JP2009076019A - Numerical control device, numerical control program, and computer-readable recording medium recording numerical control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain the magnification change and displacement of a plotting object in display using equipment usually equipped at an numerical control device. <P>SOLUTION: When a manual pulse generator is operated, the rotating direction (S1) and rotating amount (S3) of a handle and magnification information (S5) are acquired. If it is not a manual mode (S10: No), mode selection is acquired from an axis selection switch (S25). In order to displace and enlarge/reduce an image in display according to the mode, present coordinates are acquired (S35, S55, S70, S80), and coordinates after displacement and enlargement/reduction are computed (S40, S60, S75, S85). Plotting is output to the computed coordinate position (S90). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a numerical control device, a numerical control program, and a computer-readable recording medium on which the numerical control program is recorded. Specifically, the present invention relates to a numerical control device and a program that can easily move an image being displayed and change the magnification. It is.

  In general, a machine tool controlled by a numerical control device includes a display device that has a function of displaying a programmed tool path and the like graphically. In such a drawing function, there is a desire to easily perform enlargement / reduction and change of coordinate position.

On the other hand, in the programmable display, a proposal has been made that a part of a drawing area can be selected with a mouse and opened in a separate window, or the magnification of a selected drawing range can be arbitrarily designated (for example, Patent Document 1). reference).
JP 2007-65914 A

  However, in order to apply the above conventional technique to a numerical control device of a machine tool, it is necessary to provide a mouse, and there is a problem that it takes a work time to set the magnification designation screen.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to make it possible to change or move the magnification of a drawing target being displayed by using a standard equipment of a numerical control device. .

  In order to achieve the above object, a numerical control device according to claim 1 of the present invention is a numerical control device for a machine tool that processes a work by operating a tool according to a processing program, and a display device that displays characters or images; Manual pulse generator operated by a handle, and designation means for designating whether the operation of the manual pulse generator is used for controlling the axial feed device of the machine tool or for drawing control on the display device A coordinate acquisition unit that acquires target coordinates to be drawn on the display device, an operation amount acquisition unit that acquires a handle operation amount of the manual pulse generator, and when the drawing control is specified by the specification unit, Based on the coordinates acquired by the coordinate acquisition means and the operation amount acquired by the operation amount acquisition means, the drawing target drawn on the display device is moved or scaled. Characterized in that a drawing control means for.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the numerical control device includes an operation direction acquisition means for acquiring an operation direction of the handle of the manual pulse generator, and the operation And determining means for determining whether to enlarge or reduce based on the operation direction acquired by the direction acquiring means.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the manual pulse generator is desired from among the X axis, the Y axis, and the Z axis. The drawing control means draws the drawing target on the display device according to the axis selected by the selection switch.

  A numerical control program according to a fourth aspect of the present invention causes a computer to function as various processing means according to the first aspect of the present invention.

  A recording medium according to a fifth aspect of the present invention records the numerical control program according to the fourth aspect of the present invention in a computer-readable manner.

  The numerical controller according to claim 1 of the present invention designates whether the operation of the manual pulse generator is used for the control of the axis feeding device or the drawing control to the display device, and the drawing control is designated. In this case, the drawing object is moved or enlarged or reduced according to the handle operation amount. Therefore, the plane can be easily controlled by using a manual pulse generator used for controlling the axis feeding device and operating the handle thereof.

  In addition to the effect of the invention described in claim 1, the numerical control device according to claim 2 of the present invention is an enlargement or reduction at the time of enlargement / reduction of drawing control depending on the operation direction of the handle of the manual pulse generator. You can decide whether or not. Therefore, enlargement and reduction can be performed with a single handle operation without any special designation.

  In addition to the effect of the invention described in claim 1 or 2, the numerical control device according to claim 3 of the present invention is configured such that a drawing target is two-dimensionally displayed by an axis selection switch provided in the manual pulse generator. It is possible to select which axis is used for display.

  Moreover, the numerical control program according to claim 4 of the present invention can exhibit the operational effects as the various processing means of the invention according to any of claims 1 to 3 by being executed by a computer.

  In addition, the recording medium according to claim 5 of the present invention can achieve the operational effects of the numerical control program according to the invention of claim 4 by causing the computer to read and execute the recording medium.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. The numerical control device 1 of the present embodiment is provided in a machine tool, and controls a workpiece machining operation by the machine tool by executing a machining program including an array of instruction blocks having control commands. Further, the numerical control apparatus 1 of the present embodiment includes a manual pulse generator 23, and can manually send the movable axes (X axis, Y axis, Z axis, additional axis) of the machine tool to the display device. You can manipulate the drawing.

  First, the electrical configuration of the numerical controller 1 will be described with reference to FIG. FIG. 1 is a block diagram showing an electrical configuration of a numerical control device 1 of a machine tool. As shown in FIG. 1, a numerical control device 1 includes a CPU 10 that performs control, a ROM 11 that stores a control program, a RAM 12 that is a temporary storage area for data and machining programs in use, an input interface 14, An output interface 15 is connected via a bus 16.

  An operation device 21, an input device 22, and a manual pulse generator 23 are connected to the input interface 14. The operation device 21 includes a manual mode / automatic mode changeover switch, a plurality of command keys, a machining program input key, and an editing key. The input device 22 is a device for reading a machining program from the outside.

  The output interface 15 includes an X-axis drive circuit 31 for driving the X-axis motor 41, a Y-axis drive circuit 32 for driving the Y-axis motor 42, a Z-axis drive circuit 33 for driving the Z-axis motor 43, and a main shaft. A main shaft driving circuit 34 for driving the motor 44, an additional shaft driving circuit 35 for driving the additional shaft motor 45, and a control circuit 36 for controlling the display device 50 for displaying a program and drawing a workpiece are connected. Has been.

  Next, the manual pulse generator 23 will be described with reference to FIG. FIG. 2 is an external view of the manual pulse generator 23. As shown in FIG. 2, the manual pulse generator 23 includes a handle 231 that can rotate forward and backward, a magnification selection switch 232, and an axis selection switch 233. A pulse signal is output according to the rotation angle of the handle 231. In general, the magnification selection switch 232 can select an integer magnification, and in the present embodiment, the magnification selection switch 232 is 1 ×, 10 ×, or 100 ×. The axis selection switch 233 also serves as a power switch, and can select power OFF, X axis, Y axis, Z axis, and additional axis (indicated by “4”).

  In the present embodiment, the manual pulse generator 23 is used in two modes, a manual mode and a drawing mode. In the manual mode, the movable axis selected by the axis selection switch 233 is moved at a conversion ratio specified by the magnification specified by the magnification selection switch 232 and the rotation angle of the handle 231. In the drawing mode, display movement and enlargement / reduction in two-dimensional display on the axis selected by the axis selection switch 233 are executed (details will be described later).

  Next, processing when the manual pulse generator 23 is operated in the numerical controller having the above-described configuration will be described with reference to FIGS. FIG. 3 is a flowchart of processing when the manual pulse generator 23 is operated. FIG. 4 is an explanatory diagram illustrating an example of a drawing target. FIG. 5 is an explanatory diagram showing transition in the X-axis display movement mode. FIG. 6 is an explanatory diagram showing transition in the Y-axis display movement mode. FIG. 7 is an explanatory diagram showing transition in the Z-axis display movement mode. FIG. 8 is an explanatory diagram showing transition in the enlargement / reduction mode.

  When the input from the manual pulse generator 23 is detected, the rotation direction (S1) of the handle 231 and the rotation amount (S3) of the handle 231 are first acquired as shown in FIG. Next, magnification information is acquired from the position of the magnification selection switch 232 (S5).

  Next, mode information is acquired from a mode changeover switch (not shown), and it is determined whether the current mode is the manual mode (S10). If it is the manual mode (S10: YES), the designated movable axis is moved according to the conversion ratio in accordance with the magnification information obtained in S5, the rotation amount of the handle 231 obtained in S3, and the axis designation obtained from the axis selection switch 233. The feed movement process is executed (S15).

  If it is not the manual mode (S10: NO), it is determined whether or not drawing is being displayed on the display device 50 (S20). If the drawing is not being displayed (S20: NO), the operation of the manual pulse generator 23 is invalidated and the process is terminated as it is.

  If the drawing is being displayed (S20: YES), then mode selection information is acquired from the axis selection switch 233 (S25). If the axis selection switch 233 is “X”, the X-axis display movement mode is “Y”, the Y-axis display movement mode is “Y”, the Z-axis display movement mode is “Z”, and the enlargement / reduction mode is “4”. It becomes.

  Next, it is determined whether the acquired mode is the X-axis display movement mode (S30). If it is the X-axis display movement mode (S30: YES), the coordinate currently being drawn is acquired (S35), and the coordinate position after the movement is calculated (S40). At this time, if the rotation direction of the handle 231 acquired in S1 is clockwise, it is moved in the positive direction (right direction), and if it is counterclockwise, it is moved in the negative direction (left direction). Furthermore, if the magnification information acquired in S5 is 1, it is moved in units of 0.001 mm, if it is 10 times, it is moved in units of 0.010 mm, and if it is 100 times, it is moved in units of 0.100 mm. Let's move. Then, drawing is output to the display device 50 in accordance with the calculated coordinates (S90), and the process is terminated.

  For example, when a cylindrical workpiece as shown in FIG. 4 is drawn on the display device 50, the drawing is performed in a state like the screen 200 of FIG. 5 in the X-axis display movement mode. Here, when the handle 231 is rotated clockwise, the object is moved and displayed in the right direction as shown on the screen 230. Further, when the handle 231 is rotated counterclockwise, the object is moved in the left direction and displayed as shown on the screen 240.

  If the acquired mode is not the X-axis display movement mode (S30: NO), it is next determined whether or not it is the Y-axis display movement mode (S50). If it is the Y-axis display movement mode (S50: YES), the coordinate currently being drawn is acquired (S55), and the coordinate position after the movement is calculated (S60). At this time, if the rotation direction of the handle 231 acquired in S1 is clockwise, it is moved in the positive direction (upward), and if it is counterclockwise, it is moved in the negative direction (downward). Furthermore, if the magnification information acquired in S5 is 1, it is moved in units of 0.001 mm, if it is 10 times, it is moved in units of 0.010 mm, and if it is 100 times, it is moved in units of 0.100 mm. Let's move. Then, drawing is output to the display device 50 in accordance with the calculated coordinates (S90), and the process is terminated.

  For example, when a cylindrical processing object as shown in FIG. 4 is drawn on the display device 50, in the Y-axis display movement mode, drawing is performed in a state as shown in the screen 200 of FIG. Here, when the handle 231 is rotated clockwise, the object is moved upward and displayed as shown on the screen 250. Further, when the handle 231 is rotated counterclockwise, the object is moved downward and displayed as shown on the screen 260.

  If the acquired mode is not the Y-axis display movement mode (S50: NO), it is next determined whether it is the Z-axis display movement mode (S65). If it is the Z-axis display movement mode (S65: YES), the coordinate currently being drawn is acquired (S70), and the coordinate position after the movement is calculated (S75). At this time, if the rotation direction of the handle 231 acquired in S1 is clockwise, it is moved in the positive direction (upward), and if it is counterclockwise, it is moved in the negative direction (downward). Furthermore, if the magnification information acquired in S5 is 1, it is moved in units of 0.001 mm, if it is 10 times, it is moved in units of 0.010 mm, and if it is 100 times, it is moved in units of 0.100 mm. Let's move. Then, drawing is output to the display device 50 in accordance with the calculated coordinates (S90), and the process is terminated.

  For example, when a cylindrical workpiece as shown in FIG. 4 is drawn on the display device 50, the drawing is performed in a state as shown in the screen 300 of FIG. 7 in the Z-axis display movement mode. Here, when the handle 231 is rotated clockwise, the object is moved upward and displayed as shown on the screen 310. Further, when the handle 231 is rotated counterclockwise, the object is moved downward and displayed as shown on the screen 320.

  When the acquired mode is not the Z-axis display movement mode (S65: NO), it is an enlargement / reduction mode. Therefore, the coordinates currently being drawn are acquired (S80), and the coordinate position after enlargement or reduction is calculated (S85). At this time, if the rotation direction of the handle 231 acquired in S1 is clockwise, it is enlarged, and if it is counterclockwise, it is reduced. Furthermore, if the magnification information acquired in S5 is 1, enlargement / reduction in units of 1%, if 10x, enlargement / reduction in units of 10%, if 100 times, enlargement in units of 100%. Let it be reduced. Then, drawing is output to the display device 50 in accordance with the calculated coordinates (S90), and the process is terminated.

  For example, when a cylindrical workpiece as shown in FIG. 4 is drawn on the display device 50, in the enlargement / reduction mode, the drawing is performed in a state like the screen 200 of FIG. Here, when the handle 231 is rotated clockwise, the object is enlarged and displayed as shown on the screen 220. Further, when the handle 231 is rotated counterclockwise, the object is reduced and displayed as shown on the screen 210.

  As described above, according to the numerical control device 1 of the present embodiment, when drawing is performed on the display device 50, the handle 231 is used by using the well-known manual pulse generator 23 provided as a standard. Depending on the rotation direction and the rotation amount, the drawing target in the two-dimensional display can be moved or enlarged / reduced.

  In the above embodiment, the CPU 10 that acquires the coordinates of the drawing target in S35, S55, S70, and S80 in FIG. 3 corresponds to the coordinate acquisition means of the present invention. Further, the CPU 10 that acquires the rotation amount of the handle 231 in S3 of FIG. 3 corresponds to the operation amount acquisition means of the present invention. Further, the CPU 10 that calculates the coordinates in S40, S60, S75, and S85 in FIG. 3 and outputs the drawing in S90 corresponds to the drawing control means of the present invention. Further, the CPU 10 that acquires the rotation direction of the handle 231 in S1 of FIG. 3 corresponds to the operation direction acquisition means of the present invention. Further, the CPU 10 that calculates the coordinates in S85 of FIG. 3 corresponds to the determining means of the present invention.

It is a block diagram which shows the electric constitution of the numerical control apparatus 1 of a machine tool. 3 is an external view of a manual pulse generator 23. FIG. It is a flowchart of a process when the manual pulse generator 23 is operated. It is explanatory drawing which shows the example of a drawing target object. It is explanatory drawing which shows the transition in X-axis display movement mode. It is explanatory drawing which shows the transition in a Y-axis display movement mode. It is explanatory drawing which shows the transition in Z-axis display movement mode. It is explanatory drawing which shows the transition in expansion / contraction mode.

Explanation of symbols

1 Numerical control device 10 CPU
11 ROM
12 RAM
23 Manual pulse generator 50 Display device 231 Handle 232 Magnification selection switch 233 Axis selection switch

Claims (5)

In a numerical control device of a machine tool that operates a tool according to a machining program to machine a workpiece,
A display device for displaying characters or images;
A manual pulse generator operated by a handle;
A designation means for designating whether the operation of the manual pulse generator is used for controlling the axial feed device of the machine tool or for drawing control on the display device;
Coordinate acquisition means for acquiring target coordinates to be drawn on the display device;
An operation amount obtaining means for obtaining a handle operation amount of the manual pulse generator;
When drawing control is specified by the specifying unit, the drawing target to be drawn on the display device is moved or moved based on the coordinates acquired by the coordinate acquiring unit and the operation amount acquired by the operation amount acquiring unit. A numerical control apparatus comprising: a drawing control means for enlarging / reducing. An operation direction acquisition unit that acquires an operation direction of the handle of the manual pulse generator, and a determination unit that determines whether to enlarge or reduce based on the operation direction acquired by the operation direction acquisition unit. The numerical control device according to claim 1. The manual pulse generator has a selection switch for selecting a desired axis from among the X axis, the Y axis, and the Z axis,
The numerical control device according to claim 1, wherein the drawing control unit draws the drawing target on the display device according to an axis selected by the selection switch.   A numerical control program for causing a computer to function as various processing means of the numerical control device according to claim 1.   The computer-readable recording medium which recorded the numerical control program of Claim 4.

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