KR20100049174A - Apparatus and method for autometically generating processing program in computer numarical control machine tools - Google Patents

Abstract

PURPOSE: An automatic processing program generating apparatus in a CNC machine tool is provided to reduce a programming time by making a program by setting a desirable processing pattern and inputting a parametric value. CONSTITUTION: An automatic processing program generating apparatus comprises a memory unit(110), a display unit(130), and a controller(100). The memory unit stores program generation information tables according to a plurality of processing patterns. The display unit indicates processing program in a screen. When the information tables is selected and the processed information including the processing parameter value is inputted, the controller automatically produces the processing program corresponding to the input processed information by using the program generation information table.

Description

FIELD AND METHOD FOR AUTOMATICALLY GENERATING PROCESSING PROGRAM IN COMPUTER NUMARICAL CONTROL MACHINE TOOLS

The present invention relates to an apparatus and method for creating a machining program in a computer numerical control machine tool, in particular, the user selects the machining information through a graphic screen for selecting the machining information, and automatically generates the machining program for the selected machining information The present invention relates to an apparatus and a method for allowing a worker to write a machining program more conveniently.

Numerical control (NC) of machine tools for cutting is now rapidly progressing. In recent years, machine tools equipped with computer numerical control (CNC), which has further advanced numerical control (NC) by automatically controlling machine tools using a computer equipped with a numerical control program, are rapidly spreading. to be.

A computer numerical control machine tool is operated by a numerical control program, so a skilled NC programmer is required, and the NC programmer must program a part program.

In the current computer numerical control machine tools, the machining program can be written by using a combination of letters and numbers by the operator using the keys of the MDI (Manual Data Input) operator panel using an editor provided by the CNC. It is being created. In this way, a creation screen in which an operator directly programs a machining program using a combination of letters and numbers may be illustrated in FIG. 5A.

In addition, the machining program thus created is stored in the CNC memory, and if the machining program is large, it is stored in the external memory using the CAM software.

As such, in the related art, the operator directly programs the machining program using the keys of the MDI operation panel, so that the operator can be programmed only if the operator knows all the machining patterns and the program instructions related to the machining parameters according to the machining patterns.

Accordingly, in the case of the novice, the operator has no choice but to program the part program while checking the program command, and even an experienced operator may cause machining that the operator does not want if he / she incorrectly inputs the command by mistake.

In addition, in the related art, when a machining program is created, a command for a machining pattern and a corresponding machining parameter must be input by a combination of a letter key and a numeric key, and thus a lot of time is required when creating a program. This increases the need for a faster and easier way to program part programs.

In addition, if the operator incorrectly inputs the values of the machining parameters when creating the part program, machine collisions or wrong machining may occur.

For example, assume that the height of the workpiece is 1000 mm and the diameter is 3000 mm. At this time, the operator writes a program for drilling holes in the upper part of the workpiece. After inputting the command for the machining pattern, the operator thinks that the diameter is 3000m and the height is 3000mm. Assume you entered 1500mm. After that, when the machining program is executed, the tool penetrates the workpiece and even the pallet, which is a pedestal of the workpiece, causes a machine crash and eventually breaks the machine tool. Therefore, there is a need for validity checking whether the value of machining parameters included in the programmed machining program falls within the machining range.

Accordingly, the present invention provides an apparatus and method for automatically generating a machining program for enabling a programmer to easily program a machining program without having to know a command for programming when creating a machining program in a CNC machine tool.

In addition, the present invention checks whether each machining parameter value is in a possible range before storing the generated machining program, and stores the generated machining program only when all parameter values are in the possible range. The present invention provides an apparatus and method for automatically generating a machining program to prevent the occurrence of the defect.

According to an aspect of the present invention, there is provided a machining program automatic generation device, comprising: a memory unit for storing program generation information tables according to a plurality of machining patterns, a display unit for displaying a machining program input screen, and a machining program input screen display When the machining program input screen is displayed through the display unit as required, and machining information including a machining pattern selection and a value for the machining parameter is input, machining according to the machining information input using the program generation information table. And a control unit for automatically generating a program, wherein the program generation information table includes a table in which instructions corresponding to a plurality of machining patterns are mapped, and instructions corresponding to machining parameters required for machining, respectively, for each machining pattern. To include tables It shall be.

According to an example of the present invention, the machining program input screen may be a screen for selecting a machining pattern and a screen for inputting machining parameter values according to the selected machining pattern.

In addition, the present invention provides a method for automatically generating a machining program in the numerical control device, the program generation information table is mapped to the instructions corresponding to each of the plurality of machining parameters required for machining the corresponding pattern for each of the plurality of machining patterns A process of storing, displaying a screen for selecting a machining pattern according to a request for displaying a machining program input screen, and displaying a screen for inputting machining parameter values for the selected machining pattern when a predetermined machining pattern is selected; And when the machining information including a value for the machining parameter is input, automatically generating a machining program according to the input machining information using the program generation information table.

According to the present invention described above, a beginner who is not familiar with the instructions for programming can generate a machining program only by viewing the graphic screen.

In addition, the author can create a program by inputting only the desired machining pattern and the value for the parameter item on the screen instead of writing letters and numeric keys, as in the prior art. There is an advantage.

In addition, there is an advantage in that it is possible to prevent the occurrence of machine collision or wrong material machining by checking whether each of the machining parameter values set before storing the generated machining program is within a possible range.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible. Specific details are set forth in the following description, which is provided to provide a more thorough understanding of the present invention. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, a method for allowing an operator to directly select a thrust value according to a type of a workpiece according to an embodiment of the present invention with reference to the accompanying drawings, and to control the tailstock to support the workpiece with the selected thrust value. Explain.

First, referring to FIG. 1, a device for automatically generating a machining program in a CMC machine tool according to an embodiment of the present invention will be described.

Referring to FIG. 1, the apparatus for automatically generating a machining program according to the present invention includes a controller 100, a memory unit 110, an input unit 120, and a display unit 130.

The memory unit 110 is a unit that stores a program required for the operation of a CNC machine tool and a generated machining program. Particularly, the memory unit 110 according to the present invention stores a program for automatically generating a machining program, and a program generation information table for automatically generating a machining program using a machining pattern and parameter values input by an operator. Save them. In this case, the program generation information table is a table in which program instructions are mapped to each of a plurality of machining patterns, and program instructions corresponding to machining parameters required for machining for each machining pattern, respectively. It can be shown as

First, referring to FIG. 2A, program instructions are mapped to processing patterns in the program generation information table 200. 2B, a program generation information table 200-1, 200-2,..., 200 -N in which program instructions corresponding to machining parameters are mapped for each machining pattern is illustrated. 2A and 2B, which is an embodiment of the present invention, the processing pattern 1, 2,... And commands 1, 2... , 1-2, 1-2,... Although described as follows, in actual implementation, the machining pattern names and instructions used for the machining will be included in the table.

Referring again to FIG. 1, the input unit 120 includes a key for selecting a processing pattern and selecting a processing parameter value, and transmits a signal corresponding to a key input by an operator to the controller 100.

The display unit 130 may be implemented as a cathode ray tube (CRT) or a liquid crystal display (LCD), and displays a processing program input screen. In this case, the machining program input screen refers to a graphic screen that displays machining parameter items required for the selected machining pattern when the coordinate system setting, the workpiece material input screen, the machining pattern selection screen, and the machining pattern are selected. Each of these screens is composed of different screens and displays the screen for setting the coordinate system and input of the workpiece material according to the operator's input, and displays the screen for selecting the machining pattern, and then displays the processing parameter value input screen according to the predetermined selection. The screen may be displayed in a separate manner, or the screen may be divided into a single screen.

The control unit 100 controls the overall operation of the machine tool. In particular, the controller 100 according to the present invention executes a program for automatically generating a machining program through the memory unit 110 and displays a machining program input screen through the display unit 130 when a machining program is automatically generated. Thereafter, the control unit 100 reads the program generation information table from the memory unit 110 to the input processing information when the processing information including the processing pattern selection and the processing parameter values is input through the input unit 120. The part program accordingly is automatically generated.

Hereinafter, a process of automatically generating a machining program according to a machining pattern and a machining parameter value input while a worker views a guide graphic screen for creating a machining program will be described in detail with reference to the flowcharts of FIGS. 3 and 4.

3 is a flowchart illustrating a process of automatically generating a machining program according to an operator's input in a CNC machine tool according to an exemplary embodiment of the present invention. 4 is a flowchart illustrating a process performed in a machining information input screen display mode during a machining program automatic generation process according to an exemplary embodiment of the present invention.

First, referring to FIG. 3, in step 300, the control unit 100 maintains the standby state, and in step 302, if there is a process program automatic generation mode selection by the operator, the controller 100 proceeds to step 304 to perform a processing information input screen display mode. Here, the processing information input screen display mode is a mode for providing a graphic screen for setting the coordinate system, registering the workpiece material information, and inputting a machining pattern and a machining parameter value.

Referring to FIG. 4, in step 400, the control unit 100 displays a coordinate system setting and location information input screen. In general, use the G92 command or G54 ~ G59 command to set the coordinate system. There are six ways to take the arbitrary points shown in the machine coordinate system as the workpiece material coordinate system. Set each to the parameter and select G54 ~ G59. It is convenient when machining several drawings on one workpiece. What is necessary is just to input the machine coordinate value at the time of moving from a machine origin to a workpiece | work coordinate system origin. In addition, input material information, the operator inputs the information of the material required for the material processing, such as the length, height, weight of the material.

Thereafter, in step 402, when the input of the coordinate system setting and the material information from the operator is completed, the process proceeds to step 404.

In step 404, the controller 100 displays processing pattern information that can be selected by referring to the program generation information table stored in the memory 110 on the screen. Subsequently, when a predetermined processing pattern is selected by the operator in step 406, the control unit 100 checks processing parameters required for processing the selected processing pattern in step 408, and then the values for each processing parameter item as shown in FIG. 5B. Displays a screen for entering the text.

Subsequently, when inputting a value for each processing parameter item from the operator, the control unit 100 proceeds to step 306 and checks whether all processing information input is completed.

In step 306, if all the processing information is input, the controller 100 proceeds to step 308 and automatically generates a program according to the processing information input. That is, the control unit 100 automatically generates a machining program by combining a program command for a machining pattern selected by an operator, a command for machining parameters required for the selected machining pattern, and a value for the input corresponding machining parameter.

In operation 310, the controller 100 determines whether the generated machining program is a program that can be registered. Here, the program that can be registered means a program that is newly created except for a program that is being edited and a program that is running. That is, step 310 is a step for not registering when the generated machining program modifies a program that has been previously processed or is identical to a previously stored program.

If the machining program generated as a result of step 310 is confirmed as a registerable program, the process proceeds to step 312. Otherwise, the process proceeds to step 316 to display an error message. At this time, the error message may display a message indicating that the machining program created by the current operator is a program that cannot be registered. In addition, since the editing program or the running program, which is an impossible reason for registering with the message, an indication that it is impossible, may also be displayed.

In operation 312, the controller 100 determines whether the set parameter value is a valid value. That is, it is to check whether the set parameter value is within the range of length and height value which is information about the material preset by the operator.

For example, assume that the height of the workpiece is 1000 mm and the diameter is 3000 mm. At this time, if the operator selects a processing pattern for drilling holes in the upper portion of the workpiece and inputs a parameter value for setting the height of the hole as 1500 mm, the height of the workpiece is 1000 mm, thus exceeding the processing range. Then, the controller 100 determines that the parameter value is not valid because it does not belong to the processable range.

If there is a parameter item that is not valid among the parameter values set in step 312 because it is not within the processable range, the controller 100 proceeds to step 316 and displays an error message on the screen. In this case, the error message may display a message indicating that there is an invalid parameter value and thus is not easy to process. It is also possible to indicate which parameter item is invalid with the message.

In operation 312, when it is determined that all of the parameter values set are within the processable range, the controller 100 proceeds to step 314 and stores the generated machining program to the memory unit 110. After that, if there is an execution command for the machining program stored by the operator, the workpiece is machined with the machining program.

As described above, the present invention provides a guidance graphic screen when the operator wishes to create a machining program, so that the operator automatically generates the machining program by a simple operation of selecting a machining pattern and inputting only corresponding machining parameter values while viewing the screen. Do it.

Although specific embodiments of the present invention have been described above, the spirit and scope of the present invention are not limited to the specific embodiments, and various modifications and changes can be made without departing from the spirit of the present invention. Those skilled in the art will understand.

Therefore, since the embodiments described above are provided to completely inform the scope of the invention to those skilled in the art, it should be understood that they are exemplary in all respects and not limited. The invention is only defined by the scope of the claims.

1 is an internal configuration diagram of an apparatus for automatically generating a machining program in a CMC machine tool according to an embodiment of the present invention;

2A is an exemplary diagram illustrating a program generation information table to which program instructions according to a machining pattern are mapped according to an embodiment of the present invention;

2B is an exemplary diagram illustrating a program generation information table to which program instructions are mapped according to parameter items for processing patterns according to an embodiment of the present invention;

3 is a flowchart illustrating a process of automatically generating a machining program according to an operator's input in a CNC machine tool according to an embodiment of the present invention;

4 is a flowchart illustrating a process performed in a machining information input screen display mode during a machining program automatic generation process according to an exemplary embodiment of the present invention;

5A is a diagram showing a general machining program creation screen;

5B is an exemplary view showing a machining program screen according to an embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS OF THE DRAWINGS

100: control unit 102: program generation unit

104: program registration determination unit 106: parameter inspection unit

110: memory unit 120: input unit

130: display unit

200-1 ~ 200-N: Program Creation Information Table

Claims (3)

In the part program automatic generation device, A memory unit 110 for storing program generation information tables according to a plurality of processing patterns; A display unit 130 for displaying a part program input screen; Part program input screen If a part program input screen is displayed through the display unit 130 according to a display request, and machining information including a machining pattern selection and a value for a machining parameter is input, the program generation information table is used. And a controller 100 for automatically generating a machining program according to the input machining information. The program generation information table includes a table to which instructions corresponding to a plurality of machining patterns are mapped, and a table to which instructions corresponding to machining parameters necessary for machining are mapped to each machining pattern, respectively. Automatic generation device. According to claim 1, The processing program input screen, And a screen for inputting a machining pattern and a screen for inputting machining parameter values according to the selected machining pattern. In the method for automatically generating the part program in the numerical control device, Storing program generation information tables mapped with instructions corresponding to each of a plurality of machining parameters required for machining the corresponding pattern for each of the plurality of machining patterns; Part program input screen display process of displaying the screen for selecting the machining pattern according to the request; When a predetermined machining pattern is selected, displaying a screen for inputting machining parameter values for the selected machining pattern; And automatically generating a machining program according to the input machining information by using the program generation information table when machining information including a value for a machining parameter is input. .

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