JPH05120395A - Device and method for operation simulation - Google Patents

Abstract

PURPOSE:To accurately calculate an interference rotating operation quantity by rearranging an operation object shape by rotary movement at a position where the operation object shape and an interference object shape do not interfere with each other if the both are in an interference state. CONSTITUTION:In an interference rotating operation definition step 1, interference rotating operation is indicated and in an interference decision step 2, it is decided whether a driver and a stopper interfere with each other; if the driver and stopper interfere with each other, a means for rearrangement to a noninterference position rearranges the driver at the position where it does not interferes with the stopper and in an interference rotating operation quantity calculation step 4, the angle of rotation when the driver rotates until it contacts the stopper is calculated and stored. In a display and registration step 5 for the operation result, the driver is rotated based on the angle of rotation calculated in the calculation step 4 and redisplayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation simulation device and an operation simulation device and method using an information processing system.

[0002]

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

[0003]

In the calculation of the interfering rotary operation amount, when the operating object shape and the interfering object shape have already intersected, it is recognized that they are already interfering, and the interfering rotational operation amount is accurately calculated. I can't.

[0004]

In the operation simulation apparatus of the present invention, the interference determining means for determining whether or not the defined operation target shape and the interference target shape interfere with each other, and the operation target shape and the interference target shape interfere with each other. The above-mentioned problem is realized by having an operation target shape rearrangement means for rearranging the operation target shape by rotational movement at a position where it does not interfere with each other when there is an interference, and an interference rotation operation amount calculation means for calculating an interference rotation operation amount.

In the present invention, an interference determination step of determining whether or not the defined operation target shape and the interference target shape interfere with each other,
When the operation target shape and the interference target shape interfere with each other, the operation target shape rearrangement step of rearranging the operation target shape by rotational movement to a position where it does not interfere, and the interference rotation operation amount calculation step of calculating the interference rotation operation amount. By having it, the said subject is implement | achieved.

[0006]

In the operation simulation apparatus of the present invention, the interference determination means determines whether the defined operation target shape and the interference target shape interfere with each other, and the operation target shape rearrangement causes the operation target shape and the interference target shape to interfere with each other. The object shape to be actuated is arranged by rotation movement at a position where it does not interfere with each other, and the interference rotation operation amount calculation means calculates the interference rotation operation amount.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings.

FIG. 2 shows an operation simulation of an embodiment of the present invention.
FIG. 1 is a block diagram showing the configuration of an information processing system to which an application method is applied. This information processing system is composed of a central processing unit 17 that executes processing of an operation simulation, an element, or a set of elements (hereinafter set) composed of one or more elements, or one or more elements. A set of elements corresponding to parts (hereinafter referred to as a part) is displayed as an operation target shape (driver), input information (moving direction, angle, moving distance) information is displayed, processing results are displayed, and the progress of processing is displayed. Alternatively, a display device 18 for displaying a menu for selecting an operation method as shown in FIG. 7, a keyboard and a mouse, etc. are provided, and designated information necessary for operation, input of information, selection of menu are provided. An input device 19 for inputting instructions or other instructions, a program such as an operation procedure described later, and CAD
Data corresponding to the graphic element (starting point
The coordinates of the end point, the coordinates of the start point / end point / center and the rotation direction in the case of a two-dimensional arc, and the geometric coordinates and element of the two-dimensional circle that are sufficient to determine the coordinates and radius of the center. A set and their arrangement information), calculation results of specified information and operation amount, data (operation macro) information combining operation required for operation and specified information, flags for status information, etc. The apparatus 20 and an information fetching device 21 for reading a program such as an operating procedure from an external storage device and storing the program in the storage device 20 described above constitute a main part thereof.

In this embodiment, a program is read from an external storage medium such as a magnetic tape or a floppy disk into the storage device 20 such as a semiconductor RAM or a magnetic disk through an information capturing device 21, and a CAD such as a shape to be operated is read. The graphic element is displayed on the display device 18, and the data corresponding to the displayed CAD graphic element (start point / end point coordinates in the case of a two-dimensional line segment, start point / end point / center in the case of a two-dimensional arc) is displayed. Coordinate and rotation direction, in case of a two-dimensional circle,
Geometrical information sufficient for determining the geometrical elements such as the coordinates and radius of the center and the set of elements and their arrangement information)
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 displayed again on the display device 18, and the arrangement information of the operation target shape of the storage device 20 is changed and stored. The information specified in the device 20 and the calculation result such as the operation amount are saved. Data (operation macro) which is a combination of operations and designation information necessary for the above-described operation can be stored in the storage device 20. The central processing unit 17 refers to this operation macro to continuously perform the operation of the operation target shapes in the order designated based on the flow of FIG. 1, thereby simulating the movement of the mechanism or 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 structure of the operation simulation system, and the operation will be described based on the above-mentioned structure. That is, in FIG. 1, reference numeral 2 indicates an operation method selection step, and in the state where a graphic such as a CAD object to be operated is displayed on the display device 18 (step 1 of initial placement), for example, a selection item of a menu is displayed. Display some operating methods and display the mouse or key of the input device 19.
Information on selection / instruction is given from the board, and the operation method is selected. The operation method is selected from one of translation, rotation, translation along a CAD graphic element (hereinafter referred to as element), interference translation, interference rotation, and interference translation along the element, as shown in FIG.
The display screen menu (ROT, MOV, P) shown in FIG.
AR, IROT, IMOV, IPAR) input device 19
Specify using the mouse or the keyboard. Where: translation translates the CAD graphic; rotation rotates the CAD graphic; movement along the element translates the CAD graphic along the element; interference translation translates the CAD graphic; , Parallel translation until it hits another CAD figure, interfering rotation rotates until it hits another CAD figure, interfering translation along an element causes another CAD figure to hit another C figure
It means parallel translation along the element until it hits the AD figure.

In the operation method determination step 3, the central processing unit 17 distributes the processing to be executed next according to the operation method specified in the operation method selection step 2. That is, when the translational movement (MOV) is designated, the process of defining the translational movement is executed next, and the rotation movement (R
If OT) is specified, the process for defining the rotation operation is executed next, and the translational operation along the element (P
AR) is specified, a process of defining an operation of translation along an element is executed next, and if an operation of interference translation (IMOV) is specified, a process of defining an operation of interference translation is specified. Then, the interferometric rotation is activated (IRO
If T) is specified, then the process of defining the actuation of interfering rotation is performed, and if actuation of interfering translation along the element (IPAR) is specified, actuating interfering translation along the element. Next, the process of defining

In step 4 of the definition of the translational operation, an element, or a set of elements composed of one or more elements (hereinafter set), or a set of elements composed of one or more elements and corresponding to a part ( The following parts) as the operation target shape (driver),
Designation is performed using the input device 19, a movement vector is designated by a movement direction angle, a movement distance, and the like, and the designation information is stored in a predetermined area of the storage device 20. By changing the display brightness of the elements forming the driver in the display device 18 when the driver is designated,
It is possible to confirm whether the driver has been specified correctly. In translational operation step 5, calculation for translating the driver is performed in the central processing unit 17 with reference to the driver defined (designated) in the above step and the definition information such as the movement vector.

In step 6 of the definition of rotation actuation, FIG.
On the display screen as shown in (b), FIG. 8 (a)-(b) and FIG. 9 (a)-(b), the element or set or part is designated as the driver using the input device 19. , The rotation center and the rotation angle are designated, and the designation information is stored in a predetermined area of the storage device 20. When the driver is designated, it is possible to confirm whether or not the driver can be correctly designated by changing the display brightness of the elements forming the driver in the display device 18.

The rotation operation calculation step 7 is based on the information defined in the above step, the driver, the rotation center,
With reference to the definition information such as the rotation angle, calculation for rotating the driver is performed in the central processing unit 17. In step 8 of the definition of the translational movement along the element, the element or set or part is designated as a driver, and the element to be moved by the driver (reference element), the movement start reference position on the reference element, and the movement direction. , The moving distance and the like are designated using the input device 19, and the designation information is stored in a predetermined area of the storage device 20. When the driver is designated, it is possible to confirm whether or not the driver can be correctly designated by changing the display brightness of the elements forming the driver in the display device 18. In step 9 of the translational operation along the element, based on the information defined in the above step, the central processing unit 17 is referred to by referring to the definition information such as the driver, the reference element, the movement start reference position, the movement direction, and the movement distance. In the calculation, the driver is translated from the movement start reference position on the reference element by the movement distance.

In step 10 of the definition of the operation of the interference translation, the element or set or part as the driver, the element or set or part as the shape to be interfered with (stopper), and the movement direction are input devices 19.
Is used to specify the interference calculation target element as necessary, and the specification information is stored in a predetermined area of the storage device 20. When the interference calculation target element is not designated, as standard values, each n1 element including the element selected by the input device 19 such as a mouse when the driver or the stopper is designated and connected before and after the element is set as the interference target element. .. As the interference target element, all the elements belonging to the designated part, the designated n2 element and the like can be designated.
To specify the element for interference calculation,
Alternatively, one or both of stoppers can be designated. When the driver is specified, the display device 1
It is possible to confirm whether or not the driver can be correctly specified by changing the display brightness of the elements constituting the driver in 8. Similarly, the stopper changes the display brightness of the elements forming the stopper at a specified time.

The interference translation step 11 refers to the driver and stopper designated by the information specified in the above step and the information stored in the storage device 20, the moving direction, and the element for interference calculation as necessary. Thus, in the central processing unit 17, the interference calculation for obtaining the movement amount until the driver interferes with the stopper is performed.

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.
It is a flow chart explaining in detail.

Interference translation operation instruction step 1 uses the mouse or the keyboard of the input device 19 to instruct the operation of interference translation. In the driver instruction step 2, an element, a set, or a part is designated as a driver by using the input device 19 such as a mouse. In the step 3 of instructing the driver's movement direction, an angle of the driver's movement direction with respect to a reference axis such as a vector or X-axis is designated using an input device 19 such as a keyboard. In the stopper instruction step 4, an element, a set, or a part is designated as a stopper by using a mouse key board of an input device. The specified information described above is stored in a predetermined area of the storage device 20. Interference translation calculation step 5
Refers to the designated driver and stopper stored in the storage device, the moving direction, and the interference calculation target element as necessary, so that the driver interferes with the stopper in the central processing unit 17. Interference calculation is performed to obtain the amount of movement up to. The means 6 for actuating 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 re-displayed on the display device 18, and the information of the layout change is stored in the storage device 2 such as a memory or a magnetic disk.
It is reflected in the arrangement information existing in 0 and stored.

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

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

Next, FIG. 17 is a flow chart for explaining 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 shift from the operation method selection step 2 of FIG. The processing will be described in detail.

In the interference rotation operation instruction step 1, the 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 of an input device or a mouse. The designated information is stored in a predetermined area of the storage device 20. In step 3 of instructing the rotation center of the driver, the coordinates of the rotation center of the driver are specified by using the keyboard of the input device or the like. In the rotation direction instructing step 4, the rotation direction of the driver is designated by using the input device 19 such as a mouse. In the rotation direction automatic setting step 5, an input device 19 such as a keyboard is used to set a flag for automatically setting the rotation direction. In the stopper instruction step 6, an element, a set or a part is designated as a stopper by using the input device 19 such as a mouse. The designated information is stored in a predetermined area of the storage device 20. When this definition ends, calculation processing is performed. The interference rotation calculation step 7 refers 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, thereby referring to the central processing unit 17 In step 1, interference calculation is performed to obtain the rotation angle until the driver interferes with the stopper. Step 8 of operating and displaying the driver based on the result calculated by the interference rotation calculation 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 of the layout change is reflected and stored in the layout information existing in the storage device 20 such as a memory or a magnetic disk.

A driver instruction step 2, a driver rotation center instruction step 3 and a 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 the definition of the actuation of the interfering translation along the element, the element or set or part as the driver, the element or set or part as the stopper, the reference element, the movement on the reference element. A start reference position, a moving direction, etc. are designated using the input device 19. The designated information is stored in a predetermined area of the storage device 20. When the interference calculation target element is not specified, as standard values, each n1 element 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 element is set as the interference target element. It is stored in the storage device 20. As the interference target elements, all the elements belonging to the designated part, the designated n2
It can be specified in the form of an element. When designating the interference calculation target element, one or both of the driver and / or the stopper can be designated. Further, when the driver is designated, the display device 18
It is possible to confirm whether or not the driver can be correctly specified by changing the display brightness of the elements constituting the driver in the above. Similarly, the stopper changes the display brightness of the elements forming the stopper at a specified time.

In the step 15 of calculating the translation of interference along the element, definition information such as a designated driver defined in the storage device, a reference element, a movement start reference position and a movement direction, a stopper, and an element to be subjected to interference calculation is stored. By referring to this, in the central processing unit 17, the interference calculation for obtaining the movement amount until the driver interferes with the stopper is performed.

Next, FIG. 18 shows the step 2 of selecting the operation method of FIG.
And a step 15 for calculating an interfering translational movement along the element and a step 16 for registering the display of the operation result will be described in detail according to the flow chart.

Interference translation operation instruction along the element In step 1, an input device 19 such as a mouse is used to instruct the operation of interference translation. In the driver instruction step 2, an element, a set, or a part is designated as a driver by using the input device 19 such as a mouse. In the reference element designation step 3, the element is designated using the input device 19 such as a mouse. In the movement start reference position designation step 4 on the reference element, the movement start reference position is designated by using the input device 19 such as a mouse. In the moving direction instructing step 5, the moving direction of the driver is designated by using the input device 19 such as a mouse. In the stopper instruction step 6, an element, a set or a part is designated as a stopper by using the input device 19 such as a mouse. The designated information is stored in a predetermined area of the storage device 20. The information defined next is calculated in the next step. Interference translation calculation along element Step 7
Is the designated driver and stopper, the reference element, the movement start position on the reference element, the movement direction,
By referring to the interference calculation target element as necessary, the central processing unit 17 performs an interference calculation for obtaining the amount of movement of the driver along the reference element until the driver interferes with the stopper. The step 8 of 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 layout change is reflected and stored in the layout information existing in the storage device 20 such as a memory or a magnetic disk. The driver-instruction step 2, the reference element instruction step 3, the movement start reference position instruction step 4 on the reference element, the driver's movement direction instruction step 5 and the stopper-instruction step 6 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 steps. The driver is re-displayed on the display device 18, and the information of the layout change is reflected on the layout information existing in the storage device 20 such as a memory or a magnetic disk.
Remembered. The state immediately before the operation is the storage device 20.
The driver can be returned to the pre-operational arrangement by saving and issuing a return instruction from the input device 19. By using this function, even if the driver is activated with a wrong definition, it can be restored with a simple operation.

Next, the interference calculation in the operation simulation system of the present embodiment configured as described above will be described with reference to FIG.
(A) and (b) of FIG. 4, (a) to (c) of FIG. 4 and (a) to (c) of FIG. 5, (a) to (b) of FIG. 6 and (a) to (b) of FIG. 7. , (A) to (b) of FIG. 8 and (a) to (b) of FIG. 9 (a) to (b) of FIG. 10, (a) to (b) of FIG. Further description will be given with reference to (b).

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

Next, the 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 shown in (a) below.
It becomes the minimum angle of the angles of (e). (A) The starting point of the driver-side element rotates,
Angle da at the time of interference on the stopper-side element (other than the start point and end point). For example, as shown in FIG. 5A, the intersection 6 of the circle 4 and the stopper 5 of the locus drawn by the starting point 2 of the driver-1 around the rotation center 3 of the driver-1 is obtained,
The angle from the starting point 2 of the driver-1 to the intersection point 6 around the designated rotation direction is da. When there are a plurality of intersections, the 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 when interfering with the element on the stopper side (other than the start point and end point). For example, as shown in FIG. 5B, the intersection 6 of the circle 4 and the stopper 5 of the trajectory drawn by the end point 2 of the driver-1 around the rotation center 3 of the driver-1 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 central angle around the rotation direction from the end point 2 is defined as an intersection point 6. (C) An angle dc when a point (other than the start point and the end point) on the driver-side element rotates and interferes with the stopper-side element (other than the start point and the end point). 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 circular arc 1 is the sum of the radius r1 of the circular arc of the stopper-1 and the radius r2 of the circular arc of the driver-3 r1 + r2
Of the circle 4 of the driver 3 and the circle 6 of the locus drawn by the center 5 of the arc about the rotation center of the driver 3, and the angle from the center 5 of the arc of the driver 3 to the intersection 7 around the specified rotation direction. Be dc. When there are a plurality of intersections, the point having the smallest central angle around the rotation direction from the center 5 is defined as the intersection 7. (D) Angle dd when a point (other than the start point and the 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 1 and a circle 5 passing through the start point 4 of the stopper 3 with the rotation center 2 of the driver 1 as the center is obtained, and the intersection 6 is designated. Stopper around the rotation direction-3
Let dd be the angle to the starting point 4. When there are a plurality of intersections, the point having the smallest central angle from the start point 4 in the opposite direction to the rotation direction is set as the intersection point 6. (E) An angle de when a point (other than the start point and the 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. 6 (b), an intersection 6 between the driver 1 and the circle 5 passing through the end point 4 of the stopper 3 with the rotation center 2 of the driver 1 as the center is obtained, and the intersection 6 is designated. The angle up to the end point 4 of the stopper is set de around the rotation direction. If there are multiple intersections,
The point from the end point 4 having the smallest central angle in the opposite direction to the rotation direction is defined as the intersection point 6. Regarding all combinations of the interference target elements on both the driver side and the stopper side (a) to (e)
Calculate the interference angle in all cases of. However, (a)
In some of (e), the interference angle cannot be obtained. The minimum angle among all the calculated interference angles is set as the rotation angle of the interference rotation operation.

Next, the interference calculation method in the interference translation step 15 along the element will be described. When the reference element is a line segment, the distance until the driver interferes with the stopper is obtained by the above-described interference translation calculation method.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 Determines that they are interfering with each other. If the reference element is an arc, compare the length of the arc with the minimum distance of the following distances (a) to (e), and if the distance is longer than the length of the arc, do not interfere. If it is shorter than the length, it is determined that there is interference. For each reference element, repeat the calculation until the driver interferes with the stopper. (A) A 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 end point). For example, as shown in (a) of FIG. 19, when the driver 1 moves along the reference element 2, the intersection 6 of the movement locus 4 of the start point 3 of the driver 1 and the stopper 5 is obtained, and the movement locus arc 4 is obtained. The distance from the starting point 3 of the driver 1 to the intersection point 6 is defined as da. (B) A 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 / end point). For example, as shown in (b) of FIG. 19, when the driver-1 moves along the reference element 2, the intersection 6 of the movement locus arc 4 of the end point 3 of the driver 1 and the stopper 5 is obtained, and the movement locus arc is obtained. The distance from the end point 3 of the driver 1 to the intersection point 6 in 4 is db. (C) Moving distance dc when a point on the element on the driver side (other than the start point / end point) moves and interferes with the start point of the element on the stopper side. For example, as shown in (c) of FIG. 19, 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 are defined. Then, the intersection 9 with the straight line 8 parallel to the element 3 of the driver 1 is obtained, and the distance from the starting point 4 of the driver 1 to the intersection 9 on the movement locus arc 5 is dc. (D) Moving distance dd when a point (other than the start point / end point) on the driver side element moves and interferes with the end point of the stopper side element. For example, as shown in (a) of FIG. 20, when the driver side is a line segment, the movement locus arc 5 of the starting 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 are defined. Then, the intersection 9 with the straight line 8 parallel to the element 3 of the driver 1 is obtained, and the distance from the starting point 4 of the driver 1 to the intersection 9 on the movement locus arc 5 is dd. (E) Moving distance de when a point on the element on the driver side (other than the start point / end point) moves and interferes with a point on the element on the stopper side (other than the start point / end point). For example,
When the driver side is a line segment and the stopper side is an arc, as shown in FIG.
The intersection point 6 of the straight line 4 and the reference element 5 parallel to the stopper 3 and the intersection point 7 of the element 2 and the reference element 5 are obtained.
The distance up to is de. The interference distances in all cases (a) to (e) are calculated for all combinations of the interference target elements on both the driver side and the stopper side. However, in some of (a) to (e), the interference distance cannot be obtained. The minimum distance among all the calculated interference distances is taken as the movement amount of the interference translation along the element.

Further, in the interference calculation in the operation simulation system, if the driver and the stopper interfere with each other before the calculation, the driver is placed so that it does not interfere with the stopper, and then the interference occurs. Try to calculate. The details will be described below.

FIG. 14 illustrates the interfering translation step 11 in detail, showing the escape process in the interfering translational operation.

Interference translation operation definition step 1 instructs interference translation operation. When interference translation operation is instructed, interference determination step 2 determines whether or not the driver and stopper interfere with each other, and determines by position information. Driver
And the stopper interfere with each other, the driver is relocated to a position where it does not interfere with the stopper in step 3 in order to relocate it to a position where it does not interfere with the stopper. Calculate the amount of movement when translating until it contacts. In step 5, the driver is operated and re-displayed based on the movement amount calculated in the interference translational operation amount calculation step 4, and the result is stored.

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

When an appropriate arrangement cannot be made within the total correction movement amount range, the correction movement amount interval is corrected and the correction movement is repeated again.

If the number of corrections of the correction movement amount exceeds the specified number (mmov) or the interval of the correction movement amount becomes equal to or smaller than the minimum correction amount (ddmin), the correction is impossible and the operation is not performed.

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

FIG. 15 illustrates the interference rotation step 13 in detail, and shows the escape processing in the interference rotation operation. This will be explained below.

In the interference rotation operation definition step 1, the interference rotation operation is instructed. When the interference rotation operation is instructed, it is determined in the interference determination step 2 whether the driver and the stopper interfere with each other. When there is interference, the driver 3 is relocated to a position where it does not interfere with the stopper by means of repositioning it to a position where it does not interfere, and the interference rotation operation amount calculation step 4 is when the driver rotates until it contacts the stopper. Calculate the rotation angle of and store the result. 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,
Calculation of the interference rotation described above after rotating in the direction opposite to the rotation direction by the correction rotation angle (dthe) and repeatedly rotating the driver within the range of the total correction rotation angle (dtmax) to a position where it does not interfere with the stopper. I do.

When the total correction rotation angle cannot be properly arranged, the correction rotation angle interval is corrected, and the correction rotation is repeated again.

The number of corrections of the correction movement amount is the number of times (mrot)
Or the interval of the correction rotation angle exceeds the minimum correction angle (d
If it becomes less than tmin), it is determined that the correction is impossible and the operation is not 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, the standard value set by the system is set.

By carrying out the above-mentioned processing, it is possible to perform the operation simulation of the mechanism in which the cam, the link and the like are combined.

Up to now, the three-dimensional CA has been described for the operation simulation in the two-dimensional CAD figure.
With respect to the D figure, the operation simulation can be performed with the configuration of this embodiment.

The operation simulation for a three-dimensional CAD figure is different from the operation simulation for a two-dimensional CAD figure in that the coordinates / vectors are three-dimensional, and the rotation center is designated as the rotation axis. The types of elements that can be designated include surfaces and solids.

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

The status information includes a part identifier and a part identifier.
When the menu STAT is specified in the shape data shown in FIG. 7A, the status is switched to a menu for handling the status, and the set status list 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 designating the OAD and the status identifier.

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

That is, the reference numeral 1 in FIG. 13 is a status processing method selection step, and either the registration processing or the restoration processing is performed by the input device 1 such as a mouse or a keyboard.
Specify using 9.

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

In the status identifier input step 3, the 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, the information of each element forming the part is not registered in the storage device 20. This allows
This has the effect of reducing the amount of information to be saved.

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

In step 6 of reading the return status,
Information on the status to be restored is read from the storage device 20. At this time, since the amount of information to be read is reduced in step 4, the time required for the reading process can be shortened.

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

[0060]

As described above, according to the present invention, the interference determining means for determining whether or not the defined operation target shape and the interference target shape interfere with each other, and the interference when the operation target shape and the interference target shape interfere with each other. By providing the operation target shape rearranging means for rearranging the operation target shape by the rotational movement and the interfering rotation operation amount calculating means for calculating the interference rotation operation amount, the operation target shape and the interference target shape are already intersected with each other. Even if it is, there is an effect that the interfering rotation operation amount can be accurately calculated.

As described above, according to the present invention, the interference determination step of determining whether the defined operation target shape and the interference target shape interfere with each other, and the position where the operation target shape does not interfere with the interference target shape when the operation target shape interferes with the interference target shape. In the case where the operation target shape and the interference target shape have already intersected by having the operation target shape rearrangement step for rearranging the operation target shape by rotational movement and the interference rotation operation amount calculation step for calculating the interference rotation operation amount. However, there is an effect that the interference rotation operation amount can be accurately calculated.

[Brief description of drawings]

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

FIG. 2 is a block diagram of an information system configuration.

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

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

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

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

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 an example of interference rotation operation result display.

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

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

FIG. 13 is a status flow diagram.

FIG. 14 is a relief flow chart in the interference translation operation.

FIG. 15 is a relief flow chart in the interference rotation operation.

FIG. 16 is an interference translation flow chart.

FIG. 17 is an interference rotation flow chart.

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

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

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

[Explanation of symbols]

1 Interference rotation operation definition step 2 Interference determination step 3 Relocation to a position where interference does not occur 4 Interference rotation operation amount calculation step 5 Based on the result calculated by the interference rotation operation amount calculation means, display and register the driver Step 17 Central processing unit 18 Display device 19 Input device 20 Storage device 21 Information reading device

Claims (2)

[Claims] 1. An interference determination means for determining whether a defined operation target shape and an interference target shape interfere with each other, and the operation target shape is rotationally moved to a position where it does not interfere when the operation target shape and the interference target shape interfere with each other. An operation simulation apparatus comprising: an operation target shape rearrangement means for rearranging by means of an operation target; and an interference rotation operation amount calculation means for calculating an interference rotation operation amount. 2. An interference determination step of determining whether or not the defined operation target shape and the interference target shape interfere with each other, and the operation target shape is rotationally moved to a position where it does not interfere when the operation target shape and the interference target shape interfere with each other. An operation simulation method, comprising: an operation target shape rearrangement step of rearranging by means of an interference rotation operation amount calculation step of calculating an interference rotation operation amount.