CN116432351A - Method and system for updating association of parts in assembly - Google Patents
Method and system for updating association of parts in assembly Download PDFInfo
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- CN116432351A CN116432351A CN202310566105.2A CN202310566105A CN116432351A CN 116432351 A CN116432351 A CN 116432351A CN 202310566105 A CN202310566105 A CN 202310566105A CN 116432351 A CN116432351 A CN 116432351A
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- 238000012986 modification Methods 0.000 claims abstract description 12
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- 238000004590 computer program Methods 0.000 claims description 4
- 230000014509 gene expression Effects 0.000 abstract description 9
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
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- G06F16/23—Updating
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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Abstract
The invention provides a method and a system for updating the association of parts in an assembly, wherein the association relation of the parts in the assembly is determined according to a relation structure tree, an associated part relational expression is established according to the relation structure tree, the size of the parts to be modified is updated and modified according to the size modification information of the parts to be modified and the part fixed relational expression associated with the parts, the size of the parts to be modified is updated and modified, the synchronous updating of the associated parts is realized, the complexity of parameter modification in the assembly is reduced, and the later modeling efficiency of the assembly is improved.
Description
Technical Field
The invention belongs to the technical field related to assembly design, and particularly relates to a method and a system for updating association of parts in an assembly.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
CAD and other research and development design industrial software are imperial crowns in industrial software, are key points for improving product development capability and efficiency, and are short plates and bottlenecks of the current industrial software.
The function of fitting the parts can be implemented in CAD software, the assembly being a device or sub-assembly of a device formed by splicing parts, each having a respective size, there being a possibility of a link between the sizes of the different parts, such as in practical engineering where the flange is to be embedded in a pipe, requiring the inner diameter of the flange to be equal to the inner diameter of the pipe. The related structural relationship is generally broken when the size of a part is modified, and when the size of a certain part is modified, the size corresponding to the part related to the part is often not modified and updated, and the related structural relationship is difficult to update synchronously in an assembly body.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method and a system for updating the association of parts in an assembly body, which realize the synchronous updating and modification of the sizes of the associated parts when the sizes of certain parts are modified through the establishment of a relation structure tree and a relation formula of the parts.
In order to achieve the above object, a first aspect of the present invention provides a method for updating association of components in an assembly, comprising:
according to the assembly relation of each part in the assembly body, the parts are respectively used as father nodes or child nodes to establish a relation structure tree;
obtaining parts with dimension association based on the constructed relation structure tree, and establishing a part relation formula with dimension association;
and acquiring size modification information of the target part, and updating the size information of the part associated with the target part according to the part relation.
A second aspect of the present invention provides a component-related updating system in an assembled body, comprising:
a first establishing module: according to the assembly relation of each part in the assembly body, the parts are respectively used as father nodes or child nodes to establish a relation structure tree;
and a second building module: obtaining parts with dimension association based on the constructed relation structure tree, and establishing a part relation formula with dimension association;
and an updating module: and acquiring size modification information of the target part, and updating the size information of the part associated with the target part according to the part relation.
A third aspect of the present invention provides a computer apparatus comprising: the system comprises a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, the processor and the memory are communicated through the bus when the computer device runs, and the machine-readable instructions are executed by the processor to execute a part association updating method in an assembly.
A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor performs a method of component association update in an assembly.
The one or more of the above technical solutions have the following beneficial effects:
according to the invention, through establishing a relation structure tree of each part in the assembly body, determining the association relation of each part according to the relation structure tree, establishing an associated part relation, updating and modifying the size of the part associated with the part to be modified according to the size modification information of the part to be modified and the part fixed relation associated with the part, realizing synchronous updating of the associated part, reducing the complexity of parameter modification in the assembly body, and improving the modeling efficiency of the assembly body in the later period.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a flowchart of a method for updating association of components in an assembly according to a first embodiment of the present invention;
FIG. 2 is a diagram illustrating a tree of relationship structures according to an embodiment of the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Example 1
As shown in fig. 1, this embodiment discloses a method for updating association between components in an assembly, including:
according to the assembly relation of each part in the assembly body, each part is respectively used as a father node and a child node to establish a relation structure tree;
obtaining parts with dimension association based on the constructed relation structure tree, and establishing a part relation formula with dimension association;
and acquiring size modification information of the target part, and updating the size information of the part associated with the target part according to the part relation.
In this embodiment, three-dimensional parts of a parametric design are assembled to obtain an assembly. And obtaining the upper and lower relation in the assembly body to obtain the assembly tree structure. For example, the assembly body can be divided into three stages of equipment, components and parts. The component is formed by combining parts and is the upper level of the parts; the device is formed by combining the components and is the upper level of the components.
The established relational structure tree comprises the codes of all the nodes, the corresponding node names, namely the names of the parts and the sizes of the parts.
In the relationship structure tree established in the present embodiment, the parent node is to store the size association in the parent node for describing the assembly relationship.
As shown in fig. 2, a relational structure tree is established according to the upper-lower relationship of each part in the assembly, a dimension association relationship is formed among the parts B, C and D, and if a common parent node of the sub-node B corresponding to the part B, the sub-node C corresponding to the part C and the sub-node D corresponding to the part D is the part a, then the part expressions among the parts B, C and D are stored in the parent node corresponding to the part a. And if the father node shared by the child nodes E corresponding to the part E and the child node F corresponding to the part F is the part D, storing the expression of the part between the part E and the part F into the father node corresponding to the part D.
In this embodiment, each component has a unique code, and the component expression includes a path description (size association relationship) of a certain component to a common parent node with the target component, and a mathematical expression between the sizes of the component and the target component.
Wherein the mathematical expression includes dimensional relationships of the target part and the associated part in terms of length, inside diameter, angle, etc.
In this embodiment, the modified size information of the target component is obtained, the object is parsed from the character string and is corresponding to the object, and the mathematical expression stored in the common upper level of the affected part and the affected part is updated. If the diameter of the nozzle is associated with the outer diameter of the flange, then when the user modifies the outer diameter of the flange, the diameter of the nozzle is updated as the outer diameter of the flange is contained in the nozzle's diameter expression.
The corresponding dimensions of the part affected by the part are also modified, and the structure of the part and the affected part in the assembled structure is updated.
The properties of the present assembly call child or parent assembly use a "@" split, and the present assembly calls a property "@" split associated across levels (not directly parent or child).
For example: d_l+d_il-nomal_flag_7|1. D_h-nomal_flag_7|1. D_fx;
hook_float_head_he@tube_box_A_1_1|1@NB_T47023FM_1|1.d_D4+hoo k_float_head_he@tube_box_A_1_1|1@cylinder_barrel_1|1.d_D；
wherein the dD4 size of NB_T47023FM_1 in the sub-assembly of hook_flow_head_he (heat exchanger) tube_box_A_1_1 in the sub-assembly of tube_T 47023 FM_1+the dD size of tube_box_A_1_1 in the sub-assembly of hook_flow_head_he (heat exchanger).
Example two
The embodiment provides a component association updating system in an assembly, which comprises:
a first establishing module: according to the assembly relation of each part in the assembly body, each part is respectively used as a father node and a child node to establish a relation structure tree;
and a second building module: obtaining parts with dimension association based on the constructed relation structure tree, and establishing a part relation formula with dimension association;
and an updating module: and acquiring size modification information of the target part, and updating the size information of the part associated with the target part according to the part relation.
Example III
It is an object of the present embodiment to provide a computing device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, which processor implements the steps of the method described above when executing the program.
Example IV
An object of the present embodiment is to provide a computer-readable storage medium.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the above method. A machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The steps involved in the devices of the second, third and fourth embodiments correspond to those of the first embodiment of the method, and the detailed description of the embodiments can be found in the related description section of the first embodiment. The term "computer-readable storage medium" should be taken to include a single medium or multiple media including one or more sets of instructions; it should also be understood to include any medium capable of storing, encoding or carrying a set of instructions for execution by a processor and that cause the processor to perform any one of the methods of the present invention.
It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented by general-purpose computer means, alternatively they may be implemented by program code executable by computing means, whereby they may be stored in storage means for execution by computing means, or they may be made into individual integrated circuit modules separately, or a plurality of modules or steps in them may be made into a single integrated circuit module. The present invention is not limited to any specific combination of hardware and software.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (10)
1. A method of updating a component association in an assembly, comprising:
according to the assembly relation of each part in the assembly body, the parts are used as father nodes or child nodes to establish a relation structure tree;
obtaining parts with dimension association based on the constructed relation structure tree, and establishing a part relation formula with dimension association;
and acquiring size modification information of the target part, and updating the size information of the part associated with the target part according to the part relation.
2. The method for updating association of components in an assembly according to claim 1, wherein the relational structure tree is established according to a relationship between upper and lower levels of each component in the assembly.
3. A method of updating the association of components in an assembly as claimed in claim 1, wherein the dimensional relationships and the code of the associated component are stored on a common parent node for the associated component.
4. The method of component-related updating in an assembly of claim 1, wherein the component relationship comprises a path description from a parent component to an associated component child node, size information for a target component, and a size relationship for the target component and the associated component.
5. The method of component-related updating in an assembly of claim 4, wherein the dimensional relationship comprises a mathematical relationship between a length, radius, angle of the target component and a length, radius, angle of the associated component.
6. A component-related update system in an assembly, comprising:
a first establishing module: according to the assembly relation of each part in the assembly body, the parts are respectively used as father nodes or child nodes to establish a relation structure tree;
and a second building module: obtaining parts with dimension association based on the constructed relation structure tree, and establishing a part relation formula with dimension association;
and an updating module: and acquiring size modification information of the target part, and updating the size information of the part associated with the target part according to the part relation.
7. The component-in-assembly association updating system of claim 6, wherein in the second building block, the component relationship comprises a path description from the parent component to the child node of the associated component, size information for the target component, and a size relationship for the target component and the associated component.
8. A component association update system in an assembly as claimed in claim 7, wherein in the second set-up module, the dimensional relationship includes a mathematical relationship between the length, radius, angle of the target component and the length, radius, angle of the associated component.
9. A computer device, comprising: a processor, a memory and a bus, said memory storing machine readable instructions executable by said processor, said processor and said memory communicating via the bus when the computer device is running, said machine readable instructions when executed by said processor performing a method of updating part associations in an assembly as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, performs a component association updating method in an assembly according to any of claims 1 to 7.
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| CN202310566105.2A CN116432351A (en) | 2023-05-18 | 2023-05-18 | Method and system for updating association of parts in assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118114408A (en) * | 2024-04-30 | 2024-05-31 | 成都飞机工业（集团）有限责任公司 | Group hole characteristic numerical control processing model construction method, device, medium and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118114408A (en) * | 2024-04-30 | 2024-05-31 | 成都飞机工业（集团）有限责任公司 | Group hole characteristic numerical control processing model construction method, device, medium and equipment |
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