CN-116117596-B - Method and system for accurately controlling cutting parameters and service life of cutter

CN116117596BCN 116117596 BCN116117596 BCN 116117596BCN-116117596-B

Abstract

The invention discloses a method and a system for accurately controlling cutting parameters and the service life of a cutter, and belongs to the field of service life management of cutting cutters. On the basis of strictly controlling the machining parameters, the accurate residual life calculation can be performed based on the service lives of the parts, the machining steps and the cutting parameters, and timely tool changing is reminded. The method can integrally monitor the service conditions of all cutters on all equipment of the whole workshop, and compared with the traditional mode that each person takes care of a few machine tools, the method can control the service conditions of tens of thousands of cutters of hundreds of machine tools by only 1 person. The method can record the specific cutters used in each step of the part machining process and the execution condition of the machining parameters at the time according to the part machining resume table, is convenient for the technicians to analyze quality problems and improve the process parameters, and promotes continuous process improvement. Compared with the traditional life management mode, the method provided by the invention greatly improves the fineness of life management, improves the utilization rate of the cutter and reduces the quality problem of parts caused by cutter abnormality.

Inventors

SHAO SHIJIE
YAN JIANBO
KOU ZHIDA
LIU LIMING
ZHU YINDA

Assignees

陕西法士特汽车传动集团有限责任公司

Dates

Publication Date: 20260505
Application Date: 20230217

Claims (3)

1. The method for accurately controlling the cutting parameters and the service life of the cutter is characterized by comprising the following steps of: The method comprises the steps of obtaining a structured tool list, tool record list information and a tool processing parameter acquisition list, wherein the structured tool list comprises a device model for processing a part, a processing procedure, a step to be executed by each process, a tool position number, a tool model, a tool setting length, a tool setting radius, a preset service life of a tool and a cutting parameter standard value to be used by each step; acquiring the processing steps of the cutter according to the structured cutter list and the cutter processing parameter acquisition table; acquiring the preset service life of the cutter in the current processing step according to the structured cutter list, and acquiring the original residual service life of the cutter according to the information of the cutter record list; According to the preset service life of the cutter and the original service life of the cutter, the residual service life of the cutter, the number of the residual machining pieces and the residual machining time are obtained, so that the accurate control of the service life of the cutter is realized, wherein the residual service life of the cutter is = (the original residual service life- (1/the preset service life S of the cutter)) 100% Remaining part count = tool percent life Preset life of the current step tool, residual machining time = residual number of machining pieces And processing time in the working step.
2. The method for accurately controlling cutting parameters and tool life according to claim 1, wherein cutting parameter standard values are obtained according to an on-machine tool detail table, and cutting parameter real-time values are obtained according to a tool processing parameter acquisition table; when the real-time value of the cutting parameter is larger than the standard value of the cutting parameter, the processing machine alarms; and when the real-time value of the cutting parameter is smaller than or equal to the standard value of the cutting parameter, the processing machine works normally.
3. A system for accurately controlling cutting parameters and tool life, characterized in that the method of any one of claims 1-2 is adopted, comprising: The tool information acquisition module is used for acquiring the structured tool list, the tool history table information and the tool processing parameter acquisition table; The processing step acquisition module is used for acquiring the processing steps of the cutter according to the structured cutter list and the cutter processing parameter acquisition table; The cutter life acquisition module is used for acquiring the preset life of the cutter in the current processing step according to the structured cutter list and acquiring the original residual life of the cutter according to the cutter record list information; The cutter life detection module is used for acquiring the cutter life, the number of the residual machining pieces and the residual machining time according to the preset cutter life and the original residual cutter life, and realizing accurate control of the cutter life.

Description

Method and system for accurately controlling cutting parameters and service life of cutter Technical Field The invention belongs to the field of life management of cutting tools, and relates to a method and a system for accurately managing and controlling cutting parameters and the service life of a tool. Background The cutter is an important factor in the machining process of the parts, and the machining quality, efficiency and cost are determined to a great extent. The cutter is continuously worn in the cutting process, so that the cutter needs to be sharpened or replaced regularly, and the fluctuation of the machining quality of the parts caused by the abrasion and fracture of the cutter is avoided. It is therefore desirable to formulate a reasonable tool life and to sharpen or replace it before the life expires. The tool life control is extremely complex, and the tool is worn only during machining, so that it cannot be calculated simply in terms of time. At present, the number of parts to be machined is usually calculated in the industry, and a machining workshop often needs to machine hundreds of parts, and the same cutter is used for machining different parts, so that the number of parts which can be machined in the service life is different due to different machining materials, cutting amounts, cutting speeds, feeding and the like. Meanwhile, due to the arrangement and planning of a production line, a plurality of machine tools are often needed for machining one part, each machine tool only machines part of working procedures, and the service lives of different parts for machining the same workpiece are different due to the difference of cutting parameters. Therefore, the method for calculating the number of the machined parts is rough, and rough or even unmanaged management of the service life of the cutter can seriously affect the machining quality, efficiency and cost. The service time is too long, so that the processing quality of the cutter in the later life period is reduced, and the cutter is broken and even the workpiece is scrapped. The service time is too short, the utilization rate of the cutter is low, and the cost of frequently replacing the cutter is greatly increased. Reasonable control of tool life needs to consider cutting parameters of a specific tool at a specific part or even a specific part to be machined and an application, and a machining workshop often uses thousands to tens of thousands of tools to machine hundreds of parts, so that the difficulty of accurately controlling the tool life is extremely high. Disclosure of Invention The invention aims to solve the problems that in the prior art, cutting parameters of a specific cutter are required to be considered in a specific part, even a specific part and application of the specific cutter, and hundreds of parts are often machined by tens or hundreds of machine tools in a machining workshop, and under the condition, the difficulty of realizing precise control of the service life of the cutter is high, and provides a method and a system for precisely controlling the cutting parameters and the service life of the cutter. In order to achieve the purpose, the invention is realized by adopting the following technical scheme: the invention provides a method for accurately controlling cutting parameters and cutter service life, which comprises the following steps: Obtaining a structured tool list, tool history list information and a tool processing parameter acquisition list; acquiring the processing steps of the cutter according to the structured cutter list and the cutter processing parameter acquisition table; acquiring the preset service life of the cutter in the current processing step according to the structured cutter list, and acquiring the original residual service life of the cutter according to the information of the cutter record list; according to the preset service life of the cutter and the original residual service life of the cutter, the number of residual machining pieces and the residual machining time are obtained, and the accurate control of the service life of the cutter is realized. Preferably, the method for obtaining the remaining life of the tool is as follows: Tool remaining life= (original remaining life- (1/tool preset life S)) ×100%. Preferably, the method for obtaining the number of remaining machining pieces of the tool is as follows: Number of remaining machining = tool percent life the current step tool preset life. Preferably, the method for obtaining the remaining processing time is as follows: Remaining processing time = number of remaining processing steps processing time. Preferably, a cutting parameter standard value is obtained according to an on-machine tool detail table, and a cutting parameter real-time value is obtained according to a tool processing parameter acquisition table; when the real-time value of the cutting parameter is larger than the standard value of the cutting parameter, th