JPS61198700A - Part mounting apparatus for printed circuit board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for mounting electronic components onto a printed circuit board in a labor-saving manner.

[Conventional technology]

When mass production is required, electronic components are automatically mounted on printed circuit boards using a mounting robot or the like.

However, when producing products in relatively small quantities or producing a wide variety of products in small quantities, mounting work is still performed manually due to equipment costs.

[Problem that the invention seeks to solve]

Manually mounting components onto a printed circuit board involves inserting legs using connection terminals provided on each component into holes formed in the printed circuit board for mounting components. It takes a considerable amount of experience and skill to manually mount the circuit boards without making any mistakes, and in addition, when working with a large number of printed circuit boards in small quantities, the work efficiency is extremely low. Not only will it decline.

The level of worker fatigue is also higher than when working with the same type of product.

[Means for solving problems]

In view of the above-mentioned problems, the present invention has been made with the object of providing a device that can perform labor-saving mounting of a wide variety of components on printed circuit boards in small quantities. A light receiving/emitting plate in which a large number of sets of light receiving/emitting parts including optical elements are closely arranged on a plane, and a plurality of parts are divided and accommodated by giving appropriate arrangement symbols to each part and arranged as described above. a parts tray for positioning predetermined parts at takeout positions according to symbols; a teaching light that emits electrical signals corresponding to the reference symbols and irradiates light to appropriate light-receiving elements on the light-receiving and emitting plates; and the light-receiving and emitting plates. A computer connected to the input/output section of the reception/emission signal of each reception/emission section and the positioning drive section of the component tray, wherein the computer is connected to the input/output section of the reception/emission signal of each reception/emission section and the positioning drive section of the component tray, and the computer is connected to the input/output section of the reception/emission signal of each reception/emission section and the positioning drive section of the above-mentioned component tray. At the same time, the signals of the above-mentioned reference symbols and the light-receiving signals are stored in the order in which they are stored, as a take-out positioning signal of the component tray and a light-emission signal of the light-emitting element that is paired with the light-receiving element. The invention is characterized in that it consists of a computer configured to output.

[Effect]

On the light emitting/receiving plate, select multiple component mounting positions on the printed circuit board or its drawing on which the components are to be mounted, and the components corresponding to each component mounting position by operating the teaching light at the component symbol and component position in the order in which the components are to be mounted. This memory signal is stored in the computer, and the corresponding parts on the component tray are sequentially positioned at the take-out position, and the light-emitting elements at the corresponding mounting positions on the plate emit light in the order in which the parts should be mounted, allowing the operator to take out the parts. Hold only the parts in hand.

The component can be mounted at the position where the light emitting element emits light without making a mistake.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

1 has a plurality of sets of light emitting/receiving parts 2, each of which includes a light emitting element 2a such as a light emitting diode and a light receiving element 2b such as a photodiode, arranged in a regular density in a plane within a base frame 1a which is rectangular in plan. These are light receiving and emitting plates arranged side by side.

The size of the light receiving/emitting plate 1 may be any size as long as it can cover a general size printed circuit board. Note that the upper surface of the light receiving and emitting section 2 is provided to protect each element 2a, 2b.

A translucent cover may also be provided.

Reference numeral 3 denotes a parts tray, and here, as an example, the main body 3a is divided radially into a plurality of parts storage compartments 3b.
At the same time, a lid body 4 is provided on the tray main body 3a by cutting out the negative housing section 3b to form a component ejection opening 4a.

Furthermore, the main body 3a of the tray 3 is connected to an index drive mechanism 31 consisting of, for example, a motor, a speed reducer, etc., and is supported so as to be rotatable in forward and reverse directions with the minimum rotation angle being the angle of the section 3b. Note that the lid 4 does not rotate here.

In this way, each storage section 3b whose extraction position is determined in one place by the extraction port 4a is sequentially or arbitrarily given a component symbol, such as a number 1, a Japanese syllabary, an alphabet, etc., to identify the stored components. The symbols are matched.

Note that the component tray 3 may be formed as a linear sliding type instead of a one-turn type. In this case, the tray 3 of the above embodiment is placed at a place on the side of the light receiving/emitting plate 1 where parts can be easily taken out. Therefore, the component tray of the linear sliding type can also slide along the vertical or horizontal direction of the plate 1, and be positioned on the side from which components can be easily taken out. Further, the component tray 3 may be formed in a plurality of stages. In the case of forming a plurality of stages, the positioning operation is the same as each operation in the above example with the addition of vertical movement.

Reference numeral 5 denotes a teaching light having a cylindrical shape that is large enough to be held by a person, and a light source 5a that may or may not include an optical system such as a lens is disposed inside the lower part, while the upper surface is cylindrical. A keyboard serving as a component symbol input section 5b and its numeric symbol display section 5c form the keyboard. Furthermore, 5d is the light source 5
The light-shielding hood formed around a generally needs to be large enough to cover the components to be mounted.

In this embodiment, the light receiving element 2b in the light receiving/emitting plate 1 outputs a light receiving signal to a subsequent circuit when it receives pulsed light, for example, in order to prevent the light receiving element 2b from performing a light receiving operation due to natural light or the like. Something is desirable. In this case, the light source 5a of the teaching light is also configured to emit pulsed light, for example.

In order to prevent the light-receiving element 2b from outputting a light-receiving signal due to external light such as natural light, the light-emitting wavelength should be specified or other appropriate methods should be adopted, and the operating conditions of the light-receiving element should be made to correspond to this. Good too.

A signal generated when the input section 5b of the teaching light 5 is operated and a light reception signal of the light receiving element that operates upon receiving the emitted light j[5a are stored in the computer 6 described below. Here, the functions of the computer 6 will be explained according to the operating procedure according to the present invention.

Then, when a printed circuit board (not shown) on which components are to be mounted is placed on the light receiving/emitting plate 1 and a component signal to be mounted is input to the teaching light 5 from the input section 5b, a signal corresponding to the symbol is transmitted to the computer. 6 is input, and
To confirm the input, the signal is displayed on the display section 5c.

If there is no error in the input symbol, hold the teaching light 5, position its light emitting part on the printed circuit board corresponding to the position where the component of the input component symbol is to be mounted, and turn on the light source 5a. Upper hole for mounting components (not shown)
The light emitted from the light receiving element 2b is received by the light receiving element 2b, and a light receiving signal is supplied to the computer 6.

This light reception signal is paired with the component symbol signal and stored inside the computer 6. Therefore, for each component to be mounted, for example, by having the computer 6 store a signal representing the component symbol and position using the above-mentioned method in the order of mounting, the computer 6 can record a plurality of components to be mounted and their mounting order and position. Teach.

Note that the input of the 1-component signal may be performed, for example, by voice. In this case, the input section 5b of the teaching light 5 is usually a microphone, and the computer side converts the voice signal into A/D and stores it. Make it.

The signals stored in the computer 6 as described above are
In the order in which they are stored, they are output as an index activation signal for the component tray 3 and a light emission signal for the light emitting element 2a at the corresponding component position.

That is, when the computer 6 is placed in a state where it outputs the stored signals by an appropriate command, the signals representing each component symbol and the light emission of the light emitting diode 2a at the position corresponding to the component are outputted at an appropriate time pitch in the order in which they were stored first. Since the signal is output, the one-component tray 3 is rotated so that the storage section 3b corresponding to the signal is located at the outlet 4a, and
The light emitting element 2a at the mounting position corresponding to the component emits light.

Therefore, the operator can simply pull out the component from the extraction port 4a without any special judgment and insert the connection terminal leg of the component into the mounting hole where the light emitting element 2a is emitting light. The corresponding components are inserted into the mounting holes in the order stored in the memory.

Here, the component position is taught by the teaching light 5 because light passes through the component mounting hole of the printed circuit board.

The light emitting element 2a emits light only from the light emitting element that is paired with the element that actually received the light, and therefore, the orientation of the component can also be confirmed by this light emission.

〔effect〕

The present invention is as described above, and on the light receiving/emitting plate, teaching lights are written on the printed circuit board on which the components are to be mounted or components corresponding to a plurality of component mounting positions in the drawing thereof in the mounting order of the components with their component symbols and component positions. operate and store it in the computer.

Based on this memory signal, the corresponding components on the component tray are sequentially positioned at the take-out position, and the light emitting elements at the corresponding mounting positions on the plate emit light in the order in which the components should be mounted.
Workers can hold only removable parts in their hands and mount the parts in the position where the light emitting element emits light without making a mistake.
Therefore, it is extremely useful as a device for manually mounting electronic components on printed circuit boards of various types and in small quantities.

[Brief explanation of drawings]

FIG. 1 is a plan view of an example of a light receiving/emitting plate according to the present invention, FIG. 2 is a plan view of an example of a component tray, FIG. 3 is a partially sectional front view of an example of a teaching light, and FIG. The figure is a block diagram of an example of the device of the present invention. 1... Receiving and emitting plate, 2... Receiving and emitting section, 2a.
...Light emitting element, 2b...Light receiving element, 3...Component tray, 3a...Tray main body, 3b...Component storage compartment, 4a...Output port, 5...Teaching light, 5a・・・
・Light source, 5b...Component symbol input section, 5c...Display section, 6...Computer

Claims (1)

[Claims] A light receiving and emitting plate in which multiple sets of light receiving and emitting parts, each consisting of a light receiving element and a light emitting element, are closely arranged on a plane, and a plurality of parts are divided and housed by assigning appropriate reference symbols to each part. a parts tray for positioning a predetermined part at a take-out position according to the arrangement symbol; a teaching light that emits an electric signal corresponding to the arrangement symbol and irradiates light to appropriate light-receiving elements on the light-receiving/emitting plate; A computer connected to the input/output part of the reception/emission signals of each reception/emission part of the reception/emission plate and the positioning drive part of the above-mentioned parts tray, and a rearranging symbol of the parts supplied from the teaching light at that time when the teaching light is activated. and the light receiving signal of the light receiving element are memorized and stored, and the stored signals of the above-mentioned rearranging symbol and the light receiving signal are stored in the order in which they are stored. 1. A printed circuit board component mounting apparatus comprising: a computer configured to output a light emitting signal;