JPH08227660A - Production device for explosion-proof cathode-ray tube - Google Patents

Abstract

PURPOSE: To improve the positional accuracy of a cathode-ray tube and a reinforcement band, as well as the accuracy of a Z-point size, and manufacture two or more types of products in parallel by actuating a holding block for mounting hardware along X-, Y- and Z-directions at the time of setting the block in place, depending on the size of a reinforcement band set, and driving the block to the position of the hardware. CONSTITUTION: When a large-sized reinforcement band comes in the condition where a mounting hardware holding block 20 is in such a state as suitable for a small-sized reinforcement band 15, the operation rod of a Z-axis direction drive cylinder 5 protrudes and the operation rods of X- and Y-axis direction drive cylinders 7 and 9 retract, thereby moving the block 20 toward an opposite direction. Then, a Z-table is positionally restricted and the upper surface of the block 20 is adjusted to be suitable for the large-sized reinforcement band. Also, X- and Y-tables 3 and 4 are positionally regulated, due to contact with stopper bolts 30 and 31, and a pin 21 is adjusted to be suitable for the mounting hole of reinforcement band mounting hardware. Thus, a single device can reinforce two or more types of products concurrently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an explosion-proof type cathode ray tube manufacturing apparatus for mounting a reinforcing band on a CRT by shrink fitting in a cathode ray tube manufacturing process.

[0002]

2. Description of the Prior Art There are various types of explosion-proof cathode ray tube manufacturing apparatuses, most of which are designed to heat and expand a reinforcing band.
It is a shrink-fitting type that is attached to the outer circumference of the face part of a cathode ray tube to cool and shrink and fix it. In such conventional explosion-proof cathode ray tube manufacturing equipment, the mounting bracket holding part that holds the mounting bracket attached to the reinforcing band is fixed for each type of cathode ray tube, and the mounting bracket holding part is replaced when changing the type. are doing. Further, in order to match the height direction (Z point dimension) of the reinforcing band and the mounting metal fitting from the reference point of the cathode ray tube, the panel height holding portion which receives the face surface of the cathode ray tube is adjusted. As an apparatus for manufacturing this type of explosion-proof cathode ray tube, for example, Japanese Patent Laid-Open No. 59-1
73935 and JP-A-60-182637.

[0003]

In the above-mentioned prior art, the number of the mounting bracket holding portions is limited to one, and the mounting bracket holding portions are replaced when other types are used, so that the productivity and operating rate are poor, and Two kinds of products cannot be produced simultaneously. Further, there is a problem that the panel, the reinforcing band, and the mounting bracket are displaced in the height direction, that is, the mounting positions of the panel and the reinforcing band are not stable.

An object of the present invention is to perform automatic switching for each product type, to enable simultaneous production of multiple product types in parallel, to improve productivity and operation rate, and to improve the positional accuracy of the reinforcing band. The object is to provide a pipe manufacturing apparatus.

[0005]

In order to achieve the above object, a pin to be inserted into a mounting hole of a mounting member of a reinforcing band, and a mounting member holding block provided with the pin and holding the mounting member are provided. In an apparatus for manufacturing an explosion-proof cathode ray tube in which the reinforcing band is attached to a cathode ray tube by shrink fitting, there is provided driving means for driving the mounting bracket holding block in the XYZ directions so as to fit the mounting bracket of the reinforcing band of each type. Is characterized by.

[0006]

[Function] The position of the reinforcing band of the small size is determined by setting the mounting bracket holding block in accordance with the position of the small size mounting bracket. When setting a large size reinforcing band, XY the mounting bracket holding block
Drive in the Z direction and move to the position of the reinforcing band mounting bracket. As a result, it is possible to improve the positional accuracy of the cathode ray tube and the reinforcing band and the dimensional accuracy of the Z point, and at the same time, it is possible to perform the production of two or more types in parallel.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. A Z table 2 is provided on the base plate 1 so as to be movable in the Z direction (vertical direction), and an X table 3 is placed on the Z table 2 so as to be slidable in the X direction.
Further, a Y table 4 is mounted on the X table 3 so as to be slidable in the Y direction. A Z-direction driving cylinder 5 for driving the Z-table 2 in the Z-direction is fixed to the lower surface of the base plate 1 via a bracket 6, and an operating rod of the Z-direction driving cylinder 5 is fixed to the Z-table 2. . An X-direction driving cylinder 7 that drives the X table 3 in the X direction is fixed on the Z table 2 via a bracket 8, and an operating rod of the X direction driving cylinder 7 is fixed to the X table 3. On the X table 3, a Y direction driving cylinder 9 for driving the Y table 4 in the Y direction is mounted on the bracket 10.
And the actuation rod of the Y-direction driving cylinder 9 is fixed to the Y table 4.

A mounting bracket holding block 20 is fixed on the Y table 4 so that its position can be adjusted. The mounting bracket holding block 20 is inserted into a mounting hole 16a of a mounting bracket 16 attached to a reinforcing band 15. The pin 21 is fixed. In addition, the Y table 4 has a support block 2
2 is fixed, and a mounting member pushing arm 23 is rotatably supported on the support block 22 via a support shaft 24. The mounting bracket pushing arm 23 is provided with a pin escape hole at a position corresponding to the pin 21.
Is pressed against the mounting bracket holding block 20. Further, the operating rod of the cylinder 25 for the mounting metal member pushing arm is attached to the mounting metal member pushing arm 23 by the support shaft 26.
The mounting metal member pushing arm cylinder 25 is rotatably supported by a bracket 27 via a support shaft 28, and the bracket 27 is fixed on the Y table 4.

An X-direction stopper bolt 30 for restricting the retracted position of the X table 3 is provided on the Z table 2, and a Y direction for restricting the retracted position of the Y table 4 is provided on the X table 3. A stopper bolt 31 for use is provided. Further, although not shown, Z is formed on the base plate 1.
A Z-direction stopper bolt that restricts the rising position of the table 2 is provided.

Therefore, first of all, the adjustment work of the present apparatus is performed prior to the operation. 1 and 2 show a case where the reinforcing band 15 having a small size is fitted. The mounting bracket holding block 20 is set in accordance with the position of the mounting bracket 16 of the small-sized reinforcing band 15 of the types to be produced. This work adjusts the mounting bracket holding block 20 with the operating rod of the Z-direction driving cylinder 5 retracted and with the operating rods of the X-direction driving cylinder 7 and the Y-direction driving cylinder 9 protruding. .

Next, the stopper bolts 30, Y for the X direction are set so that they are located at the mounting brackets of the reinforcing band of a size (product type) larger than the reinforcing band 15 adjusted as described above.
The stopper bolt 31 for the direction and the stopper bolt for the Z direction (not shown) are adjusted. In this work, the operation rod of the Z-direction driving cylinder 5 is projected, and the Z-direction stopper bolt that regulates the rising position of the Z table 2 is adjusted to attach a reinforcing band having a large upper surface of the mounting bracket holding block 20. Adjust so that it contacts the bottom surface of the metal fitting. In addition, the operating rods of the X-direction driving cylinder 7 and the Y-direction driving cylinder 9 are retracted so that the pin 21 fits into the mounting hole of the mounting bracket of the large-sized reinforcing band, and the X-direction stopper bolt 30 and the Y-direction stopper are provided. Bolt 31
To adjust.

The apparatus is used after the above adjustment is completed. Cylinder 25 for mounting bracket pushing arm
The operating rod is retracted, and the fitting pushing arm 23 is rotated upward. Therefore, the respective operating rods of the Z-direction driving cylinder 5, the X-direction driving cylinder 7, and the Y-direction driving cylinder 9 are operated so as to fit the mounting brackets of the reinforcing band of the type to be produced. That is, when the small-sized reinforcing band 15 flows, the operating rod of the Z-direction driving cylinder 5 retracts, and the operating rods of the X-direction driving cylinder 7 and the Y-direction driving cylinder 9 project.

When the operating rod of the Z-direction driving cylinder 5 is retracted, the Z-table 2 is lowered as shown in FIGS. Since the X table 3 and the Y table 4 are mounted on the Z table 2, the Y table 4 also descends, and the upper surface of the mounting bracket holding block 20 has a height suitable for the lower surface of the mounting bracket 16 of the small-sized reinforcing band 15. Will be adjusted. When the actuating rod of the X-direction drive cylinder 7 projects, the X table 3, the Y table 4 and the mounting bracket holding block 20 move in the X direction, and the pin 21 mounts the mounting hole 16 of the mounting bracket 16 of the reinforcing band 15 of a small size.
The X direction with respect to a is positioned. When the operating rod of the Y-direction driving cylinder 9 projects, the Y-table 4 and the mounting bracket holding block 20 move in the Y-direction, and the pin 21
Is positioned in the Y direction with respect to the mounting hole 16a of the mounting bracket 16.

In this state, a small-sized reinforcing band 15
Is supplied, the mounting bracket 16 is placed on the mounting bracket holding block 20, and the pin 21 is inserted into the mounting hole 16 a of the mounting bracket 16. Then, the operating rod of the attachment fitting pushing arm cylinder 25 projects. As a result, the attachment fitting pushing arm 23 rotates about the support shaft 24, and the attachment fitting pushing arm 23 pushes the attachment fitting 16 against the attachment fitting holding block 20. In this state, as in the conventional case, a reinforcing band 1 for a cathode ray tube (not shown)
The shrink fitting work of 5 is performed.

Next, a case will be described in which a mounting band holding block 20 fits in a reinforcing band 15 of a small size and a reinforcing band of a larger size comes into play.
In this case, contrary to the above, the operating rod of the Z-direction drive cylinder 5 projects, the operating rods of the X-direction drive cylinder 7 and the Y-direction drive cylinder 9 retract, and the mounting bracket holding block 20 moves in the opposite direction. Moving. Then, the Z table 2 is brought into contact with a Z-direction stopper bolt (not shown) to regulate the rising position, and the upper surface of the mounting bracket holding block 20 is adjusted to a height that fits a large-sized reinforcing band. Further, the X table 3 and the Y table 4 are brought into contact with the X direction stopper bolt 30 and the Y direction stopper bolt 31 to restrict the positions in the XY directions so that the pin 21 fits into the mounting hole of the mounting bracket of the reinforcing band. Adjusted to.

In this way, it is possible to perform the reinforcement work for two types of products with one device. Further, the position of the mounting metal fitting 16 can be automatically switched to a high accuracy, and the productivity and the operation rate of the apparatus can be improved. Further, by adjusting the Z direction, it is possible to prevent the positional deviation of the cathode ray tube and the reinforcing band 15 in the height direction.

In the above embodiment, the mounting bracket holding block 20 is driven in the X, Y and Z directions by a cylinder, and two types are switched. However, by using a cylinder with position control as the cylinder. It is possible to switch between two or more types. By using another drive source such as a motor instead of the cylinder,
Needless to say, it is possible to switch over more than one product type. When the position-controlled drive source is used as described above, the position of the mounting bracket holding block 20 can be arbitrarily controlled.
The direction stopper bolt, the X direction stopper bolt 30, and the Y direction stopper bolt 31 are not particularly necessary.

[0018]

According to the present invention, since the mounting bracket holding block has the driving means for driving in the XYZ directions so as to fit the mounting bracket of the reinforcing band of each type, automatic switching can be performed for each type, and various types can be used. It is possible to improve the productivity and operating rate, and further improve the position accuracy of the reinforcing band.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of an apparatus for manufacturing an explosion-proof cathode ray tube according to the present invention.

FIG. 2 is a front view of FIG.

[Explanation of symbols]

 2 Z table 3 X table 4 Y table 5 Z direction drive cylinder 7 X direction drive cylinder 9 Y direction drive cylinder 15 Reinforcing band 16 Mounting bracket 16a Mounting hole 20 Mounting bracket holding block 21 Pin 23 Mounting bracket push arm 25 Mounting Cylinder for metal fitting arm

Claims (3)

[Claims] 1. A reinforcing band having a pin to be inserted into a mounting hole of a mounting bracket and a mounting bracket holding block provided with the pin for holding the mounting bracket, wherein the reinforcing band is mounted on a CRT by shrink fitting. An apparatus for manufacturing an explosion-proof cathode-ray tube, comprising: a drive means for driving the mounting-fitting-holding block in the XYZ directions so as to fit the mounting fittings for the reinforcing band of each type. 2. The driving means comprises an XYZ table to which the mounting bracket holding block is attached and which is movable in the XYZ directions, and a driving source which drives the XYZ table in the XYZ directions. An apparatus for manufacturing an explosion-proof cathode ray tube as described. 3. The apparatus for manufacturing an explosion-proof cathode ray tube according to claim 2, wherein the drive source is a cylinder or a motor.