JPH09174343A - Parts manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a plurality of assembly parts by a common device by arranging a parts detector, welding unit, takeout unit in order around a turntable. SOLUTION: At a position C of a turntable 8 a parts detector 10 is disposed so that the mounting conditions of each of parts are detected thereby. AT a position E a laser welding unit 11 is disposed to weld two parts brought into close contact with each other. At a position G, a take-out device for taking out first assembly parts and second assembly parts from a head and a parts detector 12 are arranged, and the first and second assembly parts are taken out from the head and also whether any part remains on the head or not is detected by the detector 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an electrode for dynamic focusing, which is arranged adjacent to the fourth grid electrode or the fifth grid electrode of an electron gun for a cathode ray tube, a so-called "quadrupole" assembly. The present invention relates to a component manufacturing apparatus that manufactures components.

[0002]

2. Description of the Related Art In a color television receiver, in order to improve the resolution characteristic of the entire screen, that is, the so-called dynamic focus characteristic, a "quadrupole" is provided adjacent to the fourth grid electrode or the fifth grid electrode of the electron gun for a cathode ray tube. Electrodes are placed. This "quadrupole" is configured by arranging, for example, first to fourth four electrode elements so as to be adjacent to each other. The parts that compose these electrode elements include an astig plate, a grid disc top, and a grid.

Here, the first electrode element and the third electrode element forming the "quadrupole" will be described with reference to FIG. The first electrode element and the third electrode element have the same structure, and are configured by welding the grid and the astig plate. FIG. 2 (a)
As shown by, the grid 21 is a thin plate having a substantially elliptical shape as a whole, and has three through holes 21 a to 21 through which electron beams pass.
c is formed. As shown in FIG. 2 (b), the astig plate 22 is a thin plate having a trapezoidal shape as a whole. As shown in FIG. 2 (c), the astig plate 22 is welded to the upper and lower portions of the grid 21 to form a first plate. An electrode element or a third electrode element is configured.

Here, a conventional part manufacturing apparatus will be described with reference to FIG. 3 by taking the case of welding the grid 21 and the astigmatic plate 22 as an example. Reference numeral 31 is a parts supply unit for sending out the astig plate. Parts supply unit 31
Is a ball feeder 31a or a linear feeder 31
b, a vacuum chuck (not shown) and the like. The ball feeder 31a accommodates a large number of astig plates, and the astig plates are aligned and sent out to the linear feeder 31b. Then, the astig plates sent from the linear feeder 31b are sequentially attached to the heads 331 to 338 of the turntable 32 by a vacuum chuck as indicated by an arrow Y1. The turntable 32 has a structure that rotates in the direction of the arrow Y2, and at the position A, the astigmatic plate is attached to the head on the turntable 32 from the linear feeder 31b. A part detecting device 34 is provided at the position B, and it is detected whether or not the astigmatic plate is properly attached to the head. Further, at the position C, the grid is supplied from the parts supply unit 35.

The parts feeder 35 is a ball feeder 35.
a, a linear feeder 35b, a vacuum chuck (not shown), and the like. The grid is aligned and sent from the ball feeder 35a to the linear feeder 35b.
3, the linear feeder 35b is mounted on the head on the turntable 32, in this case, the head is combined with the astig plate. Further, a part detection device 36 is provided at the position D, and it is detected whether or not the grid is normally supplied to the head.

Further, a laser welding device 37 is provided at the position E, and the astigmatic plate and the grid are welded together by using laser light to form one assembly part. In addition,
The welded assembly of the astig plate and the grid moves to the unloading section at the position G through the idle portion at the position F. At position G, the vacuum chuck 38 removes the assembly from the head. Further, a remaining amount detecting device 39 is arranged at the position H, and it is detected whether or not there is any remaining assembly parts or parts on the head of the turntable 32.

Next, the second electrode element forming the "quadrupole" will be described with reference to FIG. The second electrode element is formed by welding a grid and a grid desktop. The grid has the same structure as the grid forming the first electrode element and the third electrode element, and as shown in FIG.
Reference numeral 1 is a thin plate with an almost elliptical shape through which the electron beam passes.
Individual through holes 41a to 41c are formed. Figure 4 (b)
As shown in, the grid disc top 42 is a thin plate having a substantially rectangular shape as a whole, and has three through holes 4 through which the electron beam passes.
2a to 42c are formed. Then, as shown in FIG. 4 (c), the grid disc 42 is attached to the grid 41.
Are welded so as to overlap with each other to form a second electrode element.

Here, another conventional component manufacturing apparatus will be described with reference to FIG. 5, taking the case of welding the grid 41 and the grid disc top 42 as an example. 51 is
It is a parts supply unit that supplies a grid desktop. The parts supply unit 51 includes a ball feeder 51a, a linear feeder 51b, a vacuum chuck (not shown), and the like. The ball feeder 51a houses a large number of grid disc tops, and the grid disc tops are aligned and sent out to the linear feeder 51b. Then, the grid disk tops sent from the linear feeder 51b are sequentially mounted on the heads 531 to 538 of the turntable 52 by a vacuum chuck as indicated by an arrow Y1. The turntable 52 has a structure that rotates in the direction of arrow Y2,
At position A, the grid disk top is mounted on the head from the linear feeder 51b. A part detecting device 54 is provided at the position B to detect whether or not the grid desktop is normally supplied to the head. Further, at the position C, the grid is supplied from the parts supply unit 55.

The grid supply section 55 is provided with the ball feeder 5
5a, a linear feeder 55b, a vacuum chuck (not shown), and the like. The grids are aligned and sent from the ball feeder 55a to the linear feeder 55b, and are sequentially mounted on the head from the linear feeder 55b by a vacuum chuck. Further, a part detection device 56 is provided at the position D,
It is detected whether the grid is properly attached to the head.

Further, a laser welding device 57 is provided at the position E, and the grid disk top and the grid are welded by using laser light to form one assembly part. The assembled component in which the grid disc top and the grid are welded moves to the unloading portion at the position G through the idle portion at the position F. Then, at position G, the assembled component is taken out of the head by the vacuum chuck 58. Further, a residual quantity detection device 59 is arranged at the position H, and it is detected whether or not there is an assembly part or a residual part on the head.

[0011]

Conventionally, a device for welding the astig plate and the grid and a device for welding the grid desktop and the grid are separately provided. Therefore, two component manufacturing apparatuses for welding the astig plate and the grid and a component manufacturing apparatus for welding the grid desktop and the grid are required for each type of electron gun.

By the way, the Astig plate and the grid disc top are parts used for the same type of electron gun, and the outer contour of the grid welded to the Astig plate and the grid disc top is common. Therefore, if the device for supplying the grid is used also for the two component manufacturing devices, the facility cost can be reduced. However, if these devices are also used, it is necessary to adjust the positions of other related units each time the product type of the electron gun is changed, and efficient production cannot be expected.

The present invention solves the above-mentioned drawbacks, and an object of the present invention is to provide a parts manufacturing apparatus capable of manufacturing a plurality of assembled parts by one apparatus.

[0014]

SUMMARY OF THE INVENTION A parts manufacturing apparatus of the present invention includes a plurality of parts supply devices for supplying a plurality of parts of a plurality of types of assembly parts, each of which is assembled by welding a plurality of parts, and a plurality of parts supply devices. A turntable in which the respective parts supplied from the supply device are combined at a first position by combining parts constituting a common assembly part,
At a second position different from the first position of the turntable, a parts detection device for confirming that the parts are correctly supplied, and the turn different from the first position and the second position. At a third position on the table, a welding device that welds the parts that are combined and supplied to each other to form an assembled part, and a fourth position on the turntable that is different from the first to third positions. , A take-out device for taking out the assembled part, in which the parts are welded to each other, from the turntable.

Further, there is provided a residual quantity detecting device for detecting a residual quantity of the assembled parts or the parts constituting the assembled parts.

Further, each part is a part of an electron gun for a cathode ray tube. Further, each part is an electrode part for dynamic focus arranged adjacent to the fourth grid electrode or the fifth grid electrode of the CRT electron gun.

According to the above configuration, each part of a plurality of types of assembly parts is supplied for each part, and the supplied parts are used as a common assembly part by using an XY robot or the like. They are combined and mounted on the head at the same position on the turntable. In this case, a plurality of types of assembled parts can be manufactured by one part manufacturing apparatus, and the equipment cost can be reduced. Also, even if the type of assembly parts changes and the parts are changed, it is only necessary to change the parts supplied from each parts supply device, and it is possible to respond in a short time and efficient production is possible.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION In the embodiments of the present invention, an electrode for dynamic focusing, which is arranged adjacent to the fourth grid electrode or the fifth grid electrode of an electron gun for cathode ray tubes, a so-called "quadrupole". An example of manufacturing the assembled parts of 1 will be described with reference to FIG.
It should be noted that FIG. 1 shows the entire configuration excluding a control part such as electrical equipment. Further, here, the astig plate and the grid are welded to assemble the first electrode element and the third electrode element of the "quadrupole", and the grid desktop and the grid are welded to the second electrode of the "quadrupole". The case of assembling the element will be described.

Reference numeral 1 is a parts supply unit for supplying a grid, and the parts supply unit 1 is composed of a ball feeder 1a, a linear feeder 1b and the like. The ball feeder 1a aligns a grid with the linear feeder 1b and sends it out in order.

Reference numeral 2 is a parts supply section for supplying the astig plate. The parts supply unit 2 includes a ball feeder 2a and a linear feeder 2b. The ball feeder 2a houses a large number of astig plates and aligns the astig plates with respect to the linear feeder 2b and sends them out in order.

Reference numeral 3 is a parts supply unit for supplying a grid desktop. The parts supply unit 3 includes a ball feeder 3a and a linear feeder 3b. The ball feeder 3a accommodates a large number of grid disc tops, and the grid disc tops are aligned with respect to the linear feeder 3b and sent out in order.

The grids, astig plates and grid desktops sent to the linear feeders 1b, 2b and 3b are sent to the XY robot 4. The XY robot 4 is composed of an X-direction guide 4a and a Y-direction guide 4b, and the Y-direction guide 4b is movable along the X-direction guide 4a in the vertical direction in the figure.

Mounting units 5, 6, and 7 are attached to the Y-direction guide 4b, and the mounting units 5, 6, and 7 are movable along the Y-direction guide 4b in the left-right direction in the drawing. Therefore, the mounting units 5, 6, 7
Moves up, down, left and right in the figure by the action of the XY robot 4,
The linear feeders 1b, 2b, 3b serve to take out the parts of the grid, the astig plate, and the grid disc top, and to attach them to, for example, eight heads 91 to 98 of the turntable 8 as shown by an arrow Y1. .

Further, the eight heads 91 to 98 constituting the turntable 8 are, for example, four of odd-numbered symbols are assembled of the first electrode element (hereinafter referred to as the first assembly part) for welding the astig plate and the grid. 4 for the even number is the second for welding the grid desktop and the grid.
It is used for assembling an electrode element (hereinafter referred to as a second assembly part). Further, the turntable 8 rotates in the direction of the arrow Y2, and the drive source thereof is not a structure in which the division angle is fixed in a fixed direction using a motor and a cam, but something that can be freely positioned such as a stepping motor. It is used.

Here, the respective positions A to H of the turntable 8
The operation will be described. At the position A, the parts constituting the first assembly, that is, the grid and the astigmatic plate are mounted by the mounting units 5 and 6 from the linear feeders 1b and 2b to the head at the same position on the turntable 8. Then, the parts constituting the second assembly, that is, the grid desktop and the grid are mounted on the next head in the same manner. At this time, the two parts mounted together on each head are set in a positional relationship so that they can be welded.

Further, the part detecting device 10 is arranged at the position C, and the mounting state of each part, for example, the presence / absence of the part and the positional deviation are detected by the part detecting device 10.

A laser welding device 11 is arranged at the position E. Then, two parts such as an astig plate and a grid or a grid disc top and a grid are brought into close contact with each other by a pressing mechanism or the like, and welded by the laser welding device 11.

Further, at the position G, a take-out device for taking out the first assembly part and the second assembly part from the head and a parts detecting device 12 are provided. With this device 12, the first assembly part and the second assembly part are provided. Is removed from the head and at the same time it is detected if there is any remaining part on the head.

In the above-mentioned structure, a vacuum head or a mechanical chuck is used as each of the mounting units 5, 6, and 7. Further, a sensor for discriminating between the front and back of the parts can be added to a part of the parts supply units 1 to 3. When the front and back discrimination sensor of parts is added,
The front and back of each part will be selected and delivered in line.

According to the above-mentioned structure, the XY robot is equipped with the plurality of mounting units for mounting the plurality of parts sent from the parts supply section on the head of the turntable. Further, the structure is such that parts constituting a common combination part can be combined and mounted on the head at the same position on the turntable. In this case, the mounting unit can be freely moved up, down, left and right by the action of the XY robot. Therefore, the parts sent from the parts supply unit can be mounted on any head of the turntable. For this reason, even when the types of electron gun parts or the like change and the parts to be assembled are changed, it is only necessary to replace the parts sent from the parts supply unit, and it is possible to cope with it in a short time. Moreover, since a plurality of types of assembled parts can be manufactured by one part manufacturing apparatus, the facility cost can be reduced and the productivity can be improved.

When using the XY robot,
Within the operating range, the number of parts supply units can be increased. Therefore, many kinds of combination parts can be manufactured correspondingly, and the change of the manufactured combination parts, for example, the change of parts, can be easily dealt with by changing the software.

Further, in the above-described embodiment, a dedicated device is provided for taking out the product from the head on the turntable. However, the XY robot may have such a function. In this case, it is possible to carry out a method in which an assembled part once assembled and taken out from the head is returned to the head on the turntable again and then combined with other parts. Although the number of heads on the turntable is eight, the number of heads can be increased or decreased according to the purpose.

When a drive source for rotating the turntable, such as a stepping motor, which can be freely positioned, is used, an indexing angle can be arbitrarily obtained, and the position of the head provided on the turntable can be obtained. You can freely select the number of products and the number, and it is possible to support the manufacture of various types of assembled parts.

[0034]

According to the present invention, it is possible to realize a parts manufacturing apparatus capable of manufacturing a plurality of assembled parts by one apparatus.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating an embodiment of the present invention.

FIG. 2 is a view for explaining a conventional example and shows an example of an electrode element.

FIG. 3 is a configuration diagram illustrating a conventional example.

FIG. 4 is a diagram illustrating a conventional example, showing an example of an electrode element.

FIG. 5 is a configuration diagram illustrating another conventional example.

[Explanation of symbols]

 1, 2, 3 ... Parts supply section 1a, 2a, 3a ... 1b, 2b, 3b ... 4 ... XY robot 4a ... X direction guide 4b ... Y direction guide 5, 6, 7 ... Mounting unit 8 ... Turntable 91 -98 ... Head 10 ... Parts detection device 11 ... Laser welding device 12 ... Extraction device and parts detection device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Go Ihara 7-1 Nisshin-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa Toshiba Electronics Engineering Co., Ltd.

Claims (4)

[Claims] 1. A common assembly of a plurality of parts supply devices for supplying a plurality of types of parts, each of which is an assembly part that is assembled by welding a plurality of parts, and parts supplied from the parts supply device. A turntable in which parts that make up a part are combined and supplied at a first position, and a second position of the turntable that is different from the first position to confirm that the parts are correctly supplied A parts detection device, and a welding device configured to weld parts supplied in combination at a third position of the turntable different from the first position and the second position to form an assembled part; The first to the third
At a fourth position on the turntable that is different from the position
A device for manufacturing a component, comprising: a take-out device for taking out the assembled part, in which the parts are welded to each other, from the turntable. 2. The component manufacturing apparatus according to claim 1, further comprising a residual quantity detection device for detecting a residual quantity of an assembly part or parts constituting the assembly part. 3. The part manufacturing apparatus according to claim 1, wherein each part is a part of an electron gun for a cathode ray tube. 4. Each of the parts is a fourth electron gun for a cathode ray tube.
3. The component manufacturing apparatus according to claim 1 or 2, which is an electrode component for dynamic focus arranged adjacent to the grid electrode or the fifth grid electrode.