WO2012105028A1 - 数値制御装置 - Google Patents
数値制御装置 Download PDFInfo
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- WO2012105028A1 WO2012105028A1 PCT/JP2011/052287 JP2011052287W WO2012105028A1 WO 2012105028 A1 WO2012105028 A1 WO 2012105028A1 JP 2011052287 W JP2011052287 W JP 2011052287W WO 2012105028 A1 WO2012105028 A1 WO 2012105028A1
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- 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
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- 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
- G05B19/408—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 data handling or data format, e.g. reading, buffering or conversion of data
- G05B19/4083—Adapting programme, configuration
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- 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
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36234—Convert program for a 2-axis machine into program for 4-axis machine
-
- 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
- G05B2219/50249—Tool, probe, pen changer
Definitions
- the present invention relates to a numerical control device.
- Patent Document 1 describes an NC turret lathe that does not have a Y-axis.
- the NC turret lathe rotates the tool turret, the Z axis that performs the workpiece feeding operation, the C axis that rotates the workpiece, the X axis that is perpendicular to the Z axis and performs the tool turret feeding operation. It has a turret rotation axis, but does not have a Y axis perpendicular to the Z axis and the X axis.
- the control for performing machining as if it has the Y axis that is, the virtual Y axis control
- the rotation of the C axis, the rotation of the turret rotation axis, and the feeding operation of the X axis are performed in conjunction with each other. Is called.
- the rotation of the C-axis is performed independently during the virtual Y-axis control
- the rotation of the turret rotation shaft and the feeding operation of the X-axis are caused simultaneously with the rotation of the C-axis. For this reason, when it is desired to position the workpiece (single rotation of the C-axis), it is necessary to cancel the virtual Y-axis control once.
- the tool when continuing machining by virtual Y-axis control while exchanging tools, the tool returns to the tool exchange position every time one machining (machining process) is completed, cancels virtual Y-axis control, and after canceling, the tool Exchange (single rotation of the turret rotation axis) is performed, and the virtual Y-axis control is made valid again. For this reason, it exists in the tendency for the cycle time of a process to become long.
- the present invention has been made in view of the above, and an object of the present invention is to obtain a numerical control device capable of reducing the cycle time of processing.
- a numerical control device includes an X axis that moves a turret to which a plurality of tools are attached, an H axis that rotates the turret, A numerical control device for controlling a machine tool having a C-axis for rotating a workpiece and not having a Y-axis orthogonal to the X-axis.
- the H-axis is rotated independently according to the H-axis single rotation command. Further, it is characterized by comprising means for performing tool change.
- the tool can be changed during the virtual Y-axis control without canceling the virtual Y-axis control. Therefore, since the number of steps in a series of processing can be reduced, the cycle time of processing can be reduced.
- FIG. 1 is a diagram showing an external configuration of a work support unit and a turret in the first embodiment.
- FIG. 2 is a diagram illustrating a configuration of the numerical controller according to the first embodiment.
- FIG. 3 is a flowchart of the operation of the numerical control apparatus according to the first embodiment.
- FIG. 4 is a flowchart showing a workpiece machining procedure according to the first embodiment.
- FIG. 5 is a diagram showing a machining program in the first embodiment.
- FIG. 6 is a diagram illustrating a workpiece machining procedure according to the first embodiment.
- FIG. 7 is a flowchart showing a workpiece machining procedure according to the second embodiment.
- FIG. 8 is a diagram showing a machining program in the second embodiment.
- FIG. 1 is a diagram showing an external configuration of a work support unit and a turret in the first embodiment.
- FIG. 2 is a diagram illustrating a configuration of the numerical controller according to the first embodiment.
- FIG. 3 is
- FIG. 9 is a diagram illustrating a workpiece machining procedure according to the second embodiment.
- FIG. 10 is a flowchart showing a workpiece machining procedure according to the third embodiment.
- FIG. 11 is a diagram showing a machining program in the third embodiment.
- FIG. 12 is a diagram illustrating a workpiece machining procedure according to the third embodiment.
- FIG. 13 is a diagram illustrating a configuration of a numerical control device according to a comparative example.
- FIG. 14 is a flowchart showing a workpiece machining procedure in the comparative example.
- FIG. 15 is a diagram showing a machining program in the comparative example.
- FIG. 16 is a diagram showing a workpiece machining procedure in the comparative example.
- FIG. 1 A schematic configuration of the numerical controller 1 according to the first embodiment will be described with reference to FIGS. 1 and 2.
- FIGS. 1A and 1B are a perspective view and a front view, respectively, showing an external configuration of a machine tool 900 controlled by the numerical control device 1.
- FIG. 2 is a block diagram showing the configuration of the numerical control device 1.
- the machine tool 900 has a turret 905 and a workpiece support 906 as shown in FIGS. 1 (a) and 1 (b).
- the machine tool 900 has an X axis, a Z axis, an H axis, and a C axis.
- the X axis is a movement axis that moves the turret 905.
- the Z axis is a movement axis for moving the workpiece W.
- the H axis is a rotation axis for turning the tools 9051 and 9052 by rotating the turret 905.
- the C axis is a rotation axis that rotates the workpiece W.
- the Y axis perpendicular to the X axis and the Z axis is shown by broken lines.
- the Y axis is a virtual movement axis used in the virtual Y axis control mode in the machining program 343 created by the user.
- the user designates the coordinate positions of the X-axis, Y-axis, H-axis, and C-axis to create a required machining program 343.
- the user does not consider the rotation of the H-axis and C-axis, for example, assuming that the arrow in S23 in FIG. 6 is attached, that is, the tool direction and the virtual plane X-axis coincide with each other.
- the machining program 343 is created by specifying the above.
- the X-axis command is described as “X20”, the Y-axis command as “Y10”, the C-axis command as “C-180”, and the H-axis command as “T1111” (see FIG. 5). ).
- the machine tool 900 further includes X-axis, H-axis, Z-axis, and C-axis servomotors 901, 902, 903, and 904, as shown in FIG.
- the X axis servo motor 901 and the H axis servo motor 902 move the X axis and rotate the H axis with respect to the turret 905.
- the Z-axis servo motor 903 and the C-axis servo motor 904 move the Z-axis and rotate the C-axis with respect to the workpiece support unit 906.
- the numerical control device 1 includes a display unit 10, an input operation unit 20, a control calculation unit 30, and a drive unit 90.
- an automatic activation signal of the machining program 343 is supplied to the control calculation unit 30 in accordance with the operation of the automatic activation button of the machining program 343 by the user.
- the control calculation unit 30 activates the machining program 343, and in accordance with the machining program 343, the X-axis movement amount command, the H-axis rotation amount command, the Z-axis movement amount command, and the C-axis rotation amount.
- a command is generated and supplied to the drive unit 90.
- the drive unit 90 includes an X-axis servo control unit 91, an H-axis servo control unit 92, a Z-axis servo control unit 93, and a C-axis servo control unit 94, and the X-axis movement amount input from the control calculation unit 30
- the X-axis servo motor 901, H-axis servo motor 902, Z-axis servo motor 903, and C-axis servo motor 904 are driven according to the command, the H-axis rotation command, the Z-axis movement command, and the C-axis rotation command. .
- the control calculation unit 30 includes a PLC 36, a machine control signal processing unit 35, a storage unit 34, an analysis processing unit 37, an interpolation processing unit 38, a virtual Y axis control switching processing unit 39, a switch 44, an acceleration / deceleration processing unit 43, and a virtual Y axis.
- a control unit 41, an axis data output unit 42, an input control unit 32, a screen processing unit 31, and a data setting unit 33 are included.
- the automatic start signal of the machining program 343 is input to the machine control signal processing unit 35 via the PLC 36.
- the machine control signal processing unit 35 instructs the analysis processing unit 37 via the storage unit 34 to activate the machining program 343.
- the storage unit 34 stores the tool correction data 342, the machining program 343, and the screen display data 344, and has a shared area 345 as a work space.
- the analysis processing unit 37 calculates the tool correction amount (Tx, Ty) (see FIG. 6) and stores it in the storage unit 34 as the tool correction data 342.
- the analysis processing unit 37 reads the machining program 343 from the storage unit 34 in response to the activation instruction of the machining program 343, and performs analysis processing on each block (each row) of the machining program 343. If the analyzed block (row) includes an M code (for example, the M code “M111” shown in FIG. 5), the analysis processing unit 37 stores the analysis result via the storage unit 34 and the machine control signal processing unit 35. To the PLC 36. If the analyzed line includes a code other than the M code (for example, the G code “G01” shown in FIG. 5), the analysis processing unit 37 adds the tool correction amount (Tx, Ty) to the analysis result. To the interpolation processing unit 38.
- M code for example, the M code “M111” shown in FIG. 5
- the PLC 36 When the PLC 36 receives the analysis result of the virtual Y-axis control mode ON (for example, the M code “M111” shown in FIG. 5), the PLC 36 has a virtual Y-axis control mode signal processing unit 351 in the machine control signal processing unit 35.
- the Y-axis control mode signal is turned on and temporarily stored in the shared area 345 of the storage unit 34.
- the virtual Y-axis control mode is started, and each unit recognizes that it is in the virtual Y-axis control mode by referring to the virtual Y-axis control mode signal (ON state) of the common area 345. To do.
- the PLC 36 When the PLC 36 receives the analysis result of the virtual Y-axis control mode OFF (for example, the M code “M101” shown in FIG. 5), the PLC 36 has the virtual Y-axis control mode signal processing unit 351 in the machine control signal processing unit 35.
- the Y-axis control mode signal is turned off and temporarily stored in the common area. Thereby, in the numerical control apparatus 1, the virtual Y-axis control mode is canceled and a control mode other than the virtual Y-axis control mode is set.
- the interpolation processing unit 38 receives the analysis result (position command) from the analysis processing unit 37, performs interpolation processing on the analysis result (position command), and sends the result of the interpolation processing (movement amount, rotation amount) to the acceleration / deceleration processing unit 43. Supply.
- the acceleration / deceleration processing unit 43 performs acceleration / deceleration processing on the result of the interpolation processing supplied from the interpolation processing unit 38.
- the acceleration / deceleration processing unit 43 outputs the acceleration / deceleration processing results for the X axis, Y axis, C axis, and H axis to the switch 44, and directly outputs the acceleration / deceleration processing results for the Z axis to the axis data output unit.
- the switch 44 outputs the acceleration / deceleration processing result to either the virtual Y axis control unit 41 or the axis data output unit 42 based on the switching signal from the virtual Y axis control switching processing unit 39.
- the virtual Y-axis control switching processing unit 39 connects the acceleration / deceleration processing unit 43 and the virtual Y-axis control unit 41 in the virtual Y-axis control mode in which the virtual Y-axis control mode signal of the common area 345 is ON.
- the acceleration / deceleration processing unit 43 and the axis data output unit 42 are connected in a control mode other than the virtual Y-axis control mode in which the virtual Y-axis control mode signal of the common area 345 is OFF. Switch 44 is switched.
- the virtual Y-axis control unit 41 executes control processing in the virtual Y-axis control mode. Specifically, the X-axis, Y-axis, C-axis, and H-axis commands subjected to acceleration / deceleration processing are converted into X-axis, C-axis, and H-axis commands in the machine coordinate system, and the converted X-axis, C-axis, and H-axis are converted. The command is input to the axis data output unit 42. In the virtual Y axis control mode, the X axis, the H axis, and the C axis normally operate in conjunction with each other.
- the virtual Y-axis control unit 41 includes a virtual Y-axis control command axis determination unit 414, a virtual Y-axis control processing unit 411, and a virtual Y-axis control command synthesis unit 412.
- the virtual Y-axis control command axis determination unit 414 refers to the machining program 343 stored in the storage unit 34 for each block (one row), and the command for each block (each row) is received. It is determined whether the command is an XY axis movement amount command or an H axis or C axis single rotation amount command.
- the virtual Y-axis control command axis determination unit 414 is an acceleration / deceleration processing unit when the command by the machining program 343 is an XY-axis movement amount command (for example, a movement amount command by “G00 X20 Y50” shown in FIG. 5).
- the virtual Y-axis control processing unit 411 is supplied to the virtual Y-axis control processing unit 411 and the H-axis or C-axis single rotation amount command (for example, “T1111” or “C180” shown in FIG. 5).
- the H-axis or C-axis single rotation amount command input from the acceleration / deceleration processing unit 43 is supplied to the virtual Y-axis control command combining unit 412.
- the virtual Y-axis control command axis determination unit 414 receives the command of the machining program 343 created in the program coordinate system for the first movement amount command including the movement amount command of the XY axis for each block.
- the second movement amount command including the H-axis single movement amount command and / or the C-axis single movement amount command, and the first movement amount command is supplied to the virtual Y-axis control processing unit 411, and the second movement amount The command is supplied to the virtual Y-axis control command combining unit 412.
- the virtual Y-axis control processing unit 411 converts the XY-axis movement amount command input from the acceleration / deceleration processing unit 43 into a movement position command (X1, Y1), and the converted movement position
- the coordinates of the command are converted into an X-axis movement position command, an H-axis rotation position command, and a C-axis rotation position command, which are movement position commands in the machine coordinate system as the real coordinate system, and the X-axis, H-axis, C-axis
- Each axis movement position (Xr, Hr, Cr) is obtained.
- the virtual Y-axis control processing unit 411 uses the XY movement position calculated last time and the XY-axis movement amount command input from the acceleration / deceleration processing unit 43 to determine the current XY. Calculate the moving position. Then, the virtual Y-axis control processing unit 411 converts the calculated current XY movement position according to the following equations 1 to 3, and obtains the movement position (Xr1, Hr1, Cr1) in the machine coordinate system.
- the virtual Y-axis control processing unit 411 obtains a difference between the previous movement position (Xr0, Hr0, Cr0) in the machine coordinate system and the current movement position (Xr1, Hr1, Cr1), thereby obtaining a difference in the machine coordinate system.
- the virtual Y-axis control processing unit 411 supplies the X-axis movement amount command ( ⁇ Xr1) to the axis data output unit 42, and outputs the H-axis rotation amount command ( ⁇ Hr1) and the C-axis rotation amount command ( ⁇ Cr1). This is supplied to the virtual Y-axis control command synthesis unit 412.
- the virtual Y-axis control command combining unit 412 receives the H-axis and / or C-axis single rotation amount command ( ⁇ H2 and / or ⁇ C2) input from the acceleration / deceleration processing unit 43 and the virtual Y-axis control processing unit 411.
- the H-axis rotation amount command ( ⁇ Hr1) and the C-axis rotation amount command ( ⁇ Cr1) after coordinate conversion are combined.
- the virtual Y-axis control command combining unit 412 supplies the combined H-axis rotation amount command ⁇ Hr and C-axis rotation amount command ⁇ Cr to the axis data output unit 42.
- the axis data output unit 42 supplies the X axis movement amount command ⁇ Xr1 supplied from the virtual Y axis control processing unit 411 to the drive unit 90 and rotates the H axis supplied from the virtual Y axis control command combining unit 412.
- An amount command ⁇ Hr and a C-axis rotation amount command ⁇ Cr are supplied to the drive unit 90.
- FIG. 3 is a flowchart of the operation of the numerical control apparatus according to the first embodiment.
- step S1 the analysis processing unit 37 calculates tool correction amounts (Tx, Ty) (see FIG. 6) and stores them in the storage unit 34.
- the analysis processing unit 37 performs an analysis process of the machining program 343, adds the tool correction amount (Tx, Ty) to the analysis result, and passes it to the interpolation processing unit 38.
- step S2 the interpolation processing unit 38 receives the analysis result (position command) from the analysis processing unit 37, performs an interpolation process on the analysis result (position command), and supplies the result of the interpolation processing to the acceleration / deceleration processing unit 43.
- step S ⁇ b> 3 the acceleration / deceleration processing unit 43 performs acceleration / deceleration processing on the supplied interpolation processing result, and supplies the acceleration / deceleration processing result to the switch 44.
- step S4 the virtual Y-axis control switching processing unit 39 determines whether or not to perform the virtual Y-axis control determination process based on the virtual Y-axis control mode signal in the common area 345. That is, when the virtual Y-axis control switching processing unit 39 is in the virtual Y-axis control mode (“Yes” in step S4), the process proceeds to step S10. If the virtual Y-axis control switching processing unit 39 is in a control mode other than the virtual Y-axis control mode (“No” in step S4), the process proceeds to step S17.
- step S10 the virtual Y-axis control unit 41 performs a virtual Y-axis control mode process. Specifically, the following steps S11 to S17 are performed.
- the virtual Y axis control command axis determination unit 414 refers to the machining program 343 stored in the storage unit 34 for each block, and whether the command of each block is a movement amount command of the XY axes. It is also determined whether it is a single rotation amount command for the H axis and / or the C axis. If the command by the machining program 343 is a movement amount command of the XY axis (for example, a movement amount command to “X20 Y50” shown in FIG. 5), the virtual Y axis control command axis determination unit 414 An axis movement amount command is supplied to the virtual Y-axis control processing unit 411, and the process proceeds to step S12.
- the command by the machining program 343 is a single rotation amount command for the H axis and / or the C axis (for example, a single rotation amount command by “T1111” or “C180” shown in FIG. 5). If there is, the H axis and / or C axis single rotation amount command is supplied to the virtual Y axis control command combining unit 412 and the process proceeds to step S16.
- step S12 the virtual Y-axis control processing unit 411 performs a program coordinate position calculation process.
- the virtual Y-axis control processing unit 411 uses the XY-axis movement amount command input from the acceleration / deceleration processing unit 43 and the previous XY movement position to determine the current movement position (X-axis coordinate “ X1 ", Y-axis coordinate” Y1 ").
- step S13 the virtual Y axis control processing unit 411 performs coordinate conversion processing (program coordinate ⁇ machine coordinate conversion processing). That is, the virtual Y-axis control processing unit 411 converts the current movement position (X1, Y1) in the program coordinate system by the above-described equations 1 to 3, and moves the movement position (Xr1, Hr1, Cr1) in the machine coordinate system. Ask for.
- the virtual Y-axis control processing unit 411 supplies the X-axis movement amount command ( ⁇ Xr1) to the axis data output unit 42 and advances the process to step S17, and also rotates the H-axis rotation amount command ( ⁇ Hr1) and the C-axis rotation.
- the quantity command ( ⁇ Cr1) is supplied to the virtual Y-axis control command combining unit 412 and the process proceeds to step S16.
- step S16 the virtual Y-axis control command combining unit 412 uses the H-axis rotation amount command ⁇ Hr2 generated by the virtual Y-axis control processing unit 411 as shown in Equation 4 above. Combined with ⁇ Hr1, an H-axis rotation amount command ⁇ Hr is generated. Similarly, the virtual Y-axis control command synthesizing unit 412 receives the C-axis rotation amount command ⁇ Cr2 generated by the virtual Y-axis control processing unit 411 as shown in Equation 5 above. To generate a C-axis rotation amount command ⁇ Cr. The virtual Y-axis control command combining unit 412 supplies the combined H-axis rotation amount command ⁇ Hr and C-axis rotation amount command ⁇ Cr to the axis data output unit 42.
- step S17 the axis data output unit 42 performs axis data output processing. That is, the axis data output unit 42 supplies the X-axis movement amount command ⁇ Xr1 supplied from the virtual Y-axis control processing unit 411 to the drive unit 90 and the H-axis supplied from the virtual Y-axis control command combining unit 412. Rotation amount command ⁇ Hr and C axis rotation amount command ⁇ Cr are supplied to the drive unit 90.
- FIG. 4 is a flowchart showing a processing procedure for the workpiece W using the numerical control device 1.
- FIG. 5 is a diagram showing the description contents in the machining program 343 stored in the storage unit 34 of the numerical controller 1.
- FIG. 6 is a diagram illustrating the operation of the turret 905 and the workpiece W in accordance with the workpiece W machining procedure. In the following, the position on the Z-axis is maintained in a fixed state in a series of processes, and the Z-axis feed operation is driven after the series of processes is completed.
- step S21 shown in FIG. 4 the numerical control apparatus 1 causes the tool 9051 for milling to be replaced with a tool to be used for machining in accordance with the description of “N100 T1010” in the machining program 343 shown in FIG.
- step S22 the numerical controller 1 selects the C-axis mode according to the description of “N102 G00 C0” in the machining program 343.
- the virtual plane is a plane formed by the X axis and the virtual Y axis, and is a plane corresponding to the XY plane in the program coordinate system.
- step S24 the numerical controller 1 enables the virtual Y-axis control mode according to the description of “N104 M111” in the machining program 343.
- step S129 the numerical controller 1 inverts the workpiece W and positions the workpiece W according to the description of “N109 G00 C180” in the machining program 343.
- the virtual Y-axis control command axis determination unit 414 supplies the C-axis single rotation amount command to the virtual Y-axis control command combining unit 412 because the command by “N109 G00 C180” is the C-axis single rotation amount command.
- the virtual Y-axis control command combining unit 412 outputs the C-axis single rotation amount command to the axis data output unit 42 as the C-axis rotation amount command ( ⁇ Cr).
- the C-axis servo control unit 94 drives the C-axis servo motor 904 to rotate. Thereby, as shown by S129 in FIG. 6, the workpiece W is rotated and inverted independently (positioned at C180 on the program coordinates).
- step S33 the numerical controller 1 positions the turret 905 and the workpiece W so that the main axis direction of the tool 9051 and the X-axis direction on the virtual plane are parallel to each other according to the description of “N113 G00 Y0” in the machining program 343. I do.
- step S135 the numerical controller 1 causes the tool 9052 for drilling to be replaced with a tool to be used for machining according to the description of “N114 T1111” in the machining program 343.
- the virtual Y-axis control command axis determination unit 414 supplies the H-axis single rotation amount command to the virtual Y-axis control command combining unit 412 because the command by “T1111” is the H-axis single rotation amount command.
- the virtual Y-axis control command synthesis unit 412 outputs the H-axis single rotation amount command to the axis data output unit 42 as the H-axis rotation amount command ( ⁇ Hr).
- the H-axis servo control unit 92 drives the H-axis servo motor 902 to rotate. Thereby, as shown by S135 in FIG. 6, the turret 905 is rotated alone to perform the tool changing operation.
- step S137 the analysis processing unit 37 causes the tool 9052 to perform drilling according to the description of “N116 G83 X5 D40 H3 F100” in the machining program 343.
- step S34 the analysis processing unit 37 cancels the virtual Y-axis control mode according to the description of “N118 M101” in the machining program 343.
- the virtual Y-axis control unit 841 performs the virtual Y-axis control command axis determination unit 414 and the virtual Y-axis control command synthesis shown in FIG.
- step S27 is performed between the milling of the workpiece on one side of the workpiece W (step S26) and the milling of the workpiece on the other side of the workpiece W (step S32).
- Step S31 needs to be performed.
- step S27 the numerical controller 800 follows the description of “N19 G00 Y0” in the machining program 343 shown in FIG. 15 so that the main axis direction of the tool 9051 is parallel to the X axis direction in the virtual plane. 905 and the workpiece W are positioned.
- step S28 the numerical controller 800 cancels the virtual Y-axis control mode according to the description of “N20 M10” in the machining program 343.
- step S29 the numerical controller 800 reverses and positions the workpiece W according to the description of “N21 G00 C180” in the machining program 343.
- step S30 the numerical controller 800 re-enables the virtual Y-axis control mode according to the description of “N22 M11” in the machining program 343.
- step S31 the numerical controller 800 moves the tool 9051 to the machining start position according to the description of “N23 G00 X20 Y-50” in the machining program 343.
- step S26 when the machining in the virtual Y-axis control mode is continued while positioning the workpiece axis (C axis), the workpiece axis (C axis) every time one machining (step S26) is completed. ), The tool direction and the virtual plane X-axis direction are made parallel (step S27), the virtual Y-axis control mode is canceled (step S28), and the workpiece axis (C-axis) is positioned after the cancellation. Is performed (step S29), and the virtual Y-axis control mode is enabled again (step S30). For this reason, it exists in the tendency for the cycle time of a process to become long.
- the virtual Y-axis control unit 41 includes the virtual Y-axis control command axis determination unit 414 and the virtual Y-axis control command synthesis unit 412. Yes. That is, when the command by the machining program 343 is the C axis single rotation amount command, the virtual Y axis control command axis determination unit 414 sends the C axis single rotation amount command to the C via the virtual Y axis control command combining unit 412. This is supplied to the shaft data output unit 42 as a shaft rotation amount command.
- step S129 shown in FIG. 4 can be performed instead of the process of steps S27 to S31 shown in FIG. Thereby, since the number of steps in a series of processing can be reduced, the cycle time of processing can be reduced.
- the virtual Y axis control command axis determination unit 414 uses the H axis single rotation amount command as a virtual Y axis control command. This is supplied to the axis data output unit 42 as a rotation amount command for the H axis via the synthesis unit 412. Thereby, since the turret 905 can be rotated independently during the virtual Y-axis control mode, the tools 9051 and 9052 can be exchanged without canceling the virtual Y-axis control mode. That is, as shown in FIG.
- step S135) after the milling (step S32), the tool change (step S135) can be performed without canceling the virtual Y-axis control mode, and the virtual Y-axis control mode is enabled again. Therefore, it is possible to perform the drilling process (step S137) immediately. Thereby, since the number of steps in a series of processing can be reduced, the cycle time of processing can be reduced.
- Embodiment 2 the numerical controller 1 according to the second embodiment will be described. Below, it demonstrates focusing on a different part from Embodiment 1.
- FIG. 1 the numerical controller 1 according to the second embodiment will be described. Below, it demonstrates focusing on a different part from Embodiment 1.
- the numerical control apparatus 1 changes the tool (step S135 shown in FIG. 4) and moves the tool 9052 to the machining start position (see FIG. 4).
- Step S136) shown in FIG. 7 is performed in parallel in the same block (Step S235 shown in FIG. 7) in the machining program 343.
- FIG. 7 is a flowchart illustrating a processing procedure of the workpiece W using the numerical control device 1 according to the second embodiment.
- FIG. 8 is a diagram illustrating the description contents in the machining program 343 stored in the storage unit 34 of the numerical control device 1 according to the second embodiment.
- FIG. 9 is a diagram illustrating operations of the turret 905 and the workpiece W according to the workpiece W machining procedure according to the second embodiment.
- step S235 shown in FIG. 7 the process of step S135 shown in FIG. 4 and the process of step S136 are performed in parallel. That is, in step S235, the numerical controller 1 replaces the tool to be used for machining with the tool 9052 for drilling according to the description of “N211 G00 X20 Y10 T1111” in the machining program 343 shown in FIG. 9052 is moved to the machining start position.
- the virtual Y-axis control command axis determination unit 414 performs the virtual Y-axis control processing on the XY-axis movement amount command because the command by “G00 X20 Y10” is the XY-axis movement amount command. Part 411.
- the virtual Y-axis control processing unit 411 uses the XY-axis movement amount command in the program coordinate system, the X-axis movement amount command ( ⁇ Xr1) in the machine coordinate system, the H-axis rotation amount command ( ⁇ Hr1), and C A shaft rotation amount command ( ⁇ Cr1) is generated.
- the virtual Y-axis control processing unit 411 supplies the X-axis movement amount command ( ⁇ Xr1) to the axis data output unit 42, and outputs the H-axis rotation amount command ( ⁇ Hr1) and the C-axis rotation amount command ( ⁇ Cr1). This is supplied to the virtual Y-axis control command synthesis unit 412.
- the virtual Y-axis control command axis determination unit 414 synthesizes the H-axis single rotation amount command ( ⁇ H2) with the virtual Y-axis control command synthesis because the command by “T1111” is the H-axis single rotation amount command ( ⁇ H2).
- the virtual Y-axis control command synthesizing unit 412 combines the H-axis single rotation amount command ⁇ Hr2 with the H-axis rotation amount command ⁇ Hr1 generated by the virtual Y-axis control processing unit 411, as shown in Equation 4 above. An H-axis rotation amount command ⁇ Hr is generated.
- the virtual Y-axis control command combining unit 412 supplies the combined H-axis rotation amount command ⁇ Hr to the axis data output unit 42.
- the C-axis rotation amount command ⁇ Cr is generated, and the generated C-axis rotation amount command ⁇ Cr is supplied to the axis data output unit 42.
- the tool can be positioned at the machining start position while changing the tool.
- the virtual Y-axis control command combining unit 412 generates the H-axis single rotation amount command by the virtual Y-axis control processing unit 411 according to the XY-axis movement amount command.
- the H-axis rotation amount command is generated by combining with the H-axis rotation amount command, and is supplied to the axis data output unit 42.
- the tool can be moved to the machining start position of the workpiece W according to the XY axis movement amount command while the turret 905 is rotated independently according to the H axis single rotation amount command and the tool is changed. . That is, the tool change (step S135 shown in FIG.
- step S136 shown in FIG. 4 the movement of the tool 9052 to the machining start position of the workpiece W (step S136 shown in FIG. 4) are the same block in the machining program 343 (step S235 shown in FIG. 7). ) In parallel. Thereby, since the number of steps in a series of processing can be further reduced, the processing cycle time can be further reduced.
- Embodiment 3 the numerical controller 1 according to the third embodiment will be described. Below, it demonstrates focusing on a different part from Embodiment 1.
- FIG. 1 the numerical controller 1 according to the third embodiment.
- the numerical control apparatus 1 performs tool change (step S135 shown in FIG. 4) and positioning of the workpiece W (processing similar to step S129 shown in FIG. 4).
- the movement of the tool 9052 to the machining start position of the workpiece W (step S136 shown in FIG. 4) is performed in parallel in the same block (step S335 shown in FIG. 10) in the machining program 343.
- FIG. 10 is a flowchart illustrating the processing procedure of the workpiece W using the numerical control device 1 according to the third embodiment.
- FIG. 11 is a diagram illustrating the description contents in the machining program 343 stored in the storage unit 34 of the numerical controller 1 according to the third embodiment.
- FIG. 12 is a diagram illustrating operations of the turret 905 and the workpiece W according to the workpiece W machining procedure according to the third embodiment.
- step S335 shown in FIG. 10 in addition to the processing in step S135 and the processing in step S136 shown in FIG. 4, the workpiece W is positioned in parallel. That is, in step S335, the numerical controller 1 causes the tool 9052 for drilling to be replaced with a tool to be used for machining according to the description of “N311 G00 X20 Y10 C-180 T1111” in the machining program 343 shown in FIG. While moving the tool 9052 to the machining start position, the workpiece W is positioned.
- the virtual Y-axis control command axis determination unit 414 performs the virtual Y-axis control processing on the XY-axis movement amount command because the command by “G00 X20 Y10” is the XY-axis movement amount command. Part 411.
- the virtual Y-axis control processing unit 411 uses the XY-axis movement amount command in the program coordinate system, the X-axis movement amount command ( ⁇ Xr1) in the machine coordinate system, the H-axis rotation amount command ( ⁇ Hr1), and C A shaft rotation amount command ( ⁇ Cr1) is generated.
- the virtual Y-axis control processing unit 411 supplies the X-axis movement amount command ( ⁇ Xr1) to the axis data output unit 42, and outputs the H-axis rotation amount command ( ⁇ Hr1) and the C-axis rotation amount command ( ⁇ Cr1). This is supplied to the virtual Y-axis control command synthesis unit 412.
- the virtual Y-axis control command axis determination unit 414 synthesizes the C-axis single rotation amount command ( ⁇ C2) with the virtual Y-axis control command synthesis because the command by “C180” is the C-axis single rotation amount command ( ⁇ C2).
- the virtual Y-axis control command combining unit 412 combines the C-axis single rotation amount command ⁇ Cr2 with the C-axis rotation amount command ⁇ Cr1 generated by the virtual Y-axis control processing unit 411, as shown in Equation 5 above.
- the C axis rotation amount command ⁇ Cr is generated.
- the virtual Y-axis control command combining unit 412 supplies the combined C-axis rotation amount command ⁇ Cr to the axis data output unit 42.
- the virtual Y-axis control command axis determination unit 414 synthesizes the H-axis single rotation amount command ( ⁇ H2) with the virtual Y-axis control command synthesis because the command by “T1111” is the H-axis single rotation amount command ( ⁇ H2).
- the virtual Y-axis control command synthesizing unit 412 combines the H-axis single rotation amount command ⁇ Hr2 with the H-axis rotation amount command ⁇ Hr1 generated by the virtual Y-axis control processing unit 411, as shown in Equation 4 above. Then, an H-axis rotation amount command ⁇ Hr is generated.
- the virtual Y-axis control command combining unit 412 supplies the combined H-axis rotation amount command ⁇ Hr to the axis data output unit 42.
- the tool W can be changed and the workpiece W can be positioned while being positioned at the machining start position.
- the virtual Y-axis control command combining unit 412 generates the H-axis single rotation amount command by the virtual Y-axis control processing unit 411 in accordance with the XY-axis movement amount command.
- the H-axis rotation amount command is generated by combining with the H-axis rotation amount command, and is supplied to the axis data output unit 42.
- the virtual Y-axis control command synthesizing unit 412 sends the C-axis single rotation amount command to the C-axis rotation amount command generated by the virtual Y-axis control processing unit 411 according to the XY-axis movement amount command.
- a rotation amount command for the C axis is generated and supplied to the axis data output unit 42.
- the workpiece is independently rotated according to the C-axis single rotation amount command, and the workpiece is positioned.
- the tool can be moved to the machining start position of the workpiece in accordance with the axis movement amount command. That is, tool change (step S135 shown in FIG. 4), positioning of the workpiece W (processing similar to step S129 shown in FIG. 4), and movement of the tool 9052 to the machining start position (step shown in FIG. 4).
- S136 is performed in parallel in the same block (step S335 shown in FIG. 10) in the machining program 343.
- the numerical control device is suitable for workpiece machining by virtual Y-axis control.
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Abstract
Description
実施の形態1にかかる数値制御装置1の概略構成について図1及び図2を用いて説明する。図1(a)及び図1(b)は、それぞれ、数値制御装置1により制御される工作機械900の外観構成を示す斜視図及び正面図である。図2は、数値制御装置1の構成を示すブロック図である。
次に、実施の形態2にかかる数値制御装置1について説明する。以下では、実施の形態1と異なる部分を中心に説明する。
次に、実施の形態3にかかる数値制御装置1について説明する。以下では、実施の形態1と異なる部分を中心に説明する。
10 表示部
20 入力操作部
30 制御演算部
31 画面処理部
32 入力制御部
33 データ設定部
34 記憶部
35 機械制御信号処理部
36 PLC
37 解析処理部
38 補間処理部
39 仮想Y軸制御切換処理部
41 仮想Y軸制御部
42 軸データ出力部
43 加減速処理部
44 スイッチ
90 駆動部
91 X軸サーボ制御部
92 H軸サーボ制御部
93 Z軸サーボ制御部
94 C軸サーボ制御部
342 工具補正データ
343 加工プログラム
344 画面表示データ
345 共有エリア
351 仮想Y軸制御モード信号処理部
411 仮想Y軸制御処理部
412 仮想Y軸制御指令合成部
414 仮想Y軸制御指令軸判定部
800 数値制御装置
830 制御演算部
841 仮想Y軸制御部
900 工作機械
901 サーボモータ
902 サーボモータ
903 サーボモータ
904 サーボモータ
905 タレット
906 ワーク支持部
9051 工具
9052 工具
W ワーク
Claims (6)
- 複数の工具が取り付けられるタレットを移動させるX軸と、前記タレットを回転させるH軸と、ワークを回転させるC軸とを有し、前記X軸に直交するY軸を有さない工作機械を制御する数値制御装置であって、
加工プログラム中のX-Y軸移動指令をX-H-C座標系での指令に変換し、変換した指令に従ってX軸、H軸およびC軸を連動駆動する仮想Y軸制御モード中に、前記H軸の単独回転指令に従って前記H軸を単独で回転させ、工具交換を行う手段を備えた
ことを特徴とする数値制御装置。 - 複数の工具が取り付けられるタレットを移動させるX軸と、前記タレットを回転させるH軸と、ワークを回転させるC軸とを有し、前記X軸に直交するY軸を有さない工作機械を制御する数値制御装置であって、
加工プログラム中のX-Y軸移動指令をX-H-C座標系での指令に変換し、変換した指令に従ってX軸、H軸およびC軸を連動駆動する仮想Y軸制御モード中に、前記C軸の単独回転指令に従って前記C軸を単独で回転させ、前記ワークの位置決めを行う手段を備えた
ことを特徴とする数値制御装置。 - 複数の工具が取り付けられるタレットを移動させるX軸と、前記タレットを回転させるH軸と、ワークを回転させるC軸とを有し、前記X軸に直交するY軸を有さない工作機械を制御する数値制御装置であって、
加工プログラム中のX-Y軸移動指令をX-H-C座標系での指令に変換し、変換した指令に従ってX軸、H軸およびC軸を連動駆動する仮想Y軸制御モード中に、前記X-Y軸の移動指令に従って前記工具を前記ワークの加工開始位置に移動させながら、前記H軸の単独回転指令に従って前記H軸を単独で回転させて工具交換を行う手段を備えた
ことを特徴とする数値制御装置。 - 複数の工具が取り付けられるタレットを移動させるX軸と、前記タレットを回転させるH軸と、ワークを回転させるC軸とを有し、前記X軸に直交するY軸を有さない工作機械を制御する数値制御装置であって、
加工プログラム中のX-Y軸移動指令をX-H-C座標系での指令に変換し、変換した指令に従ってX軸、H軸およびC軸を連動駆動する仮想Y軸制御モード中に、前記X-Y軸の移動指令に従って前記工具を前記ワークの加工開始位置に移動させながら、前記C軸の単独回転指令に従って前記C軸を単独で回転させて前記ワークの位置決めを行う手段を備えた
ことを特徴とする数値制御装置。 - 複数の工具が取り付けられるタレットを移動させるX軸と、前記タレットを回転させるH軸と、ワークを回転させるC軸とを有し、前記X軸に直交するY軸を有さない工作機械を制御する数値制御装置であって、
加工プログラム中のX-Y軸移動指令をX-H-C座標系での指令に変換し、変換した指令に従ってX軸、H軸およびC軸を連動駆動する仮想Y軸制御モード中に、前記X-Y軸の移動指令に従って前記工具を前記ワークの加工開始位置に移動させながら、前記H軸の単独回転指令に従って前記H軸を単独で回転させる工具交換と前記C軸の単独回転指令に従って前記C軸を単独で回転させる前記ワークの位置決めとを行う手段を備えた
ことを特徴とする数値制御装置。 - 複数の工具が取り付けられるタレットを移動させるX軸と、前記タレットを回転させるH軸と、ワークを回転させるC軸とを有し、前記X軸に直交するY軸を有さない工作機械を制御する数値制御装置であって、
プログラム座標系で作成された加工プログラムの指令を、1ブロック毎に、X軸移動指令及びY軸移動指令の少なくとも一方を含む第1移動指令と、H軸単独移動指令及びC軸移動指令の少なくとも一方を含む第2移動指令とに分離する分離部と、
前記第1移動指令をX-H-C軸から成る機械座標系の指令に変換する座標変換部と、
前記変換されたH軸移動指令と前記分離されたH軸単独移動指令とを合成し、前記変換されたC軸移動指令と前記分離されたC軸単独移動指令とを合成する合成部と、
前記変換されたX軸移動指令、前記合成されたH軸移動指令およびC軸移動指令に従って前記X軸、H軸、C軸を駆動制御する駆動部と、
を備えることを特徴とする数値制御装置。
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DE112011104832.7T DE112011104832B4 (de) | 2011-02-03 | 2011-02-03 | Numerische-Steuerung-Vorrichtung |
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JPWO2021230202A1 (ja) * | 2020-05-15 | 2021-11-18 | ||
WO2021230202A1 (ja) * | 2020-05-15 | 2021-11-18 | ファナック株式会社 | 数値制御装置及び制御方法 |
JP7401661B2 (ja) | 2020-05-15 | 2023-12-19 | ファナック株式会社 | 数値制御装置及び制御方法 |
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US9557728B2 (en) | 2017-01-31 |
TWI457736B (zh) | 2014-10-21 |
DE112011104832B4 (de) | 2022-12-01 |
TW201234149A (en) | 2012-08-16 |
US20140114465A1 (en) | 2014-04-24 |
JP5014515B1 (ja) | 2012-08-29 |
JPWO2012105028A1 (ja) | 2014-07-03 |
DE112011104832T5 (de) | 2013-10-31 |
CN103370661A (zh) | 2013-10-23 |
CN103370661B (zh) | 2015-12-09 |
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