KR102207536B1 - In computer numarical control machine and method using thereof - Google Patents

Abstract

An embodiment presented in the present specification is a computer numerically controlled machine tool for inputting a machining shape, in which the computer numerically controlled machine tool receives essential parameters of the basic shape when there are a plurality of basic shapes selected through a user interface, and the essential parameters Based on a plurality of basic shapes, an intersection point that can be generated by a plurality of basic shapes is automatically calculated, a complex shape is generated using the essential parameters and the intersection point, and the generated complex shape is registered as a processed shape.

Description

Computer numerical control machine tool and method using it {IN COMPUTER NUMARICAL CONTROL MACHINE AND METHOD USING THEREOF}

The present invention relates to a computer numerically controlled machine tool and a method using the same, and in particular, to an apparatus and method for allowing easier and more convenient input of the shape of a workpiece to be processed using only a minimum input value.

In recent years, there is an increasing demand for an interactive program in which a user can create a machining program by simply inputting the shape and processing conditions of a workpiece in the field. However, in the conventional method of inputting the shape of an interactive program, a user views a drawing and sequentially inputs only straight and arc elements provided by the interactive program to define the shape.

First, the required input values required to define the shape such as the coordinate value of the shape or the length of the straight line, the center point of the angular arc, the start point, the end point, and the center angle are selected and the corresponding shape is defined and displayed one by one, and then additional shapes must be input.

For example, as shown in Fig. 1, when you want to input a shape consisting of a straight line and an arc, select an arc and a straight line, input essential input values such as the center point of the arc, the start point and the end point of the line, and then You must enter the additional input value of the intersection. In order to input the intersection point of the arc and the straight line, the user must calculate the intersection point directly.

In addition, there are cases where an experienced user directly creates a macro program using variables in the machine tool's internal memory, but this requires an experienced user to work for a long time, and an environment for convenience is not provided. not.

On the other hand, in order to produce small quantities of a variety of products that are gradually increasing in industrial sites, shape input for various products is frequently required. To this end, a lot of effort and time are required as the shape input method of the existing interactive program. Therefore, in order to increase the efficiency of the machining program at the work site and improve the user's convenience and work contents, there is an urgent need to improve the shape input method in the machining program.

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Korean Patent Publication No. 10-2011-0071503 (published on June 29, 2011)

The present invention has been proposed to solve the above-described problem, and when there is limited shape and coordinate information in the drawing to be input by the user, the intersection point is automatically calculated, and the coordinate value for each shape is automatically calculated. It is intended to provide a computer numerically controlled machine tool and a method using it that can increase the efficiency of inputting the machining shape and maximize the convenience of use.

To this end, according to a first aspect of the present invention, a computer numerical control machine tool according to the present invention includes an input unit including a key for selecting a basic shape or inputting essential parameters of the basic shape, and the selected basic shape is If there are multiple, essential parameters of the basic shape are input, the intersection point that can be generated by the plurality of basic shapes is automatically calculated based on the essential parameter, and a complex shape is created using the essential parameter and the intersection point, and the generated complex shape It characterized in that it comprises a control unit for registering the processed shape, a display unit for displaying the complex shape or the processed shape, and a Programmable Machine Controller (PMC) unit receiving information on the registered processed shape and operating a corresponding machine tool.

According to a second aspect of the present invention, the computer numerical control method according to the present invention includes the step of receiving a selection of one or more basic shape elements of a straight line, an arc, and a chamfer from a user in order to select a processing shape, and the selected basic shape. In the case of a plurality of these, receiving essential parameters for elements of a plurality of basic shapes, automatically calculating a possible intersection point based on the essential parameter, and generating a complex shape using the essential parameters and intersection points It characterized in that it comprises a.

According to a third aspect of the present invention, a computer numerical control method according to the present invention includes the steps of receiving one or more basic shape elements of a straight line, an arc, and a chamfer from a user, and setting essential parameters for a plurality of basic shape elements from the user. It characterized in that it comprises the step of receiving an input, generating one or more complex shapes using intersection points that can be generated based on the essential parameters, and displaying the complex shape to a user.

According to the exemplary embodiment presented in the present specification, by automatically deriving a shape using limited coordinate information shown in a drawing, an additional work step does not occur in the existing processing task, thereby improving the convenience of use.

In addition, since the user can use shape input without additional calculation, it enables economical machining by minimizing the time for generating NC programs used during machining.

1 is a diagram showing a hardware configuration of a processing shape input device using a processing interactive program in a computer numerical control machine tool according to an embodiment of the present invention.
2 is a flow chart illustrating a method of inputting a machining shape using a machining interactive program in a computer numerically controlled machine tool according to an embodiment of the present invention.
3 is a diagram illustrating an example of a processed shape input screen provided by a processed shape input device according to an embodiment of the present invention.
4 to 7 are diagrams for explaining a composite shape automatically generated by a method for inputting a processed shape according to an exemplary embodiment of the present invention.

The interactive program referred to in the present invention is a program that receives and processes data directly from a user in a dictionary sense, and refers to a program that enables interaction with a user by directly engaging the user to input and process data.

In the present invention, a user can register an arbitrary shape as a user-registered shape in the interactive program, and the shape that is currently working or that has been completed or that has been worked in the past is an interactive program without any additional programming procedure as needed. It can be saved as a user registration form.

Hereinafter, an apparatus and method for inputting a machining shape using an interactive program in a computer numerically controlled machine tool according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing a hardware configuration of a processing shape input device using a processing interactive program in a computer numerical control machine tool according to an embodiment of the present invention.

As shown in FIG. 1, the device according to the embodiment of the present invention includes an input unit 20, a display unit 20, a memory unit 40, an interactive program control unit 60, and a PMC (Programmble Machine Controller) unit 70. ) Can be included.

At this time, the entire operation of each component is controlled through the processor 10 of the system.

The input unit 20 is a means for inputting a processing shape, and is provided with a key for selecting a processing pattern, selecting a processing shape, and inputting parameters according to the selected processing shape, and interactively outputs a signal corresponding to a key input by a user. Output to the program control unit 60.

The input unit 20 according to the present exemplary embodiment may be provided on a manual data input (MDI) panel, but it is of course that the input unit 20 may be provided on the display unit 30 in the form of a touch screen.

The display unit 30 provides a processing shape input screen for inputting and registering a processed shape, thereby providing a user interface environment in which a user can conveniently handle the processed shape.

Here, the processing shape input screen means an adjustment screen of the entire process in which a processing shape to be processed is input and registered before processing, and parameters are set and applied according to a processing pattern. The processing shape input screen is, for example, a basic shape selection screen showing the process of selecting a basic shape, a parameter input screen showing the process of inputting a parameter of the basic shape, and a complex shape that can be created by the control unit 60. It includes a composite shape selection screen showing the process of selecting with shape information.

The memory unit 40 stores a program required for driving the machine tool 50 and a control program for controlling the overall operation of the system through the processor 10. In addition, the memory unit 40 stores a processing shape input by a user and a parameter according to the processing shape.

Here, the processing shape may be divided into a basic shape element corresponding to a basic element such as a straight line, an arc, and a chamfer, and a composite shape element formed by combining two or more basic shape elements. In addition, the essential parameters according to the processing shape include parameters necessary for registering the processing shape as coordinate information of shape elements such as the starting point, size, and angle of each processing shape element.

The control unit 60 controls the operation of the machine tool 50 as a whole, and executes a machining interactive program stored in the memory unit 40 when there is an input request for a machining shape.

When the processing interactive program is executed and the user inputs or selects information about the processing shape (hereinafter, processing shape information), the control unit 60 registers it and processes it according to the input processing shape information. After the processing is requested to be executed, the input processing shape information is transmitted to the PMC unit 70.

More specifically, the control unit 60 selects a basic shape through the user interface, receives essential parameters of the basic shape when there are a plurality of selected basic shapes, and can be generated by a plurality of basic shapes based on the essential parameters. The intersection point is automatically calculated, a complex shape is generated using the essential parameters and the intersection point, shape information of the generated complex shape is output, and the output shape information is transmitted to the PMC unit 70.

Then, the PMC unit 70 controls to operate the corresponding tool based on the processing shape information input from the control unit 60.

Accordingly, when only the essential parameters of the processed shape according to the embodiment of the present invention are input, a composite shape that can be generated is presented, and the user selects it to shorten the time required to input the processed shape.

All of the above-described components are not necessarily required, and some may be omitted.

2 is a flow chart illustrating a method of inputting a machining shape using a machining interactive program in a computer numerically controlled machine tool according to an embodiment of the present invention.

First, when a processing interactive program related to a processing process is executed, a screen for inputting a processing shape is provided on the display unit.

Then, the user selects the type of process to be processed on the screen (processing shape input screen) (S10). For example, the process can be selected from among processes including turning center (TC) processing and machining center (MC) processing.

Thereafter, in order to input a required processing shape according to the selected process, one or more basic shape elements of a straight line, an arc, and a chamfer are input from the user (S20).

On the displayed basic shape selection screen, select the basic shape of the shape to be machined. For example, the user may select a basic shape displayed on the basic shape selection screen 140 from the processed shape input screen provided as shown in FIG. 3. It may be displayed in the form of an icon list by dividing it into a starting point, a straight line, and an arc, and it is possible to select one of the icons displayed by the user.

When the inputted basic shape is plural, essential parameters are input for the plurality of basic shape elements (S30).

For example, the user may input parameters by the shape parameter input unit 150 on the processed shape input screen provided as shown in FIG. 3. Various parameters may be coordinate parameters related to the starting point, size, etc. of a straight line, arc, or chamfer, and an angle parameter between an element and an element.

Required parameters may vary depending on the basic shape. When the shape input by the user is a basic shape element of a straight line or an arc, parameter information such as the starting point, position coordinates, and radius of the shape is input by the shape parameter input unit 150 Can be.

Next, when an essential parameter is input, a possible intersection point is automatically calculated based on the essential parameter (S40).

A complex shape is created by using the essential parameters and intersection points of the basic shape (S50).

When there are a plurality of generated complex shapes, an arbitrary complex shape is selected from among the complex shapes that can be generated (S60).

In this way, the processed shape input through each step (S20 to S60) is displayed through the shape graphic output unit (110 in FIG. 3) of the processed shape input screen (100 in FIG. 3).

Thereafter, if you want to add or modify a shape (S70), repeat the process of selecting the shape element and setting the parameters of the selected shape element (S40, S50), and if you do not want to add or modify the shape, the input process is terminated. do.

A case in which a plurality of basic shapes are formed will be described below by way of example.

As a first example, as shown in (a) of FIG. 4, two straight lines are selected as basic shapes in step S20, and in step S30, the starting point P1 and the angle α of the first straight line, and the second straight line When the end point (P2) and angle (β) of are inputted as essential parameters, a semi-infinite straight line is created because the end point of the first straight line is not input. Subsequently, an intersection point between limited infinite straight lines generated by a subsequent second straight line can be generated, and the value of the intersection point X0 at this time is automatically calculated in step S40.

In this case, since only one intersection point is generated, there is only one composite shape that can be generated, and thus step S60, which is a shape selection process, is not performed.

As a second example, as shown in (b) of FIG. 4, two straight lines are selected as the basic shape in step S20, and in step S30, the starting point of the first straight line (P'1) and the second straight line are The end point (P'2) and the angle (β) and ③ the first straight line and the second straight line to the parallel virtual line segment (α) is received as essential parameters.

In step S30, a straight line with an arbitrary inclination is generated by the parallel virtual line segment (l) and the angle (α) of the second straight line, and the starting point of the first straight line is translated by translating the generated straight line (m). The intersection point where the straight line (m) and the parallel virtual line segment (l) of the second straight line meet can be created, and the value of the intersection point (X1) at this time is automatically calculated in step (S40). do.

In this case, since only one intersection point is generated, there is only one composite shape that can be generated, and thus step S60, which is a shape selection process, is not performed.

As a third example, when one straight line and an arc are selected as the basic shape in step S20, as shown in FIG. 5, an intersection between the straight line and an arc occurs and as shown in FIG. 6, between the straight line and the arc There may be cases where there is a tangent to. In S30, when the starting point (P3) and angle (γ) of the straight line and the end point (P4) and the center point (P5) of the arc are input as essential parameters as essential parameters, as shown in Fig. 5(a), the straight line When an intersection between a and an arc occurs, and only the start point (P6) of the straight line, the end point (P7), and the center point (P8) of the arc are received, as shown in FIG. 6, a composite shape in which a tangent line is created between the straight line and the arc Can be formed.

As shown in Fig. 5, when the starting point (P3) and the angle (γ) of the straight line, the end point (P4) and the center point (P5) of the arc as essential parameters are received as essential parameters in S30, in step S40, the arc The distance between the end point (P4) and the center point (P5) of is automatically calculated as a radius, and the coordinate values of the two intersection points created by a straight line and an arc are calculated and shown in Figs. 5(b) and (c) in step S50. As described above, when two complex shapes are generated, the two complex shapes generated in step S60 are presented to the user, and one of the complex shapes is selected.

As shown in Fig. 6, when only the start point P6 of the straight line, the end point P7 and the center point P8 of the arc are inputted as essential parameters in S30, in step S40, the end point P7 and the center point of the arc ( The distance of P8) is automatically calculated as a radius, and two tangent lines that can be created by a straight line and an arc are automatically created, and two complex shapes are presented by the basic shape, straight line, arc, and tangent line, and one of the presented complex shapes. The shape is selected in step S60.

As a fourth example, two arcs are selected as basic shapes in step S20, and in step S30, the start point (C1) and center point (C2) of the first arc, and the end point (C3) and center point (C4) of the second arc are required. If received as a parameter, in step S40, the distance between the start point (C1) and the center point (C2) of the first arc is automatically calculated as a radius, and the distance between the end point (C3) and the center point (C4) of the second arc is automatically calculated as the radius. Two circles are created. The intersection point (X3) and the intersection point (X4) are created by the two circles, and in step S50, two complex shapes are presented by the two arcs and intersection points, which are basic shapes, and one of the proposed complex shapes is selected in step S60. Be chosen.

All of the illustrated steps are not necessarily required, and some steps may be omitted.

The above-described method can be implemented through various means. For example, embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof.

In the case of hardware implementation, the method according to embodiments of the present invention includes one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs). , Field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, and the like.

In the case of implementation by firmware or software, the method according to the embodiments of the present invention may be implemented in the form of a module, procedure, or function that performs the functions or operations described above. The software code may be stored in a memory unit and driven by a processor. The memory unit may be located inside or outside the processor, and may exchange data with the processor through various known means.

In the above, embodiments disclosed in the present specification have been described with reference to the accompanying drawings. As described above, the embodiments shown in each drawing are not to be construed as limiting, and may be combined with each other by those skilled in the art who are familiar with the contents of the present specification, and when combined, some elements may be interpreted as being omitted.

Here, the terms or words used in the specification and claims should not be construed as being limited to a conventional or dictionary meaning, but should be interpreted as meanings and concepts consistent with the technical idea disclosed in the present specification.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only one embodiment disclosed in the present specification, and do not represent all the technical ideas disclosed in the present specification, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

10: processor 20: input
30: display unit 40: memory unit
50: machine tool 60: interactive program control unit
70: PMC unit

Claims (9)

An input unit including a key for selecting a basic shape or inputting essential parameters of the basic shape;
When there are a plurality of the selected basic shapes, the required parameters of the basic shape are input, the intersection points that can be generated by the plurality of basic shapes are automatically calculated based on the essential parameters, and a complex shape is created using the essential parameters and the intersection points. And a control unit for registering the generated composite shape as a processed shape;
A display unit that displays the composite shape or the processed shape; And
PMC (Programmable Machine Controller) unit receiving information on the registered processing shape and operating a corresponding machine tool
Including,
The essential parameters include the starting point, size, position coordinates and angle of the basic shape,
The basic shape includes a linear shape, an arc shape, and a chamfer shape,
The linear shape includes a first straight line, a second straight line, and a virtual line segment,
The essential parameter includes an angle between the first straight line and the second straight line to a parallel virtual line segment. The method of claim 1, wherein the control unit,
Computer numerically controlled machine tool, characterized in that when there are a plurality of complex shapes that can be generated using essential parameters and intersection points, an arbitrary complex shape is selected from among the complex shapes that can be generated through a user interface and the selected complex shape is registered as a processed shape. The method of claim 1,
The composite shape is a computer numerical control machine tool, characterized in that the shape made by the intersection of a plurality of basic shapes. The method of claim 1,
The display unit,
A basic shape selection screen indicating a process of selecting a basic shape, a parameter input screen indicating a process of inputting a parameter of a basic shape, and a process of selecting an arbitrary complex shape as processed shape information from among the complex shapes that can be created by the control unit Computer numerically controlled machine tool, characterized in that it provides a composite shape selection screen. Receiving at least one basic shape element selected from a straight line, an arc, and a chamfer from a user in order to select a processing shape;
Receiving essential parameters for elements of a plurality of basic shapes when the selected basic shape is plural;
Automatically calculating a possible intersection point based on the required parameter; And
Generating a complex shape by using the essential parameters and intersection points;
Including,
The essential parameters include the starting point, size, position coordinates and angle of the basic shape,
The straight line includes a first straight line, a second straight line, and a virtual line segment,
The essential parameter includes an angle between the first straight line and the second straight line to a parallel virtual line segment. The method of claim 5,
In the step of creating a composite shape using the required parameter and the intersection point,
Computer numerical control method further comprising the step of selecting an arbitrary composite shape from among the composite shapes that can be generated when there are a plurality of generated composite shapes. Receiving one or more basic shape elements of a straight line, an arc, and a chamfer from a user;
Receiving essential parameters for a plurality of basic shape elements from a user;
Generating one or more complex shapes using the createable intersection points based on the required parameters; And
Displaying the composite shape to a user;
Including,
The essential parameters include the starting point, size, position coordinates and angle of the basic shape,
The straight line includes a first straight line, a second straight line, and a virtual line segment,
The essential parameter includes an angle of the first straight line and the second straight line to a parallel virtual line segment. delete The method of claim 7,
Computer numerical control method further comprising the step of selecting one complex shape from the one or more complex shapes from the user.

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