JPH0753798Y2 - Riveting machine - Google Patents

Description

[Detailed description of the device]

[0001]

This invention relates to a riveting machine.

[0002]

2. Description of the Related Art A conventional riveting machine fixes a workpiece on a table by using a jig. Work rivets have previously been inserted into the defined positions of the workpiece. After that, while the drive spindle and the rivet head forming tool at the lower end thereof are lowered by the action of the cylinder, the forming shaft of the forming tool is pressed against the work rivet, and the rivet head is formed by swinging and swinging the forming shaft.

[0003]

When a frame body is formed by connecting at least three ends of frame members arranged on three sides and ends of corner members interposed between the ends of the frame members by work rivets, 1 of the framework which forms the above-mentioned frame directly under the tool
The work rivet at one corner is positioned, the rivet head is molded on the work rivet, and then the work rivet at the next corner is positioned immediately below the molding tool. There was a problem such as a decrease in the rate.

Therefore, an object of the present invention is to provide a riveting machine capable of simultaneously forming a rivet head on a work rivet at each corner.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention proposes a table for supporting a work piece into which a work rivet has been inserted, and both sides of the table in X-Y and Z directions. A left-side moving body and a right-side moving body, and a rear-side left-side moving body and a rear-side right-side moving body that are provided to move to the left and right behind the trailing edge of the table in the XY direction and the Z-direction, Spindles provided to face the left-hand moving body and the right-hand moving body and front surfaces of the rear-side left moving body and the rear-side right moving body respectively by motors so as to move up and down by an appropriate method, and the spindles of these spindles. A rivet head molding tool that holds a molding shaft provided at the lower end is adopted.

[0006]

[Function] The work rivet is inserted and fixed on the table by using a jig.

Next, the above-mentioned left-side moving body and right-side moving body are aligned so that the axis of the work rivet located at both corners of the front edge of the work piece and the axis of the spindle of the left-side moving body and the right-side moving body match. Positioning control (that is, by XY axis control), and the work rivet axis located at both corners of the trailing edge of the workpiece and the spindle axis of the rear left moving body and the rear right moving body. The rear left moving body and the rear right moving body are positioned and controlled so that

Thereafter, while lowering the spindle, the molding shaft is pressed against the upper end of the work rivet and the rivet head is molded by the swinging and swinging of the molding shaft.

The rivet head may also be formed on the work rivet in the middle of the edge of the workpiece.

Further, the left moving body, the right moving body, the rear left moving body, and the rear right moving body are moved and adjusted in the Z direction according to the height of the work rivet.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, on the outside of both sides of the supporting table 1 for the workpiece A into which the work rivet a has been inserted, a left-side moving body that moves in the XY plane and in the Z direction is provided. 2 and a right side moving body 3 are provided.

Further, to the left and right behind the rear edge of the table 1,
Rear left moving body 4 that moves in the XY plane and in the Z direction
And a rear right moving body 5 are provided.

As a method for transferring the left-side moving body 2, the right-side moving body 3, the rear-side left moving body 4, and the rear-side right moving body 5 in the X-axis direction, the Y-axis direction, and the Z-axis direction, FIG. 6, a horizontal first ball screw 8 which is supported on a seat 6 and is driven by reversible operation of a first motor 7, and a side of the table 1 on the seat 6 which is screwed into the first ball screw 8 The nut 10 fixed to the lower surface of the lower slide body 9 that slides in the direction toward and away from the edge is supported by the surface of the lower slide body 9 so as to intersect the first ball screw 8 at a right angle, and the second motor 11 A horizontal and horizontal second ball screw 12 driven by reversible operation, and an upper slide body 13 that is screwed into the second ball screw 12 and slides along the edge of the table 1 on the surface of the lower slide body 9.
The nut 14 fixed to the upper slide body 13 is supported on the surface of the upper slide body 13, and the vertical third ball screw 16 driven by the reversible operation of the third motor 15 is screwed into the third ball screw 16. It is composed of a nut 18 fixed to an elevating body 17 which slides vertically on the surface.

Further, the motor 1 is provided on the surface of each lifting body 17.
Spindle 2 rotated by 9 and moved up and down by an appropriate method
0, and a rivet head forming tool 22 for holding a forming shaft 21 is provided at the lower end of the spindle 20.

As shown in FIG. 7, the spindle 20 is lifted and lowered by supporting the cylinder 23 on the lift 17 and moving the cylinder 23 integrally with the piston shaft 24 by the action of the cylinder 23. A spindle 20 is pierced through and supported by the shaft.

With the above arrangement, the work A is supplied onto the table 1 and is fixed by using a jig.

As shown in FIG. 8, the workpiece A has a frame member 31 on three sides, a corner member 32 interposed between the ends of the frame member 31, and an end of the frame member 31 in parallel with each other. It is composed of an interposing frame member 31 and a work rivet a previously inserted into each connecting portion.

After that, the computer issues an operation command to the first motor 7 and the second motor 11 so that the axis of the predetermined work rivet a and the axis of the molding shaft 21 of the left-side moving body 2 and the right-side moving body 3 coincide with each other. Is given, the lower slide body 9 is moved in the left-right direction by the drive of the first ball screw 8 and the upper slide body 13 is moved in the front-rear direction by the drive of the second ball screw 12 (in the X-axis and Y-axis directions). Positioning control is performed.

Further, a predetermined workpiece rivet a first motor 7 and the second motor from the computer to the axis and the axis of the molding shaft 21 of the rear left moving body 4及beauty rear right moving body 5 matches the When an operation command is given to 11, the lower slide body 9 is moved in the front-rear direction by driving the first pole screw 8.
By driving the second ball screw 12, the upper slide body 13 is moved in the left-right direction (in the X-axis and Y-axis directions) to perform positioning control.

Then, while the spindle 20 is lowered together with the piston shaft 24 by the action of the cylinder 23, the molding shaft 21 is pressed against the upper end of the work rivet a, and the molding shaft is rotated by the spindle 20 and the molding tool 22. As shown in FIG. 9, the rivet head a ′ is molded by swinging and swinging 21.

When changing the position of the molding tool 22 according to the height (length) of the work rivet a, the third motor 15 is operated to drive the third ball screw 16 to move the elevating body 17 up and down.

In the figure, 25 is a lower slide body 9 and an upper slide body 1
3, a slide guide member of the lifting body 17, 26 is an expansion joint, and 27 is a balancing cylinder.

[0024]

As described above, according to the riveting machine according to the present invention, a single riveting machine can mold the rivet head on the work rivet at each corner of the framework, for example.

Therefore, the working efficiency can be remarkably improved.

Since the spindle can be moved together with the forming tool in the Z direction, the position of the forming tool can be changed according to the height of the work rivet.

[Brief description of drawings]

FIG. 1 is a plan view of a riveting machine according to the present invention.

FIG. 2 is a side view of the above.

FIG. 3 is an enlarged vertical side view of the left-side moving body.

FIG. 4 is a cutaway plan view of the same portion.

FIG. 5 is a partially cutaway front view of the rear left moving body.

FIG. 6 is a vertical sectional front view of the same.

FIG. 7 is an enlarged vertical sectional side view of a structure for driving and elevating a molding tool.

FIG. 8 is a perspective view of a workpiece.

FIG. 9 is an enlarged front view of a vertical section obtained by molding a rivet head.

[Explanation of symbols]

 A Workpiece a Work rivet a'Rivet head 1 Table 2 Left moving body 3 Right moving body 4 Rear left moving body 5 Rear right moving body 6 Seat 7 First motor 8 First ball screw 9 Lower slide 10 Nut 11 Second Motor 12 Second Ball Screw 13 Upper Sliding Body 14 Nut 15 Third Motor 16 Third Ball Screw 17 Elevating Body 18 Nut 19 Motor 20 Spindle 21 Molding Shaft 22 Molding Tool 23 Cylinder 24 Piston Shaft

Claims (1)

[Scope of utility model registration request] 1. A table for supporting a work piece into which a work rivet has been inserted, and a left-side moving body and a right-side moving body provided on both outer sides of the table so as to move in the XY direction and the Z direction, respectively. A rear left moving body and a rear right moving body which are provided on the left and right behind the rear edge of the table so as to move in the XY direction and the Z direction, and a facing surface and a rear side of the left moving body and the right moving body. From the spindles that are respectively rotated by motors on the front surfaces of the left moving body and the rear right moving body so as to ascend and descend by a suitable method, and the rivet head molding tool that holds the molding shaft provided at the lower end of each spindle. Riveting machine consisting of.