KR102503120B1 - A system for laser hardening for a surface of mother metal - Google Patents

Abstract

The present invention is a laser curing device; a controller for controlling the operation of the laser curing device; a mode setting unit connected to the control unit and configured to set an operation mode of the laser curing device; a control box connected to the controller and manually controlling the laser curing device when the mode setting unit is in a manual mode; And a laser curing system including a data storage unit connected to the control unit and providing data for controlling the laser curing device, according to the shape of a metal base material, laser curing can be performed with a maximum uniform temperature distribution. .

Description

Laser hardening system for metal substrate {A SYSTEM FOR LASER HARDENING FOR A SURFACE OF MOTHER METAL}

The present invention relates to a laser hardening system for a metal base material, and more particularly, to a laser hardening system for a metal base material capable of performing laser hardening with a maximum uniform temperature distribution for various shapes of metal base materials.

In general, surface hardening can be used to increase the wear resistance of a material and also to increase the fatigue strength caused by residual compressive stress, the surface hardening , can be useful for hardening surfaces that are subject to significant wear in use, such as bearing surfaces, journal surfaces of crankshafts, for example.

On the other hand, surface hardening by a method of heat treatment using a laser (hereinafter referred to as "laser surface hardening") is characterized in that only necessary parts are rapidly heated and then rapidly cooled, so that surface deformation does not occur at all. , surface hardening work can be performed after machining using a machine tool.

Such laser surface hardening is capable of selectively processing necessary parts, is capable of responding to complex shapes, is capable of high power density and low energy processing, is cooled by rapid heat conduction inside the base material, and is treated It has the advantage of being easy to automate.

However, since the laser surface hardening proceeds with selective heat treatment on the necessary part of the metal base material, that is, local heat treatment, in order to make the heat treatment characteristics uniform, the same temperature per unit area of the metal base material is based on the same laser beam output. It is necessary to proceed with heat treatment.

However, since the shape of the metal base material is not uniform, it is difficult to perform heat treatment at the same temperature per unit area of the metal base material based on the output of the same laser beam, and therefore, heat treatment at the same temperature per unit area of the metal base material. In order to proceed, it is necessary to control the laser beam according to the shape of the metal base material.

Korean Patent Publication 10-2021-0013308

The problem to be solved by the present invention is to provide a laser curing system capable of controlling a laser beam according to the shape of a metal base material.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the present invention is a laser curing device; a controller for controlling the operation of the laser curing device; a mode setting unit connected to the control unit and configured to set an operation mode of the laser curing device; a control box connected to the controller and manually controlling the laser curing device when the mode setting unit is in a manual mode; and a data storage unit connected to the control unit and providing data for controlling the laser curing device.

In addition, in the present invention, when the mode setting unit is set to automatic mode or manual mode, and the mode setting unit is set to automatic mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit, When the mode setting unit is set to manual mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit, and when an input signal by the control box is detected, the laser curing device is automatically driven according to the input signal. It provides a laser curing system characterized in that the laser curing device is driven.

In the present invention, the data storage unit includes data information of a laser heat treatment temperature, a laser beam size, a laser beam output, a transport path of the laser head unit, and a transport speed of the laser head unit for each metal base material, and the data storage unit includes , It provides a laser curing system, characterized in that for storing input signal data input by the control box, and storing the input signal data as setting data.

In addition, the present invention the control box, the laser beam output control unit; and a laser beam size control unit disposed adjacent to the laser beam output control unit, wherein the input signal data is input signal data for a laser beam output controlled by the laser beam output control unit, or the laser beam It provides a laser curing system, characterized in that the input signal data for the laser beam size controlled by the size control unit.

In addition, in the present invention, the control box further includes a mode switching unit located in a first predetermined area of the control box, the mode switching unit is divided into a manual control mode and an automatic control mode, and the mode switching unit is in an automatic control mode. When set to , the laser beam output control unit and the laser beam size control unit do not operate, and when the mode switching unit is set to the manual control mode, the laser beam output control unit and the laser It provides a laser curing system characterized in that the beam size adjustment unit operates.

In addition, the present invention provides a method for operating a laser curing system, wherein the laser curing system includes: a laser curing device; a controller for controlling the operation of the laser curing device; a mode setting unit connected to the control unit and configured to set an operation mode of the laser curing device; a control box connected to the controller and manually controlling the laser curing device when the mode setting unit is in a manual mode; And a data storage unit connected to the control unit and providing data for controlling the laser curing device, wherein the operation method of the laser curing system includes: setting an operation mode by the mode setting unit; determining whether an input signal is detected from the control box when the operation mode is a manual mode; and driving a laser curing device according to the input signal when an input signal is detected from the control box.

In addition, the present invention provides a method of operating a laser curing system further comprising driving the laser curing device according to first setting data when the operating mode is an automatic mode.

In addition, the present invention provides a method of operating a laser curing system further comprising driving a laser curing device according to first setting data when an input signal is not detected from the control box.

In addition, the present invention, after the step of driving the laser curing device according to the input signal, the step of storing the input signal data; Evaluating the curing characteristics of the base material cured by the laser curing device driven according to the input signal, and determining whether the curing characteristics are satisfied; and storing the input signal data as second set data when the curing characteristics of the cured base material are satisfied.

In addition, the present invention further comprises the step of driving the laser curing device according to the first set data again when the input signal is no longer detected from the control box after the step of driving the laser curing device according to the input signal. It provides a method of operating a laser curing system that does.

According to the present invention as described above, in the laser curing system according to the present invention, the user adjusts the output of the laser beam or the size of the laser beam by the control box, and the input signal for the output of the laser beam or the size of the laser beam Through, by driving the laser curing device, according to the shape of the metal base material, it is possible to proceed with the laser curing with the most uniform temperature distribution.

In addition, in the present invention, when the hardening characteristics of the base material hardened through the input signal are satisfied, the input signal data is stored as setting data, and later, in proceeding with laser hardening on the same base material group, the setting data Laser curing can be performed automatically.

1 is a block diagram for explaining a laser curing system for a metal base material according to the present invention.
Figure 2 is a flow chart for explaining the operation of the laser curing system according to the present invention.
Figure 3 is a flow chart for explaining the further operation of the laser curing system according to the present invention.
Figure 4 (a) is a schematic perspective view for explaining the laser beam irradiation of the laser curing device according to the present invention, Figure 4 (b) is the curing characteristics of the base material hardened by the laser curing device according to the present invention It is a schematic perspective view to explain the evaluation of.
5 is a schematic diagram for explaining laser curing according to an automatic mode and a manual mode according to the present invention.
6 is a real picture showing a control box according to the present invention.
7 is a real picture showing a laser curing device according to the present invention.
8 is a real picture showing a display unit according to the present invention.
9 is a real picture showing a laser oscillator according to the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims.

With reference to the accompanying drawings below, specific details for the practice of the present invention will be described in detail. Like reference numbers refer to like elements, regardless of drawing, and "and/or" includes each and every combination of one or more of the recited items.

Although first, second, etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements other than the recited elements.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

The spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe a component's correlation with other components. Spatially relative terms should be understood as including different orientations of elements in use or operation in addition to the orientations shown in the drawings. For example, if you flip a component that is shown in a drawing, a component described as "below" or "beneath" another component will be placed "above" the other component. can Thus, the exemplary term “below” may include directions of both below and above. Elements may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram for explaining a laser curing system for a metal base material according to the present invention.

Referring to FIG. 1, a laser curing system for a metal base material according to the present invention includes a laser curing device 150; A control unit 160 for controlling the operation of the laser curing device 150; Mode setting unit 100 connected to the controller 160 and setting an operation mode of the laser curing device 150; A control box 110 connected to the controller 160 and manually controlling the laser curing device in the manual mode of the mode setting unit 100; and a data storage unit 140 connected to the control unit and providing data for controlling the laser curing device.

Meanwhile, the laser curing system for metal base material according to the present invention may further include a display unit 130 for displaying an operating state of the laser curing device and a control state of the control unit.

More specifically, the laser curing device 150 may include a robot arm unit and a laser head unit located on one side of the robot arm unit.

For example, in the present invention, LDF6000-40 (made in Germany/Laserline) with a maximum output of 6 kW was used as the laser head unit, but the type of the laser head unit is not limited in the present invention.

In addition, the laser head unit may be mounted on an end of the robot arm unit, and a semiconductor device embedded in the laser head unit may condense laser light and directly irradiate the product surface.

On the other hand, in the present invention, in addition to the movement of the laser head by the robot arm, the positioner is placed under the laser head to automatically rotate the workpiece, that is, the metal base material, even when the workpiece has a complicated three-dimensional shape. It is possible to process by laser irradiation at high speed.

In addition, the laser beam oscillated from the laser head can be heat treated according to the shape of the product using a plurality of laser focus lenses other than 3 mm × 3 mm, and also, to stabilize the deformation, precision and quality of the product, the laser beam By installing the focus lens to be variable up to 8mm×45mm, it is possible to irradiate a large area with one pass.

Since the details of such a laser curing device correspond to general matters in the art, detailed descriptions thereof will be omitted below, but the type of the laser curing device is not limited in the present invention.

In addition, the mode setting unit 100 is for setting the operation mode of the laser curing device 150, and may be set to an automatic mode or a manual mode.

At this time, the mode setting unit is located on the side of the laser oscillator to be described later, and when the mode setting unit is set to an automatic mode, the laser curing device may be automatically driven according to the setting data stored in the data storage unit.

For example, the laser curing device may be composed of a laser head including a diode laser with a maximum output of 6.0 kW and a robot arm including a 6-axis articulated robot, and according to the setting data stored in the data storage unit, The laser curing device is automatically driven to heat-treat the surface of the metal base material.

In addition, when the mode setting unit is set to manual mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit, and when an input signal by the control box is detected, the input signal Accordingly, the laser curing device may be driven.

Meanwhile, the data storage unit may provide data for controlling the laser curing device, and the data includes, for each metal base material, a laser heat treatment temperature, a laser beam size, a laser beam output, a laser head transfer path, Information such as the transfer speed of the laser head unit may be included.

For example, when laser hardening is automatically performed on the first metal base material, the mode setting unit 100 is set to an automatic mode, and in order to laser harden the first metal base material, the data stored in the data storage unit, Information such as laser heat treatment temperature, laser beam size, laser beam output, laser head transport path, and laser head transport speed is provided to the controller, and the controller drives the laser curing device according to the data. , Laser hardening may be automatically performed on the first metal base material.

In addition, for example, in the case of manually performing laser hardening on the second metal base material, the mode setting unit 100 is set to a manual mode and the data storage unit is used to laser harden the second metal base material. The stored information, such as the laser heat treatment temperature, laser beam size, laser beam output, transport path of the laser head unit, and transport speed of the laser head unit, is provided to the control unit, and the control unit operates the laser curing device according to the data. By driving, laser hardening may be automatically performed on the second metal base material.

At this time, when an input signal by the control box is detected while laser curing is automatically performed on the second metal base material, the laser curing device may be driven according to the input signal.

That is, in the present invention, the manual mode set by the mode setting unit is defined as a manual mode because the input signal can be controlled by the user's arbitrary control, but the manual mode is defined as the data stored in the data storage unit. When the input signal is detected by the control box while automatically proceeding with laser curing according to the method, it is switched to manual mode, so it can be substantially defined as semi-automatic mode. However, in the present invention, the meaning of the manual mode or semi-automatic mode is not limited to

Meanwhile, as will be described later, the input signal input by the control box may be an input signal for laser beam size or laser beam output. In particular, in the present invention, the input signal corresponds to an input signal for laser beam output. do.

This will be described later.

In addition, as described above, the data storage unit provides data for controlling the laser curing device to the control unit, and the data includes, for each metal base material, laser heat treatment temperature, laser beam size, laser beam output, Information such as a transport path of the laser head unit and a transport speed of the laser head unit may be included.

At this time, as described above, when laser curing is performed in a manual mode, the laser curing device is driven according to an input signal from the control box, and the input signal may be an input signal for laser beam size or laser beam output. can

In addition, as described above, the input signal input by the control box is controlled by the user's arbitrary control, and at this time, the data storage unit may store information on the input signal input by the control box. there is.

That is, the data storage unit not only stores data for proceeding laser hardening for each metal base material, that is, setting data, but also stores input signal data input by the control box, and as will be described later, Input signal data can be saved as setting data.

This will be described later.

Hereinafter, the operation of the laser curing system according to the present invention will be described in more detail.

Figure 2 is a flow chart for explaining the operation of the laser curing system according to the present invention.

As shown in FIG. 1 described above, the laser curing system for a metal base material according to the present invention includes a laser curing device 150; A control unit 160 for controlling the operation of the laser curing device 150; Mode setting unit 100 connected to the controller 160 and setting an operation mode of the laser curing device 150; A control box 110 connected to the controller 160 and manually controlling the laser curing device in the manual mode of the mode setting unit 100; and a data storage unit 140 connected to the control unit and providing data for controlling the laser curing device.

At this time, referring to FIG. 2, the operation of the laser curing system according to the present invention includes setting a mode by the mode setting unit (S110).

As described above, the mode setting unit 100 is for setting the operation mode of the laser curing device 150, and may be set to an automatic mode or a manual mode.

At this time, the manual mode may be defined as a semi-automatic mode as described above.

In addition, the mode setting unit may be located on the side of the laser oscillator, and the laser curing device may be driven by an operation mode set by the mode setting unit.

That is, when the mode setting unit is set to the automatic mode, the laser curing device operates in the automatic mode, and thus, the input signal by the above-described control box is not input.

In addition, when the mode setting unit is set to a manual mode, the laser curing device operates in an automatic mode, and when an input signal by the control box is detected, the laser curing device may be driven according to the input signal .

However, in the present invention, it has been described that the mode setting unit is located on the laser oscillator side, but the location of the mode setting unit is not limited in the present invention.

Next, the operation of the laser curing system according to the present invention includes determining the operation mode by the mode setting unit (S120), and when the operation mode is an automatic mode, laser curing according to the first set data. and driving the device (S150).

As described above, the first setting data is stored in the data storage unit and provided to the control unit, and the control unit may drive the laser curing device according to the first setting data.

In this case, the first setting data may include information such as a laser heat treatment temperature, a laser beam size, a laser beam output, a transport path of the laser head unit, and a transport speed of the laser head unit for each metal base material. The data storage unit may provide first setting data according to each metal base material to the control unit.

Next, the operation of the laser curing system according to the present invention includes determining the operation mode by the mode setting unit (S120), and when the operation mode is a manual mode, whether an input signal is detected from the control box and determining whether or not (S130).

In addition, the operation of the laser curing system according to the present invention, when the input signal is not detected from the control box (NO), includes the step of driving the laser curing device according to the first setting data (S150).

At this time, the operation of the laser curing system according to the present invention, when an input signal is detected from the control box (YES), includes driving the laser curing device according to the input signal (S140).

That is, as described above, when the mode setting unit is set to the manual mode, the laser curing device is automatically driven according to the first setting data stored in the data storage unit, and the input signal by the control box is detected. In this case, the laser curing device may be driven according to the input signal.

At this time, the input signal input by the control box may be an input signal for laser beam size or laser beam output, and such an input signal is transmitted to the controller, and the controller controls the laser curing device according to the input signal. can drive

For example, when the input signal is an input signal for laser beam output, the laser curing device performs the first set data, that is, the laser heat treatment temperature for each metal base material, the laser beam size, the laser beam output, and the laser beam output. It is driven by information such as the transfer path of the head unit and the transfer speed of the laser head unit, and in the case of the output of the laser beam, it is adjusted according to the input signal, so that the output of the laser beam of the laser curing device is adjusted and the output of the laser beam is adjusted. According to the data, laser curing by the laser curing device may be performed.

In this case, the rest of the data except for the data on the output of the laser beam, that is, the data of information such as laser heat treatment temperature, laser beam size, laser head transport path, and laser head transport speed for each metal base material are intact. While being maintained, laser curing by the laser curing device may proceed.

On the other hand, although not shown in the drawing, the operation of the laser curing system according to the present invention further includes driving the laser curing device according to the first setting data when the input signal is no longer detected from the control box. .

That is, in the present invention, in the above-described step S140, when an input signal is detected from the control box (YES), the laser curing device is driven according to the input signal, and then, no more input signal from the control box When is not detected, the laser curing device may be driven again according to the first set data.

This will be described in more detail through the configuration of a control box to be described later.

In this way, the laser curing system according to the present invention can be operated.

In the following, further operation of the laser curing system according to the present invention will be described.

Figure 3 is a flow chart for explaining the further operation of the laser curing system according to the present invention.

Referring to Figure 3, as described above, the operation of the laser curing system according to the present invention, when the input signal is detected from the control box (YES), the step of driving the laser curing device according to the input signal Includes (S140).

Next, the additional operation of the laser curing system according to the present invention includes storing the input signal data (S141).

That is, as described above, the input signal input by the control box may be an input signal for a laser beam size or a laser beam output, and such an input signal is transmitted to the controller, and the controller controls the input signal according to the input signal. The laser curing device may be driven.

At this time, the data for the input signal may be stored in the above-described data storage unit (140 in FIG. 1).

Next, the additional operation of the laser curing system according to the present invention includes evaluating the curing characteristics of the base material cured by the laser curing device driven according to the input signal, and determining whether the curing characteristics are satisfied. (S142).

Figure 4 (a) is a schematic perspective view for explaining the laser beam irradiation of the laser curing device according to the present invention, Figure 4 (b) is the curing characteristics of the base material hardened by the laser curing device according to the present invention It is a schematic perspective view to explain the evaluation of.

4 (a) and 4 (b), along the surface of the base material (M), a laser beam (BEAM) irradiation surface (H) may be formed, and the evaluation of the curing characteristics is the irradiation surface ( H) can be measured in the direction perpendicular to

At this time, the curing characteristics can be evaluated through the curing depth (15 μm or more), the hardness of the cured layer (Hv600 or more), the cross-sectional structure of the cured layer (martensite layer distribution), etc. However, in the present invention, the curing characteristics It does not limit the elements and standards of

Meanwhile, the base material according to the present invention may be as shown in Table 1 below.

[Table 1]

The base material according to the present invention of Table 1 may be cast iron of FC300 and FCD600, FC300 is flake graphite cast iron, and FCD600 corresponds to pearlite-type nodular cast iron.

That is, the FC300 material has graphite flaked, and the base structure is pearlite flake graphite cast iron, and FCD600 shows a structure distribution in which spheroidal graphite and base structure are pearlite.

However, the type of base material is only an example, and the type of base material is not limited in the present invention.

Continuing to refer to FIG. 3, the additional operation of the laser curing system according to the present invention includes the step of storing the input signal data as second set data when the curing characteristics of the cured base material are satisfied (YES). Includes (S143).

That is, in the present invention, when the mode setting unit is set to the manual mode, the laser curing device is automatically driven according to the first setting data stored in the data storage unit, and the input signal by the control box is detected In this case, the laser curing device may be driven according to the input signal.

At this time, the input signal input by the control box may be an input signal for laser beam size or laser beam output, and such an input signal is transmitted to the controller, and the controller controls the laser curing device according to the input signal. can drive

If the curing characteristics of the base material hardened by the manual mode operation of the laser curing system are satisfied, it means that the input signal data input by the control box is valid. Therefore, in the present invention, the input signal data By storing it as the second setting data, later, in proceeding with laser hardening on the same base material group, laser hardening can be automatically performed through the second setting data.

At this time, the input signal input by the control box is controlled by the user's arbitrary control, and according to step S140, the data storage unit may store the input signal data input by the control box.

In addition, the data storage unit stores the input signal data as setting data and second setting data, so that laser hardening can be automatically performed through the second setting data when performing laser hardening on the same base material group later. there is.

Hereinafter, the meaning of the manual mode according to the present invention will be described in more detail.

5 is a schematic diagram for explaining laser curing according to an automatic mode and a manual mode according to the present invention.

First, as shown in (a) of FIG. 5, assuming that there is a first base material group M1 having a uniform width and shape, in the case of a first base material group M1 having a uniform width and shape , Conditions for laser hardening the first base material group M1 may be simple.

For example, the first base material group M1 should undergo uniform laser curing at a first constant temperature. In the case of the first base material group M1, since the width and shape of the base material are uniform, the same laser curing is performed. Through hardening conditions, laser hardening may be performed on the first base material group M1.

Therefore, setting data for laser hardening the first base material group M1 can be easily derived, and through this setting data, the first base material group M1 can be laser hardened.

Next, as shown in (b) of FIG. 5, assuming that there is a second base material group M2 including a hole in a certain area of the base material, in the case of the second base material group M2 including the hole, Non-uniform curing may occur in the area of the hole.

For example, the laser hardening of the second base material group M2 should be uniformly performed at a second constant temperature. Since the second base material group M2 includes holes, the area adjacent to the hole b1 ) and the temperature of the boundary region b2 of the hole are not uniform.

That is, in the boundary area b2 of the hole, due to the effect of the laser beam irradiated onto the hole, the temperature due to the irradiation of the laser beam is higher than that in the area adjacent to the hole b1.

For this reason, non-uniform hardening occurs in the second base material group M2 as a whole, and in the present invention, when laser hardening is performed in the area including the hole, the user controls the output of the laser beam by the control box. By adjusting and driving the laser curing device through an input signal for the laser beam output, laser curing may be performed with a maximum uniform temperature distribution in the second base material group M2.

At this time, the control of the output of the laser beam may be adjusted according to the user's skill level, and as in FIG. 3 described above, when the hardening characteristics of the hardened base material are satisfied (YES), the input signal data is set as the set data , and later, when laser hardening is performed on the same second base material group M2, laser hardening may be automatically performed through the setting data.

Next, as shown in (c) of FIG. 5, assuming that there is a third base material group M3 whose width decreases including grooves in a certain area of the base material, the third base material group M3 including the grooves ), non-uniform curing may occur in the region of the groove.

For example, the third base material group M3 needs to undergo laser curing uniformly at a third constant temperature. Since the third base material group M3 includes grooves, the area adjacent to the grooves c1 ) and the temperature of the boundary region c2 of the groove is not uniform.

That is, in the boundary region c2 of the groove, due to the effect of the laser beam irradiated onto the groove, the temperature due to the irradiation of the laser beam is higher than that in the region adjacent to the groove c1.

For this reason, non-uniform hardening occurs in the third base material group M3 as a whole, and in the present invention, when laser hardening is performed in the area including the groove, the user controls the size of the laser beam by the control box. By adjusting and driving the laser curing device through an input signal for the laser beam size, laser curing may be performed with a maximum uniform temperature distribution in the third base material group M3.

At this time, the size of the laser beam can be adjusted according to the user's skill level, and as in FIG. 3 described above, when the hardening characteristics of the hardened base material are satisfied (YES), the input signal data is set as the set data. , and later, when laser hardening is performed on the same third base material group M3, laser hardening may be automatically performed through the setting data.

As described above, in laser hardening, selective heat treatment is performed on the required portion of the metal base material, that is, local heat treatment is performed. Therefore, in order to make the heat treatment characteristics uniform, based on the output of the same laser beam, the same heat treatment per unit area of the metal base material is performed. It is necessary to proceed with heat treatment at the temperature.

At this time, since the shape of the metal base material is not uniform, it is difficult to perform heat treatment at the same temperature per unit area of the metal base material based on the output of the same laser beam, and therefore, heat treatment at the same temperature per unit area of the metal base material. In order to proceed, it is necessary to control the laser beam according to the shape of the metal base material.

However, in the laser curing system according to the present invention, the user adjusts the output of the laser beam or the size of the laser beam by the control box, and the laser curing device is operated through an input signal for the output or laser beam size of the laser beam. By driving, laser hardening can be performed with the most uniform temperature distribution according to the shape of the metal base material.

In addition, in the present invention, when the hardening characteristics of the base material hardened through the input signal are satisfied, the input signal data is stored as setting data, and later, in proceeding with laser hardening on the same base material group, the setting data Laser curing can be performed automatically.

Hereinafter, an example of a laser curing system according to the present invention will be described.

As shown in FIG. 1 described above, the laser curing system according to the present invention includes a laser curing device 150; A control unit 160 for controlling the operation of the laser curing device 150; Mode setting unit 100 connected to the controller 160 and setting an operation mode of the laser curing device 150; A control box 110 connected to the controller 160 and manually controlling the laser curing device in the manual mode of the mode setting unit 100; and a data storage unit 140 connected to the control unit and providing data for controlling the laser curing device.

6 is a real picture showing a control box according to the present invention.

Referring to Figure 6, the control box 110 according to the present invention, the laser beam output control unit 111; and a laser beam size adjusting unit 112 disposed adjacent to the laser beam output adjusting unit 111. However, in the present invention, the laser beam output control unit 111; And it does not limit the arrangement relationship of the laser beam size control unit 112.

At this time, the laser beam size adjusting unit 112 includes a laser beam X-axis size adjusting unit 112a for adjusting the beam size of the X-axis (horizontal axis) in the square type laser beam; and a laser beam Y-axis size adjusting unit 112b for adjusting the beam size of the Y-axis (vertical axis).

As described above, according to the present invention, the laser beam oscillated from the laser head can be heat treated according to the shape of the product using a plurality of laser focus lenses other than 3 mm × 3 mm, and also the deformation and precision of the product. , In order to stabilize the quality, the laser focus lens can be installed to be variable up to 8 mm × 45 mm, so that a large area can be irradiated with one pass.

That is, to change the laser focus lens up to 8mm×45mm is the laser beam X-axis size adjusting unit 112a; And the laser beam Y-axis size can be varied through the adjusting unit (112b).

On the other hand, in Figure 6, the laser beam output control unit 111; And although it is shown that the laser beam size adjusting unit 112 is controlled by a jog-shuttle method, in the present invention, the laser beam output adjusting unit 111; And the control method of the laser beam size control unit 112 is not limited.

In addition, since the principle of controlling the output of the laser beam and the principle of controlling the size of the laser beam correspond to matters obvious in the art, a detailed description thereof will be omitted.

Continuing to refer to FIG. 6 , the control box 110 according to the present invention includes a mode switching unit 113 located in a first predetermined area of the control box.

At this time, as shown in the drawing, the mode conversion unit 113 can be divided into a manual control mode and an automatic control mode.

As described above, when the mode setting unit is set to the manual mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit, and when an input signal by the control box is detected, the The laser curing device may be driven according to an input signal.

At this time, when the mode conversion unit is set to the automatic control mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit.

In addition, when the mode conversion unit is set to the automatic control mode, the laser beam output control unit 111; And the laser beam size adjusting unit 112 does not operate, and therefore, even if the above-described jog shuttle is rotated, the laser beam output or the laser beam size is not adjusted.

In this situation, when the mode switching unit sets the manual control mode, the laser beam output control unit 111; And the laser beam size control unit 112 can operate, and thus, an input signal for adjusting the laser beam output or the laser beam size can be generated by the rotation of the jog shuttle.

On the other hand, as described above, in the above-described step S140, when an input signal is detected from the control box (YES), the laser curing device is driven according to the input signal, and then, there is no more input from the control box. When the signal is not detected, the laser curing device may be driven again according to the setting data.

At this time, when the input signal is no longer detected from the control box, it may correspond to a case where the mode switching unit is set back to the automatic control mode from the manual control mode.

That is, the control box according to the present invention can be operated as follows.

First, when the mode switching unit is set to an automatic control mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit, and laser curing may be performed.

Next, according to the needs of the user, for example, when laser curing the hole area of FIG. 5 (b) or laser hardening the groove area of FIG. 5 (c), the user By setting the conversion unit to manual control mode and operating the laser beam output control unit 111 or the laser beam size control unit 112 to generate an input signal for adjusting the laser beam output or the laser beam size, Laser curing may be performed using a laser curing device.

Next, after the user completes the operation of the laser beam output control unit 111 or the laser beam size control unit 112, by setting the mode conversion unit back to the automatic control mode, the laser curing device, It is automatically driven according to the setting data stored in the data storage unit, and laser curing may be performed.

Therefore, the mode switching unit according to the present invention can prevent unnecessary operation of the laser beam output adjusting unit 111 or the laser beam size adjusting unit 112, and the input signal is no longer detected from the control box. It can be converted to a case where it does not.

On the other hand, the mode setting unit 100 of FIG. 1 as described above is for setting the operation mode of the laser curing device 150, and can be set to an automatic mode or a manual mode, and the mode setting unit is set to an automatic mode. When set, the laser curing device operates in an automatic mode, and in this case, an input signal by the control box is not input.

In addition, only when the mode setting unit is set to manual mode, the laser curing device operates in automatic mode, and when an input signal by the control box is detected, the laser curing device can be driven according to the input signal is as described above.

Continuing to refer to FIG. 6 , the control box 110 according to the present invention includes a laser beam ON/OFF unit 114 located in a second predetermined area of the control box.

As described above, in the present invention, since the laser beam output control unit 111 or the laser beam size control unit 112 can be adjusted through the control box, the user's arbitrary operation can control the laser beam output. A safety accident may occur due to malfunction of the beam.

Therefore, by including the laser beam ON/OFF unit 114 in the control box according to the present invention, the user can turn the laser beam OFF or ON as needed.

7 is a real picture showing a laser curing device according to the present invention.

Referring to Figure 7, the laser curing device 150 according to the present invention, the robot arm unit 151; And it may include a laser head unit 152 located on one side of the robot arm unit, however, the type of the laser curing device is not limited in the present invention.

8 is a real picture showing a display unit according to the present invention.

Referring to FIG. 8 , the laser curing system for a metal base material according to the present invention may include a display unit 130 for displaying the operating state of the laser curing device and the control state of the control unit. However, in the present invention The presence or absence of the display unit is not limited.

9 is a real picture showing a laser oscillator according to the present invention.

As described above, the mode setting unit is located on the side of the laser oscillator 170, and when the mode setting unit is set to an automatic mode, the laser curing device automatically operates according to the setting data stored in the data storage unit. Since it is the same as described above, a detailed description thereof will be omitted. However, the type of laser oscillator is not limited in the present invention.

Although the embodiments of the present invention have been described with reference to the above and accompanying drawings, those skilled in the art to which the present invention pertains can implement the present invention in other specific forms without changing the technical spirit or essential features. You will understand that there is Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

Claims (5)

laser curing device;
a controller for controlling the operation of the laser curing device;
a mode setting unit connected to the control unit and configured to set an operation mode of the laser curing device;
a control box connected to the controller and manually controlling the laser curing device when the mode setting unit is in a manual mode; and
A data storage unit connected to the control unit and providing data for controlling the laser curing device;
When an input signal is detected from the control box, the laser curing device is driven according to the input signal,
When the hardening characteristics of the base material hardened by the laser hardening device driven according to the input signal are satisfied, the data of the input signal input by the control box is stored in the data storage unit as setting data. laser curing system. According to claim 1,
The mode setting unit is set to an automatic mode or a manual mode,
When the mode setting unit is set to an automatic mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit,
When the mode setting unit is set to manual mode, the laser curing device is automatically driven according to the setting data stored in the data storage unit, and when an input signal by the control box is detected, the laser curing device is automatically driven according to the input signal. A laser curing system, characterized in that the laser curing device is driven. According to claim 2,
The data storage unit includes data information of a laser heat treatment temperature, a laser beam size, a laser beam output, a transport path of the laser head unit, and a transport speed of the laser head unit for each metal base material. According to claim 3,
The control box includes a laser beam output control unit; And a laser beam size adjusting unit disposed adjacent to the laser beam output adjusting unit,
Characterized in that the input signal data is input signal data for the laser beam output controlled by the laser beam output control unit or input signal data for the laser beam size controlled by the laser beam size control unit. laser curing system. According to claim 4,
The control box further includes a mode switching unit located in a first predetermined area of the control box,
The mode conversion unit is divided into a manual control mode and an automatic control mode,
When the mode switching unit is set to the automatic control mode, the laser beam output control unit and the laser beam size control unit do not operate, and when the mode switching unit is set to the manual control mode, the laser A laser curing system, characterized in that the beam output adjusting unit and the laser beam size adjusting unit operate.

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