JPH1091671A - Method and device for supporting mechanism design - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently verify mechanism operation in mechanism design and its design change. SOLUTION: Connection points with other parts are acquired by using the shape feature data and shape generation history data of holes and grooves in addition to parts shape data obtained from CAD 1 on a parts design step, mechanism analysis parts data are automatically prepared from the design step, and at the time of changing the design also, the mechanism analysis parts data are prepared simultaneously with the progress of design while editing the connection points by using the shape generation history data. These operation can be attained by respective processing parts 10 to 16. On a parts assembling step, connection elements among mechanism analysis parts are automatically prepared by using parts assembling order data, assembling connection point data and assembling history data obtained from the CAD 1, and at the time of changing the design also, mechanism analysis assembling parts data are prepared simultaneously with the progress of design while editing constitutional mechanism analysis parts, connecting positions and connection methods by using assembling history data. These operation can be attained by respective processing parts 17 to 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism design support method and apparatus for supporting mechanism design by mechanism operation simulation.

[0002]

2. Description of the Related Art In a conventional mechanism design work, a designer prepares an assembly drawing from a drawing of a mechanical part, and examines an operation verification work while judging a relationship between the mechanical parts on the assembly drawing. I have. Adjustment of mechanism operation and timing is tested after the prototype is completed. Such designers often make erroneous judgments on the drawings, which requires enormous effort and time. In addition, waiting for the completion of the prototype will increase the development period.

Therefore, a mechanism design support device 38 as shown in FIG. 19 is used. This mechanism design support device 38
Realizes support of mechanism design by inputting CAD data from the part / assembly CAD data reading device 37 and performing various processes based on the CAD data.

[0004] The CAD data to be input to the mechanism design support device 38 is firstly generated by a component creation CAD device 34 and a component assembly CAD device 35 in a CAD system 33, respectively.
After the data 36 is generated, the data 36 is generated by reading them by the part / assembly CAD data reading device 37.

Hereinafter, the flow of various processes in the conventional mechanism design support device 38 will be described with reference to the flowchart of FIG. In the figure, first, CAD data indicating the coordinates of the component shape and the component assembly position read by the component / assembly CAD data reading device 37 is input to the CAD shape conversion unit 40 in the mechanism design support device 38. Then, data conversion is performed in the CAD shape conversion unit 40, and shape data for creating a mechanism analysis model is created. The created shape data is stored in the data file 39 (step S01).

Here, when a mechanism analysis execution instruction is given to the mechanism design support device 38, first, a mechanism analysis component is declared in the mechanism analysis component creation unit 41 (step S0).
2). Next, in the mechanism analysis component connection point creation unit 42,
The shape data corresponding to the mechanism analysis component is called from the data file 39, and a connection point is created at a hole, a groove, or a center where another mechanism analysis component may be connected (step S).
03). This operation is repeated until declaration of all parts and creation of connection points are completed (step S04).

[0007] When the designer considers the way and place of joining two or more parts while looking at the display screen, and selects the joining point of the mechanism analysis parts using a mouse or the like, the operator responds accordingly.
The connection elements such as rotation and translation are set in the assembly element connection section 43 (step S05). The above-described operation is performed for all the connection points between components (step S0).
6).

[0008] In the mechanism analysis execution unit 44, a drive function indicating the manner of movement of the mechanism is set (step S07), the mechanism analysis is executed, and the result is stored in the data file 39 (step S08). Mechanism analysis result processing unit 45
In, the mechanism analysis result is called from the data file 39, image data of the machine operation is created (step S09), and the image is displayed on the mechanism analysis result display device.

The designer confirms the mechanism operation considered in the mechanism design while looking at the image displayed on the mechanism analysis result display device 46. Further, the operator considers verifying the mechanism design by changing the conditions such as the component position, the movable range, and the coupling between the components (step S10). At this time, the data of the position of the coupling point relating to the mechanism analysis component and the data of the coupling device between the mechanism analysis components are exchanged, these are stored in the data file 39, and the mechanism analysis is executed again.

[0010]

However, the conventional mechanism design support apparatus cannot be applied until all the designs such as the shape of the parts and the assembly of the parts have been completed. Sometimes I forgot how to do it. Further, when changing conditions such as movement of a connection point or a method of connecting parts, it is necessary to search for and describe those description portions from an enormous data file. As described above, the use of the mechanism design support device can reduce the labor and work time of the designer, but there is a problem that the work efficiency is extremely low.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mechanism design support method and apparatus capable of efficiently performing mechanism design and verification of mechanism operation when the design is changed. I do.

[0012]

According to the present invention, not only the part shape data from CAD at the part design stage but also attribute data such as shape characteristic data such as holes and grooves and shape generation history data are used. Acquires connection points with other parts, automatically creates mechanical analysis part data from the design stage, edits connection points using shape generation history data for design changes, and simultaneously It is possible to create mechanism analysis part data.

In the part assembling stage, the creation of connection elements between mechanical analysis parts is automated using attribute data such as part assembly order data from CAD and assembly connection point data and assembly history data. It is possible to create mechanism analysis assembly data at the same time as the design progresses while editing the mechanism analysis parts, connection points, and connection methods to be configured using the history data.

Thus, it is possible to efficiently design a mechanism based on practical considerations and with sufficient consideration.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a functional configuration of a system including a mechanism design support apparatus according to one embodiment of the present invention. The mechanism design support device 8 shown in the figure supports the mechanism design by using a CAD system and mechanism analysis. That is,
The mechanism design support device 8 receives the component creation CAD data from the component creation CAD data reading device 4 and the component assembly CAD data from the component assembly CAD data reading device, and performs various processes based on the CAD data. By doing so, support for mechanism design is realized.

The CAD system 1 includes a component creation CAD device 2 for generating component creation CAD data 3 including a component shape, a shape characteristic, and a shape generation history, and a component assembly order, an assembly connection point, and a component including an assembly history. A component assembling CAD device 5 for generating assembling CAD data 6 is provided. The component creation CAD data reading device 4 reads the component creation CAD data 3 generated by the component creation CAD device 2 and supplies this to the mechanism design support device 8. On the other hand, the component assembling CAD data reading device 7 reads the component assembling CAD data 6 generated by the component assembling CAD device 5 and supplies it to the mechanism design support device 8.

Next, of the various processing units in the mechanism design support device 8, processing units that contribute to component creation will be described.

The mechanism analysis component creation unit 10 is a component creation CA.
The part creation CAD data including the part shape, the shape characteristic, and the shape generation history is input from the D data reading device 4 to create mechanism analysis part data. The mechanical component information obtaining unit 11 obtains coordinates of a connection point that can be connected to another component from the component creation CAD data, and adds the obtained coordinates to the mechanical analysis component data.

The mechanism analysis component division unit 12 divides the mechanism analysis component when the component is divided in the design process. The mechanism analysis component information division processing unit 13 determines the component to which the above-mentioned connection point belongs from the shape generation history and the shape feature of the component creation CAD data changed according to the component division, and Classify.

The mechanism analysis component synthesizing unit 14 synthesizes the above-mentioned mechanical components when the components are synthesized in the design process. The mechanism analysis component information synthesis processing unit 15 determines the synthesis or disappearance of the connection point from the shape generation history and the shape feature of the component creation CAD data changed according to the synthesis of the component, and synthesizes the connection point.

The mechanism analysis part information history processing unit 16 is configured to, when a shape, a hole, a groove or the like is changed in a part design change, change the shape history and the shape characteristic included in the part creation CAD data of the part. The combination point is synthesized, erased, moved, or the like according to, and the connection point is edited.

Next, among the various processing units in the mechanism design support device 8, processing units that contribute to the assembly of components will be described.

The mechanism analysis assembling / creating section 17 includes a component assembling CA.
The part assembling CAD data including the part assembling order, the assembling connection point, and the assembling history are acquired from the D data reading unit, and the part configuration, the assembling order and the associating element data are created. The assembling / coupling element generation unit 18 generates a coupling element between components together with the component assembling CAD data to generate mechanical analysis assembly data of the entire machine.

The mechanism analysis assembly division section 19 divides the mechanism analysis assembly data when the assembly is divided during the design process. The mechanism analysis / assembly information division processing unit 20 determines the assembly to which the component configuration and the coupling element data belong from the assembly history of the component assembly CAD data changed according to the division of the assembly, and performs the divided mechanism analysis / assembly. Classify into products.

The mechanism analysis assembly synthesizing unit 21 synthesizes the mechanism analysis assembly data when the assembly is synthesized in the design process. The mechanism analysis / assembly information synthesis processing unit 22 determines the synthesis or disappearance of the above-mentioned component configuration and connection element from the assembly history of the component assembly CAD data changed according to the synthesis of the assembly, and edits the component configuration and connection element. I do.

The mechanism analysis assembly information history processing unit 23 responds to the assembly history included in the component assembly CAD data of the assembly when the component configuration, the connection point, and the connection element are changed in the design change of the assembly. Edit the composition, disappearance, change, and change of the connection point of the mechanism analysis parts and connection elements.

The mechanism analysis execution unit 24 sets a drive function indicating how the mechanism moves, executes the mechanism analysis, and stores the result in the data file 9. Mechanism analysis result processing unit 25
Calls the mechanism analysis result from the data file 9,
Image data of the machine operation is created, and the image is displayed on the mechanism analysis result display device.

FIG. 2 is a diagram showing a mechanical system of a copier which is a target in a verification example by the mechanical design support apparatus. Of the components that make up the copier 27, the target in this embodiment is the image reading unit, and a description of the other components will be omitted. The image reading unit includes the image reading device 3
1. An image reading unit belt drive motor 29, an image reading unit belt 30, and an image reading unit pulley 32.

Next, with reference to the flow charts of FIGS. 3 and 4, the procedure of the process of creating and assembling the mechanism analysis component will be described.

In the description of the procedure for creating the mechanism analysis parts (FIG. 3), FIGS. 5 to 9 will be sequentially referred to in order to explain the specific processing contents. FIGS. 5 to 9 are conceptual diagrams showing part shapes, shape generation histories, shape characteristics, and mechanism operation analysis part model data at each stage of creation of the image reading device in the copying machine.

In the description of the procedure for assembling the mechanism analysis parts (FIG. 4), FIGS. 10 to 18 will be sequentially referred to for explaining the specific processing contents. These FIGS. 10 to 1
8 is a conceptual diagram showing data of an assembling configuration, an assembling history, and a mechanism operation analysis assembling model at each assembling stage of the image reading apparatus in the copy machine.

First, part creation CAD data 3 including a part shape, a shape characteristic, and a shape generation history are generated in the part creation CAD apparatus 2 in the CAD system 1 and these CADs are generated.
The data 3 is read into the component creation CAD data reading device 4. When the component creation CAD data 3 read by the component creation CAD data reading device 4 is input to the mechanism analysis component creation unit 10, it is stored in the data file 9 (step S101 in FIG. 3).

The mechanical components constituting the image reading section in the copying machine 27 include an image reading device 3
1. The image reading unit belt driving motor 29, the image reading unit belt 30, and the image reading unit pulley 32 correspond to the following. The design procedure of the image reading unit 31 will be mainly described below.

In the first creation stage shown in FIG. 5, as shown in the component shape data 1a, dimensions are given to the quadrangular shape, and it is stretched in the height direction to create an external shape. At this time, the shape generation history data 1b is the plane creation (A
1) and a drawer (A2), and the shape feature data 1c is one of three-dimensional shapes (A11). In addition,
These shape generation history data and shape characteristic data correspond to attribute data of a part.

Based on the CAD data, the mechanism analysis component creation unit 10 in the mechanism design support device 8 determines that the component is a new component (step S102) and declares creation as a mechanism analysis component (step S103). In the mechanism analysis component information acquiring unit 11, the center point of the mechanism analysis component is automatically generated as a connection point (step S104). The connection point data at this time has not yet been described in the bracket in the mechanism operation analysis component model data 1d in FIG.

In the second creation stage shown in FIG. 6, a circle is created on the upper surface of the three-dimensional shape as shown in the part shape data 2a, and the circle is drawn out in the height direction to create a cylindrical shape.
A logical operation is performed on the three-dimensional shape and a hole is created in the three-dimensional shape. In the shape generation history data 2b at this time, a circle is drawn on the upper surface (B1), a circle is drawn (B2), and a logical operation (B3) between the cylinder and the three-dimensional shape is added. Hole A (B11) is also added to shape feature data 2c.

Based on the CAD data, the mechanism analysis component creation unit 10 in the mechanism design support device 8 determines that the part shape has been changed (step S113), and the mechanism analysis component information history processing unit 16 determines the corresponding mechanism analysis component. Calling (step S114), the generation of a hole is confirmed from the shape generation history and the shape feature (step S115), and connection point data including the center coordinates and the radius of the hole is obtained (step S116). The acquired connection point data is reflected on the bracket in the mechanism operation analysis part model data 2d of FIG.

In the third preparation stage shown in FIG. 7, as shown in the part shape data 3a, a two-dimensional
A logical operation that combines the two into one three-dimensional shape.
In this case, the processing (C1 to C1)
A logical operation (C6) of a three-dimensional shape is added together with 5). In the shape feature data 3c, the three-dimensional shape (C1
Two sets of 2) and a hole (C13) are newly added, and a three-dimensional shape (C11) is added. At this time, the names of the two holes are given as holes A and B for identification.

Based on the CAD data, the mechanism analysis component creation unit 10 in the mechanism design support device 8 determines that the component shapes are to be synthesized (step S109), and the mechanism analysis component synthesis unit 14
Then, a three-dimensional mechanism analysis component for performing a logical operation of a combination is called (step S110), and the mechanism analysis component information synthesis processing unit 15 recognizes and determines that each connection point is different (step S111), and The data is added (step S112). This added new connection point data is reflected on the bracket in the mechanism operation analysis component model data 3d of FIG.

In the fourth preparation stage shown in FIG. 8, as shown in the part shape data 4a, a newly formed rectangular parallelepiped is subjected to a logical operation of subtraction from a three-dimensional shape having two holes, thereby forming a groove into which the belt enters. create. At this time, in the shape generation history data 4b, the contents of the shape generation history data 3b are used to create a rectangular parallelepiped (D1), and a logical operation (D
2) is added. In the shape feature data 4c, a groove shape (D11) is newly added below the three-dimensional shape (C11).

Based on the CAD data, the mechanism analysis component creation unit 10 in the mechanism design support device 8 determines that the component shape has been changed (step S113), and the mechanism analysis component information history processing unit 16 determines the corresponding mechanism analysis component. Calling (step S114), the generation of the groove shape is confirmed from the shape generation history and the shape characteristics (step S115), and connection point data including the center line and radius of the groove is obtained (step S116).
The acquired new connection point data is reflected on the bracket in the mechanism operation analysis part model data 4d of FIG.

In the fifth preparation stage shown in FIG. 9, as shown in the part shape data 5a, a design change for deleting a three-dimensional hole B having two holes and a groove shape is shown.
At this time, the state returns to the state in which the hole B is generated using the shape generation history data, and three shapes are generated: draw a circle on the upper surface (B1), draw out the circle (B2), and perform logical operation with the cylinder (B3). The history data is deleted, and the further shape generation procedure is automatically repeated again to restore the current three-dimensional shape having one hole (B11) and groove shape (D11). In the shape feature data 5c at this time, the hole B is deleted.

Based on the CAD data, the mechanism analysis component creation unit 10 in the mechanism design support device 8 determines that the part shape has been changed (step S113), and the mechanism analysis component information history processing unit 16 determines the corresponding mechanism analysis component. (Step S114), the hole shape feature and the disappearance of the hole B are confirmed from the shape generation history and the shape feature (step S115), and the connection point information of the hole B is deleted from the mechanism analysis component information (step S116). The deletion of the connection point information is reflected on the bracket in the mechanism operation analysis part model data 4d of FIG.

With such a design procedure, the image reading device 3
At the same time as the shape of No. 1 is determined, an image reading device as a mechanism analysis component is also completed.

Next, the designer starts the assembly design of the image reading section of the copying machine 27. Also in this case, the mechanical components of the image reading device include an image reading device 31, an image reading portion belt driving motor 29, and an image reading portion belt 3.
0, which is the image reading unit pulley 32.

In the first assembling stage, assembling processing such as the assembly data 11a shown in FIG. 10 is performed. In this case, the assembly history data 11b shown in FIG. 11 is designed according to the following procedure. That is, the arrangement of the motor shaft 29 (F
1) Arrangement of the pulley shaft 32 (F2), the belt 30 is hung on the motor shaft 29 and the pulley shaft 32 (F3), arrangement of the image reading device 31 (F4), and fixing the image reading device 31 to the belt 30 (F3). F5), Image reading device 31
Of the belt transport system (F6).

First, from the CAD system 1, the component assembly CAD data reading device 7 in the mechanism design support device 8
Component assembly C including component assembly order, assembly connection point, and assembly history
The AD data is input to the mechanism analysis component creation unit 10 and stored in the data file 9 (Step S201 in FIG. 4).

The mechanism analysis / assembly / creating section 17 in the mechanism design support device 8 first determines that a new part is to be assembled (step S202), and the motor shaft 29, the pulley shaft 32, and the belt 3
0, the mechanism analysis component information corresponding to the image information reading device 31 is called (step S203). Next, the assembling / coupling element generation unit 18 sets a rotation coupling element for the rotation of the motor shaft 29 and the rotation of the pulley shaft 32 from the information on the assembling procedure and the assembling / coupling point.
Is set, a translational connection element is set for the translation operation of the image reading device 31, and a belt transmission connection element is set between the image reading device 31 and the belt 30 (step S204).

The mechanism analysis executing section 24 gives a drive function for the motor shaft 29 (step S219), and executes a mechanism analysis (step S220). The mechanism analysis result is stored in the data file 9, the mechanism analysis result processing unit 25 creates animation data from the mechanism analysis result, and the mechanism analysis result display device 26 displays the mechanism analysis result as an animation (step S221).

The results of the mechanism analysis are shown in the data 11c of the mechanism operation analysis assembly model of FIG. 12 in which the connection point data of the motor shaft (F11), the data of the setting of the rotary joint and the belt transmission (F12), Connection point data (F13), translation joint setting and belt transmission data (F14), connection point data (F1
5) is reflected.

The operator confirms the mechanism operation considered in the mechanism design while watching the animation on the mechanism analysis result display device 26. At this time, if the operator considers changing the conditions and verifying the mechanism design when there is a malfunction in the mechanism operation (step S222), the CAD system 1
Return to and change the assembly part configuration and part shape.

That is, in the second assembling step, when the coordinates of the motor shaft 29 are changed as in the assembly data 12a of FIG. 13, the CAD system 1 changes the coordinates of the motor shaft.

As shown in FIG. 14, in the assembly history data 12b of the part assembly CAD data obtained at this time, the assembling process is returned to the arrangement of the pulley shaft, and the arrangement of the motor shaft (F
The movement (G1) of the motor shaft is incorporated between 1) and the pulley shaft arrangement (F2), and the assembling process after the pulley shaft arrangement is executed again.

The assembly history data 12b of the component assembly CAD data is again input to the mechanism analysis component creation unit 10 and stored in the data file 9 (step S201). The mechanism analysis assembly history information processing unit 23 determines that the assembly has been changed (step S214), calls a mechanism analysis component corresponding to the motor shaft 29 (step S215), and determines the movement of the motor shaft from the assembly history (step S216). ), The position of the coupling element of the assembly is changed (step S217).

The contents of the movement of the motor shaft are reflected in the mechanism operation analysis assembly model data 12c of FIG. That is, the connection point data of the motor shaft (F11)
And the data of the rotation joint setting and belt transmission (F1
Between (2) and (2), data (G11) of motor shaft movement is inserted.

Next, as a third assembling stage, a belt transport system including a pulley shaft and a motor shaft is newly added to the assembly of the image information reading unit as in the assembly data 13a in FIG. When the motor shaft is common, the CAD system 1 adds and combines an image reading unit and a new belt conveyance system assembly.

As shown in FIG. 17, in the assembly history data 13b of the part assembly CAD data obtained at this time, the arrangement of the motor shaft (H1), the arrangement of the pulley shaft (H2), the fixing to the belt (H3), and the image reading An assembly (H4) of the belt transport system of the apparatus is added.

The assembly history of the part assembly CAD data is input again to the mechanism analysis part creating unit 10 and the data file 9
(Step S201). Next, the mechanism analysis / assembly / synthesis unit 21 determines that the assembly is synthesis (Step S20)
9) The mechanism analysis / assembly information synthesizing unit 22 calls up the corresponding image reading unit and the mechanism analysis component included in the belt transport system assembly to be added (step S210), and sets a new pulley shaft and motor shaft from the assembly history. It is determined that the addition of the belt and the motor shaft are the same (step S21).
1), a process of deleting the motor shaft from the belt system to be added and changing the belt coupling element to the motor shaft of the image reading unit is performed and written into the composite assembly (step S212).

After the design change, the drive function for the motor shaft 29 is given by the mechanism analysis execution unit 24 (step S21).
9) A mechanism analysis is performed (step S220). The mechanism analysis result is stored in the data file 9, the mechanism analysis result processing unit 25 creates animation data from the mechanism analysis result, and the mechanism analysis result display device 26 displays the mechanism analysis result as an animation (step S221).

The data 13c of the mechanism operation analysis assembly model in FIG. 18 reflects the data of the setting of the rotary joint and the belt transmission (H11) and the connection point data of the additional pulley shaft (H12).

The operator can realize a mechanical operation without copy shift, dirt and paper jam in the case of the copying machine 27 while repeating design change and mechanism analysis by repeating this operation.
In this way, the operator can confirm and verify the operation of the mechanism at the same time as the design change without having to consider the technical knowledge and the change of the mechanism analysis data in the huge data file. It is possible to efficiently design a mechanism based on practical consideration and with sufficient consideration.

[0063]

As described in detail above, the present invention utilizes not only part shape data from CAD in the part design stage, but also attribute data such as shape characteristic data such as holes and grooves and shape generation history data. By acquiring connection points with other parts, mechanical analysis part data is automatically created from the design stage, and the design points are edited by using the shape generation history data to edit the design points even for design changes. It is possible to create mechanism analysis part data simultaneously with progress. In the part assembling stage, the creation of connection elements between mechanical analysis parts is automated using attribute data such as part assembly order data from CAD and assembly connection point data and assembly history data. Mechanical analysis parts to be configured using
It is possible to create mechanism analysis assembly data at the same time as the design progresses while editing the connection location and connection method. As a result, it is possible to efficiently design a mechanism that is practical and under sufficient consideration.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a functional configuration of a system including a mechanism design support device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a mechanical system of a copier which is a target in a verification example by the mechanical design support apparatus.

FIG. 3 is a flowchart illustrating a procedure of a process of creating a mechanism analysis component in the mechanism design support apparatus.

FIG. 4 is a flowchart showing a procedure of assembling processing of a mechanism analysis component in the mechanism design support apparatus.

FIG. 5 is a first image reading apparatus in the copying machine.
FIG. 3 is a conceptual diagram showing a part shape, a shape generation history, a shape feature, and a mechanism operation analysis part model data at a stage of creating a part.

FIG. 6 shows a second example of the image reading apparatus in the copying machine.
FIG. 3 is a conceptual diagram showing a part shape, a shape generation history, a shape feature, and a mechanism operation analysis part model data at a stage of creating a part.

FIG. 7 shows a third example of the image reading apparatus in the copying machine.
FIG. 3 is a conceptual diagram showing a part shape, a shape generation history, a shape feature, and a mechanism operation analysis part model data at a stage of creating a part.

FIG. 8 is a fourth view of the image reading device in the copying machine.
FIG. 3 is a conceptual diagram showing a part shape, a shape generation history, a shape feature, and a mechanism operation analysis part model data at a stage of creating a part.

FIG. 9 is a fifth view of the image reading apparatus in the copying machine.
FIG. 3 is a conceptual diagram showing a part shape, a shape generation history, a shape feature, and a mechanism operation analysis part model data at a stage of creating a part.

FIG. 10 is a conceptual diagram illustrating an assembling configuration of the image reading device in the first assembling stage in the copying machine.

FIG. 11 is a conceptual diagram showing an assembling history of the image reading apparatus in the copying machine at a first assembling stage.

FIG. 12 is a conceptual diagram showing data of a mechanism operation analysis assembly model in a first assembly stage of the image reading device in the copy machine.

FIG. 13 is a conceptual diagram showing an assembling configuration in a second assembling stage of the image reading apparatus in the copying machine.

FIG. 14 is a conceptual diagram showing an assembly history in a second assembly stage of the image reading device in the copying machine.

FIG. 15 is a conceptual diagram showing data of a mechanism operation analysis assembly model in a second assembly stage of the image reading device in the copy machine.

FIG. 16 is a conceptual diagram showing an assembling configuration of the image reading apparatus in the copying machine in a third assembling stage.

FIG. 17 is a conceptual diagram showing an assembling history of the image reading device in the copy machine in a third assembling stage.

FIG. 18 is a conceptual diagram showing data of a mechanism operation analysis assembly model in a third assembly stage of the image reading device in the copy machine.

FIG. 19 is a functional block diagram showing a configuration of a system including a mechanism design support device according to the related art.

FIG. 20 is a flowchart showing a processing procedure in a mechanism design support device according to the related art.

[Explanation of symbols]

 1: CAD system, 2: Component creation CAD device, 3: Component creation CAD data, 4: Component creation CAD data reading device, 5: Component assembly CAD device, 6: Component assembly CAD data, 7: Component assembly CAD data reading device 8, a mechanism design support device, 9: a data file, 10: a mechanism analysis component creation unit, 11: a mechanism analysis component information acquisition unit, 12: a mechanism analysis component division unit, 13: a mechanism analysis component information division processing unit, 14 ... Mechanism analysis component synthesis unit, 15 Mechanism analysis component information synthesis processing unit, 16 Mechanism analysis component information history processing unit, 17 Mechanism analysis assembly unit, 18 Assembly coupling element generation unit, 19 Mechanism analysis assembly division unit, 20 ... Mechanism analysis assembly information division processing unit, 21 ... Mechanism analysis assembly information synthesis processing unit, 22 ... Mechanism analysis assembly information synthesis processing unit, 23 ... Mechanism analysis assembly information history processing unit, 24 ... machine Analysis execution unit, 25: Mechanism analysis result processing unit, 26: Mechanism analysis result display device, 27: Copy machine, 28: Document, 29: Image reading unit belt drive motor, 30: Conveying belt, 31: Image reading device, 32 ... Pulley shaft of image reading unit, 33 ... CAD system, 34 ... Part creation CAD device, 35 ... Part assembly CAD device, 36 ... Part creation / component assembly CAD data, 37 ... Part / assembly CAD data reading device, 38 ... Mechanical design Support device, 39: data file, 40: CAD shape conversion unit, 41: mechanism analysis component creation unit, 42: mechanism analysis component connection point creation unit, 43: assembly element generation unit, 44: mechanism analysis execution unit, 45: mechanism Analysis result processing unit, 46 ... Mechanism analysis result display device.

Claims (13)

[Claims] 1. A mechanism design support method for supporting a mechanism design by performing a mechanism analysis based on CAD data from a CAD system, the method including component shape data obtained from the CAD system and attribute data of the component. Acquiring component creation CAD data; generating and storing mechanism analysis component data based on the acquired component creation CAD data; and storing assembly data obtained from the CAD system.
Acquiring component assembly CAD data including attribute data of component assembly; generating and storing mechanical analysis assembly data based on the acquired component assembly CAD data; and changing the design of the component. A step of reflecting the contents of the design change in the mechanism analysis part data by using the attribute data in the part creation CAD data; and
Reflecting the contents of the design change to the mechanism analysis assembly data by using attribute data in the D data. 2. A mechanism design support method for supporting a mechanism design by performing a mechanism analysis based on CAD data from a CAD system, comprising: a part feature data obtained from the CAD system; Acquiring component creation CAD data including data; generating and storing mechanical analysis component data based on the acquired component creation CAD data; and storing assembly data obtained from the CAD system.
Obtaining part assembly CAD data including part assembly order data, assembly connection point data, and assembly history data; generating and storing mechanism analysis assembly data based on the obtained part assembly CAD data; When there is a design change of a part, the contents of the design change are reflected in the mechanism analysis part data by using at least one of the shape feature data and the shape generation history data in the part creation CAD data. And, when there is a change in the design of the component assembly, the component assembly CA
Using at least one of the part assembly order data, the assembly connection point data, and the assembly history data in the D data to reflect the contents of the design change in the mechanism analysis assembly data. Mechanism design support method to be. 3. The mechanism design according to claim 2, further comprising the step of acquiring coordinates of connection points to be connected between the components from the component creation CAD data and reflecting the coordinates on the analysis component data. How to help. 4. When a part is divided in the design process, the contents of the division are converted by using the shape characteristic data and the shape generation history data in the part creation CAD data which are changed in accordance with the division. 3. The mechanism design support method according to claim 2, further comprising the step of reflecting the data on mechanism analysis component data. 5. When a part is synthesized in a design process, the synthesized contents are converted by using the shape characteristic data and the shape generation history data in the part creation CAD data which are changed in accordance with the synthesis. 3. The mechanism design support method according to claim 2, further comprising the step of reflecting the data on mechanism analysis component data. 6. When there is a design change in the shape characteristic of a part, the change is reflected in the mechanism analysis part data by using the shape characteristic data and the shape generation history data in the part creation CAD data. 3. The mechanism design support method according to claim 2, further comprising the step of: 7. When the assembly is divided in the design process, the part assembly CAD changed according to the division.
3. The mechanism design support method according to claim 2, further comprising the step of: using the assembly history data in the data to reflect the contents of the division on the mechanism analysis assembly data. 8. The component assembling CAD which is changed in accordance with the synthesis when an assembly is synthesized in a design process.
3. The mechanism design support method according to claim 2, further comprising the step of using the assembly history data in the data to reflect the synthesized content in the mechanism analysis assembly data. 9. When there is a design change in at least one of a component configuration, a connection point and a connection element of an assembly,
3. The mechanism design support method according to claim 2, further comprising the step of: using the assembly history data in the part assembly CAD data to reflect the change in the mechanism analysis assembly data. 10. A mechanism design support method for supporting a mechanism design by a CAD system and a mechanism analysis, comprising: inputting part creation CAD data including a part shape, a shape characteristic, and a shape creation history from a part creation CAD data reading means; A mechanism analysis component creation step for creating component data; a mechanism component information acquisition step for acquiring coordinates of a connection point that can be combined with another component from the component creation CAD data and adding the coordinates to the mechanism analysis component data; A mechanical analysis part dividing step of dividing the mechanical analysis part when the part is divided in a process; and determining a part to which the connection point belongs from a shape generation history and a shape characteristic of the part creation CAD data changed according to the part division. Judgment and mechanism analysis component information division processing step to classify into divided mechanism analysis components, and components are synthesized in the design process A mechanical analysis component synthesizing step of synthesizing the mechanical component in the case where it has been performed, and determining the synthesis or disappearance of the connection point from the shape generation history and the shape feature of the component creation CAD data changed according to the synthesis of the component. A mechanism analysis component information synthesis processing step for synthesizing a connection point, and, when a shape feature such as a hole or a groove is changed in a component design change, a shape history and a shape included in the component creation CAD data of the component A mechanism analysis part information history processing step of editing connection points by judging the combination, disappearance, movement, etc. of connection points according to the features; a part assembly order and assembly connection points from part assembly CAD data;
An assembly history information processing step of acquiring part assembly CAD data including an assembly history and creating a part configuration, a joining order, and joining element data; and creating a joining element between parts together with the part assembling CAD data to create an entire machine. An assembly connection element generating step of generating mechanism analysis assembly data; a mechanism analysis assembly division step of splitting the mechanism analysis assembly data when the assembly is split during the design process; and changing according to the assembly division. A mechanism analysis assembly information division processing step of determining an assembly to which the component configuration and the connection element data belong from the assembly history of the part assembly CAD data thus divided, and classifying the assembly into the divided mechanism analysis assemblies; A mechanism analysis assembly synthesizing step of synthesizing the mechanism analysis assembly data in the case where the components are synthesized in the above step; and a component assembly changed according to the synthesis of the assembly. A mechanism analysis / assembly information synthesizing process step of editing the component configuration and the coupling element by judging the combination or disappearance of the component configuration and the coupling element from the assembly history of the AD data; When the connection element is changed, the mechanism analysis assembly information for synthesizing, erasing, changing, and changing the connection point of the mechanism analysis part and the connection element according to the assembly history included in the component assembly CAD data of the assembly. And a history processing step. 11. A mechanism design support apparatus for supporting mechanism design by performing mechanism analysis based on CAD data from a CAD system, comprising: component shape data obtained from the CAD system and attribute data of the component. Means for acquiring component creation CAD data; means for generating and storing mechanism analysis component data based on the acquired component creation CAD data; and assembly data obtained from the CAD system.
Means for acquiring part assembly CAD data including attribute data of part assembly; means for generating and storing mechanism analysis assembly data based on the acquired part assembly CAD data; Means for reflecting the contents of the design change in the mechanism analysis part data by using the attribute data in the part creation CAD data; and, when there is a design change in the part assembly, the part assembling CA.
Means for reflecting the contents of the design change in the mechanism analysis assembly data by using the attribute data in the D data. 12. A mechanism design support apparatus for assisting mechanism design by performing mechanism analysis based on CAD data from a CAD system, comprising: part feature data obtained from said CAD system; shape feature data; shape generation history. Means for acquiring component creation CAD data including data; means for generating and storing mechanism analysis component data based on the acquired component creation CAD data; and assembly data obtained from the CAD system.
Means for acquiring part assembly CAD data including part assembly order data, assembly connection point data, and assembly history data; means for generating and storing mechanism analysis assembly data based on the acquired part assembly CAD data; Means for reflecting the contents of the design change to the mechanism analysis part data by using at least one of the shape feature data and the shape generation history data in the part creation CAD data when there is a design change of When there is a change in the design of the component assembly, the component assembly CA
Means for reflecting the contents of the design change in the mechanism analysis assembly data by using at least one of the part assembly order data, the assembly connection point data, and the assembly history data in the D data. Characteristic mechanism design support device. 13. A mechanism design support apparatus for supporting a mechanism design by a CAD system and a mechanism analysis, wherein a part creation CAD data including a part shape, a shape characteristic, and a shape creation history is input from a part creation CAD data reading means, and a mechanism analysis is performed. Mechanism analysis component creation means for creating component data; mechanism component information acquisition means for acquiring coordinates of connection points that can be combined with other components from the component creation CAD data and adding the coordinates to the mechanism analysis component data; A mechanism analysis part dividing means for dividing the mechanism analysis part when the part is divided in a process; and a part to which the connection point belongs is determined from a shape generation history and a shape characteristic of the part creation CAD data changed according to the part division. A mechanism analysis component information division processing means for determining and classifying the divided mechanism analysis components; and A mechanism analysis component synthesizing unit for synthesizing a structural component, and determining the synthesis or disappearance of the connection point from the shape generation history and shape characteristics of the component creation CAD data changed according to the synthesis of the component, and synthesizing the connection point. Combines mechanism analysis part information synthesis processing means with the shape history and shape features included in the part creation CAD data when the shape, hole, groove, or other shape feature is changed in the component design change A mechanism analysis part information history processing means for editing connection points by judging combination, disappearance, movement of points, etc., and a part assembly CAD data comprising a part assembly order, an assembly connection point, and an assembly history from a part assembly CAD data reading means. An assembly history information processing means for obtaining and obtaining part configuration, connection order and connection element data; and a connection element between parts together with the part assembly CAD data to create a mechanism of the entire machine. Assembly coupling element generation means for generating analysis assembly data; mechanism analysis assembly division means for dividing the mechanism analysis assembly data when the assembly is divided during the design process; Mechanism analysis assembly information division processing means for determining an assembly to which the component configuration and the coupling element data belong from the assembly history of the component assembly CAD data, and classifying the assembly into divided mechanism analysis assemblies; A mechanism analysis assembly synthesizing means for synthesizing the mechanism analysis assembly data when synthesized, and synthesizing or erasing the component configuration and the coupling element from the assembly history of the component assembly CAD data changed according to the synthesis of the assembly. And a mechanism analysis / assembly information synthesizing means for editing the component configuration and connection elements, and when the component configuration, connection points and connection elements are changed in the design change of the assembly, And a mechanism analysis assembly information history processing means for editing the synthesis, disappearance, change, and change of the connection point of the mechanism analysis parts and connection elements according to the assembly history included in the part assembly CAD data of the assembly. Mechanism design support device.