Rapid assembly design method, drawing method and design system applied to standard parts

Abstract

The present invention relates to the technical field of three-dimensional model construction, and in particular to a rapid assembly design method, drawing method and design system applied to standard parts. The rapid assembly design method comprises the following steps: A. designing a corresponding tool body on the outside of the standard part; embedding drawing annotation information for the tool body and the standard part, and establishing a standard body library; B. designing the assembled body in the three-dimensional design platform; C. selecting the installation position of the assembly part of the assembly part on the assembled body; D. performing a difference operation on the assembled body and the assembly part; E. deleting the tool body, and copying the drawing annotation information of the tool body to the assembly structure. The rapid assembly design method can directly call the assembly parts in the standard body library to perform a difference operation on the assembled body. The standard part assembly design operation efficiency and accuracy are higher, which is convenient for realizing automatic and rapid drawing operations, and is conducive to realizing the standardization of three-dimensional model design, saving labor costs, and significantly improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of three-dimensional model construction, and in particular to a rapid assembly design method, a drawing output method and a design system applied to standard parts. Background Art

[0002] In the field of mechanical manufacturing and processing, a three-dimensional model is first designed using three-dimensional software, and then a two-dimensional drawing with processing information is drawn based on the three-dimensional model. During the processing stage, the corresponding product is processed with reference to the information shown in the two-dimensional drawing.

[0003] When using 3D software to design 3D models, one must first design the assembly, then assemble various standard parts onto the assembly. Based on the assembly relationship between the standard parts and the assembly, assembly structures are added one by one at the corresponding positions on the assembly based on the information of the standard parts. When drawing, assembly, processing, dimensions, and properties must be added one by one on the 2D drawing based on the assembly relationship and the information of the standard parts. This results in a high degree of repetitiveness, error-proneness, and low efficiency in the design and drawing of 3D models. Due to the large number of standard parts assembled in hardware molds, and the large number of holes, slots, and other structures that need to be added one by one to the mold body, existing mold 3D model assembly design and drawing processes are very inefficient and error-prone in hardware mold design and processing scenarios, severely restricting the design and manufacturing efficiency of hardware mold products. Summary of the Invention

[0004] In view of the above-mentioned defects, the purpose of the present invention is to propose a rapid assembly design method for standard parts.

[0005] Another object of the present invention is to provide a drawing output method.

[0006] Another object of the present invention is to provide a design system.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A rapid assembly design method for standard parts includes the following steps:

[0009] A. Based on the inherent information and assembly logic of the standard part, the corresponding tool body is designed on the outside of the standard part. Drawing annotation information is embedded in the tool body and the standard part to obtain the assembly part. The various assembly parts are organized and collected to establish a standard body library.

[0010] B. Design the assembly in a 3D design platform;

[0011] C. Insert the corresponding assembly part in the standard body library into the assembled body, and select the installation position of the assembly part on the assembled body;

[0012] D. The 3D design platform performs a subtraction operation on the assembled object and the assembly part based on the outer contour of the assembly part and the drawing annotation information to obtain the assembly structure;

[0013] E. Copy the tool body’s output annotation information to the assembly structure to obtain the assembly model, thus completing the assembly design operation of the standard part.

[0014] Preferably, the inherent information of the standard part is the outline shape, size and type of the standard part; the assembly logic of the standard part is the processing method used in the assembled body, the shape of the hole or groove formed by the processing, the assembly method and the assembly tolerance when the standard part is physically installed in the assembled body.

[0015] Preferably, when embedding the drawing annotation information for the tool body in step A, the following contents are included:

[0016] According to the size and shape of the tool body and the assembly logic of the corresponding standard parts, the output annotation information of the tool body is classified and integrated, and annotation marks are set for the same output annotation information to distinguish them;

[0017] Annotations are marked with numbers, letters, words and / or colors.

[0018] Preferably, in the step D, the assembly structure is a hole or groove structure provided on the assembled object for mounting the standard component.

[0019] Preferably, in step E, after the tool body is subtracted between the side wall of the assembly structure and the outer wall of the standard part, the drawing annotation information on the tool body is copied and embedded in the corresponding position of the assembly structure; the drawing annotation information includes: code information of the hole or slot, quantity information of the holes or slots, annotation text of the holes or slots, type of the holes or slots, processing method of the holes or slots and processing accuracy of the holes or slots.

[0020] A drawing output method, which uses the above-mentioned rapid assembly design method for standard parts, is characterized by comprising the following steps:

[0021] F. The 2D design platform retrieves the assembly model from the 3D design platform and converts the assembly model into a 2D design drawing based on the viewing angle information;

[0022] G. The two-dimensional design platform identifies the two-dimensional information of the assembly structure in the two-dimensional design drawing, retrieves the corresponding drawing annotation information from the assembly model, and marks the drawing annotation information in the two-dimensional design drawing.

[0023] Preferably, the operation of marking the output annotation information in the two-dimensional design drawing in the G step specifically includes the following contents: marking the annotation mark of the output annotation information at the position where the two-dimensional information of the assembly structure is located in the two-dimensional design drawing, and annotating the annotation text corresponding to each annotation mark in the annotation area of the two-dimensional design drawing; classifying and counting the annotation text of the output annotation information, and merging the same annotation text.

[0024] Preferably, the annotation mark is a number, a letter, a word and / or a color.

[0025] A design system, which applies a drawing method as described above, comprises: a standard part design module, a storage module, a three-dimensional design platform, a two-dimensional design platform, a communication association module, an annotation module and a mapping module; the standard part design module is used to design a corresponding tool body on the outside of the standard part according to the inherent information and assembly logic of the standard part; and embed drawing annotation information for the tool body and the standard part to obtain an assembly part; the storage module is used to organize and store the assembly parts to establish a standard body library; the three-dimensional design platform is used to complete the design operation of the three-dimensional model; the two-dimensional design platform is used to complete the conversion operation from the three-dimensional model to the two-dimensional design drawing; the communication association module is used to realize the information and parameter association of the three-dimensional design platform and the two-dimensional design platform; the annotation module is used to identify the two-dimensional information of the assembly structure in the two-dimensional design drawing, retrieve the corresponding drawing annotation information from the assembly model, and mark the drawing annotation information in the two-dimensional design drawing; the mapping module is used to export the two-dimensional design drawing and convert it into a drawing file of a specified format.

[0026] Preferably, the storage module is a local storage module or a cloud storage module; the two-dimensional design platform and the three-dimensional design platform are integrated into one or separately provided and are linked by wireless communication.

[0027] Beneficial effects of the embodiments of the present invention:

[0028] After the rapid assembly design method integrates the tool body and standard parts into the assembly parts, the standard parts and the tool body can always be quickly assembled to the assembled body as a whole, and an assembly structure corresponding to the standard parts assembly logic is formed on the assembled body. In this way, as long as the type and position of the standard parts on the assembled body are determined, the three-dimensional design platform can directly call the assembly parts in the standard body library to perform difference operations on the assembled body, making the standard parts assembly design operation more efficient and accurate, and more conducive to the standardization of three-dimensional model design.

[0029] The drawing method embeds drawing annotation information in the corresponding position of the assembly structure of the three-dimensional model according to the information such as the outer contour or size of the assembly structure by calling the assembly parts; when the two-dimensional design platform produces a two-dimensional design drawing according to the three-dimensional model, the drawing annotation information of each assembly structure on the two-dimensional design drawing can be quickly obtained according to the correspondence between the assembly structure of the three-dimensional model and the two-dimensional design drawing. The two-dimensional design platform can automatically generate the drawing annotation information on the two-dimensional design drawing according to the correspondence and preset requirements. The entire annotation operation does not require manual operation, is very efficient, and can ensure the accuracy of the drawing.

[0030] After the design system applies the rapid assembly design method and the drawing output method, operations such as assembly design and drawing annotation of three-dimensional models can be fully automated, which greatly improves the efficiency and accuracy of industrial design. The rapid assembly design method and drawing output method can be automatically executed by the program according to enterprise standards, which can ensure that all exported engineering drawings are consistent in standards, so that industrial design and production efficiency and accuracy can be significantly improved, which can not only save labor costs but also significantly improve production benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic flow chart of a rapid assembly design method according to one embodiment of the present invention;

[0032] Figure 2 is a schematic flow chart of a method for producing a drawing in one embodiment of the present invention;

[0033] Figure 3 It is a structural schematic diagram of an installation structure of a screw-fixed template in one embodiment of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a fast assembly of an installation structure of a screw-fixed template in one embodiment of the present invention.

[0035] Among them: a first template 1, a second template 2, a screw 3, a screw head 31, a screw rod 32, a thread 33, a tool body 4, a screw countersunk hole 51, a screw through hole 52, and a threaded through hole 53. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0037] One embodiment of the present application, such as Figure 1 As shown, a rapid assembly design method for standard parts includes the following steps:

[0038] A. Based on the inherent information and assembly logic of the standard parts, the corresponding tool body is designed on the outside of the standard parts. Drawing annotation information is embedded into the tool body and standard parts to obtain the assembly parts. The various assembly parts are organized and collected to establish a standard body library.

[0039] B. Design the assembled body in a 3D design platform.

[0040] C. Insert the corresponding assembly part in the standard body library into the assembled body, and select the installation position of the assembly part on the assembled body.

[0041] D. The three-dimensional design platform uses the outer contour of the assembly part and the drawing annotation information to perform a difference operation on the assembled body and the assembly part to obtain the assembly structure.

[0042] E. Delete the tool body of the assembly part on the assembled body, and copy the drawing annotation information of the tool body to the assembly structure to obtain the assembly model, that is, complete the assembly design operation of the standard part; it should be noted that, in some embodiments, in the E step, the tool body can also be retained and hidden during operations such as drawing; when the tool body is retained, the tool body can be re-subtracted when the mold is modified later, and the drawing annotation information can be copied to the assembled body, making operations such as mold modification more flexible and convenient.

[0043] A drawing output method, which applies the above-mentioned rapid assembly design method for standard parts, comprises the following steps:

[0044] F. The two-dimensional design platform retrieves the assembly model from the three-dimensional design platform and converts the assembly model into a two-dimensional design drawing according to the viewing angle information.

[0045] G. The two-dimensional design platform identifies the two-dimensional information of the assembly structure in the two-dimensional design drawing, retrieves the corresponding drawing annotation information from the assembly model, and marks the drawing annotation information in the two-dimensional design drawing.

[0046] Specifically, the inherent information of the standard part is the outline shape, size and type of the standard part; the assembly logic of the standard part is the processing method used in the assembled body, the shape of the hole or groove formed by the processing, the assembly method and the assembly tolerance when the standard part is physically installed in the assembled body.

[0047] More preferably, when embedding the drawing annotation information for the tool body in step A, the following contents are included:

[0048] According to the size and shape of the tool body and the assembly logic of the corresponding standard parts, the output annotation information of the tool body is classified and integrated, and annotation marks are set for the same output annotation information to distinguish them; the annotation marks are numbers, letters, words and / or colors.

[0049] Specifically, in step D, the assembly structure is a hole or groove structure provided on the assembled object for mounting the standard component.

[0050] More preferably, in step E, after the tool body between the side wall of the assembly structure and the outer wall of the standard part is deleted, the drawing annotation information on the tool body is copied and embedded in the corresponding position of the assembly structure; the drawing annotation information includes: the code information of the hole or groove, the number information of the holes or grooves, the annotation text of the holes or grooves, the type of the holes or grooves, the processing method of the holes or grooves and the processing accuracy of the holes or grooves.

[0051] More preferably, the operation of marking the output annotation information on the two-dimensional design drawing in step G specifically includes the following:

[0052] The annotation marks of the output annotation information are marked at the location of the two-dimensional information of the assembly structure in the two-dimensional design drawing, and the annotation texts corresponding to each annotation mark are annotated in the annotation area of the two-dimensional design drawing; the annotation texts of the output annotation information are classified and counted, and the same annotation texts are merged.

[0053] In order to facilitate subsequent processing and reference, various dimensions, part names, assembly relationships, assembly errors and even processing methods need to be annotated on the two-dimensional design drawings; however, if each assembly position and standard part is annotated one by one on the two-dimensional design drawings according to the traditional drawing method, it will not only increase the workload of the designer, but also cause the annotation content on the two-dimensional design drawings to be repeated and complicated, which is not convenient for reference; if the drawing annotation information on the two-dimensional design drawings is to be checked for duplicates and merged, it will further increase the workload of the designer and is likely to cause errors in the drawing annotation information; the drawing method can realize automatic annotation and merging of the drawing annotation information of the two-dimensional design drawings, and can make the annotations of the two-dimensional design drawings more concise and clear, while ensuring that the drawing annotation information is complete and accurate, so as to facilitate subsequent reference.

[0054] Specifically, the annotation mark is a number, letter, text and / or color.

[0055] In order to further explain the working process and principle of the above-mentioned rapid assembly design method and drawing method, the installation structure of the screw-fixed template in the hardware mold is taken as an example.

[0056] like Figure 3 and Figure 4As shown, the first template 1 and the second template 2 need to be fixed with six screws 3. The first template 1 and the second template 2 are the assembled parts, and the screws 3 are standard parts. When the screws are assembled on the first template 1 and the second template 2, it is necessary to add a tool body 4 on the outside of the screw 3 based on the inherent information such as the outer contour and size of the screw 3 on the first template 1 and the second template 2. Specifically, the diameter of the tool body 4 at the screw head 31 will be larger than the diameter of the screw head 31, the diameter of the tool body 4 at the screw shank 32 will be larger than the diameter of the screw shank 32, and the diameter of the tool body 4 at the thread 33 will be consistent with the bottom hole diameter of the screw 3 (the diameter when not tapped). In terms of height, the top and bottom ends of the tool body 4 protrude a certain distance from the corresponding standard parts. After the tool body 4 is added to the standard screw 3, the corresponding drawing annotation information is embedded in the outer wall of the tool body to obtain an assembly part. When the design of the first template 1 and the second template 2 is completed, the assembly parts are called and inserted into the three-dimensional design platform, and then the assembly parts are placed at the positions where they need to be assembled on the template 1 and template 2. Then, the difference function of the three-dimensional design platform is used to perform a difference operation on the first template 1 and the second template 2 with the assembly parts, and the screw countersunk holes 51, screw through holes 52 and threaded through holes 53 corresponding to the shapes of the screws can be obtained; at this time, the shapes of the screw countersunk holes 51, screw through holes 52 and threaded through holes 53 correspond to the outer contour of the tool body, thus completing the hole opening operation of the first template 1 and the second template 2; after the hole opening operation is completed, the drawing annotation information is transferred to the side walls of the screw countersunk holes 51, screw through holes 52 and threaded through holes 53 respectively. Specifically, in addition to the text-type drawing annotation information, the threaded through hole 53 can be annotated in blue, the screw through hole 52 can be annotated in red, and the screw countersunk holes 51 can be annotated in green; the corresponding standard parts are assembled and placed in the screw countersunk holes 51, screw through holes 52 and threaded through holes 53.

[0057] When it is necessary to output the installation structure of the screw-fixed template into a two-dimensional design drawing, the two-dimensional design platform retrieves the assembly model from the three-dimensional design platform and converts the assembly model into a two-dimensional design drawing according to the viewing angle information; for example, a top-down structural diagram of the installation structure of the screw-fixed template is obtained according to the top view; at this time, because the assembly structure is a hole-shaped structure, the top-down shape is a circle; when marking the output annotation information in the two-dimensional design drawing, each output annotation information is marked on the top-down structural diagram, for example, when the annotation mark is a letter, the letter is marked in the corresponding circle; color marking can also be used, such as threaded through hole 53 corresponds to a blue coil, screw through hole 52 corresponds to a red coil, and screw countersunk hole 51 corresponds to a green coil; then, according to the content of the output annotation information, the word text is displayed in the annotation area of the two-dimensional design drawing to explain the specific meaning of the annotation mark in detail. The annotation text includes the hole code, the number of holes, the hole annotation, and automatically calculated countersunk hole information, through hole information, etc.; when the circle of the two-dimensional design drawing is marked as A1, an example can be A1: 6-diameter 13.00, M12 screw through hole, through hole, diameter 20.00, back countersunk depth 24.00. The combination of color and letter text to mark the two-dimensional design can make designers know the meaning of the corresponding hole structure more intuitively; in the traditional design method, a large hardware mold drawing requires several designers and takes several days to produce the engineering drawing, which is high in labor cost and huge in time cost; in this embodiment, only one designer is required to check the attribute information such as the color and annotation text of the hole before exporting the drawing, and the engineering drawing can be automatically exported. The total time spent on a large mold drawing is about half a day, which greatly saves manpower and time costs; in the traditional design scheme, the implementation of enterprise standards depends entirely on the self-consciousness of the designers, and it is difficult to ensure that all designers can export engineering drawings in full accordance with the enterprise standards; the rapid assembly design method and drawing method described in this embodiment can be automatically executed by the program in accordance with the enterprise standards, which can ensure that all exported engineering drawings are consistent with the standards.

[0058] A design system, which applies the rapid assembly design method and the drawing method as described above, comprises: a standard part design module, a storage module, a three-dimensional design platform, a two-dimensional design platform, a communication association module, an annotation module and a mapping module; the standard part design module is used to design a corresponding tool body on the outside of the standard part according to the inherent information and assembly logic of the standard part; and embed drawing annotation information for the tool body and the standard part to obtain an assembly part; the storage module is used to organize and store the assembly parts to establish a standard body library; the three-dimensional design platform is used to complete the design operation of the three-dimensional model; the two-dimensional design platform is used to complete the conversion operation from the three-dimensional model to the two-dimensional design drawing; the communication association module is used to realize the information and parameter association of the three-dimensional design platform and the two-dimensional design platform; the annotation module is used to identify the two-dimensional information of the assembly structure in the two-dimensional design drawing, retrieve the corresponding drawing annotation information from the assembly model, and mark the drawing annotation information in the two-dimensional design drawing; the mapping module is used to export the two-dimensional design drawing into a drawing file of a specified format.

[0059] The storage module is a local storage module or a cloud storage module; the two-dimensional design platform and the three-dimensional design platform are integrated into one or separately set and are connected by wireless communication.

[0060] The standard parts in traditional three-dimensional model design only include the outer contours of the three-dimensional parts, while the assembly parts used in the rapid assembly design method include the outer contours of the standard parts and also include tool bodies; the tool body is a structure that does not actually exist on the standard parts, and the outer contour of the tool body changes according to the outer shape and transfer logic of the standard parts. The tool body provided on the outside of each specific standard part in the standard body library is fixed; the tool body is designed and stored in advance in the rapid assembly design method. In the subsequent three-dimensional design and assembly process, the assembly parts composed of the tool body and the corresponding standard parts are called together, and the overall position of the assembly parts will change with the position changes of the standard parts in the actual assembly.

[0061] After the rapid assembly design method integrates the tool body and standard parts into the assembly parts, the standard parts and the tool body can always be quickly assembled to the assembled body as a whole, and an assembly structure corresponding to the standard parts assembly logic is formed on the assembled body. In this way, as long as the type and position of the standard parts on the assembled body are determined, the three-dimensional design platform can directly call the assembly parts in the standard body library to perform difference operations on the assembled body, making the standard parts assembly design operation more efficient and accurate, and more conducive to the standardization of three-dimensional model design.

[0062] In traditional design methods, if a two-dimensional design drawing needs to be annotated based on the information of standard parts and assembly structures in the three-dimensional model, the designer needs to manually create three views of the parts first, and then annotate the various assembly structures in the three-dimensional model on the two-dimensional design drawing. Then, the type of assembly structure is determined based on experience, and the processing technology and processing standards are determined based on the type of assembly structure. Finally, this information is written into the annotation of the two-dimensional design drawing. This method of annotating two-dimensional design drawings is very inefficient and very prone to errors due to human factors.

[0063] The drawing method embeds drawing annotation information in the corresponding position of the assembly structure of the three-dimensional model according to the information such as the outer contour or size of the assembly structure by calling the assembly parts; when the two-dimensional design platform produces a two-dimensional design drawing according to the three-dimensional model, the drawing annotation information of each assembly structure on the two-dimensional design drawing can be quickly obtained according to the correspondence between the assembly structure of the three-dimensional model and the two-dimensional design drawing. The two-dimensional design platform can automatically generate the drawing annotation information on the two-dimensional design drawing according to the correspondence and preset requirements. The entire annotation operation does not require manual operation, is very efficient, and can ensure the accuracy of the drawing.

[0064] After the design system applies the rapid assembly design method and the drawing output method, operations such as assembly design and drawing annotation of three-dimensional models can be fully automated, which greatly improves the efficiency and accuracy of industrial design. The rapid assembly design method and drawing output method can be automatically executed by the program according to enterprise standards, which can ensure that all exported engineering drawings are consistent in standards, so that industrial design and production efficiency and accuracy can be significantly improved, which can not only save labor costs but also significantly improve production benefits.

[0065] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0066] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0067] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0068] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0069] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0070] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0071] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A rapid assembly design method for standard parts, characterized in that: The steps include: A. Based on the inherent information and assembly logic of the standard part, the corresponding tool body is designed on the outside of the standard part. Drawing annotation information is embedded in the tool body and the standard part to obtain the assembly part. The various assembly parts are organized and collected to establish a standard body library. B. Design the assembly in a 3D design platform; C. Insert the corresponding assembly part in the standard body library into the assembled body, and select the installation position of the assembly part on the assembled body; D. The 3D design platform performs a subtraction operation on the assembled object and the assembly part based on the outer contour of the assembly part and the drawing annotation information to obtain the assembly structure; E. Copy the tool body's output annotation information to the assembly structure to obtain the assembly model, thus completing the assembly design operation of the standard part; The inherent information of the standard part is the outline shape, size and type of the standard part; the assembly logic of the standard part is the processing method used in the assembled body, the shape of the hole or groove formed by the processing, the assembly method and the assembly tolerance when the standard part is physically installed in the assembled body.

2. The rapid assembly design method according to claim 1, characterized in that: When embedding drawing annotation information for the tool body in step A, the following contents are included: According to the size and shape of the tool body and the assembly logic of the corresponding standard parts, the output annotation information of the tool body is classified and integrated, and annotation marks are set for the same output annotation information to distinguish them; The annotation mark is a number, a letter, a word and / or a color.

3. The rapid assembly design method according to claim 1, characterized in that: In the step D, the assembly structure is a hole or groove structure provided on the assembled object for mounting the standard component.

4. The rapid assembly design method according to claim 3, characterized in that: In step E, after the tool body is subtracted between the side wall of the assembly structure and the outer wall of the standard part, the drawing annotation information on the tool body is copied and embedded in the corresponding position of the assembly structure; the drawing annotation information includes: code information of the hole or slot, quantity information of the holes or slots, annotation text of the holes or slots, type of the holes or slots, processing method of the holes or slots, and processing accuracy of the holes or slots.

5. A drawing method, which is applied to the rapid assembly design method for standard parts according to any one of claims 1 to 4, characterized in that: The steps include: F. The 2D design platform retrieves the assembly model from the 3D design platform and converts the assembly model into a 2D design drawing based on the viewing angle information; G. The two-dimensional design platform identifies the two-dimensional information of the assembly structure in the two-dimensional design drawing, retrieves the corresponding drawing annotation information from the assembly model, and marks the drawing annotation information in the two-dimensional design drawing.

6. The method for producing a drawing according to claim 5, wherein: The operation of marking the output annotation information on the two-dimensional design drawing in step G specifically includes the following: Mark the annotation marks of the output annotation information at the location of the two-dimensional information of the assembly structure in the two-dimensional design drawing, and annotate the annotation texts corresponding to each annotation mark in the annotation area of the two-dimensional design drawing; Classify and count the annotation texts of the output annotation information and merge the same annotation texts.

7. The drawing output method according to claim 5 or 6, characterized in that: Annotations are marked with numbers, letters, words and / or colors.

8. A design system, which uses the drawing method according to claim 5, characterized in that: include: Standard parts design module, storage module, 3D design platform, 2D design platform, communication and association module, annotation module and mapping module; The standard part design module is used to design a corresponding tool body on the outside of the standard part based on the inherent information and assembly logic of the standard part; and embed drawing annotation information into the tool body and the standard part to obtain an assembly part; The storage module is used to organize and store the assembly parts to establish a standard body library; The three-dimensional design platform is used to complete the design operation of the three-dimensional model; The two-dimensional design platform is used to complete the conversion operation from the three-dimensional model to the two-dimensional design drawing; The communication association module is used to realize the information and parameter association of the three-dimensional design platform and the two-dimensional design platform; The annotation module is used to identify the two-dimensional information of the assembly structure in the two-dimensional design drawing, retrieve the corresponding output annotation information from the assembly model, and mark the output annotation information in the two-dimensional design drawing; The mapping module is used to export and convert the two-dimensional design drawings into drawing files in a specified format.

9. The design system according to claim 8, characterized in that The storage module is a local storage module or a cloud storage module; the two-dimensional design platform and the three-dimensional design platform are integrated into one or separately set and are connected by wireless communication.

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