CN109635323B - Semantic-based automatic reasoning method for assembly design of standard component of steel plate die - Google Patents
Semantic-based automatic reasoning method for assembly design of standard component of steel plate die Download PDFInfo
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- CN109635323B CN109635323B CN201811309409.6A CN201811309409A CN109635323B CN 109635323 B CN109635323 B CN 109635323B CN 201811309409 A CN201811309409 A CN 201811309409A CN 109635323 B CN109635323 B CN 109635323B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a semantic-based automatic reasoning method for assembly design of a standard component of a steel plate die, which is characterized by comprising the following steps of: s1, constructing a semantic network of a steel plate die and defining inference rules of a standard component of the steel plate die; s2, when the template components of a certain steel plate mold are given, the template components are instantiated by using a semantic network, namely, the current mold is described by using object classification and object attributes, and the type of the required standard components among the template components is deduced through a defined reasoning rule. The invention realizes the automatic reasoning of the standard component types required to be assembled by the semantic expression of the steel plate mould template components.
Description
Technical Field
The invention relates to the field of automation of steel plate die design, in particular to an automatic reasoning method for an assembly type of a steel plate die standard component.
Background
For complex sheet metal part steel plate moulds, hundreds of standard parts are generally assembled. In the design of the steel plate mold, a large amount of time is consumed in the selection, positioning and parameter setting of the standard component, so that the automatic selection, positioning and parameter setting of the standard component are problems to be solved urgently.
The automatic assembly of the standard parts of the injection mold is researched by key laboratories of China national center of technology and die technology of China, and the automatic assembly method of the standard parts based on the rule set is provided. The Beijing university of science and engineering machinery and vehicle college uses a parameterized assembly modeling technology to construct a standard component containing assembly information, and the standard component is quickly assembled by reading the assembly information and a size calculation rule when in use.
The two methods well solve the problems of standard part modeling and standard part parameter setting facing automatic assembly, but manual processing is performed on the entry of the automatic assembly of the standard part, namely, the type of the required standard part is manually specified, the requirement on the proficiency of an operator is high, manual specification is time-consuming and labor-consuming, and the efficiency is low.
Disclosure of Invention
Aiming at least one of the defects or improvement requirements in the prior art, the invention provides an automatic reasoning method for the assembly design of the steel plate die standard component based on semantics, which realizes the automatic reasoning of the type of the standard component required to be assembled by the semantic expression of the steel plate die template component.
In order to achieve the above object, according to one aspect of the present invention, there is provided an automatic reasoning method for assembly design of a semantic-based steel plate mold standard, comprising the steps of:
s1, constructing a semantic network of a steel plate die and defining an inference rule of a standard component of the steel plate die;
the method comprises the steps of constructing a steel plate die semantic network, wherein the steps of defining object classification and defining object attributes are included; the object classification comprises a template component and a standard component; the object attribute is the matching relation between the self attribute of the template component and the template component;
defining a steel plate die standard component inference rule, namely defining the type of a standard component between template components according to the self attribute of the template components and the matching relationship between the template components;
s2, when the template components of a certain steel plate mold are given, the template components are instantiated by using a semantic network, namely, the current mold is described by using object classification and object attributes, and the types of the required standard components among the template components are deduced through a defined inference rule.
Preferably, the standard component comprises a power device, a positioning device, a guide device, a discharging device and a connecting device.
Preferably, defining the property of the template member itself includes dividing the template member into a fixed plate and a moving plate according to the motion state.
Preferably, defining the matching relationship between the template components comprises:
dividing the matching into horizontal matching and vertical matching according to the position relation between adjacent plates;
dividing the motion relationship between adjacent plates into closed matching and fixed matching;
dividing the horizontal matching plate into an inner side contact and an outer side contact according to the reference surface relation of the horizontal matching plate;
the contact point relationship of the vertical matching plate is classified into full contact, area contact and multi-area contact.
Preferably, the steel plate die standard component inference rule comprises:
if two plates/three plates in the template component are fixed plates and have a vertical matching relationship, a connecting device is assembled between the two plates;
if one plate in the template components is a fixed plate and the other plate is a moving plate and has a moving matching relation and a vertical matching relation, a power device, a guide device and a discharging device are assembled between the two plates;
if two plates in the template component are fixed plates and have a vertical matching relation and an internal contact relation, the connecting device is assembled between the two plates.
Preferably, the template component comprises an upper supporting plate, an upper cushion block, an upper die holder, an upper clamping plate, a stop plate, an upper stripper plate, an upper template, a lower clamping plate, a lower backing plate, a lower die holder, a lower cushion block and a lower supporting plate.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: according to the semantic-based automatic reasoning method for the standard component assembly design of the steel plate die, disclosed by the invention, through semantic expression of the steel plate die component, after a designer sets the template component, a computer can automatically reason out the type of the required standard component, and the effect of improving the die design efficiency is huge.
Drawings
FIG. 1 is a schematic diagram of an outer plate of an electrical household appliance;
FIG. 2 is a schematic view of a template member configuration of a mold for the outer panel member of FIG. 1;
FIG. 3 is a schematic diagram of a mold instantiated using a semantic network; wherein the nodes represent template components and the arrows represent matching relationships between the template components;
fig. 4 is a flow diagram of an automatic reasoning method for the semantic-based steel plate mold standard component assembly design of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to specific embodiments.
As shown in fig. 1-4, the invention relates to an automatic reasoning method for assembly design of a semantic-based steel plate mold standard component, which comprises the following steps:
constructing a semantic network of the steel plate die and defining inference rules of a standard component of the steel plate die at the early stage; when the template components of a certain steel plate mold are given, the template components are instantiated by using a semantic network, namely, the object classification and the object attributes are used for describing the current mold, and the type of the required standard component among the template components is deduced through a defined inference rule.
And constructing the semantic network of the steel plate mold comprises defining object classification and object attribute.
Wherein the object classification includes a template component and a standard component. Fig. 1 shows an outer plate of a household electrical appliance, and fig. 2 is a schematic structural diagram of a template component of a mold, which generally includes an upper supporting plate 1, an upper cushion block 2, an upper mold base 3, an upper clamping plate 4, a stop plate 5, an upper stripper plate 6, an upper template 7, a lower template 8, a lower clamping plate 9, a lower cushion plate 10, a lower mold base 11, a lower cushion block 12, and a lower supporting plate 13 from top to bottom. The standard component comprises a power device, a positioning device, a guiding device, a discharging device, a connecting device and the like.
The object attribute is the matching relation between the attribute of the template component and the template component. For example, the template member is divided into a fixed plate and a moving plate according to the moving state; dividing the matching into horizontal matching and vertical matching according to the position relation between adjacent plates; dividing the motion relationship between adjacent plates into closed matching and fixed matching; dividing the horizontal matching plate into an inner side contact and an outer side contact according to the reference surface relation of the horizontal matching plate; the contact point relationship of the vertical matching plate is classified into full contact, area contact, multi-area contact, and the like.
The steel plate mould standard component reasoning rule comprises the following steps:
1. if two plates/three plates in the template component are fixed plates and have a vertical matching relationship, a connecting device is assembled between the two plates;
2. if one plate in the template component is a fixed plate and the other plate is a moving plate and has a motion matching relation and a vertical matching relation, assembling a power device, a guide device and a discharging device between the two plates;
3. if two plates in the template component are fixed plates and have a vertical matching relation and an internal contact relation, the connecting device is assembled between the two plates.
And (4) reasoning results:
1. a connecting device is needed among the upper supporting plate 1, the upper cushion block 2 and the upper die base 3;
2. a power device, a guide device and a discharging device are needed between the upper clamping plate 4 and the upper stripper plate 6;
3. a connecting device is needed among the upper die holder 7, the upper clamping plate 4 and the stop plate 5;
4. connecting devices are needed among the upper clamping plate 4, the stop plate 5 and the upper die plate 7;
5. a connecting device is needed among the lower supporting plate 13, the lower cushion block 12 and the lower die holder 11;
6. a power device, a guide device and a discharge device are needed between the lower template 8 and the upper stripper plate 6.
Through the automatic reasoning method for the steel plate die standard component, after a designer sets the template structure, the computer can automatically deduce the type of the required standard component, and the method has a great effect on improving the die design efficiency.
It will be understood by those skilled in the art that the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, since various modifications, substitutions and improvements within the spirit and scope of the invention are possible and within the scope of the appended claims.
Claims (2)
1. An automatic reasoning method for assembly design of a steel plate die standard component based on semantics is characterized by comprising the following steps:
s1, constructing a semantic network of a steel plate die and defining inference rules of a standard component of the steel plate die;
the method comprises the steps of constructing a steel plate die semantic network, wherein the steps of defining object classification and defining object attributes are included; the object classification comprises a template component and a standard component, wherein the standard component comprises a power device, a positioning device, a guiding device, a discharging device and a connecting device; the object attribute is the matching relationship between the template component self attribute and the template component, wherein the definition of the template component self attribute comprises the step that the template component is divided into a fixed plate and a moving plate according to the motion state, and the definition of the matching relationship between the template components comprises the following steps:
dividing the matching into horizontal matching and vertical matching according to the position relation between adjacent plates;
dividing the motion relationship between adjacent plates into closed matching and fixed matching;
dividing the horizontal matching plate into an inner side contact and an outer side contact according to the reference surface relation of the horizontal matching plate;
dividing the contact point relationship of the vertical matching plate into full contact, area contact and multi-area contact;
defining a steel plate die standard component inference rule, namely defining the type of a standard component between template components according to the self attribute of the template components and the matching relationship between the template components; the steel plate die standard component inference rule comprises the following steps:
if two plates/three plates in the template component are fixed plates and have a vertical matching relationship, a connecting device is assembled between the two plates;
if one plate in the template components is a fixed plate and the other plate is a moving plate and has a moving matching relation and a vertical matching relation, a power device, a guide device and a discharging device are assembled between the two plates;
if two plates in the template component are fixed plates and have a vertical matching relationship and an internal contact relationship, assembling a connecting device between the two plates;
s2, when the template components of a certain steel plate mold are given, the template components are instantiated by using a semantic network, namely, the current mold is described by using object classification and object attributes, and the type of the required standard components among the template components is deduced through a defined reasoning rule.
2. The automatic reasoning method for the semantic-based steel plate mold standard component assembly design according to claim 1, wherein:
the template component comprises an upper supporting plate (1), an upper cushion block (2), an upper die base (3), an upper clamping plate (4), a stop plate (5), an upper stripper plate (6), an upper template (7), a lower template (8), a lower clamping plate (9), a lower backing plate (10), a lower die base (11), a lower cushion block (12) and a lower supporting plate (13).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104809186A (en) * | 2015-04-20 | 2015-07-29 | 广东工业大学 | Constructing method for mold design and manufacturing knowledge base |
| CN105975650A (en) * | 2016-03-31 | 2016-09-28 | 北京理工大学 | Intelligent design method of clamp structure |
| CN106204317A (en) * | 2016-07-12 | 2016-12-07 | 桂林电子科技大学 | Subassembly detection method based on body |
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| US7177799B2 (en) * | 2002-01-14 | 2007-02-13 | Microsoft Corporation | Semantic analysis system for interpreting linguistic structures output by a natural language linguistic analysis system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104809186A (en) * | 2015-04-20 | 2015-07-29 | 广东工业大学 | Constructing method for mold design and manufacturing knowledge base |
| CN105975650A (en) * | 2016-03-31 | 2016-09-28 | 北京理工大学 | Intelligent design method of clamp structure |
| CN106204317A (en) * | 2016-07-12 | 2016-12-07 | 桂林电子科技大学 | Subassembly detection method based on body |
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