KR102193708B1 - Intelligent mold layout design method based on 3d cad - Google Patents

Abstract

In the 3D CAD-based intelligent mold layout design method according to the present invention, the modeling DB unit performs a part 3D model library in which a number of parts 3D models including 3D attribute information are registered, a product 3D model corresponding to a product to be manufactured, and modeling. Storing 2D layout information, which is information about the 2D layout generated during the process, and 3D model information generated based on the 2D layout information; After the modeling interface unit calls the product 3D model and the part 3D model library, one surface of the selected part 3D model among the plurality of part 3D models is placed on the 2D plane, and the 3D property information Creating a 2D layout on a 2D plane; Generating, by a 2D layout engine unit, a 2D mold layout, which is a 2D layout for a mold, using the 2D layout information; And a process of generating, by the 3D modeling engine unit, a 3D model for a mold using the 2D mold layout.

Description

Intelligent mold layout design method based on 3D CAD {INTELLIGENT MOLD LAYOUT DESIGN METHOD BASED ON 3D CAD}

The present invention relates to a method for designing an injection molding mold, and more particularly, designing a mold 2D layout including 3D attribute information using a 3D-based product 3D model, and then using it to design an injection molding mold for product production. It relates to a 3D CAD-based intelligent mold layout design method that enables automatic creation of 3D models.

Traditional mold design and manufacturing based on 2D drawing system has only planar design information, so it is not always possible to sufficiently convey the work contents for processing.In addition, processing can only be carried out only if the operator fully understands the shape and drawing. There will be.

To reduce the inefficiency of these traditional mold design processors, research on mold design and fabrication based on 3D CAD model and NC machining continues in mold design for three-dimensional products as three-dimensional product design is widely spread across all industries. Has been progressed. These studies have been conducted mainly by major overseas CAD modeler companies, and options are being developed and sold in the form of modules exclusively for mold design in general-purpose 3D CAD systems.

For example, Korean Patent Application Publication No. 10-0596689 discloses a technology that enables automatic generation of a 2D drawing from a 3D model in order to be used in a cardinal manual or electronic manual to facilitate illustration.

In addition, U.S. Patent Publication No. 8,174,522 is for generating 3D structure data for simulation of devices included in the LSI chip. After generating cross-sectional views having different normals for the 3D structure, positioning Disclosed is a technology capable of generating 3D structure data for a material such as an LSI semiconductor by stretching in a parallel direction to and displaying an extended material in a matching area.

Korean Patent Publication No. 10-0596689 US Patent Publication No. US 8,174,522

However, as in the prior art, the design method using the 3D CAD mold design system is mostly revised design performed by copying all or part of it after referring to similar design search, and designing the mold layout (layout) with a 2D dedicated CAD before 3D mold design. After proceeding, there is an inefficient design process in which the manual work is done again in 3D.

Accordingly, under the pressure of the recent mold industry's ultra-short delivery period, it is inevitable that the existing 3D mold design is actually a technology-trained design that copies and changes the existing 3D model and performs follow-up design regardless of the 2D layout design dimensions. As the post-process (order, production department) is advanced with the created layout, as a result, there is no connection between 2D and 3D design, and after 3D design is completed, the existing 2D design information becomes meaningless, and loss due to process errors after frequent It has a problem that cannot be avoided.

In addition, 3D model technologies have been developed and provided, but most of the mold design is still very effective under the 2D CAD environment for design drawing and layout creation and is essential for drawing creation, so it is possible to convert 2D CAD to 3D while continuing to convert the 3D environment. There is a need for a single system that allows 2D to be used in For this, 2D layout design is perfectly implemented based on 3D CAD, and at the same time, perfect conversion or minimization of changes is required in the process of 3D conversion.

For this, a synchronous technology must be applied and designed to be satisfied in a single system, and a reliable design technology with a degree of freedom of bidirectional conversion to 2D->3D or 3D->2D is required.

Accordingly, the present invention is to solve the problems of the prior art described above, and after performing a 2D mold layout design including 3D attribute information in a 3D environment, a 3D mold layout design including the designed 3D attribute information The purpose of this study is to provide a 3D CAD-based intelligent mold layout design method that enables automatic mold design and detailed design of 3D molds to be automatically generated for production-level 3D models.

In addition, the present invention provides a 3D CAD-based intelligent mold layout design method that improves usability by updating 3D attribute information reflecting such evaluation results, allowing multiple users to perform evaluation in the middle of the entire 3D model creation process. It aims to provide.

In the 3D CAD-based intelligent mold layout design method of the present invention for achieving the above object, the modeling DB unit includes a 3D model library in which a number of parts 3D models including 3D attribute information are registered, and a product 3D corresponding to the product to be manufactured. Storing a model, 2D layout information, which is information on a 2D layout generated when performing modeling, and 3D model information generated based on the 2D layout information; After the modeling interface unit calls the product 3D model and the part 3D model library, one surface of the selected part 3D model among the plurality of part 3D models is placed on the 2D plane, and the 3D property information Creating a 2D layout on a 2D plane; Generating, by a 2D layout engine unit, a 2D mold layout, which is a 2D layout for a mold, using the 2D layout information; And a process of generating, by the 3D modeling engine unit, a 3D model for the mold by using the 2D mold layout.

In addition, at least one user terminal, accessing the parts 3D model library to update the 3D attribute information; may further include.

In addition, a layout design environment setting process of allowing the modeling interface unit to set a layout design environment; And generating, by the modeling interface unit, a 3D model of the product to register 2D layout design information of the product based on the 3D CAD.

In addition, the modeling interface unit arranges a core for manufacturing the product 3D model, and includes 2D arrangement information and size and shape information of the surface corresponding to the core viewing surface of the 3D model of the runner and the gate on the surface of the arranged core. The 2D layout engine generates the 2D layout of the runner and the gate using the attribute information of the runner and the gate, and the 3D modeling engine uses the 2D layout of the runner and the gate. The process of generating a model; may further include.

In addition, the Milpin modeling interface receives attribute information including size and shape information and 2D arrangement information of the surface corresponding to the core viewing surface of the 3D model of the Milfin on the surface of the placed core, and uses the attribute information of the Milfin. The 2D layout engine generates a 2D layout of the milfin, and the 3D modeling engine generates a 3D model of the milfin using the 2D layout of the generated milfin.

In addition, the cooling modeling interface receives attribute information including 2D arrangement information and size and shape information of cooling through the surface of the arranged core, and the 2D layout engine generates a 2D layout of cooling using the cooling attribute information. , The process of generating a 3D model of the cooling by the 3D modeling engine unit using the 2D layout of the generated cooling; may further include.

In addition, the moldbase modeling interface receives attribute information including 2D arrangement information and size and shape information of the moldbase through the surface of the arranged core, and the 2D layout engine receives the 2D layout information of the moldbase using the moldbase attribute information. A process for generating a layout and generating a 3D model of the mold base by the 3D modeling engine using the 2D layout of the generated mold base; may further include.

In addition, the parts modeling interface receives 2D arrangement information of parts including one or more of standard parts, bolts, slides, and lifters through the surface of the arranged core, and attribute information including size and shape information, and attributes of parts A process in which the 2D layout engine generates a 2D layout of the parts using the information, and the 3D modeling engine generates a 3D model of the parts using the 2D layout of the generated parts; may further include.

In addition, the home modeling interface receives attribute information including 2D arrangement information and size and shape information of the groove through the surface of the arranged core, and the 2D layout engine generates a 2D layout of the groove using the attribute information of the groove. And, the process of generating a 3D model of the groove by the 3D modeling engine by using the 2D layout of the generated groove; may further include.

In addition, the work piece modeling interface may further include a process of generating a work piece including a surface of the disposed core.

In addition, the pocket modeling interface receives 2D arrangement information of the pocket and attribute information including size, shape, and drill information through the surface of the arranged core, and the 2D layout engine uses the pocket attribute information to perform the 2D layout of the pocket. And generating a 3D model of the pocket by performing a pocket drill by the 3D modeling engine by performing 2D layout and drill information of the generated groove.

The present invention having the above-described configuration enables 2D mold layout design under a 3D environment, and enables automatic 3D mold design and production application 3D model to be automatically generated through the designed 2D mold layout.

There is no connection between 2D and 3D design because the technology-following design was performed in the 3D mold design model of the prior art, and the existing 2D design information becomes meaningless after the 3D design is completed, and loss due to frequent process errors is inevitable. However, the present invention provides an effect of solving the above conventional problems by automatically generating a production-level 3D model of a 3D mold, which is a detailed design, based on the mold layout design in the prior design stage.

In addition, the present invention facilitates verification before mold manufacturing for mold manufacturing performance and 3D product manufacturing by providing a 2D/3D flexible conversion mold design process, and automatically generates assembly diagrams and component diagrams, and It provides the effect of enabling 3D (Full3D) design and composition of estimated cost elements.

In addition, in order to manufacture an assembly, sheet metal parts, welded structures, and fastening systems must be accurately and efficiently processed, and the sheet metal design must be converted into a finished product quickly, consistently and cost effectively by precisely working with welding and fasteners, saving time and money. Therefore, many manufacturers require close collaboration with companies specializing in assembly fabrication, and the need for sheet metal parts and structural parts to be delivered to the factory in a state that can be manufactured at the partner's factory without modifying or redesigning the design. However, the present invention can streamline the interaction with the assembly company and increase its accuracy while automating the assembly work, and reduce the number of coordination with the manufacturer during production and eliminate rework, thereby speeding up the process and reducing cost. to provide.

In addition, the present invention can be evaluated by a number of users in the middle of the 3D model generation process of the entire product, and the usability can be improved by updating 3D attribute information reflecting such evaluation results.

1 is a flowchart of a 3D CAD-based intelligent mold layout design method according to an embodiment of the present invention
2 is a functional block diagram of a 3D CAD-based intelligent mold layout design apparatus according to an embodiment of the present invention.
3 is a main interface screen included in the modeling interface unit according to an embodiment of the present invention
4 is a diagram showing a configuration of a modeling interface unit according to an embodiment of the present invention
5 is a flow chart showing a processing process of a 3D CAD-based intelligent mold layout design method according to an embodiment of the present invention
6 is a diagram showing a layout environment setting process
7 is a diagram showing a product placement process during a product layout creation process
8 is a diagram showing a design information registration process
9 is a diagram showing a core arrangement process
10 is a diagram showing a runner 2D layout process and a runner 3D model generation process
11 is a diagram showing a gate 2D layout process and a gate 3D model generation process
12 is a diagram showing a mill pin modeling process
13 is a diagram showing a cooling modeling process
14 is a diagram showing a mold base modeling process
15 is a diagram showing a part modeling process
16 is a diagram showing a home modeling process
17 is a diagram showing a process of creating a workpiece
18 is a diagram showing a pocket modeling process

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Since the embodiments according to the concept of the present invention can apply various changes and have various forms, specific embodiments will be illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific form of disclosure, and the present invention should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle. Other expressions describing the relationship between components, such as "between" and "just between" or "adjacent to" and "directly adjacent to" should be interpreted as well.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of a set feature, number, step, action, component, part, or combination thereof, but one or more other features or numbers It is to be understood that the possibility of addition or presence of, steps, actions, components, parts, or combinations thereof is not preliminarily excluded.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.

In the embodiment of the present invention, the simultaneous execution of 3D-based 2D layout design and 3D modeling of an injection mold is described as an example, but the present invention can be applied to simultaneous execution of 2D layout design and 3D modeling of various molding molds such as press molding. have.

1 is a flow chart of a 3D CAD-based intelligent mold layout design method according to an embodiment of the present invention.

Referring to FIG. 1, in the method for designing a 3D CAD-based intelligent mold layout according to an embodiment of the present invention, a modeling DB unit includes a part 3D model library in which a number of parts 3D models including 3D property information are registered, and a product to be manufactured. Storing a corresponding product 3D model, 2D layout information, which is information on 2D layout generated when modeling is performed, and 3D model information generated based on the 2D layout information (S10); After the modeling interface unit calls the product 3D model and the part 3D model library, one surface of the selected part 3D model among the plurality of part 3D models is placed on the 2D plane, and the 3D property information Generating a 2D layout on a 2D plane (S20); A process of generating, by the 2D layout engine unit, a 2D mold layout, which is a 2D layout for a mold, using the 2D layout information (S30); And a step of generating a 3D model for the mold by using the 2D mold layout by the 3D modeling engine (S40).

And, if necessary, the 3D CAD-based intelligent mold layout design method according to an embodiment of the present invention comprises the steps of: at least one user terminal, evaluating a 3D model for the mold (S50); And a process (S60) of at least one user terminal accessing the parts 3D model library to update the 3D property information.

Such a 3D CAD-based intelligent mold layout design method according to an embodiment of the present invention may be performed by a 3D CAD-based intelligent mold layout design apparatus, and FIG. 2 shows a 3D CAD-based intelligent mold according to an embodiment of the present invention. A functional block diagram of the layout design device is shown.

2, a 3D CAD-based intelligent mold layout design apparatus 100 according to an embodiment of the present invention includes a modeling DB unit 110, a modeling interface unit 120, a 2D layout engine unit 130, and 3D modeling. It may be configured to include the engine unit 140.

The modeling DB unit 110 is a part 3D model library 111 in which part 3D models including 3D attribute information are registered, a product 3D model 112 corresponding to a product to be manufactured, and is created in the process of performing modeling. It consists of a database that structured and stores 3D model information 114 of a mold for product injection molding generated based on the 2D layout information 113 and the 2D layout information 113.

Parts 3D models including 3D property information registered in the parts 3D model library 111 are runners, gates, mold bases, standard parts, bolts, push pins, cooling, grooves, slides, lifters, eye bolts, user registration parts Save the 3D model of the field.

The runner 3D model is set to have end processing information, and is configured to register and modify information such as placement position, size, and direction on the 3D model plane of the product to be produced through the modeling interface unit 120 As a result, the operator can display the 2D layout of the runner with 3D attribute information on the 3D model plane of the product to be manufactured, so that the 2D layout of the runner in the mold can be designed, and the 2D layout of the designed runner can be displayed. This allows you to create a 3D model of the runner from the mold.

The gate 3D model is registered as 3D model information having a pin shape and a rhombus shape or 3D model information previously designed and registered for the gate, and is placed on the 3D model plane of the product to be manufactured through the modeling interface unit 120 , Size, direction, etc. are set, registered, and modified so that the operator can display the 2D layout of the gate with 3D attribute information on the 3D model plane of the product to be manufactured. It allows you to design a 2D layout of the gate, and creates a 3D model of the gate from the mold through the 2D layout of the designed gate.

The mold base 3D model includes standard type mold base 3D models including manufacturers and product types, and non-standard type mold base 3D models previously designed and stored by an operator and registered as a library.

The standard parts 3D model is a 3-stage plate, accessories, cooling, cooling parts, core parts according to the parts classification of liner, parting plate, sleeve hold plate, and wedge block. , Ejector pin, ejector space, guide pin bush, hot runner, injection group (injection_group), interlock, lifter group (Lifter_Group), standard mechanical system (Mech_standard), moldbase-sidepart (Moldbase_Sidepart), plate-block ( Plate_Block), SEED-part, slide_group, and 3D models for a group of standard parts such as springs are included as a library.

The bolt 3D model includes bolt 3D models classified by shape according to the classification of bolts such as bolts, eye bolts, eye nuts, nuts, screws, set screws (Set_Screw), and shoulder bolts (Shoulder_Bolt) as a library.

The push pin 3D model includes, as a library, 3D models of push pins including ejection pin, straight, or user-registered push pin part 3D information for each type of push pin of a circle, straight line, two-stage, or square.

The cooling 3D model includes, as a library, 3D model generation information for joule cooling, tank cooling, and connection cooling generated at a specific location in the mold.

The groove 3D model includes, as a library, 3D model generation information for cooling, O-ring grooves, and oil grooves generated at a specific location in the mold.

The slide 3D model includes, as a library, 3D models such as slide kites and parts and slide sets classified into slide locks, slide retainers, slide sets, and slide plates.

The lifter 3D model includes 3D models of lifter sets according to classification of lifters as a library.

The user-registered part 3D model includes 3D models of parts previously designed and created by the user as a library.

3 is a main interface screen included in the modeling interface unit according to an embodiment of the present invention, and Fig. 4 is a configuration diagram of a modeling interface unit according to an embodiment of the present invention.

3 and 4, the main interface of the modeling interface unit 120 according to the present invention includes a tab menu window 121 including a layout design (layout design) tab menu, and the tab menu including a layout design ribbon menu. It is possible to perform mold layout design work using a product 3D model based on a ribbon menu window 123 that selectively displays the ribbon menus of each group, a function menu window 127 that displays function menus to perform environment setting, and 3D CAD. So, in connection with the 2D layout engine unit 130 and the 3D dodeling engine unit 140, a work window displaying a pop-up window for displaying a 2D layout and a 3D model for a mold to be designed and inputting properties for control It can be configured to include (128).

The tab menu window 121 includes a groove, assembly, curve, surface, analysis, view, render, tools, application, layout design (layout design). It consists of a tab menu.

Hereinafter, among the menu windows included in the tab menu window 121, the layout design menu related to the layout design of the mold will be described.

The layout design ribbon menu displayed by selection of the layout design tab menu includes a 2D layout ribbon menu panel 124 including 2D layout ribbon menus, a 3D modeling ribbon menu panel 125 including 3D modeling ribbon menus, and utilities. It is configured to include a ribbon menu window 127 that displays ribbon menus of tab menus including a layout design window provided with a utility ribbon menu panel 126 including ribbon menus.

The 2D layout ribbon menu panel 124 includes product arrangement for 2D layout, design information registration, core arrangement, runner, gate, mold base, standard parts, bolt, push pin, cooling, groove, slide, lifter, registration of user parts, Contains 2D layout ribbons containing symbols.

The 3D modeling ribbon menu panel 125 includes 3D modeling ribbon menus including work piece, runner, gate, mold base, standard parts, bolt, push pin, cooling, groove, slide, eye bolt tab management for 3D modeling. do.

The utility ribbon menu panel 126 includes utility ribbon menus including layout manager, part movement and rotation, multiple copying, automatic pocket, pocket drill, gas band core, core flange, engraving, assembly drawing, and environment setting.

In addition, the modeling interface unit 120 is a layout design environment setting interface for designing a mold 2D layout and generating a 3D model corresponding to the ribbon menus, a product layout interface, a core modeling interface, a millpin modeling interface, a cooling modeling interface, and a mold. It may be configured to further include one or more of a base modeling interface, a parts modeling interface, a home modeling interface, a workpiece modeling interface, a pocket modeling interface, and a layout management interface.

Interfaces included in the above-described modeling interface unit 120 will be described in detail in the following description of '3D CAD-based intelligent mold layout design method'.

The modeling interface unit 120 having the above-described configuration is a layout design environment setting, product layout, core modeling, millpin modeling, cooling modeling, mold base modeling, and parts that simultaneously perform 2D layout and 3D model generation for each component or assembly. By performing modeling including one or more of modeling, home modeling, workpiece creation (workpiece modeling), or pocket modeling, it is possible to design a 2D layout of an injection mold for product injection molding and create a 3D model. Make it possible.

That is, the present invention allows the mill pin modeling, cooling modeling, mold base modeling, part modeling, home modeling, work piece generation (workpiece modeling), or pocket modeling to be selectively performed regardless of the order.

5 is a flowchart illustrating a process of a method for designing a 3D CAD-based intelligent mold layout according to an embodiment of the present invention.

As shown in Figure 5, the 3D CAD-based intelligent mold layout design method according to an embodiment of the present invention includes a layout design environment setting (S100), a product layout generation process (S200), and a core modeling process (S300). After that, the mill pin modeling process (S400), the cooling modeling process (S500), the mold base modeling process (S600), the parts modeling process (S700), the home modeling process (S800), the workpiece creation process (S900) or the pocket It may be configured including one or more of the modeling process S1000.

6 is a diagram illustrating a layout environment setting process (S100). As shown in FIG. 6, in the layout environment setting process (S100), an environment including a layer, a category, and a color for layout design is set.

In the layout environment setting process (S100), the upper core, lower core, workpiece, runner, gate, mold base (upper, lower), standard parts (upper, lower), bolt (upper, lower), push pin, cooling (upper) , Lower) Receives layer, category, and color setting information for parts such as slides and lifters from the operator through the layout design environment setting interface, and sets the environment for mold 2D layout design.

The product layout generation process (S200) includes a product placement process (S210) and a design information registration process (S220), as shown in FIG. 5.

7 is a diagram showing a product placement process (S210) of the product layout generation process (S200).

As shown in FIG. 7, in the product placement process (S210), for a mold 2D layout design for a product 3D model to be molded, the Z axis by setting a coordinate system such as WCS, changing a rotation axis, and setting a rotation axis by selecting a reference data curve. The product 3D modeling is generated by receiving information such as setting from the operator through the product placement interface among the product layout interfaces, and then, the plane of the product 3D model for performing 2D layout design is set. In the case of FIG. 6, it is shown that the product 3D model is placed in the center of the body for the 2D layout of the mold for product injection molding.

8 is a diagram showing a design information registration process (S220).

As shown in FIG. 8, in the design information registration process (S220), after selecting a product 3D model according to the operator's input command through the design information registration pop-up window output from the design information registration interface included in the product layout interface, the slider, lifter, and gate , Performs a process of registering undercuts. In the case of FIG. 6, an interface screen for registering undercut, slider, lifter, gate, and undercut is also shown.

Specifically, in the process of registering an undercut, when an operator selects an automatic inspection button, the modeling interface unit 120 automatically searches for an undercut on the product 3D model and registers it as an undercut. In the registration process of the slider, design information of the sliders is registered by repeating designating the operation direction and surface according to an operator's command. Even if there is a lifter, register the lifter according to the operator's input command. In the gate registration process, the gate is registered by selecting a position on the product 3D model using the operator's point button, setting XY coordinates, axial symmetry or rotational copying.

5, the core modeling process (S300) includes a core placement process (S310), a runner 2D layout process (S320), a runner 3D model generation process (S330), a gate 2D layout process (S340), and a gate 3D model generation. It includes a process (S350).

Among the core modeling (S300), FIG. 9 is a core arrangement process (S310), FIG. 10 is a diagram showing a runner 2D layout process (S320) and a runner 3D model generation process (S330), and FIG. 11 is a gate 2D layout process (S340). ) And the gate 3D model generation process (S350).

As shown in FIG. 9, in the core arrangement process (S310), when a product is selected by an operator and a core size is input, the size of the core is determined. In this case, in the case of the length method, if the core size is specified according to the input values of X, Y, and Z values, the dimensions of the core are displayed on the screen. At this time, for the Z-axis, when the operator rotates the product 3D model in the Z-axis direction and inputs a value, the corresponding value is input and the size of the Z-axis is set. Thereby, after the definition of one cavity for the core is completed, multiple cavities are set to copy and place the copies generated by multiple cavities. 9, a cavity is arranged as a multiple cavity having two cavities. At this time, when the 2D generation button is input, the 2D layout engine unit 130 generates a 2D layout for the core cavity on the plane set for mold layout design, and when the 3D generation button is input, the 3D modeling engine unit ( 140) generates a 3D model using the 3D property information set in the interface screen for the core layout.

As described above, after the 2D layout and 3D model of the core cavity are generated, 2D layout design and 3D modeling for the runner may be performed. As shown in Fig. 8, for runner 2D layout design, a pop-up window for runner creation is displayed by the 2D runner ribbon menu, and F runner 2D layout is performed by allowing runners to be created, edited, mirrored, and deleted. do. In creation, it is possible to input 3D attribute information such as end processing of the runner, shape, thickness, position of the runner using a pointer, setting in one direction or in both directions, length, thickness, angle, position, and sub length.

When input as described above, as shown in the center drawing of FIG. 10 in the 2D layout forming core area, the 2D layout of the runners is displayed, and when the 2D generation button is pressed, the 2D layout of the runner is generated by the 2D layout engine 130 do. After that, 3D modeling of the runner is created by selecting the 3D runner creation ribbon menu. In this case, the center line selection, type selection, and projection target surface can be selected, and the type, selection, and projection target surface are input and selected, and then 3D When the create button is pressed, the 3D modeling engine unit 140 generates a 3D model for the runner as shown in the third drawing of FIG. 10 by using the 3D attribute information of the runner.

Separately, 2D layout and 3D modeling of the gate are performed by the gate 2D layout process (S340) and the gate 3D model generation process (S350) after the above-described arrangement of the core is completed.

When the gate 2D button is selected from the ribbon menu of the modeling interface 120, an interface screen for the gate 2D layout is displayed as shown in FIG. 11. Thereafter, a 2D screen for the gate is generated by selecting a gate shape for each gate in the gate layout popup window and receiving size information such as width and angle. Thereafter, the angle, length, and the like of the gate generated through the edit mode may be modified. In this case, it may be designed using gate information registered in the design information. This process is the same for pinpoint gates. Thereafter, when the 2D generation button is selected, a 2D layout for the gate is generated by the 2D layout engine 130.

Thereafter, when the 3D gate button is selected in the ribbon menu, the addition, size, height, length, angle, etc. of the gates generated by the 2D layout are adjusted and corrected. After that, since the height of the upper end of the gate must be higher than that of the pocket, the thickness is adjusted so that the gate protrudes out of the core. Thereafter, when a gate is selected using the pocket function and a target body is designated, a 3D model of the gate and pocket is completed, and when the 3D button generation is selected, a 3D model of the gate and pocket is created as shown in the lower drawing of FIG. do.

The same applies to pinpoint gates.

2D layout and 3D modeling of the core are performed by the above-described processing.

12 is a diagram illustrating a mill pin modeling process (S400).

Next, the mill pin modeling process (S400) may be performed. The milfin modeling process (S400) includes a milfin 2D layout process (S410) and a milfin 3D model generation process (S420), as shown in FIG. 5.

First, when the Milpin 2D ribbon menu is selected, as shown in FIG. 12, the Milpin 2D layout pop-up window for the Milpin 2D layout is displayed, so that the Milpin 2D layout can be performed. Through the push pin 2D layout pop-up window, the operator can input the cross-sectional shape, diameter, and snap presence of the push pin, and if you select the push pin position through the point, a 2D push pin is created, and the position of the point (mouse) is the coordinate of the push pin. The value is displayed so that you can check it. As described above, after the 2D pushpins are generated, they can be additionally generated by copying them to other cavities. Thereafter, when the 2D layout generation button is pressed, the 2D layout engine 130 generates a 2D layout of the millpin having 3D attribute information.

After the millpin 2D layout is created, the type, shape, core selection and parting surface selection, diameter, and base plate distance are displayed in the millpin 3D modeling pop-up window displayed by selecting the 3D millpin ribbon menu, as shown in the lower part of FIG. 12. , Grid, extra length, sliding part length, mill pin length, fixed number, position, etc., 3D attribute information of mill pin is input. At this time, 3D models of Milpin registered in the parts library are selected for the shape. Thereafter, when the 3D conversion button is pressed, the 3D modeling engine 140 generates a 3D model of the millpin.

Next, a cooling modeling process (S500) may be performed.

13 is a diagram illustrating a cooling modeling process (S500).

As shown in FIG. 13, the cooling modeling process (S500) includes a cooling 2D layout process (S510) and a cooling 3D model generation process (S520).

The cooling 2D layout process (S510) is executed by selection of the cooling 2D ribbon menu, and attribute information can be entered through a cooling pop-up window that allows entry of attribute information for cooling. Joule cooling and tank cooling can be modeled through the cooling pop-up window.

In the case of row cooling as shown in the upper drawing of FIG. 13, attribute information can be input by selecting a diameter, a location, a grid user location, and a shape. After that, the row cooling 2D is generated by selecting the cooling start and boundary position using the insert button. In addition, after Joule cooling is generated, the connection cooling is set so that it can be generated. The generated cooling 2Ds can be copied and pasted. Tank cooling can also be set up in the same way. After the above-described cooling 2D is generated, when the 2D generation button is pressed, the cooling 2D layout is generated by the 2D layout engine 130.

Next, when the 3D cooling ribbon menu is selected, a pop-up window for inputting 3D cooling properties is displayed, and modeling for 3D cooling is performed. At this time, it can also be generated by dividing the Joule cooling tank cooling. In the case of row cooling, when the core is selected, the parting surface is selected, and the end of the row cooling, diameter, Z coordinate, connection cooling, etc. can be entered. Thereafter, when 2D Joule cooling is selected, each 3D cooling is generated at a corresponding position in the mold model. Next, if you click the 3D model creation button after modifying the size or diameter of the generated 3D cooling in the list, a 3D model of cooling is created.

14 is a diagram illustrating a mold base modeling process (S600).

As shown in FIG. 5, the mold base modeling process (S600) includes a mold base 2D layout process (S610) and a mold base 3D model generation process (S620).

When the mold base 2D ribbon menu is selected, the mold base 2D layout process (S610) is performed by outputting a mold base pop-up window as shown in the upper drawing of FIG. 14 on the screen on which the product mold plane modeling is output. In the mold base pop-up window, it is possible to select 2D of the mold base 3D model registered in the manufacturer (MAKER), type (type), and part 3D model library (111), and when the standard standard is selected, the mold base is displayed as a preview. At this time, the size of the mold base, the upper disk, the lower disk, the height of the space block, the support pin, the guide pin, the guide specification, the push pin specification, the presence or absence of the stop pin, the fixed axis, the movable axis, the dimension line view, the mold base rotation, the weight, Z When the position, etc. is input, the construction of the mold base is finished. After that, when the 2D generation button is pressed, the mold base 2D layout is created.

Next, when the mold base 3D rebo menu is selected, a pop-up window for mold base 3D modeling is displayed as shown in the lower drawing of FIG. 12. In this case, the preview window of the pop-up window includes attribute information set in the mold base 2D layout, so no separate setting is required. When the 3D model generation button is pressed immediately, the mold base 3D model is generated by the 3D modeling engine 140.

15 is a view showing a component modeling process (S700).

The parts modeling process (S700) includes a standard part 2D layout and a standard part 3D model generation process (S710, S720), and the eye bolt tap management process as shown from the upper drawing row to the lower drawing row in FIGS. 3 and 13. S730), bolt 2D layout and bolt 3D model generation process (S740, S750), slide 2D layout and slide 3D model generation process (S760, S770), lifter 2D layout and lift 3D model generation process (S780, S790). I can.

In the standard parts 2D layout process (S710), through the standard parts 2D pop-up window, which is output by selecting the standard parts 2D ribbon menu, selects part classification, classification by shape, inputs reference variable values, and inserts the top and bottom positions, reverse, and grid. , Plan view, translation and copying, axis movement and copying, rotational movement and copying information are input, and origin is specified. In this case, 2D of parts registered in the 3D parts library may be selected by searching for parts. At this time, movement and copying are applied after creating the standard part 2D. In the case of Fig. 13, the standard parts are those selected as liners.

Thereafter, the standard part 3 model generation process (S720) is performed by selecting the standard part 3D ribbon menu. At this time, the selected parts include attribute information generated in the 2D layout. After that, the location and size can be changed by setting the variables. In the case of FIG. 13, it is shown that 3D of the standard part of the support filler is generated at the lower end of the mold base. Thereafter, when the 3D generation button is pressed, a 3D model of the standard part configured inside the mold for product injection molding is generated.

The eyebolt tab management process (S730) is performed by outputting an eyebolt management pop-up window when the eyebolt and management 3D ribbon menu is selected from the 3D ribbon menu. When the eyebolt pop-up window is executed, the plates are displayed on the lease, and the weight, KS standard, total mold weight, and weight of the plate can be checked, and the size of the eyebolt can be selected. At this time, the eyebolts can select those registered in the 3D parts library. Thereafter, when the generation directions are checked, they are generated according to the direction in the corresponding plate, and then, they can be moved to the center of gravity and modified. Thereafter, when the 3D model generation button is pressed, the 3D modeling engine unit 140 generates 3D models of the eyebolts in the mold 3D model.

Next, the bolt 2D layout process (S740) is executed while the bolt 2D layout pop-up window is displayed when the bolt 2D ribbon menu is selected. When parts classification, classification by shape, reference variable values, parts data, insertion position, grid, plan view, parallel or axis movement or copy, rotation movement copy, etc. are input through the pop-up window, the 2D of the selected bolt is created. At this time, the bolt is registered in the 3D parts library such as hexagon, eye, countersunk head, shoulder bolt. Thereafter, when the 2D generation button is pressed, a 2D bolt layout is created. On the screen, you can check the bolt installation status in 3D by rotating the screen. Additional functions of multiple bolts can be performed.

The bolt 3D model creation process (S750) is executed while the bolt 3D model pop-up window is displayed when the bolt 3D ribbon menu is selected. At this time, it is possible to hide the unnecessary layout through the layout manager before the execution of the Vault 3D layout function. A list of 2D bolt parts is displayed through the bolt 3D layout pop-up window so that you can select it, and after making the selection, when the 3D creation button is pressed, a screen for setting setting is displayed, and the location is specified by surface setting or user input. 3D part model is created when setting the height such as, user-specified location, bolt insertion direction, and plate height through bolt image.

The slide 2D layout process S760 may be performed by outputting a pop-up window for selecting a slider and inputting properties by selecting a slide 2D ribbon menu.

At this time, 2D images of slide 3D parts libraries including various related parts, slide sets, etc. are output and selected through the search of the slide in the pop-up window.

When a slide is selected, it is performed by both automatic and manual insertion methods. Automatic insertion is performed when slide model information of a product model is registered in advance. After being inserted, slide 2D is created by allowing correction and input of reference variable values such as the size, width, angle, and position of the slide. After that, the entire arrangement of the slide is completed by performing rotational copying on the other side. On the other hand, if it is not registered in the product model, it can be inserted by manual mode. The slide 2D created in this way can be viewed in 2D according to the direction of the front and side of the mold model. Thereafter, multiple slide 2Ds can be created by copying and pasting, modifying the size of the reference variable value list, and the like.

In the slide 3D model generation process (S770), a slide can be selected from 2D slide lists displayed in a slide 3D pop-up window outputted by selecting a slide 3D model ribbon menu. After the slide is selected, 3D creation is performed after rotating the screen of the mold 3D model in the desired direction to view. A 3D model of the slide is created. In this process, it is possible to modify the part and size of the slide by setting the parameters.

The lifter 2D layout process (S780) is executed using the lifter 2D pop-up window that is output by selecting the lifter 2D ribbon menu. Lifter 2D with 3D property information is displayed as shown in the drawing in column 5 of FIG. 13 by selecting a part classification through the lifter 2D pop-up window, selecting a 2D image of the lifter by searching for a lifter, and inputting reference variable values. Is created. Thereafter, when the 2D creation button is pressed, a slide 2D layout is created.

In the lifter 3D model creation process (S790), the lifter can be selected from 2D lifter lists displayed in the lifter 3D pop-up window outputted by selecting the lifter 3D model ribbon menu. After the lifter is selected, 3D creation is performed after rotating the screen of the mold 3D model in the desired direction to view. A 3D model of the lifter is created. At this time, in this process, it is possible to modify the part and size of the lifter by setting a variable. At this time, 3D models of pocket bodies are also created at the same time.

Next, a home modeling process (S800) may be performed.

16 is a diagram illustrating a home modeling process (S800).

5 and 16, the home modeling process (S800) includes a home 2D layout process (S810) and a home 3D modeling process (S830).

First, the home 2D layout process (S810) is performed through the home 2D pop-up window that is output by selecting the home 2D ribbon menu. Allows cooling, O-ring and oil grooves to be formed in the groove 2D pop-up window.

In the case of forming the cooling groove, the cooling groove and the O-ring groove are formed as lines by inputting information on the groove thickness, connection radius, O-ring groove thickness, and distance to the groove, and pointing to the line creation position. Tank cooling can also be arranged on the cooling line by a point method. 2D oil ring is created by inputting the groove thickness and the connection radius for the oil groove, selecting the plane where the oil groove is to be created, and forming the oil groove by pointing. Thereafter, when the 2D generation button is selected, a 2D layout of the groove is generated.

The home 3D modeling process (S830) may be performed through a home 3D pop-up window outputted by selecting a home 3D ribbon menu. After designating the closed curve of the groove through the output pop-up window, when the groove plane, depth, radius, etc. are input, a 3D groove is formed on the designated plane. O-rings, oil grooves, etc. may be formed in the same manner.

Next, the work piece creation process (S900) may be performed.

17 is a diagram showing a work piece creation process (S900).

The work piece creation process (S900) may be performed through a work piece pop-up window that is output when a work piece ribbon menu is selected from the 3D model ribbon menu. The work piece forms a 2D core in a 3D shape, and a 3D-shaped core block is formed by inputting a user margin value and a work piece dimension, and the formed core block is also used for a core pocket.

Next, a pocket modeling process (S1000) may be performed.

18 is a diagram illustrating a pocket modeling process (S1000).

The pocket modeling process (S1000) includes a pocket creation process (S1010) and a pocket drilling process (S1020) as shown in FIGS. 5 and 18.

Even in the pocket modeling process (S1000) described above, unnecessary layers may be hidden by the layout management process (S110).

The pocket creation process (S1010) is generated by automatic pocket generation or manual pocket creation in the pocket pop-up window that is output when the pocket ribbon menu is selected. When a target body is selected in the pocket pop-up window and a part is designated as a tool body, the pocket is performed using the pocket body.

In the case of the core, when the workpiece is marked and the target body is selected and the workpiece is checked with the tool body, a core pocket is created on the upper disc and lower disc.

Also, if you select standard parts and then select standard parts from the tool, a pocket is performed on the body.

Other standard parts, such as plates, and cooling, etc., can also create 3D pockets for all standard parts in the same way.

In the pocket drilling process (S1020), when the type of pocket drill is selected in the pocket drill pop-up window, the separation distance is set, and the target edge is automatically inspected and the floor surface is selected, vertical 3D pocket drills are automatically selected when vertical edges are selected. Is created with In this case, even in the case of a pocket drilling operation having a gradient, a pocket drill is generated by selecting the pocket diameter, the bottom surface, and the edge on the side where the pockets are created. Thereafter, when the 3D generation button is pressed, 3D pocket modeling is performed.

In the layout management process (S1100), when layers included in a 3D model including a 2D layout can be hidden or deleted, or additionally managed, a process is performed to improve visibility of the work.

According to the above-described configuration, the present invention enables 2D layout and 3D modeling for manufacturing an injection molding mold to be simultaneously performed on a 3D CAD basis. In addition, by this, changes between the 2D layout and 3D modeling of the mold are automatically reflected, so that the mold layout design and 3D modeling of the injection molding mold can be remarkably easily performed.

In addition, the present invention can be applied not only to injection molding molds but also to various molding molds such as press molds.

In addition, the mold layout designing apparatus 100 and the mold layout designing method of the present invention may be prepared as a set of codes that are read and executed by a computer, and a recording medium in which the codes are recorded.

In addition, the design device for performing the 3D CAD-based intelligent mold layout design method according to the present invention may include a CPU, a GPU, and a DRAM. In the case of the GPU, the calculation speed is high, but the memory is limited. In this case, there is a disadvantage that the computation speed is slow compared to the GPU. At this time, the GPU itself is configured to include the graphics card memory.

In the present invention, in order to further improve modeling performance, the mold layout design apparatus may be implemented to enable heterogeneous calculations of CPU and GPU.

For example, the 3D CAD-based intelligent mold layout design method according to the present invention according to an embodiment of the present invention may perform a heterogeneous data exchange process to exchange data between the CPU and GPU in order to use the CPU and the GPU at the same time.

This heterogeneous data exchange process can be performed within the process of generating a 3D model.

In the heterogeneous data exchange process, the verification result values of each of the CPU and GPU are transmitted to the DRAM or graphics card memory using a predetermined function (eg, cudaMemcpy() function).

In the case of the CPU, DRAM is used to allocate FDTD and process data, and the GPU uses its own internal graphics card memory. In the process of exchanging heterogeneous data, the verification result value of the CPU is transmitted to the graphics card memory using a predetermined function. Then, the verification result value of the GPU is transmitted to the DRAM using a predetermined function.

In the present invention, modeling is performed using a CPU and a GPU simultaneously through such a process of exchanging heterogeneous data, so that a larger amount of modeling can be performed in less time than when only the CPU and only the GPU are used.

Although the technical idea of the present invention described above has been specifically described in the preferred embodiment, it should be noted that the above-described embodiment is for the purpose of explanation and not for the limitation thereof. In addition, those of ordinary skill in the technical field of the present invention will be able to understand that various embodiments are possible within the scope of the technical idea of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: 3D CAD based intelligent mold layout design device
120: modeling interface unit
121: tab menu window
123: Ribbon menu window
124: Ribbon menu panel
125: 3D modeling ribbon menu panel
126: utility ribbon menu panel
127: Function menu window
130: 2D layout engine unit
140: 3D modeling engine unit

Claims (11)

The modeling DB unit includes a part 3D model library in which a number of parts 3D models including 3D property information are registered, product 3D models corresponding to products to be manufactured, 2D layout information, which is information on 2D layouts generated when modeling is performed, Storing 3D model information generated based on the 2D layout information;
After the modeling interface unit calls the product 3D model and the part 3D model library, one surface of the selected part 3D model among the plurality of part 3D models is placed on the 2D plane, and the 3D property information Creating a 2D layout on a 2D plane that is one surface of the selected part 3D model;
Generating, by a 2D layout engine unit, a 2D mold layout, which is a 2D layout for a mold, using the 2D layout information; And
3D CAD-based intelligent mold layout design method comprising a; 3D modeling engine generating a 3D model for the mold by using the 2D mold layout.
The method of claim 1,
At least one user terminal, evaluating a 3D model of the mold; And
At least one user terminal, accessing the parts 3D model library to update the 3D property information; 3D CAD-based intelligent mold layout design method further comprising.
The method of claim 1,
A layout design environment setting process of allowing the modeling interface unit to set a layout design environment; And
3D CAD-based intelligent mold layout design method further comprising; the process of generating a product layout that allows the modeling interface unit to arrange a 3D model of the product and register 2D layout design information of the product based on the 3D CAD.
The method of claim 3,
The modeling interface unit arranges a core for manufacturing the product 3D model, and includes 2D arrangement information and size and shape information of a surface corresponding to the core viewing surface of the 3D model of the runner and the gate on the surface of the arranged core. After receiving the attribute information, the 2D layout engine creates a 2D layout of the runner and the gate using the attribute information of the runner and the gate, and the 3D modeling engine creates a 3D model of the runner and the gate using the 2D layout of the runner and gate. The process of creating a; 3D CAD-based intelligent mold layout design method further comprising.
The method of claim 3,
The Milpin modeling interface receives the 2D layout information of the surface corresponding to the core viewing surface of the 3D model of the Milpin and the property information including size and shape information on the surface of the placed core, and uses the property information of the Milpin to 2D A 3D CAD-based intelligent mold layout design method further comprising; a process in which the layout engine generates a 2D layout of the millpin, and the 3D modeling engine generates a 3D model of the millpin using the 2D layout of the generated millpin.
The method of claim 3,
The cooling modeling interface receives attribute information including 2D arrangement information of cooling and size and shape information through the surface of the arranged core, and the 2D layout engine generates a 2D layout of cooling using the cooling attribute information, 3D CAD-based intelligent mold layout design method further comprising a process of generating a 3D model of cooling by the 3D modeling engine using the generated 2D layout of cooling.
The method of claim 3,
The moldbase modeling interface receives attribute information including 2D arrangement information and size and shape information of the moldbase through the surface of the arranged core, and the 2D layout engine uses the moldbase attribute information to perform the 2D layout of the moldbase. 3D CAD-based intelligent mold layout design method further comprising; and a process of generating a 3D model of the mold base by the 3D modeling engine using the 2D layout of the generated mold base.
The method of claim 3,
The parts modeling interface receives 2D arrangement information of parts including one or more of standard parts, bolts, slides, and lifters through the surface of the arranged core, and attribute information including size and shape information, and attribute information of parts 3D CAD-based intelligent mold layout design method further comprising: a process in which the 2D layout engine generates a 2D layout of the parts using and the 3D modeling engine creates a 3D model of the parts using the 2D layout of the generated parts.
The method of claim 3,
The home modeling interface receives attribute information including 2D arrangement information and size and shape information of the groove through the surface of the arranged core, and the 2D layout engine generates a 2D layout of the groove using the attribute information of the groove. , 3D CAD-based intelligent mold layout design method further comprising a; 3D modeling engine generating a 3D model of the groove using the 2D layout of the generated groove.
The method of claim 3,
3D CAD-based intelligent mold layout design method further comprising; the process of generating a workpiece including the surface of the arranged core by the workpiece modeling interface.
The method of claim 3,
The pocket modeling interface receives 2D layout information of the pocket and attribute information including size, shape, and drill information through the surface of the arranged core, and the 2D layout engine performs the 2D layout of the pocket using the pocket attribute information. The 3D CAD-based intelligent mold layout design method further comprising a process of generating and performing 2D layout and drill information of the generated groove to generate a 3D model of the pocket by the 3D modeling engine performing pocket drilling.

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