JPH04275833A - Parts pressure fitting device - Google Patents

Abstract

PURPOSE:To lessen strokes of a pressure fit cylinder and constructing the whole device in a small size by narrowing the spacing between the pressure fit cylinder and an intermediate plate. CONSTITUTION:An outward retreatable slide plate 34 is installed between an intermediate plate 12 fitted with a conveyor 15 and a pressure fit cylinder 14, which is to put parts 45 by pressure in a work, in such a way as movable in the horizontal direction. This slide plate 34 is equipped with a through hole 41 to be penetrated by a pressure fit punch 31 of the pressure fit cylinder 14. A pawl 46 for placing the parts 45 is swingably installed at the periphery of this through hole 41 in the slide plate 34. Accordingly the spacing between the pressure fit cylinder 14 and intermediate plate 12 can be suppressed to a space required to admit intrusion of the slide plate 34, and the pressure fit cylinder 14 is made small and the whole device is made small-sized.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parts press-fitting device for press-fitting parts such as bushings into a workpiece such as a cylinder case.

0002

2. Description of the Related Art A conventional parts press-fitting device will be explained with reference to FIGS. 5 and 6.

The parts press-fitting device shown in FIG. We are prepared. Further, the lower plate 11 is arranged on the floor 28, and the pillars 27 are vertically installed on the lower plate 11.
The intermediate plate 12 and the top plate 13 are held by. Furthermore, a positioning jig 16 for positioning the pallet is provided on the intermediate plate 12.

Next, the operation of the parts press-fitting device shown in FIG. 5 will be explained. The robot hand 24 holding the part moves along the conveyance line 25 and inserts the part into the press-fitting punch 31 mounted on the rod 30 of the press-fitting cylinder 14. Thereafter, the robot hand 24 retreats outward, and the rod 30 of the press-fit cylinder 14 rises. At the same time, the workpiece 21 is pressed down from above by the backup cylinder 17, and the parts inserted on the press-fitting punch 31 are press-fitted into the workpiece 21 as the rod 30 rises.

In the parts press-fitting device shown in FIG. 5, since the robot hand 24 enters between the press-fit cylinder 14 and the intermediate plate 12, it is necessary to increase the distance between the press-fit cylinder 14 and the intermediate plate 12. For this reason, the press-fit cylinder 14 may be arranged considerably below, and in this case, it is necessary to form a pit 29 in the floor 28 to accommodate the press-fit cylinder 14.

On the other hand, in the conventional parts press-fitting device shown in FIG. 6, a press-fitting cylinder 14 is slidably provided on a slide unit 32 instead of being provided on the hand robot 24 and the conveyance line 25. This is similar to the parts press-fitting device shown in No. 5.

In the parts press-fitting device shown in FIG. 6, a press-fit cylinder 14 having a rod 30 slides to the right, and parts are supplied to a press-fit punch 31 attached to the tip of the rod 30 of this press-fit cylinder 14 and inserted. Ru. Subsequently, the press-fit cylinder 14 slides to the left, and then the rod 30 of the press-fit cylinder 14 rises to press-fit the part into the workpiece.

In the parts press-fitting device shown in FIG. 6, a large-sized slide unit 32 is required to slide the press-fit cylinder 14. In addition, press-fit cylinder 1
4, the piping 33 of the press-fit cylinder 14
As such, a flexible one is required.

[0009]

[Problems to be Solved by the Invention] As mentioned above, in the case of the parts press-fitting device having the robot hand 24 shown in FIG. 5, it is necessary to increase the distance between the press-fitting cylinder 14 and the intermediate plate 12, It is necessary to form a pit 29 in the floor 28 to accommodate the cylinder 14. On the other hand, as shown in FIG. 6, in the case of a parts press-fitting device in which the press-fitting cylinder 14 slides on a slide unit 32, a large-sized slide unit 32 is required.

The present invention has been made in consideration of these points, and there is no need to increase the distance between the press-fit cylinder and the intermediate plate, and therefore there is no need to provide a pit, and it is also possible to use a large slide unit, etc. The purpose of the present invention is to provide a parts press-fitting device that is compact as a whole and that does not require

[0011]

[Means for Solving the Problems] The present invention includes a press-fit cylinder arranged on a lower plate, a backup cylinder attached to a top plate, and a press-fit cylinder arranged on an intermediate plate for transporting a pallet on which a workpiece is mounted. In the parts press-fitting device, the part is press-fitted into the workpiece by a press-fitting punch provided at the tip of a rod of a press-fitting cylinder while holding the workpiece by a backup punch of the backup cylinder, the intermediate plate and the press-fitting A slide plate that can be retracted outward is disposed horizontally movably between the cylinder, a through hole is provided in the slide plate through which the press-fit punch of the press-fit cylinder passes, and the periphery of the through-hole of the slide plate is provided with a through-hole through which the press-fit punch of the press-fit cylinder passes. This is a parts press-fitting device characterized in that the parts can be placed thereon.

0012

[Operation] Place the parts on the through hole of the slide plate with the slide plate retracted to the outside, then move the slide plate horizontally to above the press-fit cylinder and raise the rod of the press-fit cylinder. Then, the rod and the press-fitting punch are passed through the through hole to lift the part, and the part is press-fitted into the workpiece by the press-fitting punch of the press-fitting cylinder while pressing the workpiece from above with the backup punch of the backup cylinder.

[0013]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 4 are diagrams showing an embodiment of a parts press-fitting device according to the present invention. In addition. Components that are the same as those in the prior art are given the same reference numerals, and detailed explanations will be omitted.

In FIG. 1, the parts press-fitting device 10 is placed on a floor 28, and includes a press-fitting cylinder 14 disposed on the lower plate 11, a backup cylinder 17 attached to the top plate 13, and an intermediate plate. 12 and a conveyor 15 disposed in the conveyor 12. Further, a support 27 is vertically installed on the lower plate 11, and the support 27 supports the intermediate plate 12 and the top plate 1.
3 is retained. Further, a positioning jig 16 for positioning the pallet is provided on the intermediate plate 12.

The press-fit cylinder 14 has a rod 30, as shown in FIG. 4, and a press-fit punch 31 having a guide pin 31a is attached to the tip of the rod 30.

On the other hand, a backup punch 35 is attached to the lower part of the backup cylinder 17. and backup punch 35 of backup cylinder 17
While holding down the work 21 from above, the rod 30 of the press-fitting cylinder 14 is raised, and the part 45 (FIG. 3) is press-fitted into the work 21 by the press-fitting punch 31. Note that the work 21 is mounted on a pallet 20 that is transported by a transport conveyor 15.

Further, as shown in FIGS. 1 and 2, a slide plate 34 that can be retracted outward is provided between the press-fit cylinder 14 and the intermediate plate 12 so as to be movable in the horizontal direction. That is, the slide plate 34 is adapted to slide along slide units 42 provided on both sides of the slide plate 34, and the slide plate 34 is provided with a plurality of, for example, three, through holes 41. . When the slide plate 34 is placed at a predetermined position between the press-fit cylinder 14 and the intermediate plate 12, the rod 30 of the press-fit cylinder 14 and the press-fit punch 31 pass through the through-hole 41.

Furthermore, as shown in FIG. 3, the slide plate 34
A plurality of, for example, three, claws 46 are provided on the periphery of the through hole 41.
is attached to be able to swing freely around a swing shaft 46a. This claw 46 supports the part 45 by an upper claw portion 46b, and is swung in the direction of arrow L1 in FIG. It is said that Further, the lower part of the claw 46 is moved by an arrow L2 in FIG. 3 by a leaf spring 47.
When the press-fitting punch 31 escapes downward due to the bias in the direction,
The claw 46 is returned to its original position as shown in FIG.

Further, as shown in FIG. 2, on the right side of the slide unit 42 that slidably holds the slide plate 34, there is a
A parts temporary storage section 40, a parts inspection section 39, and a parts supply section 38 are arranged in this order. The parts supply section 38 supplies the parts 45 to the parts inspection section 39 or the parts temporary storage section 40, and the parts 45 inspected by the parts inspection section 39 are further supplied to the parts temporary storage section 40. There is. Further, an XY robot 37 is disposed on the side of the parts temporary storage section 40 to grasp the parts 45 temporarily placed on the parts temporary storage section 40 and transfer them to a predetermined through hole 41 of the slide plate 34. There is.

Next, the operation of this embodiment having such a configuration will be explained.

First, the parts 45 are loaded into the parts supply section 38, and the parts 45 are fed into the parts supply section 38 in the upper part of FIG.
5 is supplied to the parts inspection section 39, and parts 45 are supplied to the parts temporary storage section 40 by the lower parts supply section 38. In the parts inspection section 39, the parts 45 are subjected to inspection such as direction determination, and further supplied to the parts temporary storage section 40. Parts 4 temporarily placed in parts temporary storage section 40
5 is further transferred by the X-Y robot 37 to a predetermined through hole 41 of the slide plate 34 located outside the press-fit cylinder 14 (the position shown in FIG. 2), and a claw 46 attached to the peripheral edge of the through hole 41 is moved. is placed on the claw portion 46b of.

Next, the slide plate 34 moves to the left in FIG. 2, reaches a predetermined position above the press-fit cylinder 14, and stops. Thereafter, the rod 30 of the press-fit cylinder 14 rises, and the press-fit punch 31 attached to the tip of the rod 30 passes through the through hole 41 of the slide plate 34. In this case, as shown in FIGS. 3 and 4, first the press-fit punch 31 engages the guide pin 31a with an engagement hole (not shown) formed on the lower surface of the part 45, and then the press-fit punch 31 further engages with the engagement hole (not shown) formed on the lower surface of the part 45. It ascends and enters the through hole 41 while swinging the claw 46 in the direction of arrow L1 in FIG. Subsequently, the press-fitting punch 31 and the rod 30 rise and completely pass through the through-hole 41, and the part 45 is lifted up to the workpiece 21 by the press-fitting punch 31. During this time, the workpiece 21 mounted on the pallet 20 is
It has already been transported by the transport conveyor 15 to the top of the press-fit cylinder 14 .

Next, the part 45 is press-fitted into the workpiece 21 by further raising the punch 31, and at the same time, the backup punch 35 is lowered by the backup cylinder 17, and the workpiece 21 is pressed from above by the backup punch 35. In this way, the press-fitting work of the part 45 is completed.

Next, the backup punch 35 is raised by the backup cylinder 17, and the press-fit punch 31 of the press-fit cylinder 14 is lowered. When the press-fitting punch 31 is lowered and pulled out from the through hole 41, the claw 46 is swung in the direction of arrow L2 in FIG. 3 by the leaf spring 47.
Return to the position.

As explained above, according to the present invention, the part 45 is placed on the through hole 41 of the slide plate 3 and transferred to above the press-fit cylinder 14, and then the press-fit punch 31 is raised by the press-fit cylinder 14. , this press-fit punch 31
Since the part 45 was press-fitted into the workpiece 21 by
The distance between the press-fit cylinder 14 and the intermediate plate 12 can be reduced to a space in which the slide plate 34 can fit. Therefore, the movement stroke of the rod 30 of the press-fit cylinder 14 can be kept small, and therefore the press-fit cylinder 14 and the entire apparatus can be made smaller. Further, as the press-fit cylinder 14 is made smaller, the buckling problem of the rod 30 of the press-fit cylinder 14 can be eliminated, and there is no need to dig a pit in the floor 28.

[0027]

[Effects of the Invention] As explained above, according to the present invention,
The distance between the press-fit cylinder and the intermediate plate can be reduced to a space in which the slide plate can fit. Therefore, the movement stroke of the press-fit cylinder rod can be kept small.
Therefore, it is possible to downsize the press-fit cylinder and the entire device.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of a parts press-fitting device according to the present invention.

FIG. 2 is a plan view of the parts press-fitting device shown in FIG. 1.

FIG. 3 is an enlarged side sectional view showing the through hole of the slide plate.

FIG. 4 is an enlarged side sectional view of the press-fit cylinder.

FIG. 5 is a side view showing a conventional parts press-fitting device.

FIG. 6 is a side view showing another conventional parts press-fitting device.

[Explanation of symbols]

10　Parts press-fitting device 11 Lower board 12 Intermediate plate 13 Top plate 14 Press-fit cylinder 15 Conveyor 17 Backup cylinder 20 Palette 21 Work 30 Rod 31 Press-fit punch 34 Slide plate 35 Backup punch 41 Through hole

Claims (2)

[Claims] Claim 1: A press-fit cylinder disposed on a lower plate, a backup cylinder attached to a top plate, and a conveyor disposed on an intermediate plate for conveying a pallet on which a workpiece is mounted, In a parts press-fitting device that presses the part into the workpiece using a press-fitting punch provided at the tip of a rod of a press-fitting cylinder while holding the workpiece using a backup punch of a backup cylinder,
A slide plate that can be retracted outward is horizontally movably disposed between the intermediate plate and the press-fit cylinder, a through hole is provided in the slide plate through which the press-fit punch of the press-fit cylinder passes, and the slide A parts press-fitting device characterized in that the part can be placed on the periphery of a through hole in a plate. 2. The parts press-fitting device according to claim 1, wherein a plurality of claws are swingably attached to the periphery of the through hole of the slide plate, and the parts are placed on the claws.