JP3251409B2 - Three-dimensional model creation apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for creating a three-dimensional model, and more particularly to an apparatus and a method for creating a three-dimensional model for displaying a three-dimensional mechanism model. The present invention is to create a three-dimensional model of a mechanism having a power transmission system by using a workstation-level three-dimensional CAD.

[0001]

2. Description of the Related Art Conventionally, there has been a three-dimensional CAD shown in FIG. The three-dimensional CAD according to the conventional example is, as shown in FIG.
A data input means 94 for inputting and instructing data relating to a mechanism having a power transmission system; and tertiary data based on data input by the data input means 94 or attribute information of each part or assembly information between parts provided in advance. It has three-dimensional model creation means 91 for creating the original mechanism model, and output means 92 for outputting the created three-dimensional model such as display.

[0002]

In a three-dimensional CAD according to a conventional example, a three-dimensional CAD based on attribute information of each part to be created and assembly information between parts given in advance in response to an instruction. A model is created, or a three-dimensional model is created based on data input from the data input unit 94, and output from the output unit 92. However, attributes such as the shape, size or arrangement of an indirect transmission member such as a belt that is compatible with a pulley or the like that is a power transmission system depend on the attribute of the pulley or the like on which the indirect transmission member is provided, and a predetermined indirect An accurate three-dimensional model cannot be created only by the attributes of the transmission member.

[0003] Therefore, for an indirect transmission member such as a belt provided on a pulley as a power transmission system, a three-dimensional CA is used.
When creating a three-dimensional mechanism model using D, the indirect transmission member is provided by the data input means 94 so that the belt used for the power transmission system connects the pulleys on the assembled model. Based on the attributes of the pulleys and the like of the power transmission system, the user inputs data obtained by measuring data on the indirect transmission member according to the individual shape, and causes the three-dimensional model creation means 91 to create a three-dimensional model. There is a need. However, when the user inputs data through the data input unit 94 to create the indirect transmission member model, there is a problem that a great burden may be imposed on the user.

When an existing indirect transmission member such as a belt is used, it is necessary to verify whether the assembled indirect transmission member on the three-dimensional model matches the existing one. In that case, conventionally, when using an existing belt, whether or not the belt created using the pulleys on the assembled model matches the existing belt depends on the dimensions of each part of the created three-dimensional model. It has to be measured and verified, and there is also a problem that a great burden may be imposed on the user.

[0005] Therefore, the present invention is capable of automatically and easily obtaining the attributes of an indirect transmission member suitable for a power transmission system of a three-dimensional model, including a power transmission system of a mechanical section, in accordance with the present invention. It is an object of the present invention to provide a three-dimensional model creation device and method capable of easily creating a three-dimensional model in which an indirect transmission member model is accurately represented.

Further, in the present invention, when a power transmission system such as a pulley is selected on a three-dimensional model to create an indirect transmission member model, the indirect transmission member conforms to a predetermined (already registered) specification. It is an object of the present invention to provide an apparatus and method for creating a three-dimensional model that enables accurate design support by providing a measure for improving a design by verifying whether or not the three-dimensional model conforms.

[0007]

Means for Solving the Problems To solve the above technical problems, the first invention is, as shown in FIG. 1, a power transmission system designating a power transmission system for a three-dimensional mechanism model. Means 14 and an indirect transmission member model creating means for creating an indirect transmission member model by calculating an attribute of an indirect transmission member such as a belt adapted to the designated power transmission system based on the attribute of the designated power transmission system. 13, three-dimensional model creation means 11 for creating a three-dimensional mechanism model by incorporating the indirect transmission member model based on attribute information of each part of the three-dimensional mechanism model and assembly information between parts, The data such as the attribute of the three-dimensional mechanism model created by the three-dimensional model creation means 11 or the attribute of the indirect transmission member obtained by the indirect transmission member model creation means 13 is displayed. In which an output unit 12 for performing.

The second invention, as shown in FIG. 2, uses a power transmission system designating means 14 for designating a power transmission system for a three-dimensional mechanism model, and a belt or the like adapted to the designated power transmission system. An indirect transmission member model creating means 13 for calculating an attribute of the indirect transmission member based on an attribute of the designated power transmission system to create an indirect transmission member model; and, for a three-dimensional mechanism model, attribute information and parts of each part. Based on the assembly information between, incorporating the indirect transmission member model,
Three-dimensional model creation means 1 for creating a three-dimensional mechanism model
A verification unit 15 for verifying whether the attribute of the indirect transmission member calculated as conforming to the specified power transmission system matches the attribute of the planned indirect transmission member,
Display of the three-dimensional mechanism model created by the three-dimensional model creation unit 11, the data on the indirect transmission member obtained by the indirect transmission member model creation unit 13, or the verification result obtained by the verification unit 15 And output means 12 for performing the output.

The third invention, as shown in FIG. 3, relates to a power transmission system specifying means 14 for specifying a power transmission system for a three-dimensional mechanism model, and a belt or the like adapted to the specified power transmission system. An indirect transmission member model creating means 13 for calculating an attribute of the indirect transmission member based on the attribute of the designated power transmission system to create an indirect transmission member model; attribute information of each component of the three-dimensional mechanism model; Based on the assembly information, the three-dimensional model creation means 11 for incorporating the indirect transmission member model to create a three-dimensional mechanism model, and the indirect transmission member calculated as compatible with the specified power transmission system. A verification unit 15 for verifying whether the attribute matches the attribute of the planned indirect transmission member, and an attribute changing unit 1 for changing the attribute of the power transmission system when the attribute is verified not to match. When the three-dimensional model generating means 11
The data such as the three-dimensional mechanism model created by the above, the indirect transmission member model obtained by the indirect transmission member model creation unit 13, the verification result obtained by the verification unit 15, or changed by the attribute change unit 16 And output means 32 for outputting, for example, display of the attribute change information.

According to a fourth aspect of the present invention, as shown in FIG. 4, when a power transmission system of a three-dimensional mechanism model is designated (S1), the power transmission system is assigned to the power transmission system based on the designated attribute of the power transmission system. The attribute of the indirect transmission member model such as a suitable belt is calculated, an indirect transmission member model is created (S2), and the indirect transmission member model is created based on the attribute information of each part of the three-dimensional mechanism model and the assembly information between the parts. A three-dimensional mechanism model is created by incorporating the transmission member model (S3), and output such as display of the created three-dimensional mechanism model is performed, and display of data obtained with respect to the indirect transmission member model is performed. That is, output is performed (S4).

According to a fifth aspect of the present invention, as shown in FIG. 5, when a power transmission system of a three-dimensional mechanism model is designated (S1), based on the attribute of the designated power transmission system, the power transmission system is provided. A suitable indirect transmission member such as a belt is calculated, an indirect transmission member model is created (S2), and the attribute of the indirect transmission member calculated as conforming to the specified power transmission system is:
Verification is performed to determine whether or not the attribute of the planned indirect transmission member matches (S11), and the verification result or output of the calculated data regarding the indirect transmission member is output and the like, and according to the verification result. In other words, the created indirect transmission member model is incorporated into the created three-dimensional model and output such as display is performed (S12).

Here, the "power transmission system" refers to, for example, a system in which two pulleys each composed of an original section and a follower are connected by a belt serving as an indirect transmission member, or two systems composed of an original section and a follower. There are a system in which a chain gear is connected by a chain, which is an indirect transmission member, and a system in which an original section and a follower are connected by a link. `` Indirect transmission member ''
Is a member for transmitting power by connecting the original section and the follower, and corresponds to a belt or a chain wound around a pulley or a chain gear, a link, or the like. The attributes of the indirect transmission member, such as its shape, size, and arrangement, are determined depending on the attributes of the original or follower to which the indirect transmission member is to be connected. Therefore, it is not possible to create an accurate three-dimensional model only with the attributes of the indirect transmission members set in advance. The “attribute” refers to a characteristic or property such as the shape, size or position of a member. Further, the "output means" includes, for example, a display means capable of displaying a screen as shown in the embodiment, and a printer capable of recording and outputting.

[0013]

Next, the operation of the present invention will be described. The first invention and the fourth invention will be described. FIG. 1 or FIG.
As shown in step S1, when the assembled three-dimensional mechanism model displayed on the output means 12 is displayed or when the three-dimensional mechanism model is displayed on the output means 12 and assembled (while assembling), The power transmission system designating means 14 specifies a power transmission system that requires an indirect transmission member.

In step S2, the indirect transmission member model creating means 13 determines the shape, size or arrangement of the indirect transmission member suitable for the specified power transmission system by using the attributes of the specified power transmission system. And an indirect transmission member model is calculated based on the attributes of the and the follower. For example, as a power transmission system according to the embodiment, when two flat pulleys of an original section and a follower are connected to a flat belt, which is an indirect transmission member, as follows. The attribute of the flat belt is calculated based on the attribute, and an indirect transmission member model suitable for the pulley is created.

For example, as shown in FIG. 8, the codes are defined as follows. D: Pitch diameter of large pulley 1 (maximum outer diameter of pulley + thickness of belt) d: Pitch diameter of small pulley 2 (maximum outer diameter of pulley + thickness of belt) C: Distance between pulley shafts L: Length of belt 3 α: Contact angle (degree)

Then, the distance between the axes, the contact angle, and the belt length in the case of a flat belt can be obtained by the following equations. Distance between shafts: The distance between the shafts of the belt pulley is expressed by the following equation (1).
Represented by

[0017]

(Equation 1) Contact angle: The contact angle of the belt at the small pulley 2 is given by the following equation 2.
(Expression 2)

[0018]

(Equation 2) Belt length: The center length of the belt is expressed by the following equation (3).

[0019]

(Equation 3) In step S4, the three-dimensional model creating means 11 incorporates the created indirect transmission member model, displays it on the output means 12, or generates an indirect transmission member model obtained so as to be suitable for a power transmission system. Output such as displaying attributes.

Next, the second invention or the fifth invention will be described. In this case, unlike the first invention or the fourth invention, by providing the verification means 15 or the like, whether the attribute of the created indirect transmission member model matches the attribute of the planned indirect transmission member Verify whether or not. The verification result is output from the output unit 12. Here, the “scheduled indirect transmission member” refers to, for example, specifications such as a standard belt.

Next, the third invention will be described. In this case, unlike the first, second, fourth and fifth inventions, by providing the verification means 15 and the attribute changing means 16, the attribute of the created indirect transmission member model is If it is verified that the attribute does not match the attribute of the member, the attribute of the specified power transmission system is changed to match.

[0022]

EXAMPLE Next, an example of the present invention will be described.
FIG. 6 is a block diagram illustrating a device configuration of the three-dimensional model creation apparatus and method according to the present embodiment.
FIG. 2 is a block diagram mainly showing functions realized by a program recorded in a memory. As shown in FIG. 6, in the present embodiment, as hardware, a CPU and a memory 51 for performing various controls related to the three-dimensional creation device, and an output for displaying and outputting data of the created three-dimensional model and the like. Means 52, a file 53 in which various data are stored, and a tablet 5 for designating a power transmission system of a three-dimensional mechanism model by an operator.
4a and an input unit 54 including a keyboard 54b for inputting data and the like are connected by a bus. In this embodiment, the software is composed of an original three-dimensional CAD system 55 and a newly provided application unit 56 as shown in FIG.

As shown in FIG. 6, the CPU and the memory 51
Includes a three-dimensional CAD basic unit 31 having functions realized by a basic program used when creating a three-dimensional model, and a control for displaying the created three-dimensional model and various information on the display unit 52b. And a conversation control unit 33 for displaying messages, reading selections and key input information from the operator regarding matters to be processed interactively with the operator in the process of activating and operating the application unit 56. Starting and stopping of the entire application unit 56 and the application unit 5
6 and a main control unit 34 for controlling the start and stop of each unit such as the conversation control unit 33 and the data distribution between them, and the length and contact of the belt based on the outer shape and the distance between the shafts of the pulley which is the power transmission system. A calculation unit 35 for calculating an optimum value when the angle and length are inappropriate.

Further, the CPU and the memory 51 include:
A print control unit 36 that controls output to the printer;
A component information recording unit 37 that reads external dimensions and position information of a pulley that is a power transmission system from a database of a three-dimensional CAD system, and records parameters necessary for calculation when a belt that is an indirect transmission member is created later; Regarding the thickness of the belt as an indirect transmission member, a belt thickness information recording unit 38 that records input information input from a keyboard 54b of the input unit 54, and a pulley model of a three-dimensional CAD,
Model creation unit 3 that creates a belt model based on the calculation results
9, an external interface 40 for controlling a functional connection with an application unit 56 for creating an indirect transmission member model and the like, and a designated indirect transmission member model for which a designated power transmission system has been created. A verification unit 41 that verifies whether the attribute of the transmission member matches the attribute of the transmission member;
And an attribute changing unit 42 that changes the attribute of the power transmission system when it is verified that they do not match.

The output means 52 includes a printer 52a for outputting a list of calculation results together with parameters,
A display unit 52b. The file 53 includes a parts information database 43, an assembly information database 44, and a belt of the power transmission system having a pulley width and a crown shape (the shape of the curved surface formed on the outer peripheral surface of the pulley that comes into contact with the belt). It stores a table as a guide for selecting a width, and stores a set of a belt width selection table section 45 displayed as necessary, and a set of applicable calculation formulas for calculation by the calculation section 41. Main control unit 3
And a calculation formula table section 46 for sending the formula indicated by 4 to the calculation section 35. Here, the tablet 54a corresponds to the power transmission system designation unit 14.

The three-dimensional CAD system 55 shown in FIG.
That is, the three-dimensional CAD basic unit 31, the screen display control unit 33, the component information database 42, the assembly information database 43, and the external interface 40 correspond to the three-dimensional model creating unit 11, and have a three-dimensional mechanism. A three-dimensional mechanism model is created by incorporating the indirect transmission member model based on attribute information of each part of the model and assembly information between parts.

Further, of the application section 56, the conversation control section 33, the main control section 34, the calculation section 35, the component information recording section 37, the belt thickness information recording section 38, the model creation section 39, The various calculation formula table section 46 and the belt width selection table section 45 are provided by the indirect transmission member model creation means 5.
The indirect transmission member model is created by calculating the attribute of an indirect transmission member such as a belt that is compatible with the specified power transmission system based on the attribute of the specified power transmission system.

Next, the operation of the apparatus and method for creating a three-dimensional model according to the present embodiment will be described with reference to the pulley as the power transmission system and the belt as the indirect transmission member shown in FIG.
The description will be made mainly with reference to the drawings of FIGS. FIG.
In step SJ1, an instruction is given by the input means 54, and among the three-dimensional models to be created, the model excluding the indirect transmission member of the power transmission system is displayed on the screen of the display 52b of the output means 52. Start the creation by displaying it.

In step SJ2, the pulley A (corresponding to the original section or follower) of the power transmission system as shown in FIG. 8 displayed on the screen of the display section 52b by the tablet 54a of the input section 54 is displayed on the screen. Is selected or designated by making contact at the display position of. Then, the corresponding pulley A is read from the parts information database 43 of the three-dimensional CAD system 55.
The maximum outer shape (a) of the pulley A, which is the component information related to the component, is read out and recorded in the component information recording section 37.

At this time, it is preferable to increase the brightness of the outline of the relevant pulley A on the display screen of the display section 52b,
Make it clear to the user. In step SJ3, similarly,
The tablet 54a selects or designates the pulley B (slave or original) by touching or the like on the screen, and the maximum outer shape of the pulley B, which is the component information on the relevant pulley B from the component information database 43 (b) Is read out, and the center distance C between the pulleys A and B stored in the assembly information database 44 is automatically read out. At this time, it is preferable to increase the brightness of the outline of the relevant pulley B on the display screen of the display unit 52b.

In step SJ4, when the designation is confirmed and the designation is canceled, the selected pulley is deleted from the part information recording section 37 in step SJ7. If the process is to be continued for the specified power transmission system, the process proceeds to step SJ5, where the keyboard 54 of the input unit 54
The thickness (t) of the belt is input from b and recorded in the belt thickness recording section 38. In step SJ6, the calculation unit 35
Is the t recorded in the belt thickness information recording section 38, the pulley A recorded in the component information recording section 37
Is calculated based on the maximum outer shape a of the pulley B, the maximum outer shape b of the pulley B, and the expressions 2 and 3 obtained from the above-described expression 1 recorded in the various formula table 46.
d, the length L of the belt and the contact angle α are determined.

As shown in the flowchart of FIG.
At J8, the determined belt length L is displayed on the display section 52b.
Display on the screen. In step SJ9, the determined belt length is compared with the expected belt specification (length). If the belt specifications are met, the process proceeds to step SJ10, where the belt width read from the belt width selection table section 45 is displayed on the screen of the display section 52b, and a number is designated by the keyboard 54b. Select the width of the belt. When the width of the belt is selected, the process proceeds to step SJ11, and a belt model is created.

FIG. 11 shows the creation of a specific belt model for the flat belt provided on the pulley. As shown in FIG.
0 starts the vector model creation process. In step SJ111, an appropriate common tangent of each circumference and both circles is created using the outlines of the pulleys A and B displayed on the screen of the display unit 52b.

In step SJ112, unnecessary lines are deleted from the cross section of the belt shape. In step SJ113, the outer shape is offset by the thickness t recorded in the belt thickness information recording section 38 (thickness is given to the belt).
In step SJ114, the belt width selection table 4
5 is given a depth shape according to the width (W) of the selected belt. Here, the width of the belt has the following criteria depending on the relationship between the shape and dimensions of the pulley.

[0035]

[Table 1] In step SJ115, the center of the width (P) of the pulley and the center of the width (W) of the created belt are aligned, and the three-dimensional CA is set.
The belt is sent to the D system 55, and the created belt is incorporated into the three-dimensional model displayed on the display unit 52b.

Returning to FIG. 10, when the belt model is created in step SJ11, the process proceeds to step SJ12, where the user selects whether to display or print the created belt specification on the screen by using the data input unit 54b. . When printing is selected in step SJ13, the process proceeds to step SJ16, and the printer 52a of the output unit 52 prints out and prints on recording paper. On the other hand, when the display is selected in step SJ13, the process proceeds to step SJ14, where the display is displayed on the screen of the display unit 52b of the output unit 52.

In step SJ15, it is further determined whether or not printing is to be performed. If printing is to be performed, the process proceeds to step SJ16. If not, it ends. On the other hand, if the length L of the belt determined in step SJ8 in FIG. 10 does not match the expected belt specification, the verification unit 41 determines in step SJ9, that is, creates the belt according to the model. If the length of the belt is inappropriate, the process proceeds to step SJ17, where the attribute change unit 42 performs attribute change processing.

In the attribute change process, as shown in FIG. 12, the attribute change unit 42 starts the attribute change process in response to the attribute change process instruction from the input unit 54 in step SJ170. In step SJ171, when the desired belt length L is input from the keyboard 54b,
In step SJ172, the user selects one of the following on the screen or the like using the tablet 54a. That is, the outer diameter of the pulley of the power transmission system is fixed and the distance between the shafts is changed. The distance between the shafts is fixed and the diameter of the pulley A is changed. The distance between the shafts is fixed, and the diameter of the pulley B is changed. Is one of

If it is determined in step SJ173 that the attribute change unit 4 has been selected, the process proceeds to step SJ174.
2 is a formula 1 to obtain the distance C between the axes by substituting La for L. If the step SJ173 is selected, the process proceeds to the step SJ175, where La is substituted for L in the equation 3, and D is obtained by the following equation 4 (Equation 4).

[0040]

(Equation 4) If is selected in step SJ173, the process proceeds to step SJ176, where La is substituted for L in equation 3, and d is obtained by the following equation 5 (equation 5).

[0041]

(Equation 5) A model is created with the values obtained in step S117.

FIG. 13 shows a specific example in which a three-dimensional model of the belt is created according to this embodiment. In the figure, (a) shows the state of only the pulley before the belt is made, (d) shows the state of the belt alone, and (c) shows the tertiary state of the created belt to be wound around the pulley. (B) shows a three-dimensional model when a belt is incorporated in the pulley.
As described above, the present embodiment has a function of automatically creating the shapes of belts used in the power transmission system of the mechanism unit in accordance with the shape and arrangement of the pulleys, and a case where the existing belt is used. The three-dimensional CAD is provided with means for verifying whether or not the length of the belt attached to the arrangement is appropriate. In addition, the following functions are provided. A function that automatically generates a belt model along the circumference of the pulley simply by selecting the model on the screen for the pulley around which the belt is wound. When the belt is generated, the length and width of the belt are planned. A function to automatically verify whether or not it is appropriate If the standard belt is specified and it does not match the created belt, it has a function to automatically display pulley or pulley position change information .

In other words, in the present embodiment, the three-dimensional CAD
The basic function of reading the model data of each pulley that is the target of the belt and the data on the distance between each pulley using the external interface function of the belt and creating the belt shape interactively with the operator based on this. If the created belt is specified as a standard part in advance, it has a function to verify whether it conforms to the standard belt, thereby simplifying the belt creation operation on 3D CAD and accurately verifying it with the verification function. It is possible to support a simple design. In the above description, the input means is not limited to the tablet or the keyboard, but may be, for example, a mouse or a handwriting input. Further, in the above embodiments, only the pulley as the power transmission system and the belt as the indirect transmission member have been described, but the present invention is not limited to this. For example, a chain gear may be used as the power transmission system, and a chain may be used as the indirect transmission member. Others
A case where an indirect transmission member such as a link is used in the power transmission system may be used.

[0044]

As described above, according to the present invention,
With respect to the three-dimensional mechanism model, an attribute of the indirect transmission member suitable for the power transmission system is automatically calculated, and an indirect transmission member model is created. Therefore, it is possible to easily and quickly obtain a high-quality three-dimensional model in which the indirect transmission member model is accurately represented. Further, according to the present invention, when a power transmission system such as a pulley is selected on a three-dimensional model to create an indirect transmission member model, whether or not the indirect transmission member conforms to a predetermined specification of a standard part or the like is determined. Can be verified. Therefore, by providing a design improvement measure, more accurate design support can be made possible, and a high-quality three-dimensional model can be obtained easily, operably, efficiently, and quickly.

[Brief description of the drawings]

FIG. 1 is a principle block diagram according to a first invention.

FIG. 2 is a principle block diagram according to the second invention.

FIG. 3 is a principle block diagram according to a third invention;

FIG. 4 is a principle flowchart according to a fourth invention.

FIG. 5 is a principle flowchart according to a fifth invention.

FIG. 6 is a block diagram of a device configuration according to an embodiment.

FIG. 7 is a block diagram according to an embodiment;

FIG. 8 is a diagram showing a structure of a power transmission system according to the embodiment.

FIG. 9 is a processing flowchart according to the embodiment (1).

FIG. 10 is a processing flowchart according to the embodiment (2).

FIG. 11 is a flowchart of a belt model creation process according to the embodiment.

FIG. 12 is a flowchart of an attribute change process according to the embodiment.

FIG. 13 is a diagram showing a specific example of a three-dimensional model according to the embodiment.

FIG. 14 is a block diagram according to a conventional example.

[Explanation of symbols]

 11 Three-dimensional model creation means 12 (52b) Output means (display unit) 13 Indirect transmission member model creation means 14 (54a) Power transmission system designation means (tablet) 15 Verification means 16 Attribute change means

Claims (5)

(57) [Claims] 1. A three-dimensional mechanism model, comprising:
A power transmission system having a follower is displayed on a screen,
Communication with a power transmission system designated hand stage for specifying on the screen of the follower, a between said HaraTakashi of specified power transmission system followers
Length of belt- like indirect transmission member that connects and transmits power
Attributes about fine angle, the original of the specified power transmission system
Attributes for clauses and followers and the indirects entered
Calculated based on the thickness of the transmission member, and the indirect transmission member modeling means to create an indirect transmission member model, based on the assembly information between the components of the attribute information and the parts of the three-dimensional mechanism model, the indirect A 3D model creation method for creating a 3D mechanism model by incorporating a transmission member model
And stage, the data attributes concerning more resulting indirect transmission member in a three-dimensional mechanism model or the indirect transmission member modeling hand stage more created on the three-dimensional model creation hand stage,
Three-dimensional modeling apparatus according to an outputting hand stage for performing output such as display. 2. A three-dimensional mechanism model, comprising:
A power transmission system having a node is displayed on a screen, and
Communication with the power transmission system designated hand stage for designating a follower on the screen, between the said HaraTakashi of specified power transmission system followers
Length of belt- like indirect transmission member that connects and transmits power
Attributes about fine angle, the original of the specified power transmission system
Attributes related to the clause and the follower , and the input
Calculated based on the thickness of the contact transmission member, and the indirect transmission member modeling means to create an indirect transmission member model, the three-dimensional mechanism model, based on the assembly information between the components of the attribute information and the component, incorporating the indirect transmission member model, the three-dimensional model creation means to create a three-dimensional mechanism model, the attribute of the calculated for the specified the power transmission system indirect transmission member, scheduled indirect transmission member and attributes and validation hand stages for verifying whether they meet the three-dimensional mechanism model created in the above and more three-dimensional model creation hand stage, the indirect transmission member modeling more obtained indirectly transmitted to the hand-stage data such as member model, or the verification hands stage
Three-dimensional modeling apparatus according to an outputting hand stage for performing output such as display for more obtained verification result to. 3. For a three-dimensional mechanism model, a source and a follower of the power transmission system are displayed on a screen, and
Power transmission system specified hand stage to perform the designation of a node and a follower on the screen
And the link between the source and the follower of the specified power transmission system.
Length of belt- like indirect transmission member that connects and transmits power
Attributes about fine angle, the original of the specified power transmission system
Attributes for clauses and followers and the indirects entered
Calculated based on the thickness of the transmission member, and the indirect transmission member modeling means to create an indirect transmission member model, based on the assembly information between the components of the attribute information and the parts of the three-dimensional mechanism model, the indirect A 3D model creation method for creating a 3D mechanism model by incorporating a transmission member model
And stage, said attributes of the indirect transmission member which is calculated for the given the power transmission system, a verification hand stage of verifying whether or not to match the attributes of the scheduled indirect transmission member, is verified not match when the can, the attribute change hands stage for changing the attributes of the power transmission system, the three-dimensional model created manually stage more created three-dimensional mechanism model, more obtained the indirect transmission member modeling hand stage indirect transmission member models, etc. of data, the verification hand by the stage <br/> Ri obtained verification result, or output for outputting a display of the more changed attribute change information on the attribute change hands stage < br /> three-dimensional model generation apparatus characterized by comprising a manual stage. (4)Using a three-dimensional model creation device,
A 3D model to create and output a mechanical model
In the method, For a three-dimensional mechanism model, a dynamic with a source clause and a follower
The force transmission system is displayed on the screen, and the designation of
Steps performed on the screen,  Of the specified powertrainLink between the original clause and the follower
To transmit power ThoughSuitable beltConditionIndirect transmission of
MaterialRelated to length and angleattributeAnd the input
The thickness of the contact transmission member is determined by the
And attributes based on followersCalculate the indirect transmission
Create material modelProcess and, Attribute information of each part of the three-dimensional mechanism model and the set between parts
Based on the standing information, incorporating the indirect transmission member model
Create 3D mechanism model withProcess andWhen the output such as the display of the created three-dimensional mechanism model is performed
In both cases, the data obtained for the indirect transmission member model
Output such as display of dataProcess andCharacterized by three
How to create a dimensional model. (5)Using a three-dimensional model creation device,
A 3D model to create and output a mechanical model
In the method, For a three-dimensional mechanism model, a dynamic with a source clause and a follower
The force transmission system is displayed on the screen, and the designation of
Steps performed on the screen , Specified power transmission systemLink between the original clause and the follower
To connect and transmit powerSuitable beltConditionIndirect transmission of
MaterialRelated to length and angleAttribute, Specified power transmission
Attributes related to the source and followers of the ancestry and entered
Based on the thickness of the indirect transmission memberCalculate the indirect transmission
Create material modelProcess and, Calculated as conforming to the specified power transmission system
The attribute of the indirect transmission member is the attribute of the planned indirect transmission member
Verify that it matchesThe steps to be performed and, The verification results or calculated data on indirect transmission members
Output and display of the data
Depending on the results, the created indirect transmission member model
Output to the 3D modelProcess
A three-dimensional model creation method characterized by the following.