JPH05294416A - Part attaching device - Google Patents

Abstract

PURPOSE:To provide a parts attaching device which carries out automatic parts attaching work while conducting efficient parts control with minimum stock by grasping the types and quantity of parts. CONSTITUTION:In the rotary rack of a parts storage part 2, multiple types of reel parts are stored with them fitted in a cassette. The parts storage part 2 holds data on the types and quantity of the stored parts. A parts attaching part 3 attaches the parts on a printed circuit board by the cassette fitted to it. The parts attaching part 3 counts the number of used parts, and holds data on the types and quantity of the used parts. A control part 4 is provided with a host computer 14 connected to the parts storage part 2 and the parts attaching part 3, and a terminal device 15 connected to the parts storage part 2. The control part 4 grasps present parts stock condition from both the data and the data on the printed circuit boards to be manufactured so as to carry out necessary parts, and output a warning if lack of parts occurs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus for arranging inventory of stored components and unloading required components and automatically mounting them on a work.

[0002]

2. Description of the Related Art An automatic mounting device is used to mount a chip component on a printed circuit board. With this device,
In order to continuously supply the components, a long tape to which many components of the same type are attached is wound into a reel, which is mounted on a cassette and used. There are large, medium, and small types of cassettes, and the type of cassette to be mounted is determined by the reel.

[0003]

Generally, a printed circuit board is manufactured in a variety of products in a small amount, and many kinds of chip parts are used in one factory. Since these chip parts are prepared as a single reel or in a state where the reel is mounted in a cassette, there is a problem that a large storage space is required and the management of the quantity and type becomes extremely complicated.

An object of the present invention is to provide a component mounting apparatus capable of performing automatic component mounting work while grasping the type and quantity of components and performing efficient component management with a minimum required inventory.

[0005]

A component mounting apparatus of the present invention comprises a component storage unit for storing components, a component mounting unit for mounting the supplied components on a work, and types of components required for mounting on the work. And data on the quantity, and from the data on the kind and quantity of the parts stored in the storage section and the data on the kind and the quantity of parts used in the component mounting section, It has a control unit for grasping data on the types and quantities of components left in the component mounting unit.

[0006]

[Function] The parts are stored in the parts storage section. The control unit knows the data about the type and quantity of the stored parts. When the type and quantity of the product are specified, the control unit outputs the type and quantity of the required parts. The necessary types and quantities of parts are taken out from the parts storage section and supplied to the parts mounting section for manufacturing. The control unit grasps the data on the type and quantity of the component at the present time from the data on the type and the number of components used in the component mounting unit and the data when the component is initially stored in the component storage unit.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A component mounting apparatus according to an embodiment will be described with reference to FIGS. The component mounting apparatus 1 is capable of mounting electronic components on a printed circuit board as a work while performing inventory management of various types of electronic components, and is useful for high-mix low-volume production of printed circuit boards.

As shown in FIG. 1, the component mounting apparatus 1 of this embodiment has a component storage unit 2 for storing and storing components, a component mounting unit 3 for automatically mounting components on a printed circuit board, and component management information. It has a control unit 4 for controlling the above.

In this embodiment, the electronic components are attached to a tape-shaped mount so that they can be easily taken out, and the mount is wound around a core material to form the reel 5.
As shown in FIG. 3, the reel 5 is mounted on a cassette 6, and the cassette 6 can be easily attached to and detached from the component mounting portion 3.

The component mounting unit 3 is a device for automatically mounting electronic components on a work such as a printed circuit board. When the work is started by mounting the cassette 6 to which the reel 5 is attached, the mount is pulled out from the reel 5, and the electronic components are taken out from the mount and mounted on the substrate.

The component mounting portion 3 recognizes the type of the reel 5 (that is, the type of electronic component) of the mounted cassette 6 and reads the number of electronic components used for each type of the reel 5. It can be counted by a counter. Then, data relating to the type and quantity of the electronic components used can be held, and can be sent to the control unit 4 as needed.

The component storage unit 2 shown in FIG. 1 stores a cassette 6 having a reel 5 mounted therein, a replenishment reel 5a used when the reel of the cassette runs out, and an empty cassette having the replenishment reel 5a mounted therein. It is a storage device for.

As shown in FIG. 2, the parts storage unit 2 is
The housing 7 has a pair of sprockets 8 and 8, and a chain 9 is wound around the sprockets 8 and 8. A plurality of box-shaped carriers 11, which are storage places for the cassette 6 and the reel 5, are connected to the chain 9 via a support arm 10. Each carrier 11
Has a guide roller 13 engaged with an oval guide 12 formed on the housing 7. Therefore, if the chain 9 is rotationally driven by a motor (not shown), the carrier 11 is moved to the housing 7
It can be circulated and rotated inside, and a desired carrier 11 can be set in the entrance / exit 7a provided in the housing 7 to take in and out articles.

The parts storage unit 2 has storage / delivery processing means. The storage / receipt processing means includes input means such as a bar code scanner or a ten-key pad for inputting the quantity of each type of cassette or the like to be loaded / unloaded or driving the carrier 11, processing means for processing the input information, and information Has display means, etc.

Then, as shown in FIG.
Specifies the location where the cassette 6 and the replenishment reel 5a are to be stored. By specifying this location and processing the goods in and out, the type of the goods stored in the predetermined position in the parts storage unit 2 is specified. Therefore, the required carrier 11 can be set at a required position by grasping the quantity.

The control unit 4 includes a host computer 14 connected to the component storage unit 2 and the component mounting unit 3.
And the host computer 14 via the parts storage unit 2.
And a terminal device 15 connected to.

In the host computer 14, as will be described later, the number of electronic parts contained in one reel whose product number is registered and the type of cassette suitable for the reel are input.

In the terminal device 15, an operation for registering the product number of the reel 5 mounted on the cassette 6, the product number of the replenishing reel 5a, and the product number of the empty cassette to each location of each component storage unit 2 is performed. In addition, set product data indicating the types of parts used for a specific product and the required quantity per product is registered.

Next, the procedure for using this apparatus will be described. (1) Preparation 1 ... FIG. 4 1) As shown in step 41, in the “stock file maintenance” mode of the terminal device 15, the product number of the reel 5 mounted on the cassette 6 is registered in a specific location of the component storage unit 2. ..

2) As shown in step 42, the terminal 1
In the "set product configuration file maintenance" mode 5, the data of the type and quantity of required electronic parts which differ depending on the type of the board to be produced is registered as the set product data.

3) As shown in step 43, the terminal 1
In the "stock file maintenance" mode of 5, the product number of the replenishment reel 5a is registered in a specific location of the parts storage unit 2. The last digit of the product number is added with R so that it can be distinguished from the reel 5 mounted on the cassette 6.

4) As shown in step 44, the terminal 1
In the "stock file maintenance" mode of 5, an empty cassette (cassette in which a reel of parts is not mounted) is registered in a specific location of the parts storage unit 2.

5) As shown in step 45, in the "reel part specification registration" mode of the host computer 14, the number of electronic parts contained in each reel whose product number is registered and the model of the cassette compatible with the reel. Enter.

(2) Preparation 2 ... FIG. 5 6) As shown in step 51, the reel 5 is loaded into the cassette 6
Attach to.

7) As shown in step 52, in the parts storage unit 2, each reel 5 mounted on the cassette 6 is loaded.
Scan the bar code above with a bar code scanner and enter the product number. The carrier 11 of the component storage unit 2 rotates and the storage position is indicated by a lamp. Further, the number of components on the reel 5 mounted in each cassette 6 is input from the ten-key pad of the component storage unit 2, and the cassette 6 is stored at a predetermined position as shown in FIG.

8) As shown in step 53, in the parts storage unit 2, the bar code on the reel of the replenishment reel 5a is read by the bar code scanner and the product number is input.
In addition, R is additionally input to the last digit of the product number to distinguish it from the product number of the reel 5 mounted on the cassette 6. The carrier 11 of the parts storage unit 2 rotates and is moved to the position indicated by the lamp as shown in FIG.
The replenishment reel 5a is accommodated as shown by.

9) As shown in step 54, in the parts storage unit 2, the empty cassette is stored in the same procedure as in steps 52 and 53.

(3) Operation ... FIG. 6 10) As shown in step 61, in the host computer 14, the set product number of the board to be produced and its production quantity are input. The set product data indicating the type and quantity of electronic components required according to the set product number is input in advance from the terminal 15 in step 42. Therefore, the host computer 14 immediately knows all types and quantities of electronic components required for production.

Further, in the warehousing process in steps 52 to 54, all types and quantities of electronic components stored in the component storage unit 2 are known.

Therefore, the host computer 14 can predict the shortage of parts based on the data of the parts required for production and the data of the stocked parts. That is,
If a prediction of production parts shortage is selected here, a parts shortage prediction list is output. This is to output the number of boards in which parts are out of stock in the order in which parts are out of stock quickly, and when the supply reel 5a is out of parts again, the number of shortage reels is displayed. The procedure for unloading the supplementary reel 5a for the missing parts is shown in and after step 71 shown in FIG.

11) As shown in step 62, in the parts storage unit 2, the set product number of the target board is input in the "delivery processing" mode. The position of the cassette 6 which the carrier 11 rotates and should be delivered is indicated by a lamp.

12) As shown in step 63, all the cassettes 6 designated in the shipping process are taken out from the component storage unit 2 and transported to the component mounting unit 3.

13) As shown in step 64, the cassette 6 having the reel 5 mounted thereon is set at the designated position of the component mounting portion 3.

14) As shown in step 65, the component mounting portion 3 is operated. The component mounting unit 3 counts the quantity used for each type of electronic component and holds it as inventory management information.

(4) Preparation of a cassette expected to run out of parts, replenishment of reels of missing parts ... (FIG. 7 15) As shown in step 71, the parts storage unit 2 makes a reservation call in the "outgoing process" mode. If you do, according to the order of the necessary product number etc. entered in advance,
The carrier 11 in which the supplementary reels 5a for the lacking components are stored is circulated to the take-out position.

16) As shown in step 72, the carrier 11 containing the empty cassette is brought to the take-out position by the confirmation key.

17) As shown in step 73, the taken-out replenishment reel 5a is mounted in the taken-out empty cassette, and is conveyed to the component mounting section to stand by. Steps 71-
Similar to 73, all reels 5 predicted to run out of components are sequentially mounted in the cassette 6 and are made to stand by at the component mounting portion. Replenishment is carried out for the reels 5 that run short.

(5) Dealing with out-of-parts ... FIG. 8 18) When the host computer 14 is set to the “out-of-parts monitoring” mode as shown in step 81, the parts placement section 3 automatically stopped due to the out-of-parts outputs an alarm. Then, the product number of the alarm is displayed on the display screen of the host computer 14.

Further, the limit number of parts is set in advance in the part mounting section 3, and when the quantity becomes less than that, the part mounting section 3 issues a part out alarm and the host computer 14
It is also possible to display an alarm on the display screen of.

19) As shown in step 82, when the component mounting portion 3 is stopped, as shown in step 73, the cassette 6 is exchanged for the standby cassette 6.

20) As shown in step 83, the quantity of electronic parts mounted in the replaced cassette 6 is entered in the quantity box of the parts missing cassette displayed in the "parts missing monitoring" mode of the host computer 14. To do.

In the case of a target product whose parts will run out again even after the supplementary reel 5a is attached, "pre-parts prediction again" is displayed on the display section of the host computer.

Also, the actual number of parts used at that time in the component mounting part 3 and the replenishment reel 5 of the replaced cassette 6
The number of parts included in a is summed, and this is updated as the latest inventory number. By such a resetting operation of the number of parts at the time of cassette replacement, it is possible to eliminate the cumulative error of the inventory data due to the variation in the number of parts in each reel.

21) As shown in step 84, the component mounting portion 3 is restarted.

(6) End of work ... FIG. 9 22) As shown in step 91, the set item name of the target substrate is input in the "set item batch shipping process" mode in the host computer 14. Outgoing processing is performed with the data of the actual number of uses sent from the component mounting unit 3, and the inventory data is updated. After that, the reading counter of the component mounting unit 3 is reset.

23) As shown in step 92, the cassette 6 is removed from the component mounting unit 3 and is carried to the component storage unit 2.

24) As shown in step 93, the bar code of the reel 5 mounted on the cassette 6 is read in the "storage process" mode in the component storage unit 2. Since the carrier 11 rotates and the return position is indicated by the lamp, the cassette 6 is stored in the designated location.

(7) Another Embodiment for Handling Out-of-Components As shown in step 73, all the reels 5 predicted to be out-of-component are placed in the cassette 6 in sequence and the replenishment reels 5a are placed on standby in the component mounting section 3. Instead of
It is also possible to input the position of the replenishment reel in advance to the cassette setting position of the component mounting portion 3 and set the replenishment cassette in which the component is expected to run out at that position. By doing so, when the component shortage as described in step 82 occurs, the component mounting portion 3 does not stop and automatically switches to the replenishment cassette to which the same electronic component is attached.

As described above, according to this embodiment,
In a component mounting apparatus that mounts components on a printed circuit board with reels 5 mounted on a cassette 6, it is possible to manage inventory efficiently with a large number of reels 5 and a large number of reels 5 mounted on a cassette 6 You can also make predictions. Further, the reel 5 and the reel 5 mounted on the cassette 6 can be mixed and managed in one component storage unit 2.

[0050]

According to the component mounting apparatus of the present invention, the stock status at the present time is determined from the data of the types and quantities of the components stored in the component storage unit and the data of the types and the quantities of the components used in the component mounting unit. Can be managed reliably. Moreover, if the data of the type and quantity of the product to be produced are given, it is possible to predict the shortage of parts.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a first embodiment.

FIG. 2 is a cross-sectional view of a component storage unit according to the first embodiment.

FIG. 3 is a carrier in the parts storage unit of the first embodiment,
It is a figure which shows the storage condition.

FIG. 4 is a flowchart showing a preparation stage of the first embodiment.

FIG. 5 is a flowchart showing a preparation stage of the first embodiment.

FIG. 6 is a flowchart showing an operating state of the first embodiment.

FIG. 7 is a flow chart showing the preparation of a parts outage prediction cassette in the first embodiment.

FIG. 8 is a flow chart showing a situation of dealing with a shortage of parts in the first embodiment.

FIG. 9 is a flowchart showing a procedure for ending work in the first embodiment.

[Explanation of symbols]

 1 component mounting device 2 component storage unit 3 component mounting unit 4 control unit

Claims (1)

[Claims] 1. A component storage unit for storing components, a component mounting unit for mounting the supplied components on a work, and data for the types and quantities of components required for mounting on the work, and the storage. From the data on the type and quantity of the parts stored in the parts and the data on the type and the quantity of the parts used in the parts mounting part, the types of the parts left in the parts storage part and / or the parts mounting part, and A component mounting device having a control unit for grasping data about quantity.