JP3057986B2 - Cycle diagram information creation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cycle diagram information creating apparatus which can automatically create cycle diagram information on a CAD / CAM system through an interference check of each operation part and an operation order validity check.

[0002]

2. Description of the Related Art In recent years, with the development of computers and graphic displays and their peripheral technologies, CAD (computer-aided design) / CAM in which a designer or the like performs everything from design to processing using a computer (computer) via graphic information. (Computer-assisted production) systems have been put into practical use and their application range is expanding.

[0003] As one application example, a system that conventionally creates a cycle diagram showing the operation order relation of each operation part such as a transfer apparatus and a processing apparatus on a CAD / CAM system (hereinafter simply referred to as a CAD system). There is.

[0004]

However, the conventional system for creating a cycle diagram on a CAD system mainly focuses on the creation of a figure.
No consideration is given to the actual situation of the interference of the operating part or the validity of the operation order of the operating part in consideration of the interference, and these contents are checked on a desk after the cycle diagram is created, or They simply checked the interference area using the interference simulation function. Therefore, those checks take time,
In particular, since cycle diagram information is frequently modified due to frequent design changes, the number of man-hours required to modify the cycle diagram tends to increase.

The present invention has been made in view of the above-mentioned problems of the prior art, and automatically creates cycle diagram information through an interference check of each operation part and an operation sequence validity check on a CAD system. It is an object of the present invention to provide a cycle diagram information creating device capable of performing the above.

[0006]

According to the present invention, there is provided an apparatus for creating cycle diagram information on a CAD / CAM system, the cycle diagram information representing an operation order relation of a plurality of operation parts. First setting means for setting shape data and action definition data of an operation part; and second setting means for sequentially setting cycle diagram data of the plurality of operation parts based on the setting data of the first setting means.
Setting means; third setting means for setting constraint condition data for another related operating part based on each setting data of the first setting means and the second setting means;
Verification means for verifying the cycle diagram data of the operation part to be verified based on the setting data of the setting means; and re-reproducing the cycle diagram data of the operation part verified when it is determined that the constraint condition data is not satisfied. It is characterized by having resetting means for setting and drawing output means for creating a cycle diagram based on the set cycle diagram data.

[0007]

In the present invention having the above-described configuration, when the shape data and the operation definition data of a plurality of operation parts are set by the first setting means, the second setting means sets the data based on the setting data. , Sequentially setting cycle diagram data of the plurality of operation parts. The third setting means sets constraint condition data for another related operating part based on the setting data of the first setting means and the second setting means. The verification means verifies the cycle diagram data of the operation part to be operation verified based on the constraint condition data. Thus, an interference check and an operation order validity check of each operation part are performed. When it is determined that the constraint data is not satisfied as a result of the verification, the resetting unit resets the cycle diagram data of the verified operation part. The drawing output means creates a cycle diagram based on the set cycle diagram data. In this way, as the cycle diagram information indicating the operation order relation of each operation part, the information obtained through the interference check and the operation order validity check of each operation part is automatically CAD / CAM.
It will be created on the system.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing a data structure of operation verification data, FIG. 3 is a diagram showing a data structure of cycle diagram data, and FIG. FIG. 5 is a diagram for explanation, FIG. 5 is a diagram showing a data structure of constraint condition data, and FIG.
FIG. 7 is a diagram showing a data structure of management data, FIG. 7 is an operation flowchart of the embodiment, FIG. 8 is an explanatory diagram of operation verification, and FIG. 9 is a diagram showing an example of a cycle diagram.

The cycle diagram information creation device shown in FIG. 1 is a system built on a CAD system, and includes an operation validation data creation unit 1 for creating operation validation data, and an operation validation data creation unit. An operation verification data storage unit 2 for storing, a cycle diagram data generation unit 3 for generating cycle diagram data, a cycle diagram data storage unit 4 for storing the generated cycle diagram data, and an operation verification for generating constraint condition data. A constraint data storage unit 6 for storing the created constraint data, a cycle diagram output unit 7 for creating a cycle diagram, and a management data storage unit 8 for storing management data. These are connected to the input / output interface 9. A keyboard 10, a display 11, and a printer 12 are connected to the input / output interface 9. Further, although not shown, the input / output interface 9 includes a command interpreter for interpreting a command input from the keyboard 10 and a data bus for transferring data. The operation verification unit 5 is started by a signal from the cycle diagram data generation unit 3. Note that the first setting means is an operation verification data creation unit 1
Thus, the second setting means, the verification means, and the resetting means are constituted by the cycle diagram data creating section 3, the third setting means is constituted by the operation verifying section 5, and the drawing output section is constituted by the cycle diagram drawing output section 7, respectively.

The operation verification data generated by the operation verification data generation unit 1 and stored in the operation verification data storage unit 2 has a data structure as shown in FIG. That is, the operation verification data includes the shape data and the operation definition data, and the shape data includes the three-dimensional shape data of the operation part (which is stored on the CAD layer) and its reference point. ing. The operation definition data includes an operation part name, a layer number (number of a layer to which the three-dimensional shape data of the operation part belongs), an operation type (rotation operation or linear motion), and an operation range (rotation range or linear motion). A range, a stroke of an operating part), an arrangement matrix (a matrix serving as a reference of the operating part), a posture matrix (a matrix representing the position and the posture of the operating part when the operating part operates), and a synchronous operation. , The operating part names of the other operating parts that perform the synchronous operation, the station numbers where the operating part names of the other operating parts that perform the synchronous operation exist, and the like. Operation verification data having such a data structure
Created for each operating part.

The operation verification data creating section 1 is a module for facilitating the construction of the operation verification data for the operation part where the operation verification is to be performed, and constructs the operation verification data and refers to it. It has functions and mainly plays the role of an interface with the user. Also, an operation verification data creation unit 1 and an operation verification data storage unit 2
Although not shown, corresponding to the fact that the operation verification data consists of shape data and operation definition data, respectively, a shape data setting unit and an operation definition data setting unit, and a shape data storage unit and an operation definition data storage Department.

The cycle diagram data created by the cycle diagram data creation unit 3 and stored in the cycle diagram data storage unit 4 represents the operation order relationship of each operation part, and this data is referred to as described later. To create a cycle diagram. The data structure of the cycle diagram data is as shown in FIG. That is, the cycle diagram data includes the operation part name () and the station number (the number of the station to which the operation part belongs).
(), Number of operation contents (), operation contents (), operation number (information for defining operation order relation between operation parts) (), operation start time (), and operation time ()
And interlock information (information for defining an operation order relationship between operation parts) (). Is lower-level information of the data, and usually two operation contents are assigned to one operation part name. For example, two operation contents, forward and backward, can be defined in the operation part name “Escape” (see FIG. 4). Further, the data of is defined as detailed information of the data. Cycle diagram data having such a data structure is similarly created for each operation part. FIG. 4 specifically illustrates the contents of such cycle diagram data. FIG. 4A is a diagram in the form of a cycle diagram, and FIG. 4B is a diagram in the form of a list. It was done. Here, an operation number of an operation content having an interlock relationship is described as the interlock information. Explaining with reference to the example of FIG. 4, the interlock is the “out” of the pusher.
The action is a restriction that the escape "forward" action is suspended from starting until it is completed.

The cycle diagram data creating section 3
This is a module for facilitating the construction of the cycle diagram data as described above, and has a function of receiving an operation part name and an operation range from the operation verification data stored in the operation verification data storage unit 2, as described above. And a function of passing information such as an operation part name, an operation content, an operation start time, and an operation time from the cycle diagram data stored in the cycle diagram data storage unit 4 to the operation verification unit 5. And a function for constructing and referring to cycle diagram data,
It has a function of performing an inspection process by referring to constraint data stored in the constraint data storage unit 6.

Further, the constraint condition data created by the operation verification unit 5 and stored in the constraint condition data storage unit 6 has a data structure as shown in FIG. That is, the constraint condition data includes an operation part name, an operation content number, an operation content, an operation prohibition time zone number, an operation prohibition time zone (held in the form of a start time and an end time), and the like. This constraint condition data is also created for each operating part.

The operation verifying unit 5 is a module for creating constraint condition data of an operation part, and has a function of referring to the operation verification data stored in the operation verification data storage unit 2 and a function of storing cycle diagram data. It has a function of referring to the cycle diagram data stored in the unit 4, a function of performing a simulation, a function of creating an interference area, and a function of constructing constraint condition data. Details of these functions will be described later.

A cycle diagram output unit 7
Is a module for creating a cycle diagram (for example, see FIG. 9) with reference to the cycle diagram data stored in the cycle diagram data storage unit 4.

Further, the management data stored in the management data storage section 8 is data for managing the above-described operation verification data, cycle diagram data, and constraint condition data, as shown in FIG. It has a data structure. That is, the management data includes the number of stations, the station number, the number of operating parts, the above-described operation verification data, cycle diagram data, and constraint condition data. Only one piece of this management data is created.

The apparatus thus constructed operates as follows according to the flowchart of FIG. First, when the system is started, the operation verification data creating unit 1 operates based on input data from the keyboard 10 to execute operation verification data for an operation part to be verified (see FIG. 2).
Is created, and the created operation verification data is stored in the operation verification data storage unit 2 (S1).

Then, when the cycle diagram data creation section 3 is started, the cycle diagram data creation section 3 is stored in the operation verification data storage section 2 in order to create cycle diagram data (see FIG. 3). By referring to the operation definition data in the existing operation verification data, all the operation part names and operation ranges are extracted, and for each extracted operation part name, the operation content, operation number, operation start time, operation time, interlock Information (hereinafter, these data are referred to as information group a) is set, and the set information group a is stored in the cycle diagram data storage unit 4 according to the data structure of the cycle diagram (S2). It is assumed that the information group a can be set for items other than the operation part names extracted from the operation definition data (that is, operation parts for which operation verification is not performed).

Then, the cycle diagram data creating section 3 determines whether or not all the cycle diagram data has been created (S3). If the result of this determination is that all of the cycle diagram data has not been created, the operation proceeds. The verification unit 5 is activated, and information such as an operation part name, an operation content, an operation disclosure time, and an operation time is provided to the verification unit 5. Then, the operation verification unit 5 sets the constraint condition data (see FIG. 5) based on the information, and stores the set constraint condition data in the constraint condition data storage unit 6 (S4).

The contents of step 4 will be described in more detail with reference to FIG. Here, for the sake of simplicity, only the two operation parts P and Q will be considered, and the operation content of the operation part P from the original position to the operation side position is “forward”, and the reverse operation is “retreat”. In addition, the operation content in which the operation part Q moves from the original position to the operation side position is “out”, and the reverse operation is “return”. An area created by the operation of the operating part P is defined as an operating range area p, an area created by the operation of the operating part Q is defined as an operating range area q, and A region where the range region q overlaps is referred to as an interference region r. Now, on the premise of the above, the operation verification unit 5 refers to the operation verification data stored in the operation verification data storage unit 2 at the time of startup, and stores the operation range regions p and q and the interference region r inside. Create with. When the “forward” operation of the operation part P is defined as follows by the cycle diagram data creation unit 3, the data of the operation part P Operation contents Operation start time Operation time Advance 5 seconds 4 seconds The operation verification unit 5 Operating part P based on data
Calculates a time zone during which the vehicle passes through the interference region r, and uses the calculated time zone as constraint condition data for the operating part Q.

Then, the cycle diagram data creation unit 3 sets an information group a of other operation part names to be verified and stores it in the cycle diagram data storage unit 6 (S5). Data storage unit 6
Information group a with reference to the constraint data stored in
Is verified, that is, whether or not the operation is set in the operation prohibition time zone is checked (S6). For example, suppose that the constraint condition data of the operation prohibition start time of 3 seconds and the end time of 9 seconds is given to the “forward” operation with the operation part name of escape.
The information group a belonging to the operation content of “forward” must be set in such a manner as to avoid the operation prohibition time zone, and the “forward” operation has a range of 0 to 3 seconds or 9 seconds or more. The range becomes possible (see FIG. 4).

Then, the cycle diagram data creation unit 3 determines whether the result of the inspection processing in step 6 is OK (S7). If the result of this determination is OK, the process returns to step 3 to create cycle diagram data. If the processing has not been completed, the operation verification unit 5 is activated to update the constraint condition data. In other words, by adding one cycle diagram data, the constraint condition data for another operating part name is updated. On the other hand, if the result of the determination in step 7 is NG, the error content is displayed on the display 11 or the like (S
8) Then, the information group a is reset (S9), and step 6 is performed.
Return to

That is, in short, using the above-described example with reference to FIG. 8, the cycle diagram data creation unit 3 performs the “out” operation and the “return” operation of the operation part Q following the “forward” operation of the operation part P. When setting the operation, the operation setting of the operation part Q is performed so as to avoid the time zone in which the operation part P passes through the interference region r with reference to the above-described constraint data for the operation part Q. When the “out” operation and the “return” operation of the operating part Q are set, the operation verifying unit 5 refers to the information and refers to the “retreat” of the operating part P following the “return” operation of the operating part Q. The cycle diagram data creation unit 3 sets the “retreat” operation of the operation part P so as to conform to the constraint data.

Thereafter, the cycle diagram output unit 7
Is activated, the cycle diagram output unit 7
Referring to the cycle diagram data constructed so far stored in the cycle diagram data storage unit 4, a cycle diagram is created and output to the display 11 and the printer 12. An example of the cycle diagram is shown in FIG.

Therefore, according to the present embodiment, by linking with the cycle diagram information and accurately considering the passage of time, the setting of the cycle diagram data and the operable time zone (restriction condition Since the data is created, it is not necessary to separately perform an operation part interference check and an operation order validity check based on the cycle diagram information, and the same applies to the correction of the cycle diagram information. Therefore, it becomes possible to easily output a drawing of the cycle diagram based on the content of the cycle diagram information whose validity is guaranteed. Particularly, in the case of a cycle diagram in which design changes frequently occur and there are many correction opportunities, the cycle diagram is used. Will be greatly reduced.

[0027]

As described above, according to the present invention, since the setting of the cycle diagram data and the creation of the constraint data of the related operating parts are performed simultaneously, the CAD is used.
The system can automatically create cycle diagram information that has undergone an interference check of each operation part and an operation sequence validity check, thereby greatly reducing the number of man-hours required to modify a cycle diagram accompanying a design change.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a data structure of operation verification data;

FIG. 3 is a diagram showing a data structure of cycle diagram data;

FIG. 4 is a diagram provided for explaining cycle diagram data.

FIG. 5 is a diagram showing a data structure of constraint condition data.

FIG. 6 is a diagram showing a data structure of management data.

FIG. 7 is an operation flowchart of the embodiment.

FIG. 8 is an explanatory diagram of operation verification.

FIG. 9 shows an example of a cycle diagram.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Operation verification data preparation part (1st setting means) 2 ... Operation verification data storage part 3 ... Cycle diagram data preparation part (2nd setting means, verification means, resetting means) 4 ... Cycle diagram data storage part 5 ... Operation verification unit (third setting means) 6 ... Constraint condition data storage unit 7 ... Cycle diagram diagram output unit (drawing output unit) 8 ... Management data storage unit

Claims (1)

(57) [Claims] 1. An apparatus for creating, on a CAD / CAM system, cycle diagram information representing an operation order relationship between a plurality of operation parts, wherein a first setting for setting shape data and operation definition data of the plurality of operation parts. Means, second setting means for sequentially setting cycle diagram data of the plurality of operation parts based on the setting data of the first setting means, and setting data of the first setting means and the second setting means Setting means for setting constraint condition data for another relevant operating part based on the data, and verification for verifying cycle diagram data of the operating part to be verified based on the setting data of the third setting means. Means, and when it is determined that the constraint data is not satisfied, cycle diagram data of the verified operation part And resetting means for resetting, on the basis of the cycle diagram data set, the cycle diagram information generating apparatus characterized by having a drawing output means for creating a cycle Diagram.