WO2022102738A1 - 制御装置 - Google Patents
制御装置 Download PDFInfo
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- WO2022102738A1 WO2022102738A1 PCT/JP2021/041693 JP2021041693W WO2022102738A1 WO 2022102738 A1 WO2022102738 A1 WO 2022102738A1 JP 2021041693 W JP2021041693 W JP 2021041693W WO 2022102738 A1 WO2022102738 A1 WO 2022102738A1
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- Prior art keywords
- tool
- value
- adjustment
- offset value
- adjustment value
- Prior art date
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- 238000003860 storage Methods 0.000 claims abstract description 52
- 238000004364 calculation method Methods 0.000 claims abstract description 45
- 238000005520 cutting process Methods 0.000 claims description 53
- 238000003754 machining Methods 0.000 description 72
- 238000010586 diagram Methods 0.000 description 19
- 238000003801 milling Methods 0.000 description 14
- 238000012937 correction Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- KNMAVSAGTYIFJF-UHFFFAOYSA-N 1-[2-[(2-hydroxy-3-phenoxypropyl)amino]ethylamino]-3-phenoxypropan-2-ol;dihydrochloride Chemical compound Cl.Cl.C=1C=CC=CC=1OCC(O)CNCCNCC(O)COC1=CC=CC=C1 KNMAVSAGTYIFJF-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
-
- 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
- G05B19/401—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 control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
-
- 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
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/0205—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system
- G05B13/024—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system in which a parameter or coefficient is automatically adjusted to optimise the performance
- G05B13/0245—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system in which a parameter or coefficient is automatically adjusted to optimise the performance not using a perturbation signal
-
- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
-
- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
-
- 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
- G05B2219/50289—Tool offset general
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- the present invention relates to a control device.
- the tool offset value of each tool is adjusted in order to prevent over-cutting of the work.
- Patent Document 1 When the outer diameter of the work is turned, the operator sets the tool offset values of the outer diameter roughing tool and the outer diameter finishing tool set by the tool presetter or the like before machining the work. , Perform an operation of adding a predetermined adjustment value (Patent Document 1).
- the operator When the inner diameter of the work is turned, the operator subtracts a predetermined adjustment value from the tool offset values of the inner diameter roughing tool and the inner diameter finishing tool set by the tool presetter or the like. Perform the operation. Then, the operator measures dimensions such as the outer diameter and the inner diameter of the workpiece after machining, and corrects the adjustment value so that the workpiece is machined to the design dimensions. This makes it possible to prevent the work from being over-cut.
- the operator needs to input the adjustment value for adjusting each of the multiple tool offset values one by one before the trial machining. Therefore, the working time of the worker is increased, and the operating time of the machine tool is shortened. As a result, productivity in the factory may decrease.
- An object of the present invention is to provide a control device capable of reducing the working time of a worker and improving the productivity in a factory.
- the control device stores an offset value storage unit that stores a plurality of tool offset values associated with a plurality of tools, an adjustment value storage unit that stores an adjustment value used for adjusting a plurality of tool offset values, and an adjustment value. It is provided with a calculation unit for calculating a plurality of adjustment offset values by adjusting a plurality of tool offset values using the above.
- the working time of the worker can be reduced and the productivity in the factory can be improved.
- FIG. 1 is a diagram illustrating an example of a hardware configuration of a machine tool.
- the machine tool 1 is a machine that processes a work using a tool.
- the machine tool 1 cuts a workpiece using a tool such as a cutting tool, an end mill, or a drill.
- the machine tool 1 is, for example, a lathe, a machining center, or a multi-tasking machine.
- the machine tool 1 includes a control device 2, a display device 3, an input device 4, a servo amplifier 5, a servo motor 6, a spindle amplifier 7, a spindle motor 8, a tool presetter 9, and a peripheral device 10. ..
- the control device 2 is a device that controls the entire machine tool 1.
- the control device 2 is, for example, a numerical control device.
- the control device 2 includes a CPU (Central Processing Unit) 201, a bus 202, a ROM (Read Only Memory) 203, a RAM (Random Access Memory) 204, and a non-volatile memory 205.
- a CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- the CPU 201 is a processor that controls the entire control device 2 according to a system program.
- the CPU 201 reads a system program or the like stored in the ROM 203 via the bus 202. Further, the CPU 201 controls the servomotor 6 and the spindle motor 8 according to the machining program to machine the workpiece.
- Bus 202 is a communication path that connects each hardware in the control device 2 to each other. Each hardware in the control device 2 exchanges data via the bus 202.
- the ROM 203 is, for example, a storage device that stores a system program for controlling the entire control device 2 and an analysis program for analyzing various data.
- RAM 204 is a storage device that temporarily stores various data.
- the RAM 204 temporarily stores data related to the tool path calculated by analyzing the machining program, data for display, data input from the outside, and the like.
- the RAM 204 functions as a work area for the CPU 201 to process various data.
- the non-volatile memory 205 is a storage device that retains data even when the machine tool 1 is turned off and the control device 2 is not supplied with power.
- the non-volatile memory 205 is composed of, for example, an SSD (Solid State Drive).
- the non-volatile memory 205 stores, for example, tool information regarding the specifications of the tool input from the input device 4, tool offset value, information indicating the tool life, and a machining program.
- the control device 2 further includes a first interface 206, a second interface 207, an axis control circuit 208, a spindle control circuit 209, a third interface 210, a PLC (Programmable Logic Controller) 211, and I. It is equipped with a / O unit 212.
- the first interface 206 is an interface for connecting the bus 202 and the display device 3.
- the first interface 206 sends, for example, various data processed by the CPU 201 to the display device 3.
- the display device 3 is a device that receives various data via the first interface 206 and displays various data.
- the display device 3 displays, for example, a machining program, a tool offset value, etc. stored in the non-volatile memory 205.
- the display device 3 is a display such as an LCD (Liquid Crystal Display).
- the second interface 207 is an interface for connecting the bus 202 and the input device 4.
- the second interface 207 for example, sends the data input from the input device 4 to the CPU 201 via the bus 202.
- the input device 4 is a device for inputting various data.
- the input device 4 receives, for example, input of a tool offset value and tool information, and sends the input data to the non-volatile memory 205 via the second interface 207.
- the input device 4 is, for example, a keyboard and a mouse.
- the input device 4 and the display device 3 may be configured as one device such as a touch panel.
- the axis control circuit 208 is a control circuit that controls the servomotor 6.
- the axis control circuit 208 receives a control command from the CPU 201 and outputs a command for driving the servomotor 6 to the servo amplifier 5.
- the axis control circuit 208 sends, for example, a torque command for controlling the torque of the servomotor 6 to the servo amplifier 5.
- the servo amplifier 5 receives a command from the axis control circuit 208 and supplies electric power to the servomotor 6.
- the servo motor 6 is a motor that receives power from the servo amplifier 5 and drives it.
- the servomotor 6 is connected to, for example, a tool post, a spindle head, and a ball screw that moves a table.
- the components of the machine tool 1 such as the tool post, spindle head, and table move, for example, in the X-axis direction, the Y-axis direction, or the Z-axis direction.
- the spindle control circuit 209 is a control circuit for controlling the spindle motor 8.
- the spindle control circuit 209 receives a control command from the CPU 201 and outputs a command for driving the spindle motor 8 to the spindle amplifier 7.
- the spindle control circuit 209 sends, for example, a torque command for controlling the torque of the spindle motor 8 to the spindle amplifier 7.
- the spindle amplifier 7 receives a command from the spindle control circuit 209 and supplies electric power to the spindle motor 8.
- the spindle motor 8 is a motor that is driven by receiving electric power from the spindle amplifier 7.
- the spindle motor 8 is connected to the spindle and rotates the spindle.
- the third interface 210 is an interface for connecting the bus 202 and the tool presetter 9.
- the third interface 210 sends the tool offset value detected by the tool presetter 9 to the non-volatile memory via the bus 202.
- the tool presetter 9 is a device that is arranged inside the machine tool 1 and detects tool offset values of a plurality of tools.
- the tool presetter 9 includes a contact sensor.
- a reference point for detecting the tool offset value is set in advance on the spindle to which the tool is attached.
- the tool presetter 9 detects the tool offset value based on the position of the reference point at the timing when the tool contacts the contact sensor.
- the tool presetter 9 sends the detected tool offset value to the RAM 204.
- the PLC 211 executes a ladder program to control the peripheral device 10.
- the PLC 211 controls the peripheral device 10 via the I / O unit 212.
- the I / O unit 212 is an interface for connecting the PLC 211 and the peripheral device 10.
- the I / O unit 212 sends the command received from the PLC 211 to the peripheral device 10.
- the peripheral device 10 is a device that is installed in the machine tool 1 and performs an auxiliary operation when the machine tool 1 processes the work.
- the peripheral device 10 may be a device installed around the machine tool 1.
- the peripheral device 10 is a robot such as a tool changer and a manipulator, for example.
- FIG. 2 is a block diagram showing an example of the function of the control device 2.
- the control device 2 includes, for example, an input reception unit 221, an offset value storage unit 222, an adjustment value storage unit 223, a display unit 224, a calculation unit 225, and a control unit 226.
- the input reception unit 221, the display unit 224, the calculation unit 225, and the control unit 226 use the RAM 204 as a work area for arithmetic processing using, for example, the system program, the control program, and various data stored in the ROM 203 by the CPU 201. Is realized by.
- the offset value storage unit and the adjustment value storage unit 223 store, for example, the data input from the input device 4 and the tool presetter 9 or the processing result of the arithmetic processing in the CPU 201 in the RAM 204 or the non-volatile memory 205. It is realized by being done.
- the input receiving unit 221 receives input of tool offset values of a plurality of tools used for machining from the tool presetter 9.
- the tool offset value is data indicating the distance from the reference point to the tool cutting edge.
- the tool offset value is data indicating the distance from the reference point of the spindle to which the tool is mounted to the tool cutting edge.
- FIG. 3 is a diagram showing an example of a tool offset value of an outer diameter machining tool.
- the outer diameter machining tool To is, for example, a cutting tool.
- the reference point C is set, for example, at the center of the spindle end.
- the tool offset value includes, for example, tool offset values Ox and Oz in the X-axis direction and the Z-axis direction.
- the tool offset value Ox in the X-axis direction is a value indicating the distance in the X-axis direction from the reference point C to the cutting edge.
- the tool offset value Oz in the Z-axis direction is a value indicating the distance in the Z-axis direction from the reference point C to the cutting edge.
- the reference point C is located in the + direction of the X axis and the + direction of the Z axis with respect to the cutting edge of the tool.
- the tool offset value Ox in the X-axis direction and the tool offset value Oz in the Z-axis direction are positive values, respectively.
- FIG. 4 is a diagram showing an example of the tool offset value of the milling tool.
- the milling tool Tm is, for example, an end mill or a milling cutter.
- the reference point C is, for example, the center of the spindle end.
- the tool offset value includes, for example, a value indicating a tool length correction Ol and a value indicating a tool diameter correction Od.
- the value of the tool length correction Ol is a value indicating the distance from the reference point C to the tip of the milling tool Tm.
- the value of the tool diameter correction Od is a value indicating the distance from the reference point C to the outer circumference of the milling tool Tm. That is, the value of the tool diameter correction Od is a value indicating the radius of the milling tool Tm.
- the reference point C is located in the + direction of the X axis with respect to the tip of the tool.
- the value of the tool length correction Ol becomes a positive value.
- the value of the tool diameter correction Od is always a positive value.
- the offset value storage unit 222 stores a plurality of tool offset values associated with each of the plurality of tools.
- the offset value storage unit 222 stores the tool offset value received by the input reception unit 221 in association with each tool.
- the offset value storage unit 222 stores, for example, the tool offset values Ox and Oz in the X-axis direction and the Z-axis direction of each tool in association with the tool number of each tool.
- the input receiving unit 221 also receives input of adjustment values used for adjusting a plurality of tool offset values from the input device 4.
- the adjustment value is numerical information used for collectively adjusting a plurality of tool offset values.
- the adjustment of the tool offset value will be described.
- FIG. 5A and 5B are diagrams for explaining the adjustment of the tool offset value of the outer diameter machining tool To.
- the trial machining means the machining of the first workpiece when a plurality of workpieces having the same shape are continuously machined. Alternatively, it means machining of the first workpiece after the machining program is read out.
- the adjustment value Av of 0.2 [mm] is added to the tool offset value Ox in the X-axis direction and the tool offset value Oz in the Z-axis direction. Will be done.
- the adjustment value Av of 0.2 [mm] is added to the tool offset value Ox in the X-axis direction and the tool offset value Oz in the Z-axis direction of the outer diameter finishing tool.
- the outer diameter dimension and the dimension in the longitudinal direction are machined so as to be larger by the adjustment value Av.
- the adjustment value Av is corrected so that the work W is machined to the design dimension in the subsequent machining.
- the outer diameter dimension of the work W machined using the tool offset value to which the adjustment value Av is added is 0.21 [mm] larger than the design dimension
- the outer diameter of the rough machining tool is in the X-axis direction. It is necessary to perform machining using values obtained by subtracting 0.21 [mm] from the tool offset value Ox and the tool offset value Ox in the X-axis direction of the outer diameter finishing tool.
- the tool offset value Oz in the Z-axis direction of the tool for roughing the outer diameter and the tool for finishing the outer diameter are used. It is necessary to perform machining using a value obtained by subtracting 0.19 [mm] from the tool offset value Oz in the Z-axis direction. By adjusting the tool offset value in this way, the work can be machined to the design dimensions.
- the input receiving unit 221 receives, for example, the input of the adjustment value Av used for collectively adjusting the tool offset value Ox in the X-axis direction of the outer diameter roughing tool and the outer diameter finishing tool. Further, the input receiving unit 221 accepts the input of the adjustment value Av used for collectively adjusting the tool offset value Oz in the Z-axis direction of the outer diameter roughing tool and the outer diameter finishing tool.
- the input receiving unit 221 may accept the input of the adjustment value Av used for collectively adjusting the tool offset value Ox in the X-axis direction of the inner diameter roughing tool and the inner diameter finishing tool. Further, the input receiving unit 221 may accept the input of the adjustment value Av used for collectively adjusting the tool offset value Oz in the Z-axis direction of the inner diameter roughing tool and the inner diameter finishing tool.
- the adjustment value storage unit 223 is received by the input reception unit 221 and stores the adjustment value Av used for adjusting a plurality of tool offset values.
- the display unit 224 causes the display device 3 to display the tool offset values of the plurality of tools stored in the offset value storage unit 222 and the adjustment value Av stored in the adjustment value storage unit 223.
- FIG. 6 is a diagram showing an example of a display screen displayed on the display device 3 by the display unit 224.
- the tool number of each tool the tool information, the tool offset value Ox in the X-axis direction, and the wear amount, and the tool offset value Oz in the Z-axis direction, and the wear amount are displayed.
- the adjustment value Av in the X-axis direction and the adjustment value Av in the Z-axis direction are displayed in the line above the line in which the information about the tool of the tool number "1" is displayed.
- the calculation unit 225 calculates a plurality of adjustment offset values obtained by adjusting a plurality of tool offset values using the adjustment value Av.
- the calculation unit 225 adds the adjustment value Av “0.200” to the tool offset value Ox “3.200” in the X-axis direction of the outer diameter roughing tool, and adjusts the adjustment offset value “3”. .400 "is calculated. Similarly, the adjustment value Av “0.200” is added to the tool offset value Oz “2.500” in the Z-axis direction to calculate the adjustment offset value "2.700".
- the calculation unit 225 calculates the adjustment offset value "4.700” by adding the adjustment value Av “0.200” to the tool offset value Ox "4.500" in the X-axis direction of the outer diameter finishing tool. do. Similarly, the adjustment value Av “0.200” is added to the tool offset value Oz “3.500” in the Z-axis direction to calculate the adjustment offset value "3.700".
- the adjustment offset value calculated by the calculation unit may be stored in a storage unit such as an adjustment offset value storage unit (not shown), for example.
- the control unit 226 controls, for example, the servo motor 6 and the spindle motor 8 to cut the work.
- the control unit 226 analyzes the machining program and calculates the movement path in which the tool moves during machining of the work W, the feed rate of the tool, and the rotation speed of the spindle.
- the control unit 226 rotates the spindle at the calculated rotation speed, and controls the servomotor 6 so that the tool moves at the calculated feed rate along the calculated tool path.
- the work W is processed.
- the control unit 226 controls the position of the tool based on the adjustment offset value calculated by the calculation unit 225.
- the control device 2 is used for the offset value storage unit 222 for storing a plurality of tool offset values associated with the plurality of tools, and for adjusting the plurality of tool offset values. It includes an adjustment value storage unit 223 that stores the adjustment value Av, and a calculation unit 225 that calculates a plurality of adjustment offset values by adjusting a plurality of tool offset values using the adjustment value Av.
- the operator does not need to input a plurality of adjustment values Av when adjusting a plurality of tool offset values. That is, one adjustment value Av for adjusting a plurality of tool offset values at once may be input. As a result, the working time of the worker can be reduced and the productivity in the factory can be improved.
- control device 2 is provided in the machine tool 1.
- control device 2 may be provided, for example, in a management server installed at a place away from the machine tool 1.
- FIG. 7 is a diagram showing an example of the tool offset value of the inner diameter machining tool.
- the reference point C is, for example, the center of the spindle end.
- the tool offset value includes, for example, tool offset values Ox and Oz in the X-axis direction and the Z-axis direction.
- the tool offset value Ox in the X-axis direction is a value indicating the distance in the X-axis direction from the reference point C to the cutting edge.
- the tool offset value Oz in the Z-axis direction is a value indicating the distance in the Z-axis direction from the reference point C to the cutting edge.
- the reference point C is located in the-direction of the X-axis and the +-direction of the Z-axis with respect to the cutting edge of the tool.
- the tool offset value Ox in the X-axis direction is a negative value
- the tool offset value Oz in the Z-axis direction is a positive value.
- FIG. 8A and 8B are diagrams for explaining the adjustment of the tool offset value of the inner diameter machining tool Ti.
- the tool offset value and the inner diameter of the inner diameter roughing tool stored in the offset value storage unit 222 are stored.
- the tool offset value of the finishing tool is adjusted respectively.
- the adjustment value Av of 0.2 [mm] is subtracted from the tool offset value Ox in the X-axis direction of the inner diameter roughing tool, and the adjustment value of 0.2 [mm] is subtracted from the tool offset value Oz in the Z-axis direction. Av is added.
- the adjustment value Av of 0.2 [mm] is subtracted from the tool offset value Ox in the X-axis direction of the inner diameter finishing tool, and the adjustment value of 0.2 [mm] is adjusted with respect to the tool offset value Oz in the Z-axis direction. The value Av is added.
- the inner diameter dimension is machined so as to be smaller by the adjustment value Av, and the longitudinal dimension is machined to be larger by the adjustment value Av.
- the adjustment value Av is corrected so that the work W is machined to the design dimension in the subsequent machining.
- FIG. 9 is a diagram showing an example of a display screen displaying a tool offset value of the inner diameter machining tool Ti.
- the adjustment value storage unit 223 adjusts the tool offset value Oz in the Z-axis direction with -0.200 [mm] as the adjustment value Av for adjusting the tool offset value Ox in the X-axis direction. 0.200 [mm] is stored as the adjustment value Av for this purpose.
- the calculation unit 225 calculates the adjustment offset value by adding the adjustment value Av of ⁇ 0.200 [mm] to the tool offset value Ox in the X-axis direction of the inner diameter roughing tool. Further, the calculation unit 225 calculates the adjustment offset value by adding the adjustment value Av of 0.200 [mm] to the tool offset value Oz in the Z-axis direction of the inner diameter roughing tool.
- the calculation unit 225 calculates the adjustment offset value by adding the adjustment value Av of ⁇ 0.200 [mm] to the tool offset value Ox in the X-axis direction of the inner diameter finishing tool. Further, the calculation unit 225 calculates the adjustment offset value by adding the adjustment value Av of 0.200 [mm] to the tool offset value Oz in the Z-axis direction of the inner diameter finishing tool.
- the inner diameter dimension is reduced by the adjustment value Av, and the dimension in the longitudinal direction is increased by the adjustment value Av.
- the adjustment value Av is corrected according to the measured value.
- the adjustment value Av stored in the adjustment value storage unit 223 is added to the plurality of tool offset values by the calculation unit 225.
- the calculation unit 225 adds the adjustment value Av to each of the plurality of tool offset values or subtracts them from the plurality of tool offset values based on the plurality of tool offset values stored in association with the plurality of tools. You may calculate a plurality of adjustment offset values.
- the calculation unit 225 adds the adjustment value Av to the tool offset value in the X-axis direction.
- the calculation unit 225 subtracts the adjustment value Av from the tool offset value in the X-axis direction.
- FIG. 10 is a diagram showing an example of a display screen displaying the tool offset values of the outer diameter machining tool To and the inner diameter machining tool Ti.
- the tool offset value Ox in the X-axis direction of the outer diameter roughing tool and the outer diameter finishing tool is a positive value. Therefore, the calculation unit 225 adds the adjustment value Av to the tool offset value Ox in the X-axis direction of the outer diameter roughing tool and the outer diameter finishing tool.
- the tool offset value Ox in the X-axis direction of the inner diameter roughing tool and the inner diameter finishing tool is a negative value. Therefore, the calculation unit 225 subtracts the adjustment value Av from the tool offset value Ox in the X-axis direction of the inner diameter roughing tool and the inner diameter finishing tool.
- the tool offset value Oz in the Z-axis direction of the outer diameter roughing tool, the outer diameter finishing tool, the inner diameter roughing tool, and the inner diameter finishing tool is a positive value. Therefore, the calculation unit 225 adds the adjustment value Av to the tool offset value Oz in the Z-axis direction of each tool. As a result, even when both outer diameter machining and inner diameter machining are performed, the operator can adjust the adjustment value used to adjust the respective tool offset values in the X-axis direction and the Z-axis direction. You only have to enter one Av each. As a result, the working time of the worker can be reduced and the productivity in the factory can be improved.
- the calculation unit 225 adds the adjustment value Av to the plurality of tool offset values or subtracts them from the plurality of tool offset values based on the tool information stored in association with the plurality of tools.
- the adjustment offset value may be calculated.
- the tool information is information indicating the names or types of the plurality of tools.
- the name of the tool is, for example, the product name and model number of each tool.
- the types of tools include outer diameter roughing tools, outer diameter finishing tools, inner diameter roughing tools, inner diameter finishing tools, milling tools, and drills.
- the calculation unit 225 refers to the information indicating the name or type of each of the plurality of tools, and determines whether to add the adjustment value Av to the tool offset value of each tool or to subtract it from the tool offset value of each tool. Judge and calculate the adjustment offset value.
- the tool information may include cutting edge information indicating the direction in which each cutting edge of a plurality of tools faces.
- the cutting edge information is, for example, a virtual cutting edge number.
- the virtual cutting edge number is a number indicating the cutting edge position when it is assumed that the cutting edge R is not formed in the tool in which the cutting edge R is formed.
- the cutting edge information is input by an operator from, for example, the input device 4.
- the cutting edge information may be acquired by, for example, the tool presetter 9 and may be input from the tool presetter 9.
- FIG. 11 is a diagram illustrating a virtual cutting edge number.
- 12A to 12D are diagrams showing specific examples of tools corresponding to each virtual cutting edge number.
- Each circle shown in FIG. 11 shows the position of the tool assuming that the intersection of the vertical axis and the horizontal axis is the cutting edge position.
- the calculation unit 225 determines whether to add the adjustment value Av to the tool offset value of each tool or subtract it from the tool offset value of each tool, and calculates the adjustment offset value. ..
- the operator can adjust the tool offset values in the X-axis direction and the Z-axis direction. You only have to enter one Av each. As a result, the working time of the worker can be reduced and the productivity in the factory can be improved.
- the control device 2 may further include an acquisition unit that acquires cutting direction information indicating the cutting direction of each of the plurality of tools from the machining program.
- the calculation unit 225 may calculate a plurality of adjustment offset values by adding the adjustment value Av to each of the plurality of tool offset values or subtracting from the plurality of tool offset values based on the cutting direction information. good.
- FIG. 13 is a block diagram showing the function of the control device 2 provided with the acquisition unit.
- the acquisition unit 227 is realized, for example, by the CPU 201 using the system program, the control program, and various data stored in the ROM 203 for arithmetic processing using the RAM 204 as a work area.
- the acquisition unit 227 acquires the cutting direction information indicating the cutting direction of each of the plurality of tools from the machining program. For example, the acquisition unit 227 acquires the cutting direction information indicating the tool cutting direction used in the roughing cycle in the machining program.
- FIG. 14 is a diagram showing an example of a machining program.
- the machining program shown in FIG. 14 is a machining program for executing rough machining of a workpiece using the rough machining cycle command “G71”.
- the tool is positioned at the machining start position "X100.0Z2.0" by the "G00X100.0Z2.0” described in the sequence number "N12".
- the roughing cycle command "G71U4.0R1.0" described in the sequence number "N13” commands a depth of cut of 4.0 [mm] and a relief amount of 1.0 [mm] during roughing. ..
- Finishing allowance 0.2 [mm] in the X-axis direction, finishing allowance 0.2 [mm] in the Z-axis direction, feed rate 0.25 [mm / rev], and rotation speed 500 [rpm] are commanded. Further, in sequence numbers N15 to N18, the finish shape of the work is instructed.
- the finishing dimension of the outer diameter of the work with respect to the position "X100.0" in the X-axis direction positioned by the sequence number N12 is "X50.0", “X60.0", or "X82.0". .. That is, in the rough machining cycle command, cutting is performed from the machining start position "X100.0Z2.0" to the "-X-axis direction" and the "-Z-axis direction”. That is, the acquisition unit 227 acquires the cutting direction information "-X, -Z” indicating the cutting direction of the tool according to the roughing cycle command "G71".
- the calculation unit 225 adds the adjustment value Av to the tool offset value Ox in the X-axis direction and the tool offset value Oz in the Z-axis direction based on the cutting direction information "-X, -Z" acquired by the acquisition unit 227. To calculate the adjustment offset value.
- the operator uses the adjustment value Av to adjust the respective tool offset values in the X-axis direction and the Z-axis direction. You only have to enter one for each. As a result, the working time of the worker can be reduced and the productivity in the factory can be improved.
- the adjustment value storage unit 223 stores one adjustment value Av for adjusting the tool offset value in the X-axis direction and one adjustment value Av for adjusting the tool offset value in the Z-axis direction.
- the adjustment value storage unit 223 may store a plurality of adjustment values Av in association with each of the X-axis direction and the Z-axis direction. That is, the adjustment value Av adjusts the first adjustment value for adjusting at least one tool offset value among the plurality of tool offset values and the other at least one tool offset value among the plurality of tool offset values. It may include a second adjustment value.
- FIG. 15 is a diagram showing an example of a display screen when the adjustment value storage unit 223 stores a plurality of adjustment values Av.
- the adjustment value storage unit 223 stores the first adjustment value and the second adjustment value.
- the calculation unit 225 calculates the adjustment offset value of each tool using the first adjustment value or the second adjustment value.
- the calculation unit 225 determines, for example, whether to add the first adjustment value to the tool offset value or the second adjustment value based on the tool offset value stored in association with each tool. Calculate the adjustment offset value. When the tool offset value is a positive value, the calculation unit 225 adds the first adjustment value indicating the positive value to the tool offset value. When the tool offset value is a negative value, the calculation unit 225 adds a second adjustment value indicating a negative value to the tool offset value.
- the tool offset value Ox in the X-axis direction of the outer diameter roughing tool and the outer diameter finishing tool is a positive value. Therefore, the calculation unit 225 adds the first adjustment value Av1 indicating a positive value to the tool offset value Ox in the X-axis direction of the outer diameter roughing tool and the outer diameter finishing tool, respectively. Calculate the adjustment offset value.
- the tool offset value Ox in the X-axis direction of the inner diameter roughing tool and the inner diameter finishing tool is a negative value. Therefore, the calculation unit 225 adds a second adjustment value indicating a negative value to the tool offset value Ox in the X-axis direction of the inner diameter roughing tool and the inner diameter finishing tool, respectively, to adjust the offset value. Is calculated.
- the operator adjusts the tool offset values of the plurality of outer diameter machining tools To. Only one adjustment value Av may be input. Further, even when the offset value storage unit 222 stores the tool offset values of the plurality of inner diameter machining tools Ti, the operator can adjust the tool offset values of the plurality of inner diameter machining tools Ti. Only one adjustment value Av may be input. As a result, the working time of the worker can be reduced and the productivity in the factory can be improved.
- the calculation unit 225 determines whether to add the first adjustment value or the second adjustment value Av2 to the tool offset value of each tool based on the information indicating the name or type of the tool.
- the adjustment offset value may be calculated. Further, the calculation unit 225 determines whether to add the first adjustment value or the second adjustment value to the tool offset value of each tool based on the cutting edge information of each tool, and determines the adjustment offset value. May be calculated. Further, the calculation unit 225 determines whether to add the first adjustment value or the second adjustment value to the tool offset value of each tool based on the cutting direction information acquired by the acquisition unit 227.
- the adjustment offset value may be calculated by judgment.
- the offset value storage unit 222 may further store the adjustment value application information in association with the tool information of a plurality of tools.
- the adjustment value application information is information indicating which of the plurality of adjustment values Av the adjustment value Av adjusts the tool offset value of each tool.
- FIG. 16 is a diagram showing an example of a display screen when the offset value storage unit 222 stores the adjustment value application information.
- an application number is displayed as adjustment value application information between the column in which the tool information is displayed and the column in which the tool offset value Ox in the X-axis direction is displayed.
- the first adjustment value and the second adjustment value are numbered “1" and “2", respectively.
- the tool offset value of each tool includes the number “1” or the number “2" indicating which of the first adjustment value and the second adjustment value the tool offset value is adjusted. Is associated and memorized. That is, based on the number "1" or the number "2" stored in association with the tool offset value of each tool, the calculation unit 225 sets the tool offset value of each tool as the first adjustment value or the second adjustment value. It is determined which of the adjustment values Av of the adjustment values of is to be added.
- the operator adjusts the tool offset values of the plurality of outer diameter machining tools To. Only one adjustment value Av may be input. Further, even when the offset value storage unit 222 stores the tool offset values of the plurality of inner diameter machining tools Ti, the operator can adjust the tool offset values of the plurality of inner diameter machining tools Ti. Only one adjustment value Av may be input. As a result, the working time of the worker can be reduced and the productivity in the factory can be improved.
- the adjustment value storage unit 223 stores three or more adjustment values, and three or more adjustment values are displayed on the display screen. You may do so.
- a plurality of adjustment values Av may be applied to one tool offset value.
- both the first adjustment value and the second adjustment value may be added to the outer diameter roughing tool and the outer diameter finishing tool.
- the operator sets the first adjustment value to 0.200 [mm] and the second adjustment value to 0.000 [mm] at the time of the first cutting.
- the operator sets the second adjustment value to ⁇ 0.050 [mm]. That is, the first adjustment value can be used as the adjustment value used at the time of the first machining, and the second adjustment value can be used as the adjustment value for adjusting the first adjustment value.
- the offset value storage unit 222 may store the adjustment value application information and the cutting edge information in association with the tool offset value of each tool.
- the calculation unit 225 determines whether to adjust each tool offset value using the adjustment value Av of the first adjustment value or the second adjustment value based on the adjustment value application information. Further, the calculation unit 225 adds the first adjustment value or the second adjustment value to each tool offset value based on the cutting edge information, or adds the first adjustment value or the second adjustment value from each tool offset value. Determine whether to subtract the value and calculate the adjustment offset value.
- FIG. 18 is a diagram showing an example of a display screen when the offset value storage unit 222 stores the adjustment value application information and the cutting edge information in association with the tool offset value of each tool.
- the adjustment value storage unit 223 stores the numbers “1” and the numbers “2” in association with the first adjustment value and the second adjustment value, respectively.
- the offset value storage unit 222 is associated with the tool offset value of each tool, and is adjusted to indicate whether the tool offset value is adjusted using the adjustment value Av of the first adjustment value or the second adjustment value. Stores value application information. Further, the offset value storage unit 222 stores the cutting edge information indicating the direction of the tool in association with the tool offset value of each tool.
- the calculation unit 225 adds the first adjustment value or the second adjustment value to the tool offset value of each tool based on the adjustment value application information stored in association with the tool information of each tool and the cutting edge information. Alternatively, the first adjustment value or the second adjustment value is subtracted from the tool offset value of each tool.
- the adjustment value application information "1" is stored in association with the outer diameter roughing tool, the outer diameter finishing tool, the inner diameter roughing tool, and the inner diameter finishing tool. Therefore, the first adjustment value is added to the tool offset values of the outer diameter roughing tool, the outer diameter finishing tool, the inner diameter roughing tool, and the inner diameter finishing tool, or from the tool offset value. The first adjustment value is subtracted.
- the cutting edge information "3" is stored in association with the outer diameter roughing tool and the outer diameter finishing tool. Therefore, the first adjustment value of 0.200 [mm] is added to the tool offset value in the X-axis direction of the outer diameter roughing tool and the outer diameter finishing tool. Further, the cutting edge information "2" is associated and stored in the inner diameter roughing tool and the inner diameter finishing tool. Therefore, the first adjustment offset value of 0.200 [mm] is subtracted from the tool offset value in the X-axis direction of the inner diameter roughing tool and the inner diameter finishing tool.
- the adjustment value application information "2" is stored in association with the roughing end mill and the finishing end mill. Therefore, the second adjustment value of 0.200 [mm] is added to the tool diameter correction of the roughing end mill and the finishing end mill, respectively.
- the tool is a rotary tool such as a milling tool
- the tool offset value displayed in the tool offset value column in the X-axis direction is displayed in the tool diameter correction and tool offset value columns in the Z-axis direction.
- the tool offset value is the tool length correction.
- the operator adjusts the tool offset value of the tool used for turning and milling, respectively. You only have to enter one. As a result, the working time of the worker can be reduced and the productivity in the factory can be improved.
Abstract
Description
2 制御装置
3 表示装置
4 入力装置
5 サーボアンプ
6 サーボモータ
7 スピンドルアンプ
8 スピンドルモータ
9 ツールプリセッタ
10 周辺機器
201 CPU
202 バス
203 ROM
204 RAM
205 不揮発性メモリ
206 第1のインタフェース
207 第2のインタフェース
208 軸制御回路
209 スピンドル制御回路
210 第3のインタフェース
211 PLC
212 I/Oユニット
221 入力受付部
222 オフセット値記憶部
223 調整値記憶部
224 表示部
225 算出部
226 制御部
227 取得部
Ox X軸方向の工具オフセット値
Oz Z軸方向の工具オフセット値
C 基準点
To 外径加工用工具
Tm ミリング工具
Ti 内径加工用工具
W ワーク
Ol 工具長補正
Od 工具径補正
Av 調整値
Claims (8)
- 複数の工具にそれぞれ対応付けられた複数の工具オフセット値を記憶するオフセット値記憶部と、
前記複数の工具オフセット値の調整に用いられる調整値を記憶する調整値記憶部と、
前記調整値を用いて前記複数の工具オフセット値を調整した複数の調整オフセット値を算出する算出部と、
を備える制御装置。 - 前記算出部は、前記複数の工具オフセット値に基づいて、前記調整値を前記複数の工具オフセット値に加算して、あるいは前記複数の工具オフセット値から減算して前記複数の調整オフセット値を算出する請求項1に記載の制御装置。
- 前記オフセット値記憶部は、前記複数の工具にそれぞれ対応付けられた複数の工具情報を、さらに記憶し、
前記算出部は、前記複数の工具情報に基づいて、前記調整値を前記複数の工具オフセット値に加算して、あるいは前記複数の工具オフセット値から減算して前記複数の調整オフセット値を算出する請求項1に記載の制御装置。 - 前記複数の工具情報は、前記複数の工具のそれぞれの名称、または種類を示す情報である請求項3に記載の制御装置。
- 前記複数の工具情報は、前記複数の工具のそれぞれの刃先が向く方向を示す刃先情報である請求項3に記載の制御装置。
- 加工プログラムから前記複数の工具のそれぞれの切込方向を示す切込方向情報を取得する取得部を、さらに備え、
前記算出部は、前記切込方向情報に基づいて前記調整値を前記複数の工具オフセット値に加算して、あるいは前記複数の工具オフセット値から減算して前記複数の調整オフセット値を算出する請求項1に記載の制御装置。 - 前記調整値は、前記複数の工具オフセット値のうちの少なくとも1つの工具オフセット値を調整する第1の調整値と、前記複数の工具オフセット値のうちの他の少なくとも1つの工具オフセット値を調整する第2の調整値とを含む請求項1~6のいずれか1項に記載の制御装置。
- 前記オフセット値記憶部は、前記第1の調整値、および前記第2の調整値のいずれの調整値に基づいて、前記複数の調整オフセット値が算出されるかを示す調整値適用情報をさらに記憶する請求項7に記載の制御装置。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05138497A (ja) * | 1991-11-14 | 1993-06-01 | Fanuc Ltd | 工具の摩耗補正方式 |
JPH0736514A (ja) * | 1993-07-20 | 1995-02-07 | Fanuc Ltd | 3次元工具径補正方式 |
JP2002187003A (ja) * | 2000-12-21 | 2002-07-02 | Mori Seiki Co Ltd | 切削工機の制御装置及びその表示方法 |
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JP2003058216A (ja) | 2001-08-09 | 2003-02-28 | Fuji Mach Mfg Co Ltd | 工具の摩耗補正の入力プログラム、入力装置、入力装置付きcnc工作機械 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH05138497A (ja) * | 1991-11-14 | 1993-06-01 | Fanuc Ltd | 工具の摩耗補正方式 |
JPH0736514A (ja) * | 1993-07-20 | 1995-02-07 | Fanuc Ltd | 3次元工具径補正方式 |
JP2002187003A (ja) * | 2000-12-21 | 2002-07-02 | Mori Seiki Co Ltd | 切削工機の制御装置及びその表示方法 |
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