JPH11242510A - Nc data generation device and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the generation time of NC data for an electronic parts mounting machine, to improve the quality of NC data and to make the working rate of the electronic parts mounting machine to be uniform without depending on the generator of NC data. SOLUTION: An NC data generation device 1 is provided with a parts data storage part 11 storing parts data, a coordinate data storage part 12 storing coordinate data, a nozzle characteristic storage part 13 storing the types of nozzles which can be installed on a mounting machine, a mounting machine data storage part 30 storing constitution data of the mounting machine, a mount time data storage part 24 storing mount time data for the respective types of electronic parts and an NC data generation means generating numerical control data based on data stored in respective storage parts are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an NC data creating apparatus and an NC data creating method, and more particularly to an NC data creating apparatus and an NC data creating apparatus suitable for creating NC data for a control device for controlling an electronic component mounting machine. About the method.

[0002]

2. Description of the Related Art In an electronic component mounter for mounting an electronic component on a wiring board, an NC program for an NC device for controlling the drive of the electronic component mounter is created in advance, thereby mounting the electronic component on the wiring board. Perform Conventionally, the above NC program creation work is performed by designating a position for mounting an electronic component from CAD (Computer Aided Design) data at the time of designing a wiring board, and executing data on a mounting machine side.
Information as to which component supply cassette of the mounting machine the electronic component is to be supplied to, as well as information on the order in which the electronic components are sucked into the nozzles of the mounting machine and information on the order in which the sucked electronic components are mounted on the wiring board. NC data
An NC program is created based on these NC data. In addition, CAD data for designing a wiring board
A component list is created from the data, the types and points of the entire components are grasped, and the operator separately considers which electronic components to assign to each supply cassette and how to arrange the necessary nozzles. .

[0003]

However, if the above-described NC data is created every time an electronic component is mounted on each wiring board, it takes a very long time to obtain the NC data for mounting. There is a disadvantage of this. Also, if NC data for mounting is created using only the wiring board design data,
There is also a disadvantage that the device for efficiently operating the mounting machine depends on the experience of the creator and lowers the operating rate of the mounting machine.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantages, and can reduce the time required to create NC data for an electronic component mounting machine, thereby improving the quality of NC data. N
An object of the present invention is to provide an apparatus and a method for creating C data. Still another object of the present invention is to provide an NC data creation apparatus and an NC data creation method capable of making the operation rate of an electronic component mounting machine uniform without depending on the creator of the NC data.

[0005]

According to the present invention, there is provided an NC data generating apparatus comprising: a nozzle for sucking an electronic component; a nozzle head for holding the nozzle; a moving means for moving the nozzle head; A component supply unit that supplies the nozzle and a control unit that drives and controls the nozzle and the moving unit, and creates numerical control data for the control unit of an electronic component mounting machine that mounts an electronic component on a wiring board; NC
A data creation device, comprising: an extraction unit that extracts electronic component data to be mounted and coordinate data indicating a position coordinate at which the electronic component is mounted from a wiring board design information; and a component data storage unit that stores the electronic component data. A coordinate data storage unit that stores the coordinate data, a nozzle characteristic storage unit that stores types of nozzles that can be mounted on the mounting machine, a mounting machine data storage unit that stores configuration data of the mounting machine, A mounting time data storage unit for storing mounting time data required for mounting on the wiring board for each type of electronic component, and NC data generating means for generating the numerical control data based on the data stored in each of the storage units And

According to the present invention, electronic component data to be mounted on a wiring board, coordinate data indicating position coordinates for mounting the electronic component, nozzle type data, mounting machine configuration data, and mounting time for each component type Create numerical control data based on the data. For this reason, NC data suitable for the configuration of the mounting machine is created, and since the content of each data does not include the experience of the creator, the content of the NC data is uniform and independent of the creator. Become.

[0007] The NC data creating means is configured to store the part data.
Nozzle for determining the type of nozzle required for sucking each component and the required number of nozzles based on the data in the data storage unit, the data in the nozzle characteristic storage unit, and the data in the mounting time data storage unit. An assignment generation unit, and a work level management unit that assigns and determines the types of nozzles and components to be mounted on each nozzle head so that the total mounting time in each nozzle head is as uniform as possible from the data in the nozzle allocation storage unit. A nozzle arrangement management unit that determines the arrangement of the nozzles assigned to each nozzle head in the nozzle head in the work level management unit, and a nozzle arrangement supply unit that supplies a component assigned to each nozzle head in the work level management unit. A component supply source that determines the arrangement of the component supply means with respect to each nozzle head based on the data in the mounting machine data storage unit. An arrangement management unit, and a path generation unit that generates path data for each of the nozzle heads to traverse the wiring board based on the determined nozzle arrangement data, the component supply unit arrangement data, and the data in the coordinate data storage unit. A suction order management unit that determines a suction order for picking up components based on the path data; and a mounting order management unit that determines a mounting order for mounting components on the wiring board based on the path data.

[0008] The work level management unit of the NC data creating means having the above-mentioned structure equalizes the work time for mounting each nozzle head, thereby improving the operating efficiency of the mounting machine.

According to the NC data producing method of the present invention, there is provided a nozzle for sucking an electronic component, a nozzle head for holding the nozzle, moving means for moving the nozzle head, and a component for supplying the electronic component to the nozzle. An NC data creation method comprising: a supply unit; and a control unit that drives and controls the nozzle and the movement unit, and creates numerical control data for the control unit of an electronic component mounting machine that mounts an electronic component on a wiring board. The wiring board design information, the data of the type of nozzle that can be mounted on the mounting machine, the configuration data of the mounting machine,
Preparing mounting time data required for mounting on the wiring board for each type of the electronic component, and component data to be mounted from the wiring board design information and coordinate data indicating position coordinates for mounting the component. Extracting,
Creating the numerical control data based on the data.

The step of preparing the numerical control data includes the steps of: the part data; the nozzle type data;
From the mounting time data, a step of determining the type of nozzle and the required number of nozzles required for sucking each component, and determining the type of nozzle and the required number of nozzles for each nozzle head based on the determined information on the type of nozzle and the required number of nozzles Allocating and determining the type of nozzle to be mounted and the type of component, determining the arrangement of the nozzles allocated to each nozzle head in the nozzle head, and supplying the component allocated to each nozzle head. Determining the arrangement of the component supply means with respect to each nozzle head based on the configuration data of the mounting machine; and, based on the determined arrangement of the nozzles and the arrangement of the component supply means, and the coordinate data, Generating path data that traverses the wiring board; and providing a component to the component based on the path data. Determining a suction order for suctioning from the means, determining a mounting order for mounting components on the wiring board based on the path data, an arrangement of the nozzles in a nozzle head, and each nozzle of the component supply means. Arrangement with respect to the head, the suction order,
Configuring numerical control data from the mounting order.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. First Embodiment FIG. 1 is an explanatory diagram showing the configuration of an electronic component mounting system according to the present embodiment. In FIG. 1, an electronic component mounting system according to the present embodiment includes an NC data creation device 1.
, An NC device 80, and an electronic component mounter 60. The NC data creation device 1 includes the wiring board design data D
T ₀ , configuration data DT ₁ of the mounting machine 60, mounting time data DT _{2 for} each type of component to be mounted, and nozzle characteristic data DT ₃ are input, and based on these data DT _{0 to} DT ₃ ,
An NC program for driving and controlling the mounting machine 60 is created and downloaded to the NC device 80. NC device 80
Decrypts the NC program from the NC data creation device 1 and outputs a control command for driving and controlling various actuators of the mounting machine 60. The mounting machine 60 includes an NC device 80
The various electronic components P to be supplied are mounted on the wiring board based on the control command from.

FIG. 2 is an explanatory diagram showing a configuration example of the mounting machine 60. The mounting machine 60 shown in FIG. 2 is provided with an X-axis guide 63 below a beam 62 provided between columns 61 and 62 erected on the left and right sides of the drawing. Two Y-axis guides 64 are provided. The Y-axis guide 64 is movable along the X-axis guide 63. Below the two Y-axis guides 64, a head section 66 is provided.
Are provided so as to be movable along the Y-axis guide 64 in the Y-axis direction. As a result, the head 66
It can be moved to any position on the Y plane. The head section 66 is driven by, for example, a ball screw provided in each of the X-axis guide 63 and the Y-axis guide 64 (not shown) and a servomotor that drives the ball screw.

Below the head section 66, a nozzle head 70 in which a plurality (ten) of component suction nozzles 71 are arranged on a predetermined circumference as shown in FIG. The nozzle head 70 is configured such that various kinds of component suction nozzles 71 are detachable. The head section 66 is rotatable at an arbitrary angle by a drive source (not shown).

At both ends of the Y-axis guide 64 of the mounting machine 60, four component supply units 67a to 67d are arranged, and various electronic components are supplied to the respective component supply units 67a to 67d. It is arranged at a predetermined position. A plurality of cassettes C are provided in each of the component supply units 67a to 67d, and a plurality of electronic components are supplied through these cassettes C. The component supply units 67a and 67b supply components to the nozzle head 70 on the left side of the drawing, and
7c and 67d are for supplying parts to the nozzle head 70 on the right side of the drawing. In the present embodiment, each component supply unit 67 can arrange 40 cassettes C. In the present embodiment, the mounting of the component suction nozzle 71 on the nozzle head 70 and the disposition of the cassette C in the component supply unit 67 of the mounting machine 60 are performed by a nozzle automatic exchange device (not shown), a cassette feeder (tray feeder), or the like. It is done automatically by
These drive controls are also performed by the NC device 80.

Further, component supply units 68 are provided at both ends of the Y-axis guide 64, and supply components to the nozzles from the respective cassettes C of the component supply units 67a to 67d. The component feeder 68 moves with the movement of the Y-axis guide 64 in the X-axis direction. The head unit 66 moves to the component supply device 68, and the component suction nozzle 71 moves down in the Z-axis direction with respect to the electronic component P as shown in FIG.
At this time, the plurality of component suction nozzles 71 sequentially suck the electronic components P. The head 66 moves above the wiring board B,
The electronic component P sucked by the component suction nozzle 71 is transferred to the wiring board B.
Attach to the specified position.

The NC device 80 shown in FIG. 1 controls the position and speed of the actuator for driving the head unit 66 and controls the rotation of the nozzle head 70 based on the NC program created by the NC data creating device 1. And Z
It is a well-known NC device that performs drive control and the like in the axial direction.
Specific description is omitted. The NC data creation device 1
The transfer of the NC program from the PC to the NC device 80 is performed via a predetermined storage medium or by communication means.

FIG. 4 is a block diagram showing an example of the configuration of the NC data creation device 1 according to the present embodiment. In FIG. 4, the NC data creating apparatus 1 includes a data input unit 10, a component data storage unit 11, a coordinate data storage unit 12, a nozzle characteristic storage unit 13, a component type management unit 20, , A component type storage unit 21, a nozzle allocation generation unit 22, a nozzle allocation storage unit 23, a component type data storage unit 24, a machine configuration storage unit 30, a work level management unit 31, a temporary nozzle arrangement storage Part 3
2, a temporary cassette arrangement storage unit 33, a cassette arrangement management unit 34, a cassette arrangement storage unit 35, a nozzle arrangement management unit 36, a nozzle arrangement storage unit 37, and a path generation unit 40.
, A path storage unit 41, a mounting order management unit 52, a suction order management unit 50, a mounting order storage unit 53, and a suction order storage unit 51. Each unit of the NC data creation device 1 can be realized by, for example, a personal computer and software.

The de - data input unit 10, the circuit board design data DT ₀ to be input to the NC data creation apparatus 1 as CAD data, parts data of the electronic components to be mounted on the wiring board - a position for mounting the motor and the electronic component The component data is stored in the component data storage unit 11, and the mounting coordinate data is stored in the coordinate data storage unit 12. The data input unit 10 receives the mounting machine configuration data DT ₁ , the mounting time data DT _2, and the nozzle characteristics DT _3, which are input to the NC data generating device 1, respectively, in the machine configuration storage unit 30, the mounting time storage unit 24, and The data is output to the nozzle characteristic storage unit 13 and stored.

The component data stored in the component data storage unit 11 is, for example, a combination of a component ID unique to each component, a component name, and a component type ID. The mounting coordinate data stored in the coordinate data storage unit 12 includes, for example, a unique component ID assigned to each component, a component type ID for specifying the type of component, and the component mounted on the wiring board. (X-axis, Y-axis coordinates).

The mounting machine configuration data DT ₁ stored in the machine configuration storage unit 30 includes, for example, the number of nozzle heads that hold component suction nozzles, the number of nozzles for each head that each nozzle head can hold, and It consists of the number of supply units (electronic component supply cassettes) for supplying components and positional information of the supply units. The mounting time data DT ₂ stored in the mounting time storage unit 24 includes the mounting time required for mounting on the wiring board for each component type. The nozzle characteristics DT ₃ stored in the nozzle characteristic storage unit 13 include the above-described component type ID and a nozzle type ID indicating the type of nozzle that sucks a component corresponding to the component type ID.

The component type management unit 20 includes a component data storage unit 1
1 is totalized for each component type ID, and the mounting time for each component type stored in the component type data storage unit 24 is totaled. Is output to the component type storage unit 21. The data stored in the component type storage unit 21 includes a combination of the component ID of each component, the component name of each component, the total number of each component, and the total mounting time.

The nozzle allocation generating unit 22 stores the data stored in the component data storing unit 11 and the nozzle characteristic storing unit 13
From the data stored in the component data storage unit 21 and the data stored in the component type storage unit 21, the nozzle type of the nozzle required to suck each component stored in the component data storage unit 11 and the necessary Determine the number of nozzles.

The nozzle allocation generation unit 22 calculates the required number of nozzles N ₀ required for each nozzle type, the total number of components A _{0 for} each nozzle type, the total number of components B _{0 for} each nozzle head, and the number of nozzles that can be mounted on the nozzle head. It is calculated from C ₀ by the following equation (1). The total number of components B ₀ for each nozzle head is a number obtained by calculating the total number of components from the number of components stored in the component type storage unit 21 and uniformly assigning the total number to each nozzle head. Therefore, when there are two nozzle heads, the number is half of the total number of parts.

N ₀ = (A ₀ / B ₀ ) × C ₀ (1)

Since the required number N ₀ of nozzles must be an integer, if it is not an integer, rounding is performed.
If the required number of nozzles N ₀ is smaller than 0.5, it is set to 1. However, if this process is performed, the number of nozzles that can be mounted on the nozzle head exceeds the number C ₀ (other nozzle types that cannot be mounted on the nozzle head will occur). Therefore, the number of other nozzle types must be subtracted. No. When the total number B ₀ of components for each nozzle head is smaller than the number C ₀ of nozzles on which the nozzle head can be mounted, the required number N ₀ of nozzles is set to the total number A ₀ of components for each nozzle.

Further, when the required number of nozzles N ₀ is larger than the number of nozzles C ₀ on which the nozzle head can be mounted, the degree of nozzle number satisfaction S ₀ (%) for each component.
Is calculated by the following equation (2) from the required number of nozzles N ₀ and the value N ₀ ′ of the required number of nozzles N _{0 obtained} by truncating the decimal part.

S ₀ = N ₀ ′ / N ₀ × 100 (2)

The numerical value of the nozzle number satisfaction level S ₀ for this part is high, and the number of nozzles assigned is reduced from the one with the larger number of nozzles. Also, if the number-of-nozzles satisfaction S ₀ is increased on average, the number of theoretical passes P _0, which will be described later, can be reduced, and the mounting time can be reduced. The nozzle number satisfaction S ₀ becomes 80% or less when the required number of nozzles N ₀ is less than 1.5 and 1.25 or more. Therefore, the degree of nozzle number satisfaction for the component is high and the number of assigned nozzles is large. Adjustment is performed by moving one from the place.

The data stored in the nozzle allocation storage unit 23 includes a nozzle type ID, the total number of components assigned to the nozzle corresponding to the nozzle type ID, the total mounting time, the number of each component type, The number of nozzles N ₀ , the number of nozzles satisfaction S _0, and the combination data of the mounting time and the number of each component type.

The work leveling management unit 31 stores data for leveling the mounting work time of each nozzle head based on the data stored in the machine configuration storage unit 30 and the data stored in the nozzle allocation storage unit 23. Create

The work level management unit 31 uses the total mounting time data obtained for each nozzle type stored in the nozzle allocation storage unit 23 to make the total mounting time in each nozzle head as uniform as possible. Nozzle type (part type)
Is assigned to each nozzle head and determined. by this,
This means that the nozzle type and the component type of the nozzle mounted on each head are simultaneously assigned. Temporary nozzle arrangement storage unit 3
2 stores nozzle arrangement data for each nozzle head. In addition, the temporary cassette arrangement storage unit 33 stores component type data assigned to each nozzle head.

The cassette arrangement management section 34 determines the arrangement of the cassettes for supplying the components from the data stored in the temporary cassette arrangement storage section 33. First, each nozzle head is divided for each component type so that the mounting time in each cassette assigned to each nozzle head is as uniform as possible. Next, the component arrangement center of gravity in the X direction on the substrate is determined from the component type having a large number of components in each cassette, and the cassette is arranged at the cassette position closest to the X-direction component arrangement center. The cassette arrangement storage unit 35 stores cassette arrangement data.

The nozzle arrangement management unit 36 determines the arrangement of the nozzles in the nozzle head using the data stored in the temporary nozzle arrangement storage unit 32. The method of determining the arrangement of the nozzles is to determine the arrangement so that the same nozzle type is not adjacent to each other as much as possible. For example, if the nozzles are arranged on the circumference as shown in FIG. 3A, it is determined that the same nozzle type is opposed at a position of 180 degrees as much as possible. When the required number of nozzles N ₀ is an odd number, the number of nozzles to be mounted (charged) is combined with a component type having a number as close as possible. The nozzle arrangement storage unit 37 stores the determined nozzle arrangement data.

The path generation unit 40 calculates the number of times (the number of passes) that cross the wiring board. Here, a path crossing in the Y-axis direction for mounting the electronic component on the substrate is called a path.
Find the minimum divided by the number of nozzles in the request number of nozzles, the following from the component total number A ₁ and the nozzle number N ₁ for the adsorption front side, the rear side, respectively theoretical number of paths P ₀ at the nozzle for the nozzle It is calculated by equation (3).

P ₀ = A ₁ / N ₁ (3)

Next, the components to be mounted during each pass are determined. First, the minimum number of components that must be mounted during a pass is calculated for each nozzle. In the first pass, the number L ₀ of components to be mounted in the first pass is calculated from the theoretical pass number P ₀ , the total number of components A _1, and the number of nozzles N ₁ by the following equation (4).

L ₀ = A ₁ −P ₀ × N ₁ (4)

[0038] From the following, by the following equation (5), and the present number of parts finished mounted in the part number L _i that must be attached to parts total A _i and the previous mounting in the nozzle path B _i calculated from the remaining number of paths P _i and the nozzle number N ₁ by the following equation (5).

L _i = A _i −B _i −P _i × N ₁ (5)

Parts are extracted for each type of nozzle from the right end of the board data to the left (in the -X axis direction), and the process ends when all the nozzles satisfy the number of parts to be mounted. However, those parts for which the number of nozzles has been selected before reaching this point are excluded therefrom. If the search is continued for another nozzle even if the number of components to be mounted is exceeded, extraction is continued up to the number of nozzles. When the same components are arranged on the same X coordinate, priority is given to the side on which the component is mounted (the Y coordinate is closer to the cassette of the component). If the number of components to be mounted in the pass is less than the number of nozzles, it is better to fill empty nozzles in consideration of the opposing nozzles. Therefore, the following processing is performed.

(1) If an odd number of parts are selected by an even number of nozzles, no new search is performed. (2) If the user selects an odd number of components with an even number of nozzles, nothing is performed if the opposing nozzle group selects an odd number of components. If an even number of parts have been selected, the search is further performed to select the even number of parts. (3) If the user has selected an even number of components with an odd number of nozzles, and if the opposing nozzle group has selected an odd number of components, the search is further performed and the user himself has an odd number of components. To choose. Nothing is done if an even number of parts are selected. (4) If oneself has selected an odd number of components with an odd number of nozzles, nothing is done if the opposing nozzle group has selected an odd number of components. If an even number of parts have been selected, the search is further performed to select the even number of parts. However, the width of the search is within the number obtained by dividing the size of the target substrate in the X direction by the number of theoretical passes P _0.

The path storage 41 stores the path determined as described above and the path data including the mounted components in the path.

The suction order management unit 50 uses the information in the path storage unit 41 to determine the order in which electronic components are sucked for each nozzle in the path. The suction order is determined so that the electronic components can be sucked in ascending order of the cassette number. The suction order storage unit 51 stores the determined suction order data.

The mounting order management unit 52 uses the information in the path storage unit 41 to determine the mounting order of the electronic components for each nozzle in each pass. The mounting is performed in order from the mounting position closest to the last suction position in each pass. Specifically, the mounting order is determined in ascending order of the distance from the last suction position using the mounting coordinate data in the coordinate data storage unit 12. The mounting order storage unit 53 stores the determined mounting order data.

The NC program generation unit 54 includes a cassette arrangement data of the cassette arrangement storage unit 35, a nozzle arrangement data of the nozzle arrangement storage unit 37, a suction order data of the suction order storage unit 51, and a mounting of the mounting order storage unit 53. Based on the NC data composed of the order data, the N
Generate a C program.

Next, an example of a processing procedure of the electronic component mounting system having the above configuration will be described with reference to a flowchart shown in FIG. First, each data is input to the NC data creation device 1 (step S1). Specifically, CAD
The wiring board design data DT ₀ created as data
Input to the C data creation device 1. For example, when the NC data creation device 1 is configured by a personal computer, and the computer incorporates CAD software, the CAD data can be easily input.
Further, the mounting machine configuration data DT ₁ and the mounting time data DT
₂ and the nozzle characteristics DT ₃ are input. Various data DT
_{1 to} DT ₃ are performed through the input unit 10 described above.

The mounting machine configuration data DT ₁ has, for example, a data configuration as shown in FIG. The mounting machine 60 is 2
Nozzle heads 70 and four supply units 67a to 67d
And the number of cassettes provided in the supply units 67a to 67d for supplying components to the two nozzle heads 70 and the coordinate positions of the supply units 67a to 67d are designated data.

The nozzle characteristic data DT ₃ has, for example, a data configuration as shown in FIG. An ID is assigned to each nozzle 71 that can be mounted on the mounting machine 60.
The nozzle characteristic data DT ₃ is composed of data indicating the type of the component to be sucked by the nozzle 71 and the type of the nozzle 71 with respect to each of the nozzles 71 to which these IDs are assigned.

The mounting time data DT ₂ is, for example, as shown in FIG.
The data configuration is as shown in FIG. Mounting time data DT ₂
Consists of data indicating each component type and the mounting time of each component type on the wiring board. Each mounting time is measured in advance.

Next, when the input of various data is completed, C
Component data of electronic components mounted on a wiring board from AD data
The mounting coordinate data indicating the position where the electronic component is to be mounted is separated from the data (step S2). Part data and mounting coordinate data
The separation of the data is performed in the input unit 10. Parts data
The data has a data configuration as shown in FIG. 6, for example. That is, a component ID is assigned to each component P mounted on the wiring board B, and a component type ID indicating a component type and a component name are given to each component ID. The mounting coordinate data has a data configuration as shown in FIG. 7, for example. That is, a component ID is assigned to each component P mounted on the wiring board B, and a component type ID indicating a type of the component and a mounting position (X coordinate, Y coordinate) are given to each component ID.

Next, the type of nozzle required to suck each component and the required number of nozzles are determined (step S3). The determination of the type of the required nozzle and the required number of nozzles is performed by the nozzle allocation generation unit 22. The data of the nozzle type and the number of nozzles determined at this time have a data configuration as shown in FIG. 12, for example.
That is, the total mounting time required for mounting the components on the wiring board P, the total number of components, the number of component types, the number of nozzles, the number of nozzles, the degree of satisfaction of the number of nozzles required for each nozzle type, and the number of components for each component type And data of the mounting time.

Next, the type of nozzle and the type of component to be mounted on each nozzle head 70 are assigned and determined (step S4). The assignment of the type of the nozzle and the type of the component is determined by the work level management unit 31. The nozzle type data assigned and determined has, for example, a data configuration as shown in FIG. That is,
The data includes the types of nozzles assigned to the left and right nozzle heads 70 and the number of nozzles. Further, the data of the type of the component determined to be assigned has a data configuration as shown in FIG. 14, for example. That is, the data includes the total number of component types in charge of the left and right nozzle heads 70, the number of each component type, and mounting time data.

Next, the arrangement of the nozzles assigned to each nozzle head 70 is determined (step S5). The determination of the nozzle arrangement is performed by the work level management unit 31. The determined nozzle arrangement data is, for example, as shown in FIG.
The data structure is as shown in FIG. That is, the data includes the types of nozzles to be mounted corresponding to the ten nozzle mounting positions of the left and right nozzle heads 70, respectively.

Next, the arrangement of the cassette C for supplying the components allocated to each nozzle head 70 is determined (step S6). The arrangement of the cassette C is determined by the cassette arrangement management unit 34. The determined layout data of the cassette C has, for example, a data configuration shown in FIG. That is, each cassette C is assigned an ID, and is composed of data of a supplied component type corresponding to the cassette C of each ID.

Next, path data for each nozzle head to cross over the wiring board is generated (step S7). The path data is generated by the path data generation unit 40. The generated path data has a data configuration as shown in FIG. 17, for example. That is, in each pass, the number of components to be mounted in the pass, the component I
D, temporary suction order, temporary mounting order, and mounting coordinates.

Next, the suction order in which the nozzles pick up the components in each pass is determined (step S8). The suction order is determined by the suction order management unit 50. The determined suction order data has, for example, a data configuration as shown in FIG. That is, in each pass, the data includes the number of components to be mounted, the component ID, the component type ID, and the suction order.

Next, the mounting order in which the nozzle mounts the component on the wiring board B in each pass is determined (step S).
9). The mounting order is determined by the mounting order management unit 52. The determined mounting order data has, for example, a data configuration as shown in FIG. That is, in each pass, the number of components to be mounted, component ID, component type I
D, mounting order, and mounting coordinates.

Next, the cassette arrangement data and the nozzle arrangement data shown in FIG. 15, FIG. 16, FIG. 18 and FIG.
Based on the suction order data and the mounting order data, the NC device 80
For example, an NC program called a G code is generated (step S10).

Next, the NC device 80 stores the generated N
The C program is downloaded, and the NC device 80
According to the program, the cassette C is arranged at a predetermined position on the mounting machine 60, various nozzles 71 are mounted on a predetermined nozzle head 70, and the electronic components P are mounted on the wiring board B according to a predetermined suction order and mounting order. (Step S11).

As described above, according to the present embodiment, the optimum number of nozzles for each nozzle type that can reduce the mounting time can be determined by the nozzle allocation generation unit 22.
Further, the work level management unit 31 can level (equalize) the mounting time of each nozzle head.
Further, the nozzle arrangement management unit 36 can determine an optimal arrangement of nozzles that can reduce the mounting time.
Further, the cassette arrangement management unit 34 can determine an optimal arrangement of the cassettes that can reduce the mounting time. The path generation unit 40 can generate optimal path data that allows efficient mounting work. The suction order management unit 50 can determine an optimum suction order that can reduce the time required for the suction operation. The mounting order management unit 52 can determine an optimal suction order that can reduce the time required for the mounting operation.

From the above, in the present embodiment, the NC data created by the nozzle arrangement management unit 36, the cassette arrangement management unit 34, the suction order management unit 50, and the mounting order management unit 52 are the electronic components of the mounting machine 60. The time required for the mounting operation can be shortened, and the operating rates of the left and right nozzle heads can be equalized, so that the operating rate of the mounting machine 60 can be improved. Further, various data input to the NC data creation device 1 are standardized, and the created NC data is uniform regardless of the experience of the creator, and the quality is improved.

In this embodiment, the mounting machine 60 has been described as an example. However, the present invention is not limited to this, and can be applied to various electronic component mounting machines.

[0063]

According to the present invention, the creation of the NC data for mounting does not depend on the operator, the operation error during the work is reduced, and the operation efficiency of the mounting machine is improved. Becomes possible. Further, the NC data created by the present invention becomes homogeneous regardless of the experience of the creator, and the quality is improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of an electronic component mounting system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a configuration example of a mounting machine.

FIG. 3 is an explanatory view showing an arrangement and operation example of a component suction nozzle.

FIG. 4 is a block diagram illustrating a configuration example of an NC data creation device according to an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an example of processing of the electronic component mounting system according to the embodiment of the present invention.

FIG. 6 is a diagram illustrating an example of component data.

FIG. 7 is a diagram illustrating an example of mounting coordinate data.

FIG. 8 is a diagram illustrating an example of mounting time data.

FIG. 9 is a diagram illustrating an example of machine configuration data.

FIG. 10 is a diagram illustrating an example of nozzle characteristic data.

FIG. 11 is a diagram illustrating an example of component type total data;

FIG. 12 is a diagram illustrating an example of nozzle allocation data.

FIG. 13 is a diagram illustrating an example of temporary nozzle arrangement data.

FIG. 14 is a diagram illustrating an example of temporary cassette arrangement data.

FIG. 15 is a diagram showing an example of cassette arrangement data.

FIG. 16 is a diagram illustrating an example of nozzle arrangement data.

FIG. 17 is a diagram illustrating an example of path data.

FIG. 18 is a diagram illustrating an example of suction order data.

FIG. 19 is a diagram showing an example of mounting order data.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... NC data creation apparatus, 10 ... Data input part, 11 ...
Component data storage unit, 12 coordinate data storage unit, 13 nozzle characteristic storage unit, 24 mounting time storage unit, 30 machine configuration storage unit, 20 component type management unit, 22 nozzle generation generation unit, 21 unit Type storage unit, 23 ... nozzle allocation storage unit,
31: work level management unit, 32: temporary nozzle arrangement storage unit, 3
3 Temporary cassette arrangement storage unit, 34 cassette arrangement management unit, 35 cassette arrangement storage unit, 36 nozzle arrangement management unit, 37 nozzle arrangement storage unit, 40 path generation unit, 41
... Path storage unit, 52. Mounting order management unit, 53. Mounting order storage unit, 50. Suction order management unit, 51. Suction order storage unit, 54. NC program generation unit.

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroaki Hasegawa 6-35 Kita Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation

Claims (13)

[Claims] 1. A nozzle for sucking an electronic component, a nozzle head for holding the nozzle, a moving unit for moving the nozzle head, a component supplying unit for supplying an electronic component to the nozzle, the nozzle and the moving unit And NC means for generating numerical control data for the control means of an electronic component mounting machine for mounting electronic components on a wiring board, the control means comprising: An electronic component data to be extracted and coordinate data indicating a position coordinate at which the electronic component is mounted; an extracting unit that extracts the electronic component data; a component data storage unit that stores the electronic component data; and a coordinate data storage unit that stores the coordinate data. A nozzle characteristic storage unit that stores a type of a nozzle that sucks each of the electronic components; a mounting machine data storage unit that stores configuration data of the mounting machine; A mounting time data storage unit for storing mounting time data required for mounting on the wiring board for each type of article; and NC data generating means for generating the numerical control data based on the data stored in each of the storage units. NC with
Data creation device. 2. The method according to claim 1, wherein the NC data creating means is configured to store the part data.
Nozzle for determining the type of nozzle required for sucking each component and the required number of nozzles based on the data in the data storage unit, the data in the nozzle characteristic storage unit, and the data in the mounting time data storage unit. An allocation generation unit, and a work level management unit that allocates and determines the types of nozzles and components to be mounted on each nozzle head so that the total mounting time in each nozzle head is as uniform as possible from the data in the nozzle allocation storage unit. A nozzle arrangement management unit that determines the arrangement of the nozzles assigned to each nozzle head in the nozzle head in the work level management unit, and a part for supplying a component assigned to each nozzle head in the work level management unit. Component supply that determines the arrangement of component supply means for each nozzle head based on data in the mounting machine data storage unit A stage arrangement management unit; and path data for generating path data for each of the nozzle heads to cross the wiring board based on the determined nozzle arrangement data, the component supply unit arrangement data, and the data in the coordinate data storage unit. A generation unit, a suction order management unit that determines a suction order for picking up components based on the path data, and a mounting order management unit that determines a mounting order for mounting components on the wiring board based on the path data. The NC data creation device according to claim 1. 3. The control means according to claim 1, wherein each information determined by said nozzle arrangement management section, said component supply section arrangement management section, said suction order management section, and said mounting order management section is used as said numerical control data. The NC data creation device according to claim 2, further comprising an NC program generation unit that generates an NC program for the program. Wherein said nozzle assignment generation unit, a request nozzle number N ₀ required for each type of nozzle, for each nozzle head the total parts number calculated from the component data assigned equally for each nozzle head 3. The NC data according to claim 2, wherein the NC data is calculated by the following equation from the total number of parts B ₀ , the number of nozzles C ₀ that can be mounted on the nozzle head, and the total number of parts A ₀ of the parts to be suctioned by the nozzle for each nozzle type. Creating device. N ₀ = (A ₀ / B ₀ ) × C ₀ (1) 5. The work level management unit calculates a total mounting time of electronic components assigned to each type of nozzle, and controls each nozzle so that the total mounting time of electronic components in each nozzle head is as uniform as possible. The NC data creation device according to claim 2, wherein the NC data creation device is assigned to each nozzle head. 6. The NC data creation apparatus according to claim 2, wherein the nozzle arrangement management unit determines the arrangement of the nozzles in each nozzle head so that the types of adjacent nozzles are not the same as much as possible. 7. When the nozzles are arranged on the circumference of the nozzle head, the nozzle arrangement management unit determines the nozzle arrangement so that nozzles of the same type are arranged facing each other as much as possible. 7. The NC data creation device according to 6. 8. The component supply means arrangement management section arranges each of the component supply means such that the mounting time of the electronic component from the component supply means assigned to each nozzle head to the wiring board is made as uniform as possible. 3. The NC data creation device according to claim 2, wherein: 9. The NC data creating apparatus according to claim 2, wherein the suction order management unit determines a suction order in an arrangement order of the electronic components arranged in each of the component supply units. 10. The NC data creating apparatus according to claim 2, wherein the mounting order management unit determines the mounting order in order from the mounting position closest to the last suction position in each of the paths. 11. A nozzle for sucking an electronic component, a nozzle head for holding the nozzle, a moving unit for moving the nozzle head, a component supply unit for supplying an electronic component to the nozzle, the nozzle and the moving unit. NC data creating method for creating numerical control data for the control means of an electronic component mounting machine for mounting an electronic component on a wiring board, comprising: a wiring board design information; Preparing data of the type of nozzle that sucks each electronic component, configuration data of the mounting machine, and mounting time data required for mounting on the wiring board for each type of electronic component; Extracting, from the information, component data to be mounted and coordinate data indicating the position coordinates at which the component is mounted; and the numerical control data based on the data. NC data creation method having a step of creating. 12. The step of creating the numerical control data includes the step of determining the type of nozzle required to suck each component from the component data, the data of the type of the nozzle, and the mounting time data. A step of determining the required number of nozzles; a step of allocating and determining the types of nozzles and components to be mounted on each nozzle head based on the determined type of nozzle and information on the required number of nozzles; Determining the arrangement of the assigned nozzles in the nozzle head, and the arrangement of the component supply means for supplying the components assigned to each nozzle head to each nozzle head based on the configuration data of the mounting machine. Determining, based on the determined arrangement of the nozzles and the arrangement of the component supply means and the coordinate data, A step of generating path data in which the sloW head crosses over the Wiring board; a step of determining a suction order for picking up components from the component supply unit based on the path data; and a step of transferring the component to the Wiring board based on the path data. Deciding a mounting order for mounting, arranging the nozzles in the nozzle head, arranging the component supply means with respect to each nozzle head, forming the numerical control data from the suction order, and the mounting order. The NC data creation method according to claim 11, comprising: 13. A method according to claim 1, wherein said control means includes a nozzle arrangement, a component supply means arrangement, a component suction order, and a component mounting order determined in said step of generating numerical control data. The NC data creation method according to claim 12, further comprising a step of generating a numerical control program to be executed.