JPS6146218B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rivet crimping machine that facilitates the calling and crimping process.

When using a pedestal to set and swage rivets, depending on the shape of the part, a separate pedestal must be used each time.
It was necessary to use a pedestal consisting of a complicated mechanism as shown in Publication No. 17030 and Publication of Utility Model Publication No. 53-38938.

SUMMARY OF THE INVENTION An object of the present invention is to provide a rivet crimping machine that uses a simple single base and can easily perform rivet loading and crimping processes regardless of the shape of the member.

The present invention provides a rivet caulking machine equipped with a hydraulic cylinder containing a pressure rod and a pedestal fixed integrally with the cylinder and facing the pressure rod, in which a long groove is bored at one end of the pressure rod. A member having a plurality of through holes in different directions for pins that engage the pressing rod is engaged near the base of the other end, and an attachment that abuts and engages with the rivet head is inserted into the long groove of the member. It is characterized by being movably pivoted.

One embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a vertical cylinder having an oil passage hole 2 at the top, and a solenoid valve that passes through the oil passage hole 2 of a rotary joint 3 provided at the top of the cylinder 1. It is connected to the fuel tank via etc. Inside the vertical cylinder 1, a hollow piston 4 with a groove communicating with the oil hole 2 on its outer periphery and a bulged lower part is provided, and this piston 4 is constantly given a lifting force by a spring 5, and Inside the piston 4, a hollow pressing rod 6 whose lower part is sealed is further provided, and a pin 7 fixed in the piston 4 applies a lifting force via a spring 8 installed inside the piston 4, and the lifting force is applied to the piston 4. It is made weaker than the rising force of . Further, a communication part is provided in the upper part of the inside of the piston 4 to communicate with a groove communicating with the oil passage hole 2 on the outer periphery, and this communication part has a communication part that communicates with the oil passage hole 2 on the outer periphery.
The ball 11 is supported with a gap between the inner wall of the piston 4 and the ball 11 by a protrusion 9 fixed to the piston 4 and a spring 10 installed in the piston 4. It is as if it is blocked by close contact.

Furthermore, the lower part of the pressing rod 6 has a long groove 1 at one end.
A member 15 having a plurality of through holes 14 in different directions for pins 13 to be engaged with the pressing rod 6 is engaged near the base of the other end, and a rivet 1 is provided at the tip.
An attachment 18 having a recess 17 that engages with the head of the member 15 is pivotally supported in the long groove 12 of the member 15 by a pin 19, so that the attachment 18 can slide inside the long groove 12 along the pin 19. ing. The direction of the through holes 14 provided in the member 15 can be determined as appropriate, but it is generally sufficient to provide one in the same direction as the long groove 12 and the other in a direction perpendicular thereto, as shown in the illustrated example.

Further, the cylinder 1 and the pressing rod 6 are preferably arranged so that a screw 21 inside the cylinder 1 engages with a groove 20 provided in the pressing rod 6 to prevent rotation, and a handle 22 is provided at the lower part of the cylinder 1.
It is recommended to add . Further, one end of a C-shaped bent arm 23 is fixed to the lower part of the cylinder 1, and this bent arm 2
3 is attached with a switch 24 that operates a solenoid valve for supplying and discharging oil to the cylinder 1. Furthermore, the other end of the bent arm 23 has a call hole 25 and a flat part 26.
A pedestal 27 equipped with a pedestal 27 is fixed opposite to the pressing rod 6. In the figure, 28 is an angle material, and 29 is an iron plate that is caulked with the angle material 28.

Next, to explain the operation of the present invention, the material to be riveted, for example, the angle material 28 and the iron plate 29 are stacked together, the rivet 16 is inserted into a hole previously drilled in the angle material 28, and the rivet 16 is inserted into the recess 17 of the attachment 18. They are made to face each other, and oil is supplied into the cylinder 1 through the oil passage hole 2 by operating the switch 24. To supply oil to the oil passage hole 2, the pressure rod 6 is lowered against the rising force of the spring 8 through the gap between the ball 11 and the inner wall of the piston 4, and the attachment 18 is also lowered. It contacts the rivet 16. When the downward force of the pressing rod 6 reaches its maximum, the hydraulic pressure pushes down the piston 4, the gap between the ball 11 and the piston 4 is cut off, all the hydraulic pressure is applied to the piston 4, and the piston 4 descends. Furthermore, the downward force of the pressing rod 6 is applied, and the rivet 16 is moved to the pedestal 27.
The iron plate 29 is guided through the access hole 25 (FIG. 2a). Next, after removing the hydraulic pressure in the cylinder 1 and pulling up the pressure rod 6, the handle 2
When cylinder 1 is moved with 2 etc., the bent arm 23
At the same time, the pedestal 27 also moves, but the attachment 1
8 slides with the pin 19 in the long groove 12 of the member 15 and remains in that state, and as shown in FIG. The rivet 16 is caulked by the lowering of the rivet 6.

If it is difficult to move the cylinder 1 due to the shape of the material to be riveted, the pin 13 may be engaged with the pressing rod 6 after changing the direction of the long groove 12 of the extraction member 15. All you have to do is change the direction of movement.

As described above, according to the present invention, drilling and caulking with rivets can be efficiently performed without requiring any complicated mechanism, with extremely simple operation.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partial cross-sectional view of the whole, FIG. 2 is a partial explanatory view of FIG. 1, and FIG. 3 is an explanatory view showing a partially assembled state. It is. 1... Cylinder, 2... Oil hole, 4... Piston, 5... Spring, 6... Pressing rod, 8
... Spring, 9 ... Protrusion, 10 ... Spring, 11 ... Ball, 12 ... Long groove, 13 ... Pin, 14 ... Through hole, 15 ... Member, 16 ... Rivet, 17 ... Concave part , 18... Attachment,
19... Pin, 22... Handle, 23... Bent arm, 25... Call hole, 26... Flat part, 27...
...Pedestal, 28...Angle material, 29...Iron plate.

Claims (1)

[Scope of Claims] 1. A rivet caulking machine comprising a hydraulic cylinder with a built-in pressing rod and a pedestal fixed integrally with the cylinder and facing the pressing rod, in which an end of the pressing rod is provided with a long groove at one end. An attachment that engages a member that is bored and has a plurality of through holes in different directions near the base of the other end for pins that engage with the pressing rod, and further abuts and engages the rivet head in the long groove of the member. A rivet caulking machine that is pivoted so that it can move in a long groove. 2. The rivet caulking machine according to claim 1, wherein the plurality of through holes provided in the member are arranged in the same direction as the long groove and in a direction perpendicular thereto. 3. The rivet crimping machine according to claim 1 or 2, which is provided with a handle for moving the hydraulic cylinder.