JP3000985B2 - Numerical control unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical controller, and more particularly to a function for correcting data in the numerical controller.

[0002]

2. Description of the Related Art FIG. 10 is a block diagram of a main part of a numerical control device (hereinafter referred to as an NC device). Reference numeral 1 denotes an NC device, and 2 denotes an external input / output device connected to the NC device 1.

The NC device 1 includes a processor (CPU) 10
And a ROM 14 and a RAM 15 for storing a control program.
And a display (CRT) 19 and its controller (GDC) 18, a video RAM (VRAM) 17 for storing display data, and a keyboard (KEY)
21 and its controller (keyboard control) 20;
A nonvolatile memory (battery backup RAM) 16 for storing various parameters and offset data,
P which performs data input / output with the axis control unit 11 of each axis and the outside (machine side high power board, operation panel) by performing a predetermined sequence process
It comprises an MC device 12, an I / O unit 13, and an input / output control device 22 for inputting / outputting data to / from the external input / output device 2, and includes 10, 11, 12, 14, 15, 16, 1
Elements 7, 18, 20, and 22 are connected by a bus line 4.

[0004] FIG. 11 is a configuration diagram of various data stored in the NC device 1, which is stored in the nonvolatile RAM 16. The tool data is data of a tool (not shown) mounted on a machine tool (not shown), and the tool shape data 91 is data indicating the shape of the tool.
The tool correction amount data 92 sets a nose R correction value of the tool, and the tool offset data 93 sets an offset value indicating a mounting position of the tool. The cutting condition data 94 sets a value used when automatically determining the cutting condition. The machining program data includes an area 95 for storing a machining program described in EIA and an area 96 for storing a machining program described in an automatic program. The setup data 97 stores data such as nail shape data used in each processing and data such as a Z offset amount indicating the end face position of the work. The parameter 98 stores various parameters used in the NC device 1. Of these, only the EIA machining program 95 is stored in a character code (ASC11).

FIG. 12 shows an example of an operation board of the NC device, which comprises a CRT 19 and a keyboard 21. 13 to 16 show N displayed on the CRT 19.
13 is an example of various data of C. FIG. 13 is a “POSITION” screen showing information such as the current position of the tool, FIG. 14 is a “TOOL DATA” screen showing offset data of the tool, and FIG. "NOS"
FIG. 16 shows an “ERG” screen, and “PROGRAM FILE” showing information on machining programs stored in the NC device.
Screen.

[0006] As is well known, the above-mentioned NC apparatus executes numerical control processing based on a processing program instructed from a paper tape or the like, and drives a machine tool based on a result of the processing to perform processing on a workpiece as instructed. However, some NC apparatuses have a function (background function) for setting data even during actual processing, as disclosed in Japanese Patent Application Laid-Open No. 2-199506.

[0007]

However, a conventional NC apparatus having a function (background function) capable of setting data even during actual machining is a tool which actually affects machining being executed. The correction amount and the value of the parameter cannot be corrected, and there are restrictions on the data that can be corrected. This is because data used during processing, such as parameters and tool information, is dangerous if it is corrected during processing.

Further, when the internal data needs to be corrected in the next step, it is conventionally necessary to correct the data after the completion of the processing, and the processing cannot be performed during the data correction, resulting in a waste of machine time. Would.

Similarly, when the machining program is modified using the background function, there is a problem that the machining program during machining cannot be modified.

[0010] Further, when the tool correction amount and parameters of the NC device 1 are corrected, it is difficult to know which data has been corrected and how. Therefore, the data must be checked one by one for confirmation. there were.

The parameters are described in "
No. 172133, a method of storing data before correction and displaying the data before correction from the most recent one has been proposed. However, this method only displays the data. According to the presented method, data before correction is only stored, so that data before and after correction cannot be compared.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. During machining, data in a NC device such as a tool correction amount and a parameter value which affect the machining being executed can be freely set. It is an object of the present invention to obtain an NC device which can be modified and which has no influence on machining.

The present invention has been made in order to solve the above-described problem. When data in an NC device is corrected, an NC capable of comparing data before correction with data after correction is provided. The aim is to obtain a device.

[0014]

SUMMARY OF THE INVENTION An NC unit according to the present invention, when correcting data in a numerical controller, uses actual data.
Judge whether the modification of the data is prohibited, and
When not prohibited, correct actual data
Correction information generating means for generating correction information without correcting actual data when the correction is prohibited; and a correction information storage memory for storing the correction information generated by the correction information generating means. And means for correcting actual data based on the data stored in the correction information storage memory when a data conversion command is issued.

[0015]

Further, in the NC apparatus according to the present invention, in the above-described numerical control apparatus, the correction data input from the outside is stored in a single memory, and when the data correction release command or the data conversion command is issued, The data is converted.

Further, the NC apparatus according to the present invention, in the above numerical control apparatus, is provided with means for allowing an operator to determine whether or not the actual data can be corrected.

An NC apparatus according to the present invention is the numerical control apparatus described above, further comprising a correction history storage memory for storing a correction history and a means for displaying the correction history on a display unit.

An NC apparatus according to the present invention is the above numerical control apparatus, further comprising means for displaying a designated correction history on a display unit.

Further, an NC apparatus according to the present invention, in the above-mentioned numerical control apparatus, is provided with means for editing correction information in a correction history.

An NC apparatus according to the present invention is the numerical control apparatus described above, further comprising means for outputting correction information in the correction history to an external input / output device or a correction information storage memory.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. Embodiment 1 according to the present invention will be described. Note that the hardware configuration of the numerical control device used in the present invention is the same as that of the conventional one, and a description thereof will be omitted. FIG. 1 is a data flow when the operator 39 operates the operation board 3 on the NC device 1 to edit the internal data 32 of the NC device.

First, the operator 39 edits the data by operating the keyboard 21 while watching the data displayed on the CRT 19 on the operation board 3. At this time, CRT1
9 is extracted from the internal data 32 (route 1000), and after the display processing unit 41 processes the data so that it can be displayed on the CRT 19,
It is displayed on the CRT 19 (route 1001).

The data input by the operator 39 from the keyboard 21 is passed to the editing processing unit 40 (route 10).
02).

In this case, as shown in the flowchart of FIG. 2, it is checked whether data editing is prohibited during automatic driving or the like (step 100). If not, the internal data is edited as it is (step 10
1). In FIG. 1, a route 1003 is shown. Thereby, the content of the internal data 32 is changed. The state in which editing of data is prohibited means that the NC device 1 is in automatic operation, is actually performing processing, and it is dangerous if the internal data 32 is changed, or when the internal data 32 is corrected. This is a state in the data editing prohibition mode that is used when correction information is created before actually changing the internal data 32 and then corrected while checking the correction contents later.

If it is prohibited, the correction information is converted into a character code (step 102). This character code is, for example, as shown in FIG. 14, when it is attempted to set data “111.222” at # 5, <Z>, (7, 5, 2) = 0, 111.222; A character code is generated.

This is the data in the fifth row and the second column of the seventh screen.
"0" is corrected to "111.222", that is, the data in "()" indicates the display position of the screen, "7" is the screen number, "5" is the number of lines, and "5.""2" indicates the number of columns, "=" indicates data before correction and data after correction, "0" indicates data before correction, and "0" indicates data before correction.
111.222 "indicates the corrected data.

Next, the generated character code is stored in the correction data storage area 38. In FIG. 1, 100
4 route.

Next, the edited data portion is highlighted (step 104) so that the user can see at a glance which portion has been modified.

When displaying data on the screen, as shown in FIG. 1, the display control unit 41 controls the internal data 32 (route 1).
000) and correction data 38 (route 100
5) Combine these to generate data to be displayed on the CRT 19. That is, the correction result is displayed on the CRT 19.

In FIG. 5, when a case where data of 123.456 is set in <X> of # 5 of "TOOL DATA" and data of 456.789 is set in <Z>, a screen indicated by 51 is a screen before data correction. When the operator inputs # (5) X (123.456) Z (456.789) C () and presses the “INPUT” key to instruct data input, as shown at 52, The data is displayed after being corrected to the set data, and a reverse display indicating that the data has been temporarily corrected is displayed.

When a plurality of data are corrected on one screen, all the corrected portions are highlighted as shown in FIG.

FIG. 3 is a flowchart showing a process for highlighting and displaying only the correction data. It is checked whether or not the correction data corresponding to the currently displayed screen is in the correction data 38 (step 110). If the reverse display is not performed at all, the corresponding data section is corrected to the corrected data value and displayed in reverse (step 111), and it is checked whether there is any other corresponding data (step 112). The data is corrected and inverted display is performed (step 111). If there is no corresponding data, the process ends.

When the prohibition of data editing is released, the correction data is extracted as shown in FIG.
6) The change processing unit 42 corrects the internal data 32 based on the correction data (route 1007). The corrected data 38 is automatically deleted.

In the above example, the operator 39 uses the keyboard 2
1 shows the case where data is input, but when data is input from the external input / output device 2 in a state where editing of data is prohibited, the once input data is similarly stored as correction data 38. The same processing may be performed when the data prohibition is released.

When inputting data from the external input / output device 2, even if editing of the data is not prohibited, the input data is stored as correction data 38, and the data is corrected after a conversion command is issued. You may make it. In this way, as shown in the third embodiment, it is possible to perform data correction while confirming data one by one.

Further, in the above-described embodiment, the corrected data portion is displayed in reverse video. However, the present invention is not limited to this, and another method capable of determining the corrected portion may be used. For example, a mark indicating that the correction has been made may be displayed on the correction part, or a method of changing the display color of the correction part may be used for a color CRT.

When the history storage mode is ON, when the data is corrected, the editing processing unit 40 always converts the correction information into a character code and stores it in the history data 45 (route 1012). The history data 45 is the correction data 3
The character code is stored in the same format as that of No. 8 and stored in the order of correction.

The history data 45 stores data as long as the allocated storage capacity permits, and when the capacity exceeds the allowance, deletes the oldest data in order from the latest correction information to the oldest correction information within the storage capacity range. Is stored.

The contents of the history data 45 can be displayed on the CRT 19 (route 1015), and can be displayed in the order of storage, that is, in order from the latest data.
It is also possible to display only specific data, for example, only specific screen data (route 1001).

FIGS. 8A and 8B show an example in which the history data 45 is displayed on the CRT 19, FIG. 8A shows an example in which the latest data is displayed in order, and FIG. 8B shows an example in which only the data on the screen 7 is displayed. The menu display at the bottom of the screen is for selecting what operation is to be performed on the history data 45, and "ALL" is for displaying the history data 45 in order from the latest data. Data that cannot be displayed on one screen can be displayed by switching the screen.

The screen display of (A) is this example, and the display at the upper right of the screen indicates the number of the currently displayed screen. The example of (A) shows that the first screen of the five screens is displayed. “SORT” displays only specific data, and the screen of FIG. In the screen shown in (B), only correction data relating to the seventh screen is displayed.

"EDIT" is for correcting the history data, and the data on the cursor 46 can be freely edited as shown in FIG. 9A. Editing allows you to change the value or delete the data itself, so if you have corrected the value of the data that was incorrectly corrected to the correct value, or if you have corrected data that does not require correction, the corrected data Can be deleted. Also, by exchanging the data before and after the correction, it is possible to create data for restoring the data once corrected. (Route 1013, Route 1014)

For example, if there is data (7,3,1) = 55.123,64.872, in order to return this data to the data before correction again, the data before and after correction are exchanged. , (7,3,1) = 64.872,55.123, which is then described as “COP
The data of (7, 3, 1) can be restored by transferring the data to the correction data and changing it using the Y "function.

"COPY" transfers part or all of the contents of the history data 45 to the correction data 38 (route 1016). The data transferred to the correction data 38 is treated exactly equivalent to the internal data 32 created by the normal route as described above.

The data to be transferred can be specified by copying the entire contents of the history data 45 or by specifying a part of the data as shown in FIG. 9B. The data range is specified by operating the cursor keys on the keyboard 21 at the beginning and end of the data to be copied. The specified data is highlighted so as to be apparent to the operator. "I / O" is used to input or output a part or all of the history data 45 to / from an external input / output device (route 1017). When outputting, specify the data to be output as in the case of "COPY". it can.

Embodiment 2 Next, a second embodiment of the present invention will be described. FIG. 1 shows a method in which the correction data 38 is extracted in the first embodiment (route 1006), and the internal data 32 is corrected by the correction processing unit 42 based on this data (route 1007).

In the present embodiment, the modification of the internal data 32 based on the modification data 38 is the same, but the modification is performed after confirming the operator 39 one by one at the time of modification.

The correction method will be described with reference to the flowchart of FIG. First, it is checked whether or not the correction data 38 exists (step 120). Here, N indicates the number of correction data, and n indicates a counter of correction data.

The counter value is initialized to 1 (step 121). The screen number S is initialized to 0 (step 122). S indicates the number of the screen displayed on the CRT 19.

Screen No. of n-th data And the value of S are compared (step 123). In FIG. 1, route 1008
It is. The n-th screen No. If the values are different,
The n-th screen No. Is taken out and set to S (step 124). The screen of the screen number S is displayed (step 1
25).

The n-th data portion is highlighted (step 126). This indicates that the highlighted data is the data to be corrected. In this case, the data to be highlighted is the data before correction.

The n-th data is displayed on the data input section (step 127). This state is indicated by reference numeral 61 in FIG. In FIG. 1, the route 1009 corresponds to this.

Next, the operator is asked to determine whether to correct this data (step 128). If the user wants to make a correction, he presses the "INPUT" key of the keyboard 21 on the operation board 3 shown in FIG. In FIG. 7, 101
0 route.

When a request for correction is made, an n-th data correction process is performed (step 129). The correction processing is performed by the correction processing unit 42 in FIG. 1 as in the case of the first embodiment. Routes 1011 and 1007. The corrected data is displayed on the screen (route 1009).

The reverse display of the n-th data portion is stopped (step 130), and the process proceeds to the next data (step 1).
31).

In FIG. 7, "INPU 61"
Pressing the "T" key. That is, when a data correction request is issued, the screen of 62 is displayed. The data of # 5 which has been requested to be corrected is corrected, and then the data portion of # 7 which has been requested to be corrected is highlighted And waits for the operator to determine whether to correct the data.

When the "CB CAN" key is pressed,
The modification is canceled, and the data of # 5 is not modified as shown in the screen display of 63 in FIG.

If there is no more data to be processed, the entire process is terminated, and if so, the process is repeated from step 123 (step 132).

As described above, in the present embodiment, the operator 39 can correct the internal data 32 while checking the correction data 38 one by one.

The operator operates the internal data 32 of the NC unit 1
If you want to make corrections while checking again later, edit the data after setting it in the data edit prohibition mode, release the data edit prohibition mode, and It is possible to correct data while checking.

The ON / OFF of the data editing inhibition mode, the ON / OFF of the data confirmation mode, and the ON / OFF of the history storage mode are performed by operating the keyboard 21 on the operation board 3.

[0063]

According to the present invention, the internal data of the NC device can be apparently changed even while the machine is processing without greatly increasing the used memory capacity, so that the data can be corrected. Since the actual data can be corrected as soon as possible, the time for idle use of the machine is greatly reduced in spite of the inexpensive system, and background processing independent of the foreground state can be performed.

In the case where an off-line measurement is performed by an external measuring device or the like connected to the NC device and the result is fed back to the NC device, conventionally, data cannot be input depending on the state of the NC device. Was.
That is, this is a case where the NC device is executing the processing and the correction of the internal data is in a prohibited state. Therefore, it is necessary to perform a process of checking the state of the NC device and waiting for data input until the data can be corrected, so that the time of the external device is wasted and the processing content is complicated. According to this method, data can be input irrespective of the state of the NC device, so that despite the inexpensive system, there is no wasted time of external devices, and the processing content is simplified.

According to the present invention, when correction data is input from an external input / output device to correct the actual data in the NC device, when the correction prohibition is canceled or a data conversion command is issued, the actual data is corrected. Therefore, when the correction data is input from the external input / output device to correct the actual data in the NC device, the data in the NC device is not carelessly corrected.

Further, according to the present invention, when correcting the internal data of the NC unit, it becomes possible for the operator to correct the data while checking the data one by one, so that a mistake in correcting the data can be greatly reduced.

Further, when the data in the NC device is corrected, the NC device according to the present invention can collate the data before the correction with the data after the correction, and can easily find a data correction error. Also, when displaying the revision history,
It is possible to display only a specific correction history, and as a result, it is possible to more easily find a data correction error.

Further, since the NC apparatus according to the present invention can edit the correction information of the correction history, if a data correction error is found, it can easily return to the data before correction.

Further, the NC device according to the present invention can output the correction history to an external input / output device or the like, so that devices other than the NC device can correct the internal data of the NC device.

[Brief description of the drawings]

FIG. 1 is a data flow diagram relating to data input / output of the present invention.

FIG. 2 is a flowchart at the time of data correction according to the present invention.

FIG. 3 is a flowchart relating to screen display of correction data according to the present invention.

FIG. 4 is a flowchart relating to screen display of correction data according to the present invention.

FIG. 5 is an operation explanatory diagram relating to data correction according to the present invention.

FIG. 6 is an explanatory diagram of a screen display relating to data correction according to the present invention.

FIG. 7 is an explanatory diagram of an operation related to data correction according to the present invention.

FIG. 8 is a display example of history data according to the present invention.

FIG. 9 is a display example of history data according to the present invention.

FIG. 10 is a block diagram of a main part of a numerical control device.

FIG. 11 is a data configuration diagram in a numerical controller.

FIG. 12 is a diagram of a conventional operation board.

FIG. 13 is an explanatory diagram of a conventional screen display (POSITIO)
N).

FIG. 14 is an explanatory diagram of a conventional screen display (TOOL DAT).
A).

FIG. 15 is an explanatory view (NOSE-R) of a conventional screen display.

FIG. 16 is an explanatory diagram of a conventional screen display (PROGRAM).
FILE).

[Explanation of symbols]

 1. 1. NC device 2. External input / output device Operation board 4. Bus line 10. Processor (CPU) 11. Axis control unit 12. PMC 13. I / O unit 14. ROM 15. RAM 16. Non-volatile memory 17. VRAM 18. GDC 19. CRT 20. Keyboard control unit 21. Keyboard (KEY) 22. Input / output control device 38. Corrected data 39. Operator 40. Editing unit 41. Display processing unit 42. Change processing unit 43. Confirmation processing unit 44. History processing unit 45. History data 46. Cursor 51. Screen display before correction 52. Input data 53. Screen display after correction Screen display before correction 62. Screen display after correction 63. Uncorrected screen display

Claims (7)

(57) [Claims] 1. When correcting data in a numerical controller,
Determines whether the modification of the actual data is prohibited,
Modify the actual data when the modification is not prohibited
Correction information generating means for generating correction information without correcting actual data when the correction is prohibited, and correction information storage for storing the correction information generated by the correction information generating means. A numerical control device comprising: a memory; and means for correcting actual data based on data stored in the correction information storage memory when a data conversion command is issued. 2. The numerical controller according to claim 1, wherein
And store the correction data input from outside in the memory
The data correction release command or data conversion command
A numerical control device for converting the data with actual data . 3. A numerical control apparatus according to claim 1 or claim 2, the actual modification propriety data operator
A numerical control device characterized by comprising means for making a judgment . 4. The correction history storage memory according to claim 1, wherein a correction history is stored.
And a means for displaying the correction history on a display unit . 5. The numerical control device according to claim 4 , further comprising means for displaying a designated correction history on a display unit. 6. The numerical control device according to claim 4, further comprising means for editing correction information in a correction history . 7. The numerical control device according to claim 4, wherein the correction information in the correction history is stored in an external input / output device.
Alternatively, a numerical control device provided with means for outputting to a correction information storage memory .