylinder C2 is operated to advance the first washer supply jig 6A and the second washer supply jig 6B in the direction of arrow N2. In this case, the second washer supply jig 6B starts the forward operation after being delayed from the forward operation of the first washer supply jig 6A.
At the start of the forward movement of A, as shown in FIG. 9, the outer peripheral surface of the uppermost washer 2a is
4b pushes forward. As described above, the thickness Lb of the pair of clamp pieces 64a, 64b
Is smaller than the thickness t of the washer 2 so that only the washer 2a of the uppermost layer can be properly pushed and the washer 2b of the second layer below the washer 2b is not pushed unjustly forward. Absent. Next, the first washer supply jig 6A
When the is advanced by a certain dimension, the clamp piece 64b performs a predetermined operation as described with reference to FIGS. 3 and 4, and the pair of clamp pieces 64a, 64b reliably sandwich the washer 2a of the uppermost layer. Therefore, even when the forward speed of the first washer supply jig 6A is relatively high, there is a problem that the washer 2a of the uppermost layer is flipped forward by the clamp pieces 64a and 64b and drops downward. Absent.

As shown in FIG. 10, when the uppermost washer 2a is transferred to the front of the magazine 7, a second stopper surface 69 is disposed above the opening 71 of the magazine 7. Therefore, the next washer 2b located in the second layer comes into contact with the second stopper surface 69, thereby preventing the washer 2b from being pushed upward above the second stopper surface 69. . Therefore,
Although air pressure is constantly applied to the inside of the magazine 7 to push up a large number of washers 2 upward, this does not cause a problem in the operation of pushing up the washers 2. When the washer 2a located on the uppermost layer is transported forward of the magazine 7, the washer 2a is moved to the first washer supply jig 6A and the second washer 2a.
And the washer supply jig 6B.
Therefore, it is possible to more reliably prevent the washer 2a from dropping below the first washer supply jig 6A. When the first washer supply jig 6A is further advanced than the state shown in FIG. 10 and the washer 2a is positioned above the cut recess 97b of the second washer supply jig 6B, thereafter, the second washer supply jig 6A is provided. The jig 6B is pushed by the fixed block 63 and moves forward with the first washer supply jig. Therefore, it is possible to transfer and supply the washer 2 above the holder 30 in a state where the washer 2 is held between the two cut recesses 97a and 97b.

After transferring and supplying the washer 2 above the holder 30, as shown in FIG. 11, the pilot pin 31 is raised, and the pilot pin 31 is inserted into the hole 20 of the washer 2a. Next, after the raising operation of the pilot pin 31 is completed, as shown in FIG. 12, the first washer supply jig 6A and the second washer supply jig 6B are retracted in the direction of arrow N3, and then, as shown in FIG. Lower to the indicated initial height. When retracting the first washer supply jig 6A and the second washer supply jig 6B, the pilot pin 31 is inserted into the hole 20 of the washer 2a, and the horizontal positioning of the washer 2 is ensured. By retreating the two jigs 6A and 6B, the washer 2a can be appropriately separated from the jigs 6A and 6B. Also,
Washer 2a detached from the two jigs 6A and 6B
After that, falls naturally along the pilot pin 31, and is set on the upper surface of the holder 30.

After the setting of the washer 2a is completed, as shown in FIG. 13, the rivet driving mechanism is operated to drive the rivet 1 into the rivet-fastened objects m1 and m2 and to perform the caulking operation. .
These operations themselves are performed in the same steps as in the related art. Specifically, those operations are performed by a pair of chucks 40 and 40.
Is opened while descending, and the stem 41 presses the head of the rivet 1 downward. When the riveting objects m1 and m2 are relatively soft, such as corrugated paper, for example, the riveting objects m1 and m2
There is no need to provide a rivet insertion hole in advance in 2,
The rivet 1 can be made to penetrate the riveted objects m1 and m2 only by the pushing force of the rivet. The caulking structure of the rivet 1 is the same as the structure described in FIG.

When the rivet setting operation is performed on the rivet setting objects m1 and m2, the entire washer supply device A is located at a height lower than the upper portion of the holder 30.
Therefore, as shown by the imaginary line in FIG. 13, even when the rivet setting operation is performed by moving the rivet setting object m1, m2 in the direction of the arrow N9, the rivet setting target m1, m2 and the washer supply device. An appropriate gap Ld is formed between the upper surface of A and the upper surface of A, and these are prevented from interfering with each other. As a result, it is convenient to perform riveting work on a wide area of the riveting objects m1 and m2. As shown in FIG. 13, when the first washer supply jig 6A and the second washer supply jig 6B are retracted, strictly speaking, after the transfer operation of the first washer 2a is started, Of the many washers 2 housed in the magazine 7, the washer 2b which is a new uppermost layer is sent out above the opening 71 of the magazine 7 and is disposed between the pair of clamp pieces 64a, 64b. You. Therefore, the washer 2b can be appropriately set on the holder 30 in the same procedure as the washer 2a, and a large number of washers 2 housed in the magazine 7 can be efficiently and quickly transferred to the holder 30.
It can be set up one by one sequentially.

FIG. 14 is an enlarged sectional view of a main part showing another example of a magazine type washer supply device for a riveting device according to the present invention. FIG. 15 is an enlarged sectional view of a main part showing the operation state.

In the configuration shown in FIGS. 14 and 15, a step 89 is provided in the lower surface area of the tip of the first washer supply jig 6A, so that the vertical surface of the step 89 is made to be the uppermost washer 2a. The contact surface portion 65c is capable of contacting the outer peripheral surface of the contact member 65. Further, the lower surface region located forward of the contact surface portion 65c is used as the first stopper surface 68.
a, and a lower surface area on the rear side of the contact surface portion 65c is a second stopper surface 69a. The height Le of the contact surface 65c is smaller than the vertical thickness t of each washer 2.

According to the above configuration, as shown in FIG.
First stopper surface 68a of first washer supply jig 6A
When the first washer supply jig 6A is advanced in the direction of arrow N2 in a state where the upper surface of the uppermost washer 2a is in contact with the uppermost washer 2a, as shown in FIG. The rear surface portion of the outer peripheral surface of the uppermost washer 2a can be appropriately pushed.
Can be separated from other washers and transferred forward. When the uppermost washer 2a is moved forward from the opening 71 of the magazine 7, the second stopper surface 69a is located above the opening 71, and the next uppermost washer 2a is located. The upper surface of 2b
The stopper surface 69a. Therefore, it is possible to appropriately transfer the washer 2a to a predetermined position while preventing the washer 2b from being sent upwardly beyond a required size.

As described above, in the present invention, the means for transferring and supplying the uppermost washer to the predetermined position by the washer supply jig does not necessarily need to clamp the uppermost washer, and is provided, for example, in the washer supply jig. The structure may be such that only the washer is pushed on the wall surface such as a stepped shape. Of course, in the present invention, a means for holding the washer may be provided by, for example, providing a washer supply jig with a vacuum suction nozzle so that a desired washer is reliably held on the washer supply jig by the vacuum suction action. Other means may be adopted.

The specific configuration of each part of the rivet setting device and the magazine type washer supply device for the rivet setting device according to the present invention is not limited to the above-described embodiment.
Various design changes are possible. For example, as a pushing means for pushing up a plurality of washers housed in a magazine upward, a plurality of washers are pushed up by using a spring pressure such as a coil spring without using air pressure. It may be. Further, the washer supply jig does not need to have a configuration in which a plurality of washer supply jig members (the first washer supply jig and the second washer supply jig) are combined as in the above-described embodiment. It may be constituted by one member. In addition, it goes without saying that the specific structures of the rivets and washers used in the present invention are not limited to those of the above-described embodiment.
Further, the type of the riveting object is not limited to corrugated paper.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an essential part showing an example of a riveting device provided with a magazine type washer supply device according to the present invention.

FIG. 2 is an enlarged sectional view of a main part of the magazine type washer supply device shown in FIG.

FIG. 3 is a plan view of the magazine type washer supply device shown in FIG.

FIG. 4 is a plan view showing a state in which the magazine type washer supply device shown in FIG. 1 is in operation.

FIG. 5 is an external perspective view showing a magazine used for the riveting apparatus shown in FIG. 1;

FIG. 6 is a perspective view showing an example of a stock tool for stocking a large number of washers.

FIG. 7 is a side sectional view of a relevant part showing a state in which the riveting device shown in FIG. 1 is in operation.

FIG. 8 is a side sectional view of a relevant part showing a state in the middle of operation of the riveting device shown in FIG. 1;

FIG. 9 is an enlarged side sectional view of a main part showing a state in the middle of operation of the riveting device shown in FIG. 1;

FIG. 10 is an enlarged side view of a relevant part showing an intermediate state of the operation of the riveting device shown in FIG. 1;

FIG. 11 is a side sectional view of a relevant part showing a state in which the riveting device shown in FIG. 1 is in operation.

FIG. 12 is a side sectional view showing a main part of the riveting device shown in FIG. 1 in the middle of operation.

13 is a side sectional view of a relevant part showing a riveting operation process of the riveting device shown in FIG. 1;

FIG. 14 is a main part enlarged sectional view showing another example of a magazine type washer supply device for a riveting device according to the present invention.

FIG. 15 is an enlarged sectional view of a main part showing an operation state of the magazine type washer supply device for the riveting device shown in FIG.

FIG. 16 is a cross-sectional view showing an example of a rivet and a washer used for riveting work.

FIG. 17 is a cross-sectional view showing an example of a riveted structure.

FIG. 18 is an explanatory view showing an example of a conventional riveting apparatus.

FIG. 19 is an explanatory diagram showing an operation state of the riveting device shown in FIG. 18;

[Explanation of symbols]

 A Magazine type washer supply device 1 Rivets 2 Washers 2a Uppermost washer 2b Second layer washer 3 Washer holding mechanism 4 Riveting mechanism 6A First washer supply jig 6B Second washer supply jig 7 Magazine 64a, 64b Clamp pieces 65a, 65b Clamp surface (contact surface) 65c Contact surface 68, 68a First stopper surface 69, 69a Second stopper surface 71 Opening (of magazine) m1, m2 Riveting object

Claims (6)

[Claims] 1. A washer holding mechanism configured to fit a washer for rivet swaging onto a pilot pin supported by a holder so as to be able to ascend and descend to position the washer on the holder, and the washer. A rivet is driven from above the desired rivet fastening object arranged above the holding mechanism so that the lower end of the rivet is swaged on the lower surface side of the washer held by the washer holding mechanism. A rivet setting mechanism for pressing and lowering the rivet, a riveting device having: The placed magazine and the uppermost washer among the plurality of washers housed in the magazine Push-up means for pushing up a washer in the magazine so that the washer is sent out from an opening provided at an upper end of the magazine, an upper position of the magazine, and an upper position of a holder of the washer holding mechanism. A jig capable of reciprocating between the above and a detachable holding jig capable of detachably holding the uppermost washer sent out above the opening of the magazine and transporting and supplying it to a position above the holder. A riveting device, characterized in that: 2. The washer supply jig according to claim 1, wherein the washer supply jig is positioned at a position farther from the washer holding mechanism so that the uppermost washer sent out above the opening of the magazine has a predetermined height or more. A first downwardly facing stopper surface abutting on the upper surface of the uppermost washer so as to prevent the uppermost washer, and an outer peripheral surface of the uppermost washer abutting on the first stopper surface can be abutted. And a vertical height of the contact surface,
The riveting device according to claim 1, wherein the size of the washer is smaller than a thickness of the washer in a vertical direction. 3. The washer supply jig according to claim 1, wherein the uppermost washer is moved in the direction of the washer holding mechanism, and the first stopper surface is moved forward from an opening of the magazine. A second downwardly directed stopper abutting on the upper surface of the washer so as to prevent the next uppermost washer housed in the magazine from rising above a predetermined height above the opening of the magazine. 3. The riveting device according to claim 2, wherein the device has a surface. 4. The riveting apparatus according to claim 1, wherein said washer supply jig is provided with a clamp means capable of clamping an outer peripheral surface of said uppermost washer from both sides thereof. . 5. The washer supply jig is provided so as to be able to move up and down so that the jig can be lowered to a position lower than the upper portion of the holder when the jig is retracted away from the washer holding mechanism. The riveting device according to any one of claims 1 to 4. 6. A magazine for accommodating a washer formed by stacking a plurality of washers up and down so as to be able to be accommodated therein, and the washer in the uppermost layer among the plurality of washers accommodated in the magazine is the above-mentioned washer. Push-up means for pushing up a washer in the magazine upward so as to be sent out from an opening provided at an upper end of the magazine; and reciprocating between an upper position of the magazine and a predetermined position on a side thereof. A washer supply jig that is movable and capable of detachably holding the uppermost washer sent out above the opening of the magazine and transporting and supplying the washer to the predetermined position. A magazine type washer supply device for a riveting device.