WO2021237587A1 - Procédé et appareil concernant la gestion de la durée de vie d'une machine-outil, dispositif informatique et support d'enregistrement - Google Patents

Procédé et appareil concernant la gestion de la durée de vie d'une machine-outil, dispositif informatique et support d'enregistrement Download PDF

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Publication number
WO2021237587A1
WO2021237587A1 PCT/CN2020/092983 CN2020092983W WO2021237587A1 WO 2021237587 A1 WO2021237587 A1 WO 2021237587A1 CN 2020092983 W CN2020092983 W CN 2020092983W WO 2021237587 A1 WO2021237587 A1 WO 2021237587A1
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WO
WIPO (PCT)
Prior art keywords
tool
machine
machine tool
information
identification
Prior art date
Application number
PCT/CN2020/092983
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English (en)
Chinese (zh)
Inventor
张亮
孙维
王洋
胡黎红
Original Assignee
西门子股份公司
西门子（中国）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 西门子股份公司, 西门子（中国）有限公司 filed Critical 西门子股份公司
Priority to PCT/CN2020/092983 priority Critical patent/WO2021237587A1/fr
Publication of WO2021237587A1 publication Critical patent/WO2021237587A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • G05B19/4065—Monitoring tool breakage, life or condition

Definitions

  • the present disclosure generally relates to the technical field of factory digitization, and more specifically, to a method, device, computing device, and storage medium for tool life management of machine tools.
  • Machine tools are very common and important in the manufacturing industry. For a specific machine tool, multiple tools can be used to produce parts together, making it very flexible and efficient. Obviously, the quality of the parts and the quality of the tool are closely related. Worn or unqualified tools can cause obvious defects in the final part. Therefore, tool life management is very important in the manufacturing industry.
  • the factory estimates the maximum tool life based on experience. When the tool is cutting, it is necessary to confirm that the tool is still within the service life. Moreover, it would be a great waste to end the use of this expensive tool before the maximum service life of the tool without any solid evidence.
  • a large number of companies solve this problem by collecting data directly from the internal CNC (numerical control system) system of the machine tool. However, it is actually very difficult to collect data from CNC systems, especially tool data. The main reasons are the following:
  • the tool service time is generally the sum of the time period when the tool is installed on the machine tool. This calculation includes some time periods when the tool is not working at all. For machine tools with multiple tools, it is even more difficult to count the actual use time of each tool.
  • the present disclosure provides a general method that can accurately calculate the use time of a tool for various types of machine tools.
  • a tool life management method of a machine tool including: determining the status information of the machine tool, the status information including the identification of the machine tool, the working status of the machine tool, the identification of the tool installed on the machine tool, and the installation of the tool /At least one of the disassembly time, wherein the state information is obtained by at least one of the following ways: using an information collection device to collect, receive user input, and obtain from a third-party information system; and calculate based on the state information The actual use time of the tool.
  • the information collection device includes at least one of the following: a sensor, a camera, a radio frequency identifier, a proximity switch, and a scanning gun.
  • the status information of the machine tool further includes at least one of the following: the mapping relationship between the tool identifier and the installation slot, the tool replacement time during the machining process, and the pre-replacement The identification of the tool and the identification of the replaced tool.
  • the state information of the machine tool further includes at least one of the following: the material type, size, and density of the processed material.
  • the actual use time of the tool can be calculated by considering the information related to the material to be processed.
  • the method further includes: calculating the remaining life of the tool according to the calculated actual usage time of the tool and the maximum usage time of the tool stored in a pre-configured database.
  • the database is configured to include at least one of the following information: a list of machine tools, a list of tools, the maximum service life of each tool, and the wear factor of each material.
  • some information related to the machine tool can be stored in the database in advance, and the relevant information can be queried in the database when calculating the actual use time and remaining life of the tool.
  • the method further includes: issuing a notification when the calculated remaining life of the tool is less than a predetermined threshold.
  • the user can change the tool in time according to the remaining life of the tool to avoid generating unqualified products.
  • the remaining life of the tool can be accurately calculated, and the user can replace the tool in time according to the remaining life of the tool to avoid generating unqualified products; at the same time, the tool can be fully utilized to avoid unnecessary waste.
  • a tool life management device for a machine tool including: a status information determining unit configured to determine status information of the machine tool, the status information including at least the identification of the machine tool, the working status of the machine tool, and the status information on the machine tool.
  • the identification of the installed tool and the installation/disassembly time of the tool, wherein the status information is obtained in at least one of the following ways: collecting with an information collecting device, receiving user input, and obtaining from a third-party information system; and
  • the use time calculation unit is configured to calculate the actual use time of the tool based on the status information.
  • the information collection device includes at least one of the following: a sensor, a camera, a radio frequency identifier, a proximity switch, and a scanning gun.
  • the status information of the machine tool further includes at least one of the following: the mapping relationship between the tool identifier and the installation slot, the tool replacement time during the machining process, and the tool before replacement The identification of the tool and the identification of the replaced tool.
  • the state information of the machine tool further includes at least one of the following: the material type, size, and density of the processed material.
  • the device further includes: a remaining life calculation unit configured to calculate the actual use time of the tool and the maximum use time of the tool stored in a pre-configured database To calculate the remaining life of the tool.
  • a remaining life calculation unit configured to calculate the actual use time of the tool and the maximum use time of the tool stored in a pre-configured database To calculate the remaining life of the tool.
  • the database is configured to include at least one of the following information: a list of uniquely identified machine tools, a list of uniquely identified tools, and the maximum service life of each tool And the wear factor of different materials.
  • the device further includes: a notification unit configured to issue a notification when the calculated remaining life of the tool is less than a predetermined threshold.
  • a computing device including: at least one processor; and a memory coupled with the at least one processor, the memory is used to store instructions, when the instructions are When the processor executes, the processor is caused to execute the method as described above.
  • a non-transitory machine-readable storage medium which stores executable instructions that, when executed, cause the machine to perform the method as described above.
  • a computer program including computer-executable instructions that, when executed, cause at least one processor to perform the method as described above.
  • a computer program product that is tangibly stored on a computer-readable medium and includes computer-executable instructions that, when executed, cause at least A processor executes the method described above.
  • FIG. 1 is a flowchart showing an exemplary process of a tool life management method of a machine tool according to an embodiment of the present disclosure
  • FIG. 2 is a block diagram showing an exemplary configuration of a tool life management device of a machine tool according to an embodiment of the present disclosure.
  • FIG. 3 shows a block diagram of a computing device for tool life management of a machine tool according to an embodiment of the present disclosure.
  • Machine tool tool life management device 202 Status information determination unit
  • Notification unit 300 Computing equipment
  • Processor 304 Memory
  • the term “including” and its variations mean open terms, meaning “including but not limited to”.
  • the term “based on” means “based at least in part on.”
  • the terms “one embodiment” and “an embodiment” mean “at least one embodiment.”
  • the term “another embodiment” means “at least one other embodiment.”
  • the terms “first”, “second”, etc. may refer to different or the same objects. Other definitions can be included below, whether explicit or implicit. Unless clearly indicated in the context, the definition of a term is consistent throughout the specification.
  • the present disclosure proposes a general method for accurately calculating the use time of tools for different types of machine tools.
  • some sensors, cameras, scanning guns, or RFID and other information collection equipment can be installed to collect status information related to the machine tool.
  • it can be considered to include, for example, the working status of the machine tool and the tool.
  • Factors such as the actual working time and the materials to be processed.
  • FIG. 1 is a flowchart showing an exemplary process of a tool life management method 100 of a machine tool according to an embodiment of the present disclosure.
  • the status information of the machine tool is determined, the status information includes at least the identification of the machine tool, the working state of the machine tool, the identification of the tool installed on the machine tool, and the time of the installation/disassembly of the tool.
  • the status information of the machine tool may be determined by at least one of the following methods: collecting information using an information collecting device, receiving information input by a user, and obtaining information from a third-party information system.
  • step S104 the actual use time of the tool is calculated based on the status information.
  • the status information of the machine tool can be obtained, for example, from the machine tool control system (such as CNC (Numerical Control System) or PLC (Programmable Logic Controller), etc.), and in the case that the machine tool control system does not allow access, It can also be obtained by sensors installed on the machine tool (for example, current sensors, vibration sensors, sound sensors, etc.).
  • the machine tool control system such as CNC (Numerical Control System) or PLC (Programmable Logic Controller), etc.
  • sensors installed on the machine tool for example, current sensors, vibration sensors, sound sensors, etc.
  • the identification of the tool By determining the identification of the tool and when the tool is installed on the machine tool, when it is removed from the machine tool, when it is in the working state of cutting, punching, etc., it can be determined whether the tool is actually used for processing. Specifically, for example, the identification of the tool can be scanned by a scanning gun, or if the tool is provided with an RFID tag, its identification can be automatically detected by an RFID reader.
  • the actual use time of the tool can be calculated more accurately. For example, when the tool is installed on the machine tool, but the machine tool is idle or malfunctioning, the time used as the tool will not be calculated.
  • the information collection equipment can be installed for different types of machine tools.
  • the information collection equipment can be sensors, cameras, radio frequency identifiers, proximity switches, and scanning guns.
  • the collected state information of the machine tool may also include the mapping relationship between the tool identification and the installation slot, the replacement time of the tool during the machining process, the identification of the tool before the replacement, and the identification of the tool after the replacement.
  • stamping machine tool Take a stamping machine tool as an example. There are multiple tools installed on it at the same time. During the work of the machine tool, different tools can be automatically replaced according to the needs of the processed materials.
  • a punching machine tool is to set up 10 tools side by side on the frame of the machine tool.
  • the machine tool can automatically take the tool from the frame.
  • devices such as RFID tags or metal proximity switches can be set at the appropriate positions for each tool to detect which tool is changed to the punching head for work.
  • Another type of cutting machine tool is that all tools are installed on the machine at the same time.
  • a camera can be installed to determine whether the tool is working and which tool is working.
  • the information collection equipment used is not limited to the above-mentioned types of equipment, and the present invention does not limit the specific types of information collection equipment.
  • Those skilled in the art can select appropriate information collection equipment for different types of machine tools and tools to detect the status information of the machine tools, which will not be described in detail here.
  • the relevant information of the material can be further combined. To more accurately calculate the usage time of the tool.
  • the wear factor can be set to "1", for steel plates with higher density it can be set to "1.1”, and steel plates with lower density can be set to "0.9".
  • information about the material type, size, density, etc. of the material can be input by the user or obtained from the software system of the factory; for materials of different materials, densities, and thicknesses, it can be based on the experience of the technicians, Or set different wear factors through precise measurement or according to the information provided by the tool manufacturer, which will not be described in detail here.
  • a database can be pre-configured, and the database can include a list of machine tools (where each machine has a unique identification), a list of tools (where each tool has a unique identification), and the information of each tool. Information such as the maximum service life and the wear factor of different materials.
  • the wear factor for the tool can be queried in the database according to the material type, size and density of the processed material, and the wear factor can be combined in the calculation. Calculate the actual usage time of the tool.
  • the identification of the machine tool, the working state of the machine tool, the identification of the tool installed on the machine tool, the installation/disassembly time of the tool, the tool identification and the installation slot are taken into consideration.
  • the actual use time is more accurate, but the present invention does not limit the specific algorithm how to calculate the actual use time.
  • the method may further include step S106: calculating the remaining life of the tool according to the calculated actual use time of the tool and the maximum use time of the tool stored in a pre-configured database.
  • the method may further include step S108: issuing a notification when the calculated remaining life of the tool is less than a predetermined threshold.
  • the notification can be sent by displaying a message on the screen of the management system, or sending a message or email to the user's mobile phone, or issuing a prompt sound.
  • the predetermined threshold can be preset by a technician based on experience.
  • the remaining life of the tool can be accurately calculated, and the user can replace the tool in time according to the remaining life of the tool to avoid generating unqualified products; at the same time, the tool can be fully utilized to avoid unnecessary waste.
  • users can plan tool purchases and inventory accordingly to avoid stopping production due to lack of machine tools.
  • FIG. 2 is a block diagram showing an exemplary configuration of a machine tool tool life management device 200 according to an embodiment of the present disclosure.
  • the tool life management device 200 of a machine tool includes: a status information determination unit 202 and a usage time calculation unit 204.
  • the status information determining unit 202 is configured to determine the status information of the machine tool, the status information including at least the identification of the machine tool, the working status of the machine tool, the identification of the tool installed on the machine tool, and the installation/disassembly time of the tool, wherein the The status information is obtained by at least one of the following methods: collecting with an information collecting device, receiving user input, and obtaining from a third-party information system.
  • the usage time calculation unit 204 is configured to calculate the actual usage time of the tool based on the status information.
  • the information collection device includes at least one of the following: a sensor, a camera, a radio frequency identifier, a proximity switch, and a scanning gun.
  • the status information of the machine tool further includes at least one of the following: the mapping relationship between the tool identification and the installation slot, the replacement time of the tool in the machining process, the identification of the tool before replacement, and the identification of the tool after replacement.
  • the state information of the machine tool further includes at least one of the following: the material type, size, and density of the processed material.
  • the machine tool tool life management device 200 further includes: a remaining life calculation unit 206, which is configured to calculate the remaining life based on the calculated actual use time of the tool and the maximum use time of the tool stored in a pre-configured database. State the remaining life of the tool.
  • the database is configured to include at least one of the following information: a list of machine tools with a unique identification, a list of tools with a unique identification, the maximum service life of each tool, and the wear factor of different materials.
  • the machine tool tool life management device 200 further includes: a notification unit 208 configured to issue a notification when the calculated remaining life of the tool is less than a predetermined threshold.
  • each part of the machine tool tool life management device 200 may be the same or similar to the relevant parts of the embodiment of the machine tool tool life management method 100 of the present disclosure described with reference to FIG. 1, and will not be described in detail here.
  • FIGS. 1 and 2 the embodiments of the tool life management method and device of the machine tool according to the embodiments of the present disclosure have been described.
  • the above-mentioned machine tool tool life management device can be implemented by hardware, or by software or a combination of hardware and software.
  • FIG. 3 shows a block diagram of a computing device 300 for tool life management of a machine tool according to an embodiment of the present disclosure.
  • the computing device 300 may include at least one processor 302 that executes at least one computer-readable instruction stored or encoded in a computer-readable storage medium (ie, the memory 304) (ie, the above-mentioned in the form of software) Implemented elements).
  • computer-executable instructions are stored in the memory 304, which when executed cause at least one processor 302 to complete the following actions: determine the status information of the machine tool, the status information includes the identification of the machine tool, the working status of the machine tool, At least one of the identification of the tool installed on the machine tool and the installation/disassembly time of the tool, wherein the status information is obtained in at least one of the following ways: using an information collection device to collect, receive user input, and from Obtaining by a third-party information system; and calculating the actual use time of the tool based on the status information.
  • a non-transitory machine-readable medium may have machine-executable instructions (that is, the above-mentioned elements implemented in the form of software), which when executed by a machine, cause the machine to execute the various embodiments of the present disclosure in conjunction with FIGS. 1-2.
  • machine-executable instructions that is, the above-mentioned elements implemented in the form of software
  • a computer program including computer-executable instructions, which when executed, cause at least one processor to execute each of the above described in conjunction with FIGS. 1-2 in the various embodiments of the present disclosure.
  • a computer program product including computer-executable instructions, which when executed, cause at least one processor to execute the above described in conjunction with FIGS. 1-2 in the various embodiments of the present disclosure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Factory Administration (AREA)

Abstract

L'invention concerne un procédé et un appareil permettant la gestion de la durée de vie d'une machine-outil, un dispositif informatique et un support d'enregistrement. Le procédé de gestion de la durée de vie d'une machine-outil consiste à : déterminer des informations d'état d'une machine, les informations d'état comprenant au moins un identifiant parmi un identifiant de la machine, l'état de fonctionnement de la machine, un identifiant d'un outil installé sur la machine, et le temps de pose et de dépose de l'outil, les informations d'état étant obtenues au moyen d'au moins l'un des moyens suivants : l'utilisation d'un dispositif d'acquisition d'informations pour acquérir et recevoir une entrée utilisateur et obtenir celle-ci d'un système d'information tiers ; et le calcul du temps d'utilisation réel de l'outil sur la base des informations d'état. Le procédé décrit permet de calculer avec précision la durée de vie restante d'un outil, et un utilisateur peut remplacer rapidement l'outil en fonction de la durée de vie restante de l'outil afin d'éviter la production de produits qui ne sont pas conformes à la norme, tout en utilisant pleinement l'outil afin d'éviter tout déchet inutile.
PCT/CN2020/092983 2020-05-28 2020-05-28 Procédé et appareil concernant la gestion de la durée de vie d'une machine-outil, dispositif informatique et support d'enregistrement WO2021237587A1 (fr)

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PCT/CN2020/092983 WO2021237587A1 (fr) 2020-05-28 2020-05-28 Procédé et appareil concernant la gestion de la durée de vie d'une machine-outil, dispositif informatique et support d'enregistrement

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CN116165966A (zh) * 2023-04-21 2023-05-26 沈阳精锐数控机床有限公司 一种数控机床信息化自适应物料调控方法及系统
CN117884695A (zh) * 2024-03-15 2024-04-16 廊坊市伊贝格机械有限公司 五轴联动双摆铣头的运行监测方法、系统、设备及介质

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