JP2773018B2 - Electronic component mounting machine management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounter management apparatus suitable for mounting electronic components on a printed circuit board using a mounter. The present invention relates to an improvement for optimizing the operation time of a mounting machine in consideration of the above.

[0002]

2. Description of the Related Art FIG. 4 is an explanatory diagram of conventional data transfer of a mounting machine. In order to increase production efficiency, dedicated machines are manufactured for mounters, inserters, dispensers and the like according to various uses. Here, when mounting electronic components on a printed circuit board, one electronic device printed circuit board is mounted using mounters A and B and an inserter C. On the other hand, for example, Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent Application Laid-Open No. 6180, an NC data generator is provided for each mounting machine in order to convert CAD data for printed circuit board design for mounting machines. In this case, the mounting data (NC data) of the printed circuit board is created for each mounting machine. Specifically, CAD for board design
The position at which the component is to be mounted is specified as data, and it is necessary to input which electronic component is mounted on which cassette of each mounting machine as data on the mounting machine side. In addition, using the parts list, the type and score of the entire part can be grasped, and the manufacturer can assign which electronic part to each cassette or determine the combination of the number and type of mounting machines that make up the production line. Considered separately.

From the viewpoint of electronic components, the electronic components are held in a device called a cassette provided in a mounting machine. In this case, for electronic components that are used very often, the same electronic component is assigned to a plurality of cassettes even when a single mounting machine is used. And
Even if one cassette is empty, deal with another cassette,
Time to refill the empty cassette with electronic components,
This prevents the mounting machine from stopping. Also, in the case where a line is configured using a plurality of mounting machines, and even when a variety of printed circuit boards are manufactured, a plurality of the same mounting machines are arranged in order to enhance versatility. The number of cassettes is increasing.

[0004]

However, if the mounting data of the printed circuit board is created for each mounting machine, an input operation for generating the mounting data for the number of mounting machines is required, and all the mounting data is obtained. There is a problem that it takes time. Also, when the same component is set in a plurality of cassettes, the situation cannot be grasped by the CAD for board design, the electronic components are accessed only in a certain cassette, and the electronic components are accessed in another cassette. There has been a problem in that mounting machine data that waits for replenishment of empty cassettes is created, and the operating rate of the entire mounting machine is reduced.

A first object of the present invention is to solve the above-mentioned problem. When the same component is set in a plurality of cassettes, the load of each cassette is made nearly equal to reduce the operating rate of the mounting machine. To increase. A second object is to increase the operating rate of the mounting machines by making the load amounts of the mounting machines close to each other evenly when the same parts are set in the cassettes of a plurality of mounting machines constituting one mounting line. is there. The third purpose is that even if there are multiple mounting machines on one mounting line,
An object of the present invention is to reduce input work required to generate mounting data.

[0006]

A first aspect of the present invention for achieving the first object is a component data storage unit which stores component data sent from a board design unit 10 and stores electronic components mounted on a printed board. 31, a cassette information unit 32 for storing which electronic component is stored in a cassette of the mounting machine 20 for mounting the electronic component on the printed board, and an electronic component stored in the component data storage unit. With reference to the cassette information section, the overlapping cassette storage section 33 for storing the one to which a plurality of cassettes are assigned, and the combination of the electronic components and the plurality of cassettes extracted in the overlapping cassette storage section, the assignment of each cassette is substantially equal. And a cassette assignment storage unit 35 for storing assignments of electronic components and a plurality of cassettes adjusted by the assignment management unit. Electronic component is taken out of the cassette stored in the cassette allocation storage unit by the mounting machine, and is mounted at a predetermined position on the printed board according to the component coordinate data 22 of the electronic component sent from the board design unit. Features.

A second invention for achieving the second and third objects is a component data sent from the board design unit 10,
A component data storage unit 41 for storing electronic components mounted on a printed board, and a plurality of mounting machines 20. Which electronic component is accommodated in a cassette of a mounting line for mounting the electronic components on the printed board. A mounting line information section 42 for storing, and a duplicate mounting machine storage for storing, for electronic components stored in the component data storage section, one to which a cassette with a plurality of mounting machines is assigned with reference to the mounting line information section. And an assignment management unit 44 that adjusts the combination of the electronic components extracted from the duplicate mounting machine storage unit and the cassettes with a plurality of mounting machines so that the assignment of the cassettes with the mounting machines is substantially equal. An electronic component adjusted by the allocation management unit and a mounting machine allocation storage unit 45 for storing allocation of cassettes with a plurality of mounting machines. The mounting unit is taken out of the cassette of the mounting machine stored in the storage unit and mounted at a predetermined position on the printed circuit board by the mounting machine stored in the mounting machine allocation storage unit in accordance with the component coordinate data 22 of the electronic component sent from the board design unit. It is characterized by:

[0008]

In the first aspect, the component data storage unit stores the type of the mounted component of the printed board sent from the board design unit. The cassette information section describes the correspondence between cassettes and electronic components on the mounting machine side. The duplicate cassette storage unit extracts and stores electronic components mounted on a printed circuit board to which a plurality of cassettes are assigned. When a plurality of cassettes are assigned to the electronic components mounted on the printed circuit board, the assignment management unit adjusts the assignment so that the frequency of use of each cassette is nearly equal, and sends the cassette to the cassette assignment storage unit. . In the mounting machine,
The electronic components to be mounted are taken out of the cassette specified by the cassette allocation storage unit, and the mounted components are mounted at predetermined mounting positions on a printed board sent from the board design unit.

In the second aspect, the component data storage unit stores the type of the mounted component of the printed board sent from the board design unit. The mounting line information section describes the correspondence between cassettes and electronic components on the mounting machine side. The duplicate mounter storage unit extracts and stores electronic components mounted on the printed circuit board to which a plurality of cassettes with mounters are assigned. When a plurality of cassettes with mounting machines are allocated to the electronic components mounted on the printed circuit board, the allocation management unit adjusts the allocation so that the frequency of use of each cassette is nearly equal, and stores the mounting machine allocation. Sent to the department. In the mounting machine, the electronic components to be mounted are taken out of the cassette with the mounting machine designated by the mounting machine assignment storage unit, and the mounted components are mounted at predetermined mounting positions on a printed board sent from the board design unit.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG.
Is a configuration block diagram showing an embodiment of the first invention, which is suitable for a case where the number of mounting machines 20 is one and the same electronic component is allocated to a plurality of cassettes. In the figure, a component data storage unit 31 stores component data of an electronic component mounted on a printed board sent from the board design unit 10. For example, there are a component name A, a component name B, a component name C, and the like. The cassette information section 32 stores which electronic component is stored in the cassette of the mounting machine 20 that mounts the electronic component on the printed board. For example, cassette 1 has a component name A,
The cassette 2 has a component name B, and the cassette 3 has a component name A. The overlapping cassette storage unit 33 stores the component data storage unit 31
With reference to the cassette information section 32, the electronic component stored in the storage section is stored to which a plurality of cassettes are assigned. In the above example, the cassettes 1 and 3
It is.

[0011] The assignment management unit 34 is provided in the overlapping cassette storage unit 3.
The combination of the electronic components and the plurality of cassettes extracted in step 3 is adjusted so that the assignment of each cassette is substantially equal. Here, when a plurality of component names A are mounted on the printed circuit board for the component name A, the cassettes 1 and 3 are alternately assigned. The cassette allocation storage unit 35 stores the electronic components adjusted by the allocation management unit 34 and the allocation of a plurality of cassettes, and records information using, for example, an NC tape for a mounting machine. Mounting machine control unit 23
Is to take out the relevant electronic component from the cassette stored in the cassette assignment storage unit 35 by the mounting machine 20 and mount it at a predetermined position on the printed board according to the component coordinate data 22 of the electronic component sent from the board design unit 20. . For example, a program controller is used as the mounter control unit 23. The format of the component coordinate data 22 is, for example, a set of a component number #, a component name A, an X coordinate, a Y coordinate, and a rotation angle from a reference posture. I do.

FIG. 2 is a block diagram showing an embodiment of the second invention, in which a mounting line is formed by using a plurality of mounting machines 20, and the same electronic component is mounted on a plurality of cassettes attached to these mounting machines. This is suitable when is assigned. In the figure, a component data storage unit 41 stores component data of electronic components mounted on a printed board sent from the board design unit 10. For example, component name A, component name B, component name C
And so on. The mounting line information section 42 includes a plurality of mounting machines 20.
It stores which electronic component is accommodated in the cassette of the mounting line for mounting the electronic component on the printed circuit board. For example, the cassette 1 of the mounting machine # 1 has a component name A, the cassette 2 of the mounting machine # 1 has a component name B, and the mounting machine #
The second cassette 3 has a component name A or the like. The duplicate mounting machine storage unit 43 stores the electronic component stored in the component data storage unit 41 to which a cassette with a plurality of mounting machines is assigned with reference to the mounting line information unit 42. In the above example, the cassette 1 of the mounting machine # 1 and the cassette 3 of the mounting machine # 2 for the component name A.

The allocation management unit 44 includes a duplicate mounting machine storage unit 43
Is adjusted so that the assignment of the cassettes with the respective mounting machines is substantially equal to the combination of the electronic components extracted in step (1) and the cassettes with the plurality of mounting machines. Here, in the case where a plurality of component names A are mounted on the printed circuit board, the cassette 1 of the mounting machine # 1 and the cassette 3 of the mounting machine # 2 are mounted.
Are assigned alternately. Mounting machine allocation storage unit 45
Stores the allocation of electronic components and cassettes with a plurality of mounting machines adjusted by the allocation management unit 44, and records information using, for example, NC tapes for the mounting machines. The mounting machine control unit 23 takes out the electronic component from the cassette of the mounting machine stored in the mounting machine assignment storage unit 45, and
Is mounted at a predetermined position on the printed circuit board in accordance with the component coordinate data 22 of the electronic component sent from. This mounting is performed by the mounting machine 20 stored in the mounting machine assignment storage unit 45.

FIG. 3 is a flowchart for explaining the operation of the apparatus shown in FIG. First, component coordinate data of a printed board to be processed this time is received from the board designing unit 10 (step 1). Specifically, the data is as shown in Table 1, and here shows a case where eight mounted components are handled.

[Table 1] Then, information relating to the electronic component is extracted from the component coordinate data and stored in the component data storage unit 41 (step 2). Next, the relationship between the cassette with mounting machine and the electronic component is fetched from the mounting line information section 42 (step 3).
First, the mounting machines constituting the mounting line are defined as shown in Table 2.

[Table 2] Next, electronic components that can be registered in or stored in the cassette with the mounting machine on the designated mounting line are checked, and mounted component registration data as shown in Table 3 is created.

[Table 3]

Next, for the same electronic component, a component having a plurality of cassettes with mounting machines is extracted (step 4). This result is recorded in the duplicate cassette storage unit 33. Table 4 in the above example.

[Table 4] Then, the overlapping cassettes with a mounting machine are distributed so that the mounting opportunities of the electronic components are substantially equal (step 5). For example, as shown in Table 5, distribution is performed cyclically.

[Table 5]

Steps 4 and 5 are repeated for all electronic components mounted on the printed circuit board (step 6). And
After all the processes are completed, an NC tape of each mounting machine is created (step 7). It is not necessary to perform the sorting process for the electronic component and the cassette with the mounting machine that have a one-to-one correspondence, and the correspondence may be directly used. As a result, NC tapes for each mounting machine are produced collectively,
This has the effect of increasing office work efficiency.

[0017]

As described above, according to the first aspect of the present invention, when a plurality of cassettes exist for the electronic component to be mounted, the allocation management unit makes the use frequency of each cassette substantially equal. Since the assignment is performed, there is no need to wait for replenishment of empty cassettes, and the operating rate of the entire mounting machine is increased. Further, according to the second aspect, since the assignment management unit that evens out the substantial load distribution of each mounting machine constituting the mounting line is provided, it takes time for one mounting machine to work, and This has the effect of eliminating traffic jams and optimizing the operation rate.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram showing an embodiment of the first invention.

FIG. 2 is a configuration block diagram showing an embodiment of the second invention.

FIG. 3 is a flowchart illustrating the operation of the apparatus of FIG. 2;

FIG. 4 is an explanatory diagram of conventional mounting machine data transfer.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 board design unit (board design CAD) 20 mounting machine 23 mounting machine control unit 31 component data storage unit 32 cassette information unit 33 duplicate cassette storage unit 34 assignment management unit 35 cassette assignment storage unit (NC tape)

Claims (2)

(57) [Claims] A component data storage unit (31) for storing electronic components mounted on a printed board, the component data being sent from a board design unit (10), and a mounting unit for mounting the electronic components on the printed board. A cassette information unit (32) for storing which electronic component is stored in a cassette of the machine (20); and an electronic component stored in the component data storage unit.
A duplicate cassette storage unit (33) for storing a cassette to which a plurality of cassettes are assigned with reference to the cassette information unit
An assignment management unit (34) for adjusting the combination of the electronic components extracted from the overlapping cassette storage unit and the plurality of cassettes so that the assignment of each cassette is substantially equal; and an electronic component adjusted by the assignment management unit. And a cassette assignment storage unit (35) for storing assignment of a plurality of cassettes. The mounting machine takes out electronic components from the cassettes stored in the cassette assignment storage unit, and sends electronic component components sent from the board design unit. A management device for an electronic component mounting machine, wherein the mounting is performed at a predetermined position on the printed circuit board according to coordinate data (22). 2. A component data storage unit (41) for storing electronic components mounted on a printed board, the component data being sent from a board design unit (10), and a plurality of mounting machines (2).
0), a mounting line information section (42) for storing which electronic components are accommodated in a cassette of a mounting line for mounting electronic components on the printed circuit board, and an electronic component stored in the component data storage section. About parts
A duplicate mounting machine storage unit (43) for storing a cassette to which a plurality of cassettes with mounting machines are allocated by referring to the mounting line information unit; an electronic component extracted by the duplicate mounting machine storage unit; An allocation management unit (44) that adjusts the combination of cassettes with mounting machines so that the allocation of cassettes with mounting machines is substantially equal; an electronic component adjusted by the allocation management unit and a cassette with a plurality of mounting machines Mounting machine allocation storage unit (45) for storing the allocations
The electronic component is taken out of the cassette of the mounting machine stored in the mounting machine assignment storage unit, and is placed at a predetermined position on the printed board according to the component coordinate data (22) of the electronic component sent from the board design unit. An electronic component mounter management device, wherein the mounter is mounted by a mounter stored in a mounter allocation storage unit.