JP2002108435A - Device and method for instructing manufacture work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small and light work instructing device whose manufacturing cost is low and whose degree of freedom for instruction display is high. SOLUTION: An LCD panel 22 is irradiated with light from a light source 21. The transmission light is enlarged in a lens 23 and work instructing information to a manufacture worker is projected on an irradiating face 7. Work instructing information is preliminarily stored in a memory 5, appropriate work instructing information is read in accordance with the progress of work by the control of a CPU 4 and the display of the LCD panel 22 is switched. Consequently, the display of work instructing information projected on the upper face of a board or the like on the irradiating face 7 is switched.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing work instruction apparatus and a manufacturing work instruction method for giving a manufacturing worker a work instruction in a manufacturing process.

[0002]

2. Description of the Related Art Conventionally, in the process of manually mounting various parts on a board, figures and characters indicating the mounting positions and directions of the parts, the names of the parts, and the like are printed on a worktable on which the board is mounted or on the board surface. A device that projects and displays the information on the screen and gives instructions to an operator is used. By using this device, the operator can correctly recognize the component name, the mounting method, and the like every time a component is mounted, thereby reducing the number of operation errors and increasing the operation efficiency.

[0003]

Here, typical examples of the conventional work instructing apparatus for giving a work instruction to a manufacturing worker as described above and problems thereof will be enumerated.

The first example uses an XY drive device, in which a light source installed on the upper surface of a work table is moved by the XY drive device, and the light from the light source is projected on the work table. To give work instructions. In this work instruction device, it is possible to easily display an instruction at any position on the work table, but the use of the XY drive device inevitably makes the entire device bulky and heavy. It is also expensive.

In a second example, an LED (Light) is provided on the lower surface of the substrate.
An apparatus in which an emitting diode (Emitting Diode) is installed, for example, turns on an LED at a position of a component mounting hole from a lower surface of a mounting position of a board, thereby instructing a worker to insert a component. However, in this device, when the number of LEDs to be used is small, it is necessary to mechanically re-install the LED in a necessary place every time a component is mounted, and to use a large number of LEDs to electrically switch a lighting position. In the case where the switching is performed, the cost increases. Furthermore, since the LED is turned on from the bottom, it is not easy to visually recognize the LED.

A third example is an apparatus using a laser beam, which reflects a laser beam on a movable mirror and irradiates it on a worktable to display an instruction. In this case, the apparatus configuration can be made relatively compact, but the cost is increased because the mechanism for changing the angle of the mirror requires precision.

Further, in the above three examples, the shapes of the instruction display that can be performed are limited, and it is not possible to provide an easy-to-understand display for various work processes. The present invention has been made in view of such a problem, and an object of the present invention is to provide a work instruction device that is small and lightweight, has low manufacturing cost, and has a high degree of freedom for instruction display.

[0008]

According to the present invention, in order to solve the above-mentioned problems, in a manufacturing work instruction apparatus for giving a manufacturing worker a work instruction in a manufacturing process, the work instruction information in the manufacturing process is stored. Instruction information storing means for irradiating the liquid crystal panel with light from behind, thereby projecting the work instruction information on the processing surface of the object to be manufactured, and the instruction information as the work proceeds. There is provided a manufacturing work instruction apparatus, comprising: a liquid crystal display control means for controlling a display on the liquid crystal panel according to the work instruction information read from a storage means.

In such a manufacturing operation instructing apparatus, operation instruction information for a manufacturing worker is stored in advance in an instruction information storage unit, and the operation instruction information projected onto a processing surface of a manufacturing object by the instruction information projecting unit. Is selected under the control of the liquid crystal display control means. Projection of work instruction information is performed by irradiating the liquid crystal panel with light from the rear surface, so the shape to be projected can be set freely,
In addition, it is possible to realize a small, lightweight, and low-cost apparatus that does not require a movable part.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration example of a work instruction device of the present invention.

The work instruction device 1 shown in FIG.
A projection mechanism unit 2 having an LCD (Liquid Crystal Display) panel 22 and a lens 23 for projecting work instruction information, an LCD drive circuit 3 for driving the LCD, and a CPU (Central Processing) for controlling the entire apparatus.
Unit) 4, a memory 5 for storing work instruction information, an input device 6 for inputting instructions by a manufacturing operator, and an irradiation surface 7 on which light from the projection mechanism unit 2 is irradiated to project the work instruction information. Composed of The projection mechanism unit 2 includes a light source 21 for irradiating light, an LCD panel 22 for controlling transmission of light from the light source 21, and a lens 23 for expanding transmitted light from the LCD panel 22 to the irradiation surface 7. The work instruction device 1 uses the projection mechanism unit 2 to transmit work instruction information in the manufacturing process to the surface of a manufacturing object such as a substrate or the irradiation surface 7 such as a work table on which the manufacturing object is mounted. It is a device that projects and displays and instructs a manufacturing worker on work such as a method of mounting parts and a part name, and is used as an instruction device for assembling support in manufacturing processes in all types of industries.

In the projection mechanism 2, an LCD panel 22
Is a general liquid crystal display panel in which, for example, a liquid crystal layer is sandwiched between an alignment film and a transparent electrode film, and a transparent plate and a polarizing plate are further laminated. By controlling the availability on a pixel-by-pixel basis, an image of the target work instruction information is created, thereby forming a transmissive liquid crystal display device. The transmitted light of the LCD panel 22 is incident on the lens 23 and is expanded on the entire irradiation surface 7, and the shape of the work instruction information is projected on the irradiation surface 7. L
The CD drive circuit 3 drives the LCD panel 22 based on a control signal from the CPU 4 to switch the display. C
The PU 4 reads predetermined data from a plurality of pieces of work instruction information stored in the memory 5 in response to an instruction input from an input device 6 such as a button device or in accordance with a predetermined order, and reads out the LCD drive circuit 3. Output to Further, data such as the shape and the projection position of the work instruction information may be input using the input device 6 and stored in the memory 5 under the control of the CPU 4.

The shape of the work instruction information that can be projected on the irradiation surface 7 depends on the number of dots on the LCD panel 22. When the number of dots on the LCD panel 22 is small and the resolution is low, the work instruction information is limited to a simple shape such as a rectangle or a circle indicating the mounting position of the component or an arrow or the like indicating the mounting direction. . However, by increasing the number of dots on the LCD panel 22, it is possible to project and display, for example, figures and character information indicating the fine shape of the component, photographic images of the component, and the like. As the LCD panel 22, for example, a display surface having a size of 1 × 1.5 (cm)
Those having a resolution of 0 × 800 dots can be used. Such a small, high-resolution LCD panel 22
It is used for small LCD projector devices.

An irradiation surface 7 on which work instruction information can be projected.
Can be freely set by the lens 23. For example, by setting the light irradiation angle in the projection mechanism 2 to be exactly perpendicular to the irradiation surface 7 and using an appropriate lens 23, the XY coordinates on the irradiation surface 7 can be accurately specified, and a wide projection can be performed. In the range, it is possible to specify the exact mounting position of the component.

As described above, in the work instruction device 1, the LCD
By using a structure in which light is transmitted through the panel 22 and then enlarged by the lens 23 and projected on the irradiation surface 7, a work instruction for projecting is obtained without using a movable part and with a small and lightweight device configuration. The degree of freedom for information is high, the projection range can be widened, and an effective work instruction can be given to a manufacturing worker. The manufacturing worker performs work such as mounting and assembling parts according to the displayed work instruction information, and uses the input device 6 when moving to the next work.
Instruction input is performed, and work is continued according to the switched instruction display. As a result, work can be performed accurately, and work efficiency is improved.

It is also possible to change the configuration of the projection mechanism 2 to display the work instruction information in color.
In this case, a projection mechanism is configured using three color filters of RGB (red, green, and blue) and three LCD panels corresponding to each color. FIG. 2 shows a first configuration example of a projection mechanism capable of performing color display.

The projection mechanism 210 shown in FIG.
Light sources 211r, 211g, and 2 corresponding to
11b, color filters 212r, 212g and 212b for converting light from each light source into each color of RGB,
LCD panels 213r, 213g and 213b corresponding to each color of GB, and prism 2 for synthesizing light of each color of RGB
14 and a lens 215 that enlarges and projects the combined light onto the irradiation surface 7.

In the projection mechanism 210, each color is displayed by using independent light sources 211r, 211g, and 211b for each color of RGB. Each light source 211r, 211g
And the light emitted from 211b is the color filter 2
The lights of RGB colors are formed by the lights 12r, 212g, and 212b, and are incident on the LCD panels 213r, 213g, and 213b, respectively. LCD panel 213r,
In 213g and 213b, display corresponding to each color of RGB is performed based on the control of the LCD drive circuit 3, and the transmitted light enters the prism 214, respectively. LCD
The transmitted light of the panel 213g passes through the prism 214 and exits to the lens 215, and the LCD panels 213r and 213r
The transmitted light 3b is reflected by the prism 214 and emitted to the lens 215, whereby the respective colors of RGB are combined, and the work instruction information is projected in color on the irradiation surface 7 by the lens 215.

FIG. 3 shows a second example of the configuration of the projection mechanism capable of performing color display. Projection mechanism unit 22 shown in FIG.
0 denotes one light source 221, and half mirrors 222a and 222 that split light from the light source 221 into transmitted light and reflected light.
2b and mirrors 223a, 223b and 22 for reflecting light
3c and 223d; color filters 224r, 224g and 224b for converting light into RGB colors;
LCD panels 225r, 225g and 225b corresponding to each color B, and prism 22 for synthesizing light of each color RGB
6 and a lens 227 that projects the combined light onto the irradiation surface 7 in an enlarged manner.

In this projection mechanism 220, one light source 2
21 is split by half mirrors 222a and 222b, and the LCD panels 225r and 225 of each color are split.
g and 225b. Light emitted from the light source 221 and transmitted through the half mirrors 222a and 222b is converted into green light by the color filter 224g. The light reflected by the half mirror 222a is reflected by the mirrors 223c and 223d, enters the color filter 224b, and is converted into blue light. Further, the light reflected by the half mirror 222b is reflected by the mirrors 223a and 223b, enters the color filter 224r, and is converted into red light. These lights are supplied to the LCD panel 225r corresponding to each color of RGB,
The transmission is controlled by 225g and 225b, synthesized by prism 226, and irradiated surface 7 by lens 227.
The work instruction information is projected in color.

By the structure of the optical system shown in FIGS. 2 and 3, any color can be given to the display to be projected, the degree of freedom with respect to the work instruction information to be displayed is increased, and the manufacturing operator is more effective. Work instructions can be given. The projection mechanism 2 shown in FIGS.
10 and 220 are a combination of three colors of RGB, but a configuration using only two colors may be used. In this case, the number of color filters for converting light from the light source into each color and the number of LCD panels for displaying each color are two. However, compared to the case where three colors are used, the selection range of the projected display color is narrower.

Next, as an embodiment of the work instructing device, a case where the present invention is applied to a device for attaching components to a board will be described. FIG. 4 is a perspective view showing a main configuration of the component mounting apparatus according to the embodiment of the present invention.

The component mounting apparatus 10 includes a work table 12 on which a substrate 11 to which a component is to be mounted is placed,
A projection mechanism unit 13 for projecting work instruction information on the upper surface of
Controller 14 for controlling display by projection mechanism unit 13
And a component supply port 15 through which necessary components are sequentially supplied to the operator, and an input switch 16 through which the operator inputs an instruction to shift to the next operation. In the component mounting apparatus 10, work instruction information is projected onto the upper surface of the board 11 by the projection mechanism 13, and the worker performs a work of mounting predetermined components on the board 11 according to the work instruction information.

On the work table 12, the substrate 11 is placed and fixed. Also, in the vicinity of the substrate 11, a component supply port 15 is provided.
And an input switch 16. Work table 12
A component supply box (not shown) is provided below the component supply port 15. In this component supply box, a plurality of components for mounting are stored in the order of operation, and the component supply box moves as the operation proceeds, so that a target component can be taken out from the component supply port 15. ing. The input switch 16 is a button switch or the like.
Is input.

The projection mechanism 13 includes a light source, an LCD panel, a lens, and the like (not shown) inside, similar to the projection mechanism 2 of the work instruction device 1 shown in FIG. The work instruction information is projected on the surface of the substrate 11 and the upper surface of the worktable 12 by controlling the transmission for each pixel and enlarging the transmitted light by a lens. The inside of the projection mechanism 13 may be configured as shown in FIGS. 2 and 3 so that color work instruction information can be projected. The driving of the LCD panel is controlled by the controller 14. Controller 14
An LCD drive circuit (not shown), which is provided below the work table 12 and is not shown in the drawing similarly to the work instruction device 1 shown in FIG.
U and a memory, and data of work instruction information that can be projected is stored in the memory in advance. Also,
This data may be supplied to the controller 14 in a state where it is input from an input device such as a keyboard or stored in a storage medium such as a floppy (registered trademark) disk, and may be stored in a memory.

The board 1 in the component mounting apparatus 10
The work of attaching the components to 1 is performed as follows. First, the operator presses the input switch 16 and presses the controller 14.
Is given an instruction to start work, the controller 14 selects and reads predetermined work instruction information data from the memory, irradiates the light source of the projection mechanism unit 13 with light, and causes the LCD panel to display the work instruction information. . At this time, the component supply box is moved under the control of the controller 14, and the component corresponding to this work is set in the component supply port 15. The operator takes out the component from the component supply port 15 and performs a work of attaching the component to the board 11 according to the work instruction information projected on the board 11. When the mounting operation is completed, the operator presses the input switch 16 again. In response to this input, the controller 14 switches the display on the LCD panel to the one for the next operation and at the same time moves the component supply box.

In the component mounting apparatus 10 as described above,
An appropriate component mounting instruction is given to the worker as the work progresses, and the movement of the component supply box is linked to supply an appropriate component to the worker from the component supply port 15.
The probability of incorrect mounting of parts is reduced, and accurate work can be performed.

Next, a specific example of a shape projected on the upper surface of the substrate 11 as work instruction information will be described. FIG. 5 shows a display example of the work instruction information, and FIG.
(B) shows a case where a diode is attached, and (c) shows a case where a chemical capacitor is attached.

There are cases where components to be attached to the substrate 11 have polarity at the time of attachment. In the display example shown in FIG. 5, each of the shapes has a shape for instructing the operator of the polarity at the time of attachment of each component. ing. In FIG. 5A, by projecting the shape of the part on the part to be actually attached,
Indicates the mounting direction of the part. In FIG. 5B, the direction in which current flows through the diode is indicated by an arrow, and FIG.
Now, by showing the plus and minus poles with letters,
Each of them indicates the mounting direction of the component. Such a display makes it difficult for the operator to make a mistake in the mounting direction of the parts. Further, it is also possible to perform dynamic display such as adding a color to the display, continuously moving a display pattern such as an arrow to the left and right by several millimeters, and blinking a display pattern such as a plus or minus display to highlight it. By using these displays in combination, a synergistic effect for inducing accurate work is produced. The projection mechanism 13
When a high-resolution LCD panel is used, not only figures but also characters and photographic images can be displayed in high definition. For example, by projecting a color photographic image of the component itself onto the substrate 11, In this way, it is possible to reduce mistakes in the selection of parts and to understand the mounting method more accurately.

In the above-mentioned component mounting apparatus 10,
Since the range that can be projected is determined by the performance of the lens of the projection mechanism unit 13, not only on the substrate 11 but also on the worktable 12
It is also possible to project the work instruction information over a wide area on the upper surface of the computer. Here, as such an example, FIG. 6 shows a plan view of the component mounting apparatus when the component names are displayed on the work table 12.

On the work table 12 of the component mounting apparatus 10 shown in FIG. 6, a component name display section 17 is provided near the fixed substrate 11, and a character display of the name of the component to be mounted is projected on this portion. I have. Such a character display can be projected on an arbitrary place on the work table 12 in accordance with the selection of the lens of the projection mechanism unit 13 and the resolution of the LCD panel. It may be displayed.

As described above, the above-described component mounting apparatus 1
In the case of No. 0, since the LCD panel is used to project the work instruction information, any display is possible as the work instruction information to be projected, even though the movable part is not required and the device configuration is small and lightweight. Can be easily widened, and an effective work instruction can be given to a manufacturing worker. Further, since the installation of the apparatus is easy, it is also possible to configure a production line in which a plurality of component mounting apparatuses 10 are arranged in parallel and a work process is managed by one controller.

In the above-described component mounting apparatus 10,
In addition to the switching of the work instruction information by the controller 14, the parts supply box is moved to assist the worker in performing an accurate work. However, for example, the work instruction can be performed using voice. . in this case,
An audio output device including an audio processor, an amplifier, a speaker, and the like is installed on the work table 12, and the output audio is switched under control of the controller 14 in conjunction with display switching of the work instruction information. As the sound, for example, by outputting the name of the component to be mounted, the mounting method, the precautions for mounting, and the like, it is possible to prompt the worker to perform more accurate work.
Further, the projection mechanism unit 13 can be arranged at an arbitrary position by disposing a mirror on the optical path.

[0034]

As described above, in the manufacturing operation instruction apparatus of the present invention, the operation instruction information is projected onto the processing surface of the object by irradiating the transmission type liquid crystal display device with light from the rear surface. Since the projection is performed, the shape to be projected as the work instruction information can be freely set, and a small, lightweight, and low-cost apparatus that does not require a movable part can be realized.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration example of a work instruction device of the present invention.

FIG. 2 is a diagram illustrating a first configuration example of a projection mechanism capable of performing color display.

FIG. 3 is a diagram illustrating a second configuration example of a projection mechanism capable of performing color display.

FIG. 4 is a perspective view showing a main configuration of a component mounting apparatus according to an embodiment of the present invention.

5A and 5B show display examples of work instruction information, wherein FIG. 5A shows a case where an IC is mounted, FIG. 5B shows a case where a diode is mounted, and FIG. 5C shows a case where a chemical capacitor is mounted.

FIG. 6 is a plan view of the component mounting apparatus when a component name is displayed on a work table.

[Explanation of symbols]

1. Work instruction device 2. Projection mechanism unit 3. LCD
Drive circuit, 4 CPU, 5 Memory, 6 Input device, 7 Irradiation surface, 21 Light source, 22 LCD
Panel, 23 ... Lens

Claims (8)

[Claims] 1. A manufacturing work instruction apparatus for giving a manufacturing worker a work instruction in a manufacturing process, an instruction information storage means for storing the work instruction information in the manufacturing process, and a light from a rear surface of the liquid crystal panel. Irradiating the work instruction information onto the processing surface of the object to be manufactured, and the liquid crystal according to the work instruction information read from the instruction information storage means as the work proceeds. And a liquid crystal display control means for controlling display on a panel. 2. The manufacturing operation instruction apparatus according to claim 1, wherein the operation instruction information includes a graphic, a character, and a photographic image. 3. The manufacturing work instruction apparatus according to claim 2, wherein said work instruction information has a color. 4. The manufacturing operation instruction according to claim 3, wherein the instruction information projecting means includes a plurality of the liquid crystal panels, and superimposes the transmitted light from each of the liquid crystal panels and projects the light on the processing surface. apparatus. 5. The manufacturing work instruction apparatus according to claim 1, wherein said instruction information projecting means is capable of projecting said work instruction information onto a worktable surface on which said object to be manufactured is mounted. 6. The manufacturing operation instructing device includes an instruction input unit for inputting an instruction by the manufacturing operator in accordance with the progress of a work, and the liquid crystal display control unit controls the liquid crystal display in response to the instruction input. 2. The manufacturing operation instruction device according to claim 1, wherein display on the device is controlled. 7. The manufacturing work instruction device includes an instruction sound output device that outputs a work instruction sound for giving a work instruction to the manufacturing worker by voice in conjunction with the projection of the work instruction information. The manufacturing operation instruction device according to claim 1, wherein: 8. A manufacturing operation instruction method for giving an operation instruction in a manufacturing process to a manufacturing operator, wherein the operation instruction information in the manufacturing process is stored in advance, and a liquid crystal panel is irradiated with light from a rear surface, The stored work instruction information is read out as the work progresses, and the display on the liquid crystal panel is controlled accordingly, whereby the work instruction information is projected on the processing surface of the object to be manufactured. Manufacturing work instruction method to do.