A semi-automatic design method for ejector holes in die-casting molds

Abstract

The present invention discloses a semi-automatic design method for ejector holes in a die-casting mold, which includes taking the ejector diameter extracted from the shape of the die-casting product or the ejector diameter created by the designer as the design basis, and automatically importing the extracted or created ejector diameters into the ejector basic model in batches through a written software program, and can switch the ejector style and ejector sleeve setting or not, and after the final setting is completed, automatically batch model holes are opened on the object part model. Through the above method, the present invention provides a semi-automatic design method for ejector holes in a die-casting mold. Based on the existing CATIA software, the design method writes the ejector design standard of the die-casting mold into the software program, and combines the created ejector basic model to accurately and efficiently complete the semi-automatic design of the ejector hole of the die-casting mold.

Description

Technical Field

[0001] The invention relates to the field of mold design, in particular to a semi-automatic design method for an ejector pin hole in a die-casting mold. Background Art

[0002] There are two types of ejector pins: round ejector pins and flat ejector pins. The specific requirements must be formulated according to the structural position of the product. During the die-casting process, when the mold cavity is filled with molten alloy and begins to be demolded, the ejector pin is ejected to the preset position by the mold rear mold push plate. The ejector pin ejects the product to separate it from the mold.

[0003] In the existing mold design using software, the parts library cannot meet the needs of die-casting mold ejector design. The existing functions cannot realize the batch import of all ejector models into the design assembly, cannot batch distinguish the particularity of part models, and cannot batch automatically open the model of the set die-casting mold ejector holes. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a semi-automatic design method for an ejector pin hole in a die-casting mold, which can perform semi-automatic design on the ejector pin hole.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: a semi-automatic design method for ejector holes in a die-casting mold, including taking the ejector diameter extracted or created from the shape of the die-casting product as the design basis, automatically importing the extracted or created ejector diameters into the ejector basic model in batches through a written software program, and being able to switch the ejector style and ejector sleeve settings. After the final setting is completed, the model holes are automatically opened in batches on the target part model.

[0006] In a preferred embodiment of the present invention, the specific steps include:

[0007] 1) Model establishment: Establish the ejector basic model in the software program, and write the ejector design standard and size requirements;

[0008] 2) Automatic diameter import: The ejector basic model in step 1) is imported into the die-casting mold assembly in the software at one time according to the configuration position and diameter of the ejector extracted or created, and the upper and lower layer link relationship is maintained;

[0009] 3) Automatic diameter comparison: automatically identifying the ejector model in the die-casting mold assembly imported in step 2), wherein the ejector model includes an ejector and an ejector hole, and determining whether the ejector head shape is a plane;

[0010] 4) Automatic hole opening: Batch open the ejector holes set in step 3) on the target part model.

[0011] In a preferred embodiment of the present invention, the upper and lower layer linking relationship in step 2) is such that when the ejector pin diameter changes, other parameters related to the ejector pin diameter will also change accordingly.

[0012] In a preferred embodiment of the present invention, in the step 3), when the shape of the ejector head is not a plane, the designer changes the ejector model based on this.

[0013] In a preferred embodiment of the present invention, the method for changing the ejector model is to change the structure of the ejector to facilitate identification by on-site personnel.

[0014] In a preferred embodiment of the present invention, the configuration position of the ejector in step 2) is determined by the product or by human experience.

[0015] The beneficial effects of the present invention are as follows: the present invention provides a semi-automatic design method for an ejector hole in a die-casting mold. The design method, based on the existing CATIA software, writes the ejector design standard of the die-casting mold into the software program, and combines the created ejector basic model to accurately and efficiently complete the semi-automatic design of the ejector hole of the die-casting mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a workflow diagram of a semi-automatic design method for ejector pin holes in die-casting molds. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] according to Figure 1 A semi-automatic design method for ejector holes in a die-casting mold includes taking the ejector diameter extracted from the shape of the die-casting product as the design basis, automatically importing the extracted or created ejector diameters into an ejector basic model in batches through a written software program, and being able to switch the ejector style and ejector sleeve settings. After the final settings are completed, the holes are automatically opened in batches on the target part model.

[0019] In this embodiment, CATIA software is used to perform semi-automatic operations of die-casting mold ejector pin setting, ejector pin modeling, ejector pin setting adjustment, and ejector pin hole making.

[0020] The specific steps include

[0021] 1) Model establishment: Establish the ejector basic model in the software program, and write the ejector design standard and size requirements. Each ejector basic model can realize the arbitrary switching function of different specifications and parameter sizes.

[0022] By establishing the ejector basic model, the shape of the die-cast product can be identified and the ejector model that matches it can be automatically made. The designer does not need to establish the ejector model each time. In addition, because the ejector basic model is made of external data, the ejector basic model can be changed by adding, deleting or changing the data.

[0023] 2) Automatic diameter import: The ejector basic model in step 1) is imported into the die-casting mold assembly in the software at one time according to the configuration position and diameter of the ejector extracted or created, and the upper and lower layer link relationship is maintained. When the ejector diameter changes, the other parameters related to the ejector diameter will also change accordingly.

[0024] The configuration position of the ejector pin can be determined by the product or by human experience.

[0025] The software program with programming can identify the ejector basic model of the shape of the die-cast product, and refer to the indicated setting position to import the ejector basic model into the die-casting mold assembly in batches at one time, thereby realizing the efficient semi-automatic import operation of the ejector and related parts, the ejector hole, etc., which can ensure that the ejector setting is strictly in accordance with the design standard and improve the efficiency of the ejector design operation.

[0026] 3) Automatic diameter comparison: automatically identify the ejector model in the die-casting mold assembly that has been imported in step 2), the ejector model includes an ejector and an ejector hole, and determine whether the ejector head shape is a plane. When the ejector head shape is not a plane, the designer uses this as a setting basis to change the ejector model. The method of changing the ejector model is to change the structure of the ejector to facilitate identification by on-site personnel.

[0027] 4) Automatic hole opening: the ejector holes set in step 3) are opened in batches on the target part model. All the ejector holes set can be automatically opened on one or more target part models, thus achieving automated operation while ensuring accuracy.

[0028] Compared with the prior art, the present invention provides a semi-automatic design method for an ejector hole in a die-casting mold. Based on the existing CATIA software, the design method writes the ejector design standard of the die-casting mold into the software program, and combines the created ejector basic model to accurately and efficiently complete the semi-automatic design of the ejector hole of the die-casting mold.

[0029] This method writes the die-casting mold ejector design standards into the program. Regardless of the designer's ability, the stability of the design quality can be guaranteed, and a basic ejector model can be created to meet the designer's needs for the ejector model. There is no need to make additional models every time a design is made. The program's additional writing function makes each step in the ejector setting operation clear. The program can be executed with one click to eliminate repeated operations in the ejector design, ensuring the efficiency of the ejector setting.

[0030] In the description of the present invention, it should be noted that the components are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional test methods. The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A semi-automatic design method for ejector holes in a die-casting mold, characterized in that: The method includes taking the ejector diameter extracted from the die-cast product shape as the design basis, automatically importing the extracted ejector diameter into the ejector basic model in batches through the written software program, and being able to switch the ejector style and ejector sleeve setting. After the final setting is completed, the target part model is automatically batch-opened. The specific steps include: 1) Model building: building the ejector basic model in the software program, and writing the ejector design standards and size requirements; 2) Automatic diameter import: the ejector basic model in step 1) is imported into the die-casting mold assembly in the software at one time according to the configuration position and diameter of the ejector extracted or created, and the upper and lower layer link relationship is maintained; 3) Automatic diameter comparison: automatically identifying the ejector model in the die-casting mold assembly that has been imported in step 2), the ejector model includes an ejector and an ejector hole, and determining whether the ejector head shape is a plane. When the ejector head shape is not a plane, the designer uses this as a setting basis to change the ejector model. The method of changing the ejector model is to change the structure of the ejector so that on-site personnel can identify it; 4) Automatic hole opening: Batch opening the ejector holes set in step 3) on the target part model.

2. According to claim 1, a semi-automatic design method for ejector holes in a die-casting mold is characterized in that: The upper and lower layer linking relationship in step 2) is that when the ejector pin diameter changes, other parameters related to the ejector pin diameter will also change accordingly.

3. According to claim 1, a semi-automatic design method for ejector holes in a die-casting mold is characterized in that: The configuration position of the ejector pin in step 2) is determined by the product or by human experience.

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