JPH06196899A - NC data generation device in printed circuit board component mounting system - Google Patents

Abstract

(57) [Summary] [Purpose] Multiple onboard machines M controlled by NC data
It is an object of the present invention to provide an NC data generating device capable of improving productivity as a whole by distributing loads of respective mounting machines in a component mounting system including multiple types of printed circuit boards for mixed production. [Structure] The product includes finish state information 1 for each product, capability information 2 for each facility, parts information 3, etc. When the product, the number of sheets and the facility are specified at the time of production, the selection means 11 selects the facility that can be dimensionally compatible. The allocating means 12 distributes the parts so that the load is uniform among the respective equipments, the dividing means 13 determines a lot as a transport unit, and the simulation means 14 simulatively inputs the lots into each equipment to minimize the load. Derivation of the arrival procedure number,
Based on these, the NC data generating means 15 is a device for automatically generating NC data for each onboard machine M.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a print provided with a plurality of mounting machines (mounters) for automatically mounting (mounting) various electronic components on a printed circuit board according to NC (numerical control) data input. The present invention relates to a board component mounting system.

[0002] In a system in which a large number of different types of printed circuit boards are produced in a mixed flow using a plurality of automatic component mounting machines having different capabilities, performances, constraints, etc., each mounting machine is operated efficiently. Therefore, it is desired to improve the productivity of the entire system.

[0003]

2. Description of the Related Art FIG. 14 is an explanatory view of a conventional component mounting system for a printed circuit board. In the figure, M (M ₁ ,
M ₂ and M ₃ ) are a plurality of mounting machines (mounters) arranged in the factory. Each mounting machine M includes an input unit 31 and a control unit (not shown). The control means controls the operation of the mounting machine M based on the NC data manually input by the operator using the input means 31. Each mounted machine M
Has a plurality of parts set parts that are pre-loaded with a plurality of different kinds of parts to be mounted on the board for each part type (symbols identifying the same parts, etc.). The respective assigned parts are preset by the operator.

The NC data to be input to each mounting machine M includes, in advance, the part type of the part in charge of the corresponding mounting machine M, the position / posture of the parts set, and the setting position / posture of the mounted substrate on the mounting machine. It is decided in advance, and according to the absolute coordinate system of the mounting machine M, the mounting position (X, Y coordinates), the component take-out position (component set position), the mounting direction, the mounting method (mounting speed, mounting height, ...).
It is general that the operator directly inputs, etc., using the corresponding input means 31, using the corresponding code.

Here, for example, the printed circuit boards to be manufactured are products A, B, and C. In product A, there are 5 parts A, 10 D, 10 E, 5 G, and 5 B. Parts a is 1
0 pieces, 10 pieces of c, 5 pieces of e, 5 pieces of chi, 5 pieces of parts C, 10 pieces of parts b, 10 pieces of e, 20 pieces of chi, 20 pieces of re,
Assuming that they are mounted, the operator first assigns the parts to be assigned to the respective mounting machines M ₁ , M ₂ , and M ₃ (here, in the order of the part model numbers, the mounting machines M ₁ have the parts a, b, C, the mounter M ₂ is assigned parts D and E, and the mounting machine M ₃ is assigned parts G, C, and R).

[0006] The operator then each mounting machine M _1,
For each of M ₂ and M ₃ , NC data of each product A, B and C is manually input using the input means 31 of each of the mounted machines M ₁ , M ₂ and M ₃ , and each mounted machine M is input. Start ₁ , M ₂ and M ₃ . For example, in the case of products A, is conveyed to the mounting machine M ₂ after first with mounting machine M ₁ five components b mounted, ten parts two and 10 parts E with mounting machine M ₂ is mounted is conveyed to the mounting machine M ₃ after the five component pickup is mounted in mounting machine M _3, mounting is completed.

Focusing on the mounting machine M ₁ , after mounting component A on product A, component B and component C are mounted on product B, and then component B is mounted on product C.

[0008]

However, since the on-board machines constituting the system do not always have the same capability, it is necessary to manually create NC data and assign parts to be in charge of each on-board machine. It is very complicated and requires a high degree of special skill and long time. Therefore, there is no choice but to adopt the above-mentioned simple method for parts sharing, and in this case, the load is concentrated on a part of the mounted machines, and until the work on the part of the mounted machines is completed, There was a problem that the other onboard machines were in a waiting state and the overall productivity was very low.

Further, if any of the mounted machines fails during system operation, it is necessary to substitute the parts shared by the mounted machines for the other mounted machines. In this case, the balance between the respective mounted machines is required. There was a problem that the NC data had to be completely recreated in consideration.

Further, when all the parts set positions of the mounting machine are filled with the parts in the mounting work up to the previous time, if a part of a model not set is set, the parts are already set. Although it is necessary to remove any one of the parts, it is very difficult to determine which one to remove, and there is a problem that a leak or an error may occur.

There is also a problem in that a component having a relatively high frequency of use may be removed from the component setting position, which causes a large number of component replacements and is inefficient. Further, the transfer of the mounted substrates between the respective mounting machines and the carrying in / out of the respective mounted machines are carried out in units of a lot composed of a plurality of mounted substrates, but when the number of the mounted substrates constituting one lot is large. If the components have not been mounted on all the boards in one lot, they will not be transferred to another mounting machine or the like, and the waiting time will increase, and the quality will deteriorate due to moisture absorption and hardening of the solder cream.

Further, depending on the loading order (arrival sequence number) of each product to each mounting machine, there may be a mounting machine waiting for a lot even though there is a lot waiting for mounting, which is inefficient. was there.

The present invention has been made in view of the above points, and an object of the present invention is to improve the productivity of the entire system in a component mounting system for a printed circuit board including a plurality of mounting machines. It is to plan.

[0014]

In order to achieve the above-mentioned object, a plurality of mounting machines (M) for automatically mounting various parts on a mounting board based on inputted NC data are provided, and a group of mounting machines is provided. Provided is an NC data generating device as shown in FIG. 1 in a component mounting system for a printed circuit board, which is processed in units of lots of mounting boards.

This device includes a product file 1, an equipment file 2, a parts file 3, a route file 4, a production file 5, a planing file 6, a set file 7, a parts placement file 8, a parts usage frequency file 9, and a selection means 11. ,
Sorting means 12, dividing means 13, simulation means 1
4, NC data generating means 15, exchange instruction means 16 and rearrangement means 17.

In the product file 1, information indicating the final finished state including the board size corresponding to the board product number, the part type of each part to be mounted on the board, and the mounting position on the board. (Product information) is set in advance.

In the equipment file 2, information regarding the capacity of the mounting machine M (maximum coping size, coping type of coping type, coping speed of coping type corresponding to the equipment number of the mounting machine M) (capacity information) ) Is preset.

In the component file 3, component information including a component type, a mounting speed, and a mounting method is set in advance corresponding to the component type. In the route file 4, some combinations of the respective pre-defined mounting machines M are preset corresponding to the route names.

In the production file 5, the product number of the board to be manufactured, the number of boards to be produced and the route name are designated and set at the start of processing. In the planing file 6, the offset value between the reference of the board when the board is placed on the mounting machine M and the reference of the mounting machine is preset corresponding to the product number of each board to be manufactured. .

In the component placement file 8, the loading positions of the components already loaded in the respective mounting machines M and the component type numbers loaded at the loading positions are set in correspondence with the equipment numbers. In the parts usage frequency file 9, each mounting machine M is associated with the equipment number.
The frequency of use of the parts already loaded in is set.

The selecting means 11 selects a mounting machine M which can be dimensionally compatible, based on the product file 1, the equipment file 2, the route file 4 and the production file 5. The distribution unit 12 equalizes the processing time of each mounting machine M with respect to the mounting machine M selected by the selection unit 11 based on the product file 1, the equipment file 2, the component file 3, and the production file 5. In addition, the component type to be in charge of each mounting machine M is distributed so as to match the capability of each mounting machine M.

The dividing means 13 adds up the corresponding number of products to be produced in the production file 5 to the processing time required for each of the mounting machines M,
When it is smaller than a predetermined reference value, it is treated as a single lot, and when it is larger, the number of products to be produced is divided into a plurality of lots so as to be less than the reference value.

The simulation means 14 is the distribution means 1
According to the part allocation according to 2, the simulation is performed while changing the dressing procedure number for each lot to derive the dressing procedure number that provides the shortest processing time.

The NC data generation means 15 is a distribution means 12
NC data for each mounting machine M is generated on the basis of the component sharing by the device, the arrival procedure number by the simulation means 14, the product file 1, the component file 3, and the planing file 6.

The replacement instructing means 16 extracts the part type of the part to be newly loaded in the mounting machine M based on the NC data output from the NC data generating means 15 and the part placement file 8 and outputs the part usage frequency file. 9, an instruction is issued to replace the least frequently used component with a new component, and after the instruction, the component placement file 8 and the component usage frequency file 9 are updated.

The sorting means 17 is the NC data generating means 15
Based on the NC data and the component placement file 8 which is the output of, the component mounting order of the NC data is rearranged so that the time required for mounting all the components to be mounted is minimized,
Send to each mounted machine M.

The set file 7, the parts placement file 8, the parts usage frequency file 9 and the replacement instruction means 1 are used.
6 and the rearrangement means 17 can be provided as needed. When the set file 7 is provided, the distribution means 12 is provided.
Refers to the set file 7 and preferentially handles the part type set in the set file 7. When the rearrangement means 17 is not provided, the NC data generation means 1
The output of 5 is sent directly to each onboard machine M.

[0028]

When the operator starts manufacturing, the operator first specifies the product name of each printed circuit board to be manufactured (component mounting), the number of each product to be produced, and the route name based on the operable equipment. File 5
Is set to.

Next, when the apparatus is activated, the selection means 11 reads the corresponding product information (product size etc.) from the product file 1 based on the product number in the production file 5. Then, based on the route name in the production file 5, the corresponding equipment number is read from the route file 4, and the equipment information (the maximum size that can be dealt with) for the corresponding mounting machine M in the equipment file 2 is read in The compatible mounting machine M is selected and sent to the distribution means 12.

The allocating means 12 reads corresponding product information (part type number of each part to be mounted) from the product file 1 based on the product number in the production file 5, and the number of parts for each part type number. Is counted. Next, referring to the component file 3, the component information (component type, mounting speed, etc.) for each component type is read, and per component calculated from the mounting speed corresponding to the number of components for each component type. The time required for mounting (processing time) is integrated to obtain the cumulative processing time for each part type.

Then, for each mounting machine M selected by the selecting means 11, corresponding equipment information (type of coping parts, coping speed of coping, etc.) is read from the equipment file 2 and the parts read from this and the parts file 3. Mounted machine M that can handle by comparing information (type of parts, mounting speed, etc.)
After selecting, the component type to be assigned is distributed to each mounting machine M and sent to the simulation means 13 so that the cumulative machining time in each mounting machine M becomes as uniform as possible.

The distribution means 12 uses the set file 7
If the set information is provided, the set information is referred to and the parts already loaded in the mounting machine M are preferentially distributed so that the number of replacements of the parts loaded in the mounting machine M is reduced as much as possible. Can be achieved.

The dividing means 13 adds the cumulative machining time for each component type to the component type assigned to each mounting machine by the allocating means 12, and adds the accumulated number of production times in the production file 5 to this. If this value is smaller than the predetermined reference value, the production number is set as one lot, and if it is larger than the reference value, the production number is divided so as to be less than or equal to the reference value. Then, a plurality of lots are made and the fact is sent to the simulation means 14.

The simulation means 14 is the distribution means 1
According to the parts allocation for each mounting machine M according to 2, the simulation is performed for each lot sent from the dividing means 13 while changing the arrival procedure number for each lot.
Derive the dressing procedure number that will provide the shortest processing time. In addition,
This simulation may need to be performed for a huge number of combinations, but in this case, it is advisable to employ a simple method as appropriate to improve efficiency.

The NC data generation means 15 is the distribution means 12
Parts allocation of each mounting machine M, simulation means 1
4, the order number, product file 1, parts file 3,
And, based on the planing file 6, NC data for each mounting machine M is generated, and the replacement instruction means 16 and the rearrangement means 1 are generated.
If 7 is provided, it is sent to the replacement instructing means 16 and the rearranging means 17, and if it is not provided, it is sent to each onboard machine M.

The exchange instructing means 16 indicates the component type of the component required for mounting in the NC data by the NC data generating means 15 and the component type of the component already set in the mounting machine M in the component placement file 8. And the part type to be newly loaded on the mounting machine M is extracted.

Then, referring to the component usage frequency file 9, the least frequently used component is extracted from the components loaded in the mounting machine M and not used in this manufacturing, and the extracted component is loaded at the loading position. And instruct the operator to load new parts into it,
After the instruction, the component placement file 8 and the component usage frequency file 9 are updated.

The sorting means 17 is the NC data generating means 15
The NC data component mounting order is rearranged based on the component setting position of the component placement file 8 so that the required mounting time per mounting board on the mounting machine is minimized. And sends it to each onboard machine M.

Each mounted machine M has an NC data generating means 15
(If the sorting means 17 is provided, the sorting means 1
Based on the NC data from 7), the component in charge is mounted on the mounted substrate that is loaded in lot units.

According to the present invention, the operator only needs to specify the product number, the number of products to be produced, and the route name of each printed circuit board to be manufactured when the system is started up, and the NC data for each mounted machine is automatically generated. Even people who do not have special skills can easily work and improve productivity.

Since the NC data for each mounted machine takes into consideration the capability of each mounted machine that constitutes the system and parts are allocated so that the processing time in each mounted machine is approximately uniform, Until the work of the on-board machine of some part is completed, other on-board machines are less likely to be in a waiting state, and the productivity of the entire system can be improved.

Further, if any of the mounted machines fails during system operation, it is necessary to substitute the parts shared by the mounted machines for the other mounted machines. In this case as well, the balance between the mounted machines is high. Since the NC data in consideration of is quickly generated, recovery is quick and efficient.

Then, the number of the substrates to be mounted constituting the lot, which is a unit for carrying between the respective mounting machines and carrying in / out the respective mounting machines, becomes appropriate, and deterioration of quality due to moisture absorption / curing of the solder cream is prevented. .

Further, since the arrival procedure number that requires the least amount of time is derived by the simulation means, it is possible to reduce the number of loading machines that are waiting for lots even though there are lots waiting for loading.

Further, when all the parts set positions of the mounting machine are filled with the parts in the mounting work up to the previous time and it is necessary to replace the set parts, the replacement instructing means 16 gives an instruction. Therefore, the operator only has to carry out the replacement work of the parts in accordance with this, and the leakage and the error are less likely to occur.

Further, by rearranging the component mounting order by the rearranging means 17, the time required for mounting per substrate is shortened. Therefore, the productivity of the entire system can be significantly improved.

[0047]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 2 is a diagram showing the overall configuration of a printed circuit board component mounting system according to an embodiment of the present invention.

In the figure, M (M ₁ , M ₂ , M ₃ ) is a plurality of automatic component mounting machines (mounters) constituting this system, and each mounting machine M is controlled although not shown. Equipped with means. In addition, each installed machine M has a personal computer 2
1 is attached, and the control means controls the operation of the mounting machine M based on the NC data sent from the personal computer 21.

Although not shown, the respective mounting machines M are communicated with each other by an automatic transfer device, and the mounted boards are arranged in lot units (consisting of a group of mounted boards) between the mounting machines M. It is designed to be transported.

Reference numeral 22 is a data processing device, and the data processing device 22 is a device for supplying the prototype NC data, which is the basis of the NC data, to the personal computer 21 of each on-board machine M. It is connected by a communication line (transmission line).

The data processing device 22 comprises an input means 23 and a storage means, and the storage means has a product (product specification) file 1, an equipment file 2, a parts file 3, a route file 4, which will be described below. The production file 5, the planing file 6 and the set file 7 are stored in advance or input from the input means 23 when the system is started and stored.

As shown in FIG. 3, the product file 1 has a board size (maximum size X,
Y), design standard, part number, part type, mounting surface (L1:
Front surface, Ln: back surface, mounting position and mounting direction (coordinates X ₁ , Y ₁ , X ₂ , Y ₂ with reference to the coordinate system specific to the board)
The information indicating the final finished state including is a preset file.

As shown in FIG. 4, the equipment file 2 corresponds to the equipment number (the number of the mounted machine), the maximum mountable size (X, Y) of the mounted machine, the shape of the manageable part (chip, SOP). , QFP, PLCC, SOJ, etc.) and equipment information including the maximum component mounting speed according to each mounting surface are stored in advance.

As shown in FIG. 5, the part file 3 corresponds to the part type, design standard, part shape (chip, SOP, QFP, PLCC, SOJ, etc.), part size (size), center offset. It is a file in which component information including (X, Y), a mounting speed corresponding to each mounting surface, and a handling method (coating amount, coating point, interval, mounting direction, coating method, etc.) is stored in advance.

As shown in FIG. 6, the route file 4 corresponds to the route names (A, B, C, ...) And the passing equipment numbers (up to the completion of mounting of the mounted printed circuit board) corresponding to each mounting surface. Is a number of one or a plurality of on-board machines existing in the route to be passed through and is defined in advance in consideration of the capacity of each on-board machine).

As shown in FIG. 7, the production file 5 corresponds to the product number of the printed circuit board to be produced (for example, to be produced on that day in the factory), the number of produced sheets, and the route name in charge of production. Is a file to which production information consisting of is set, and this production information is input and set by the operator using the input means 23 at the start of production (for example, early morning).

As shown in FIG. 8, the board cutting file 6 is a file in which the offset value between the machine coordinate system of each mounting machine and the coordinate system of the printed circuit board is preset in correspondence with the product number. When two or more printed circuit boards are simultaneously mounted by one mounting machine, each offset value is set according to each individual piece.

In the set file 7, as shown in FIG. 9, the part types of all the parts already set at the parts set position of the mounting machine are set corresponding to the equipment numbers of the respective mounting machines. It is a file.

Further, a component placement file (8) and a component usage frequency file (9) are set in each storage means provided in the personal computer 21 of each mounting machine M. As shown in FIG. 10, the component placement file (8) is a file in which the component type set in the component setting position is set for each equipment number of each mounting machine.

As shown in FIG. 11, the parts usage frequency file (9) corresponds to the parts type numbers set at the parts setting positions for each equipment number of each mounting machine.
It is a file in which the usage frequency and the last usage date of the part are set.

The processing of the data processing device 22 will be described in detail below. Step 1: When the operator uses the input means 23 to specify the product number of the printed circuit board to be manufactured, the number of products to be produced and the route name, these information are set in the production file 5. The data processing device 22 first reads the production file 5, refers to the product file 1 for one of all products to be produced, and cumulatively calculates the number of parts for each component type for each mounting surface. Read the maximum dimensions of the product. Next, the equipment file 2 is referred to via the route file 4, and equipment that is dimensionally compatible is selected.

Step 2: With respect to the equipment which can be selected in terms of dimensions, the mounting times of the mounting machines M ₁ , M ₂ and M ₃ are made uniform, and each mounting machine is referred to by referring to the equipment file 2. The components to be assigned to the respective mounting machines M ₁ , M ₂ , M ₃ are distributed so as to match the capabilities of M ₁ , M ₂ , M ₃ (shapes of components that can be handled, etc.). At this time, referring to the set file 7, for the parts already set in the respective mounting machines M ₁ , M ₂ and M ₃ , the parts are preferentially distributed to the mounting machines unless there is a problem. As a result, the frequency of exchanging the set parts can be reduced.

Step 3: For all products set in the production file 5, the processes of Step 1 and Step 2 are repeated. Step 4: The production number in the production file 5 is added to the machining time required for each mounting surface of each mounting machine M ₁ , M ₂ , M ₃ ,
When the accumulated time exceeds a predetermined reference value (constant value), the number of produced sheets is divided so as to be the reference value or less. Each of these divided pieces is called a lot formation, and serves as a transportation unit among the respective mounting machines M ₁ , M ₂ , and M ₃ .
The purpose of the division is to prevent the deterioration of the quality of the solder cream due to moisture absorption and hardening after a certain period of time, and to prevent this.

Step 5: Next, assuming that production is to be started on a lot-organization basis, each mounting machine M ₁ , M ₂ , M ₃ is simulated on a lot-by-lot basis, and the total required time is calculated. Carry out all combinations and select the arrival procedure number that requires the least total time.

If there is too much difference between the total required time and the net machining time (the theoretically calculated machining time of each mounting machine), the process returns to step 2 to change the parts allocation and start over. The total required time for all of the above combinations may be enormous, so in such a case, an appropriate thinning method (eg, SPT: short processing time method, etc.) ) Can be used.

Step 6: If the arrival procedure number that minimizes the total required time is selected, the parts allocation at that time refers to the product file 1, the parts file 3 and the planing file 6, and each mounting machine M ₁ , M ₂ and M ₃ prototype NC data are created. This prototype NC data is, as shown in FIG. 11, a product number, a mounting surface, a mounting position (X, Y coordinates in the machine coordinate system of the mounting machine converted by the corresponding offset value of the planing file 6), mounting Control code,
Dispensing control code, mounting direction code, dispensing direction code, part type, part number, individual number (identification number of each board when arranging multiple boards at the same time on one mounting machine), part information (number of coating points, The data consists of the coating interval, etc.). However, at this stage, the set positions of the components in the mounting machines M ₁ , M ₂ , and M ₃ and the mounting order have not been determined.

Step 7: This original NC data is a transmission line
Each mounted machine M via₁, M₂, M ₃PC attached to
21 is transmitted. Step 8: In each PC 21, data processing equipment
Prototype NC data transmitted from the device 22 and the personal computer 21
In the component placement file (8) set in the storage means of
Based on the current installed machine M₁, M₂, M₃Parts of
Part type and new mounting of the parts loaded in the shut position
Compare the part type numbers of the parts required for
Derive the part type number of the part that needs to be newly set
It

Next, referring to the component usage frequency file (9) set in the storage means of the personal computer 21, among the components not used in the component mounting work this time, the frequency of use is the lowest or the period of non-use is the lowest. The longest part is obtained, the part at the set position is removed, and a part replacement table is printed and displayed instructing that the part that needs to be newly set be set at the set position.

Thereafter, each personal computer 21 has its own component placement file (8) and component usage frequency file (9).
To update. While looking at this parts replacement table, the operator
The parts at the parts set positions corresponding to the mounting machines M ₁ , M ₂ and M ₃ are replaced.

Step 9: Next, the personal computer 21 sets the component mounting order of the original NC data from the data processing device 22 to the highest mounting efficiency according to the capability of the mounting machine, according to the component layout of the component layout file (8). The data is rearranged so that NC data as shown in FIG. 13 is created.

For example, in a mounting machine of a type in which the parts set position of the mounting machine moves, it is quick to carry out the parts mounting work in the order of setting the parts, so rearrange the parts in such a manner.
When a plurality of components having the same component type are discretely mounted on a mounting substrate, one axis is divided into zones and the zones are rearranged in such an order that the other axis reciprocates for each zone. For example, when the type of parts being mounted changes, the parts are rearranged so that they are mounted from the position closest to the current position.

Step 10: Each personal computer 21 mounts the NC data, whose rearrangement has been completed, on the corresponding mounting machines M ₁ , M ₂ , M
₃ and each onboard machine M ₁ , M ₂ , M ₃ has its own NC
Parts are mounted on the mounted printed circuit boards in lot units that are controlled and carried in according to the data. According to this embodiment, the operator only needs to specify the product number, the number of sheets, and the route name of each printed circuit board to be manufactured when the system is started up, and the NC data for each mounted machine is automatically generated. Even people who do not have it can work easily.

The NC data for each mounted machine considers the capacity of each mounted machine that constitutes the system, and the parts are distributed so that the load on each mounted machine is substantially uniform. Until the work on the onboard machine is completed, other onboard machines are less likely to be in a waiting state, and the productivity of the entire system can be improved. For example, the component sharing illustrated in FIG.
As shown in FIG. 2, it can be seen that the load is evenly distributed among the respective mounted machines M.

Further, if any of the mounted machines fails during system operation, it is necessary to substitute the parts shared by the mounted machines for the other mounted machines. In this case as well, the balance between the mounted machines is required. Since the NC data in consideration of is quickly generated, recovery is quick and efficient. The same applies when the product to be manufactured is changed.

Then, the number of substrates to be mounted, which constitutes a lot, which is a unit of transportation between the mounting machines and loading / unloading of the mounting machines, becomes appropriate, and deterioration of quality due to moisture absorption / curing of the solder cream is prevented. .

Furthermore, since the arrival procedure number that requires the least amount of time is derived by simulation, it is less likely that there will be a loading machine that is waiting for a lot despite there are lots waiting for loading.

Further, all the parts set positions of the mounting machine are filled with the parts in the mounting work up to the last time,
When it is necessary to replace the set parts, the personal computer 21 prints and displays the parts replacement table, so that the operator can replace the parts in accordance with the table.
Omissions and mistakes are less likely to occur.

Further, since the parts mounting order in each mounting machine is optimized, the processing in each mounting machine becomes faster and more efficient.

[0079]

Since the present invention is configured as described above in detail, the setup man-hours at the time of product switching are reduced, the mistake of replacing set parts is eliminated, and the quick transfer to another mounting machine when the mounting machine fails. And the improvement of the line balance (equalizing the load on the mounted machines) to improve the operating rate, and the optimization of the mounting order to improve the mounting efficiency, which can significantly improve the productivity of the entire system. It has the effect of being able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing a principle configuration of the present invention.

FIG. 2 is a diagram showing an overall configuration of an embodiment of the present invention.

FIG. 3 is a diagram showing a structure of a product file according to the embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of an equipment file according to the embodiment of this invention.

FIG. 5 is a diagram showing a structure of a parts file according to the embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of a route file according to the embodiment of this invention.

FIG. 7 is a diagram showing a structure of a production file according to the embodiment of the present invention.

FIG. 8 is a diagram showing a configuration of a planing file according to the embodiment of the present invention.

FIG. 9 is a diagram showing a configuration of a set file according to an embodiment of the present invention.

FIG. 10 is a diagram showing the structure of a component placement file according to the embodiment of the present invention.

FIG. 11 is a diagram showing the structure of a parts usage frequency file according to the embodiment of this invention.

FIG. 12 is a diagram showing a structure of prototype NC data according to an embodiment of the present invention.

FIG. 13 is a diagram showing a structure of NC data according to an embodiment of the present invention.

FIG. 14 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 M Mounted machine 1 Product file 2 Equipment file 3 Parts file 4 Route file 5 Production file 6 Planing file 7 Set file 8 Parts placement file 9 Parts usage frequency file 11 Selection means 12 Sorting means 13 Dividing means 14 Simulation means 15 NC data Generating means 16 Exchange instruction means 17 Sorting means

Claims (4)

[Claims] 1. A plurality of mounting machines (M) for automatically mounting various components on a substrate to be mounted based on inputted NC data are provided, and processing is performed in units of a lot consisting of a group of substrates to be mounted. In the printed circuit board component mounting system, information indicating the final finished state including the board size, the component type of each component to be mounted on the board, and the mounting position on the board, corresponding to the product number of the board. The product file (1) in which is set, and the mountable machine (M) including the maximum manageable size, the manageable part type, and the mountable speed of the mountable machine corresponding to the equipment number of the mountable machine (M). An equipment file (2) in which information about capabilities is set, and a part file (3) in which part information including the part type, mounting speed, and mounting method is set according to the part type, and each predefined file Out of the installed machine A route file (4) in which a combination of these is set in correspondence with the root name, and a production file (5) in which the product number of the board to be manufactured, the number of boards to be manufactured, and the root name specified at the start of processing are set, Corresponding to the product number of each board to be manufactured, a planing file that sets the offset value between the board reference when the board is placed on the mounting machine (M) and the mounting machine (M) reference. (6)
A selection means (11) for selecting a mounting machine (M) that is dimensionally compatible based on the product file (1), the equipment file (2), the route file (4) and the production file (5), Based on the product file (1), equipment file (2), parts file (3) and production file (5), the selecting means (11)
For each mounted machine (M) selected by, each mounted machine (M) must have a uniform processing time and be compatible with the capacity of each mounted machine (M). The distribution means (12) for allocating the part type to be in charge, and the processing time required for each mounting machine (M) are multiplied by the corresponding number of products produced in the production file (5), and based on a predetermined reference value. If it is smaller, it is regarded as a single lot, and if it is larger, it is divided into a plurality of lots by dividing the number of produced products so as to be less than the reference value, and the distribution means (12). According to the component allocation by the lot, the simulation means (14) for performing the simulation while changing the delivery procedure number for each lot and deriving the delivery procedure number that results in the shortest processing time, and the component sharing and simulation means by the distribution means (12).
Arrival procedure number by (14), product file (1), parts file
(3), and based on the planing file (6)
NC data generating means (15) for generating NC data to (M)
An NC data generation device comprising: 2. The NC data generating device according to claim 1, further comprising a set file (7) in which the component type of the component already loaded in each mounting machine (M) is set in correspondence with the equipment number. , The set file (7) when sorting by the sorting means (12)
The NC data generating device is characterized by preferentially handling the part type set in the set file (7). 3. The NC data generating device according to claim 1, wherein a loading position of a component already loaded in each mounting machine (M) and a component of the component loaded at the loading position are associated with an equipment number. The parts placement file (8) in which the model number is set, the parts usage frequency file (9) in which the usage frequency of the parts already loaded in each mounting machine (M) is set corresponding to the equipment number, and the NC Based on the NC data output from the data generation means (15) and the component placement file (8), the component type of the component to be newly loaded in the mounting machine (M) is extracted, and the component usage frequency file (9 ) To instruct to replace the least frequently used part with a new part, and after the instruction, a replacement instruction means for updating the part placement file (8) and the part use frequency file (9). An NC data generation device comprising (16). 4. The NC data generating device according to claim 1, wherein a loading position of a component already loaded on each mounting machine (M) and a component of the component loaded at the loading position are associated with the equipment number. Based on the component placement file (8) in which the model is set, the NC data output from the NC data generating means (15), and the component placement file (8), the time required to mount all the components to be mounted In order to minimize the above, the NC data generating device is provided with a rearranging means (17) for rearranging the component mounting order of the NC data and sending it to each mounting machine (M).