A semi-automatic design method for pinholes embedded in die casting molds

Abstract

The present invention discloses a semi-automatic design method for pinholes in a die-casting mold, which includes taking the pin diameter extracted from the shape of the die-casting product as the design basis, automatically and batch-adjusting the extracted pin diameter according to the pin design standard through a written software program, and then automatically batch-importing the pin basic model according to the adjusted pin diameter, and automatically batch-opening the model on the object part model, and outputting the pin-related design information. Through the above manner, the present invention provides a semi-automatic design method for pinholes in a die-casting mold. Based on the existing CATIA software, the design method writes the die-casting mold pin design standard into the software program, and combined with the created pin basic model, the semi-automatic design of the die-casting mold pin hole can be completed accurately and efficiently.

Description

Technical Field

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

[0002] Inlay pins are inserted into the mold core to vent or make the mold core better processed, extend the service life of the mold and reduce costs. Inlay pins can be divided into flat inlay pins, straight inlay pins, stepped inlay pins, etc. according to their shapes. Inlay pins are generally made of mold steel such as SKD61 or SKH51.

[0003] In the existing mold design using software, the parts library cannot meet the needs of die-casting mold pin design. The existing functions cannot realize the batch import of all pin models into the design assembly, cannot batch distinguish the differences between part models, and cannot batch automatically open model holes for the set die-casting mold pin holes, let alone batch export of the set die-casting mold cooling model and related information of the pin holes. Summary of the invention

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

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: a semi-automatic design method for pin holes in a die-casting mold, including taking the pin diameter extracted from the shape of the die-casting product as the design basis, automatically and batch-adjusting the extracted pin diameter according to the pin design standard through a written software program, and then automatically batch-importing the pin basic model according to the adjusted pin diameter, and automatically batch-opening the model on the object part model, and outputting the pin-related design information.

[0006] In a preferred embodiment of the present invention, the software program is CATIA.

[0007] In a preferred embodiment of the present invention, the specific steps include:

[0008] 1) Model establishment: Establish the basic model of the needle inlay in the software program, and write the needle inlay design standards and size requirements;

[0009] 2) Diameter adjustment: according to the pin design standard written in the program described in step 1), the pin diameter directly extracted from the die-casting mold product shape is automatically adjusted in batches;

[0010] 3) Automatic diameter import: the diameter of the insert pin automatically adjusted in step 2) is imported into the die-casting mold assembly in the software at one time, and the upper and lower layers are linked;

[0011] 4) Automatic diameter comparison: automatically identify the pin model in the die-casting mold assembly imported in step 3), the pin model includes a pin and a pin hole, and determine whether there are pin models with different pin head shapes and the same diameter size among the pins, and at the same time determine whether there are pins with a diameter difference of less than 0.2 mm among the pins;

[0012] 5) Automatic hole opening: batch open the pin holes set in step 3) on the target part model;

[0013] 6) Data output: The needle-related information set in step 3) is output in a table form with one click.

[0014] In a preferred embodiment of the present invention, the automatic adjustment method in step 2) is to round up the input diameter to one decimal place according to the needle design standard.

[0015] In a preferred embodiment of the present invention, the upper and lower layer linking relationship in step 3) is such that when the diameter of the insert pin changes, other parameters related to the diameter of the insert pin will also change accordingly.

[0016] In a preferred embodiment of the present invention, when there are needles with diameter differences of less than 0.2 mm in step 4), the designer uses this as a setting basis to change the needle model.

[0017] In a preferred embodiment of the present invention, the method for changing the pin model is to change the structure of the pin to facilitate identification by on-site personnel.

[0018] In a preferred embodiment of the present invention, in the pin-setting model, when the size of the pin changes, the size of the pin-setting hole will also change accordingly.

[0019] The beneficial effects of the present invention are as follows: the present invention provides a semi-automatic design method for a pin hole in a die-casting mold. Based on the existing CATIA software, the design method writes the die-casting mold pin design standard into the software program, and combines the created pin basic model to accurately and efficiently complete the semi-automatic design of the die-casting mold pin hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a workflow diagram of a semi-automatic design method for embedding pinholes in a die-casting mold. DETAILED DESCRIPTION

[0021] 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.

[0022] according to Figure 1 A semi-automatic design method for pin holes in die-casting molds includes taking the pin diameter extracted from the shape of the die-casting product as the design basis, automatically and batch-adjusting the extracted pin diameter according to the pin design standard through a written software program, and then automatically batch-importing the pin basic model according to the adjusted pin diameter, and automatically batch-opening the model on the object part model, and outputting the pin-related design information, so as to eliminate the existing repetitive work in an automated form, and ensure the accuracy and efficiency of the design of the pin holes in the die-casting mold.

[0023] The software program is CATIA, which is used to perform semi-automatic operations such as die-casting mold pin setting, pin modeling, pin setting adjustment, pin hole creation, and setting data export.

[0024] The specific steps include

[0025] 1) Model establishment: Establish the basic model of the needle inlay in the software program, and write the design standard and size requirements of the needle inlay. Different specifications and parameter sizes can be switched arbitrarily in each basic model of the needle inlay.

[0026] By establishing the pin insertion basic model, the shape of the die-cast product can be identified and the pin insertion model that matches it can be automatically made. The designer does not need to establish the pin insertion model every time. In addition, because the pin insertion basic model is made of external data, the pin insertion basic model can be changed by adding, deleting or changing the data.

[0027] 2) Diameter adjustment: According to the pin design standard written in the program described in step 1), the pin diameter directly extracted from the die-casting mold product shape is automatically adjusted in batches to meet the design requirements of subsequent steps. The automatic adjustment method is to round up the input diameter according to the pin design standard to one decimal place, such as 10.23→10.3; 5.78→5.8

[0028] 3) Automatic diameter import: The pin diameter automatically adjusted in step 2) is imported into the die-casting mold assembly in the software at one time, and the upper and lower layer link relationship is maintained. The upper and lower layer link relationship is that when the pin diameter changes, the other parameters related to the pin diameter will also change accordingly.

[0029] Through the software program with writing function, the basic model of the insert pin that can identify the shape of the die-cast product can be imported into the die-casting mold assembly in batches at one time with reference to the indicated setting position, thereby realizing efficient semi-automatic import operation of the insert pins and related parts, the insert pin holes, etc., which can ensure that the insert pin settings are strictly in accordance with the design standards and improve the efficiency of the insert pin design operation.

[0030] 4) Automatic diameter comparison: automatically identify the pin model in the die-casting mold assembly imported in step 3), wherein the pin model includes a pin and a pin hole. In the pin model, when the size of the pin changes, the size of the pin hole will also change accordingly.

[0031] It is determined whether there are any pin models with different head shapes and the same diameter among the pins, and it is also determined whether there are any pins with a diameter difference of less than 0.2 mm. When there are pins with a diameter difference of less than 0.2 mm, the designer uses this as a setting basis to change the pin model. The method of changing the pin model is to change the structure of the pin to facilitate identification by on-site personnel.

[0032] 5) Automatic hole drilling: The pin holes set in step 3) are drilled in batches on the target part model, achieving automated operation while ensuring accuracy.

[0033] 6) Data output: The information related to the inlay pins set in the step 3) can be output in the form of a table with one click. All the key inlay pin design information such as the position, diameter and length of the inlay pin holes can be output to the specified table and data comparison can be performed. The output table information can not only serve as a basis for the designer's confirmation and adjustment, but the final data can also be used as a part of the drawing, reducing the time for drawing production.

[0034] Compared with the prior art, the present invention provides a semi-automatic design method for a pin hole in a die-casting mold. Based on the existing CATIA software, the design method writes the die-casting mold pin design standards into the software program, and combines the created pin basic model to accurately and efficiently complete the semi-automatic design of the die-casting mold pin hole.

[0035] This method writes the die-casting mold pin design standards into the program. Regardless of the designer's ability, the stability of the design quality can be guaranteed, and a basic pin model can be created to meet the designer's needs for the pin model. There is no need to make additional models every time a design is made. The program's additional writing function is used to make each step in the pin setting operation clear. The program can be executed with one click to eliminate repetitive work content in the pin design, thereby ensuring the efficiency of the pin setting.

[0036] 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.

[0037] 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 inserting pinholes in a die-casting mold, characterized in that: The method includes taking the pin diameter extracted from the die-cast product shape as the design basis, automatically and batch-adjusting the extracted pin diameter according to the pin design standard through the written software program, and then automatically batch-importing the pin basic model according to the adjusted pin diameter, and automatically batch-opening holes on the target part model, and outputting the pin-related design information; The specific steps include: 1) Model building: building the basic model of the needle inlay in the software program, and writing the needle inlay design standards and size requirements; 2) Diameter adjustment: according to the pin design standard written in the program in step 1), the pin diameters directly extracted from the die-casting mold product shape are automatically adjusted in batches, and the automatic adjustment method is to round up the input diameter according to the pin design standard to one decimal place; 3) Automatic diameter import: the diameter of the insert pin automatically adjusted in step 2) is imported into the die-casting mold assembly in the software at one time, and the upper and lower layer link relationship is maintained, and the upper and lower layer link relationship is that when the diameter of the insert pin changes, the other parameters related to the diameter of the insert pin will also change accordingly; 4) Automatic diameter comparison: automatically identify the pin model in the die-casting mold assembly that has been imported in step 3), the pin model includes a pin and a pin hole, and determine whether there are pin models with different pin head shapes and the same diameter size between the pins, and at the same time determine whether there are pins with a diameter difference of less than 0.2 mm between the pins. When there are pins with a diameter difference of less than 0.2 mm, the designer uses this as a setting basis to change the pin model. The method of changing the pin model is to change the structure of the pin to facilitate identification by on-site personnel. In the pin model, when the size of the pin changes, the size of the pin hole will also change accordingly; 5) Automatic hole opening: batch opening the pin holes set in step 3) on the target part model; 6) Data output: The pin-related design information set in step 3) is output in a table form with one click.

2. According to claim 1, a semi-automatic design method for a pinhole embedded in a die-casting mold is characterized in that: The software program is CATIA.

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