JP3932751B2 - Production program creation device - Google Patents

Description

BACKGROUND OF THE INVENTION
The present invention relates to creation equipment production program that can automatically create a production program necessary for the production of itself according to the type of object to be produced on a production line.
[Prior art]
Conventionally, many production machines are arranged on a production line. These production machines operate based on vehicle type data sent from a host computer. The production machine selects a production program for the next vehicle to be produced based on the transmitted vehicle type data, and produces the vehicle based on the selected production program.
Therefore, if a production program is provided for each type of vehicle that is produced on the production line and 20 types of vehicles are produced on the production line, each production machine stores 20 types of production programs, You must also manage the program.
[Problems to be solved by the invention]
However, since such a conventional production program is configured as a series of programs for each type and specification of a vehicle to be produced, each production machine has a certain vehicle's specification as if a part of the specification is different . Even if most of the production programs are the same as the production programs of other vehicles, it is necessary to store them as separate production programs and to manage the production programs.
Also, if a new vehicle is to be produced, even if the vehicle can be produced with a production program that is largely the same as the existing production program, another production program for producing the vehicle will be provided. Need to create.
The present invention has been made to solve the problems of the conventional technology as described above, and automatically creates a production program for the production of the product according to the type of product produced on the production line. and an object thereof is to provide a preparation equipment of the production program that can be.
[Means for Solving the Problems]
To achieve the above object, the present invention is configured as follows for each claim .
According to one aspect of the present invention, a production data acquisition means for acquiring production data composed of the host computer as a plurality of bit strings, each production machine is placed on the production line, and are produced in the production machine For each type of product, an operation program storage means storing an operation program necessary for the production of the product and production data configured as the plurality of bit strings , a predetermined arbitrary bit is set as the first bit A category setting means for setting a plurality of categories consisting of a plurality of bit strings for use in creating the operation program by extracting a plurality of bit strings for any number of bits with different starting bits, and the category setting By combining arbitrary categories among a plurality of categories set by means, the operation program A plurality of bit strings for specifying at least “the position of program NO10” and a plurality of bit strings for specifying “the position of program NO1” to be used for the extraction of the program are created. Based on a plurality of bit strings for specifying the program and a plurality of bit strings for specifying "the position of program NO1," the corresponding operation program necessary for the production of the product produced on the production line is selected. extracted from the storage unit, by connecting the extracted operation programs, production programs used in the production of the material for each of the production machine each time the acquisition of the production data, and those produced in the production machine Production program creation means for creating each type.
The production data acquisition means acquires production data configured as a plurality of bit strings from a host computer, and the category setting means optionally selects any predetermined bit from the production data configured as a plurality of bit strings. By extracting a plurality of bit strings corresponding to the number of bits with different head bits, a plurality of categories made up of a plurality of bit strings for use in creating the operation program are set, and the production program creating means includes the category setting means A plurality of bit strings for specifying at least “the position of program NO10” and “the position of program NO1” to be used for extracting the operation program by combining arbitrary categories among the plurality of categories set by Create multiple bit strings to identify Based on the plurality of bit sequences used to identify a plurality of bit sequences used to identify the position "of arm NO10 and a" place of the program NO1 ", necessary for the production of what is produced in the production line, the relevant operation A program is extracted, and the extracted operation program is connected, and a production program used for production of the product is created for each production machine every time the production data is acquired. For this reason, it is not necessary to prepare a production program dedicated to each type of product to be produced for each type of production machine, and the storage capacity of the storage device that stores this production program is used efficiently. And the production program can be easily managed.
According to a second aspect of the present invention, in the production program creating apparatus according to the first aspect, the operation program storage means further includes an operation program necessary for production of an item produced on the production line. The production program creation means is configured to create a production program by connecting operation programs extracted from the operation program storage means for each operation of the production machine.
The production program creation device creates a production program by linking operation programs extracted from the operation program storage means for each operation of the production machine. Therefore, the production program for producing a certain item does not need to be prepared in the same number as the number of types of items manufactured in the production line, and the storage capacity of the storage device can be used efficiently. The production program can be easily managed.
【The invention's effect】
According to the invention concerning Claim 1 comprised as mentioned above, for the production of the thing for every kind of thing produced with the production machine arranged on the production line and the said production machine The necessary operation program is stored, and from the acquired production data configured as a plurality of bit strings, a bit string for an arbitrary number of bits starting with a predetermined arbitrary bit is used as the first bit. Extracting the operation program by setting a plurality of categories consisting of a plurality of bit strings for use in creating the operation program by combining a plurality of different categories and combining arbitrary categories among the set categories A plurality of bit strings for specifying at least “the position of program NO10” and “the position of program NO1” are specified. Of creating a plurality of bit strings, based on the plurality of bit sequences for identifying the plurality of bit strings for specifying the "place of the program NO10""place of the program NO1", necessary for the production of itself Since there is no need to prepare a series of dedicated production programs necessary for the production of each type of product to be produced for each type of production machine, The storage capacity of the storage device to be stored can be used efficiently, and the production program can be easily managed.
According to the invention described in claim 2, since the production program is created by connecting the operation programs extracted from the operation program storage means for each operation of the production machine, the production program for producing a certain object is: It is not necessary to prepare the same number as the number of types of products manufactured in the production line, the storage capacity of the storage device can be used efficiently, and the production program can be easily managed.
DETAILED DESCRIPTION OF THE INVENTION
It will be described below in detail with reference to such a production programming equipment to the present invention with reference to the drawings. FIG. 1 is a schematic block diagram of a control system in a general production line equipped with a production program creation device according to the present invention. The production line control system includes a program creation unit 101 and a program storage unit 103 as production management computers.
The program creation unit 101 generates a production program necessary for production of vehicles flowing through the production line based on vehicle type data configured as a plurality of bit strings input from a host computer (not shown) for each type of production machine, vehicle type, Created for each specification. The program storage unit 103 stores, for each production machine arranged on the production line, and an operation program necessary for production of the vehicle for each type and specification of the vehicle produced by the production machine. Is.
Further, the production line control system is provided with a stage computer for controlling the operation of the stage 1 to the stage 32 for each stage as a lower computer. These stage computers are connected to the program creation unit 101 and the program storage unit 103 via the network 105. The stage computer inputs the production program created by the program creation unit 101 and controls the operation of the production machine installed in each stage.
Note that a jig, a robot, and an NC machine tool are arranged on the stage 1, a jig and a robot are arranged on the stage 2, a jig and an NC machine tool are arranged on the stage 3, and the stage 4 31 is omitted, and a jig, a robot, and an NC machine tool are arranged on the stage 32. Accordingly, the operations of jigs, robots, NC machine tools, and the like provided on each stage are individually controlled by a stage computer installed on each stage.
Next, how the production program is created by the production program creation device configured as described above will be described in detail. First, when vehicle type data as shown in FIG. 2 is supplied from the host computer, the program creation unit 101 receives the vehicle type data. In the vehicle type data, the first 4 bits represent the vehicle type, the next 4 bits represent the vehicle type, the next 4 bits represent the destination, and the next 4 bits represent the specifications. The vehicle type data is supplied from the host computer in the order of production. Therefore, the program creation unit 101 stores the vehicle type data in the order of production.
The program creation unit 101 stores the received vehicle type data in a PLC (programmable controller) included therein. As shown in FIG. 3, the PLC is provided with ten registers each having an arbitrarily determined number of bits. The vehicle type data is stored in order from the first bit in each register of register number 1 to register number 10. Each register stores the order in which the vehicle type data is supplied, that is, the order of vehicle production. In the present embodiment, a register capable of storing 64 types of vehicle data is illustrated. In addition, the process which stores vehicle type data in PLC is performed for every stage .
Next, the program creation unit 101 creates the category table shown in FIG. In creating the category table, data set in advance for creating the category table is referred to.
The category is set based on the setting screen of the program creation unit 101 shown in FIG. On the setting screen, input is performed in the order of the stage name, reference vehicle type data, and category shown in the figure. For example, as shown in the figure, the stage name is # 1, the register number of the reference vehicle type data is 1, the number of stages is 5, the first bit of category 1 is 1, the first bit of category 2 is 5, the first bit of category 3 is 7, For example, the first bit of category 4 is 11 and the first bit of category 5 is 13. The category is set for each stage .
If the data as described above is input, if the same vehicle type data and vehicle type data shown in Figure 2 stored in the program creation unit 101 as the fifth data, on the basis of the vehicle type data, for example, the following Thus, the category table of FIG. 4 is created. First, stage 1 is designated on the category table setting screen, and register number 1 and stage number 5 are designated as reference vehicle type data (the fifth data of register number 1 in FIG. 3), so the stage name of the category table is 1. Reference vehicle type data is described as 0105. Next, since the first bit of category 1 is set to 1, category 1 is “0101” corresponding to 4 bits from the beginning of the model data stored as the fifth data of register number 1 in FIG. Since the first bit of category 2 is set to 5, category 2 has “0001” for 4 bits from the fifth bit of the vehicle type data set to category 2, and similarly category 3 has “0111”. ”, Category 4 is set to“ 0010 ”, and category 5 is set to“ 1011 ”.
Accordingly, the category table includes “stage name”, “reference vehicle type data”, “category 1, 2”, “category 3, 4, 5” in the order of “1”, “0105”, “0101010001”, “011100101011”. A number is entered. Similarly for the stage names 2, 3,..., 32, “stage name”, “reference vehicle type data”, “category 1 and 2”, “category 1 and 2” based on the reference vehicle type data and category set on the category table setting screen. Numbers are entered in the "Category 3, 4, 5" field.
When the category table is created, the program creation unit 101 creates the category manager shown in FIG. This category manager includes columns of “stage name”, “rank of program NO10”, and “rank of program NO1”. The "place of the program NO10" is, the numbers of category 1 and 2 of the category table for each stage, "01010001" is described as it is, the "place of the program NO1", the category of the category table for each stage 3 and 4, The number 5, “011100101011” is written as it is.
Then, the program creation unit 101 creates a production program by selecting an operation program stored in the program storage unit 103 based on the numbers described in the category manager. In order for the program creation unit 101 to select an operation program, settings are made to create the reference program table shown in FIG. This setting is performed based on the setting screen of the program creation unit 101 shown in FIG. On this setting screen, input is performed in the order of the stage name, the robot name, the position of program NO10, and the position of program NO1. For example, as shown in the figure, the stage name is # 1, the robot name is # 1, the program 1 at the position of program NO10 is “01010011”, and the program 1 at the position of program NO1 is “010100101111”. The reference program table is set for each production machine such as each robot, each NC, and each jig. In this configuration, position for eight different 10, since for one's place can be prepared 10 kinds respectively, can be selected for each robot, the NC, 80 kinds of programs for each machine the jigs of which production .
When the reference program table is set in this way, the operation programs E1 to E8 and F0 to F9 stored for each production machine in the program storage unit 103 are set to the program NO set on the reference program table setting screen. It is associated.
In the category manager of FIG. 6, since the program No. 10 in the rank of the program No. 10 is “01010011” and the program No. 1 in the rank of the program No. 1 is “010101010111”, the program creation unit 101 Then, based on the numbers set on the reference program table setting screen, the robot program NO12 is selected, and the operation programs E1 and F2 stored in the program storage unit 103 are combined to create one production program.
As described above, arbitrary bit data is extracted from the vehicle type data sent from the host computer, the categories are classified, the operation programs are extracted based on those categories, and the extracted operation programs are connected to form a series. Production program. Therefore, it is not necessary to prepare a production program for each type of product to be produced for each type of production machine, and the storage capacity of the storage device for storing the production program can be used efficiently. Program management is also easier.
[Brief description of the drawings]
FIG. 1 is a schematic block diagram of a control system in a general production line provided with a production program creation device according to the present invention.
FIG. 2 is a diagram illustrating an example of a data structure of vehicle type data.
FIG. 3 is a diagram showing a storage state of vehicle type data in the PLC.
FIG. 4 is a diagram showing a configuration of a category table created based on vehicle type data.
FIG. 5 is a diagram showing a category setting screen for creating a category table.
FIG. 6 is a diagram showing a configuration of a category manager.
FIG. 7 is a diagram showing a configuration of a reference program table.
FIG. 8 is a diagram showing a reference program table setting screen.
FIG. 9 is a diagram showing a configuration of a program manager.
[Explanation of symbols]
101 ... Program creation section,
103 ... program storage unit,
105. Network.

Claims (2)

Production data acquisition means for acquiring production data configured as a plurality of bit strings from a host computer;
For each production machine is placed on the production line, and, for each type of object to be produced in the production machine, and the operation program storage means for operation program is stored which is required for the production of itself,
Used to create the operation program by extracting a plurality of bit strings for any number of bits starting from a predetermined arbitrary bit from the production data configured as the plurality of bit strings, with different starting bits Category setting means for setting a plurality of categories consisting of a plurality of bit strings for performing,
Among a plurality of categories set by the category setting means, a combination of arbitrary categories and a plurality of bit strings for specifying at least “rank of program NO10” for use in extracting the operation program and “program NO1” And a plurality of bit strings for specifying “the position of program NO10” and a plurality of bit strings for specifying “the position of program NO1”. , necessary for the production of what is produced in the production line, the corresponding operation program is extracted from the operation program storage means, coupled the extracted operation program, the production program to be used for the production of itself for each of the production machine each time the acquisition of production data, and the type of object to be produced by the production machine your And the production program creating means to be created in,
An apparatus for creating a production program, comprising: In the production program creation device according to claim 1,
In the operation program storage means, an operation program necessary for production of a product produced on the production line is further stored separately for each operation of a production machine, and the production program creation means includes the operation program storage means. The production program is created by connecting the operation programs extracted from each production machine operation.

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