CN104036092A - Three-dimensional process model modeling method oriented to assembly process - Google Patents
Three-dimensional process model modeling method oriented to assembly process Download PDFInfo
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- CN104036092A CN104036092A CN201410296431.7A CN201410296431A CN104036092A CN 104036092 A CN104036092 A CN 104036092A CN 201410296431 A CN201410296431 A CN 201410296431A CN 104036092 A CN104036092 A CN 104036092A
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Abstract
The invention discloses a three-dimensional process model modeling method oriented to an assembly process. The modeling method comprises a rough assembly process stage and a refined assembly process stage. The rough assembly process stage comprises the following steps of (a) mapping products which are required to be subjected to assembly process designing into corresponding task nodes according to a product information model, and keeping a hierarchical relation between the products so as to obtain a task structure tree of a disassembling process model; (b) respectively disassembling the various task nodes of the task structure tree from the top layer to the bottom layer, and recording a part disassembling sequence and a part disassembling path; (c) obtaining the disassembling process model after all parts are detached; and (d) mapping the disassembling process model into a rough assembly process model. By using the rough assembly process model, a part assembling sequence and a part assembling path are recorded. By using the modeling method, the assembly process model is established on the basis of hierarchical structures of the products, all assembly process information of the products in a system is integrated, and an assembly process file can be directly generated.
Description
Technical field
The Technology Modeling method based on three-dimensional model the present invention relates to and the solution of expression mechanism, the main three-dimensional process model modelling approach of setting up towards assembly technology.
Background technology
Along with the continuous expansion of three-dimensional CAD (Computer Aided Design) in manufacturing ranges of application such as Aeronautics and Astronautics, electronics, weapon, automobile, boats and ships, the technological design of realization based on three-dimensional model, and three-dimensional process is applied in manufacture process, become the inexorable trend of future development.Assembly technology design is an important component part of technological design, and the three dimensional stress of assembly technology design is the key link of technological design three dimensional stress.When the assembly technology design software of developing based on three-dimensional model, need to study the modeling method of three-dimensional assembly technique model.
In current assembly process model expression, lack the assembly technology information such as fit dimension, tolerance, technological requirement; In assembly process model, do not comprise auxiliary process (comprise the cleaning of parts, detect etc.), can not directly generate assembly technique file.
Described in comprehensive, setting up a brand-new three-dimensional process model modelling approach towards assembly technology is the approach addressing the above problem, this modeling method is carried out the foundation of assembly process model based on product level structure, gather all assembly technology information of product in system, can directly generate assembly technique file.
Summary of the invention
The present invention proposes and has designed a kind of three-dimensional process model modelling approach towards assembly technology.
The solution that the present invention adopts is as follows:
A three-dimensional process model modelling approach towards mechanical processing technique, is characterized in that: this modeling method comprises thick assembly technology stage and smart assembly technology stage, wherein:
The thick assembly technology stage comprises: a) according to product information model, the product that need to carry out assembly technology design is mapped to corresponding task node, the hierarchical relationship between retained product, the task structure tree that obtains dismantling process modeling; B) according to order from top to bottom, respectively each task node of task structure tree is carried out to disassembling section, record parts disassembly sequence and path; C), after all parts have been dismantled, just obtained dismounting process modeling; D) dismounting process modeling is mapped to thick assembly process model, this thick assembly process model has recorded assembling sequence and the path of parts;
The essence assembly technology stage: add auxiliary process and technique markup information at thick assembly process model, finally obtain smart assembly process model.
The information that task node comprises has: task object list, associated task list and operation list.
Task object list is identical with the sub level parts list of corresponding component unit, and the concrete operation comprising for this task provides operand, and the subassembly in list is all in the lock state.
Associated task list records task corresponding to parts in task object list, in fittage, need to first complete the task in associated task list, be called assembled in advance task list, in like manner, in dismounting task, be referred to as follow-up dismounting task list.
Operation list is comprised of series of processes, has described the specific operation process of sub-parts, is the core content of task node; Operation break-down is work step and activity, and in same work step, the continuous motion of simultaneously selected one or more parts is considered as an activity.
A kind of three-dimensional process model modelling approach towards mechanical processing technique of the present invention.This modeling method is mainly divided into thick assembly technology stage and smart assembly technology stage, and wherein, the thick assembly technology stage, by Product Assembly model is dismantled, obtains feasible assembling sequence and the assembly path of product; The essence assembly technology design phase is that thick assembly technology supplements the information such as fitted position, tolerance, technique content, auxiliary process, improves three-dimensional assembly technique model.Modeling method of the present invention is carried out the foundation of assembly process model based on product level structure, gathered all assembly technology information of product in system, can directly generate assembly technique file.
Accompanying drawing explanation
Fig. 1 is assembly technology modeling process flow diagram of the present invention.
Fig. 2 is that the present invention dismantles task and fittage mapping relations figure.
Embodiment
The detailed modeling flow process of three-dimensional assembly technique is as follows:
1) the thick assembly technology design phase: a) according to the product tree after adjusting, the parts (or whole product) that need to carry out assembly technology design are mapped to corresponding task node, hierarchical relationship between reserved unit, the task structure tree that obtains dismantling process modeling; B) according to order from top to bottom, respectively each task node of task structure tree is carried out to disassembling section, record parts disassembly sequence and path; C), after all parts have been dismantled, just obtained dismounting process modeling.By backward, dismounting process modeling is mapped to thick assembly process model, this model essential record assembling sequence and the path of parts.
2) the smart assembly technology design phase: the main task in this stage is for thick assembly process model adds the information such as auxiliary process and technique mark, finally obtains smart assembly process model.This model has more perfect technique information, has both comprised assembling sequence and path, has comprised assembling auxiliary process and markup information simultaneously, can be for assembly simulation or direct generating process file.
Above-mentioned dismounting process modeling, thick assembly process model and smart assembly process model be same assembly process model in the form of expression of different phase, they have identical framed structure.
The task structure tree of assembly process model is mainly used in the hierarchical relationship between expression task, and each task node has recorded concrete technological process.The information that task node mainly comprises has: task object list, associated task list and operation list.
1) task object list is identical with the sub level parts list of corresponding component unit, and the concrete operation comprising for this task provides operand.Subassembly in list is all in the lock state (be that subassembly is non-disconnectable, be considered as super part).
2) associated task list records task corresponding to parts in task object list.In fittage, need to first complete the task in associated task list, be called assembled in advance task list, in like manner, in dismounting task, be referred to as follow-up dismounting task list.
3) operation list is comprised of series of processes, has described the specific operation process of sub-parts, is the core content of task node.Operation can be subdivided into work step, activity.Wherein operation, work step are identical with the definition in Practical Project, and movablely refer to the combination to the basic operation of parts.In same work step, the continuous motion of simultaneously selected one or more parts is considered as an activity.The concept of introducing activity can give expression to the parts motion of the bottom, and in activity, has recorded the motion path of parts.
Claims (5)
1. towards a three-dimensional process model modelling approach for assembly technology, it is characterized in that: this modeling method comprises thick assembly technology stage and smart assembly technology stage, wherein:
The thick assembly technology stage comprises: a) according to product information model, the product that need to carry out assembly technology design is mapped to corresponding task node, the hierarchical relationship between retained product, the task structure tree that obtains dismantling process modeling; B) according to order from top to bottom, respectively each task node of task structure tree is carried out to disassembling section, record parts disassembly sequence and path; C), after all parts have been dismantled, just obtained dismounting process modeling; D) dismounting process modeling is mapped to thick assembly process model, this thick assembly process model has recorded assembling sequence and the path of parts;
The essence assembly technology stage: add auxiliary process and technique markup information at thick assembly process model, finally obtain smart assembly process model.
2. the three-dimensional process model modelling approach towards assembly technology according to claim 1, is characterized in that: the information that task node comprises has: task object list, associated task list and operation list.
3. the three-dimensional process model modelling approach towards assembly technology according to claim 2, it is characterized in that: task object list is identical with the sub level parts list of corresponding component unit, the concrete operation comprising for this task provides operand, and the subassembly in list is all in the lock state.
4. the three-dimensional process model modelling approach towards assembly technology according to claim 2, it is characterized in that: associated task list records task corresponding to parts in task object list, in fittage, need to first complete the task in associated task list, be called assembled in advance task list, in like manner, in dismounting task, be referred to as follow-up dismounting task list.
5. the three-dimensional process model modelling approach towards assembly technology according to claim 2, is characterized in that: operation list is comprised of series of processes, has described the specific operation process of sub-parts, is the core content of task node; Operation break-down is work step and activity, and in same work step, the continuous motion of simultaneously selected one or more parts is considered as an activity.
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| CN105893715A (en) * | 2016-06-01 | 2016-08-24 | 江苏科技大学 | Process information intelligent matching method based on machining characteristics |
| CN106802990A (en) * | 2017-01-06 | 2017-06-06 | 江南造船(集团)有限责任公司 | A kind of shipbuilding human engineering method of tire and system |
| CN107330206A (en) * | 2017-07-06 | 2017-11-07 | 艾凯克斯（嘉兴）信息科技有限公司 | A kind of three-dimensional automatic marking method of feature based mapping |
| CN108038910A (en) * | 2017-11-10 | 2018-05-15 | 广东电网有限责任公司教育培训评价中心 | The implementation method of substation's main equipment Virtual Reality Demonstration |
| CN108388146A (en) * | 2018-02-01 | 2018-08-10 | 东南大学 | A kind of three-dimensional assembly technique design system and operation method based on information physical fusion |
| CN109165430A (en) * | 2018-08-09 | 2019-01-08 | 北京汽车研究总院有限公司 | A kind of Vehicular intelligent process route modeling method |
| CN111768099A (en) * | 2020-06-29 | 2020-10-13 | 山东浪潮通软信息科技有限公司 | Model part-based task decomposition method in scientific research and production mode |
| CN111881578A (en) * | 2020-07-27 | 2020-11-03 | 清华大学 | Graph database based mechanical product digital twin model layered modeling method |
| CN112100742A (en) * | 2020-08-28 | 2020-12-18 | 上海交通大学 | Map processing method and device based on three-dimensional model of ship structure and storage medium |
| CN112801252A (en) * | 2021-04-01 | 2021-05-14 | 广云物联网科技(广州)有限公司 | Information tracing and tracing oriented industrial control perception Internet of things system |
| CN117621053A (en) * | 2023-11-09 | 2024-03-01 | 中国矿业大学 | Modeling method for belt conveyor disassembly robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893715A (en) * | 2016-06-01 | 2016-08-24 | 江苏科技大学 | Process information intelligent matching method based on machining characteristics |
| CN106802990A (en) * | 2017-01-06 | 2017-06-06 | 江南造船(集团)有限责任公司 | A kind of shipbuilding human engineering method of tire and system |
| CN107330206B (en) * | 2017-07-06 | 2020-04-28 | 艾凯克斯（嘉兴）信息科技有限公司 | Three-dimensional automatic labeling method based on feature mapping |
| CN107330206A (en) * | 2017-07-06 | 2017-11-07 | 艾凯克斯（嘉兴）信息科技有限公司 | A kind of three-dimensional automatic marking method of feature based mapping |
| CN108038910A (en) * | 2017-11-10 | 2018-05-15 | 广东电网有限责任公司教育培训评价中心 | The implementation method of substation's main equipment Virtual Reality Demonstration |
| CN108388146A (en) * | 2018-02-01 | 2018-08-10 | 东南大学 | A kind of three-dimensional assembly technique design system and operation method based on information physical fusion |
| CN109165430B (en) * | 2018-08-09 | 2023-04-18 | 北京汽车集团越野车有限公司 | Vehicle intelligent process route modeling method |
| CN109165430A (en) * | 2018-08-09 | 2019-01-08 | 北京汽车研究总院有限公司 | A kind of Vehicular intelligent process route modeling method |
| CN111768099A (en) * | 2020-06-29 | 2020-10-13 | 山东浪潮通软信息科技有限公司 | Model part-based task decomposition method in scientific research and production mode |
| CN111768099B (en) * | 2020-06-29 | 2024-05-14 | 浪潮通用软件有限公司 | Task decomposition method based on model part in scientific research production mode |
| CN111881578A (en) * | 2020-07-27 | 2020-11-03 | 清华大学 | Graph database based mechanical product digital twin model layered modeling method |
| CN112100742A (en) * | 2020-08-28 | 2020-12-18 | 上海交通大学 | Map processing method and device based on three-dimensional model of ship structure and storage medium |
| CN112100742B (en) * | 2020-08-28 | 2022-05-31 | 上海交通大学 | Method and device for processing map based on three-dimensional model of hull structure and storage medium |
| CN112801252A (en) * | 2021-04-01 | 2021-05-14 | 广云物联网科技(广州)有限公司 | Information tracing and tracing oriented industrial control perception Internet of things system |
| CN117621053A (en) * | 2023-11-09 | 2024-03-01 | 中国矿业大学 | Modeling method for belt conveyor disassembly robot |
| CN117621053B (en) * | 2023-11-09 | 2024-05-31 | 中国矿业大学 | Modeling method for belt conveyor disassembly robot |
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