Parameter setting device and parameter setting system for machine tool

Abstract

The present invention provides a parameter setting device and a parameter setting system for a machine tool. A personal computer for setting the parameters of the machine tool obtains the adjusted parameters adjusted by the numerical control device or the simulator from a numerical control device or a simulator, compares the axis structure of the machine tool set by the user with the axis structure of the adjusted parameters adjusted by the numerical control device or the simulator, and transforms the axis structure of the adjusted parameters into the axis structure set by the user.

Description

Technical Field

[0001] The invention relates to a parameter setting device and a parameter setting system for a numerical control machine tool. Background Art

[0002] The setting of numerical control machine tools requires setting a huge number of CNC parameters. In order to reduce such a complicated workload, there is now software that generates default parameters. This software is usually installed in a personal computer. When the user sets the mechanical structure of the machine tool on the software, the minimum default parameters required to operate the machine tool are automatically generated. The parameters generated when setting the mechanical structure are called mechanical structure parameters. The mechanical structure parameters include the identification information of the machine, the correspondence between the axes of the numerical control device (1st axis, 2nd axis, ...) and the axes of the machine tool (X axis, Y axis, ...), the identification information of the motor installed on each axis, the type of each axis (linear axis, rotary axis, etc.), etc.

[0003] The software that assists in parameter setting generates default parameters based on the mechanical structure parameters set by the user (for example, refer to Japanese Patent Publication No. 2017-191541). However, the default parameters are not yet complete and need to be adjusted using a real machine or simulator. In the existing parameter adjustment, the user manually sets each parameter.

[0004] In the case of machine tools, the axis configuration of the machine configuration can also be set using software for setting the mechanical configuration. In the axis configuration setting, after initially operating with 4 axes, the machine may then be set with 5 axes, and then axes may be added. At this time, the parameters for axes 1 to 4 have already been adjusted. However, existing tools regenerate default parameters based on the new axis configuration with the added axes, so the existing adjusted parameters are not reflected. Summary of the invention

[0005] In the field of numerical control machine tools, it is desirable to provide a technology for effectively utilizing adjusted parameters.

[0006] A parameter setting device according to one embodiment of the present invention is a parameter setting device for a machine tool having multiple axes, the parameter setting device comprising: a mechanical structure receiving unit that receives a setting of a mechanical structure of the machine tool including an axis structure of multiple axes; an adjusted parameter obtaining unit that obtains adjusted parameters adjusted to be suitable for actual operations of the machine tool; and an axis structure conversion unit that detects a difference between the axis structure of the mechanical structure set by the mechanical structure receiving unit and the axis structure of the adjusted parameters, and converts the axis structure of the adjusted parameters into the axis structure of the mechanical structure set by the mechanical structure receiving unit.

[0007] A parameter setting system according to one embodiment of the present invention is a parameter setting system for a machine tool having multiple axes, and comprises: a mechanical structure receiving unit that receives settings of a mechanical structure of the machine tool including an axis structure of multiple axes; an adjusted parameter obtaining unit that obtains adjusted parameters adjusted to be suitable for actual operations of the machine tool; and an axis structure conversion unit that detects a difference between the axis structure of the mechanical structure set by the mechanical structure receiving unit and the axis structure of the adjusted parameters, and converts the axis structure of the adjusted parameters into the axis structure of the mechanical structure set by the mechanical structure receiving unit.

[0008] A parameter setting method for a machine tool having multiple axes, the parameter setting method comprising the following steps: accepting a user's setting of a mechanical structure of a machine tool including an axis structure of multiple axes; obtaining adjusted parameters adjusted to be suitable for the actual action of the machine tool; detecting the difference between the axis structure of the mechanical structure set by the user and the axis structure of the adjusted parameters, and converting the axis structure of the adjusted parameters into the axis structure of the mechanical structure set by the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a hardware configuration diagram of a personal computer according to one embodiment.

[0010] Figure 2 is a block diagram of a personal computer of one embodiment.

[0011] Figure 3 This is a flowchart showing the operation of the personal computer when the user designates adjusted parameters to be reused.

[0012] Figure 4 This is an example of a screen that converts the axis structure.

[0013] Figure 5 This is a flowchart showing the operation of the personal computer when searching for adjusted parameters.

[0014] Figure 6 This is a diagram showing an example of mechanical configuration parameters before and after the shaft configuration conversion.

[0015] Figure 7 It is a diagram showing the change of parameters before and after the axis structure conversion.

[0016] Figure 8 This is a block diagram of a personal computer according to another embodiment.

[0017] Fig. 9 This is a flowchart showing the operation of the mechanical structure analysis unit. DETAILED DESCRIPTION

[0018] Hereinafter, an embodiment in which the axis setting device of the present disclosure is installed in a personal computer will be described. Figure 1This is a hardware configuration diagram of a personal computer according to one embodiment.

[0019] The personal computer 100 includes a CPU 111 , a ROM 112 , a RAM 113 , a nonvolatile memory 114 , interfaces (INT) 115 , 118 , and 119 , a display unit 70 , and an input unit 30 .

[0020] The CPU 111 is a processor that controls the entire personal computer 100. The CPU 111 reads a system program stored in the ROM 112 via the bus 120, and controls the entire personal computer 100 according to the system program. The RAM 113 temporarily stores temporary calculation data, display data, various data input by the operator via the input unit 30, and the like.

[0021] The nonvolatile memory 114 is configured as a memory that maintains the storage state even when the power supply of the personal computer 100 is turned off, for example, by backing up with a battery (not shown). The nonvolatile memory 114 stores programs read from the external device 72 via the interface 115, programs input via the input unit 30, and various data obtained from various parts of the personal computer 100 or a machine tool (for example, setting parameters obtained from a machine tool). The programs and various data stored in the nonvolatile memory 114 can also be expanded in the RAM 113 when executed / used. In addition, the parameter setting program and system program of the present disclosure are written in the ROM 112.

[0022] The interface 115 is an interface for connecting the personal computer 100 and an external device 72 such as an adapter. Programs, various parameters, etc. are read from the external device 72. In addition, various parameters edited in the personal computer 100 can be stored in an external storage unit through the external device 72. The parameter setting program of the present disclosure may be stored in one or more external storage units instead of being stored in the ROM 112 in the personal computer 100, and read from the outside.

[0023] Data read into RAM 113 and data obtained as a result of executing a program are output to display unit 70 via interface 118 and displayed. Input unit 30 including a keyboard, a mouse, etc. transfers user input to CPU 111 via interface 119 .

[0024] Figure 2 1 is a block diagram of the main parts of a personal computer 100 as one embodiment of the present disclosure. The following configuration is realized by the CPU 111 executing a parameter setting program recorded in the ROM 112 .

[0025] The personal computer 100 includes: a mechanical structure receiving unit 11, which receives the user's setting of the mechanical structure; a mechanical structure obtaining unit 12, which obtains the mechanical structure set in the past; a mechanical structure storage unit 13, which stores the mechanical structure set in the past; an adjusted parameter obtaining unit 14, which obtains the adjusted parameters adjusted on the actual machine or simulator; an adjusted parameter storage unit 15, which stores the adjusted parameters; an axis structure conversion unit 16, which, when a mechanical structure identical or similar to the mechanical structure accepted by the mechanical structure receiving unit is set, reads out the adjusted parameters corresponding to the mechanical structure and converts the axis structure of the adjusted parameters; a default parameter storage unit 17, which stores default parameters; a default parameter setting unit 18, which sets default parameters; and a parameter forwarding unit 19, which forwards the parameters generated by the personal computer 100 of the present disclosure to an external device.

[0026] These functions of the personal computer 100 are realized by the CPU 111 executing a program stored in the ROM 112 or read via the interface 115 . Alternatively, these functions may be realized by a server connected via the interface 115 .

[0027] The mechanical structure receiving unit 11 displays a mechanical structure editing screen on the display unit 70 of the personal computer 100. The mechanical structure can be set on the mechanical structure editing screen. The mechanical structure includes identification information of the machine tool, correspondence between axes of the numerical controller (first axis, second axis, ...) and axes of the machine tool (X axis, Y axis, ...), identification information of the motor mounted on each axis, type of each axis (linear axis, rotary axis), etc.

[0028] The mechanical structure acquisition unit 12 acquires the mechanical structure from a numerical controller connected to the personal computer 100 , another personal computer, a removable storage medium inserted into the personal computer 100 , or the like.

[0029] The mechanical structure storage unit 13 stores the mechanical structure. The mechanical structure storage unit 13 stores the mechanical structure set in the past. The mechanical structure set in the past is not limited to the mechanical structure set by the user in the mechanical structure receiving unit 11, and can also be obtained from an external personal computer, a numerical control device, or a removable storage medium via the mechanical structure acquisition unit 12. In addition, the mechanical structure of the present disclosure has the same data format as the parameters of the machine tool, and can therefore be processed in the same manner as other parameters of the machine tool.

[0030] The adjusted parameter storage unit 15 stores the adjusted parameters acquired from the numerical controller or the simulator. The adjusted parameters are not default parameters but adjusted parameters adjusted on the numerical controller or the simulator so as to adapt to the motion of the machine tool.

[0031] The axis structure conversion unit 16 converts the axis structure of the adjusted parameters. The adjusted parameters of the converted axis structure may be directly specified by the user or retrieved by the axis structure conversion unit 16. When retrieving the adjusted parameters, the axis structure conversion unit 16 retrieves the adjusted parameters having the same or similar axis structure as the mechanical structure set by the user in the mechanical structure receiving unit 11. After detecting the difference in the axis structure, the axis structure conversion unit 16 converts the axis structure. Specifically, the parameters set in each axis are moved or copied. In addition, when the relationship between the axes is specified by parameters, the relationship between the axes is also converted.

[0032] The default parameter storage unit 17 stores default parameters corresponding to the mechanical structure. The default parameters are minimum parameters that are not adjusted and are required to move the axis.

[0033] When a new axis that has not been set in the past is added, the default parameter setting unit 18 reads the default parameters from the default parameter storage unit 17 based on the mechanical configuration set by the user, and sets them as parameters of the corresponding axis.

[0034] The parameter forwarding unit 19 forwards the parameters set by the personal computer 100 to the numerical control device or other external devices such as personal computers or removable storage media. The parameters forwarded by the parameter forwarding unit 19 are used for the operation or simulation of the machine tool performed by the numerical control device. As a result, the parameters are adjusted and the adjusted parameters are completed.

[0035] Next, refer to Figure 3 to Figure 7 The parameter setting process of the personal computer 100 will be described. In the following description, (1) a case where a user specifies a mechanical structure to be reused and (2) a case where the personal computer 100 side searches for a mechanical structure that can be reused will be described.

[0036] (1)Reference Figure 3 The operation of the personal computer 100 when the user specifies a reused mechanical structure will be described. When the reused mechanical structure is specified (step S1), the adjusted parameter acquisition unit 14 acquires the adjusted parameters corresponding to the specified mechanical structure (step S2). At this time, the display unit 70 displays the adjusted parameters and displays, for example, Figure 4 The screen for transforming the mechanical structure of the adjusted parameters is shown in step S3. In this screen example, the user can set the addition / deletion of linear axes, addition / deletion of parallel axes, addition / deletion of rotation axes, setting of movement amount, etc. The user adds and moves axes while operating the screen to transform the existing mechanical structure (step S4).

[0037] The axis structure conversion unit 16 compares the axis structure of the mechanical structure set in step S4 with the axis structure of the adjusted parameters obtained in step S2 (step S5). The axis structure conversion unit 16 performs axis conversion such as copying, moving, and conversion of the relationship between axes of the adjusted parameters according to the comparison result of step S5 (step S6). In addition, as a result of comparing the axis structures in step S5, if a new axis without adjusted parameters is added (step S7; yes), the default parameters of the added axis are read from the default parameter storage unit 17 and set according to the mechanical structure set by the user in step S4 (step S8). As a result of comparing the axis structures in step S5, if a new axis is not added (step S7: no), the parameter setting is terminated. The parameter forwarding unit 19 forwards the parameters of the machine tool set in this way to an external device such as a numerical controller, another personal computer, or a removable storage medium. The parameters forwarded by the parameter forwarding unit 19 are adjusted by the numerical controller or the simulator.

[0038] (2)Reference Figure 5 An example of searching for reusable adjusted parameters on the personal computer 100 side will be described.

[0039] First, the mechanical configuration accepting unit 11 presents the mechanical configuration setting screen to the user and accepts the mechanical configuration setting from the user (step S11). When the mechanical configuration setting from the user is accepted, the axis configuration converting unit 16 searches for a mechanical configuration that is the same as or similar to the mechanical configuration set by the user (step S12).

[0040] In step S12, when the same or similar mechanical structure does not exist in the mechanical structure storage unit 13 (step S13; result 1), the axis structure conversion unit 16 transfers the processing to the default parameter setting unit 18. The default parameter setting unit 18 reads the default parameters from the default parameter storage unit 17 based on the mechanical structure parameters set by the user, and sets the default parameters for all axes (step S14).

[0041] When the mechanical structure storage unit 13 has the same mechanical structure as the one set by the user (step S13; result 2), the axis structure conversion unit 16 reads the adjusted parameters having the same mechanical structure as the one set by the user from the adjusted parameter storage unit 15 (step S15). The adjusted parameters read here have the same mechanical structure as the one set by the user in step S1, so even if the axis structure is not changed, the adjusted parameters are set.

[0042] When there is a mechanical structure similar to the mechanical structure set by the user in the mechanical structure storage unit 13 (step S13; result 3), the axis structure conversion unit 16 reads out the adjusted parameters having the mechanical structure similar to the mechanical structure set by the user in step S11 from the mechanical structure storage unit 13 (step S16), and compares the axis structure of the mechanical structure set by the user with the axis structure of the mechanical structure set in the past (step S17). The axis structure conversion unit 16 performs axis movement, copying, conversion of the relationship between axes, etc. based on the difference between the axis structure of the mechanical structure set by the user and the axis structure set in the past, and converts the adjusted parameters read out in step 16 into the axis structure of the mechanical structure set by the user.

[0043] by Figure 6 The operation of the shaft structure conversion unit 16 will be described by taking the mechanical structure of FIG. 1 as an example. Figure 6 The left side of the figure shows the data of the previously set mechanical structure, and the right side of the figure shows the data of the newly set mechanical structure by the user. In the previously set mechanical structure, the X axis, Y axis, Z axis, and C axis were set on the 1st axis, 2nd axis, 3rd axis, and 4th axis, respectively. In the newly set mechanical structure, the A axis is added to the 4th axis of the previously set mechanical structure, and the previously set C axis is moved to the 5th axis. In other words, the axis is moved and added.

[0044] When a similar mechanical structure exists in the mechanical structure storage unit 13, the shaft structure conversion unit 16 reads out the adjusted parameters including the mechanical structure parameters set in the past from the adjusted parameter storage unit 15. Figure 7 As shown in FIG. 1 , the adjusted parameters are composed of mechanical structure parameters and other parameters. Other parameters are adjusted parameters that have been adjusted on actual working equipment and simulators.

[0045] When an axis moves, the axis configuration conversion unit 16 copies the parameters of the axis of the movement source to the parameters of the axis of the movement destination, and adjusts the relationship between the axes in accordance with the movement and addition of the axes.

[0046] Adjusting the relationship between axes is a parameter related to special interpolation and synchronous control between axes. Special interpolation between axes includes, for example, interpolation that transforms the orthogonal coordinate system into the polar coordinate system, and interpolation that corrects the orthogonal coordinate system in the program into the actual moving coordinate system. In synchronous control, there are relationships between master and slave axes. Figure 6 In the example, since there is an axis movement from the 4th axis to the 5th axis, the adjusted parameters of the 4th axis are copied to the 5th axis. In addition, there is an axis relationship between the 1st axis and the 4th axis, and the setting item 3 of the 1st axis is set to "4th axis". Since the 4th axis moves to the 5th axis, the value of the setting item of the 1st axis "4th axis" is rewritten to "5th axis" to adjust the relationship between the axes.

[0047] If the axis configuration conversion unit 16 moves, copies, or converts the relationship between axes whose parameters have been adjusted, then Figure 7 The adjusted parameters on the left are transformed into Figure 7 In this parameter, the 1st to 3rd axes and the 5th axis are axes that have been set in the past, so the adjusted parameters are copied, but the 4th axis is a newly set axis, so the adjusted parameters that have been set in the past cannot be reused. Therefore, the parameters other than the mechanical structure parameters are empty.

[0048] Thus, when a new axis is added, the parameters other than the mechanical structure are empty (in Figure 7 In the example of the 4th axis). When the parameters other than the mechanical structure are empty, the machine cannot operate. Therefore, the default parameter setting unit 18 reads the parameters from the default parameter storage unit 17 based on the mechanical structure set by the user, and sets the read default parameters as the parameters of the newly set axis.

[0049] The default parameter setting unit 18 reads and sets the default parameters of the newly added axis from the default parameter storage unit 17 based on the mechanical configuration set in step S1 (step S18 ). In this way, parameters are generated by reusing the existing adjusted parameters.

[0050] The parameters generated in step S14, step S15, and step S18 are transferred to an external numerical controller, another personal computer, a removable storage medium, etc. by the parameter transfer unit 19. Alternatively, the generated parameters may be stored in the ROM of the personal computer 100.

[0051] Next, refer to Figure 8 A personal computer 100a according to another embodiment of the present disclosure is described. The personal computer 100a is provided with a mechanical structure analysis unit 20. The mechanical structure analysis unit 20 analyzes the mechanical structure of the adjusted parameters. The mechanical structure can be analyzed based on the axis number (first axis, second axis, etc.) of the numerical control device included in the adjusted parameters, the axis name (X axis, Y axis, etc.) of each axis, the identification information of the motor installed on each axis, etc. The mechanical structure analysis unit 20 analyzes the axis structure such as which axis of the machine tool is set in which axis of the numerical control device, what kind of motor is set in each axis, and whether there is a relationship between the axes based on the data set as the adjusted parameters.

[0052] Fig. 91 is a flowchart for explaining the operation of the personal computer 100a including the mechanical structure analysis unit 20. When the adjusted parameter acquisition unit 14 acquires the adjusted parameters from the numerical control device or the simulator (step S21), the mechanical structure analysis unit 20 analyzes the mechanical structure of the adjusted parameters based on the values ​​of the adjusted parameters (step S22). The parameters for analyzing the mechanical structure are the above-mentioned axis number, axis name, motor identification information, machine tool identification information, and the relationship between the axes.

[0053] The analysis result of the mechanical structure analysis unit 20 is stored in the mechanical structure storage unit 13 (step S23). The mechanical structure stored in the mechanical structure storage unit 13 can be used as the history information of the mechanical structure. In addition, the mechanical structure analyzed by the mechanical structure analysis unit 20 may be temporarily used for the axis structure conversion without being stored in the mechanical structure storage unit.

[0054] In the personal computer 100 of the present disclosure, the burden of the user involved in parameter adjustment is reduced by utilizing the existing adjusted parameters. In addition, when a new axis is added, default parameters are set, thereby reusing the existing adjusted parameters and ensuring the minimum parameters required for operating the machine tool.

[0055] The personal computer 100a of the present disclosure analyzes the mechanical structure of the adjusted parameters obtained from the outside such as a numerical controller and a simulator, thereby facilitating the comparison between the mechanical structure set by the user and the adjusted parameters and the mechanical structure and the conversion of the axis structure of the adjusted parameters, which is useful for effectively utilizing the adjusted parameters.

Claims

1. A parameter setting device for a machine tool having a plurality of axes, characterized in that: The parameter setting device has: a mechanical structure receiving unit that receives a setting of a mechanical structure of the machine tool including an axis structure of the plurality of axes; an adjusted parameter acquisition unit that acquires an adjusted parameter data group adjusted to be suitable for actual operation of a predetermined machine tool; and An axis structure conversion unit detects the difference by determining the correspondence between the axes of the mechanical structure set by the mechanical structure receiving unit and the axes of the adjusted parameter data set, and converts the parameters of the corresponding axes of the mechanical structure set by the mechanical structure receiving unit according to the parameters of the axes of the adjusted parameter data set.

2. The parameter setting device according to claim 1, characterized in that: The axis structure conversion unit detects the difference between the axis structure of the mechanical structure set by the mechanical structure receiving unit and the axis structure of the adjusted parameter data group, and copies the adjusted parameters corresponding to the axis when the axis set by the mechanical structure receiving unit is included in the adjusted parameter data group.

3. The parameter setting device according to claim 1, characterized in that: The above-mentioned axis structure transformation unit detects the difference between the axis structure of the mechanical structure set by the above-mentioned mechanical structure receiving unit and the axis structure of the above-mentioned adjusted parameter data group. When the axis set by the above-mentioned mechanical structure receiving unit moves to other axes of the above-mentioned adjusted parameter data group, the adjusted parameters corresponding to the axis set by the above-mentioned mechanical structure receiving unit are moved to the above-mentioned other axes.

4. The parameter setting device according to claim 1, characterized in that: When the parameters related to the mechanical structure and the adjusted parameters set the relationship between the axes, the axis structure conversion unit converts the relationship between the axes.

5. The parameter setting device according to claim 1, characterized in that: The parameter setting device comprises: a default parameter setting unit, which sets default parameters for the axis when the axis set by the mechanical structure receiving unit does not exist in the adjusted parameter data group as a result of the difference between the axis structure of the mechanical structure set by the mechanical structure receiving unit and the axis structure of the adjusted parameter data group detected by the axis structure conversion unit.

6. The parameter setting device according to claim 1, characterized in that: The parameter setting device includes a mechanical structure analyzing unit that analyzes the mechanical structure of the adjusted parameter data set based on the data of the adjusted parameter data set.

7. The parameter setting device according to claim 1, characterized in that: The parameter setting device includes a storage unit for storing an adjusted parameter data group. The shaft structure conversion unit searches for an adjusted parameter data set having a mechanical structure that is the same as or similar to the mechanical structure set by the mechanical structure reception unit.

8. A parameter setting system for a machine tool having a plurality of axes, characterized in that: The parameter setting system has: a mechanical structure receiving unit that receives a setting of a mechanical structure of the machine tool including an axis structure of the plurality of axes; an adjusted parameter acquisition unit that acquires an adjusted parameter data group adjusted to be suitable for actual operation of a predetermined machine tool; and An axis structure conversion unit detects the difference by determining the correspondence between each axis of the mechanical structure set by the mechanical structure receiving unit and the respective axes of the adjusted parameter data set, and converts the parameters of the respective corresponding axes of the mechanical structure set by the mechanical structure receiving unit according to the parameters of the respective axes of the adjusted parameter data set.

9. A method for setting parameters of a machine tool having multiple axes, characterized in that: The parameter setting method comprises the following steps: Accepting user settings for the mechanical structure of the machine tool including the axis structure of the plurality of axes; Obtaining a set of adjusted parameter data that is adjusted to be suitable for the actual operation of the machine tool; as well as The difference is detected by determining the correspondence between the axes of the mechanical structure set by the user and the axes of the adjusted parameter data set, and the parameters of the corresponding axes of the mechanical structure set by the user are transformed according to the parameters of the axes of the adjusted parameter data set.

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