JPH0878887A - Parts mounting apparatus - Google Patents

Abstract

PURPOSE: To make a parts mounting apparatus adaptable even to smaller liquid crystal panels than conventional ones. CONSTITUTION: A suction plate 1 movable in one direction is disposed on a rotary table 7 movable in a direction X or Y and moved, utilizing the vertical motion of a cylinder 11 to which the plate 1 is fixed at a place separate from that of the table 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus for mounting components on a liquid crystal panel.

[0002]

2. Description of the Related Art FIG. 3 is a perspective view showing a structure of a conventional component mounting apparatus for mounting components on a liquid crystal panel, and FIG. 4 is a sectional view of a main portion of FIG. In FIG. 3, 1 is a suction plate for sucking, moving and rotating the liquid crystal panel 3 (see FIG. 4), 2 is a drive shaft for moving the suction plate 1 in a plane, and 5 is a liquid crystal panel. It is a supporting pressure stage. Further, in FIG. 4, 3 is a liquid crystal panel on the suction plate 1, 4 is a TAB (Tape Automated Bonding) mounted on an end portion of the liquid crystal panel 3, and 6 is a drive belt for rotating the liquid crystal panel 3. is there.

The operation of the component mounting apparatus configured as described above will be described below.

First, the liquid crystal panel 3 transferred from the outside is transferred onto the suction plate 1 and is suction-held therein. Then, the drive belt 6 connected to the motor is rotated to rotate the liquid crystal panel 3 at a predetermined angle. Then, the drive shaft 2 is operated, the liquid crystal panel 3 is moved in the direction of the arrow d, and the pressing stage 5 is positioned at a predetermined position.

[0005]

However, in the above-mentioned configuration, due to the size of the rotation drive unit including the suction plate 1, the center of the pressure stage 5 and the liquid crystal panel 3 as shown in FIG. Inevitably, the dimension A from B becomes large, and the minimum dimension B of the liquid crystal panel 3 is inevitably limited by the relationship of B> A.

In view of the above problems, it is an object of the present invention to make it possible to mount a component on the liquid crystal panel having a smaller minimum dimension B of the liquid crystal panel 3 even smaller.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems and to achieve the object, the present invention further comprises a rotary table movable in the X direction or the Y direction, which is further movable in one direction, and the rotation of the rotary table. A suction plate smaller than the table is provided, and the suction plate is driven by one cylinder fixedly installed at a position different from the rotary table.

[0008]

According to the present invention, conventionally, there is no restriction item that the center of the liquid crystal panel and the rotation center of the suction plate have to be substantially coincident with each other. That is, since the suction plate for sucking the liquid crystal panel can move on the rotary table, the rotation center and the liquid crystal panel center can be offset from each other.
It is possible to bring the liquid crystal panel closer to the pressure stage than the minimum distance between the rotary drive unit and the pressure stage, and it is possible to cope with a smaller liquid crystal panel.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The component mounting apparatus of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the structure of a component mounting apparatus according to an embodiment of the present invention, and FIG. 2 is a sectional view of the main part of FIG. 1 and 2, in FIG. 3 and FIG.
The same members as those described above are designated by the same reference numerals, and description thereof will be omitted.
In FIGS. 1 and 2, 7 is a rotary table movable in the XY directions, 8 is a rotary drive unit of the rotary table 7, 9 is a motor for rotating the rotary table 7, 10 is the suction plate 1 and the rotary table. A drive shaft for moving the table 7, 11 a cylinder for moving the suction plate 1 on the rotary table 7, 12 a plate attached to the tip of the cylinder 11, 13 holes formed in the plate 12, 14
Is a pin that fits into the hole 13 fixed to the suction plate 1, 15
Is a roller at the tip of the block which is attached to the suction plate 1 and swings, 16 is a compression spring for swinging the roller 15, 17 is a force in the moving direction to the roller 15,
It is a plate cam for surely bringing the suction plate 1 into contact with the stopper.

The operation of the component mounting apparatus configured as described above will be described below with reference to FIGS. 1 and 2.

First, the liquid crystal panel 3 transferred from the outside is transferred onto the suction plate 1 and is suction-held therein. At this time, the suction plate 1 is at the position D drawn by the alternate long and short dash line. After that, the drive shaft 10 is driven, and the pin 14 fixed to the suction plate 1 is connected to the cylinder 11 through the hole.
13 Move to the top. And activate cylinder 11,
The plate 12 is raised and the hole 13 and the pin 14 are fitted together.

In this state, the drive shaft 10 is driven again to move the rotary table 7 by a fixed amount. At this time, the rotary table 7 moves, but the suction plate 1 does not move because it is connected to the cylinder 11 through the pin 14.

As a result, the suction plate 1 moves on the rotary table 7 and moves from the position D indicated by the alternate long and short dash line in FIG. 1 to the position E drawn by the solid line. After that, the cylinder 11 is operated and the plate 12 is lowered to release the fitting between the hole 13 and the pin 14.

At this time, it is necessary to lock the suction plate 1 at the position where the rotary table 7 has moved. It is because the roller 15 at the tip of the swinging block attached to the suction plate 1 is attached to the rotary table 7 by the plate cam 17
Is pressed against the slope 17a by the force of the compression spring 16,
The repulsive force pushes the suction plate 1 against the stopper to lock it.

After that, the motor 9 is driven to rotate the rotary drive unit 8.
Through, the liquid crystal panel 3 is rotationally positioned at a predetermined angle. After that, the drive shaft 10 is driven, the liquid crystal panel 3 is moved in the direction of the arrow C, and the pressing stage 5 is positioned at a predetermined position.

As described above, according to this embodiment, the suction plate 1 which is movable in one direction and smaller than the rotary table 7 is provided on the rotary table 7 which is movable in the X direction or the Y direction. By driving this with one cylinder 11 fixedly installed at a place different from the rotary table 7, the center of the liquid crystal panel and the center of the rotary table can be offset, so that even a liquid crystal panel smaller than the conventional one can be supported. Wear.

[0018]

As described above, the component mounting apparatus of the present invention has a suction table that is movable in one direction and smaller than the rotary table on the rotary table that is movable in the XY direction or the Y direction. By having a plate and driving it with one cylinder fixedly installed in a place different from the rotary table, the center of the liquid crystal panel and the center of the rotary table can be offset, so that even a smaller liquid crystal panel than before can be used. Can respond.

[Brief description of drawings]

FIG. 1 is a perspective view showing the configuration of a component mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of FIG.

FIG. 3 is a perspective view showing a configuration of a conventional component mounting apparatus.

FIG. 4 is a sectional view of a main part of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Adsorption plate, 3 ... Liquid crystal panel, 5 ... Pressure stage, 6 ... Drive belt, 7 ... Rotation table, 8 ... Rotation drive part, 9 ... Motor, 10 ... Drive shaft, 11 ... Cylinder, 12 ... Plate, 13 … Hole, 14… Pin, 15…
Rollers, 16 ... compression springs, 17 ... plate cams.

 ─────────────────────────────────────────────────── ─── Continued front page (72) Kenichi Nishino Kenji Nishino 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A rotary table that is movable in the X direction or the Y direction has a suction plate that is further movable in one direction and is smaller than the rotary table, and the suction plate is different from the rotary table. A component mounting device characterized in that it is driven by one cylinder fixedly installed at a location. 2. The component according to claim 1, wherein the suction plate movable in one direction has a pin or a hole that can be fitted into a hole or a pin provided at the tip of the cylinder for driving. Mounting device. 3. The component mounting apparatus according to claim 1, wherein the suction plate movable in one direction has a lock mechanism capable of reliably holding the position after the movement.