JP2018055211A - Numerical control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a numerical control device capable of easily executing management of a control program.SOLUTION: The numerical control device stores, in a flush memory, a control program, and a version including a first version showing a mounting function mounted on the control program and a second version showing an effective function being effective among mounting functions mounted on the control program. The numerical control device receives a command (S53). The numerical control device determines whether or not processing corresponding to the received command can be executed by the effective function on the basis of the second version (S59). The numerical control device executes processing on the basis of the effective function (S61) when it is determined that the processing can be executed by the effective function (S59: YES).SELECTED DRAWING: Figure 6

Description

  The present invention relates to a numerical controller.

  Various directions for managing the version of the control program of the numerical controller have been proposed. Patent Document 1 discloses a method for updating a control program of a controller. The distribution server stores a plurality of update programs for each version of the control program. The update program includes modules in which functions are added and modified. The distribution server receives the version information of the control program of the controller from the central management apparatus. The distribution server specifies an update program that is newer than the received version information and has a function added and modified for the module executed by the controller, and transmits the update program to the central management apparatus. The central management apparatus transmits the received update program to the controller. Based on the received update program, the controller executes the module with the added or modified function.

Japanese Patent No. 4799114

  The version of the update program that the distribution server transmits to the controller via the central management apparatus is not limited to the latest version. Depending on the module executed by the controller, the distribution server may send an old version update program. The reason is that there are times when a module whose function is added or modified in the latest version of the update program is executed using a device that the controller does not have. Therefore, the distribution server needs to store not only the latest version of the update program but also the old version of the update program. Therefore, since a plurality of update programs are stored, the management of the update programs may be complicated.

  An object of the present invention is to provide a numerical control device that can easily manage a control program.

  A numerical control device according to the present invention is a numerical control device that is driven based on a control program, a first storage unit that stores the control program, and a first version that indicates an implementation function implemented in the control program, And the 2nd storage part which memorizes the version containing the 2nd version which shows an effective function among the mounting functions mounted in the control program, the 1st reception part which receives directions, and the 1st reception part Whether or not the process corresponding to the given command can be executed by the effective function is determined by the effective function by the first determining means and the first determining means for determining based on the second version. And executing means for executing the process based on the effective function when it is determined that the process can be executed.

  The numerical controller stores the control program, the first version, and the second version in the storage unit. The numerical controller determines whether the process corresponding to the received command can be executed by the effective function based on the second version. When it is determined that the numerical control device can be executed, the numerical control device executes processing based on the effective function. As described above, the numerical control device stores the first version and the second version as the version of one control program, thereby restricting the execution of functions other than the effective functions among the implementation functions of the control program. Therefore, the numerical control device does not need to store a plurality of control programs for each effective function. For this reason, the numerical control device can easily manage the control program.

  In the present invention, when the first determination unit determines that the process cannot be executed by the effective function, the first determination unit may further include a notification unit that notifies the user. At this time, the numerical control device can notify the user that the process corresponding to the command cannot be executed by the effective function.

  In the present invention, a second receiving means for receiving an update control program, a first update version indicating a mounting function implemented in the update control program received by the second receiving means, and implemented in the update control program The acquisition means for acquiring a second updated version indicating an effective function among the implemented functions and the update control program received by the second reception means are stored as the control program in the first storage unit. Control means, first update means for updating the first version stored in the second storage section to the first update version acquired by the acquisition means, and the second version stored in the second storage section A second determination means for determining whether or not an instruction to update is received, and the second determination means Second update means for updating the second version stored in the second storage unit to the second update version acquired by the acquisition means when it is determined that an instruction to update the application has been received, and the second reception And means for prohibiting updating of the second version stored in the second storage unit when it is determined that the instruction to update the second version is not accepted by the means. At this time, the numerical controller can select whether to update the second version when updating the control program to the update control program. When it is determined that the instruction to update the second version has been received, the numerical control device updates the second version with the second update version of the update control program. On the other hand, when the numerical controller determines that it does not accept the instruction to update the second version, the numerical controller prohibits the update of the second version. Thereby, the numerical control device can maintain the effective function as it is even when the control program is updated by the update control program to which the mounting function is added.

  In the present invention, a third receiving unit that receives an instruction to update the second version stored in the second storage unit to the first version, and when the instruction is received by the third receiving unit, And third update means for updating the second version stored in the section to the first version. At this time, the numerical control device can match the mounting function with the effective function. Therefore, the user can cause the numerical control device to execute processing using all the mounting functions.

  In the present invention, the version is a value corresponding to the mounting function, the first version indicated by a first value increasing in ascending order with the addition of the mounting function, and a second less than or equal to the first value. The second version indicated by a value, wherein the first determination means specifies the implementation function corresponding to the first version of the second value as the effective function indicated by the second version, and specifies It may be determined whether the process can be executed by the effective function. At this time, the numerical controller can manage the first version and the second version by a simple method.

1 is a perspective view of a machine tool 1. FIG. 2 is a block diagram showing an electrical configuration of the numerical control device 40 and the machine tool 1. The figure explaining the version and table 44A. The flowchart of a version setting process. The flowchart of a version change process. The flowchart of command execution processing.

  Embodiments of the present invention will be described with reference to the drawings. In the following description, left, right, front, back, and top and bottom indicated by arrows in the figure are used. The left-right direction, the front-rear direction, and the up-down direction of the machine tool 1 are the X-axis direction, the Y-axis direction, and the Z-axis direction of the machine tool 1, respectively. A machine tool 1 shown in FIG. 1 is a composite machine capable of cutting and turning a work material (not shown).

<Structure of machine tool 1>
The structure of the machine tool 1 will be described with reference to FIG. The machine tool 1 includes a base 2, a Y-axis moving mechanism (not shown), an X-axis moving mechanism (not shown), a Z-axis moving mechanism (not shown), a moving body 15, a standing column 5, a spindle head 6, and a spindle (not shown). ), A work material support device 8, a numerical control device 40 (see FIG. 2), and the like. The base 2 includes a gantry 11, a spindle base 12, a right base 13, a left base 14, and the like. The gantry 11 is a substantially rectangular parallelepiped structure that is long in the front-rear direction. The spindle base 12 is formed in a substantially rectangular parallelepiped shape that is long in the front-rear direction, and is provided behind the upper surface of the gantry 11. The right base 13 is provided on the top right of the top surface of the gantry 11. The left base 14 is provided on the upper left side of the top surface of the gantry 11. The right base 13 and the left base 14 each support the work material support device 8 on the upper surface.

  The Y-axis moving mechanism is provided on the upper surface of the spindle base 12 and includes a Y-axis motor 62 (see FIG. 2). The Y-axis moving mechanism moves the substantially flat moving body 15 in the Y-axis direction by driving the Y-axis motor 62. The X-axis moving mechanism is provided on the upper surface of the moving body 15 and includes an X-axis motor 61 (see FIG. 2). The X-axis moving mechanism moves the upright column 5 in the X-axis direction by driving the X-axis motor 61. The upright 5 is movable on the base 2 in the X-axis direction and the Y-axis direction by the Y-axis moving mechanism, the moving body 15 and the X-axis moving mechanism. The Z-axis moving mechanism is provided on the front surface of the upright column 5 and includes a Z-axis motor 63 (see FIG. 2). The Z-axis moving mechanism moves the spindle head 6 in the Z-axis direction by driving the Z-axis motor 63. The spindle (not shown) is provided inside the spindle head 6 and has a tool mounting hole (not shown) in the lower part of the spindle. A tool is mounted in the tool mounting hole. Therefore, the X-axis moving mechanism, the Y-axis moving mechanism, and the Z-axis moving mechanism can move the tool mounted on the main shaft in the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively. The spindle is rotated by a spindle motor 66 (see FIG. 2) provided on the spindle head 6.

  The numerical controller 40 (see FIG. 2) is stored inside the control box. The numerical controller 40 controls the operation of the machine tool 1 based on the NC program. The NC program has a plurality of lines composed of G code and M code commands. The cover that covers the machine tool 1 includes an operation panel 10 (see FIG. 2) on the outer wall surface. The operation panel 10 includes an operation unit 17, a display unit 18, and a connection port 19 (see FIG. 2). The operation unit 17 performs various settings of the numerical control device 40. The display unit 18 displays various screens, messages, alarms, and the like. The connection port 19 includes a terminal for mounting the external storage medium 46A (see FIG. 2). An example of the external storage medium 46A is a USB memory.

  The work material support device 8 is fixed to the upper surfaces of the right base 13 and the left base 14. The work material support device 8 includes an A-axis base 20, a left-side support base 27, a right-side drive mechanism section 28, a rotary base 29, a C-axis drive section 50, and the like. The A-shaft 20 is a plate-like portion having a substantially rectangular shape in plan view with an inclination angle of 0 degree and an upper surface being a horizontal plane. The left support base 27 rotatably supports a support shaft (not shown) parallel to the X-axis direction. The bottom of the left support base 27 is fixed to the upper surface of the left base 14.

  The right drive mechanism 28 is located on the right side of the A-shaft 20. The right drive mechanism 28 stores an A-axis motor 64 (see FIG. 2) and the like inside. When the A-axis motor 64 rotates, the A-shaft 20 rotates around the support shaft. The axis that rotates the A-axis base 20 is the A-axis. The right drive mechanism 28 can rotate the work material about the A axis with respect to the tool. By tilting the A-shaft 20 at an arbitrary angle around the A-axis, the work material can be tilted in an arbitrary direction with respect to the tool mounted on the main shaft.

  The turntable 29 is rotatably provided at the approximate center of the upper surface of the A-shaft 20. The turntable 29 has a disk shape. The C-axis drive unit 50 is connected to the turntable 29 through a hole (not shown) provided on the lower surface of the A-axis base 20 and provided in the approximate center of the A-axis base 20. The C-axis drive unit 50 includes a rotation shaft (not shown), a C-axis motor 65 (see FIG. 2), and the like. The rotation axis extends in a direction orthogonal to the turntable 29. The rotating shaft is fixed to the turntable 29. The C-axis motor 65 is fixed to the rotating shaft. Therefore, when the C-axis motor 65 rotates the rotation shaft, the turntable 29 can rotate around an axis parallel to the Z-axis direction. The axis that rotates the turntable 29 is the C axis. The jig 200 on the upper surface of the turntable 29 fixes the work material. The C-axis drive unit 50 can rotate the workpiece with respect to the tool about the C-axis.

<Electrical configuration>
The electrical configuration of the numerical controller 40 and the machine tool 1 will be described with reference to FIG. The numerical control device 40 includes a CPU 41, a ROM 42, a RAM 43, a flash memory 44, an input / output unit 45, an external interface (I / F) 46, and drive circuits 51 to 56. The machine tool 1 includes an X-axis motor 61, a Y-axis motor 62, a Z-axis motor 63, an A-axis motor 64, a C-axis motor 65, and a main shaft motor 66.

  The CPU 41 controls the operation of the machine tool 1. The CPU 41 executes a control program stored in the flash memory 44. The ROM 42 stores various setting information. The RAM 43 stores various data generated during execution of various processes. The flash memory 44 stores a boot program, a control program, a version, an NC program, and a table 44A (see FIG. 3, which will be described later). The boot program is activated when the numerical controller 40 is powered on. The version is a character string indicating the version number of the control program. Details of the version will be described later. The input / output unit 45 inputs / outputs various signals to / from the drive circuits 51 to 56, the operation unit 17, and the display unit 18. Drive circuit 51 and X-axis motor 61, drive circuit 52 and Y-axis motor 62, drive circuit 53 and Z-axis motor 63, drive circuit 54 and A-axis motor 64, drive circuit 55 and C-axis motor 65, drive circuit 56 and spindle The motors 66 are connected to each other. The drive circuits 51 to 56 output pulse signals output from the CPU 41 to the motors 61 to 66. The motors 61 to 66 are all servo motors. The external I / F 46 is an interface element for reading information from the external storage medium 46 </ b> A attached to the connection port 19. For example, the CPU 41 reads out the control program and version stored in the external storage medium 46 </ b> A by the external I / F 46.

  Hereinafter, the control program and version stored in the flash memory 44 are referred to as “installed program” and “installed version”. The control program and version stored in the external storage medium 46A are referred to as “update program” and “update version”.

<Version>
With reference to FIG. 3, the version will be described with a specific example. The version “WB00.05.001F03.000” in FIG. 3 includes the first common identifier “WB00.”, The first version “05.001”, the second common identifier “F”, and the second version “03.000”. It is a character string arranged in order.

  The first common identifier is a character string that identifies the type of control program. The first common identifier has a common character string (for example, “WA00.”, “WA01.”, “WB00.”, “WB01.”, “WC00.”, Etc.) for each type. The second common identifier is a character for clearly indicating a boundary position between a first version and a second version described later. The second common identifier is common to all versions.

  The first version indicates a function implemented in the control program (hereinafter referred to as “implemented function”). The first version increases in ascending order with the addition of implementation functions. The first version is a character string in which a first main version, a period “.”, And a first subversion are arranged in order from the left. The first main version is a two-digit number on the left side of the period “.”. The first main version increases in ascending order with the addition of relatively large scale functions. The first subversion is a three digit number to the right of the period “.”. The first sub-version increases in ascending order with the addition of relatively small scale functions. The first subversion is reset when the first main version is updated, and returns to “000”.

  A specific example will be described. The first version of the version “WB0.00.0001F03.000” is “05.001”. The first main version is “05”, and the first subversion is “001”. In the control program of the first version “05.001”, the implementation functions “function 1 to function 5, function 5-1” are implemented. At this time, the control program includes program codes for executing the functions 1 to 5 and 5-1.

  In FIG. 3, the first version is updated a plurality of times as follows before becoming “05.001”. Details of the update between the first versions “01.000” to “03.000” are omitted. The first version “04.000” is a control program of the first version “03.000” in which the implementation functions “function 1 to function 3” are implemented, and a larger “function 4” is additionally implemented. Yes (S1). The first version “05.000” is an implementation in which a large-scale “function 5” is added to the control program of the first version “04.000” in which the implementation functions “function 1 to function 4” are implemented. Yes (S2). The first version “05.001” is the first version “05.000” control program in which the implementation functions “function 1 to function 5” are installed, and a smaller “function 5-1” is additionally installed. (S3).

  Each of the mounting functions described above is different in, for example, the types of axes that can be driven in the machine tool 1. Specifically, it is as follows. Function 1 indicates a function for executing a fast-forward command in the X-axis direction. Function 2 indicates a function for executing a fast-forward command in the Y-axis direction. Function 3 indicates a function for executing a fast-forward command in the Z-axis direction. Function 4 indicates a function for executing a fast-forward command in the A-axis direction. Function 5 indicates a function for executing a fast-forward command in the C-axis direction. Function 5-1 shows a function of executing a fast feed command and a cutting feed command. In the above, the fast-forward command is a command to move to the target position at the highest speed for each axis regardless of the movement path of the tool. The cutting feed command is a command to move while following an accurate cutting path.

  When each mounted function is defined as described above, for example, the control program of the first version “05.001” is the X axis (function 1), the Y axis (function 2), the Z axis (function 3), the A axis ( Program codes for executing the fast feed command and the cutting feed command (function 5-1) of each of the function 4) and the C axis (function 5) are included.

  The flash memory 44 stores a table 44A indicating functions added at the time of version update (hereinafter referred to as “additional functions”) for each first version. Based on the table 44A, the CPU 41 can specify an additional function and a mounted function from the first version.

  The second version indicates an effective function (hereinafter referred to as “effective function”) among the installed functions implemented in the control program. The second version is a character string in which the second main version, the period “.”, And the second subversion are arranged in order from the left. The second main version is a two-digit number on the left side of the period “.”. The second subversion is the three digits to the right of the period “.”. The second main version corresponds to the first main version of the first version. The second subversion corresponds to the first subversion of the first version. The effective function indicated by the second version corresponds to the implementation function of the first version having the same character string. The second version is always less than or equal to the first version.

  A specific example will be described. The second version of the version “WB00.05.001F03.000” is “03.000”. The second main version is “03”, and the second subversion is “000”. The implementation functions of the first version having the same character string as “03.000” are function 1 to function 3. Therefore, the effective functions indicated by the second version “03.000” are the functions 1 to 3. That is, the control program of the version “WB00.05.001F03.000” includes the program code for executing the functions 1 to 5 and the function 5-1, but the functions 1 to 3 are executed. Execution of function 4, function 5, and function 5-1 is prohibited.

  Hereinafter, as illustrated in FIG. 2, the first version and the second version of the installed version stored in the flash memory 44 are referred to as “first installed version” and “second installed version”. The first version and the second version of the update version stored in the external storage medium 46A are referred to as “first update version” and “second update version”.

<Correction of control program>
During the process of updating the version, there are times when additional functions are implemented and at the same time, defects in the control program that are known at the time of update are corrected. For example, in the example shown in FIG. 3, the control program is modified in the process of updating the first version from “03.000” to “04.000” (S1). Hereinafter, this correction is referred to as “correction 1”. The control program of the first version “04.000” includes correction 1. In the process of updating the first version from “04.000” to “05.000” (S2), the control program is modified. Hereinafter, this correction is referred to as “correction 2”. The control program of the first version “05.000” includes correction 1 and correction 2. In the process of updating the first version from “05.000” to “05.001” (S3), the control program is modified. Hereinafter, this modification is referred to as “modification 3” and “modification 4”. The control program of the first version “05.001” includes corrections 1 to 4.

  Even when the executable function among the functions implemented in the control program is limited to the effective function indicated by the second version, the above correction is not limited. For this reason, for example, the CPU 41 executes the control program of the version “WB00.05.001F03.000” in a state where “correction 1 to correction 4” are corrected.

<Version setting process>
The version setting process will be described with reference to FIG. When the CPU 41 detects that the external storage medium 46A is attached to the connection port 19 (see FIG. 2), the CPU 41 executes the installed program stored in the address of the program start address called from the boot program in the flash memory 44. To start the version setting process.

  The CPU 41 reads the installed version stored in the flash memory 44 (S11). Hereinafter, the first installed version of the installed version read out in the process of S11 is referred to as “V1a”. The second installed version of the installed version read out in the process of S11 is denoted as “V2a”. The CPU 41 reads the update program stored in the external storage medium 46A (S13). The CPU 41 temporarily stores the read update program in the RAM 43. The CPU 41 reads the updated version stored in the external storage medium 46A (S15). Hereinafter, the first update version of the update version read out in the process of S15 is referred to as “V1b”. The second update version of the update version read out in the process of S15 is denoted as “V2b”.

  The CPU 41 stores the update program read out and stored in the RAM 43 in the process of S13 in the flash memory 44 as a new installed program (S17). At this time, if a new installed program is overwritten, the installed installed program becomes uncontrollable, and is stored in a different area from the installed program. CPU41 advances a process to S23. At this time, the address of the program start address to be called from the boot program that is started when the power is turned on is also changed to the start address of the newly installed program.

  When the CPU 41 determines that the first installed version V1a of the installed version read by the process of S11 is different from the first updated version V1b of the updated version read by the process of S15 (S23: YES), the process is performed in S25. Proceed to The CPU 41 stores the first updated version V1b as a new first installed version in the flash memory 44 instead of V1a, updates the first installed version, does not update the second installed version, and V2a It is maintained as it is (S25). CPU41 advances a process to S29.

  When the CPU 41 determines that the first installed version V1a and the first updated version V1b match (S23: NO), the process proceeds to S27. The CPU 41 does not update the first installed version and maintains V1a, and does not update the second installed version and maintains V2a (S27). CPU41 advances a process to S29.

  The user inputs a predetermined first operation via the operation unit 17 when desiring to update the second installed version. The CPU 41 determines whether the first operation is detected via the operation unit 17 (S29). When it is determined that the first operation has been detected (S29: YES), the CPU 41 advances the process to S35. The CPU 41 determines whether the second installed version V2a and the second updated version V2b read out by the process of S11 are different (S35). When it is determined that the second installed version V2a and the second updated version V2b are different (S35: YES), the process proceeds to S37. The CPU 41 stores the second updated version V2b as a new second installed version in the flash memory 44 instead of V2a, updates the second installed version, does not update the first installed version, and V1a Alternatively, V2a is maintained (S37). The CPU 41 ends the version setting process.

  When the CPU 41 determines that the first operation is not detected via the operation unit 17 (S29: NO), the process proceeds to S39. When the CPU 41 determines that the second installed version V2a and the second updated version V2b match (S35: NO), the process proceeds to S39. The CPU 41 does not update the second installed version and the first installed version and maintains V1a or V2a as it is (S39). The CPU 41 ends the version setting process.

<Version change processing>
The version change process will be described with reference to FIG. When the CPU 41 detects an operation via the operation unit 17, the CPU 41 starts the version change process by executing the installed program stored in the flash memory 44.

  When the user desires to update the second installed version of the installed program version to the first installed version, the user inputs a predetermined second operation via the operation unit 17. The CPU 41 determines whether a second operation has been detected via the operation unit 17 (S71). When determining that the second operation is not detected (S71: NO), the CPU 41 ends the version change process.

  When it is determined that the second operation has been detected (S71: YES), the CPU 41 advances the process to S73. The CPU 41 reads the installed version stored in the flash memory 44 (S73). Hereinafter, the first installed version and the second installed version of the installed version read out in the process of S73 are respectively expressed as “V1a” and “V2a” as in the version setting process (see FIG. 4). The CPU 41 stores the first installed version V1a as a new second installed version in the flash memory 44 instead of V2a, and updates the second installed version (S75). At this time, the first installed version matches the second installed version. The CPU 41 does not update the first installed version and maintains it as V1a (S75). The CPU 41 ends the version change process.

<Command execution processing>
The command execution process will be described with reference to FIG. When the CPU 41 detects an operation start instruction for driving the motors 61 to 66 based on the NC program stored in the flash memory 44 via the operation unit 17, the CPU 41 executes the control program stored in the flash memory 44. Starts command execution processing. It is assumed that all commands included in the NC program can be executed by the implementation function of the control program.

  The CPU 41 reads the installed version stored in the flash memory 44 (S51). Hereinafter, the first installed version and the second installed version of the installed version read out in the process of S51 are respectively expressed as “V1a” and “V2a” as in the version setting process (see FIG. 4). The CPU 41 sets 1 to a variable n (n is an integer) stored in the RAM 43. The CPU 41 acquires a command on the nth line of the NC program stored in the flash memory 44 (S53). Hereinafter, the command in the nth line of the NC program is expressed as “X (n)”. The CPU 41 analyzes the driving method of the motors 61 to 66 corresponding to the command based on the command X (n) acquired by the processing of S53 (S55).

  The CPU 41 determines whether or not the first installed version V1a and the second installed version V2a read by the processing of S51 match (S57). When V1a and V2a match, the mounting function indicated by the first installed version matches the valid function indicated by the second installed version, so that all the mounting functions implemented in the control program can be executed. When the CPU 41 determines that V1a and V2a match (S57: YES), the CPU 41 advances the process to S61.

  When V1a and V2a do not match in S57, since the functions other than the valid functions are included in the control program mounting functions, there are mounting functions whose execution is prohibited. When the CPU 41 determines that V1a and V2a do not match (S57: NO), the process proceeds to S59.

  CPU41 specifies the effective function which a 2nd installed version shows based on table 44A (refer FIG. 3). Specifically, it is as follows. The CPU 41 accumulates additional functions corresponding to each of the first versions having a value equal to or lower than the second installed version V2a in the table 44A. The accumulated additional function indicates an implementation function corresponding to the first installed version having the same value as the second installed version. The CPU 41 identifies the accumulated additional function as an effective function indicated by the second installed version. In other words, the CPU 41 identifies the implementation function of the first installed version having the same value as the second installed version as an effective function indicated by the second installed version. For example, in the example shown in FIG. 3, when the second installed version is “03.000”, the first versions “01.000”, “02.000”, “03.000” below “03.000” in the table 44A. "Function 1" (first version "01.000"), "function 2" (first version "02.000"), "function 3" (first version "03.000") Are identified as effective functions.

  The CPU 41 determines whether or not the command X (n) corresponds to the specified effective function (S59). When the CPU 41 determines that the command X (n) is the specified effective function (S59: YES), the process proceeds to S61. CPU41 drives motors 61-66 by the drive method corresponding to instruction | command X (n) (S61), and advances a process to S65.

  When the CPU 41 determines that the command X (n) is not the effective function specified (S59: NO), the process proceeds to S63. CPU41 displays the alarm screen which notifies a user that instruction | command X (n) cannot be performed on the display part 18 (S63). CPU41 advances a process to S65.

  The CPU 41 determines whether the process of S61 or S63 has been executed for all the commands of the NC program (S65). When the CPU 41 determines that a command that has not been processed remains (S65: NO), the CPU 41 updates n by adding 1 (S67). The CPU 41 returns the process to S53. The CPU 41 acquires a command X (n) corresponding to the updated n (S53), and repeats the process. When the CPU 41 determines that the processing corresponding to all the commands of the NC program has been executed (S65: YES), the command execution processing ends.

<Main functions and effects of this embodiment>
The CPU 41 of the numerical controller 40 stores the installed program and the installed version (first installed version and second installed version) in the flash memory 44. The CPU 41 determines whether the process corresponding to the NC program command X (n) (driving the motors 61 to 66) can be executed by the effective function indicated by the second installed version (S59). When the CPU 41 determines that execution is possible (S59: YES), the CPU 41 executes processing corresponding to the command X (n) (S61). Thus, CPU41 memorize | stores a 1st installed version and a 2nd installed version as an installed version of one installed program, and it is except an effective function among the mounted functions mounted in the control program. Function can be prohibited. Therefore, it is not necessary to hold a plurality of update programs for each effective function. For this reason, the machine tool manufacturer can easily manage the control program.

  Note that even if the CPU 41 prohibits functions other than the effective functions among the functions implemented in the control program, all modifications to the control program are valid. For this reason, CPU41 can prohibit functions other than an effective function among mounted functions, running the latest control program which corrected the malfunction etc.

  When it is determined that the command X (n) cannot be executed by the effective function indicated by the second installed version (S59: NO), the CPU 41 displays an alarm screen on the display unit 18 (S63). At this time, the CPU 41 can notify the user that the process corresponding to the command cannot be executed by the effective function.

  The CPU 41 reads the update program stored in the external storage medium 46A (S13) and stores it in the flash memory 44 as a new installed program (S17). When it is determined that the first operation has been detected (S29: YES), the CPU 41 compares the installed version and the updated version of each second version (V2a, V2b). When the CPU 41 determines that the second installed version V2a and the second updated version V2b are different (S35: YES), the second updated version V2b is used as a new second installed version instead of the V2a. And the second installed version is updated (S37). For this reason, the user can instruct the numerical controller 40 to update the second installed version by inputting the first operation. When it is determined that the first operation is not detected (S29: NO), the CPU 41 maintains the second installed version without updating it (S39). Therefore, the CPU 41 can maintain the effective function as it is even when the installed program is updated by the update program in which the function is additionally installed.

  When it is determined that the second operation has been detected (S71: YES), the CPU 41 stores the first installed version in the flash memory 44 as a new second installed version and updates the second installed version ( S75). At this time, the CPU 41 can match the mounting function with the effective function. Therefore, the user can cause the numerical control device 40 to execute processing using all the mounting functions.

  The first version shows the implementation function of the control program. The first version increases in ascending order with the addition of implementation functions. The second version indicates an effective function among the functions implemented by the control program. CPU41 specifies the implementation function of the 1st installed version equivalent to a 2nd installed version as an effective function which a 2nd installed version shows. At this time, the CPU 41 can manage the first version and the second version by a simple method.

<Modification>
The present invention is not limited to the above embodiment. The numerical controller 40 may store the installed program and the installed version (first installed version and second installed version) in different storage media. For example, the numerical controller 40 may include a plurality of flash memories 44. The numerical controller 40 may store the installed program and the installed version in another flash memory 44. The CPU 41 may execute the command input by the user via the operation unit 17 every time the command is detected, instead of sequentially executing the command X (n) of the NC program.

  When it is determined that the command X (n) cannot be executed by the effective function indicated by the second installed version (S59: NO), the CPU 41 may output a warning sound from a speaker (not shown). The CPU 41 may display a command X (n) that cannot be executed on the display unit 18. The CPU 41 may display a second version on which the instruction X (n) can be executed on the display unit 18.

  In the version setting process, the CPU 41 stores the update program as a new installed program in the flash memory 44 (S17), and then when the user inputs the first operation (S29: YES), the second installed version is displayed. Update (S37). On the other hand, the CPU 41 may execute the update of the second installed version by a process different from the version setting process. For example, the CPU 41 may update the second installed version when the user inputs a predetermined third operation during normal operation.

  When determining that the second operation has been detected (S71: YES), the CPU 41 stores the first installed version in the flash memory 44 as a new second installed version (S75). On the other hand, the user may input the desired second installed version simultaneously with the input of the second operation. The CPU 41 may store the detected second installed version in the flash memory 44 as a new second installed version. Thereby, the user can change the second installed version to an arbitrary value.

  Needless to say, the configuration of the character strings constituting the version (“first common identifier”, “first version”, “second common identifier”, “second version”) is not limited to the above embodiment. For example, the version may include only the first version and the second version without including the first common identifier and the second common identifier.

  The table 44A may indicate the implementation function for each first version. Specifically, in FIG. 3, the implementation functions “function 1” to “function 5” and “function 5-1” may be associated with the first version “05.001” and stored in the table 44. A detailed description of the first versions “01.000” to “05.000” will be omitted. In addition, each mounted function may be a paid optional function that pays a price when used.

<Others>
The flash memory 44 that stores the installed program and the installed version is an example of the “first storage unit” or “second storage unit” in the present invention. The CPU 41 that performs the process of S53 is an example of the “first receiving unit” in the present invention. The CPU 41 that performs the process of S59 is an example of the “first determination unit” in the present invention. The CPU 41 that performs the process of S61 is an example of the “execution unit” in the present invention.
The CPU 41 that performs the process of S63 is an example of the “notification means” in the present invention. The CPU 41 that performs the process of S13 is an example of the “second receiving unit” in the present invention. The CPU 41 that performs the process of S15 is an example of the “acquiring means” in the present invention. The CPU 41 that performs the process of S17 is an example of the “control unit” in the present invention. The CPU 41 that performs the process of S25 is an example of the “first update unit” in the present invention. The CPU 41 that performs the process of S29 is an example of the “second determination unit” in the present invention. The CPU 41 that performs the process of S37 is an example of the “second updating unit” in the present invention. The CPU 41 that performs the process of S39 is an example of the “prohibiting means” in the present invention. The CPU 41 that performs the process of S71 is an example of the “third receiving unit” in the present invention. The CPU 41 that performs the process of S75 is an example of the “third updating unit” in the present invention.

1: Machine tool 40: Numerical control device 41: CPU
44: Flash memory 44A: Table V1a: First installed version V1b: First updated version V2a: Second installed version V2b: Second updated version X (n): Command

Claims (5)

A numerical control device that is driven based on a control program,
A first storage unit for storing the control program;
A second storage unit that stores a version including a first version indicating an implemented function implemented in the control program, and a second version indicating an effective function among the implemented functions implemented in the control program;
First receiving means for receiving a command;
First determination means for determining whether the process corresponding to the command received by the first reception means can be executed by the effective function, based on the second version;
A numerical control apparatus comprising: an execution means for executing the process based on the effective function when the first determination means determines that the process can be executed by the effective function.   The numerical control apparatus according to claim 1, further comprising a notification unit that notifies the user when the first determination unit determines that the process cannot be executed by the effective function. . Second receiving means for receiving an update control program;
A first update version indicating an implemented function implemented in the update control program received by the second accepting unit, and a second update indicating an effective function among the implemented functions implemented in the update control program; An acquisition means for acquiring a version;
Control means for storing the update control program received by the second receiving means in the first storage unit as the control program;
First update means for updating the first version stored in the second storage unit to the first update version acquired by the acquisition means;
Second determination means for determining whether an instruction to update the second version stored in the second storage unit is received;
When it is determined by the second determination means that an instruction to update the second version has been received, the second version stored in the second storage unit is updated to the second update version acquired by the acquisition means. A second update means;
And a prohibiting unit that prohibits updating of the second version stored in the second storage unit when it is determined by the second receiving unit that an instruction to update the second version is not received. The numerical control apparatus according to claim 1 or 2. Third receiving means for receiving an instruction to update the second version stored in the second storage unit to the first version;
3. The apparatus according to claim 1, further comprising: a third updating unit that updates the second version stored in the second storage unit to the first version when the instruction is received by the third receiving unit. 4. The numerical control device according to any one of 3. The version is
The first version indicated by a first value that corresponds to the implemented function and increases in ascending order with the addition of the implemented function;
The second version indicated by a second value less than or equal to the first value,
The first determination means includes
The implementation function corresponding to the first version of the second value is specified as the effective function indicated by the second version, and it is determined whether the process can be executed by the specified effective function. The numerical control apparatus according to claim 1, wherein the numerical control apparatus is characterized in that:

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