JP2832318B2 - Electronic package manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing an electronic package used for electric equipment.

[0002]

2. Description of the Related Art In recent years, in the production of electronic packages,
The user needs are shifting from the era of mass production to the era of diversification and even individualization along with lower prices and higher functionality of semiconductor elements and peripheral devices. In order to respond to these market needs, various products have been developed, and the production form thereof has also been increasing in the tendency for multi-product small-volume production. As a result, the weight of electronic packages in products has been increasing in terms of price and function.

FIG. 1 shows a shop for assembling an electronic package. As shown in FIG. 1, the main facilities in the shop are:
Electronic parts warehouse, automatic parts insertion machine, pre-installed parts assembly instruction machine,
It consists of a soldering device, a cleaning device, an aging device, and various testing machines. The arranged parts are stored in an electronic parts warehouse after acceptance inspection by a parts maker, and then delivered to an electronic package assembly shop based on a small production schedule. The electronic packages to be assembled are set on the transport rail one by one from the state of the printed circuit board, and necessary components are inserted in each component inserter based on the previously created insertion data. In such an automatic insertion line, a setup operation due to a type change of an electronic package to be produced frequently occurs, which has a great effect on a reduction in the operation rate of the line. In particular, component setup for supplying components to each automatic component insertion machine is a major factor.

[0004] In the conventional method, the component setup for inserting components of the automatic insertion machine is performed according to component setup arrangement information of NC data created in advance. In this case, every time the electronic package to be produced changes, the set-up arrangement of the components set in the component supply unit must be changed, so the number of types of electronic packages to be produced and the number of component types used for the same are reduced. As the number increases, the number of component setup steps increases in proportion. As a method of determining a part setup arrangement of several kinds of electronic packages to be automatically inserted as one group, in a method of obtaining an optimum solution from all combinations that can be set in an insertion machine, the number of combinations K is ( It is expressed by equation 1). In (Equation 1), N is the kind of parts that the inserter can supply, and A, B,..., Z are the electronic packages to be grouped.

[0005]

(Equation 1) Also, nA, nB,..., NZ indicate the respective component types of the package.

[0006]

However, (Equation 1)
However, the method for obtaining the optimal solution based on the method has a problem that the number of processes is enormous.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem. The electronic packages produced within a certain period are regarded as one group, and the frequency of use of the components used in each electronic package is grasped. Priority is assigned to parts with high production costs and the production order is changed to optimize the component setup arrangement.At the same time, the number of employees is added to the determined production order and component An object of the present invention is to provide an electronic package production device for giving an instruction.

[0008]

According to the present invention, there is provided an electronic package manufacturing apparatus for manufacturing a plurality of types of electronic packages, which is mounted on an automatic insertion machine.
Parts file for registering the parts
The number of packages, the parts file and the electronic package to be manufactured
Based on the number of packages and
The time to replace parts and the time to install parts
First working time and parts for manufacturing by other methods
The second work based on the sum of the replacement time and the time to install parts
Work time is calculated, and the first work time and the second work time are calculated.
A configuration is provided that includes a control device that compares the working time and selects a construction method with a short working time .

[0009]

[Function] When manufacturing multiple types of electronic packages
Replacement time and parts when manufacturing with an automatic insertion machine
The first work time, which is the sum of the
Replacement time when manufacturing by the method and when mounting parts
The second work time is calculated by the sum of the second work time and the first work time.
Of the working time and the second working time,
Since the method is selected , a more efficient production method can be determined.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a diagram showing a shop for assembling an electronic package, as described above, and includes an electronic parts warehouse, an automatic parts insertion machine, a pre-installed parts assembly instruction machine, a soldering apparatus, a cleaning apparatus, and an aging apparatus. And various testing machines.

FIG. 2 is a diagram schematically showing the configuration of the automatic component insertion machine. In FIG. 2, 31 is a printed circuit board into which various components are inserted, 32 is a printed circuit board 31 mounted thereon,
An XYθ table for moving and rotating the printed circuit board 31 in the X and Y directions, 33 is an insertion head for inserting electronic components into the printed circuit board 31, and 34 is an insertion head for inserting components in the insertion order. 33 is a loader for setting the printed circuit board 31 on the XYθ table 32, and 36 is an unloader for storing the printed circuit board 31 after automatic insertion. Further, the automatic component insertion machine is provided with the component supply unit 34 as described above. The component supply unit controls the components to be sent to the insertion head 33 in the insertion order, and the XYθ is controlled by the loader 35 by the loader 35. Automatic component insertion, such as control for setting on the table 32, control for moving and rotating the XYθ table 32 after setting the printed circuit board 31 on the XYθ table 32, and automatic insertion when the insertion position and the inserted component are synchronized. The entire machine is controlled.

Next, a description will be given of a setup operation for setting components in an automatic component insertion machine when producing an electronic package. FIGS. 3A and 3B are diagrams for explaining the outline of the setup work. In this description, it is assumed that the maximum number of component types that can be set in the automatic component insertion machine is four.

In FIG. 3A, PKG1 and PKG
2, and PKG3 indicate types of electronic packages to be produced, and IC1 to IC7 indicate component types necessary for producing PKG1 to PKG3. Here, the components required to produce PKG1 and PKG3 are IC1, IC2, IC3, and IC4, and the components required to produce PKG2 are IC
1, IC5, IC6, and IC7. Under these conditions, when producing electronic packages in the order of PKG1, PKG2, and PKG3, first, the IC is inserted into the automatic component insertion machine.
1, IC2, IC3, and IC4 are set, and other IC5, IC6, and IC7 are set-over parts.
Produces PKG1.

Next, the production of PKG1 is terminated and PKG2
When the production shifts to IC, IC5, IC3 instead of IC2, IC3 and IC4 set in the automatic component insertion machine
6, and IC7 are set. That is, the parts are rearranged three times to produce PKG2. Next, when the production of PKG2 is completed and PKG3 is produced, IC2, IC3 and IC4 are set instead of IC5, IC6 and IC7 set in the automatic component insertion machine. That is, the rearrangement of the components is performed three times again to produce PKG3. As described above, when electronic packages are produced in the order of PKG1, PKG2, and PKG3, a total of six component replacements are required.

FIG. 3B is a diagram for explaining a setup operation for producing electronic packages in the order of PKG1, PKG3, and PKG2 under the same conditions as those described above. First, IC1, IC2, IC
3 and IC4 are set, and PKG1 is produced.
Next, the process shifts to the production of PKG3. Since the components required for producing PKG3 are the same as those of PKG1, there is no need to rearrange the components here. When the production of PKG3 ends and the production of PKG2 is started, IC5, IC5 instead of IC2, IC3 and IC4
Set C6 and IC7 in the automatic component insertion machine. That is, the rearrangement of the components is performed three times in total. in this way,
When a plurality of types of electronic packages are produced by one automatic component insertion machine, the amount of setup work for component rearrangement differs depending on the production order.

Referring to FIGS. 4 (a), 4 (b) and 4 (c), a procedure for determining a production order when a plurality of types of electronic packages are produced by one automatic component insertion machine will be described. I will explain. As shown in FIGS. 4A and 4B, PKG
When 1, PKG2, and PKG3 are produced by one automatic component insertion machine, there are seven types of components used. Also, this automatic component insertion machine has four component types (component set station) that can be set, and the station can freely set components in a component set fixing section for fixedly setting components. It can be divided into a part set and a free part. Under these conditions, when four types of components are set in the automatic component insertion machine, the usage frequency (PKG1, PKG
2, the frequency of use in producing PKG3).

In the case shown in FIGS. 4A and 4B, IC1, IC2, IC3 and IC4 are set in the automatic component insertion machine, and IC5, IC6 and IC7 are set-over components. In this way, first, set parts are determined. Next, as shown in FIG. 4C, for each of the electronic packages, a set number of set parts for each electronic package, a "number of intersection parts", The “number of set-over parts types” other than the parts is obtained. Then, the production order of the electronic packages is determined based on the number of intersecting parts and the number of set-over parts determined for each electronic package.

Next, a method of determining the production order of electronic packages based on the number of types of interchanging parts and the number of types of set-over parts will be described with reference to FIG. In FIG. 5, there are five types of electronic packages to be produced, PKG1 to PKG5, and seven types of components, IC1 to IC7, necessary for producing those electronic packages. here,
As described above, components are set in the automatic component insertion machine in descending order of frequency of use, and the components to be set are set components (IC1 to IC4). Then, the “number of intersecting component types” and the “number of set-over component types” for the set component are obtained for each electronic package. Next, the electronic packages are sorted in ascending order of the obtained number of set-over component types. If the number of set-over parts is the same, electronic packages having the same set-over parts are sorted in descending order of the number of intersecting parts. The order sorted by these two conditions is referred to as the production order of the electronic package. That is, under the conditions shown in FIG. 5, the production order of the electronic package is P
KG2, PKG5, PKG4, PKG3, PKG1. As a result, the amount of setup work for rearranging components is significantly reduced, and production efficiency can be improved.

Hereinafter, more detailed processing and operations of the present invention will be described.

FIG. 6 is a diagram schematically showing the configuration of a manufacturing apparatus according to the present invention. As shown in the figure, the manufacturing apparatus includes an automatic component insertion machine 41 and a control device (for example, a personal computer set) 42 that manages information and the like of the automatic component insertion machine 41 and the electronic package produced by the automatic component insertion machine 41. It is configured.

FIG. 7 shows a manufacturing apparatus according to the present invention.
FIG. 4 is a diagram showing a flow of processes (steps) of processes and operations executed by a control device 42. In FIG. 7, first,
XY of the parts to be mounted for each board type information and electronic package
CAD data such as coordinates, an insertion angle, and an inserted part name are fetched (S501). Note that a part library such as a part shape and compatibility with an automatic insertion machine is registered in the control device 42 in advance (S502). Next, data in an intermediate data format for each electronic package is created based on the CAD data and the component library (S503). Here, the intermediate data refers to data that does not have the setup arrangement of the component to be inserted in the component supply arrangement to the component supply unit 34 of the automatic component insertion machine but has to the component name.

Next, the data in the intermediate data format is stored in an intermediate data file (S504). The control device 42 stores production technology information such as registration of fixed components to be inserted, restrictions on component supply units, and time required for mounting as component supply allocation files (S506).

When the type and the number of electronic packages to be produced are input to the control device 42 (S505), the parts are determined based on the input production electronic package information, the intermediate data file and the component supply allocation file. Processing such as deciding a component insertion procedure for minimizing the setup time, deciding a component setup arrangement to be supplied to the component supply unit 34, and automatically deleting data with low productivity in automatic insertion is performed (S507). ). By this processing, the format is converted into the automatic insertion database (S508), the component setup arrangement information is output (S509), and further information on the output of the raw data to be deleted in the automatic insertion and the instruction to another method such as manual insertion is provided. Is output (S510).

Next, the processing performed in S507 will be described with reference to FIG.
And a flowchart of FIG. First,
When an electronic package to be produced is input and an execution request is made, it is determined whether or not fixed supply parts have been selected and registered. (S101). Here, the fixed supply component is selected and registered, and stored in the component supply unit allocation file (S506). First, for example, FIG.
As shown in the table, the type of electronic package to be produced is listed up according to a one-month schedule, and a table 62 for comparing the number of times of use is created from a component use frequency calculation table 61 for calculating the component use frequency. Then, the registration table 63 is created with the parts frequently used as fixed supply parts.

This process may be automatically performed inside the control device 42. However, the process is selected by a computer that manages a production plan, and the result of the selection is input to the control device 42. Is also good.

Next, the control unit 42 groups the electronic packages to be produced into electronic packages having the same width in the transport direction (S104). The method is shown in FIG.
As shown in (1), electronic packages having the same width in the transport direction are grouped, and an electronic package is produced for each grouping. This is because, as shown in FIG. 11B, every time the width of the electronic package changes, the rail width of the loader and the underloader, the rail width of the XYθ table, and the width of the board storage rack need to be changed. This is because, by producing electronic packages of different widths, a setup operation for changing the width of the automatic component insertion machine is reduced.

Next, the control unit 42 selects a component to be set in the free supply unit in the component supply unit 34. (S
105). In this process, as shown in FIG. 12, a set (component free supply unit set component 82) in which a predetermined component fixed supply component 83 is removed from the total used component type 81 used by the electronic package to be produced is generated. Is what you do. Next, the control device 42 determines whether or not all the component free supply set components 82 can be set in the free supply unit of the automatic component insertion machine (S106). In other words, when the relationship of the number of free supply parts of the automatic component insertion machine ≧ the type of parts set in the free part supply section is established, all of the total used part types 81 can be simultaneously set in the part supply section 34, so that the insertion in the previous stage is performed. Is completed, comparison and collation are performed with the set component to determine the component setup arrangement (S109).

On the other hand, if the above relationship is not established, a primary selection to be set in the free supply unit is performed to determine a loading order (S107), and a part arrangement is determined (S108).
That is, for example, as shown in FIG.
Among the components set in the component free supply unit selected in step 5, sorting is performed in the order of the number of times of use, and the frame of the component free supply unit of the automatic insertion machine is selected with the number of times of use. The set of components selected at this time is X (FIG. 13A). Next, the number of set-over parts between the electronic packages A, B, C, D, E to be inserted and the parts set X is determined, and the order of insertion is set in ascending order of the number of set-over parts. At this time, if the number of set-over parts is the same, the number of intersecting parts with the parts set X is obtained, and the case where the number of intersecting parts is high is prioritized to determine the final input order. The definition of the number of set-over parts and the number of intersecting parts described here will be described using the electronic package A. FIG. 13C illustrates the definition. That is, the component set X and the electronic package A
And the number Hd (Equation 2).

[0030]

(Equation 2) The number Hc of intersections between the component set X and the electronic package A is represented by (Equation 3).

[0031]

(Equation 3) In (Equation 3), Hd and Hc indicate the number of components included.

In this manner, the number of set-over parts and the number of parts are determined for each electronic package. FIG.
The set-over component type calculation table 91 in (d) shows the set-over component type H under the conditions shown in FIG.
The results obtained by calculating the number of component types Hc intersecting with d are shown. Then, sorting is performed according to the above-described procedure, and the input order is determined. This is shown in the insertion order calculation table 92 of FIG. As a result, the input order is set to B, E, D, C, and A.

Next, a hierarchy level is assigned to the input order determined in the previous step. This determines the component arrangement of set-over components that cannot be accommodated in the component free supply unit of the automatic component insertion machine, although the order of input and the arrangement of the components used are as shown in FIG. . The determination procedure will be described. First, the components (component set X) selected in the previous step and the set-over components are classified, and the number of distances is determined in each hierarchy (input procedure). The number of distances described here is defined as follows. With respect to the set-over component, in each hierarchy, the hierarchy of use start is taken, and the number of hierarchies used continuously is defined as the number of distances Fd. In other words, taking the component pf6 as an example, the distance Fd is 2 starting from the hierarchy 4. Further, with respect to the components of the component set X, the number of hierarchies in which the components are not continuously used in each hierarchy is defined as a distance number Kd. If this is explained using the component pf3 as an example, the number of distances Kd in the hierarchy 4 is 2. In order to determine the component setup arrangement, Fd and Kd are determined in the order of the closest approximation for each layer on condition that (Equation 4) is satisfied.

[0034]

(Equation 4) In the case of the state shown in FIG. 14A, the setup arrangement of the parts determined in this determination procedure is shown in FIG. In FIG. 14B, pf8 is forcibly set to a fixed supply position where the automatic component insertion machine is in an unused state. As described above, when the arrangement order of the parts is determined,
The control device 42 compares and collates with the component arranged when the insertion is completed in the previous stage, and determines the final component setup arrangement (S109). That is, as shown in FIG.
The part which needs to be set in the hierarchy 1 (input procedure 1) is compared with the part which is set in the automatic component insertion machine, a part which needs to be rearranged is detected, and information for instructing the part rearrangement is provided. 111 is displayed or printed out. Further, based on the collation result, as shown in FIG. 15B, the determination result of the component setup arrangement of the layers 2 to 5 (input procedures 2 to 5) is output (displayed or printed out). By the above processing, the input order and the component setup arrangement are determined.

Next, a comparison is made between the mounting time of the automatic insertion machine and the mounting time when the processing is performed by another mounting method.
In the case of small-volume production, it takes a lot of setup time due to product type switching, and the component mounting method by automatic insertion is not always higher in productivity than other mounting methods. FIGS. 16A and 16B are graphs showing the mounting time between the automatic insertion and another method.
This determination is made in two stages for each component type and each production electronic package. In the first stage, as shown in FIG. 16A, the number of mounting points is determined from the number of products input in S103 in FIG. 8 for the component type requiring component setup determined in S109 in FIG. In this case, the mounting time including the component setup time is obtained (S110). Further, as shown in the flowchart of FIG. 9, the mounting time including the component setup time in the case of a method other than the automatic insertion machine is obtained (S11).
1).

Next, the mounting time of the automatic insertion machine is compared with the mounting time of another method (S112). If the mounting time in the automatic insertion machine is long, the data of the corresponding component is deleted, and the deleted content is stored in the memory of the control device 42 (S11).
3). If the mounting time in the automatic insertion machine is shorter than that of other methods, the process proceeds to the second stage. That is, in the second stage, as shown in FIG. 16B, the setup time in switching the type of the electronic package, that is, as shown in FIG. 11B, the loader, the unloader, the rail width of the XYθ table,
This includes the change of the width of the board storage rack and the component changeover time excluding the components deleted in the first stage, and S103 in FIG.
Based on the number of productions input in (1), the mounting time for which the number of mounting points is calculated is calculated for each electronic package in the case of automatic insertion and in the case of another method (S114, S115).

Then, a comparison is made between the mounting time implemented by the automatic insertion machine and the mounting time implemented by another method (S1).
16) If the mounting time in the automatic insertion machine is long, data deletion and an instruction to another method are performed (S117). If the mounting time in the automatic insertion machine is shorter, the final component setup arrangement is determined, and an instruction to change the component setup arrangement is issued (S11).
8). Further, an instruction is given to make the part corresponding to the deleted data determined by the part type work by another method (S
119).

In S117, since the database required for calculating the mounting time is held in the step of S506 in FIG. 7, the calculation is performed using this database.

The data of the electronic package deleted in the second stage is compared with the data of the component type deleted in the first stage, and the final component setup arrangement information is output as described above (see FIG. 7, In step S509, output of the deletion data in the automatic insertion and the instruction to the alternative method are performed (FIG. 7, S510).
Further, the determined information of the component setup is converted into an output format of the automatic insertion database that can be recognized by the automatic component insertion machine (S508 in FIG. 7), and the converted information is transferred to the automatic component insertion machine. Then, the automatic component insertion machine operates according to the received information on the component setup.

If such processing is performed by a central controller (such as a host computer) that manages the entire CIM system, the type of electronic package to be produced and the like are input to the central controller so that long-term production planning can be performed. In addition, it is possible to determine more efficient production priorities from various production plans such as a medium-term production plan, and also to easily and systematically process parts storage from an electronic parts warehouse.

[0041]

As is apparent from the above embodiment, according to the present invention, an efficient setup work procedure can be easily obtained, and the work efficiency can be improved and the quality can be reduced by reducing the setup work. Can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a production line for an electronic package.

FIG. 2 is a diagram showing a configuration of an automatic component insertion machine.

FIGS. 3A and 3B are diagrams showing an outline of a setup operation.

4 (a) to (c) is a diagram showing an outline of procedures defining a fabrication sequence.

FIG. 5 is a diagram showing an outline of a procedure for determining a manufacturing order.

FIG. 6 is a diagram showing a configuration of a manufacturing apparatus according to the present invention.

FIG. 7 is a flowchart showing processing and operation of the manufacturing apparatus according to the present invention.

FIG. 8 is a flowchart (part 1) for determining a production order in the manufacturing apparatus according to the present invention.

FIG. 9 is a flowchart (part 2) for determining a production order in the manufacturing apparatus according to the present invention.

FIG. 10 is step S1 in the flowchart of FIG. 8;
FIG. 22 is a diagram showing a process 02.

FIGS. 11A and 11B are diagrams showing the processing in step S103 of the flowchart in FIG.

FIG. 12 is a diagram showing processing in step S104 of the flowchart in FIG. 8;

FIGS. 13A to 13D are diagrams showing the processing of step S106 in the flowchart of FIG. 8;

FIGS. 14A and 14B are diagrams showing the processing of step S107 in the flowchart of FIG. 8;

FIGS. 15A and 15B are diagrams showing the processing of step S107 in the flowchart of FIG. 1;

FIGS. 16 (a) and (b) are graphs showing a comparison of mounting time between automatic insertion and another method.

[Explanation of symbols]

 31 substrate 32 XYθ table 33 insertion head 34 component supply unit 35 loader 36 unloader 41 automatic component insertion machine 42 control device

Claims (2)

(57) [Claims] An electronic package manufacturing apparatus for manufacturing a plurality of types of electronic packages, wherein a part file for registering parts mounted on an automatic insertion machine is provided.
And the number of electronic packages to be manufactured
Based on the number of electronic packages to be manufactured
Parts replacement time and parts loading when manufacturing with an automatic insertion machine
The first working time by the sum of the wearing time and the other method
Replacement time for parts and time to install parts when manufacturing
And the second work time is calculated by the sum of
The time is compared with the second work time, and the work time is short.
An electronic package manufacturing device, comprising: a control device for selecting a method of construction . 2. The control device is manufactured by the automatic insertion machine.
Replacement time and the time to install parts
The first working time and the parts removal when manufacturing by another method
Second work based on the sum of the replacement time and the time to mount the parts
Time and calculate the first work time and the second work
When the second work time is short as a result of comparing the
In this case, the data relating to the first working time is deleted,
2. The method according to claim 1, wherein instructions are given to another method.
Manufacturing device for an electronic package.