JP3200116B2 - Operation simulation apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an operation simulation apparatus and method, and more particularly, to an operation simulation apparatus and method using an information processing system.

[0002]

2. Description of the Related Art As a method of simulating the operation of a mechanism using an information processing system such as a CAD, a motion equation expressing the mechanism is assembled on a computer to obtain the motion of a component constituting the mechanism by solving the equation. Exists.

[0003]

In the calculation of the amount of interfering rotation operation, if the shape to be acted and the interfering object shape already intersect, it is recognized that interference has already occurred, and the calculation of the amount of interfering rotation operation is performed accurately. Can not.

[0004]

According to the present invention, there is provided an operation simulation apparatus comprising: an operation target shape indicating means for indicating an operation target shape from a figure displayed on a display means; and a rotation center of the operation target shape. Rotation center indicating means for performing, a rotation direction indicating means for indicating a rotation direction of the operation target shape, an interference target shape indicating means for indicating an interference target shape from among the figures displayed on the display means, The interference determining means for determining whether the target shape and the interference target shape interfere with each other, and rotating the operating target shape when it is determined that the operation target shape and the interference target shape interfere with each other. An operation target shape rearrangement unit that rearranges the position to not interfere with the movement, the indicated operation target shape or the rearranged operation target shape, and the rotation center, A serial direction of rotation, on the basis of said collision target shape, and an interference rotation operation calculating means for calculating an interference rotation operation.

[0005] In the operation simulation method of the present invention,
An operation target shape instructing step of instructing an operation target shape from among figures displayed on the display means, a rotation center instructing step of instructing a rotation center of the operation target shape, and instructing a rotation direction of the operation target shape A rotation direction instructing step; an interference target shape instructing step of instructing an interference target shape from among the figures displayed on the display means; and determining whether the actuation target shape and the interference target shape interfere with each other. An interference determining step to be performed, and when the determining unit determines that the operation target shape and the interference target shape are interfering with each other, the repositioning unit rearranges the operating target shape to a position that does not interfere with the rotational movement. A shape rearrangement process;
An interference rotation operation calculating step of calculating an interference rotation operation by a calculation unit based on the specified operation target shape or the rearranged operation target shape, the rotation center, the rotation direction, and the interference target shape; And

In the operation simulation device of the present invention,
Instruct the operation target shape, indicate the rotation center of the operation target shape, indicate the rotation direction of the operation target shape, indicate the interference target shape, determine whether the operation target shape interferes with the interference target shape, If there is interference, the operation target shape is rearranged, and the interference rotation operation is calculated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 2 is an operation simulation of an embodiment of the present invention.
1 is a block diagram illustrating a configuration of an information processing system to which an application method is applied. This information processing system comprises a central processing unit 17 for executing an operation simulation process, an element, or a set (hereinafter referred to as a set) of one or more elements, or one or more elements. A set of elements (hereinafter, parts) corresponding to parts is displayed as an operation target shape (driver), input information (moving direction, angle, moving distance) information is displayed, processing results are displayed, and details of the processing are displayed. , Or a display device 18 for displaying a menu for selecting an operation method as shown in FIG. 7, a keyboard and a mouse, etc., and inputting designation information, information and menu selection necessary for operation. An input device 19 for inputting an instruction or other instructions, a program for an operation procedure described later, and CAD
Data corresponding to the graphic element (for a two-dimensional line segment, the starting point
The coordinates of the end point, in the case of a two-dimensional arc, the coordinates and rotation direction of the start point, end point, and center, and in the case of a two-dimensional circle, sufficient geometric information and element information such as the coordinates and radius of the center to determine the graphic element. (Storage and arrangement information thereof), calculation information such as specified information and operation amount, data (operation macro) information combining operation necessary for operation and specified information, flag of state information, etc. The main parts of the device 20 and the information capturing device 21 for reading a program such as an operation procedure from an external storage device and storing the program in the storage device 20 are configured.

In this embodiment, a program is read from an external storage medium, such as a magnetic tape or a floppy disk, into a storage device 20, such as a semiconductor RAM or a magnetic disk, through an information fetching device 21 and a CAD such as a shape to be operated. The graphic element is displayed on the display device 18 and data corresponding to the displayed CAD graphic element (the coordinates of the start point / end point for a two-dimensional line segment, the start point / end point / center for a two-dimensional arc). Coordinates and rotation direction, for a two-dimensional circle,
Geometric information and set of elements and their placement information sufficient to determine figure elements such as center coordinates and radius)
Is stored in the storage device 20, the designation information necessary for the operation is designated from the input device 19, the operation result is redisplayed on the display device 18, and the arrangement information of the operation target shape of the storage device 20 is changed. The information specified in the device 20 and the calculation result such as the operation amount are stored. Data (operation macro) obtained by combining operations and designation information necessary for the operation described above can be stored in the storage device 20. The operation macro is referred to by the central processing unit 17 and the operation of the operation target shape is continuously performed in the order specified based on the flow of FIG. 1, thereby simulating the movement of the mechanism and the like. it can. By using the operation macro, the processing can be performed in a batch format. In this case, the display device 11 is not particularly necessary, and the arrangement data on the storage device 20 is updated.

FIG. 1 shows a schematic configuration of an operation simulation system, and the operation will be described based on the above-described configuration. That is, in FIG. 1, what is indicated by reference numeral 2 is an operation method selection step. In a state in which a graphic such as a CAD graphic to be operated is displayed on the display device 18 (step 1 of initial arrangement), for example, the menu item of the selection item is displayed. Several operation methods are displayed, and a mouse or a key of the input device 19 is displayed.
The selection and instruction information is given from the board, and the operation method is selected. The selection of the operation method is one of translation, rotation, translation along a CAD graphic element (hereinafter, element), interference translation, interference rotation, and interference translation along the element.
A menu (ROT, MOV, P
AR, IROT, IMov, IPAR) input device 19
Specify using the mouse or keyboard. Where: translation translates the CAD figure; rotation rotates the CAD figure; translation along the element translates the CAD figure along the element; and interference translation translates the CAD figure. Translates until it hits another CAD figure, Interference rotation rotates the CAD figure until it hits another CAD figure, Interference translation along the element moves the CAD figure to another CAD figure
This means that the object moves in parallel along the element until it hits the AD figure.

In the operation method determining step 3, the central processing unit 17 sorts the processing to be executed next according to the operating method specified in the operating method selecting step 2. That is, when the translation operation (MOV) is designated, a process for defining the translation operation is executed next, and the rotation operation (RV) is performed.
If OT) is specified, a process for defining the rotation operation is executed next, and the translation operation along the element (P
AR) is specified, a process for defining an operation of translation along the element is executed next, and if an operation of interference translation (IMOV) is specified, a process for defining operation of interference translation is performed. Is executed next, and the operation of the interference rotation (IRO
If T) is specified, a process for defining the operation of the interference rotation is executed next, and if the operation of interference translation along the element (IPAR) is specified, the operation of interference translation along the element is performed. Next, a process for defining is executed.

In step 4 of the definition of the translational operation, an element or a set of elements composed of one or more elements (hereinafter referred to as a set), or a set of elements composed of one or more elements and corresponding to a part ( Hereafter, the part (part) is used as the operation target shape (driver).
Designation is performed using the input device 19, the movement vector is specified by a movement direction angle, a movement distance, and the like, and the specification information is stored in a predetermined area of the storage device 20. When the driver is designated, the display device 18 changes the display brightness and the like of the elements constituting the driver, so that
It is possible to confirm whether or not the driver has been correctly specified. In the translation operation step 5, the central processing unit 17 performs a calculation for translating the driver by referring to the driver and the definition information such as the movement vector defined (specified) in the above step.

In step 6 of defining the operation of rotation, FIG.
(B) In the display screens as shown in FIGS. 8 (a)-(b) and FIGS. 9 (a)-(b), an element, a set or a part is designated as a driver using the input device 19. , A rotation center, and a rotation angle, and the specified information is stored in a predetermined area of the storage device 20. When the driver is specified, it is possible to confirm whether the driver has been correctly specified by changing the display brightness and the like of the elements constituting the driver on the display device 18.

The rotation operation calculation step 7 includes a driver, a rotation center, and a rotation center based on the information defined in the above steps.
The central processing unit 17 performs calculation for rotating the driver with reference to the definition information such as the rotation angle. In step 8 of the definition of translation along the element, the element or set or part is designated as the driver, the element to which the driver moves (reference element), the movement start reference position on the reference element, the movement direction. , The moving distance, etc., are designated using the input device 19, and the designated information is stored in a predetermined area of the storage device 20. When the driver is specified, it is possible to confirm whether the driver has been correctly specified by changing the display brightness and the like of the elements constituting the driver on the display device 18. In step 9 of the translation operation along the element, the central processing unit 17 is referred to based on the information defined in the above steps, referring to the driver, the reference element, the movement start reference position, the movement direction, the movement distance, and other definition information. In step (1), a calculation is performed to translate the driver from the movement start reference position by the movement distance on the reference element.

In step 10 of the definition of the operation of the interference translation, an element or set or part as a driver, an element or set or part as a shape to be interfered (stopper), and a movement direction are input to an input device 19.
, And an interference calculation target element is specified as necessary, and the specified information is stored in a predetermined area of the storage device 20. When the interference calculation target element is not specified, as the standard value, each n1 element including the element selected by the input device 19 such as a mouse when the driver or the stopper is specified and connected before and after the element is set as the interference target element. . The interference target element can be specified in the form of all the elements belonging to the specified part, the specified n2 element, or the like.
When specifying the element for which interference is to be calculated, use the driver
Alternatively, it can be specified for one or both of the stoppers. When the driver is designated, the display device 1
By changing the display brightness and the like of the elements constituting the driver in step 8, it is possible to confirm whether or not the driver has been correctly specified. Similarly, at the designated point in time, the display brightness of the elements constituting the stopper is changed.

The interference translation step 11 refers to the specified driver and stopper, the movement direction, and, if necessary, the interference calculation target element of the information stored in the storage device 20 specified in the above step. Accordingly, the central processing unit 17 performs an interference calculation for obtaining a moving amount until the driver interferes with the stopper.

FIG. 16 shows an interference translation operation definition step 10, an interference translation operation calculation step 11, and an operation result display registration step 16 which are shifted from the operation method selection step 2 of FIG. 1.
It is a flowchart explaining in detail.

In the interference translation operation instructing step 1, the operation of the interference translation is instructed by using the mouse or keyboard of the input device 19. In the driver instruction step 2, an element, a set, or a part is designated as a driver using the input device 19 such as a mouse. In the step 3 for instructing the direction of movement of the driver, the direction of movement of the driver is designated by using an input device 19 such as a keyboard or the like with respect to a reference axis such as a vector or X axis. In the stopper designating step 4, an element, a set, or a part is designated as a stopper by using a mouse keyboard of the input device. The specified information is stored in a predetermined area of the storage device 20. Interference translation calculation step 5
In the central processing unit 17, the driver interferes with the stopper by referring to the designated driver and stopper, the moving direction, and the interference calculation target element as necessary, which are stored in the storage device. To calculate the amount of movement up to. The means 6 for activating and displaying the driver based on the result calculated by the interference translation calculation step moves the driver based on the result calculated by the interference translation calculation step. Driver
Is displayed again on the display device 18 and the information of the change in the arrangement is stored in the storage device 2 such as a memory or a magnetic disk.
0 is reflected and stored in the arrangement information existing at 0.

The driver instruction step 2, the driver's movement direction instruction step 3 and the stopper instruction step 4 can be processed in a different order. Step 12 of the definition of the interference rotation operation
In this case, an element or set or part as a driver, an element or set or part as a stopper, a rotation center and a rotation direction are designated by using the input device 19, and an interference calculation target element is specified as necessary. specify. When the interference calculation target element is not specified, as the standard value, each n1 element including the element selected by the input device 19 such as a mouse when the driver or the stopper is specified and connected before and after the element is set as the interference target element. . As the interference target elements, all elements belonging to the specified part, the specified n
It can be specified in the form of two elements. When designating an interference calculation target element, one or both of a driver and a stopper can be designated. When the driver is designated, the display device 1
By changing the display brightness and the like of the elements constituting the driver in step 8, it is possible to confirm whether or not the driver has been correctly specified. Stopper
Similarly, at the designated time, the display brightness of the elements constituting the stopper is changed.

In the interference rotation step 13, the driver interferes with the stopper in the central processing unit 17 by referring to the designated driver, stopper, moving direction, and, if necessary, the element to be subjected to interference calculation. An interference calculation is performed to find the amount of rotation before the rotation.

Next, FIG. 17 is a flowchart illustrating in detail the interference rotation operation definition step 12, the interference rotation operation calculation step 13, and the operation result display registration step 16 which are shifted from the operation method selection step 2 in FIG. The processing will be described in detail.

In the interference rotation operation instructing step 1, an operation of the interference rotation is instructed by using the input device 19 such as a mouse.
In the driver instruction step 2, an element, a set, or a part is designated as a driver by using a keyboard or a mouse of an input device. The specified information is stored in a predetermined area of the storage device 20. In the rotation center designating step 3 of the driver, the coordinates of the rotation center of the driver are designated by using a keyboard or the like of the input device. The rotation direction instruction step 4 specifies the rotation direction of the driver using the input device 19 such as a mouse. In the rotation direction automatic setting step 5, a flag for automatically setting the rotation direction is set by using the input device 19 such as a keyboard. In the stopper designating step 6, an element, a set or a part is designated as a stopper using the input device 19 such as a mouse. The specified information is stored in a predetermined area of the storage device 20. When the definition is completed, a calculation process is performed. The interference rotation calculation step 7 is performed by referring to the designated driver and stopper, the rotation center, the rotation direction or the flag for automatically setting the rotation direction, and the interference calculation target element as necessary. In the above, an interference calculation for obtaining a rotation angle until the driver interferes with the stopper is performed. Step 8 of operating and displaying the driver based on the result calculated in the interference rotation calculating step
Rotates the driver based on the result calculated by the interference rotation calculation step. The driver is re-displayed on the display device 18 and the information on the change in the arrangement is reflected on the arrangement information existing in the storage device 20 such as a memory or a magnetic disk and stored.

The driver instruction step 2, the driver rotation center instruction step 3, and the rotation direction instruction step 4
Alternatively, the rotation direction automatic setting step 5 and the stopper-instruction step 6 can be processed in a different order.

In step 14 of defining the operation of the interference translation along the element, the element or set or part as a driver, the element or set or part as a stopper, the reference element and the movement on the reference element. A start reference position, a moving direction, and the like are designated using the input device 19. The specified information is stored in a predetermined area of the storage device 20. When the interference calculation target element is not specified, the n1 elements including the element selected by the input device 19 such as the mouse when the driver or the stopper is specified and connected before and after the specified element are set as the standard values. It is stored in the storage device 20. As the interference target elements, all elements belonging to the specified part, the specified n2
It can be specified in the form of an element. When designating an interference calculation target element, one or both of a driver and a stopper can be designated. When the driver is designated, the display device 18 is displayed.
By changing the display brightness and the like of the elements constituting the driver, it is possible to confirm whether or not the driver has been correctly specified. Similarly, at the designated point in time, the display brightness of the elements constituting the stopper is changed.

The step 15 of calculating the translation of the interference along the element includes defining information such as a specified driver, a reference element, a movement start reference position, a movement direction, a stopper, and an element to be subjected to interference calculation, which are defined in the storage device. By referring to the information, the central processing unit 17 performs an interference calculation for obtaining a moving amount until the driver interferes with the stopper.

Next, FIG. 18 shows an operation method selection step 2 of FIG. 1 and an interference translation operation definition step 14 along the element.
And a step 15 for calculating an interference translation operation along the element and a display registration step 16 of the operation result will be described in detail with reference to the flowchart.

In step 1 for instructing the interference translation operation along the element, the operation of the interference translation is instructed by using the input device 19 such as a mouse. In the driver instruction step 2, an element, a set, or a part is designated as a driver using the input device 19 such as a mouse. The reference element designation step 4 designates an element using the input device 19 such as a mouse. In the movement start reference position designating step 5 on the reference element, the movement start reference position is specified using the input device 19 such as a mouse. The moving direction instruction step 6 specifies the moving direction of the driver using the input device 19 such as a mouse. In the stopper designating step 3, an element, a set or a part is designated as a stopper using the input device 19 such as a mouse.
The specified information is stored in a predetermined area of the storage device 20. The next defined information is calculated in the next step. The interference translation calculation step 7 along the element is performed by referring to the designated driver and stopper, the reference element, the movement start position and the movement direction on the reference element, and, if necessary, the interference calculation target element. In the device 17, an interference calculation is performed to determine the amount of movement of the driver along the reference element until the driver interferes with the stopper. Actuating and displaying the driver based on the result calculated by the element interference translation calculation step moves the driver based on the result calculated by the element interference translation calculation step. The driver is re-displayed on the display device 18, and the information of the change in the layout is reflected on the layout information existing in the storage device 20 such as a memory or a magnetic disk and stored. The driver instruction step 2, the reference element instruction step 4, the movement start reference position instruction step 5 on the reference element, the driver's movement direction instruction step 6, and the stopper instruction step 3 can be processed in a different order.

In the display / registration step 16, the driver is moved by the operation amount calculated in the above-described steps. The driver is re-displayed on the display device 18 and the information on the change in the arrangement is reflected on the arrangement information existing in the storage device 20 such as a memory or a magnetic disk.
It is memorized. The state immediately before the operation is stored in the storage device 20.
By saving and giving a return instruction from the input device 19, the driver can be returned to the arrangement before operation. By using this function, even if the driver is activated with the wrong definition, it is possible to recover with a simple operation.

Next, the interference calculation in the operation simulation method of the embodiment constructed as described above will be described with reference to FIG.
(A) and (b), (a) to (c) of FIG. 4, (a) to (c) of FIG. 5, (a) and (b) of FIG. 7, and (a) and (b) of FIG. 8, (a) and (b) of FIG. 8, and (a) and (b) of FIG. 9, (a) and (b) of FIG. 10, (a) and (b) of FIG. This will be further described with reference to FIG.

In order to emphasize the speed of the interference calculation performed in the interference translation step 7 or the interference rotation step 9 in FIG.
As described above, the target element can be specified. The interference calculation is performed between the driver-side interference target element and the stopper-side interference target element.

First, an interference calculation method in the interference translation step 7 will be described. Driver-1 element and stopper
The interference distance when one element interferes is as follows from (a) to
The minimum distance is the distance of (e). (A) The starting point of the driver-side element moves,
Distance da when interference occurs on the element on the stopper side (other than the start point and end point). For example, as shown in FIG. 3A, when the moving direction 2 of the driver 1 is at an angle t with respect to the axis 3, a straight line 5 having an angle t passing through the starting point 4 of the driver 1
7 is determined, and the distance between the starting point 4 of the driver 1 and the straight line 5 and the intersection 6 with the stopper 6 is defined as da. If there are a plurality of intersections, the point closest to the starting point 4 is defined as the intersection 7. (B) The end point of the driver-side element moves,
Distance db when interfering with the element on the stopper side (other than the start point and end point). For example, as shown in FIG. 3B, when the moving direction 2 of the driver 1 is at a direction of an angle t with respect to the axis 3, a straight line 5 having an angle t passing through an end point 4 of the driver 1 and a stopper 6 are provided. Is obtained, and the end point 4 of driver-1 is obtained.
The distance at the intersection 7 between the straight line 5 and the stopper 6 is db. When there are a plurality of intersections, the point closest to the end point 4 is defined as the intersection 7. (C) The distance dc when a point (other than the start point and end point) on the element on the driver side moves and interferes with the element on the stopper side (other than the start point and end point). For example, as shown in FIG. 4A, when both elements on the driver-side stopper-side are arcs or circles, the stopper-1
The radius 6 from the center 2 of the arc of the circle is the sum r1 + r2 of the radius r1 of the arc of the stopper-1 and the radius r2 of the arc of the driver-3, and the straight line 6 of the locus drawn by the center 5 of the arc of the driver 3.
Of the arc 3 of the driver 3 and the intersection 7
Is dc. If there are multiple intersections, center 5
The point closest to is designated as intersection 7. (D) Distance dd when a point (other than the start point and end point) on the element on the driver side moves and interferes with the start point on the element on the stopper side. For example, as shown in FIG. 4B, when the moving direction 2 of the driver-1 is at the angle t with respect to the axis 3, the straight line 5 of the angle t passing through the starting point 4 of the stopper and the driver-1 Is determined, and the distance between the starting point 4 of the stopper and the intersection 6 is dd. If there are a plurality of intersections, the point closest to the starting point 4 is defined as the intersection 6. (E) Distance de when a point (other than the start point and end point) on the driver-side element moves and interferes with the end point on the stopper-side element. For example, as shown in FIG. 4C, when the moving direction 2 of the driver-1 is at the angle t with respect to the axis 3, the straight line 5 of the angle t passing through the end point 4 of the stopper and the driver-1 Is determined, and the distance between the end point 4 of the stopper and the intersection 6 is de. When there are a plurality of intersections, the point closest to the end point 4 is defined as the intersection 6. (A) to (c) for all combinations of interference target elements on both the driver side and the stopper side
Calculate the interference distance for all cases. However, (a)
Some of (c) to (c) cannot determine the interference distance. The minimum distance among all the obtained interference distances is set as the movement amount of the interference translation operation.

Next, an interference calculation method in the interference rotation step 9 will be described. The interference angle when the driver-1 element and the stopper-1 element interfere is as follows (a).
(E) is the minimum angle. (A) The starting point of the driver-side element rotates,
Angle da when interference occurs on the element on the stopper side (other than the start point and end point). For example, as shown in FIG. 5A, the intersection 6 of the circle 4 of the locus drawn by the starting point 2 of the driver-1 around the rotation center 3 of the driver-1 and the stopper 5 is obtained.
The angle from the starting point 2 of the driver-1 to the intersection 6 around the designated rotation direction is defined as da. When there are a plurality of intersections, a point having the smallest central angle around the rotation direction from the starting point 2 is defined as the intersection 6. (B) The end point of the driver-side element rotates,
Angle db at the time of interference on the element on the stopper side (other than the start point and end point). For example, as shown in FIG. 5 (b), the intersection point 6 of the circle 4 of the locus drawn by the end point 2 of the driver-1 around the rotation center 3 of the driver-1 and the stopper 5 is obtained.
The angle from the end point 2 of the driver-1 to the intersection 6 around the designated rotation direction is db. If there are multiple intersections,
A point having the smallest center angle around the rotation direction from the end point 2 is defined as an intersection 6. (C) An angle dc at which a point (other than the start and end points) on the driver-side element rotates and interferes with the stopper-side element (other than the start and end points). For example, as shown in FIG. 5 (c), when both elements on the driver-side stopper-side are arcs or circles, the stopper-
The radius from the center 2 of the arc 1 is the sum r1 + r2 of the radius r1 of the arc of the stopper-1 and the radius r2 of the arc of the driver-3.
And the intersection point 7 of the circle 6 of the locus drawn by the center 5 of the arc around the center of rotation of the driver 3 is determined from the center 5 of the arc of the driver 3 to the intersection 7 around the designated rotation direction. Is dc. When there are a plurality of intersections, a point having the smallest center angle around the rotation direction from the center 5 is defined as the intersection 7. (D) The angle dd when a point (other than the start point and end point) on the driver-side element rotates and interferes with the start point on the stopper-side element. For example, as shown in FIG. 6A, an intersection 6 between the driver 5 and the circle 5 passing through the starting point 4 of the stopper 3 centering on the rotation center 2 of the driver 1 is determined, and the intersection 6 is designated from the intersection 6. Stopper around rotation direction-3
Let dd be the angle up to the starting point 4 of. When there are a plurality of intersections, a point having the smallest central angle from the starting point 4 in the direction opposite to the rotation direction is defined as the intersection 6. (E) An angle de when a point (other than the start point and end point) on the driver-side element rotates and interferes with the end point on the stopper-side element. For example, as shown in FIG. 6B, an intersection 6 between the driver 5 and the circle 5 centering on the rotation center 2 of the driver 1 and passing through the end point 4 of the stopper 3 is determined. The angle around the rotation direction to the end point 4 of the stopper is de. If there are multiple intersections,
A point having the smallest central angle in the direction opposite to the rotation direction from the end point 4 is defined as an intersection 6. (A) to (e) for all combinations of interference target elements on both the driver side and the stopper side
Calculate the interference angle for all cases. However, (a)
In some cases (e), the interference angle cannot be determined. The minimum angle among all the obtained interference angles is defined as the rotation angle of the interference rotation operation.

Next, a description will be given of an interference calculation method in the interference translation step 15 along the element. When the reference element is a line segment, the distance until the driver interferes with the stopper is calculated by the above-described calculation method of the interference translation. If the distance is longer than the length of the line segment, no interference occurs.If the distance is shorter than the length of the line segment. Is determined to be interfering. When the reference element is an arc, the length of the arc is compared with the minimum distance of the following distances (a) to (e). If the distance is longer than the length of the arc, no interference occurs. If the length is shorter than the length, it is determined that interference occurs. The calculation is repeated for each reference element until the driver interferes with the stopper. (A) The moving distance da when the starting point of the element on the driver side moves and interferes with the element on the stopper side (other than the starting point and the ending point). For example, as shown in FIG. 19A, when the driver 1 moves along the reference element 2, the intersection 6 of the movement trajectory arc 4 of the starting point 3 of the driver 1 and the stopper 5 is obtained, and the movement trajectory arc 4 is obtained. Is the distance from the starting point 3 of the driver 1 to the intersection 6 in FIG. (B) The moving distance db when the end point of the element on the driver side moves and interferes with the element on the stopper side (other than the start point and end point). For example, as shown in FIG. 19B, when the driver-1 moves along the reference element 2, the intersection 6 between the movement trajectory arc 4 of the end point 3 of the driver 1 and the stopper 5 is obtained, and the movement trajectory arc is obtained. The distance from the end point 3 of the driver 1 to the intersection 6 at 4 is db. (C) The movement distance dc when a point (other than the start point and end point) on the element on the driver side moves and interferes with the start point of the element on the stopper side. For example, as shown in FIG. 19C, when the driver side is a line segment, the movement locus arc 5 of the starting point 4 of the element 3 and the starting point 7 of the stopper 6 when the driver 1 moves along the reference element 2 As described above, the intersection 9 with the straight line 8 parallel to the element 3 of the driver 1 is determined, and the distance from the starting point 4 of the driver 1 to the intersection 9 in the movement trajectory arc 5 is defined as dc. (D) The movement distance dd when a point (other than the start point and end point) on the element on the driver side moves and interferes with the end point of the element on the stopper side. For example, as shown in FIG. 20A, when the driver side is a line segment, the movement locus arc 5 of the start point 4 of the element 3 and the end point 7 of the stopper 6 when the driver 1 moves along the reference element 2 As described above, the intersection 9 with the straight line 8 parallel to the element 3 of the driver 1 is determined, and the distance from the starting point 4 of the driver 1 to the intersection 9 in the movement trajectory arc 5 is defined as dd. (E) Moving distance de when a point (other than the start point and end point) on the element on the driver side moves and interferes with a point (other than the start point and end point) on the element on the stopper side. For example,
As shown in FIG. 20B, when the driver side is a line segment and the stopper side is an arc, the element 2 of the driver 1
The intersection 6 of the straight line 4 contacting the stopper 3 and the reference element 5 and the intersection 7 of the element 2 and the reference element 5 are determined.
The distance to is de. For all combinations of the interference target elements on both the driver side and the stopper side, the interference distances in all cases (a) to (e) are calculated. However, some of (a) to (e) cannot determine the interference distance. The minimum distance among all the obtained interference distances is defined as the amount of movement of the interference translation along the element.

In the interference calculation in the operation simulation method, if the driver and the stopper interfere with each other before the calculation, the driver is moved to a position where it does not interfere with the stopper, and then the interference occurs. Perform calculations. The details will be described below.

FIG. 14 illustrates the interference translation step 11 in detail, and illustrates the escape processing in the interference translation operation.

The interference translation operation definition step 1 instructs the interference translation operation. When the interference translation operation is instructed, in the interference determination step 2 it is determined whether or not the driver and the stopper interfere with each other, and the determination is made based on the position information. Driver
If the driver and the stopper interfere with each other, the driver is relocated to a position where the driver does not interfere with the stopper in step 3 to relocate the driver to a position where the driver does not interfere. Calculate the amount of movement when translating until contact is made. In step 5, the driver is activated and redisplayed based on the amount of movement calculated in step 4 of calculating the amount of interference translational operation, and the result is stored.

In the interference translation step 11, if the driver and the stopper interfere with each other before the calculation,
After moving by the amount of correction movement (ddis) in the direction opposite to the translation direction and repeatedly moving (releasing) the driver to a position where it does not interfere with the stopper within the range of the total amount of correction movement (ddmax), the above-described interference translation is performed. Is calculated.

If the proper arrangement cannot be made within the total correction movement amount range, the interval of the correction movement amount is corrected, and the correction movement is repeated again.

When the number of corrections of the correction movement amount exceeds the designated number (mmov) or when the interval between the correction movement amounts becomes equal to or less than the minimum correction amount (ddmin), the correction is impossible and the operation is not performed.

Ddis, ddmax, ddmin, mm
ov can be preset in the storage device 20 using the input device 19, and does not need to be set each time the operation is performed. Ddis, ddmax, ddmin, mmo
If v is not specifically set, a standard value determined by the system is set.

FIG. 15 explains the interference rotation step 13 in detail, and shows a relief process in the interference rotation operation. This will be described below.

An interference rotation operation defining step 1 instructs an interference rotation operation. If the interference rotation operation is instructed, an interference determination step 2 determines whether or not the driver and the stopper interfere with each other. If there is interference, the driver is relocated to a position where it does not interfere with the stopper by means 3 for repositioning the driver to a position where it does not interfere. Is calculated, and the result is stored. Next, in the operation result display / registration step 5, the driver is rotated and displayed again based on the rotation angle calculated in the interference rotation operation amount calculation step 4.

In the interference rotation step 13, if the driver and the stopper interfere with each other before the calculation,
After rotating by a correction rotation angle (dthe) in a direction opposite to the rotation direction and repeatedly rotating the driver within a range of the total correction rotation angle (dtmax) to a position where the driver does not interfere with the stopper, the above-described calculation of the interference rotation is performed. I do.

If the proper arrangement cannot be performed with the total correction rotation angle, the interval between the correction rotation angles is corrected, and the correction rotation is repeated again.

The number of corrections of the correction movement amount is the number of times (mrot)
Exceeds the minimum correction angle (d)
tmin) or less, it is determined that the correction is impossible, and no operation is performed.

Dthe, dtmax, dtmin, mr
ot can be preset in the storage device 20 using the input device 19 and does not need to be set every time the operation is performed. Also, dthe, dtmax, dtmin, mro
If t is not set, a standard value determined by the system is set.

By performing the processing described above, it is possible to simulate the operation of a mechanism combining a cam, a link, and the like.

The operation simulation in a two-dimensional CAD figure has been described so far.
The operation simulation can be performed for the D-shaped figure by the configuration of the present embodiment.

The operation simulation for a three-dimensional CAD figure is different from the operation simulation for a two-dimensional CAD figure in that coordinates and vectors are three-dimensional and the rotation center is designated by a rotation axis. The types of elements that can be specified include surface and solid.

Next, the mechanism arrangement state processing device will be described. By assigning an identifier to the arrangement state of a part at an arbitrary time, the mechanism arrangement state processing device can define, register, and return the arrangement state of the mechanism (hereinafter, status) at that time.

The status information includes a part identifier and a part identifier.
When the menu STAT is designated in FIG. 7A, the menu is switched to a menu for handling the status, and a list of the set status is displayed on the display device 18. Is displayed. At this time, the status is defined by designating the menu STORE and inputting the status identifier. Menu L
It is possible to return to the defined status by specifying the OAD and specifying the status identifier.

FIG. 13 shows an outline of the mechanism arrangement state processing method.

That is, in FIG. 13, reference numeral 1 denotes a status processing method selection step, in which either the registration processing or the return processing is performed by the input device 1 such as a mouse or a keyboard.
Use 9 to specify.

In the status processing method determination step 2,
In the central processing unit 17, processing to be executed next is sorted according to the processing method designated in step 1. If registration processing is specified, status registration processing is executed. If a return process is specified, a status return process is executed.

In the status identifier input step 3, an identifier of the status to be registered is designated by using the input device 19 such as a mouse or a keyboard.

In the status registration step 4, the current status information is registered in the storage device 20. The status information includes a part identifier and part arrangement information. Therefore, information of each element constituting the part is not registered in the storage device 20. This allows
This has the effect of reducing the amount of information to be stored.

In the return status selection step 5, while the identifier input in step 3 is displayed on the display device 18, the identifier of the status to be returned is designated using a mouse or a keyboard / mouse of the input device.

In step 6 for reading the return status,
The status information to be returned is read from the storage device 20. At this time, since the amount of information to be read is reduced in step 4, there is an effect that the time required for the reading process is increased.

In the status display step 7, the information read in step 6 is displayed on the display device 18. Also in this processing, as in step 6, since the amount of information to be read is reduced in step 4, the time required for the display processing can be shortened.

[0060]

As described above, in the operation simulation apparatus of the present invention, the operation target shape designating means for designating the operation target shape from among the figures displayed on the display means, and the rotation center of the operation target shape are set. A rotation center instructing unit for instructing, a rotation direction instructing unit for instructing a rotation direction of the operation target shape, an interference target shape instructing unit for instructing an interference target shape from among figures displayed on the display unit, Interference determining means for determining whether the operation target shape and the interference target shape are interfering with each other, and when it is determined that the operation target shape and the interference target shape are interfering with each other, the operation target shape is determined. An operation target shape rearrangement unit that rearranges the operation target shape at a position that does not interfere with the rotational movement; the designated operation target shape or the rearranged operation target shape; And, based on the rotation direction and the interference target shape, having an interference rotation operation calculation means for calculating the interference rotation operation, even if the operation target shape and the interference target shape already intersect, accurately. There is an effect that the interference rotation operation amount can be calculated.

Also, in the operation simulation method of the present invention, an operation target shape instruction step of designating an operation target shape from among the figures displayed on the display means, and a rotation center instruction of designating the rotation center of the operation target shape. And a rotation direction instruction step of instructing a rotation direction of the operation target shape,
An interference target shape instruction step of indicating an interference target shape from among the graphics displayed on the display means, and an interference determination step of determining whether the operation target shape and the interference target shape interfere with each other, When it is determined that the operation target shape and the interference target shape interfere with each other by the determination unit, an operation target shape rearrangement step of rearranging the operation target shape to a position that does not interfere with the rotational movement by the rearrangement unit, The designated operation target shape or the rearranged operation target shape, the rotation center, and the rotation direction,
An interference rotation operation calculating step of calculating the interference rotation operation by the calculation means based on the interference target shape, so that even if the operation target shape and the interference target shape already intersect, the interference rotation operation amount can be accurately calculated. There is an effect that calculation can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic flow chart of an operation simulation.

FIG. 2 is an information system configuration block diagram.

FIG. 3 is an explanatory diagram of calculation of interference translation operation.

FIG. 4 is an explanatory diagram of calculation of interference translation operation.

FIG. 5 is an explanatory diagram of calculation of interference rotation operation.

FIG. 6 is an explanatory diagram of calculation of interference rotation operation.

FIG. 7 is a diagram showing a display example of a rotation operation result.

FIG. 8 is a diagram showing a display example of a rotation operation result.

FIG. 9 is a diagram showing a display example of a rotation operation result.

FIG. 10 is a diagram showing a display example of an interference rotation operation result.

FIG. 11 is a diagram showing a display example of an interference rotation operation result.

FIG. 12 is a diagram showing a display example of an interference rotation operation result.

FIG. 13 is a status flow diagram.

FIG. 14 is a relief flowchart in the interference translation operation.

FIG. 15 is a relief flowchart in the interference rotation operation.

FIG. 16 is an interference translation flow chart.

FIG. 17 is an interference rotation flowchart.

FIG. 18 is a translation flow diagram along an interference element.

FIG. 19 is an explanatory diagram of a translation operation calculation along an interference element.

FIG. 20 is an explanatory diagram of a translation operation calculation along an interference element.

[Explanation of symbols]

1 Interference rotation operation definition step 2 Interference determination step 3 Rearrangement at a position where no interference occurs 4 Interference rotation operation amount calculation step 5 Based on the result calculated by the interference rotation operation amount calculation means, the driver is operated to display and register. Steps to be performed 17 Central processing unit 18 Display device 19 Input device 20 Storage device 21 Information reading device

Continuation of the front page (56) References JP-A-62-114063 (JP, A) JP-A-2-181192 (JP, A) JP-A-2-7172 (JP, A) JP-A-3-129476 (JP) , A) JP-A-4-257075 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 17/50 612

Claims (4)

(57) [Claims] (1) A graphic displayed on a display means is selected from
Actuating object shape instructing means for instructing an actuating object shape, and a rotation center indicating hand for instructing a rotating center of the actuating object shape
A step and a rotation direction indicator for indicating a rotation direction of the operation target shape
And an interference target shape from among the figures displayed on the display means.
A collision target shape instructing means for instructing Jo, and said actuation target shape as the collision target shape and determines collision determination means whether the interfering, by the interference determination means and the actuating object shape and the interference object shape <br/> When it is determined that there is interference, the operation target shape rearranging means for rearranging the operation target shape to a position where the operation target shape does not interfere with the rotational movement, and the specified operation target shape or the rearranged operation
A target shape, the rotation center, the rotation direction,
An operation simulation device, comprising: an interference rotation operation calculating means for calculating an interference rotation operation based on the interference target shape . 2. A method according to claim 2 , wherein said figure is displayed on a display means.
An operation target shape instructing step of instructing an operation target shape, and a rotation center indicating step of instructing a rotation center of the operation target shape
And a rotation direction indicator for indicating a rotation direction of the shape to be actuated.
Degree and the interference determination determines a collision target shape instruction step of instructing the interference object shape from the graphic being displayed on the display unit, depending on whether the determination means and the actuating object shape and the collision target shape is interfering process and, if the collision target shape and the working object shape by the determination means determines that the interference, repositioning the work <br/> moving target shape by rearrangement means in a position where it does not interfere with rotational movement An operation target shape rearrangement step, and the specified operation target shape or the rearranged operation
A target shape, the rotation center, the rotation direction,
Based on the Wataru target shape, working simulation method characterized by having a interference rotation operation calculating step of <br/> calculates an interference rotary actuated by calculation hand stage. 3. The rearrangement of the operation target shape by the operation target shape rearrangement means is performed by performing rotation by a predetermined moving amount in a rotation direction opposite to the rotation direction. The operation simulation device according to claim 1, wherein 4. The rearrangement of the shape to be actuated by the rearrangement means is performed by rotating a predetermined moving amount in a rotation direction opposite to the rotation direction. Item 3. An operation simulation method according to Item 2.