JP6971416B1 - Program editing equipment and programs - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent human error in editing a numerical control program. A program editing device according to an embodiment of the present invention includes a reception unit that accepts a numerical control program for a machine tool, a program display unit that displays a code column in each line of the numerical control program, and (i) a numerical control program. When a code column of a new line is accepted in, a simulation image showing the behavior of the machine tool by the code column of the new line, or (ii) change the code column of one line in the numerical control program. It has an image display unit that displays a simulation image showing the behavior of the machine tool according to the code column of the changed line when it is received. [Selection diagram] FIG. 6

Description

The present invention relates to a technique for editing a numerical control program for a machine tool.

Machine tools that automatically perform machining by numerical control (NC), such as turning centers and machining centers, are widely used. In order to use such a machine tool, a numerical control program (hereinafter referred to as NC program) for instructing machining by numerical control is prepared.

In addition to the method of generating an NC program using CAD (Computer-Aided Design) or CAM (Computer Aided Manufacturing), the user may code as before. However, if there is a human error in coding, it will not be processed correctly by the NC program. Therefore, it is desirable to reduce human error when creating an NC program.

Japanese Unexamined Patent Application Publication No. 2013-2000766 Japanese Unexamined Patent Publication No. 2-151908 Japanese Unexamined Patent Publication No. 2016-018539

As a method of verifying the NC program, a machine tool on which no work is installed may be operated idle. However, the effort to observe the behavior of the work in idle operation is great, and the deficiency of the NC program may be overlooked. In addition, it is a large-scale work and occupies the machine tool, so it cannot be verified frequently.

The present invention provides the program editing apparatus and the like described in the claims.

According to the present invention, human error in editing an NC program can be reduced.

It is a perspective view of a work. It is a screen view of the edit screen and the simulation screen described up to the 26th line. It is a screen view of the edit screen and the simulation screen described up to the 27th line. It is a screen view of the edit screen and the simulation screen described up to the 28th line. It is a screen view of the edit screen and the simulation screen described up to the 29th line. It is a screen view of the edit screen and the simulation screen described up to the 30th line. It is a screen diagram of an edit screen and a simulation screen in which an erroneous description is made in the 30th line. It is a screen view of an edit screen and a simulation screen in which the cursor is returned to the 29th line. It is a screen view of an edit screen and a simulation screen in which the cursor is returned to the 28th line. It is a functional block diagram of a program editing apparatus. It is a data structure diagram of the cursor position and NC program code table corresponding to FIG. It is a data structure diagram of the cursor position and NC program code table corresponding to FIG. It is a data structure diagram of the cursor position and NC program code table corresponding to FIG. It is a data structure diagram of the NC program file corresponding to FIGS. 12 and 13. It is a flowchart which shows the main processing process in a program editing apparatus. It is a flowchart which shows the main processing process in a program editing apparatus. It is a flowchart which shows the simulation processing process. It is a screen view of the G code input guidance screen. It is a figure which shows the example of the guidance message in the screen of edit-simulation. It is a screen diagram of background editing. It is a figure which shows the example of the guidance message in the screen of background editing. It is a figure which shows the state which a process is selected in the background edit screen. It is a figure which shows the example of the guidance message in the screen of background editing. It is an external view of a machine tool and an operation panel.

The program editing device in this embodiment displays a simulation screen together with an editing screen. On the edit screen, the NC program is displayed according to the edit operation, and on the simulation screen, the simulation result by the NC program displayed on the edit screen is displayed.

FIG. 24 is an external view of the machine tool 700 and the operation panel 702.
This program editing device may be incorporated in the machine tool 700 and may display an editing screen or a simulation screen on the screen of the operation panel 702, or may be a computer separate from the machine tool 700 (for example, a personal computer). It may be in the form of displaying an edit screen or a simulation screen on the screen of a computer). A preferred mode is that the machine tool 700 is provided with a program editing device, and an editing screen or a simulation screen of the program editing device is displayed on the operation screen 704 of the operation panel 702.

The user writes commands in the order of machining, for example, in the input work of an NC program. In this embodiment, each time a new command is written, the machining up to that stage is simulated, and the simulation result by the new command is highlighted.

Further, when the user moves the cursor to the place where he / she wants to confirm the content of the command in the review work of the NC program, the simulation result corresponding to the cursor line is highlighted.

FIG. 1 is a perspective view of the work 100.
The work 100 assumed in this example is a plate member, and six holes 102, holes 104, holes 106, holes 108, holes 110, and holes 112 are formed in the thickness direction. The hole 102 is formed in the center of the plate member. The hole 104 is formed in the lower left of the plate member, the hole 106 is also formed in the lower right, the hole 108 is also formed in the center of the right side, the hole 110 is also formed in the upper right, and the hole 112 is also formed in the upper left. .. The inner diameters of the holes 104, 106, 108, 110, and 112 are smaller than the inner diameter of the hole 102.

Drilling holes in the work 100 is performed at a machining center, which is an example of a machine tool 700. A large diameter drill is used to cut the hole 102, and a drill with a diameter smaller than the diameter of the drill used to cut the hole 102 is used to cut the hole 104, the hole 106, the hole 108, the hole 110, and the hole 112. Is used.

In the following, the center on the surface of the work 100 will be the machining origin. Further, it is assumed that the right side when viewed from the front direction is the positive direction of the X axis, the upper side is the positive direction of the Y axis, and the front side is the positive direction of the Z axis.

It is assumed that the user codes an NC program for drilling holes 102, 104, 106, 108, 110, and 112 in this order.

FIG. 2 is a screen view of the edit screen 202 and the simulation screen 204 described up to the 26th line. The edit screen 202 and the simulation screen 204 are displayed on the operation screen 704 of the operation panel 702.
The edit screen 202 and the simulation screen 204 are included in the edit-simulation screen. The edit-simulation screen includes icon buttons 600a-j and guidance buttons 602. The icon buttons 600a to j will be described later in relation to the modification 2. The guidance button 602 will be described later in relation to the modification 1.

Following the input of "G98G83Z-33.554R3.Q7.F240." On the 26th line, the state after the ";" key is pressed is shown. When the ";" key is pressed, ";" is input and a line feed is automatically performed. The same applies hereinafter. On the simulation screen 204, the cutting edge path (hereinafter, may be simply referred to as “path”) when the control operation is executed up to the 26th line is displayed.

It is assumed that the program related to the cutting of the hole 102 is described above the 23rd line. Therefore, the path 302 related to the cutting operation of the hole 102 is displayed on the simulation screen 204. In the 23rd line and below, it is assumed that a program related to cutting of the hole 102, the hole 104, the hole 106, the hole 108, the hole 110, and the hole 112 is coded.

The 23rd line "G90G54G17G0X-100.Y-50 .;" will be described. "G90" is an absolute value command. The absolute value command is a declaration that the command is based on the distance and direction from the machining origin. "G54" is a work coordinate system command. The work coordinate system command is the designation of the machining origin position (work offset). "G17" is an XY plane command. The XY plane command is a declaration that machining is performed on the XY plane. "G0X-100.Y-50." Is positioning. In this positioning, the cutting edge of the tool (drill in this example) is moved by fast-forwarding to the positions of X coordinate: -100 mm and Y coordinate: -50 mm.

The 24th line "G43Z50.H45S1010M3;" will be described. "G43" is a tool length correction command. “H45” means that the tool length correction value of No. 45 is applied. "Z50." Is synonymous with "G0 Z50.". With this positioning, the cutting edge of the tool is moved by fast forward to the Z coordinate of 50 mm. "S1010" is a spindle speed command. Specifically, the rotation speed of the tool is specified to 1010 times / minute. "M3" commands the spindle forward rotation to rotate the tool.

The 25th line “Z50.M8;” will be described. "Z50." Is synonymous with "G0 Z50.". With this positioning, the cutting edge of the tool is moved by fast-forwarding to the Z coordinate: 50 mm. "M8" is a command for discharging coolant. By the commands so far, the cutting edge of the tool has reached the position 305 with respect to the hole 104 via the path 304. The position 305 has an X coordinate: −100 mm, a Y coordinate: −50 mm, and a Z coordinate: 50 mm.

The 26th line “G98G83Z-33.554R3.Q7.F240.” Will be described. "G98" is a command to return to the initial point level. This command is a declaration to move to the next drilling position after returning to the initial point. "G83" is a command for a deep hole drilling fixed cycle. By this command, the cutting process with the position 305 corresponding to the hole 104 as the initial point is performed, and then the cutting process with another position as the initial point is repeated. "Z-33.554" commands the position of the hole bottom. By this command, cutting is performed to a depth of Z coordinate: -33.554 mm. "R3." Command the start position of the cutting feed. The starting position of the cutting feed according to this command is the Z coordinate: +3 mm. That is, the cutting feed starts from 3 mm before the front surface. "Q7." Is the amount of cut per cut. Specifically, it means repeating a 7 mm drilling operation and a 1 mm escape operation. "F240." Is a feed rate command. Specifically, the cutting edge of the tool is moved at 240 mm / min.

When the user finishes inputting the command on the 26th line, the user presses the ";" key. At this stage, a path related to cutting of the hole 104 (center axis X coordinate: -100 mm, center axis Y coordinate: -50 mm) according to the command on the 26th line is specified. Specifically, the approach of the initial point from the position 305, the cutting of the hole 104, and the return from the work 100 to the position 305 are specified, and are newly displayed as the path 306. The path 306 added by the command on line 26 is highlighted by a thick line. In this example, the part showing the behavior of the work by the code column of the new line is shown by the thick line. The thick line is an example of the first distinction mode in which the part showing the behavior of the work by the code column of the new line is displayed. The first distinction mode may be a display other than the thick line.

FIG. 3 is a screen view of the edit screen 202 and the simulation screen 204 described up to the 27th line.
This example shows the state after the ";" key is pressed following the input of "X100." On the 27th line. On the simulation screen 204, the route when the control operation is executed up to the 27th line is displayed.

"X100." Is a command for the hole descending position. The command on line 27 adds a path related to cutting the hole 106 (center axis X coordinate: 100 mm, center axis Y coordinate: -50 mm). Specifically, first, the path 308 that slides from the position 305 to the position 309 of the next initial point is specified. Further, the path 310 corresponding to the approach from position 309, the cutting of the hole 106 and the return to position 309 is identified. Routes 308 and 310 added by the command on line 27 are highlighted by thick lines.

FIG. 4 is a screen view of the edit screen 202 and the simulation screen 204 described up to the 28th line.
This example shows the state after the ";" key is pressed following the input of "Y0" on the 28th line. On the simulation screen 204, the route when the control operation is executed up to the 28th line is displayed.

"Y0" is a command for the hole descending position. The command on the 28th line adds a path related to cutting the hole 108 (center axis X coordinate: 100 mm, center axis Y coordinate: 0 mm). Specifically, first, the path 312 that slides from the position 309 to the position 313 of the next initial point is specified. Further, a path 314 corresponding to the approach from position 313, the cutting of the hole 108 and the return to position 313 is identified. Routes 312 and 314 added by the command on line 28 are highlighted by thick lines.

FIG. 5 is a screen view of the edit screen 202 and the simulation screen 204 described up to the 29th line.
This example shows the state after the ";" key is pressed following the input of "Y50." On the 29th line. On the simulation screen 204, the route when the control operation is executed up to the 29th line is displayed.

"Y50." Is a command for the hole descending position. The command on the 29th line adds a path related to cutting the hole 110 (center axis X coordinate: 100 mm, center axis Y coordinate: 50 mm). Specifically, first, the path 316 that slides from the position 313 to the position 317 of the next initial point is specified. Further, a path 318 corresponding to the approach from position 317, the cutting of the hole 110 and the return to position 317 is identified. Routes 316 and 318 added by the command on line 29 are highlighted by thick lines.

FIG. 6 is a screen view of the edit screen 202 and the simulation screen 204 described up to the 30th line.
This example shows the state after the ";" key is pressed after the input of "X-100." On the 30th line. On the simulation screen 204, the route when the control operation is executed up to the 30th line is displayed.

"X-100 .;" is a command for the hole descending position. The command on line 30 adds a path related to cutting the hole 112 (center axis X coordinate: -100 mm, center axis Y coordinate: 50 mm). Specifically, first, the path 320 that slides from the position 317 to the position 321 of the next initial point is specified. Further, a path 322 corresponding to the approach from position 321 and the cutting of the hole 112 and the return to position 321 is identified. Routes 320 and 322 added by the command on line 30 are highlighted by thick lines.

As shown in FIGS. 2 to 6, it is possible to confirm whether the command is correctly described each time each line is input. The following is an example of writing an erroneous command.

FIG. 7 is a screen view of the edit screen 202 and the simulation screen 204 in which the description is erroneously described on the 30th line.
This example shows the state after the ";" key is pressed following the input of "X-100" on the 30th line. On the simulation screen 204, the route when the control operation is executed up to the 30th line is displayed.

Originally, "X-100 .;" (-100 mm) should be described as a command for the hole descending position, but the input of the decimal point is forgotten and it becomes "X-100;". In this case, the control device of the machine tool 700 interprets "X-100;" as -0.1 mm. Therefore, also in the program editing device, the path related to the cutting of the hole 114 (center axis X coordinate: −0.1 mm, center axis Y coordinate: 50 mm) is added by the command on the 30th line. Specifically, first, a path 324 that slides from the position 317 to the next initial point, the position 325, is specified. Further, path 326 corresponding to approach from position 325, cutting of hole 114 and return to position 325 is identified. Routes 324 and 326 added by the command on line 30 are highlighted by thick lines.

The omission of the decimal point on the edit screen 202 is not so noticeable, but the difference in the path on the simulation screen 204 is obvious. In this way, the appearance of the route makes it easier for the user to recognize coding mistakes. In addition to the missing decimal point, a positive / negative error (for example, "X100 .;" on the 30th line), a parameter error (for example, "Y-100 .;" on the 30th line), or a G code error (for example). , Mistake of commands in different directions of rotation), etc. can be easily noticed.

Further, as described above, not only the simulation result in the input work of the NC program may be highlighted, but also the simulation result may be highlighted in the review work of the NC program. Specifically, when the user moves the cursor 206 to review the NC program, the route corresponding to the line where the cursor 206 is located is highlighted.

FIG. 8 is a screen view of the edit screen 202 and the simulation screen 204 in which the cursor 206 is returned to the 29th line.
This example shows a state in which the up arrow key is pressed twice in FIG. 6 to move the cursor 206 to the 29th line. On the simulation screen 204, the route when the control operation is executed up to the 30th line is displayed as in FIG. However, the route 320 and the route 322 added by the command on the 30th line are not highlighted. Instead, the paths 316 and 318 added by the command on line 29 where the cursor 206 is located are highlighted by white lines. In this example, the part showing the behavior of the work by the code column of the line pointed to by the moved cursor is shown by the white line. The white line is an example of the second distinction mode in which the part showing the behavior of the work by the code column of the line pointed to by the moved cursor is displayed. The second distinction mode may be a display other than the white line. Further, the second distinction mode may be displayed in the same manner as the first distinction mode.

FIG. 9 is a screen view of the edit screen 202 and the simulation screen 204 in which the cursor 206 is returned to the 28th line.
This example shows a state in which the up arrow key is pressed once in FIG. 8 to move the cursor 206 to the 28th line. On the simulation screen 204, the route when the control operation is executed up to the 30th line is displayed as in FIG. However, the route 312 and the route 314 added by the command on the 28th line where the cursor 206 is located are highlighted by white lines.

In this way, when the cursor 206 is moved to the line that has already been input, the path corresponding to the line where the cursor 206 is located is highlighted by a white line. Therefore, it is possible to understand at a glance which line corresponds to which route. For example, when a user wants to modify a certain route, it is troublesome and easy to misunderstand on the edit screen 202 to find out on which line the command corresponding to the route is described. In the case of the present embodiment, the corresponding line can be specified by moving the cursor 206 up and down until the route of interest by the user is highlighted on the simulation screen 204, so that the user's labor is small and a misunderstanding is made. Can be prevented.

FIG. 10 is a functional block diagram of the program editing device 400.
Each component of the program editing device 400 includes a CPU (Central Processing Unit), a computing unit such as various coprocessors, a storage device such as a memory and a storage device, hardware including a communication line connecting them, and a storage device. It is realized by software that is stored and supplies processing instructions to the processor. The computer program may be composed of a device driver, an operating system, various application programs located on the upper layer thereof, and a library that provides common functions to these programs. Each block described below shows a block for each function, not a configuration for each hardware.

The program editing device 400 includes an interface processing unit 410, a data processing unit 440, and a data storage unit 450.
The interface processing unit 410 accepts operations from the user via a keyboard, mouse, touch panel, etc., and is in charge of processing related to the user interface such as image display and audio output. The interface processing unit 410 may be in charge of interface processing related to communication via the network. The data processing unit 440 executes various processes based on the data acquired by the interface processing unit 410 and the data stored in the data storage unit 450. The data processing unit 440 also functions as an interface between the interface processing unit 410 and the data storage unit 450. The data storage unit 450 stores various data.

The interface processing unit 410 includes an input unit 420 that accepts data input and an output unit 430 that outputs various information such as images and sounds.
The input unit 420 includes a reception unit 422 that receives a character code, a number code, a symbol code, various control codes, and the like by pressing a key.

The output unit 430 includes a program display unit 432, an image display unit 434, and a screen display unit 436.
The program display unit 432 generates and displays the edit screen 202. The image display unit 434 generates and displays the simulation screen 204. The screen display unit 436 generates and displays a G-code input guidance screen. The G-code input guidance screen will be described later in relation to FIG. The program display unit 432 and the image display unit 434 display the edit screen 202 and the simulation screen 204 at the same time.

The data processing unit 440 includes an editing unit 442 and a simulation unit 444.
The editorial unit 442 executes the editing process of the NC program. The simulation unit 444 simulates the behavior of the work by the NC program.

The data storage unit 450 includes a storage storage area 460 and a temporary storage area 470. A non-volatile memory such as a hard disk drive device or a flash memory is used for the storage storage area 460. A volatile memory such as a RAM (Random access memory) is used for the temporary storage area 470.

The NC program file 462, the work definition file 464, and the like are stored in the storage storage area 460.
The NC program file 462 will be described later in relation to FIG. The work definition file 464 includes data regarding the shape of the work before machining and data regarding the shape of the work after machining.

The NC program code table 472, the cursor position 474, the work 3D model 476, the route table 478, and the like are stored in the temporary storage area 470.
The NC program code table 472 and the cursor position 474 will be described later in relation to FIGS. 11 to 13. The work 3D model 476 is a three-dimensional model of the work machined in the machine tool 700. The work 3D model 476 at each machining stage is associated with the line number of the NC program in which the instruction regarding the machining is described. The route table 478 stores each route in which the cutting edge of the tool moves in the three-dimensional space. Each route is associated with the line number of the NC program in which the instruction regarding the movement is described.

FIG. 11 is a data structure diagram of the cursor position 474 and the NC program code table 472 corresponding to FIG. 2.
The NC program code table 472 has a row record for each row, and a row number and a code column of the row are set in each row record. The NC program is edited based on the NC program code table 472, and the edit screen 202 is displayed. The cursor position 474 indicates the line number of the cursor 206 displayed on the edit screen 202 and the index of the code column of the line. The index is a variable that identifies an element in the array, has a start number of 0, and indicates the order of the elements in the array. In this example, for a code string containing N codes, each code is specified by an index of 0, 1, ... N-1. Since the cursor 206 points to the first character on the 27th line in FIG. 2, the cursor position 474 is "27: 0". The code column on the 27th line is empty.

FIG. 12 is a data structure diagram of the cursor position 474 and the NC program code table 472 corresponding to FIG.
In the NC program code table 472, "X100 .;" is set in the code column of the 27th line as compared with FIG. 11, and the line records from the 28th line to the 31st line are added. Since the cursor 206 points to the first character on the 31st line in FIG. 6, the cursor position 474 is "31: 0". The code column on the 31st line is empty.

FIG. 13 is a data structure diagram of the cursor position 474 and the NC program code table 472 corresponding to FIG.
NC program code table 472 is the same as FIG. Since the cursor 206 points to the sixth character on the 29th line in FIG. 8, the cursor position 474 is “29: 5”.

FIG. 14 is a data structure diagram of the NC program file 462 corresponding to FIGS. 12 and 13.
This NC program file 462 is converted from the NC program code table 472 shown in FIGS. 12 and 13, and the contents of the NC program itself are the same. The NC program file 462 is in text format, not in table format. In the text format, the line feed code indicated by "↓" in the figure is inserted between the code columns of each row in the table format. Further, it is also possible to convert to the NC program code table 472 by providing a line record for each code column separated by the line feed code in the NC program file 462.

15 and 16 are flowcharts showing the main processing process in the program editing apparatus 400.
When the user is instructed to read the NC program file 462, the reading process is executed (S12).

In the reading process, the editorial unit 442 converts the NC program file 462 into the NC program code table 472. Specifically, the editorial unit 442 stores the code columns separated by the line feed code in the row record in order. That is, when the NC program file 462 contains N line feed codes, N + 1 line records are provided in the NC program code table 472. The line number at the cursor position 474 is the number of the last line. The index at the cursor position 474 should be the same as the number of codes contained in the code column of the last row. As a result, the cursor 206 is set at the end.

If the reading of the NC program file 462 is not instructed, one row record with an empty code column is generated. The line number of the cursor position 474 is 1, and the index is 0.

When the character key is pressed (Y in S14), the reception unit 422 accepts the character code, and the editing unit 442 executes the character insertion process (S16). In the character insertion process, the editorial unit 442 inserts the character corresponding to the character key into the part specified by the index at the cursor position 474 in the code column specified by the line number at the cursor position 474, and the index value. Is increased by 1. The program display unit 432 redisplays the line in which the character is inserted, and displays the cursor 206 moved to the right. Then, the process returns to S14.

When the number key is pressed (Y in S18), the reception unit 422 accepts the number code, and the editorial unit 442 executes the number insertion process (S20). In the number insertion process, the editorial unit 442 inserts a number corresponding to the number key in the code column specified by the line number at the cursor position 474 at the position specified by the index at the cursor position 474, and the index value. Is increased by 1. The program display unit 432 redisplays the line in which the number is inserted, and displays the cursor 206 moved to the right. Then, the process returns to S14.

When the symbol key is pressed (Y in S22), the reception unit 422 accepts the symbol code, and the editorial unit 442 executes the symbol insertion process (S24). In the symbol insertion process, the editorial unit 442 inserts a symbol corresponding to the symbol key in the code column specified by the line number at the cursor position 474 at the position specified by the index at the cursor position 474, and the index value. Is increased by 1. The program display unit 432 redisplays the line in which the symbol is inserted and displays the cursor 206 moved to the right. Then, the process returns to S14.

When the right arrow key is pressed (Y in S26), the reception unit 422 receives the right arrow code, and the editorial unit 442 executes the right arrow movement process (S28). In the right arrow movement process, the editorial unit 442 determines whether or not the cursor 206 is at the end of the line. Specifically, the editorial unit 442 determines whether or not the index value at the cursor position 474 matches the number of codes in the code column of the row. If the cursor 206 is before the end of the line, the editorial unit 442 increments the index value by 1, and the program display unit 432 displays the cursor 206 moved to the right.

If the cursor 206 is at the end of a line, the editorial unit 442 further determines whether or not the cursor 206 is at the last line. Specifically, the editorial unit 442 determines whether or not the line number at the cursor position 474 is the number of the last line. When the cursor 206 is on the last line, the program display unit 432 displays as it is.

When the cursor 206 is at the end of a line other than the last line, the editorial unit 442 increments the value of the line number at the cursor position 474 by 1 and sets the index value to 0. Then, the program display unit 432 displays the cursor 206 at the beginning of the line one line below. When the cursor 206 moves to the lower line by the operation of the right arrow key, the simulation process is executed (S29). By the simulation process, the highlighting of the white line is switched to the part of the behavior by the new cursor line. If the code column of the original cursor line has been changed, a simulation image showing the behavior of the changed code column in the original cursor line is displayed. Then, the process returns to S14. The simulation process will be described in detail in relation to FIG.

When the left arrow key is pressed (Y in S30), the reception unit 422 receives the left arrow code, and the editorial unit 442 executes the left arrow movement process (S32). In the left arrow movement process, the editorial unit 442 determines whether or not the cursor 206 is at the beginning of the line. Specifically, the editorial unit 442 determines whether or not the index at the cursor position 474 is 0. If the cursor 206 is after the beginning of the line, the editorial unit 442 decrements the index value at the cursor position 474 by 1, and the program display unit 432 displays the cursor 206 moved to the left.

If the cursor 206 is at the beginning of a line, the editorial unit 442 further determines whether or not the cursor 206 is on the first line. Specifically, the editorial unit 442 determines whether or not the line number of the cursor position 474 is 1. When the cursor 206 is at the beginning of the first line, the program display unit 432 displays as it is.

When the cursor 206 is at the beginning of the second and subsequent lines, the editorial unit 442 decrements the value of the line number at the cursor position 474 by 1 and makes the index value the same as the number of codes in the upper line. Then, the program display unit 432 displays the cursor 206 at the end of the line one line above. When the cursor 206 moves to the upper line by the operation of the left arrow key, the simulation process is executed (S33). By the simulation process, the highlighting of the white line is switched to the part of the behavior by the new cursor line. If the code column of the original cursor line has been changed, a simulation image showing the behavior of the changed code column in the original cursor line is displayed. Then, the process returns to S14.

When it is determined that the left arrow key is not pressed (N in S30), the process proceeds to the process of S34 shown in FIG.

When the up arrow key is pressed (Y in S34), the reception unit 422 receives the up arrow code, and the editorial unit 442 executes the up arrow movement process (S36). In the up arrow movement process, the editorial unit 442 determines whether or not the cursor 206 is on the first line. Specifically, the editorial unit 442 determines whether or not the line number of the cursor position 474 is 1. When the cursor 206 is on the first line, the program display unit 432 displays as it is.

When the cursor 206 is on the second and subsequent lines, the editorial unit 442 decrements the value of the line number at the cursor position 474 by 1. If the index value at the cursor position 474 exceeds the number of codes in the upper line, the editorial unit 442 sets the index value to be the same as the number of codes. Then, the program display unit 432 displays the cursor 206 on the upper line. When the cursor 206 moves to the upper line by the operation of the up arrow key, the simulation process is executed (S37). By the simulation process, the highlighting of the white line is switched to the part of the behavior by the new cursor line. If the code column of the original cursor line has been changed, a simulation image showing the behavior of the changed code column in the original cursor line is displayed. Then, the process returns to S14.

When the down arrow key is pressed (Y in S38), the reception unit 422 accepts the down arrow code, and the editorial unit 442 executes the down arrow movement process (S40). In the down arrow movement process, the editorial unit 442 determines whether or not the cursor 206 is on the last line. Specifically, the editorial unit 442 determines whether or not the line number at the cursor position 474 is the number of the last line. If the cursor 206 is on the last line, it is displayed as it is.

When the cursor 206 is on a line other than the last line, the editorial unit 442 increments the value of the line number at the cursor position 474 by 1. If the index value at the cursor position 474 exceeds the number of codes in the lower line, the editorial unit 442 sets the index value to be the same as the number of codes. Then, the program display unit 432 displays the cursor 206 on the lower line. When the cursor 206 moves to the lower line by the operation of the down arrow key, the simulation process is executed (S41). By the simulation process, the highlighting of the white line is switched to the part of the behavior by the new cursor line. If the code column of the original cursor line has been changed, a simulation image showing the behavior of the changed code column in the original cursor line is displayed. Then, the process returns to S14.

When the ";" key is pressed (Y in S42), the reception unit 422 inputs the ";" code, and the editorial unit 442 executes line feed processing (S44). In the line feed process, the editorial unit 442 inserts a new line after the line where the cursor 206 is located. The line number of each line after the insertion point is decremented by one. Further, the editorial unit 442 moves the part after the cursor 206 to the code column of the new line in the code column of the line where the cursor 206 is located. That is, the code string is separated at the position of the cursor 206. The editorial unit 442 increments the value of the line number at the cursor position 474 by 1, and also sets the index value to 0. The program display unit 432 displays the cursor 206 moved to the beginning of the lower line. Then, the simulation unit 444 executes the simulation process (S45).

When the delete key is pressed (Y in S46), the reception unit 422 accepts the deletion code, and the editorial unit 442 executes the deletion process (S48). In the deletion process, the editorial unit 442 determines whether or not the cursor 206 is at the end of the line. Specifically, the editorial unit 442 determines whether or not the index value matches the number of codes in the line. If the position of the cursor 206 is not the end of a line, the editorial unit 442 deletes the code pointed to by the index in the code column of the line, and the program display unit 432 redisplays the line. If the cursor 206 is at the end of a line, the editorial unit 442 adds the code column of the next line to the code column of the upper line. The next line disappears, and the lines below it are moved up. The program display unit 432 redisplays the line after the line where the cursor 206 is located. Then, the simulation unit 444 executes the simulation process (S49).

When the end instruction is received (Y in S50), the writing process is executed (S52). In the writing process, the editorial unit 442 converts the NC program code table 472 into the NC program file 462 and saves it. Then, the main process is terminated.

FIG. 17 is a flowchart showing the simulation processing process.
The simulation unit 444 sequentially specifies the row records in the NC program code table 472 (S60). The simulation unit 444 calculates the route according to the command of the code column of the row record (S62). The method of calculating the route by a command such as a G code may be the same as that of the prior art. The calculated route is stored in the route table 478 in association with the row number of the row record. The simulation unit 444 deforms the work 3D model 476 according to the processing content according to the command of the code column of the row record (S64). The method of transforming the work 3D model 476 by a command such as a G code may be the same as that of the prior art. The modified work 3D model 476 is stored in the temporary storage area 470 in association with the line number of the line record. The simulation unit 444 returns to S60 and repeats the processes of S62 and S64 until just before the last line (N of S66).

When processing up to one line before the last line (Y in S66), the image display unit 434 draws the latest work 3D model 476 on the simulation screen 204 (S68).

If the cursor 206 is on the last line (Y in S70), the image display unit 434 sets a thick line attribute on the line indicating the route obtained by the command of the line immediately before the last line (S72). That is, when the line number of the cursor position 474 matches the line number of the last line, the route corresponding to the line number -1 of the last line is highlighted by a thick line.

On the other hand, if the cursor 206 is above the last line (N in S70), the image display unit 434 sets a white attribute on the line indicating the route obtained by the command of the cursor line (S74). That is, when the line number of the cursor position 474 does not match the line number of the last line, the path corresponding to the line number of the cursor position 474 is highlighted by a white line.

The image display unit 434 draws a line of each of the above-mentioned paths on the simulation screen 204 (S76). Then, the process returns to S14.

As a result, as described in relation to FIGS. 2 to 7, when the ";" key is pressed in the input work of the NC program, an empty line is added, the cursor 206 moves to that line, and the original line is input. A thick line route appears according to the command. Therefore, the user can immediately confirm that the coding was performed as expected. In addition, since we are always aware of the stage of coding, it is easy to prevent duplication and omission of descriptions due to misunderstanding.

Further, as described in relation to FIGS. 8 and 9, when the cursor 206 is moved in the NC program review work, the route according to the command of the line where the cursor 206 is located changes to a white line. Therefore, the user can easily understand the relationship between the description of the program and the behavior of the work.

[Modification 1]
A guidance screen for command input may be displayed to assist coding. Here, an example of a guidance screen for inputting a G code is shown.

FIG. 18 is a screen view of the G code input guidance screen.
The G code input guidance screen 500 guides the description of the G code on the edit screen 202. When the user touches the guidance button 602 (FIG. 2) in the edit screen 202, the screen display unit 436 displays the guidance screen 500 (FIG. 18). When the user inputs a G code number in the G input area 502, the G code type (eg, "helical drilling cycle") and the argument configuration (eg, "G439 (X_Y_Z_R_H_I_J_K_U_V_W)") are displayed in each argument. The corresponding input areas 504a-h are displayed. When the user selects the input area 504 of any of the arguments, the value of the argument can be input to the input area 504. In this example, the cursor 206 is displayed in the input area 504a of the argument X selected by the user, and represents a state in which the value of the argument X is accepted. Further, the conceptual diagram 506 and the explanatory text 508 regarding the selected argument X are displayed. By referring to the conceptual diagram 506 and the description 508 regarding the argument X, the user can understand the meaning of the argument X as a variable. The value of the input argument is displayed in the argument area 514. The same applies to other arguments. "*" In the figure indicates that the value input is indispensable. When the user touches the insert button 510, the G code and the value of each argument are inserted into the cursor position 474 of the edit screen 202 according to a predetermined format. If the user touches the back button 512, nothing is inserted. By doing so, the user does not need to check the format for each G code, and it becomes easy to input the description related to the G code. The user may be able to select the G code from the list displayed in front of the G code input guidance screen without directly inputting the G code number into the input area 502.

[Modification 2]
Modification 2 relates to displaying a guidance message by touching an icon button. The program editing device shall use a touch panel.

There is a problem that it is difficult to understand what the icon button is for by looking at it. I want to display a button description in a guidance message, but I cannot secure a fixed message area. On a personal computer, a guidance message can be displayed by mouse over, but an operation like mouse over cannot be performed on the touch panel.

FIG. 19 is a diagram showing an example of the guidance message 604b on the edit-simulation screen. The screen display unit 436 has a button display unit that displays a button 600 such as a button 600a for executing displaying a simulation image. Further, the input unit 420 of the interface processing unit 410 has a touch detection unit that detects a touch operation on the touch panel. When the touch detection unit detects a long touch of the icon button 600a, the button display unit displays a guidance message 604b indicating the function "simulation start" corresponding to the icon button 600a at a position close to the icon button 600a. Similarly for the other icon buttons 600, when the event detection unit detects a long touch of the icon button 600, the button display unit issues a guidance message 604b indicating the function content corresponding to the icon button 600 to the icon button 600. Display in close proximity to. In addition, the message display unit displays the function message 606 "Highlighted in the order of execution of NC programs." The "Start Simulation" function is not executed even if the touched finger is released while the guidance message is displayed. However, if you touch it briefly, the simulation start function is executed. The event detection unit determines that the long touch of the icon button 600 has been performed when the time during which the touch to the icon button 600 continues exceeds the reference value. If the time during which the touch to the icon button 600 continues is less than the reference value, the event detection unit determines that the short touch of the icon button 600 has been performed. Further, the data storage unit 450 shall have a guidance message storage unit in the storage storage area 460 for storing a guidance message 604 indicating the function content corresponding to the icon button 600 for each icon button 600.

The icon button 600 shown in FIG. 19 will be described.
When the touch detection unit detects a long touch (long press) of the file list button 600g, the screen display unit 436 transitions to the file list screen. When the touch detection unit detects a long touch (long press) of the edit button 600h, the screen display unit 436 transitions to the file editing screen selected by the user on the file list screen. When the touch detection unit detects a long touch (long press) of the simulation button 600i, the screen display unit 436 transitions to a screen for simulating the NC program set in the file being edited. When the touch detection unit detects a long touch (long press) of the foreground / background switching button 600j, the screen display unit 436 switches between the foreground screen and the background screen. For example, when driving an NC program edited on the background screen, it is necessary to execute the program on the foreground screen, so the button switches to the foreground screen.

FIG. 20 is a screen view of background editing. The background editing screen has icon buttons 600g to j, 600r, 600s. The background editing screens shown in FIGS. 20 to 23 are displayed on the operation screen 704 of the operation panel 702, similarly to the “editing screen 204 and simulation screen 204” of FIGS. 2 to 9. Further, the background editing screen can be switched between "editing screen 204 and simulation screen 204".

The icon button 600 shown in FIG. 20 will be described.
When the touch detection unit detects a long touch (long press) of the additional button 600r, the data creation unit creates new data. When the touch detection unit detects a long touch (long press) of the display information switching button 600s, the button display unit displays the toolbar of the second layer. By changing the check status of the display items, the display items displayed on the screen can be changed.

FIG. 21 is a diagram showing an example of the guidance message 604c on the background editing screen. When the touch detection unit detects a long touch of the icon button 600s, the button display unit displays a guidance message 604c indicating the function "change display information" corresponding to the icon button 600s at a position close to the icon button 600s.

FIG. 22 is a diagram showing a state in which a process is selected on the background editing screen. With any of the steps selected, the button display unit further displays the icon buttons 600t to w.

The icon button 600 shown in FIG. 22 will be described.
When the touch detection unit detects a long touch (long press) of the edit switching button 600t, the editorial unit 442 switches the edit mode of the machining process. By switching the edit mode, the NC program of the machining process set interactively can be edited manually. When the touch detection unit detects a long touch (long press) of the machining ON / OFF button 600u, the switching section switches between execution / non-execution of the machining process. By setting the machining to OFF, the machining process is not output to the NC program. When the touch detection unit detects a long touch (long press) of the delete button 600v, the data deletion unit deletes the data selected by the user. When the touch detection unit detects a long touch (long press) of the duplication button 600w, the data duplication unit duplicates the data selected by the user.

FIG. 23 is a diagram showing an example of the guidance message 604d on the background editing screen. When the touch detection unit detects a long touch on the icon button 600u, the button display unit displays a guidance message 604d indicating the function "machining OFF" corresponding to the icon button 600u at a position close to the icon button 600u. Processing OFF is a function of invalidating the processing process. The process set to machining OFF is not executed.

[Other variants]
Further, the highlighting mode on the simulation screen 204 may be other than a thick line or a white line. A specific color or brightness may be applied to the path to be emphasized. Alternatively, the route to be emphasized may be displayed by animation. The highlighting described above is an example of display in a particular embodiment. The route corresponding to the illustrated highlighting may be displayed in a manner that can be distinguished from other routes by normal display.

Further, the display mode may be the same for the route illustrated by the thick line and the route illustrated by the white line. Both may be displayed with lines of the same thickness, or both may be displayed with lines of the same line type. Both may be displayed with lines of the same color, or both may be displayed with lines of the same brightness. Also, both may be displayed with the same animation.

Further, on the simulation screen 204, the route corresponding to the number of the line below the line where the cursor is located may not be displayed, and only the route corresponding to the line where the cursor is located may be displayed. That is, for example, in FIG. 8, it is not necessary to display the route 320 and the route 322. Further, it is not necessary to display the route 316, the route 318, the route 320, and the route 322 in FIG. As a specific process, in S66 of FIG. 17, it is determined whether or not the simulation unit 444 has completed the process up to the cursor line. If the cursor line has not been processed (N in S66), the process returns to S60 and the processing of S62 and S64 is repeated. If the cursor line is processed (Y in S66), the image display unit 434 draws the work 3D model 476 on the simulation screen 204 (S68).

Further, on the simulation screen 204, only the route may be displayed and the work 100 may not be displayed. As specific processing, the processing of S64 and the processing of S68 may be omitted.

Further, on the simulation screen 204, only the work 100 may be displayed and the route may not be displayed. As specific processing, the processing of S72, the processing of S74, and the processing of S76 may be omitted.

Further, in the main process, the simulation process may be executed after the character insertion process, the number insertion process, and the symbol insertion process. By doing so, when the command is modified by inserting the code, the simulation with the modified content is displayed.

Further, when the line feed key is input on the edit screen 202, ";" may be automatically input at the beginning of the new line.

The simulation process described in relation to FIG. 17 is usually executed from the beginning of the NC program, but it does not have to be executed from the beginning of the NC program. For example, the simulation process may be executed from the middle of the NC program. In that case, in S60 of FIG. 17, the simulation unit 444 starts specifying the row record in the NC program code table 472 from the code string in the middle of the simulation. For example, the reception unit 422 may accept the designation of the code column for starting the simulation, and the simulation unit 444 may start the processing after S60 from the row record of the designated code column. The reception unit 422 may accept the line number of the designated code column, or may accept a touch operation or a click operation for the designated code column. Then, the simulation image showing the behavior of the work is displayed from the middle of the NC program. Further, the simulation may be executed from a plurality of lines before the code column added by the user. The number of rows traced back from the added code column is, for example, in the range of 100 to 200 rows. The number of lines to be traced back may be determined in advance or may be specified by the user. If it is decided in advance, a predetermined number of retroactive lines is stored in the storage storage area 460. When specified by the user, the reception unit 422 accepts the number of retroactive lines. The simulation unit 444 subtracts the number of retroactive lines from the line number of the code column added to the NC program, and identifies the line record for starting the simulation in S60. As a result, the worker can easily confirm the location of the changed NC program.

In addition, regarding the restart of the simulation after changing the NC program, the user operation is performed so that the simulation video is restarted retroactively within a range of 5 to 15 seconds from the place where the code is newly added or the place where the code is edited. Alternatively, it may be automatically set in the simulation unit 444. For example, the unit operation time (line-by-line moving image playback time) allocated to one line in the simulation operation may be determined. Alternatively, the operation time (video playback time for each command) of the simulation image showing the behavior of the work assigned to each line according to the command for each line of the NC program may be calculated. In the simulation unit 444, the moving image reproduction time may be determined according to the type of command. The simulation unit 444 calculates the reproduction time of the moving image to be reproduced retroactively by adding up the operation times (moving image reproduction time) of each line in ascending order from the new line or the editing line. Then, the simulation unit 444 identifies the line for starting the moving image reproduction within the range of the moving image reproduction time of 5 seconds to 15 seconds. In this way, when a new row of code columns is accepted, or when one row of code columns is modified, video playback in the range of 5 to 15 seconds from that code column in the simulation image is played. You can play back the simulation image as a movie by going back in time. Even in the range of 5 to 15 seconds of the program check, the actual machining may take longer (for example, 1 hour), and the actual machining time and the operation time of the simulation are different. If the program check is performed retroactively within the range of 5 to 15 seconds, the machining process that takes a long time can be efficiently confirmed in a short time.

The target machine tool 700 may be other than the machining center. For example, the above-described embodiment or modification may be applied to a turning center, a multi-tasking machine, or the like.

Each of these machine tools 700 controls the positions of a machine tool for working, an operation panel 702 having a screen for operating the machine tool, and a functional part in the machine tool for working. It has a numerical control unit (NC device). If the machine tool 700 is a machining center, the machine tool includes a cutting tool, a spindle, a servo motor that rotates the spindle, a pallet, an ATC (Automatic Tool Changer), a tool magazine, etc. , Perform processing such as drilling and threading. If the machine tool 700 is a turning center, the machine tool includes a cutting tool, a rotary shaft, a servomotor for rotating the rotary shaft, a turret, an ATC, a tool magazine, and the like, and mainly performs turning. The spindle of the machining center and the turret of the turning center correspond to the functional parts in the machining part.

The numerical control unit controls the position of the functional unit and the selection of the tool in the work unit by performing numerical control on the servo motor or ATC of the work unit directly or via PLC (Programmable Logic Controller). The numerical control unit of the machining center moves the spindle, which is a functional unit. The numerical control unit of the turning center moves the turret, which is a functional unit. As a result, the cutting edge, which is the place of action of processing, moves.

The functional part of the work part may be another laser irradiation part, a powder ejection part, or the like. That is, the numerical control unit may move the laser irradiation unit, the powder ejection unit, and the like. In the case of the laser irradiation unit, the laser beam corresponds to the processing action point, and in the case of the powder ejection part, the distributed area of the scattered powder corresponds to the processing action point. That is, the functional part of the work part is a part that manipulates the action part of the processing.

The simulation unit 444, the image display unit 434, and the screen display unit 434 described above are simulations showing the behavior of the machine tool based on the program for the machine tool 700 and the information of the function unit stored in the machine tool 700. This is an example of a display control unit that controls the display of an image on the screen. The simulation unit 444 deforms the work 3D model 476 in the virtual three-dimensional space according to the processing content. The simulation image showing the behavior of the work is a two-dimensional image generated by the image display unit 434 assuming that the work 3D model 476 is observed from a predetermined viewpoint. Mainly, the shape of the work that changes each time by stepwise processing is drawn. In the above example, the shape of the hole formed in the work by cutting is drawn. The simulation unit 444 further calculates the processing action location (cutting edge path, laser beam, powder distribution area, etc.) in the virtual three-dimensional space. In the simulation image showing the behavior of the work, the drawing (line of the path of the cutting edge, the line of the laser beam and the distribution of the powder) showing the place of action of the processing generated by the image display unit 434 assuming that this place of action is observed from a predetermined viewpoint Area display, etc.) is also included.

The program for the machine tool 700 refers to, for example, an NC program, and the simulation unit 444 deforms the work 3D model 476 based on this program and specifies the place of action of machining. Further, the simulation unit 444 also uses the information of the functional unit stored in the functional unit information storage unit in the machine tool 700. The information on the functional unit includes information such as the shape of the functional unit, the function of the functional unit, the position of the functional unit in the machine tool 700, the reference point of the functional unit, and its position.

In this way, the image in which the shape of the work that changes due to the machining of the machine tool 700 is drawn is a simulation image. Further, as described above, the simulated image may also include the action points of the processing. The simulation image showing the behavior of these works is a plurality of simulation still images or simulation moving images that change sequentially in time series.

The present invention is not limited to the above-described embodiment or modification, and the components can be modified and embodied within a range that does not deviate from the gist. Various inventions may be formed by appropriately combining a plurality of components disclosed in the above-described embodiments and modifications. In addition, some components may be deleted from all the components shown in the above embodiments and modifications.

100 work, 102 hole, 104 hole, 106 hole, 108 hole, 110 hole, 112 hole, 114 hole, 202 edit screen, 204 simulation screen, 206 cursor, 302 route, 304 route, 305 position, 306 route, 308 route, 309 position, 310 route, 312 route, 313 position, 314 route, 316 route, 317 position, 318 route, 320 route, 321 position, 322 route, 324 route, 325 position, 326 route, 400 program editing device, 410 interface processing. Unit, 420 input unit, 422 reception unit, 430 output unit, 432 program display unit, 434 image display unit, 436 screen display unit, 440 data processing unit, 442 editorial unit, 444 simulation unit, 450 data storage unit, 460 storage and storage unit. Area, 462 NC program file, 464 work definition file, 470 temporary storage area, 472 NC program code table, 474 cursor position, 476 work 3D model, 478 route table, 500 guidance screen, 502 input area, 504 input area, 506 concepts. Figure, 508 description, 510 insert button, 512 back button, 514 argument area, 600 icon button, 602 guidance button, 604 guidance message, 606 function message, 700 machine tool, 702 operation panel, 704 operation screen.

Claims (8)

A reception unit that accepts NC program files for machining while executing NC programs with multiple lines on a machine tool,
A program display unit that displays a plurality of lines by arranging code columns in each line of the NC program of the NC program file in the order of execution.
(i) upon receiving a code sequence of a new row in the NC program, the simulation image showing the behavior of by that engineering work on code string of the new line, or, (ii) in said NC program possess upon receiving a change in the code sequence of one row, an image display unit for displaying the simulation image, which shows the behavior of the machine tool according to the code sequence of the modified rows, to,
From the new row or the changed row of the code columns of the NC program when the code column of the new row is accepted or the code column of the one row is changed. A program editing device that reproduces the simulation image from a line in the middle of the previous step. The first aspect of the simulation image, wherein the reproduction of the simulation image is performed retroactively from the code column of the new row or the code column of the changed row to the time before the moving image reproduction time in the range of 5 seconds to 15 seconds. Program editing device. The reproduction of the simulation image is performed from the code column of the row retroactive by the number of retrograde rows stored in advance from the new row or the modified row or the number of retrograde rows specified by the user, according to claim 1 or 2. Described program editing device. Further, it has a screen display unit for displaying an input guidance screen having an input area for each parameter used in the command according to the type of the command to be included in the code string.
The receiving unit the value entered in the input area of the input guidance screen, added to the code sequence as a parameter of the instruction, the program editing apparatus according to any one of claims 1 to 3. It has a button display unit, which displays a button for executing displaying the simulation image, and has a button display unit.
The program editing device according to any one of claims 1 to 4, wherein when the button is pressed and held for a long time, guidance of a function to be executed when the button is pressed is displayed near the button. An operation panel that has a screen and is used to operate machine tools,
The work department for work and
A numerical control unit that controls the position of the functional unit in the work unit for work,
Based on the program for the machine tool including the unique machine information of the machine tool and the information of the functional unit stored in the machine tool, a simulation image showing the behavior of the machine tool is displayed and controlled on the screen. With a display control unit,
When the display control unit (i) receives a code column of a new line in the program, the display control unit is (i) a simulation image showing the behavior of the work by the code column of the new line, or (ii) the program. When a change in the code column of one row is accepted, a simulation image showing the behavior of the work by the code column of the changed row is displayed and controlled .
When the code column of the new row is accepted, or when the code column of the one row is changed, the code column of the program is before the new row or the changed row. A machine tool that reproduces the simulation image from a line in the middle of. On the screen on which the button for executing the simulation image display is displayed, when the button is pressed and held, the guidance of the function to be executed when the button is pressed is displayed near the button. that machine tool according to claim 6. A function to accept NC program files for machining while executing an NC program with multiple lines on a machine tool,
A function to display multiple lines by arranging the code columns in each line of the NC program of the NC program file in the order of execution.
(i) upon receiving a code sequence of a new row in the NC program, the simulation image showing the behavior of by that engineering work on code string of the new line, or, (ii) in said NC program When a change in the code column of one row is accepted, a function to display a simulation image showing the behavior of the work by the code column of the changed row is displayed.
From the new row or the changed row of the code columns of the NC program when the code column of the new row is accepted or the code column of the one row is changed. A program characterized by having a computer exert a function of reproducing the simulation image from a line in the middle of the previous step.

Images