WO2013073436A1 - Dispositif de détection de force de coupe pour machine-outil, procédé de détection de force de coupe, procédé de détection d'anomalie de travail, et système de commande de condition de travail - Google Patents

Dispositif de détection de force de coupe pour machine-outil, procédé de détection de force de coupe, procédé de détection d'anomalie de travail, et système de commande de condition de travail Download PDF

Info

Publication number
WO2013073436A1
WO2013073436A1 PCT/JP2012/078899 JP2012078899W WO2013073436A1 WO 2013073436 A1 WO2013073436 A1 WO 2013073436A1 JP 2012078899 W JP2012078899 W JP 2012078899W WO 2013073436 A1 WO2013073436 A1 WO 2013073436A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
force
cutting force
machining
unit
Prior art date
Application number
PCT/JP2012/078899
Other languages
English (en)
Japanese (ja)
Inventor
武尚 吉川
英明 小野塚
中須　信昭
Original Assignee
株式会社日立製作所
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.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP2013544229A priority Critical patent/JP5793200B2/ja
Publication of WO2013073436A1 publication Critical patent/WO2013073436A1/fr

Links

Images

Classifications

    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
    • B23Q11/0028—Arrangements compensating weight or flexion on parts of the machine by actively reacting to a change of the configuration of the machine
    • 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
    • B23Q17/0904—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 before or after machining
    • B23Q17/0914—Arrangements for measuring or adjusting cutting-tool geometry machine tools
    • 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
    • B23Q17/0952—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 during machining
    • B23Q17/0966—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 during machining by measuring a force on parts of the machine other than a motor
    • 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
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37355—Cutting, milling, machining force
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37388—Acceleration or deceleration, inertial measurement
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50276—Detect wear or defect tool, breakage and change tool

Definitions

  • the present invention relates to an apparatus for measuring a cutting force applied to a tool during machining, a cutting force detection method, a machining abnormality detection method, and a machining condition control system in a machine tool used for machining, and in particular, machining by a 5-axis machining machine.
  • a cutting force detection method for detecting abnormalities such as tool wear and chatter vibration occurring in the machine and suppressing workpiece damage and chatter due to excessive wear It is.
  • End milling using machine tools is a general processing method for processing metal parts into various shapes, and various methods are available by cutting the cutting blade attached to the rotary tool into the work material and removing the material.
  • the cutting process involves many steps of cutting out the shape of a part from square bar or round bar, and the amount of removal increases when machining a part with a complex shape. Higher efficiency is achieved by increasing the size.
  • high-strength and difficult-to-cut materials such as Ni-base alloys and high-hardness cast steel materials are often applied to parts to be machined.
  • the cutting conditions must be reduced to reduce the machining efficiency, which is a problem in increasing the efficiency.
  • the machining shape is increasingly complex with a 3D curved surface, and there are many cases where machining is performed with a multi-axis machine tool such as a 5-axis machining center. It has become.
  • Patent Document 1 and Non-Patent Document 1 as a method of detecting cutting abnormality due to tool wear or the like, the motor load is estimated by measuring the drive current value of the motor used for spindle rotation and set in advance. There is known a method of detecting an abnormality by comparing with a threshold value.
  • Patent Document 2 as a method of setting a threshold value of a motor load, a change pattern of a motor drive current value is grasped in advance by experiment or simulation, and a threshold value is set for each machining path from the change pattern. Is disclosed.
  • Patent Document 3 discloses a method of attaching a vibration sensor (acceleration sensor) to a machine tool, detecting vibration during cutting, and controlling the spindle speed of the machine tool so that the vibration is reduced. .
  • a method of detecting an abnormality by measuring the cutting force applied to the work material and the tool is effective.
  • a measuring instrument generally called a cutting dynamometer is used.
  • a work material is attached to a jig incorporating a force sensor, and the forces in the XYZ axial directions applied to the tool and the work material are measured.
  • the cutting dynamometer is used, the force of contact between the work material and the tool can be directly measured, so that chatter vibration in which cutting vibration becomes abnormally large can be detected. Further, the progress of tool wear can also be grasped by the phenomenon of increased cutting load.
  • tool abnormalities such as minute chipping can be detected from changes in the cutting force waveform.
  • measuring the cutting force using a cutting dynamometer is an effective means for detecting abnormalities in the cutting state, but the premise for using the cutting dynamometer is that the horizontal or vertical direction is used. It is necessary to install a dynamometer. For example, in the case of a vertical machining center that gives a cut in the Z direction, it is common to install a cutting dynamometer on a processing table, fix the work material on it, and perform cutting.
  • the object of the present invention is a cutting force generated between a tool and a work material in a machining state in which the work material is moved while being tilted and rotated as in the case of cutting with a 5-axis cutting machine.
  • the object is to provide a method for accurately measuring the above.
  • an apparatus for detecting a cutting force during machining of a machine tool includes an arithmetic unit, a storage unit, an input unit, an output unit, and a communication unit,
  • the unit stores the work material input from the input unit and the weight of the machining table, and the calculation unit outputs the output of the force sensor incorporated in the support unit of the machining table of the machine tool, or the communication unit,
  • a force sensor measuring unit that receives the input via the input unit and measures a cutting force applied between a tool being cut and a work material, and an output of an acceleration sensor attached to a processing table of a machine tool.
  • an acceleration measurement unit that accepts via the input unit and measures acceleration during movement of the machining table during cutting, calculates the inertial force from the measured acceleration and the weight of the machining table and the work material, Measured with force sensor And a cutting force conversion unit to obtain the cutting force after correction is corrected by the cutting force of inertia force that, the output unit is configured to output the cutting force of the corrected.
  • the cutting force detection device the storage unit is further in theory of machining at a cutting position of discrete points arranged at predetermined intervals or predetermined rules on a machining tool path.
  • the cutting force and the cumulative removal volume from the machining start position to each cutting position are input and stored in advance, and the calculation unit cuts in synchronization with the measurement of the force sensor and the acceleration sensor.
  • a cutting coordinate value acquisition unit that acquires a coordinate value from a machine tool or an NC control device is further included, and the cutting force conversion unit is configured to calculate the cumulative removal volume at a cutting position on a processing tool path corresponding to the cutting coordinate value, It is calculated from the information of the corresponding cutting position stored in the storage unit, the weight of the work material is corrected, the inertial force is calculated based on the corrected weight of the work material, and the force sensor And configured to obtain the cutting force of the corrected and corrected by the inertial force measured cutting force.
  • the cutting force detection device the storage unit is further performing a cutting operation based on a difference between a theoretical calculation cutting force and a cutting force obtained from a measured value.
  • a threshold value for determining abnormality is stored in advance, and the calculation unit stores the theoretical cutting force at the cutting position on the processing tool path corresponding to the cutting coordinate value in the storage unit.
  • a cutting force comparison unit that is calculated from the cutting force information of the cutting position and is compared with the corrected cutting force obtained from the measurement value, and a cutting force that is obtained from the measurement value calculated by the cutting force comparison unit
  • An abnormality determination unit that detects a cutting abnormality by comparing a difference value with a theoretical cutting force with the threshold value for determining an abnormality during cutting stored in the storage unit. Configured.
  • the present invention provides a method for detecting a machining abnormality of a machine tool according to a machining theory in a storage device, a weight of a work material and a machining table, and a cutting position on a machining tool path.
  • the force sensor built in the support part of the machining table of the machine tool, which stores the cutting force, the accumulated removal volume information from the machining start position to each cutting position, and the threshold value for judging abnormality during cutting
  • the cutting force applied between the tool being cut and the work material is measured from the output of, and the acceleration during movement of the work table being cut is measured from the output of the acceleration sensor attached to the work table of the machine tool.
  • a cutting coordinate value is acquired from a machine tool or an NC control device, and a cutting tool path corresponding to the cutting coordinate value is cut.
  • the cumulative removal volume at the position is calculated to correct the weight of the work material
  • the inertia force is calculated based on the corrected work material weight and the acceleration
  • the cutting force measured by the force sensor is calculated as the inertia force.
  • the theoretical cutting force at the cutting position on the machining tool path corresponding to the cutting coordinate value is calculated from the cutting force information at the corresponding cutting position stored in the storage device, and is calculated from the measured value.
  • the difference between the cutting force obtained from the measured value and the theoretical cutting force is calculated, and the threshold value stored in the storage unit In comparison, cutting abnormality was detected.
  • the present invention provides a system for converging the machining conditions during machining of the machine tool to the machining conditions at the peak position within the stable region of the stability limit line, an arithmetic unit, a storage unit, and an input Unit, an output unit, and a communication unit
  • the storage unit is a conversion table of the change rate override amount and chatter index of the machining conditions input from the input unit or the communication unit
  • various variables An initial value and a threshold value are stored
  • the calculation unit Fourier-transforms a cutting force calculated from an output value of a force sensor and an acceleration sensor incorporated in a machining table of a machine tool into a relationship between a frequency and an amplitude to obtain a cutting force.
  • a means for calculating a chatter index represented by a ratio between a vibration amplitude component and a tool vibration amplitude component, and the stored conversion table is searched using the calculated chatter index, and a conversion operation is performed.
  • the present invention even during a cutting state in which a table or work material fixing jig that is fixed with a work material rotates and tilts and moves at a high speed as if cutting with a 5-axis machine, It becomes possible to accurately measure the cutting force applied to the material and the tool. As a result, it is possible to detect abnormalities such as chatter vibration, tool wear, and chipping during cutting in curved cutting, etc., so that it is possible to improve the efficiency of cutting and reduce the cost of workpieces. it can.
  • FIG. 2 is a configuration diagram of a state in which a work material fixing jig for measuring the cutting force according to the first embodiment of the present invention is attached to a machine tool. It is a block diagram of the machine tool for measuring the cutting force of Embodiment 2 of this invention. It is a figure for showing the direction of the cutting force during cutting. It is a figure which shows the item of the data record of a work material and table weight memory
  • FIG. 2 shows a configuration of a work material fixing jig according to the present invention.
  • a machining apparatus with three-axis control will be described as an example, but the number of control axes and the apparatus configuration are not limited to this.
  • the work material 4 is fixed to the work material fixing jig 1, and the work material fixing jig 1 has force sensors 2 incorporated in four places.
  • the force sensor 2 is a strain gauge uge (Strain gauge) configured for load measurement.
  • an acceleration sensor 3 is attached to a part of the work material fixing jig 1.
  • the acceleration sensor 3 is generally classified into three types, mechanical type, optical type, and semiconductor type, and the application of the present invention is not particularly limited, but in this embodiment, a semiconductor type triaxial acceleration sensor is used, Measure acceleration in three directions on the XYZ axes with one device.
  • the work material 4 is cut by repeating the trajectory of the tool path 5 of a cutting tool (not shown).
  • the fixing jig 1 is rotated in the ⁇ 1 and ⁇ 2 directions along with the movement in the X-Y direction by a machine tool (not shown).
  • the acceleration sensor 3 measures the magnitude of acceleration / deceleration of the fixing jig 1 in these operations.
  • the acceleration sensor 3 can detect acceleration values in the XYZ directions, and based on these acceleration values, the magnitude of the inertial force due to the work material and the weight of the fixture relative to the X, Y, and Z directions with reference to the tool Can be calculated.
  • FIG. 3 shows a configuration diagram in which the fixing jig 1 shown in FIG. 2 is installed on the processing table 16 of the machine tool 10.
  • a three-axis machine is used for explanation.
  • the present invention is not limited to this, and a multi-axis machine tool having four or more axes can perform the same measurement as long as the fixing jig 1 can be installed. It is.
  • a machine tool 10 holds a frame 11, a processing tool 14, a main shaft 13 that holds and rotates the processing tool 14, a main spindle stage 12 that moves the main shaft 13, a work material 4, and a work material that moves while holding the work material.
  • the table 16 to be moved The table 16 to be moved, the NC control device 17 for moving the driving device of each stage, the cutting force measuring sensor 2 for measuring the cutting force attached between the table 16 and the fixing jig 1, and the fixing jig 1. And an acceleration sensor 3 for measuring the acceleration value of the fixing jig 1, a communication with the NC control device 17, a cutting force measuring sensor 2, and a cutting force detecting device 30 for detecting a cutting force from the measured value of the acceleration sensor 3.
  • the cutting force detection device 30 of the present invention is realized by using, for example, a part of the functions shown in FIG.
  • the cutting force detection device 30 includes a calculation unit 40, a storage unit 50, an input unit 61, an output unit 62, and a communication unit 63.
  • the calculation unit 40 includes a force sensor measurement unit 41, an acceleration measurement unit 42, a cutting force conversion unit 43, a cutting coordinate value acquisition unit 44, a cutting force comparison unit 45, a removal volume calculation unit 46, and an abnormality determination unit 47.
  • the storage unit 50 includes a work material / table weight storage unit 51, a cutting force / acceleration measurement value storage unit 52, a cutting coordinate value storage unit 53, a cutting position / processing condition storage unit 54, and an abnormality detection threshold storage unit 55.
  • the communication unit 63 of the cutting force detection device 30 is connected to the machine tool 10, the NC control device 17, the three-dimensional CAD 80, and the three-dimensional CAM 81 via the network 90.
  • the machine tool 10 is configured to machine the shape of the workpiece 4 by rotating the tool 14 to cut into the workpiece 4 and removing the machining region 15.
  • the cutting force is generated by the force that the tool 14 receives from the work material 4.
  • a fixing jig 1 is installed on the XY table 16, and a work material 4 is fixed on the fixing jig 1.
  • the work material 4 is cut by a cutting tool 14 chucked on the main shaft 13 of the machine tool 10.
  • the force sensor measuring unit 41 of the cutting force detection device 30 measures the cutting force generated at this time based on the output of the force sensor 2 incorporating the fixing jig 1 and the force sensor amplifier 20 connected thereto.
  • an acceleration sensor 3 is attached to the side surface of the fixing jig 1, and the acceleration measuring unit 42 of the cutting force detection device 30 uses the fixing jig (table) during cutting by the outputs of the acceleration sensor 3 and the acceleration sensor amplifier 21. ) 1 and measure the magnitude of acceleration applied to the work material.
  • the output of the force sensor amplifier 20 is input to the force sensor measurement unit 41 via the network 90 and the communication unit 63, or is input to the force sensor measurement unit 41 via the input unit 61.
  • the output of the acceleration sensor amplifier 21 is input to the acceleration measuring unit 42 via the network 90 and the communication unit 63 or input to the acceleration measuring unit 42 via the input unit 61.
  • the X, Y, and Z directions in the above formula indicate values based on the table, and when converting to the tool-based X, Y, and Z directions, the table tilt angle during cutting is determined from the machine tool. It can be converted by obtaining.
  • FIG. 4 shows an example of a machine tool having a trunnion type table in which a circular table (fixing jig) 100 for fixing the work material 4 is rotated around the X axis by a turning shaft 101.
  • a main shaft 13 is attached to the frame 11 of the machine tool 10 and is movable in the Y direction and the Z direction by a vertical movement mechanism and a horizontal movement mechanism (not shown).
  • a tool 14 can be chucked below the main shaft 13.
  • the trunnion-type table 101 can be moved in the X direction by a horizontal movement mechanism (not shown).
  • the vertical movement and horizontal movement mechanism of the spindle 13, the horizontal movement mechanism of the table 101, and the turning movement of the table 101 The work material 4 can be cut.
  • Force sensors are incorporated in four locations of the circular table (fixing jig) 100, and the cutting force with the work material 4 generated by cutting with the tool 14 can be detected.
  • the acceleration sensor 3 is attached to the circular table 100, and an acceleration value accompanying the table movement can be detected.
  • An inertial force consisting of the weight of the circular table 100 and the work material 4 is added to the force sensor 2 incorporated in the circular table 100 by the axial movement of the machine tool 10 accompanying cutting.
  • the value of the inertial force can be calculated, and the cutting force generated between the tool 14 and the work material 4 can be accurately calculated.
  • the cutting forces Fx and Fz generated between the tool 14 and the work material 4 are calculated in FIG. It is assumed that ax is obtained in the X direction and az is obtained in the Z direction by the output value from the acceleration sensor 3 at the time of cutting.
  • the work material / table weight storage unit 51 of the cutting force detection device 30 in FIG. 1 receives input of the weights of the work material and the table (fixing jig) from the user via the input unit 61 before the start of cutting. And stored in the storage area shown in FIG.
  • the cutting force / acceleration measurement value storage unit 52 represents the cutting force generated on the work material on the table (fixed jig) by the force sensor as the cutting force in the X, Y, and Z directions based on the table of the machine tool. 7a, and the acceleration measurement unit 42 measures the output of the acceleration sensor and converts it into accelerations in the X, Y, and Z directions with reference to the table of the machine tool.
  • the cutting force is stored in the storage area shown in FIG. 7B, and the cutting force conversion unit 43 calculates the cutting force obtained by correcting the inertial force value from the output values of the force sensor 2 and the acceleration sensor 3, and the table of the machine tool is calculated. These are converted into reference cutting forces in the X, Y, and Z directions and stored in the storage area shown in FIG. 7 (c).
  • the cutting coordinate value storage unit 53 inquires of the cutting position to the machine tool 10 or the NC control device 17 that the cutting coordinate value acquisition unit 44 is cutting, for example, the representative position on the central axis of the current tool 14. Stores data acquired with X, Y, Z axis coordinate values based on the machine tool spindle or table.
  • the cutting position / machining condition storage unit 54 has no tool wear or chipping at the positions of a plurality of required points on the tool path (C). Calculate the theoretical cutting force when it is assumed that the tool in the initial state is performing the cutting operation, and the cumulative removal volume when machining the material in the material state from the cutting start point to that position The calculated data is created for each required point, and the data is input and stored as shown in FIG. The data to be stored will be described below.
  • a tool path for performing cutting using a cutting tool 112 in which a processing area 111 is defined for the material CAD data 110 input from the three-dimensional CAD 80 and the processing area is selected.
  • an NC program is created.
  • a point 114 advanced by the tool radius r from the starting point of machining is set as the first cutting position, and a predetermined point is determined from that point.
  • the point 115 advanced by the distance d is a second cutting position and a corner point (or turning point) 116 having a change in the path of the tool is present on the tool path
  • the point 117 before the tool radius r is A plurality of cutting positions are determined at discrete intervals on a series of tool paths according to a rule that the point 118 advanced by the tool radius r is determined as the third and fourth cutting positions. Then, the theoretical cutting force is calculated when it is assumed that the selected tool is performing the cutting operation at each cutting position in an initial state in which no tool wear or chipping occurs. In addition, the cumulative removal volume when the workpiece in the material state is machined from the cutting start point to each cutting position is calculated.
  • the three-dimensional CAM 81 downloads the calculated NC program to the NC control device 17, and downloads the theoretical cutting force and cumulative removal volume at each cutting position on the tool path to the cutting force detection device 30.
  • the cutting force detection device 30 receives an input via the communication unit 63 and stores it in the cutting position / processing condition storage unit 54.
  • the cutting position is expressed in X, Y, Z axis coordinate values on the CAM, for example, in mm units
  • the cutting force is expressed on the X, Y, Z axis on the CAM.
  • the direction component is expressed in N units, for example, and the cumulative removal volume is expressed in m 3 units, for example.
  • FIG. 9 is a diagram showing the flow from the start of machining until the cutting force is detected and abnormality is detected from the acquired cutting force, with the table weight and workpiece weight as input values.
  • a cutting force is generated between the work material 4 and the tool 14.
  • temporary cutting force calculation (primary) is performed by the force sensor 2 incorporated in the fixing jig 1 shown in FIG. 2 or the circular table 100 of the machine tool 10 shown in FIG.
  • the acceleration value is detected by the acceleration sensor 3 attached to the fixing jig 1 or the circular table 100, and the inertial force is calculated from the table weight and the work material weight as input information.
  • the cutting force is corrected and calculated from the values of the cutting force (primary) and inertial force obtained from the detection result of the force sensor and the detection result from the acceleration sensor. Thereby, it is possible to detect an accurate cutting force even during cutting while the table of the machine tool is moving, and it is possible to use the cutting force for detection and determination of abnormalities such as chatter vibration and tool wear.
  • FIG. 11 shows the table (fixed jig) weight and the work material weight as input information, as well as the cutting position information at a predetermined interval on the tool path, the theoretical cutting force at that position, and cumulative removal at the time of NC program creation.
  • stored, and the processing abnormality determination method are shown.
  • the weight of the work material may change greatly as the cutting progresses.
  • This method shows a method of obtaining a more accurate cutting force when cutting such a work material.
  • step S101 in FIG. 11 an instruction for taking in the force sensor value, the acceleration sensor value, and the current cutting coordinate value is issued simultaneously.
  • the output values of the force sensor and the acceleration sensor at this time are recorded in, for example, a latch circuit.
  • the current cutting position is inquired to the machine tool 10 or the NC control device 17.
  • step S102 the cutting force (fx, fy, fz) generated between the work material 4 and the tool 14 by the force sensor measuring unit 41 based on the output value of the force sensor, for example, X based on a table of a machine tool. , Y, Z coordinate system.
  • step S103 the acceleration (ax, ay, az) applied to the work material 4 and the table (fixing jig) 100 by the acceleration measuring unit 42 based on the output value of the acceleration sensor is, for example, X based on the table of the machine tool. , Y, Z coordinate system.
  • step S104 the answer of the current cutting position inquired to the machine tool 10 or the NC control device 17 in step S101 is received via the communication unit 63 and stored in the cutting coordinate value storage unit 53 as a cutting coordinate value.
  • step S105 the cutting position / processing condition data stored in the cutting position / processing condition storage unit 54 is used as a search key to determine which position on the tool path the cutting coordinate value is on. Then, data records of two cutting positions sandwiching the cutting coordinate value are read out. Then, assuming that the cutting coordinate values are interpolated along the tool path between the two cutting positions, the theoretical cutting force (Ftx, Fty, Ftz) of the cutting coordinate values is calculated as 2 The value of the cutting force at one cutting position is calculated by interpolation by interpolation. Also, the cumulative removal volume at the cutting coordinate value is calculated by the removal volume calculation unit 46 by interpolating the value of the cumulative removal volume at the two cutting positions by interpolation.
  • the cutting position / machining condition data is represented by X, Y, Z axis coordinate values on the CAM, the X, Y, Z coordinate system based on, for example, a machine tool table similar to the cutting coordinate values. The above calculation is performed after conversion to the value of.
  • step S107 the cutting force conversion unit 43 uses the cutting force (fx, fy, fz) calculated by the output of the force sensor 2 as the inertia force generated by the acceleration (ax, ay, az) at the cutting coordinate value.
  • the cutting force threshold value registered in advance in the abnormality detection threshold value storage unit 55 is read out with respect to the magnitude of the difference in cutting force to be compared, and the abnormality determination unit 47 performs comparison determination. Detect cutting abnormalities.
  • the abnormality determination result is output to the output unit 62.
  • the abnormality determination unit 47 can also transmit an emergency stop instruction to the machine tool 10 or the NC control device 17 via the communication unit 63 according to the state of the cutting abnormality.
  • the cutting force abnormality determination process described above can be executed at an arbitrary point in time during the cutting process.
  • the program is executed at predetermined time intervals.
  • the cutting position / processing condition storage unit 54 stores information on discrete cutting positions on the tool path calculated in advance in the three-dimensional CAM 81, but the cutting position where cutting coordinate values are stored during processing. If the measured value is acquired from the force sensor and the acceleration sensor and the above calculation is executed when the value reaches the value, it is not necessary to execute the interpolation calculation by the interpolation method in step S105, and the calculation accuracy is also improved. However, it is limited to the cutting position calculated in advance.
  • FIG. 12 shows a connection configuration diagram of the machining device (machine tool) 10, the machining control PC (cutting force detection device) 30, and the NC control device 17 in the third embodiment of the present invention.
  • the NC control device 17 controls the processing device 10 and is connected to the processing machine by machine wiring.
  • the NC control device 17 and the machining control PC 30 are connected by an optical cable or a LAN cable 90 (not shown), and control signals can be input and output to the NC control device 17.
  • the coordinate values of the X, Y, Z, A, and C axes output to the NC controller 17 can be referred to by the machining control PC 30.
  • FIG. 13 shows a connected device configuration of the cutting force detection / abnormality detection system mounted on the machining control PC 30.
  • the machining control PC 30 includes a keyboard and screen touch input device 61, a display device 62 such as an LCD display that allows an operator who is the user to recognize the output result, and communication for input / output of control signals with the NC control device 17. It has an I / F device 63, a computing device 40 composed of a CPU, a memory, etc., and a storage device 50 for storing programs 56 and data 57.
  • the cutting force detection / abnormality detection system implemented on the general-purpose computer as the machining control PC 30 may be implemented on the NC controller 17.
  • FIG. 14 is a schematic diagram illustrating an example of an input screen 200 for items to be input to the machining control PC before starting machining.
  • the operator designates an NC program to be used for machining from the machining NC file field 201, downloads it from the three-dimensional CAM 81 by pressing a read button, and stores it in the program area 56. Further, the tool information to be used is designated from the tool registration file column 202, downloaded from the three-dimensional CAM 81, and stored in the data area 57.
  • a cutting force in machining theory at a cutting position of discrete points arranged at a predetermined interval or a predetermined rule on the machining tool path of the NC program, and a cumulative removal volume from the machining start position to each cutting position are preliminarily three-dimensional.
  • the creation is instructed to the CAM 81, the read button in the cutting theory / cutting state calculation information file field 203 associated with the cutting position is pressed, and the CAM 81 is downloaded from the three-dimensional CAM 81 and stored in the data area 57.
  • the file to be stored can be registered in an arbitrary storage device by pressing a read button.
  • FIG. 15 is a schematic diagram illustrating an example of the work information input screen 230.
  • the workpiece material 231, the initial weight 232, and the jig weight 233 for fixing the workpiece to the processing apparatus 10 are input from each input column.
  • the material of the workpiece can be selected from pre-registered material types.
  • the cutting force detection / abnormality detection system of the present embodiment includes the acquisition state (S101) of the force sensor binary value and the acceleration sensor trivalue during machining in each step of the machining abnormality determination process shown in the flowchart of FIG.
  • a monitor mode for displaying on the display device 62 according to the instruction input is provided.
  • examples of output screen display will be described.
  • FIG. 16A shows an example in which the cutting force waveform stored in the storage device 50 is output to the display device 62 as the cutting force output screen 204 during the machining.
  • the cutting force waveforms in the X, Y, and Z directions indicated by the cutting force waveform 206 are output to the display device 62.
  • a button 205 for outputting a cutting force waveform in a short time is arranged, and when the user presses the button 205, a force sensor binary value of about 60 ms from the pressing is recorded. Then, the cutting force is calculated and the cutting force display screen 206 is displayed.
  • an average cutting force display screen 207 having a time interval of about 60 seconds longer than that at the time of pressing can be output. it can.
  • FIG. 17 shows an example in which the acceleration is calculated from the information of the three values of the acceleration sensor stored in the storage device 50 during the processing and is output to the display device 62 as the acceleration output screen 209.
  • the operator selects / presses the lower screen acceleration button 210 on the acceleration output screen 209, an acceleration sensor value of about 60 s elapsed from the time of pressing is recorded, the acceleration is calculated, and the change in acceleration is displayed on the screen 209.
  • An acceleration waveform 211 is shown.
  • FIG. 18 shows an example in which information on the weight of the workpiece being processed is output to the display device 62 as the workpiece weight output screen 212.
  • the work weight By selecting / depressing the weight button 213 at the bottom of the work weight output screen 212, the work weight during the lapse of about 60 seconds from the time of the depression is calculated and recorded in the storage device 50, and the work weight change 214 is recorded. Show. From the relationship between the acceleration waveform 211 in FIG. 17 and the workpiece weight change in FIG. 18, the change in workpiece weight shown in S106 in FIG. 11 is calculated to calculate the inertial force.
  • FIG. 19 shows an example in which the vibration component of the cutting force obtained by Fourier-transforming the cutting force stored in the storage device 57 during processing into a relationship between frequency and amplitude is output as an output screen 215.
  • this output screen 215 when the operator selects and presses the cutting force vibration button 216 at the bottom of the screen, the cutting force is Fourier-transformed into the relationship between frequency and amplitude from the recorded information of the force sensor value and acceleration sensor value at the time of pressing.
  • the vibration component of the cutting force is output to the cutting force vibration screen 217.
  • a cutting component corresponding to the cutting frequency and a tool vibration component corresponding to the tool resonance frequency component are output as the cutting force amplitude.
  • FIG. 20 shows an example in which information when detecting chatter vibration during machining is output to the display screen 62.
  • the chatter index is a value obtained by dividing the cutting force vibration amplitude component 241 by the vibration amplitude component 242 of the tool on the cutting force vibration display screen 217 of FIG.
  • the chatter vibration state display 220 shows a change in the machining time and the abnormality determination value of the cutting force calculated in S108 of FIG.
  • the chatter vibration state display 220 the upper limit of the chatter index value calculated from a theoretical cutting force calculated in advance as shown in the data table of FIG.
  • an abnormality is output to the display device 62 as an abnormality.
  • the operator can suppress chatter by taking measures such as changing the feed of the processing device (machine tool) 10, the rotation speed of the main shaft 13, and the cutting depth.
  • tool wear, chipping, etc. can be detected.
  • machining conditions such as cutting force are dynamically controlled while the machining apparatus (machine tool) 10 is in operation.
  • the machine tool 10 can dynamically control the machining conditions by multiplying the initially set machining conditions (reflected in the NC program) by an override amount.
  • Parameters for multiplying the override amount generally include the rotational speed of the spindle 13 and the feed speed of the tool 14, and the override amount can be changed in the range of 0 to 200%.
  • the machining condition is changed (controlled) by changing the override amount.
  • the present invention is not limited to this, and a method of directly changing the machining condition is also applicable.
  • the chatter index (threshold value c1) is one of the parameters for evaluating the occurrence of chatter vibration.
  • the measured strength value of the cutting force component is obtained by FFT (Fast Fourier Transform) to obtain the amplitude intensity for each frequency, and the cutting frequency component 241.
  • FFT Fast Fourier Transform
  • the threshold for determination corresponding to the chatter index is c1.
  • the chatter index value exceeds c1
  • the override amount change rate ( ⁇ ) is obtained according to the conversion graph shown in the figure, and the override amount is changed (the ⁇ value is changed). Multiply).
  • the override amount change rate ( ⁇ ) when the chatter index reaches the threshold value c1 is set to 100%. That is, a new override amount is obtained by multiplying the current override amount by the ⁇ value. Further, the machining condition is updated by multiplying the calculated new override amount by the initial setting value of the machining condition.
  • FIG. 21A shows an example in which the override amount change rate ( ⁇ ) is changed stepwise.
  • the chatter index value greatly exceeds the judgment threshold value c1 (c5, c6, c7, etc.)
  • the amount of decrease from 100% of the override amount change rate ( ⁇ ) is increased (p3, p2, p1, etc.) and exceeded.
  • the 100% - ⁇ value is made small. Thereby, chatter vibration can be quickly converged (to a normal state before occurrence).
  • an override amount change rate ( ⁇ ) that is more positive than 100% is set, and control is performed in a direction that further increases the machining efficiency.
  • the override amount change rate ( ⁇ ) that is more positive than 100% is set to take a positive value that is larger than 100% as the chatter index value is significantly lower than c2, and a small positive value that is close to c2.
  • the present invention is not limited to the example in FIG. 21A, and for example, a straight line or a curve can be used as shown in FIG.
  • a curve such as A
  • the override amount change rate ( ⁇ ) is smaller than 100% when the chatter index value is close to c1 or c2, and the effect of preventing chattering of the control is further reduced. is there.
  • FIG. 22 shows a stability limit diagram under general cutting conditions.
  • the region below the stability limit line indicated by A indicates a stable condition (stable region) in which chatter vibration does not occur, and the region above the stability limit line indicates that unstable vibration occurs due to chatter vibration.
  • the unstable condition (unstable region) is as follows.
  • the horizontal axis is the number of rotations of the tool (min ⁇ 1 ) (the number of rotations of the tool 14 around the axis 14a), and the vertical axis is the amount of cutting of the axis (k) (the amount of cutting of the tool 14 (axis 14a) into the work material 4 ).
  • PW is the period width.
  • the initial machining conditions can be derived by calculating the value of the peak position (p) as shown in FIG. 22 using the above-described simulation or the like.
  • the machining condition is guided to the peak position of the stability limit line (A) using the method shown in FIG.
  • the point f is brought close to the upper peak position.
  • the step width ST of the override amount change rate ( ⁇ ) in FIG. 21A is preferably about a fraction (for example, 1/5 or less) of the width PW in FIG.
  • FIG. 23 shows a method of determining (setting) the upper limit (upper limit value) of the override amount so that the override amount in which the chatter vibration has occurred is not used again when chatter vibration has occurred.
  • FIG. 23 shows an example of a change in the override amount (V) when the override amount change rate ( ⁇ ) is determined using FIG. Cutting was started under the initial machining conditions, and it was determined that chatter vibration had not occurred from time 0 to T3. Therefore, the override amount change rate ( ⁇ ) was more positive than 100%, and the override amount (V) increased. I will do it. When the override amount (V) increases, chatter vibration is likely to occur. When the chatter index value exceeds the determination threshold (c1 in FIG.
  • time T3 it is determined that chatter vibration has occurred.
  • the The v3 that is the override amount (V) at this time is stored.
  • the override amount (V) is decreased in order to suppress chatter vibration. If chatter vibration has not recurred after a certain period of time, the override amount (V) is increased, but when the chatter vibration occurs (T3), a value smaller than the override amount v3 stored. (For example, 90% of v3) is set as the upper limit value. Thereby, stable machining can be realized by avoiding the use of the condition that once generated chatter vibration.
  • chatter vibration is detected again at time T4 (override amount v4). Therefore, the override amount in which chatter vibration is detected is re-stored as v4 (update), and similarly, the override amount (V) is decreased so as to suppress chatter vibration. If chatter vibration does not recur after a certain period of time, the override amount (V) is increased again. For example, since the value of 90% of v4 (v5) is reached at time T5, the increase in the override amount is stopped.
  • FIG. 24 shows an algorithm for dynamically controlling the machining conditions described in FIG. 21 (a) and FIG.
  • step S301 an initial value is set.
  • the initial value of the override amount (V) and the override amount change rate (here, ⁇ ) is set to 100
  • the upper limit value of the override amount (VC) is set to the maximum value (max) that the override amount can take
  • the time An initial value t 0 is set in the variable Tc.
  • step S302 the process waits for an instruction to measure the chatter index. If the instruction is confirmed, the process proceeds to the next step S303.
  • a chatter index value (here, H) is calculated.
  • step S305 after the override amount change rate ( ⁇ ) is determined, the current override amount (V) is substituted into the override amount upper limit value (VC) to obtain a new upper limit value.
  • step S306 the current time (t) is stored in Tc.
  • step S307 a new override amount (V) is calculated by multiplying the current override amount (V) by the override amount change rate ( ⁇ ).
  • step S308 the new override amount (V) is stored. The stored new override amount (V) is used to calculate new machining conditions.
  • step S309 the new machining condition is calculated by multiplying the current machining condition by a new override amount (V), and the machining condition of the machining apparatus (machine tool) 10 is changed.
  • V new override amount
  • this processing calculates a new processing condition in the processing control PC 30 and transmits it via the communication cable 90.
  • the calculated new machining conditions are transmitted to the NC control device 17 and used for controlling the machining device (machine tool) 10.
  • step S314 if there is an instruction to end the processing condition update process, the process ends. If there is no instruction to end, the process moves to step S302 again, and the above is repeated.
  • FIG. 25 shows an algorithm for dynamically controlling the machining conditions described in FIG. 21 (b) and FIG.
  • the step (S304, S311) for obtaining the override amount change rate ( ⁇ ) in FIG. 24 is the function ⁇ f (H), g (H) ⁇ of the chatter index (H) in FIG.
  • step S304 for example, when the chatter index value H is equal to or greater than c1, it is determined that chatter vibration has occurred, and the ⁇ value is determined using the function f (H).
  • step S311 if the chatter index value H is less than or equal to c2, it is determined that there is room for chatter vibration, and the ⁇ value is determined using the function g (H).
  • ⁇ 100% is set to prevent chattering.
  • the machining control PC 30 executes the processing (algorithm) as described above, issues a chatter index measurement instruction at a frequency of a predetermined time interval, for example, during machining, updates the new override amount V, and performs NC control.
  • An operation of outputting an instruction to change the machining conditions to the apparatus 17 is conceivable. Further, it is appropriate to increase the execution frequency of this processing (algorithm) as necessary.
  • the processing of the present invention it is possible to determine the occurrence of chatter vibration with a constant threshold regardless of the processing conditions, so that the threshold can be set appropriately, thereby improving the accuracy of abnormality detection. In addition, stable and highly efficient cutting can be realized under the machining conditions immediately before chatter vibration occurs.
  • the processing table 1 (workpiece fixing jig) on which the curved workpiece 4 is fixed by the 5-axis machine (machine tool 10) is rotated and inclined. Even in the state of cutting that moves, the cutting force (component) applied to the workpiece 4 and the tool 14 on the processed surface can be accurately measured (detected). As a result, abnormalities such as chatter vibration, excessive tool wear, and chipping during cutting in curved surface cutting can be detected before the occurrence, and the processing conditions can be suitably controlled. Therefore, it is possible to realize high efficiency of cutting and cost reduction of a processed product.
  • removal volume calculation unit 47 ... abnormality determination unit, 50 ... storage unit, 51 ... Work material / table weight storage unit, 52 ... Cutting force / acceleration measurement value storage unit, 53 ... cutting coordinate value storage unit, 54 ... cutting position / processing condition storage unit, 55... Abnormality detection threshold value storage unit, 56... Program, 57. 61 ... Input unit, 62 ... Output unit, 63 ... Communication unit, 80 ... 3D CAD, 81 ... 3D CAM, 90 ... network, 100 ... circular table, 101 ... trunnion table, 107 ... cutting position / processing condition storage unit, 108 ... cutting force calculation value storage unit, 109 ...
  • cutting force threshold value storage unit 110: Material CAD data, 111: Processing area, 112: Cutting tool, 113 ... Tool path, 114, 115, 117, 118 ... Cutting position, 116... Corner point (or turning point) where there is a change in the course on the tool path 200... Input screen, 201... NC file used for machining, 202... Tool information file, 203... Cutting force / machining state calculation information file, 204. .. Button for outputting a cutting force waveform in a short time on the screen, 206... Cutting force waveform, 207... Average cutting force display screen, 208... Average cutting force display button, 209 ... acceleration output screen, 210 ... acceleration waveform display button, 211 ... acceleration waveform, 212 ...
  • work weight output screen 213 ... weight change display button, 214 ... Change in workpiece weight, 215 ... Cutting force vibration component output screen, 216 ... Cutting force vibration display button, 217 ... Cutting force vibration screen, 218 ... Chatter vibration display screen during machining 219 ... Chatter index button, 220 ... Chatter vibration status display, 230 ... Work information input screen, 231 ... Work material, 232 ... Work initial weight, 233 ... Jig weight, 241 ... Cutting force vibration amplitude component, 242 ... Tool Vibration amplitude component.

Landscapes

  • 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)
  • Numerical Control (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

L'invention concerne un procédé permettant de mesurer avec précision la force de coupe générée entre un outil et un matériau devant être coupé pendant que le matériau devant être coupé est coupé au moyen d'un dispositif de coupe à 5 axes par inclinaison, rotation et déplacement dudit matériau devant être coupé. Un capteur d'accélération est attaché à un outil d'assujettissement du matériau devant être coupé ou une table de travail comportant un capteur de force, et la force de coupe est calculée de manière à annuler l'influence de la force d'inertie du poids de l'outil assujetti et du matériau devant être coupé en raison du mouvement de coupe en mesurant la valeur d'accélération de la table. Les anomalies se présentant au cours de l'opération de coupe sont détectées au moyen de la valeur de différence entre la force de coupe mesurée et la force de coupe théorique.
PCT/JP2012/078899 2011-11-15 2012-11-07 Dispositif de détection de force de coupe pour machine-outil, procédé de détection de force de coupe, procédé de détection d'anomalie de travail, et système de commande de condition de travail WO2013073436A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013544229A JP5793200B2 (ja) 2011-11-15 2012-11-07 工作機械の切削力検出装置、切削力検出方法、加工異常検出方法、および加工条件制御システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-249575 2011-11-15
JP2011249575 2011-11-15

Publications (1)

Publication Number Publication Date
WO2013073436A1 true WO2013073436A1 (fr) 2013-05-23

Family

ID=48429499

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/078899 WO2013073436A1 (fr) 2011-11-15 2012-11-07 Dispositif de détection de force de coupe pour machine-outil, procédé de détection de force de coupe, procédé de détection d'anomalie de travail, et système de commande de condition de travail

Country Status (2)

Country Link
JP (1) JP5793200B2 (fr)
WO (1) WO2013073436A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014115395A1 (fr) * 2013-01-23 2014-07-31 株式会社日立製作所 Procédé de suppression des vibrations de coupe, dispositif de commande de calcul, et machine-outil
KR20140144343A (ko) * 2013-06-10 2014-12-19 두산인프라코어 주식회사 회전 절삭공구의 실시간 이송속도 설정방법 및 제어장치
KR20140144351A (ko) * 2013-06-10 2014-12-19 두산인프라코어 주식회사 회전 절삭공구의 실시간 회전수 설정방법 및 제어장치
CN106925997A (zh) * 2015-12-29 2017-07-07 上海发那科机器人有限公司 一种自动钻铣系统及方法、钻铣生产线
WO2018066072A1 (fr) * 2016-10-04 2018-04-12 三菱電機株式会社 Dispositif de commande
JP2018081487A (ja) * 2016-11-16 2018-05-24 東芝機械株式会社 工作機械およびその制御方法
EP3214513A4 (fr) * 2014-10-29 2018-08-15 Makino Milling Machine Co., Ltd. Procédé de commande pour outil d'usinage et dispositif de commande pour outil d'usinage
JP2019003646A (ja) * 2017-06-14 2019-01-10 ファナック株式会社 電動機の制御装置
CN111323324A (zh) * 2020-03-20 2020-06-23 湖南泰嘉新材料科技股份有限公司 一种双工位测试锯床及其试验方法
US20200238402A1 (en) * 2017-10-17 2020-07-30 Omron Corporation Cutting processing apparatus
JP2020135209A (ja) * 2019-02-15 2020-08-31 Ｄｇｓｈａｐｅ株式会社 切削加工機
CN111805304A (zh) * 2019-03-25 2020-10-23 发那科株式会社 主轴振动测量系统、主轴振动测量方法、以及程序
CN112405113A (zh) * 2020-07-23 2021-02-26 哈尔滨理工大学 高能效铣刀动态切削力变化特性的识别方法
TWI733388B (zh) * 2019-04-17 2021-07-11 日商歐姆龍股份有限公司 切削工具的磨損檢測方法以及切削加工裝置
KR20210095650A (ko) * 2018-11-21 2021-08-02 생-고뱅 어브레이시브즈, 인코포레이티드 실시간 마모 데이터 획득용 시스템 및 방법
JPWO2021241150A1 (fr) * 2020-05-26 2021-12-02
CN114096367A (zh) * 2019-08-09 2022-02-25 住友电气工业株式会社 铣削工具、模块、切削系统、处理方法以及处理程序
CN114536103A (zh) * 2020-11-24 2022-05-27 现代威亚株式会社 用于检测机床中的刀具状态的装置
JP7160230B1 (ja) * 2021-10-18 2022-10-25 住友電気工業株式会社 監視装置、監視方法、加工システム、およびプログラム
CN115315337A (zh) * 2020-04-13 2022-11-08 住友电气工业株式会社 处理系统、显示系统、处理装置、处理方法以及处理程序

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180054354A (ko) * 2016-11-15 2018-05-24 주식회사 대영테크 공작기계의 진동 적응제어방법
KR102144420B1 (ko) * 2018-11-15 2020-08-12 백대균 지능형 가공 시뮬레이션을 이용한 가공 공정 모니터링 시스템 및 이를 이용한 모니터링 방법
CN110370079A (zh) * 2019-07-01 2019-10-25 无锡市锐法因精密机械有限公司 一种铣刀磨损测量方法
KR102521884B1 (ko) * 2020-07-03 2023-04-17 서울대학교 산학협력단 스트레인 센서 기반 공작물 가공 모니터링 방법 및 이를 위한 시스템

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640130A (en) * 1968-11-04 1972-02-08 Kistler Instrumente Ag Force and moment arrangements
JPH0751995A (ja) * 1993-08-06 1995-02-28 Fanuc Ltd 加工負荷監視方式
JPH106180A (ja) * 1996-06-26 1998-01-13 Toshiba Corp ワーク加工装置
JP2003150222A (ja) * 2001-11-08 2003-05-23 Toshiba Corp ３次元製品作成方法及びその装置、３次元製品加工用モデル作成プログラム
US20070277609A1 (en) * 2004-09-29 2007-12-06 Schmitz Tony L Flexure-based dynamometer for determining cutting force
JP2009101495A (ja) * 2007-10-25 2009-05-14 Okuma Corp 振動抑制装置
WO2010010253A1 (fr) * 2008-07-22 2010-01-28 Arts. Platine et procede de mesure d'un effort de coupe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640130A (en) * 1968-11-04 1972-02-08 Kistler Instrumente Ag Force and moment arrangements
JPH0751995A (ja) * 1993-08-06 1995-02-28 Fanuc Ltd 加工負荷監視方式
JPH106180A (ja) * 1996-06-26 1998-01-13 Toshiba Corp ワーク加工装置
JP2003150222A (ja) * 2001-11-08 2003-05-23 Toshiba Corp ３次元製品作成方法及びその装置、３次元製品加工用モデル作成プログラム
US20070277609A1 (en) * 2004-09-29 2007-12-06 Schmitz Tony L Flexure-based dynamometer for determining cutting force
JP2009101495A (ja) * 2007-10-25 2009-05-14 Okuma Corp 振動抑制装置
WO2010010253A1 (fr) * 2008-07-22 2010-01-28 Arts. Platine et procede de mesure d'un effort de coupe

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014115395A1 (fr) * 2013-01-23 2014-07-31 株式会社日立製作所 Procédé de suppression des vibrations de coupe, dispositif de commande de calcul, et machine-outil
KR102092969B1 (ko) 2013-06-10 2020-03-27 두산공작기계 주식회사 회전 절삭공구의 실시간 이송속도 설정방법 및 제어장치
KR20140144343A (ko) * 2013-06-10 2014-12-19 두산인프라코어 주식회사 회전 절삭공구의 실시간 이송속도 설정방법 및 제어장치
KR20140144351A (ko) * 2013-06-10 2014-12-19 두산인프라코어 주식회사 회전 절삭공구의 실시간 회전수 설정방법 및 제어장치
CN104227497A (zh) * 2013-06-10 2014-12-24 斗山英维高株式会社 旋转切削工具的实时设定转速的方法和控制装置
EP2821870A1 (fr) * 2013-06-10 2015-01-07 Doosan Infracore Co., Ltd. Procédé de réglage en temps réel de la vitesse de rotation d'un outil de coupe rotatif et dispositif de commande
US20160161936A1 (en) * 2013-06-10 2016-06-09 Doosan Infracore Co., Ltd. Method for setting feed rate of rotating cutting tool in real time and control device
US9588512B2 (en) 2013-06-10 2017-03-07 Doosan Machine Tools Co., Ltd. Setting method of revolutions per minute on real time of spinning cutting tool, and control device
KR102191166B1 (ko) * 2013-06-10 2020-12-16 두산공작기계 주식회사 회전 절삭공구의 실시간 회전수 설정방법 및 제어장치
EP3214513A4 (fr) * 2014-10-29 2018-08-15 Makino Milling Machine Co., Ltd. Procédé de commande pour outil d'usinage et dispositif de commande pour outil d'usinage
CN106925997A (zh) * 2015-12-29 2017-07-07 上海发那科机器人有限公司 一种自动钻铣系统及方法、钻铣生产线
CN106925997B (zh) * 2015-12-29 2024-01-23 上海发那科机器人有限公司 一种自动钻铣系统及方法、钻铣生产线
WO2018066072A1 (fr) * 2016-10-04 2018-04-12 三菱電機株式会社 Dispositif de commande
JPWO2018066072A1 (ja) * 2016-10-04 2018-10-04 三菱電機株式会社 制御装置
US11256229B2 (en) 2016-11-16 2022-02-22 Shibaura Machine Co., Ltd. Industrial machinery and control method thereof
JP2018081487A (ja) * 2016-11-16 2018-05-24 東芝機械株式会社 工作機械およびその制御方法
JP2019003646A (ja) * 2017-06-14 2019-01-10 ファナック株式会社 電動機の制御装置
US10627807B2 (en) 2017-06-14 2020-04-21 Fanuc Corporation Motor controller
US20200238402A1 (en) * 2017-10-17 2020-07-30 Omron Corporation Cutting processing apparatus
JP2022509136A (ja) * 2018-11-21 2022-01-20 サンーゴバン アブレイシブズ，インコーポレイティド リアルタイム研磨データを取得するためのシステムおよび方法
KR102636780B1 (ko) 2018-11-21 2024-02-15 생-고뱅 어브레이시브즈, 인코포레이티드 실시간 마모 데이터 획득용 시스템 및 방법
KR20210095650A (ko) * 2018-11-21 2021-08-02 생-고뱅 어브레이시브즈, 인코포레이티드 실시간 마모 데이터 획득용 시스템 및 방법
JP7341236B2 (ja) 2018-11-21 2023-09-08 サンーゴバン アブレイシブズ，インコーポレイティド リアルタイム研磨データを取得するためのシステムおよび方法
JP7240194B2 (ja) 2019-02-15 2023-03-15 Ｄｇｓｈａｐｅ株式会社 切削加工機
JP2020135209A (ja) * 2019-02-15 2020-08-31 Ｄｇｓｈａｐｅ株式会社 切削加工機
CN111805304A (zh) * 2019-03-25 2020-10-23 发那科株式会社 主轴振动测量系统、主轴振动测量方法、以及程序
TWI733388B (zh) * 2019-04-17 2021-07-11 日商歐姆龍股份有限公司 切削工具的磨損檢測方法以及切削加工裝置
CN114096367A (zh) * 2019-08-09 2022-02-25 住友电气工业株式会社 铣削工具、模块、切削系统、处理方法以及处理程序
CN114096367B (zh) * 2019-08-09 2023-12-12 住友电气工业株式会社 切削系统、处理方法以及非易失性计算机可读取的记录介质
CN111323324B (zh) * 2020-03-20 2022-06-21 湖南泰嘉新材料科技股份有限公司 一种双工位测试锯床及其试验方法
CN111323324A (zh) * 2020-03-20 2020-06-23 湖南泰嘉新材料科技股份有限公司 一种双工位测试锯床及其试验方法
CN115315337A (zh) * 2020-04-13 2022-11-08 住友电气工业株式会社 处理系统、显示系统、处理装置、处理方法以及处理程序
CN115315337B (zh) * 2020-04-13 2023-09-19 住友电气工业株式会社 处理系统、显示系统、处理装置、处理方法以及处理程序
JP7099646B2 (ja) 2020-05-26 2022-07-12 住友電気工業株式会社 管理装置、表示処理方法および表示処理プログラム
WO2021241150A1 (fr) * 2020-05-26 2021-12-02 住友電気工業株式会社 Dispositif de gestion, procédé de traitement d'affichage, et programme de traitement d'affichage
JPWO2021241150A1 (fr) * 2020-05-26 2021-12-02
CN112405113B (zh) * 2020-07-23 2022-08-02 哈尔滨理工大学 高能效铣刀动态切削力变化特性的识别方法
CN112405113A (zh) * 2020-07-23 2021-02-26 哈尔滨理工大学 高能效铣刀动态切削力变化特性的识别方法
CN114536103A (zh) * 2020-11-24 2022-05-27 现代威亚株式会社 用于检测机床中的刀具状态的装置
JP7160230B1 (ja) * 2021-10-18 2022-10-25 住友電気工業株式会社 監視装置、監視方法、加工システム、およびプログラム
WO2023067642A1 (fr) * 2021-10-18 2023-04-27 住友電気工業株式会社 Dispositif de surveillance, procédé de surveillance, système d'usinage et programme

Also Published As

Publication number Publication date
JP5793200B2 (ja) 2015-10-14
JPWO2013073436A1 (ja) 2015-04-02

Similar Documents

Publication Publication Date Title
JP5793200B2 (ja) 工作機械の切削力検出装置、切削力検出方法、加工異常検出方法、および加工条件制御システム
WO2013150905A1 (fr) Système et procédé d'usinage
JP5710391B2 (ja) 工作機械の加工異常検知装置及び加工異常検知方法
JP5234772B2 (ja) 工作機械の振動抑制方法及び装置
US6662073B1 (en) Apparatus and method for machining simulation for NC machining
JP5608036B2 (ja) 稼動履歴管理方法、及び稼動履歴管理装置
Ismail et al. Chatter suppression in five-axis machining of flexible parts
JP5507409B2 (ja) 工作機械のモニタ方法及びモニタ装置、工作機械
WO2018003813A1 (fr) Machine-outil, procédé de fabrication d'un article traité et système de traitement
JP7053526B2 (ja) 主軸振動測定システム、主軸振動測定方法、およびプログラム
US10088824B2 (en) Toolpath evaluation method, toolpath generation method, and toolpath generation device
JP3699458B2 (ja) 切削抵抗検出方法及び切削抵抗による加工制御方法並びに制御装置
JP2012056051A (ja) びびり振動検出方法及びびびり振動回避方法、並びに工作機械
WO2017159772A1 (fr) Dispositif de prédiction de temps d'usinage, système de coupe, et procédé de prédiction de temps d'usinage
JP2017013187A (ja) 工作機械の主軸負荷モニタ装置
US9651936B2 (en) Machining method
JP6311635B2 (ja) 数値制御装置と制御方法
JP2005074569A (ja) プログラム、コンピュータ装置、多軸加工機、ｎｃプログラムの生成方法、ワークの加工方法
JP2013039645A (ja) 回転速度表示装置
JP5631792B2 (ja) 工作機械のモニタ装置
Zaeh et al. Improvement of the static and dynamic behavior of a milling robot
JP2010262474A (ja) 工作機械の加工支援システム
JP2010023187A (ja) 工作機械の制振システム
JP2013027967A (ja) 工作機械
JP4879225B2 (ja) 工作機械および工作機械における変位補正方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12849756

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2013544229

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12849756

Country of ref document: EP

Kind code of ref document: A1