JP2014073547A - Apparatus, program and method for deciding machining step - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decide a machining step that has high efficiency and stable quality by greatly reducing a human thinking work.SOLUTION: Step mode decision means 23 decides a step mode every shape feature. Cutting mode decision means 24 decides the number of steps every shape feature and a cutting mode of each step according to the number of steps. Tool group decision means 25 decides a tool group for use in each step according to the number of steps every shape feature. Tool operational mode decision means 27 decides a tool operational mode of each step according to the number of steps every shape feature. Machining step output means 28 forms a partial machining step every shape feature, by integrating a step mode and the number of steps every shape feature that are decided by successively going through each means every shape feature, and the cutting mode of each step, the tool group and the tool operational mode according to the number of step, and outputs an integrated machining step when machining a product shape by integrating the partial machining steps to all shape features extracted from shape data.

Description

  The present invention relates to a machining process determination device that performs a machining process determination process for product shape machining in machining. In particular, the present invention mainly relates to the automation of the machining process determination process for product shape machining related to parts and products mainly for single-piece machining such as molds and machine tool parts.

  Conventionally, the machining process determination work is performed by an expert's thinking work, and the number of processes, tools used in each process, and the like are determined as machining process information. Based on these machining process information, a tool movement path (machining path) necessary for machining is calculated using a commercially available CAM system, and is also referred to as machining data (“NC (Numerical Control) data”). "Processing data" was unified.)

Here, the work process determination work has mainly taken the following two forms.
(1) Using a CAM system, a person determines an individual processing site by interactive processing while looking at a drawing, and determines a processing process of the processing site.
(2) The machining process corresponding to the shape feature and the tool used in each process are registered in advance in the CAM system, and when the machining data is generated by the computer, the machining process and the tool used according to the shape feature are allotted individually. Determine the processing steps for shape features.

  Examples of the form (2) include Patent Documents 1 to 4, Non-Patent Documents 1 and 2.

JP 2009-274160 A JP 2005-309713 A Japanese Patent Laid-Open No. 10-230436 Japanese Patent No. 3462669

http://www.machinesol.jp/solution/proglesys1.html (searched on September 28, 2012) Journal of Japan Society for Precision Engineering Vol.73 No.4-5,2007 “Study on process design focusing on the dependence of machining shape characteristics (1st-3rd reports)”

  However, the work process determination work, like the above-described form (1) of the prior art, requires a skill that requires human skill and an error when a person performs the work manually based on the drawings. There was a problem that it took time.

  Also, in the case of the above-described form (2) of the prior art, it is necessary to register in advance a machining process according to the shape feature in the CAM system. The shape features extracted from the product shape data vary greatly depending on the required quality such as accuracy and surface roughness attached to the shape features. In reality, there is a problem that manual reworking frequently occurs with respect to the assigned processing steps.

  In particular, in recent years, pre-processing such as roughing and post-processing such as finishing are performed by another processing machine or setup, i.e., pre-processing such as roughing is performed in advance on a dedicated processing machine for roughing and finishing. The number of cases where post-processing is performed by a processing machine dedicated to finishing different from pre-processing is increasing. For such a case, according to the above-described form (2) of the prior art, it is necessary to register a number of machining process patterns in consideration of pre-processing and post-processing for one shape feature, In addition to requiring a lot of labor for registration, it also takes a lot of labor to create rules for quoting registered processing steps, and the processing for quoting has been complicated.

  The present invention has been made in view of the above-described problems, and its purpose is to significantly reduce human thinking work and to determine a highly efficient and stable quality machining process. It is to provide a machining process determination device and the like.

  According to a first aspect of the invention for achieving the above object, an input means for inputting shape data of a predetermined product shape and a type of a processing machine, and shape characteristics of one or a plurality of processing parts are extracted from the shape data. Based on the shape feature specification generating means for generating the shape feature specification data, the process mode storage means for storing the process mode for each condition, the type of the processing machine and the shape feature specification data , Referring to the process mode storage means, a process mode determination means for determining the process mode for each shape feature, a cutting mode storage means for storing a cutting mode for each condition, and specification data of the shape feature And a cutting mode determination for determining the number of steps for each shape feature and the cutting mode of each step according to the number of steps with reference to the cutting mode storage means based on the step mode. Means, application tool group storage means for storing a tool group applicable to various conditions, based on the feature data of the shape feature and the cutting mode, referring to the application tool group storage means, Tool group determining means for determining a tool group to be used in each step according to the number of steps for each shape feature, tool operation mode storage means for storing a tool operation mode for each condition, and specification data of the shape feature And, based on the cutting mode, referring to the tool operation mode storage unit, a tool operation mode determining unit that determines a tool operation mode of each step according to the number of steps for each of the shape features, and the shape feature various The original generation means, the process mode determination means, the cutting mode determination means, the tool group determination means, and the tool operation mode determination means are continuously provided. For each shape feature, the process mode and the number of steps for each of the shape features determined as a result, and the cutting mode, the tool group, and the tool operation mode of each step according to the number of steps are aggregated. And a machining process output means for outputting the integrated machining process when machining the product shape by integrating the partial machining processes for all the shape features extracted from the shape data. This is a machining process determination device characterized by the above.

  The second aspect of the invention is an input means for inputting specification data of a shape feature extracted from a part to be processed included in a type of a processing machine and a predetermined product shape, and a process mode for storing a process mode for each condition A process mode determining unit that determines the process mode of the shape feature by referring to the process mode storage unit based on the storage unit, the type of the processing machine, and the specification data of the shape feature; Based on the cutting mode storage means for storing the cutting mode, the specification data of the shape feature and the process mode, the cutting mode storage means is referred to and the number of steps of the shape feature and the number of steps are determined. Cutting mode determining means for determining the cutting mode of each process, applied tool group storage means for storing a tool group applicable to various conditions, and specification data of the shape characteristics And a tool group determining unit that determines a tool group to be used in each step according to the number of steps of the shape feature with reference to the applied tool group storage unit based on the cutting mode, and a tool for each condition Each process according to the number of steps of the shape feature with reference to the tool operation mode storage means based on the tool operation mode storage means for storing the operation mode, the specification data of the shape feature and the cutting mode The tool operation mode determining means for determining the tool operation mode, and the process mode determining means, the cutting mode determining means, the tool group determining means, and the tool operation mode determining means, which are determined in succession. The process mode and the number of processes of the shape feature, the cutting mode of each process according to the number of processes, the tool group, and A processing step outputting means for outputting a processing step of the shape features to aggregate serial tool operation mode, a machining process determining system, characterized in that it comprises a.

  The shape feature specification generation means in the first invention may assign the shape feature classification and the required quality class to the shape feature specification data. Further, the shape feature specification generating means in the first invention is a three-dimensional shape of a region to be processed, extracted from the shape of the processing removal unit as a difference between the product shape and the product shape. Features may be extracted as the shape features.

  In the first invention and the second invention, after the tool group is determined by priority tool storage means for storing a tool or a tool type to which priority is given for each tool group, and the tool group determination means, The tool or tool type to be used is determined by referring to the priority tool storage means, determining the tool or tool type to be used from the tools or tool types belonging to the tool group according to the priority order. Priority tool determining means for assigning the above information to the partial machining process, and the machining process output means further includes the information on the tool to be used or the tool type and outputs it as the integrated machining process. You may do it.

  The cutting mode determination means in the first invention and the second invention further determines a machining quality class and a remaining margin for each process, and the tool group determination means further determines the machining quality class based on the machining quality class. The tool group may be determined with reference to the applied tool group storage means.

  According to a third aspect of the present invention, a computer is used to input shape data of a predetermined product shape and a type of a processing machine, extract shape characteristics of one or a plurality of processing parts from the shape data, Shape feature specification generation means for generating original data, process mode storage means for storing process modes for various conditions, the process mode storage means based on the type of the processing machine and the specification data of the shape features Then, based on the process mode determining means for determining the process mode for each shape feature, the cutting mode storage means for storing the cutting mode for each condition, the specification data of the shape feature and the process mode, the cutting mode With reference to the mode storage means, the cutting mode determining means for determining the number of steps for each shape feature and the cutting mode of each step according to the number of steps, for various conditions Based on the applied tool group storage means for storing an applicable tool group, the specification data of the shape feature and the cutting mode, the applied tool group storage means is referred to and the number of steps for each shape feature is determined. Tool operation determining means for determining a tool group to be used in each process, tool operation mode storage means for storing a tool operation mode for each condition, specification data of the shape characteristics, and the cutting operation based on the cutting mode. Referring to a mode storage means, a tool operation mode determination means for determining a tool operation mode of each process according to the number of processes for each shape feature, the shape feature specification generation means, the process mode determination means, the cutting Before being determined by successively passing through the mode determining means, the tool group determining means and the tool operation mode determining means. The step mode and the number of steps for each shape feature, and the cutting mode, the tool group, and the tool operation mode of each step according to the number of steps are aggregated into a partial machining step for each shape feature, and the shape It is a machining process determination program for functioning as a machining process output unit that integrates the partial machining processes for all the shape features extracted from data and outputs an integrated machining process when machining the product shape. .

  4th invention memorize | stores the process mode according to the input means which inputs the specification data of the shape characteristic extracted from the site | part which should be processed included in the classification of a processing machine and the predetermined product shape, and various conditions Based on the process mode storage means, the type of the processing machine and the specification data of the shape feature, referring to the process mode storage means, the process mode determination means for determining the process mode of the shape feature, for each of various conditions Based on the cutting mode storage means for storing the cutting mode, the specification data of the shape feature and the process mode, the number of steps of the shape feature and the number of steps corresponding to the number of steps are referred to the cutting mode storage means. Cutting mode determining means for determining the cutting mode of the process, applied tool group storage means for storing a tool group applicable to various conditions, and specifications of the shape feature Based on the data and the cutting mode, referring to the applied tool group storage means, a tool group determining means for determining a tool group to be used in each process according to the number of processes of the shape feature, and for each condition Each process according to the number of steps of the shape feature with reference to the tool operation mode storage means based on the tool operation mode storage means for storing the tool operation mode, the specification data of the shape feature and the cutting mode The shape determined by successively passing through the tool operation mode determination means for determining the tool operation mode, the process mode determination means, the cutting mode determination means, the tool group determination means, and the tool operation mode determination means The process mode and the number of processes of the feature, and the cutting mode, the tool group and the previous of each process according to the number of processes A machining process determining program for functioning as a processing step outputting means, which aggregates the tool operation mode is output as a processing step of the shape features.

  5th invention is the application which memorize | stores the process mode memory | storage means which memorize | stores the process mode for every various conditions, the cutting mode memory | storage means which memorize | stores the cutting mode for every various conditions, and the tool group applicable with respect to various conditions An input step in which a computer comprising tool group storage means and tool operation mode storage means for storing a tool operation mode for each condition inputs a shape data of a predetermined product shape and a type of a processing machine, and the shape data Based on the shape feature specification generation step for extracting the shape feature of one or a plurality of processing parts from the shape, and generating the specification data of the shape feature, the type of the processing machine and the specification data of the shape feature, Referring to the process mode storage means, a process mode determination step for determining the process mode for each shape feature, specification data of the shape feature, and Based on the process mode, referring to the cutting mode storage means, a cutting mode determining step for determining the number of processes for each shape feature and the cutting mode of each process according to the number of processes, Based on the specification data and the cutting mode, referring to the applied tool group storage means, a tool group determining step for determining a tool group to be used in each process according to the number of processes for each shape feature; A tool operation mode determination step for determining a tool operation mode of each process according to the number of processes for each of the shape characteristics with reference to the tool operation mode storage means based on the specification data of the shape characteristics and the cutting mode And the shape feature specification generation step, the process mode determination step, the cutting mode determination step, the tool group determination step, and The process mode and the number of processes for each of the shape features determined by continuously passing through the tool operation mode determination step, and the cutting mode of each process according to the number of processes, the tool group, and the tool By integrating the operation modes into partial machining steps for each shape feature, and integrating the partial machining steps for all the shape features extracted from the shape data, an integrated machining step when machining the product shape And a machining process output step for outputting the machining process.

  6th invention is the application which memorize | stores the process mode memory | storage means which memorize | stores the process mode for every various conditions, the cutting mode memory | storage means which memorize | stores the cutting mode for every various conditions, and the tool group applicable with respect to various conditions A shape feature extracted by a computer having a tool group storage means and a tool operation mode storage means for storing a tool operation mode for each condition from a type to be machined and a portion to be machined included in a predetermined product shape A process mode for determining the process mode of the shape feature by referring to the process mode storage means based on the input step of inputting the specification data of the machine and the specification data of the type of the processing machine and the shape feature Based on the determining step, the feature data of the shape feature and the process mode, referring to the cutting mode storage means, the number of steps of the shape feature Based on the cutting mode determination step of determining the cutting mode of each step according to the number of steps, the specification data of the shape feature and the cutting mode, the shape feature is referred to A tool group determining step for determining a tool group to be used in each step according to the number of steps, and based on the feature data of the shape feature and the cutting mode, referring to the tool operation mode storage means, A tool operation mode determination step for determining a tool operation mode of each process according to the number of processes of the shape feature, the process mode determination step, the cutting mode determination step, the tool group determination step, and the tool operation mode determination step. The process mode and the number of processes of the shape feature determined by continuously passing, and the previous A machining process output step of performing a machining process output step of collecting the cutting mode, the tool group, and the tool operation mode of each process according to the number of processes and outputting the process as a machining process of the shape feature. Is the method.

  According to the present invention, it is possible to provide a machining process determination device or the like that can significantly reduce human thinking work and can determine a machining process with high efficiency and stable quality.

The figure which shows the hardware structural example of the manufacturing process determination apparatus 1 The figure which shows the software structural example of the manufacturing process determination apparatus 1 in 1st Embodiment. The figure which shows the structural example of the construction method database 30 The figure which shows an example of the basic feature group 31 The figure which shows an example of the specification data 32 of a feature (shape feature) The figure which shows an example of the process mode table 33 The figure which shows an example of the cutting mode table 34 The figure which shows an example of the application tool group table 35 The figure which shows an example of the priority tool table 36 The figure which shows an example of the tool operation mode table 37 The figure which shows an example of the partial process data 38 The figure which shows the software structural example of the manufacturing process determination apparatus 1 in 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Each means included in the processing step determination device 1 of the present invention is realized by installing dedicated software in a general-purpose computer.

First, the main terms are explained. Other terms will be described later as necessary.
The process mode is, for example, pre-processing, post-processing, full processing, etc. The pre-processing is a process that separates roughing and the like and is performed by another processing machine or a set-up, and the post-processing is a finishing process left by the pre-processing. In addition, all the processes are performed in succession without being divided into pre-processing and post-processing.
The cutting mode is, for example, rough cutting, intermediate finishing, finishing, etc., and is the same as a commonly used concept.
The required quality class is, for example, coarse grade, intermediate grade, advanced grade, extreme grade, polished finish, etc., and is an index that comprehensively represents the dimensional accuracy, shape accuracy, and surface roughness required for the product.
-The processing quality class is, for example, rough machining, intermediate machining, advanced machining, super-high machining, grinding machining, etc., and is an index that comprehensively represents the accuracy and surface roughness that should be achieved (or can be achieved) by machining. is there.
The types of processing machines are, for example, roughing machines, finishing machines, all-mode machines, etc., and all-mode machines are machines that can be used in all modes from roughing to finishing.

<First Embodiment>
The machining process determining apparatus 1 according to the first embodiment will be described with reference to FIGS.

  FIG. 1 is a diagram illustrating a hardware configuration example of the machining process determination device 1. The hardware configuration shown in FIG. 1 is an example, and various configurations can be adopted depending on applications and purposes.

  The processing step determination device 1 includes a control unit 11, a storage unit 12, a media input / output unit 13, a communication control unit 14, an input unit 15, a display unit 16, a peripheral device I / F unit 17, etc. connected via a bus 18. Is done.

  The control unit 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.

  The CPU calls and executes a program stored in the storage unit 12, ROM, recording medium or the like to a work memory area on the RAM, drives and controls each device connected via the bus 18, and the machining process determination device 1. The process to be described later is realized. The ROM is a non-volatile memory, and permanently stores a boot program, a program such as BIOS, data, and the like of the machining process determination device 1. The RAM is a volatile memory, and temporarily stores programs, data, and the like loaded from the storage unit 12, ROM, recording medium, and the like, and includes a work area used by the control unit 11 for performing various processes.

  The storage unit 12 is an HDD (hard disk drive) or the like, and stores a program executed by the control unit 11, data necessary for program execution, an OS (operating system), and the like. With regard to the program, a control program corresponding to an OS (operating system) and an application program for causing the machining process determination device 1 to execute processing to be described later are stored. Each of these program codes is read by the control unit 11 as necessary, transferred to the RAM, read by the CPU, and executed as various means.

  The media input / output unit 13 (drive device) inputs / outputs data, for example, media such as a CD drive (-ROM, -R, -RW, etc.), DVD drive (-ROM, -R, -RW, etc.) Has input / output devices. The communication control unit 14 includes a communication control device, a communication port, and the like, and is a communication interface that mediates communication between the machining process determination device 1 and the network, and communicates with other machining process determination devices 1 via the network. Take control. The network may be wired or wireless.

  The input unit 15 inputs data and includes, for example, a keyboard, a pointing device such as a mouse, and an input device such as a numeric keypad. An operation instruction, an operation instruction, data input, and the like can be performed on the machining process determination device 1 via the input unit 15. The display unit 16 includes a display device such as a liquid crystal panel, and a logic circuit or the like (video adapter or the like) for realizing the video function of the processing process determination device 1 in cooperation with the display device. The input unit 15 and the display unit 16 may be integrated like a touch panel display.

  The peripheral device I / F (interface) unit 17 is a port for connecting a peripheral device to the machining process determination device 1, and the machining process determination device 1 transmits data with the peripheral device via the peripheral device I / F unit 17. Send and receive. The peripheral device I / F unit 17 is configured by USB, IEEE 1394, RS-232C, or the like, and usually includes a plurality of peripheral devices I / F. The connection form with the peripheral device may be wired or wireless. The bus 18 is a path that mediates transmission / reception of control signals, data signals, and the like between the devices.

  FIG. 2 is a diagram illustrating a software configuration example of the machining process determination device 1 according to the first embodiment. The machining process determination apparatus 1 according to the first embodiment includes an input unit 21, a shape feature specification generation unit 22, a process mode determination unit 23, a cutting mode determination unit 24, a tool group determination unit 25, a tool operation mode determination unit 27, The processing process output means 28, the construction method database 30, etc. are provided.

  The input means 21 inputs input data 20 including the type of processing machine, product shape data, and the like. The machining process output means 28 outputs integrated machining process data 29. The construction method database 30 includes one or a plurality of tables that define rules for determining a machining process based on feature data. Moreover, the machining process determination apparatus 1 in the first embodiment may include priority tool determination means 26 and the like as necessary.

  In the machining process determination device 1, the dedicated software is installed in a general-purpose computer, so that the media input / output unit 13, the communication control unit 14, the input unit 15, and the peripheral device I / F unit 17 function as the input unit 21. Then, the control unit 11 includes a shape feature specification generation unit 22, a process mode determination unit 23, a cutting mode determination unit 24, a tool group determination unit 25, a priority tool determination unit 26, a tool operation mode determination unit 27, and a machining process output unit. 28, and the storage unit 12 and the external storage device function as the construction method database 30.

  Product shape data generated using a CAD system in product design is input to the machining process determination device 1 via the input means 21 in order to determine a machining process for machining the product shape. The type of the processing machine used for processing the product is also input to the processing step determination device 1 via the input unit 21. Here, the shape data of the product is converted into a predetermined input / output format such as IGES (Initial Graphics Exchange Specification) or STEP (Standard for The Exchange of Product model data), and then the process is determined. It is common. Further, the type of the processing machine is represented by a type classified according to processing accuracy or processing capability unique to the processing machine, such as a roughing machine, a finishing machine, or a full mode machine. The all-mode machine is a machine that can be used in all modes from roughing to finishing.

  The input means 21 for inputting the shape specifications and materials of these materials, and the type of the processing machine, for example, when the user inputs using the input unit 15 such as a mouse or a keyboard, or collectively in a file, There is a case where the input is performed via the media input / output unit 13, the communication control unit 14, the input unit 15, the peripheral device I / F unit 17, or the like. Moreover, it may be stored in the storage unit 12 in advance.

  The inputted shape data of the product is transferred to the shape feature specification generating means 22. The shape feature specification generation unit 22 extracts shape features (hereinafter also referred to as “features”) of one or a plurality of processed parts from the product shape data, and generates specification data for each extracted feature. . The feature mentioned here is one unit that is configured by one or a plurality of surfaces and is recognized as a processing site with a shape feature.

  FIG. 4 shows an example of the specification data of the feature (shape feature). The shape feature specification generation means 22 searches for a basic feature as shown in FIG. 4 defined in advance from the product shape, and recognizes the feature type, shape specification, reference point position, reference axis direction, and the like.

  Further, the shape feature specification generating means 22 recognizes the required surface roughness and the required accuracy (shape accuracy and dimensional accuracy) of each surface constituting the feature, and the feature according to the required surface roughness and the required accuracy. Each required product class is also set. Examples of required quality classes include coarse, intermediate, advanced, extreme, and polished finishes.

  Further, the shape feature specification generating means 22 is a feature that is a classification of whether individual processing is performed by different processing machines or setups, such as roughing and post-processing by finishing, or by a single processing machine or setup. Set the category. This feature classification includes a pre-machined feature, a post-machined feature, and a fully machined feature. Here, when processing of one feature is divided by a processing machine or a setup, the shape feature specification generating means 22 redefines the feature itself as another feature such as a pre-processed feature or a post-processed feature.

  The generated feature data 32 of the feature (shape feature) is transferred to the process mode determining means 23. FIG. 5 shows an example of the feature (shape feature) specification data 32. In addition, as the shape characteristic specification generation means 22, it is also possible to use the function of a normal CAM system, and it is more general. This will be described in the second embodiment.

  Further, the shape feature specification generating unit 22 inputs the shape data of the material together with the shape data of the product, and subtracts the shape data of the product from the shape data of the material, thereby obtaining the shape data of the processing removal unit as the difference between the two. And a three-dimensional feature may be extracted from the shape data of the processing removal unit. In this case, the extracted three-dimensional feature is one solid region recognized as a processing removal unit with a shape feature, and is positioned as a shape feature of the processing removal unit. The three-dimensional feature extracted in this way can be handled in the subsequent processing in the same manner as the feature extracted from the product shape.

  The process mode determination means 23 is a process included in the construction method database 30 (see FIG. 3) based on the feature data 32 of each feature (shape feature) acquired from the shape feature specification generation means 22 and the type of processing machine. With reference to the mode table 33, a process mode for each feature is determined.

  The process mode table 33 stores process modes for various conditions. The process mode is a process classification parameter for responding to process determination taking into account classification such as pre-processing and post-processing, which is one of the factors that have conventionally complicated the process determination work. In other words, it is set to handle cases where roughing and finishing are performed as pre-processing and post-processing with different processing machines and setups. Processes such as pre-processing, post-processing, single tool full machining, multi-tool full machining, etc. The mode is set.

  FIG. 6 shows an example of the process mode table 33. In the process mode table 33, process modes to be applied to machining are set according to parameters such as the type of the machine, feature classification, and required quality class. Parameters according to the actual situation at the site may be added. The determined process mode for each feature is transferred to the cutting mode determination means 24.

  The cutting mode determination unit 24 stores the cutting mode table 34 included in the construction method database 30 (see FIG. 3) based on the process mode for each feature acquired from the process mode determination unit 23 and the feature data 32 of the feature (shape feature). With reference to the number of processes for each feature, the cutting mode of each process according to the number of processes, and the machining quality class and the remaining allowance of each process are determined as necessary.

  The cutting mode table 34 stores cutting modes for various conditions. The number of steps is the number of processing steps indicated by the step number.

  FIG. 7 shows an example of the cutting mode table 34. In the cutting mode table 34, the process number corresponding to the number of processes and the cutting mode of each process are set according to the process mode and the required quality class for each feature, and the machining quality class and the remaining allowance are set as necessary. ing. Here, in the cutting mode, modes such as rough cutting, intermediate finishing, and finishing, which are general machining concepts, are set. Moreover, the actual situation at the processing site can be further reflected by setting the processing quality class and the remaining margin as required. As described above, the machining quality class is an index that comprehensively represents the accuracy and surface roughness that should be achieved (or can be achieved) by machining, and includes rough machining, intermediate machining, advanced machining, super-high machining, and grinding. And so on. You may set hand finishing etc. as needed. The remaining allowance is a remaining allowance from the final product shape in the corresponding cutting mode. The determined cutting mode of each process for each feature is transferred to the tool group determining means 25.

  The tool group determination means 25 is based on the cutting mode or machining quality class of each process for each feature acquired from the cutting mode determination means 24 and the specification data 32 of the feature (shape feature) for each feature (see FIG. 3), the tool group used for machining of each process for each feature is determined.

  The applied tool group table 35 stores tool groups applicable to various conditions. A tool group is a group of tools that perform machining of the same system. A face mill used for machining the bottom surface, a side mill used for machining the side surface, an end mill used for machining the bottom surface and the side surface, and a slot used for machining the groove. An example is a mill.

  FIG. 8 shows an example of the applied tool group table 35. In the applied tool group table 35, tool groups used for machining are set according to the feature type and the cutting mode or the machining quality class. The feature type is the type of the basic feature used in the search at the time of feature extraction, and is set as the feature type in the specification data 32 of the feature (shape feature). As for the cutting mode and the processing quality class, it is preferable to select an appropriate one according to the actual situation of the processing site and use it as a determination parameter for the tool group.

  After the tool group of each process is determined, the priority tool determination means 26 refers to the priority tool table 36 included in the construction method database 30 (see FIG. 3), and according to the priority order among the tools belonging to the tool group. Determine the tool or tool type to use.

  Here, the tool indicates the tool itself to be used, and the tool type indicates the type name of the tool such as a face mill, a shell end mill, or a carbide end mill.

  An example of the priority tool table 36 in which the tool itself to be used is set is shown in FIG. In the priority tool table 36, the tool or tool type belonging to the tool group is set according to the priority order used by the tool group and the machining quality class. Note that the priority tool determination means 26 is not essential, and if it is desired to specify a tool or a tool type as tool information to be used in accordance with the actual situation at the processing site, it is preferable to incorporate it in the processing step determination apparatus 1.

  The tool operation mode determination means 27 refers to the tool operation mode table 37 included in the construction method database 30 (see FIG. 3) based on the feature data 32 of each feature (shape feature) and the cutting mode of each process. The tool operation mode of each process for each feature is determined. The tool operation mode is necessary when generating machining data using a commercially available CAM system after the machining process is determined, and is a mode that defines the operation of the tool when machining a product.

  An example of the tool operation mode table 37 is shown in FIG. In the tool operation mode table 37, a tool operation mode consisting of a machining operation mode and a tool movement mode is set according to the type of feature and the cutting mode. In the example shown in FIG. 9, machining operation modes such as region machining, cavity machining, and contour machining are set as an example of the machining operation mode, and zigzag, along the outer peripheral surface, along the part surface, etc. are set as examples of the tool movement mode. Yes. Further, if necessary, it is also possible to set the raw material material classification such as cast-out and muku as shown in FIG.

  The machining process output means 28 is determined by continuously passing at least the shape feature specification generating means 22, the process mode determining means 23, the cutting mode determining means 24, the tool group determining means 25, and the tool operation mode determining means 27. The process mode and the number of processes for each shape feature, and the cutting mode, tool group, and tool operation mode of each process according to the number of processes are aggregated, and the partial machining process for each feature (shape feature) as shown in FIG. And Further, the machining process output means 28 may call the priority tool determination means 26 after calling the tool group determination means 25 as necessary.

  As described above, the machining process output means 28 includes a process mode for each feature, the number of processes, and a cutting mode of each process corresponding to the number of processes, a tool group, and a tool. Operation modes are collected. Further, information on tools or tool types of each process determined by the priority tool determining means 26 is also added and collected as necessary. Then, the machining process output means 28 integrates the partial machining processes for all the features extracted from the product shape data, and outputs the integrated machining process data 29 when machining the product shape.

  FIG. 3 is a diagram illustrating a configuration example of the construction method database 30. As shown in FIG. 3, the construction method database 30 includes a process mode table 33, a cutting mode table 34, an applied tool group table 35, a tool operation mode table 37, and the like. The construction method database 30 also includes a priority tool table 36 as necessary.

  FIG. 4 is a diagram illustrating an example of the basic feature group 31. Rough types of features (shape features) included in the basic feature group 31 include, for example, a plane, a cylindrical surface, a shoulder surface, a side notch, a corner notch, a groove, a seat, a pocket, a through pocket, and the like.

  Examples of the plane include a rectangular plane, a circular plane, a general plane, a composite plane, and a chamfer. The cylindrical surface includes, for example, a cylindrical side surface. Examples of the shoulder surface include a shoulder and a continuous shoulder.

  Examples of the side notch include a rectangular side notch, a circular side notch, and a U-shaped side notch. Examples of the corner notch include a rectangular corner notch, a circular corner notch, and a U-shaped side notch.

  Examples of the groove include a rectangular groove, a rectangular groove with R, an oval groove, a circular groove, a U groove, a V groove, a right angle V groove, a T groove, and an ant groove. Examples of the seat include a rectangular seat, an oval seat, a circular seat, and a U-shaped seat. Examples of the pocket include a rectangular pocket, an oval pocket, and a free pocket. Examples of the penetration pocket include a rectangular penetration pocket, an oval penetration pocket, and a free penetration pocket.

  FIG. 5 is a diagram showing an example of the specification data 32 of the feature (shape feature). The feature (shape feature) specification data 32 includes setup state information and machining area information. The setup state information is information related to the setting before processing. The processing area information is information regarding the area to be processed.

  The setup state information includes, for example, a setup model ID, STL (Standard Triangulated Language: file format for storing data representing a three-dimensional shape) file name, material code, reference point (X, Y, Z), size (X , Y, Z), reference axis vector (I, J, K), the number of machining areas, and the like.

  The processing area information includes, for example, a processing area number, an identification code, an STL file name, a feature type symbol, a reference point (X, Y, Z), an area size (X, Y, Z), an L vector (I, J, K), surface state, material thickness (cutting allowance), cutting mode symbol, feature information, and the like.

  In the example illustrated in FIG. 5, the feature type symbol is “corner_notch_straight”. The feature information is information indicating the shape of the feature for this feature type symbol.

  FIG. 6 is a diagram illustrating an example of the process mode table 33. The process mode table 33 stores a process mode for each machine type, feature classification, required quality class, machining allowance classification, and machining progress classification.

  The required quality class is one piece of finish information indicating the finish state of the shape feature. The process mode is specified by the category of whether to process with only a single tool or with multiple tools (multi-tool), and the categories of all processing, pre-processing, post-processing, front / back processing, no processing Mode.

  FIG. 7 is a diagram illustrating an example of the cutting mode table 34. The cutting mode table 34 stores a process number, a cutting mode, a processing quality class, a remaining margin, and the like for each process mode and required quality class.

  FIG. 8 is a diagram illustrating an example of the applied tool group table 35. The applied tool group table 35 stores an applied tool group (first priority, second priority, third priority,...) For each feature type and machining quality class. The two-dot chain line means that data that continues in the right direction or the downward direction is omitted.

  The feature type is information indicating the type of the feature (shape feature) as illustrated in FIG. Here, the feature type in FIG. 4 indicates the type of feature in a predetermined reference coordinate system, and the feature type in FIGS. 8 and 9 indicates the type of feature in the processing coordinate system. As described above, the machining quality class is an index that comprehensively represents the accuracy and surface roughness that should be achieved (or can be achieved) by machining. The applied tool group table 35 stores tool groups to be used with priority for each feature type. The data stored in the applied tool group table 35 is used as reference information for automatically determining a tool group to be used (one of information related to the machining process) for the feature to be machined.

  FIG. 9 is a diagram illustrating an example of the priority tool table 36. The priority tool table 36 stores tools to which priorities are assigned for each tool group and machining quality class. Instead of storing the tool itself to be used, a tool type (a tool type name such as a face mill, a shell end mill, or a carbide end mill) may be stored.

  FIG. 10 is a diagram illustrating an example of the tool operation mode table 37. The tool operation mode table 37 stores a tool operation mode (a machining operation mode and a tool movement mode) for each feature type, cutting mode, and shape material classification. Note that the two-dot chain line means that data that continues downward is omitted.

  The tool operation mode table 37 stores a tool operation mode for each feature type. The data stored in the tool operation mode table 37 is used as reference information for automatically determining a tool operation mode (one of information related to the machining process) to be applied to the feature to be machined.

  FIG. 11 is a diagram illustrating an example of the partial machining process data 38. The partial machining process data 38 includes header information and process information. The header information is basic information regarding the target partial machining process. The process information is detailed information regarding the target partial machining process.

  The header information includes, for example, a setup model ID, a reference point (X, Y, Z), a reference axis vector (I, J, K), the number of machining parts, and the like. The process information includes, for example, a machining part identification code, a machining part type code, the number of processes, tool information for each process, machining information, machining residue, path information, cutting conditions, and the like.

  As described above, the machining process determination apparatus 1 according to the first embodiment includes at least the input unit 21, the shape feature specification generation unit 22, the process mode determination unit 23, the cutting mode determination unit 24, and the tool group determination unit 25. , Tool operation mode determining means 27, machining process output means 28, construction method database 30 and the like.

  The construction method database 30 includes at least a process mode table 33 (process mode storage means) for storing process modes for various conditions, a cutting mode table 34 (cutting mode storage means) for storing cutting modes for various conditions, and various conditions. An applied tool group table 35 (applied tool group storage means) for storing tool groups applicable to the tool operation, a tool operation mode table 37 (tool operation mode storage means) for storing tool operation modes for various conditions, and the like are included. .

  The input means 21 inputs shape data of a predetermined product shape and input data 20 including the type of processing machine. The shape feature specification generation means 22 extracts shape features of one or a plurality of processed parts from the shape data, and generates feature (shape feature) specification data 32. The process mode determining means 23 determines the process mode for each shape feature with reference to the process mode storage means, based on the machine data and the feature data 32 of the feature (shape feature). The cutting mode determining unit 24 refers to the cutting mode storage unit based on the feature data 32 and the process mode of the feature (shape feature), and the number of steps for each shape feature and the cutting mode of each step according to the number of steps. To decide. The tool group determination unit 25 refers to the applied tool group storage unit based on the feature data 32 of the feature (shape feature) and the cutting mode, and uses the tool group used in each step according to the number of steps for each shape feature. To decide. The tool operation mode determination unit 27 refers to the tool operation mode storage unit based on the feature data (shape feature) and the cutting mode, and determines the tool operation mode of each step according to the number of steps for each shape feature. decide.

  The machining process output means 28 is determined by successively passing through the shape feature specification generating means 22, the process mode determining means 23, the cutting mode determining means 24, the tool group determining means 25, and the tool operation mode determining means 27. All shapes extracted from shape data by combining the process mode and number of steps for each shape feature, and the cutting mode, tool group and tool operation mode of each step according to the number of steps into a partial machining step for each shape feature The integrated machining process data 29 for machining the product shape is output by integrating the partial machining processes for the features.

  As described above, according to the machining process determination device 1 in the first embodiment, it is possible to significantly reduce human thinking work and to determine a machining process with high efficiency and stable quality.

<Second Embodiment>
With reference to FIG. 12, the machining process determination device 1 in the second embodiment will be described.

  FIG. 12 is a diagram illustrating a software configuration example of the machining process determination device 1 according to the second embodiment. The machining process determination apparatus 1 according to the second embodiment includes an input unit 21, a process mode determination unit 23, a cutting mode determination unit 24, a tool group determination unit 25, a tool operation mode determination unit 27, a construction method database 30, and the like. The construction method database 30 is the same as that in the first embodiment. Further, the machining process determination device 1 in the second embodiment may include priority tool determination means 26 and the like as necessary.

  The input means 21 inputs input data 20a including specification data 32 and the like of features (shape features) extracted from the parts to be processed included in the type of the processing machine and a predetermined product shape. Here, in the feature data 32 of the feature (shape feature) included in the input data 20a, the feature classification and the required quality class in the first embodiment are already set.

  The processing by the process mode determining means 23, the cutting mode determining means 24, the tool group determining means 25, and the tool operation mode determining means 27 based on the inputted feature data 32 (shape characteristics) and the type of the processing machine is the first. This is the same as that of the first embodiment, and a description thereof will be omitted.

  The machining process output means 28 is a process mode and process of shape features determined by continuously passing at least the process mode determination means 23, the cutting mode determination means 24, the tool group determination means 25, and the tool operation mode determination means 27. The cutting mode, the tool group, and the tool operation mode of each process according to the number and the number of processes are integrated to form a feature (shape feature) machining process as shown in FIG. Further, the machining process output means 28 may call the priority tool determination means 26 after calling the tool group determination means 25 as necessary.

  As described above, the machining process output means 28 includes the process mode of the feature, the number of processes, and the cutting mode of each process corresponding to the number of processes, the tool group, and the tool operation. Modes are collected. Further, information on tools or tool types of each process determined by the priority tool determining means 26 is also added and collected as necessary. Then, the machining process output means 28 aggregates them and outputs them as feature machining process data 29a.

  As described above, according to the machining process determination device 1 in the second embodiment, it is possible to significantly reduce human thinking work and determine a machining process with high efficiency and stable quality.

  In particular, the machining process determination apparatus 1 according to the second embodiment is a mode in which input / output is performed for each feature, and the feature data 32 (feature features) to which the feature classification and the required quality class are assigned and the processing machine. The type is input data 20a, and processing process data 29a of the target feature is output. As a result, a commercially available CAM system that has been used in the past can be used as a feature extraction means, and feature data 32 of features (shape features) can be received from the CAM system and used as a solver function that outputs a machining process. Can do.

<Operation in the embodiment of the present invention>
-Process information essential for machining is automatically determined by computer processing, and the thinking work of skilled workers is significantly reduced. Moreover, the variation by humans is also eliminated, and a high-efficiency and stable quality machining process that does not depend on the skill level is determined. This leads to generation of machining data with stable quality, and further to stable machining.
-Since the machining process is determined based on the construction method database information such as the process mode table, cutting mode table, applied tool group table, priority tool table, etc., a stable quality machining process based on unified information is obtained, Standardization of processing is promoted.
-The systematic optimal machining process is automatically determined through various table information in the construction method database carefully selected based on machining know-how.
-By consolidating processing know-how in the construction method database, constant quality on-site know-how is preserved and continuously maintained, leading to succession of technology.

<Effects of Embodiment of the Present Invention>
・ Thoughts of skilled workers are remarkably reduced, and a highly efficient and stable quality processing process is determined.
-By producing | generating process data based on the process determined in embodiment of this invention, highly efficient and stable product processing is implement | achieved.
-Construction of construction method database promotes standardization of machining and standardization of tools, reducing the inventory of jigs and tools and reducing equipment costs. In addition, preservation and transfer of on-site know-how is promoted.
-Automation of machining process determination opens the way to the automation of the entire machining data creation work linked to a commercial CAM system, and it has a great effect on shortening lead time and reducing costs by improving production efficiency and labor saving.

  As mentioned above, although preferred embodiment, such as a processing process determination apparatus concerning the present invention, was described, referring to an accompanying drawing, the present invention is not limited to this example. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these naturally belong to the technical scope of the present invention. Understood.

DESCRIPTION OF SYMBOLS 1 ......... Processing process determination apparatus 11 ......... Control part 12 ......... Storage part 13 ......... Media input / output part 14 ...... Communication control part 15 ......... Input part 16 ......... Display part 17 ... ... Peripheral equipment I / F section 18 ......... Bus 20, 20a ......... Input data 21 ......... Input means 22 ...... Shape feature specification generating means 23 ......... Process mode determining means 24 ......... Cutting mode Determining means 25 ......... Tool group determining means 26 ......... Priority tool determining means 27 ......... Tool operation mode determining means 28 ......... Processing process output means 29 ......... Integrated machining process data 29a ......... Machining process data 30 ......... Method database 31 ......... Basic feature group 32 ......... Specification data of feature (shape feature) 33 ......... Process mode table 34 ......... Cutting mode table 35 ......... Applicable tool group Table 36 ......... Priority tool table 37 ......... Tool operation mode table 38 ......... Partial machining process data

Claims (10)

Input means for inputting the shape data of a predetermined product shape and the type of processing machine;
A shape feature specification generating unit that extracts shape features of one or a plurality of processing parts from the shape data and generates specification data of the shape features;
Process mode storage means for storing process modes for various conditions;
Based on the type of the processing machine and the specification data of the shape feature, referring to the process mode storage means, a process mode determination means for determining the process mode for each shape feature,
Cutting mode storage means for storing the cutting mode for each condition;
A cutting mode for determining the number of steps for each shape feature and the cutting mode of each step according to the number of steps with reference to the cutting mode storage unit based on the specification data of the shape features and the process mode. A determination means;
Applied tool group storage means for storing a tool group applicable to various conditions;
Tool group determination for determining a tool group to be used in each step according to the number of steps for each shape feature with reference to the applied tool group storage unit based on the specification data of the shape feature and the cutting mode Means,
Tool operation mode storage means for storing a tool operation mode for each condition;
Tool operation mode determination for determining a tool operation mode of each process according to the number of processes for each of the shape characteristics with reference to the tool operation mode storage unit based on the specification data of the shape characteristics and the cutting mode Means,
The step for each shape feature determined by successively passing through the shape feature specification generating means, the process mode determining means, the cutting mode determining means, the tool group determining means, and the tool operation mode determining means. The mode and the number of steps, and the cutting mode, the tool group, and the tool operation mode of each step according to the number of steps are aggregated into partial machining steps for each shape feature, and all extracted from the shape data Processing step output means for outputting the integrated processing step when processing the product shape by integrating the partial processing steps for the shape feature of
A machining process determining apparatus comprising: An input means for inputting specification data of a shape feature extracted from a part to be processed included in a type of a processing machine and a predetermined product shape;
Process mode storage means for storing process modes for various conditions;
Based on the type of the processing machine and the specification data of the shape characteristics, referring to the process mode storage means, a process mode determination means for determining the process mode of the shape characteristics,
Cutting mode storage means for storing the cutting mode for each condition;
Cutting mode determination for determining the number of steps of the shape feature and the cutting mode of each step according to the number of steps with reference to the cutting mode storage unit based on the specification data of the shape feature and the process mode Means,
Applied tool group storage means for storing a tool group applicable to various conditions;
Tool group determining means for determining a tool group to be used in each step according to the number of steps of the shape feature with reference to the applied tool group storage means based on the specification data of the shape feature and the cutting mode. When,
Tool operation mode storage means for storing a tool operation mode for each condition;
Tool operation mode determining means for determining a tool operation mode of each process according to the number of processes of the shape feature with reference to the tool operation mode storage means based on the specification data of the shape feature and the cutting mode. When,
The process mode and the number of processes of the shape feature determined by successively passing through the process mode determining means, the cutting mode determining means, the tool group determining means, and the tool operation mode determining means, and the process A machining process output means for collecting the cutting mode, the tool group, and the tool operation mode of each process according to the number and outputting as a machining process of the shape feature;
A machining process determining apparatus comprising: The machining process determination apparatus according to claim 1, wherein the shape feature specification generation unit assigns the shape feature classification and the required quality class to the specification data of the shape feature. The shape feature specification generating means uses, as the shape feature, a three-dimensional shape feature of a region to be processed, extracted from the shape of the processing removal unit as a difference between the material shape and the product shape. It extracts. The processing process determination apparatus of Claim 1 or Claim 3 characterized by the above-mentioned. Priority tool storage means for storing a tool or a tool type assigned a priority for each tool group;
After the tool group is determined by the tool group determining means, the tool to be used according to the priority order from the tools or the tool types belonging to the tool group with reference to the priority tool storage means Priority tool determination means for determining the tool type and giving the tool to be used or information on the tool type to the partial machining step;
Further comprising
The machining process according to any one of claims 1 to 4, wherein the machining process output means further outputs the integrated machining process including information on the tool to be used or the tool type. Decision device. The cutting mode determination means further determines a processing quality class and a remaining margin for each process,
The tool group determination means further determines the tool group with reference to the applied tool group storage means based on the machining quality class. The described process determination apparatus. Computer
Input means for inputting shape data of a predetermined product shape and type of processing machine;
Shape feature specification generating means for extracting shape features of one or a plurality of processing parts from the shape data and generating specification data of the shape features;
Process mode storage means for storing process modes for various conditions;
A process mode determining means for determining the process mode for each shape feature with reference to the process mode storage means based on the type of the processing machine and the specification data of the shape feature,
Cutting mode storage means for storing the cutting mode for each condition;
A cutting mode for determining the number of steps for each shape feature and the cutting mode of each step according to the number of steps with reference to the cutting mode storage unit based on the specification data of the shape features and the process mode. Decision means,
Applicable tool group storage means for storing tool groups applicable to various conditions,
Tool group determination for determining a tool group to be used in each step according to the number of steps for each shape feature with reference to the applied tool group storage unit based on the specification data of the shape feature and the cutting mode means,
Tool operation mode storage means for storing a tool operation mode for each condition,
Tool operation mode determination for determining a tool operation mode of each process according to the number of processes for each of the shape characteristics with reference to the tool operation mode storage unit based on the specification data of the shape characteristics and the cutting mode means,
The step for each shape feature determined by successively passing through the shape feature specification generating means, the process mode determining means, the cutting mode determining means, the tool group determining means, and the tool operation mode determining means. The mode and the number of steps, and the cutting mode, the tool group, and the tool operation mode of each step according to the number of steps are aggregated into partial machining steps for each shape feature, and all extracted from the shape data Processing step output means for outputting the integrated processing step when processing the product shape by integrating the partial processing steps for the shape feature of
Machining process decision program to function as Computer
An input means for inputting specification data of a shape feature extracted from a part to be processed included in a type of a processing machine and a predetermined product shape;
Process mode storage means for storing process modes for various conditions;
A process mode determining means for determining the process mode of the shape feature with reference to the process mode storage means, based on the type of the processing machine and the specification data of the shape feature,
Cutting mode storage means for storing the cutting mode for each condition;
Cutting mode determination for determining the number of steps of the shape feature and the cutting mode of each step according to the number of steps with reference to the cutting mode storage unit based on the specification data of the shape feature and the process mode means,
Applicable tool group storage means for storing tool groups applicable to various conditions,
Tool group determining means for determining a tool group to be used in each step according to the number of steps of the shape feature with reference to the applied tool group storage means based on the specification data of the shape feature and the cutting mode. ,
Tool operation mode storage means for storing a tool operation mode for each condition,
Tool operation mode determining means for determining a tool operation mode of each process according to the number of processes of the shape feature with reference to the tool operation mode storage means based on the specification data of the shape feature and the cutting mode. ,
The process mode and the number of processes of the shape feature determined by successively passing through the process mode determining means, the cutting mode determining means, the tool group determining means, and the tool operation mode determining means, and the process A machining process output means for collecting the cutting mode, the tool group, and the tool operation mode of each process according to the number and outputting as a machining process of the shape feature,
Machining process decision program to function as Process mode storage means for storing process modes for various conditions, cutting mode storage means for storing cutting modes for various conditions, applied tool group storage means for storing tool groups applicable to various conditions, A computer comprising tool operation mode storage means for storing a tool operation mode for each condition,
An input step for inputting the shape data of a predetermined product shape and the type of processing machine;
A shape feature specification generation step for extracting shape features of one or a plurality of processing parts from the shape data and generating specification data of the shape features;
A process mode determination step for determining the process mode for each shape feature with reference to the process mode storage means based on the type of the processing machine and the specification data of the shape feature;
A cutting mode for determining the number of steps for each shape feature and the cutting mode of each step according to the number of steps with reference to the cutting mode storage unit based on the specification data of the shape features and the process mode. A decision step;
Tool group determination for determining a tool group to be used in each step according to the number of steps for each shape feature with reference to the applied tool group storage unit based on the specification data of the shape feature and the cutting mode Steps,
Tool operation mode determination for determining a tool operation mode of each process according to the number of processes for each of the shape characteristics with reference to the tool operation mode storage unit based on the specification data of the shape characteristics and the cutting mode Steps,
The process for each shape feature determined by sequentially passing through the shape feature specification generation step, the process mode determination step, the cutting mode determination step, the tool group determination step, and the tool operation mode determination step. The mode and the number of steps, and the cutting mode, the tool group, and the tool operation mode of each step according to the number of steps are aggregated into partial machining steps for each shape feature, and all extracted from the shape data A processing step output step for outputting the integrated processing step when processing the product shape by integrating the partial processing steps for the shape feature of
The process determination method characterized by performing. Process mode storage means for storing process modes for various conditions, cutting mode storage means for storing cutting modes for various conditions, applied tool group storage means for storing tool groups applicable to various conditions, A computer comprising tool operation mode storage means for storing a tool operation mode for each condition,
An input step of inputting specification data of a shape feature extracted from a part to be processed included in a type of a processing machine and a predetermined product shape;
A process mode determination step for determining the process mode of the shape feature with reference to the process mode storage means based on the type of the processing machine and the specification data of the shape feature;
Cutting mode determination for determining the number of steps of the shape feature and the cutting mode of each step according to the number of steps with reference to the cutting mode storage unit based on the specification data of the shape feature and the process mode Steps,
A tool group determining step of determining a tool group to be used in each step according to the number of steps of the shape feature with reference to the applied tool group storage unit based on the specification data of the shape feature and the cutting mode. When,
A tool operation mode determination step for determining a tool operation mode of each step according to the number of steps of the shape feature with reference to the tool operation mode storage unit based on the specification data of the shape feature and the cutting mode. When,
The process mode and the number of processes of the shape feature determined by successively passing through the process mode determination step, the cutting mode determination step, the tool group determination step, and the tool operation mode determination step, and the process A machining process output step of collecting the cutting mode, the tool group, and the tool operation mode of each process according to the number and outputting as a machining process of the shape feature,
The process determination method characterized by performing.

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