JPS5931172B2 - Color picture tube panel positioning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a panel positioning device for a color picture tube.

Generally, during the manufacturing process of a color picture tube, a panel is placed in a predetermined position, and the processing to the panel and the attachment and detachment of various parts are repeated.

However, when positioning the panel, it is usually not possible to stably and accurately position the panel at a predetermined position due to variations in the material of the panel and the manufacturing process.

The reference for this positioning is a panel bin installed on the inner surface of the panel used to attach the shadow mask, but due to variations in panel dimensions etc., accurate positioning is not possible, so the positioning work is done manually. The current situation is that there are cases of poor handling, extremely poor production efficiency, and a major obstacle to mechanization and labor-saving efforts.

The present invention has been made in view of the above circumstances, and provides a panel positioning device that can position a panel at an approximate position on an X-Y plane based on panel pins, and facilitate mechanization and labor saving. It is something.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the apparatus of the present invention will be explained below along with embodiments shown in the drawings.

FIG. 1 and the following illustrate one embodiment of the present invention. In this embodiment, the positioning device 1 is fixedly arranged on a device fixing part (not shown), and adjacent devices are arranged orthogonally to each other. It has three positioning units 2.

Since the positioning units 2 have exactly the same structure, the same parts are designated by the same reference numerals.

That is, the positioning unit 2 has a substrate 3 fixed to a device fixing part, and two elevating shafts 4 pass through the substrate 3 at regular intervals so as to be able to move up and down.

An air cylinder 5 is fixed to the base plate 3 between these two lifting shafts 4.

Further, a connecting plate 6 is provided to support the two lifting shafts 4.

The elevating shaft 4 passes through the base plate 3 and extends upward through a guide tube 1 fixed to the lower surface of the base plate 3, and an elevating plate 8 is fixed to the upper end of the elevating shaft 4. 5
is fixed to the tip of a sliding rod 9.

Therefore, when the air cylinder 5 is operated, the elevating plate 8 can be freely raised and lowered.

An air cylinder 11 is fixed on the lifting plate 8 in a horizontal state via a vertically installed bracket 10, and further inward from the bracket 10 is a pair of support columns 1.
2 are planted at regular intervals, and these pair of supports 12
There is a positioning lever 1 formed in an almost U-shape at the upper end.
3 is rotatably supported via a pin 14.

A substantially central portion of the U-shaped positioning lever 13 is rotatably supported on the tip of the sliding rod 15 of the air cylinder 11 via a pin 16, and is positioned when the air cylinder 11 is operated. The lever 13 is freely rotated via the pin 14.

As shown in FIG. 5, a tapered surface 13b is formed at the tip 13a of the bent portion at the lower end of the positioning lever 13, and the tapered surface 13b becomes thinner toward the inner side. An introduction port 13c that is open in the shape of a shape and a guide groove 13d that is continuous with the introduction port 13c are formed.

The width and shape of this guide groove 13d are approximately equal to the cross-sectional shape of a panel bin, which will be described later.

On the other hand, the reference numeral 17 indicates a mounting pad, which is made of an elastic material such as rubber, and is fixed on the device frame (not shown).

In this embodiment, a total of four pads are arranged, one at each position corresponding to the four corners of the panel.

Panels 18 are placed on these pads 11 in a roughly positioned state, and panel bins 19 are planted at predetermined positions on the inner surface of the side walls of these panels.

The axis of the cholera panel bin 19 and each positioning unit 2
is on the same straight line as the axis of

On the other hand, between the three positioning units 2 configured as described above and below the panel 18, an elevating frame 20 that is raised and lowered by an air cylinder or the like (not shown) is disposed. A panel bin receiver 21 is installed in the portion at a position corresponding to the positioning lever 13.

A V-shaped or U-shaped notch 21a for receiving the panel bin 19 is formed at the upper end of the panel bin receiver 21, as shown in FIG.

Next, the operation of this embodiment configured as above will be explained.

First, as shown in FIGS. 1 and 2, the panel 18 is roughly positioned and placed on the pad 17.

When it is confirmed that the panel 18 is placed, the air cylinder 11 is activated, and the positioning lever 13 is rotated about the bin 14 in a direction in which the bent portion 13a enters the inside of the panel 18.

When the positioning lever 13 is rotated 90 degrees in this way, the air cylinder 11 reaches its maximum stroke and is maintained in this state, and at the same time the air cylinder 5 is activated and the lifting plate 8
is raised, the bent portion 13a of the positioning lever 13 enters the inside of the panel 18, and the panel bin of the panel 18, which has been roughly positioned, enters the inlet 13c shown in FIG. Natte guide groove 13d
The panel 18 is forcibly guided inside as shown in FIG.

When the positioning of the panel 18 is completed in this manner, the air cylinder 5 is first lowered, the air cylinder 11 performs a backward movement, and the positioning lever 13 returns to its original state as shown in FIG.

When the positioning lever 13 returns to its original state, the elevating frame 20 is raised, and the panel bin receiver 21 is raised and receives the panel bin 19 by the notch 21a as shown in FIG.
As shown in FIG. 4, the sealing surface 18a of the panel 18 is positioned above the pad 17 by a certain distance.

In the manner described above, the panel 18 is correctly positioned on the XY plane, and the process proceeds to the first step.

In addition, in the above embodiment, the positioning unit 2 has three
Although the structure in which the panels are arranged is shown, the present invention is not limited to this, and depending on the shape, position, and accuracy of planting of the panel bin, it is possible to position the panel sufficiently with only two positioning units in the longitudinal direction of the panel. It will be understood that it is a thing.

Moreover, although the object to be positioned is illustrated as a panel, any object can be positioned in exactly the same way as long as it is a concave container with a reference pin corresponding to a panel bin planted therein.

As is clear from the above explanation, it is possible to forcibly position the panel placed on the panel in the XY plane based on the panel bin reference (two positioning units are provided, and the positioning lever attached to the panel is Since positioning is performed using the metal panel bin as a reference, it can be accurately positioned within the Can be positioned.

For this reason. Conventional manual work can be mechanized, the drawbacks of manual work are eliminated, and panel positioning can be automated on automated lines.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention, and FIGS. 1 and 2 are a partially cutaway plan view and a side view of the non-operating state, and FIGS. 3 and 4 are partially cutaway views for explaining the operation. 5 is a perspective view illustrating the shape of the tip of the positioning lever, FIG. 6 is a sectional view showing the positioning state of the panel pin, and FIG. 7 is a perspective view of the panel pin receiver. 1... Positioning device, 2... Positioning unit, 3... Board, 4... Lifting axis, s
, ii... Air cylinder, 6... Relay plate, 8... Lifting plate, 9, 15... Sliding rod, 10.12...・・・Bracket, 13...
...Positioning lever, 11...Bat, 1
8...Panel, 19...Panel bin,
20... Lifting frame, 21... Panel pin receiver.

Claims (1)

[Claims] 1. At least on both sides in the longitudinal direction of the panel placed at an approximate position, the panel bin has positioning levers arranged on the axis of the panel bin and rotated by a drive device to position the panel bin in the X and Y directions on a plane. a pair of positioning units, and a lifting frame that is arranged below the panel so as to be freely raised and lowered, and has a panel bin receiver planted in the side edge thereof for positioning the panel bin in the XY direction and two height directions on a plane. A panel positioning device for a color picture tube, characterized by comprising: