KR102546711B1 - Welding information providing apparatus - Google Patents

Abstract

One embodiment of the present invention, a camera unit including a main body provided to be worn by a user, mounted on the main body, and acquiring a welding image frame for a welding operation, and a camera unit disposed inside the main body, , A display unit for providing a welding image generated through a welding image frame, a path changing unit for changing the path of the welding image provided from the display unit and guiding it to the user's eyes, disposed on the path of the welding image, and displaying Provided is a welding information providing device including an inner cover unit that opens and closes a space formed by the unit and the path changing unit.

Description

Welding information providing apparatus {Welding information providing apparatus}

An embodiment of the present invention relates to a welding information providing device.

Wear protective gear to protect users from light and high heat generated during the welding process. While wearing the protective equipment, the user can only check the progress of welding through the protective equipment, so it is inconvenient to remove the protective equipment and check with the naked eye in order to check various information for welding, such as the conditions set in the welding device. there is

If the user's skill level is not high, especially when wearing the automatic welding face or the manual welding face, the user can see only the portion adjacent to the welding light, and it is difficult to recognize specific welding situations such as the welding environment. Accordingly, it is necessary to provide the user with a high-definition image that the user can visually check even the surrounding environment of the welding and to provide the user with detailed information about the welding state.

Moreover, during welding work, the illumination/luminance of the welding light spot is very high, so a blackening filter is used to protect the user's eyes from the welding light spot and to ensure that the welding work is performed smoothly. In this case, other areas other than the welding light spot is not visible at all, making it very difficult to weld, and the accuracy of welding may rather deteriorate.

The above problems can give the medical staff the same problems not only in welding work, but also in skin procedures and/or medical treatment using high-brightness/high-intensity light such as laser light. It becomes a problem.

SUMMARY OF THE INVENTION The present invention has been made in accordance with the above-described needs, and an object of the present invention is to provide a welding information providing apparatus capable of improving the user's welding accuracy by showing the welding environment as well as the welding spot to the user.

Another object of the present invention is to provide a welding information providing device capable of securing an accurate view during welding by preventing foreign matter from penetrating into a space providing welding information.

However, these tasks are illustrative, and the scope of the present invention is not limited thereby.

One embodiment of the present invention, the body provided to be worn by the user; a camera unit mounted on the main body and including at least one camera that acquires a welding image frame for a welding operation; a display unit disposed inside the main body and providing a welding image generated through the welding image frame; a path changing unit for changing a path of the welding image provided from the display unit and guiding the path to the user's eyes; and an inner cover unit disposed on a path of the welding image and opening and closing a space formed by the display unit and the path changing unit.

In one embodiment of the present invention, the inner cover unit may be disposed between the path change unit and the user's eyes.

In one embodiment of the present invention, the cover frame portion is installed on the main body, the central portion of which is opened; and an inner cover plate covering the central portion and connected to the cover frame portion.

In one embodiment of the present invention, the inner cover unit may further include a cover holder part having one end connected to the cover frame part and covering the inner cover plate.

In one embodiment of the present invention, the inner cover unit may further include a lens unit installable to the cover holder and disposed to face the inner cover plate.

In one embodiment of the present invention, the inner cover unit further includes a sealing part disposed between the cover frame part and the inner cover plate and having both sides in contact with the cover frame part and the inner cover plate, respectively. can do.

In one embodiment of the present invention, the sealing portion may be formed of a material capable of elastic deformation.

In one embodiment of the present invention, the path changing unit may include a mirror for guiding the path of the welding image provided from the display unit to the eyes of the user.

In one embodiment of the present invention, a processor controlling the display unit to display the welding image generated based on the welding image frame; may further include.

In one embodiment of the present invention, a virtual extension line extending from the optical axis of the camera may pass through the path changing unit.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims and detailed description of the invention.

The apparatus for providing welding information according to embodiments of the present invention changes the path of a welding image through a path change unit, delivers and provides the path to a user, and thus provides a clear welding image while providing a compact body size.

In addition, there is an effect of providing a clear welding image during welding by preventing foreign substances from penetrating the path of the welding image from the outside through the inner cover unit installed on the main body.

In addition, the welding information providing apparatus according to the embodiments of the present invention obtains an image through a camera unit disposed at a height similar to the user's field of view, thereby minimizing a sense of difference or incongruity with the actual work site and providing the user with a welding image. can do.

1 is a diagram for explaining the structure of a welding system according to an embodiment of the present invention.
Figure 2 is a simple block diagram for explaining the components of the welding system according to an embodiment of the present invention.
3 is a perspective view of a welding information providing device according to an embodiment of the present invention.
4 is a cross-sectional view taken along the line II′ of FIG. 3 .
5 is a perspective view showing a rear surface of a main body according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view of portion A of FIG. 5 in the yz plane.
7 is a view showing a state in which the cover holder unit is opened according to an embodiment of the present invention.
8 is a perspective view illustrating a cover holder unit and a lens unit according to an embodiment of the present invention.
FIG. 9 is a view showing a state in which the cover holder part is opened in FIG. 6 .
FIG. 10 is a cross-sectional view of portion B of FIG. 5 in the yz plane.
11 is a perspective view illustrating a welding information providing device according to another embodiment of the present invention.
FIG. 12 is a cross-sectional view taken along line II-II′ of FIG. 11 .

Hereinafter, the following embodiments will be described in detail with reference to the accompanying drawings, and when describing with reference to the drawings, the same or corresponding components are given the same reference numerals, and redundant description thereof will be omitted.

Since the present embodiments can apply various transformations, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. Effects and characteristics of the present embodiments, and methods for achieving them will become clear with reference to the details described later in conjunction with the drawings. However, the present embodiments are not limited to the embodiments disclosed below and may be implemented in various forms.

In the following embodiments, terms such as first and second are used for the purpose of distinguishing one component from another component without limiting meaning.

In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

In the following embodiments, terms such as include or have mean that features or elements described in the specification exist, and do not preclude the possibility that one or more other features or elements may be added.

In the following embodiments, when a part such as a unit, area, component, etc. is on or above another part, not only when it is directly above the other part, but also when another unit, area, component, etc. is interposed therebetween Including case

In the following embodiments, terms such as connect or combine do not necessarily mean direct and/or fixed connection or coupling of two members unless the context clearly indicates otherwise, and does not mean that another member is interposed between the two members. not to exclude

It means that the features or components described in the specification exist, and the possibility that one or more other features or components may be added is not excluded in advance.

In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the following embodiments are not necessarily limited to those shown.

1 is a diagram for explaining the structure of a welding system according to an embodiment of the present invention. Figure 2 is a simple block diagram for explaining the components of the welding system according to an embodiment of the present invention. 3 is a perspective view of a welding information providing device according to an embodiment of the present invention. 4 is a cross-sectional view taken along line II′ of FIG. 3 . 5 is a perspective view showing a rear surface of a main body according to an embodiment of the present invention. FIG. 6 is a cross-sectional view of portion A of FIG. 5 in the yz plane. 7 is a view showing a state in which the cover holder unit is opened according to an embodiment of the present invention. 8 is a perspective view illustrating a cover holder unit and a lens unit according to an embodiment of the present invention. FIG. 9 is a view showing a state in which the cover holder part is opened in FIG. 6 . FIG. 10 is a cross-sectional view of portion B of FIG. 5 in the yz plane.

Referring to FIG. 1 , a welding system 10 according to an embodiment of the present invention may include a welding information providing device 100 and a welding torch 200 .

The welding information providing device 100 and the welding torch 200 may be connected to each other through a communication network to transmit and receive data. The welding information providing device 100 and the welding torch 200 may be matched and operated one-to-one, but are not limited thereto, and may be operated in a one-to-many manner, and various modifications are possible.

That is, n welding torches 200 may be connected to one welding information providing device 100, and one welding torch 200 may be connected to n welding information providing devices 100. there is.

As an optional embodiment, the welding information providing device 100 and the welding torch 200 may exchange data by communicating with a separate server (not shown).

The welding information providing apparatus 100 according to an embodiment of the present invention may provide information on a welding situation to a user. Specifically, the welding information providing device 100 may obtain a welding image using at least one camera mounted on the welding information providing device 100 .

Based on this, a synthesized image may be generated and displayed to the user. The apparatus 100 for providing welding information according to an embodiment of the present invention can generate a synthesized image using HDR (High Dynamic Range) technology, and can display and provide a high-quality synthesized image to a user.

At this time, the user can visually check information about the surrounding environment other than the shape of the welding bead and the portion adjacent to the welding light through a high-definition composite image.

Referring to FIGS. 1, 3, and 4, the welding information providing apparatus 100 according to an embodiment of the present invention may obtain a welding image by arranging the camera unit 110 at a position equal to the user's field of view. .

Due to this, another welding information providing device 100 according to an embodiment of the present invention can provide more accurate welding information to the user by obtaining a welding image similar to that when the user directly looks at the work site while welding. there is.

In addition, the welding information providing apparatus 100 according to an embodiment of the present invention can synthesize high-quality welding images and provide them to the user. For this purpose, images are acquired through two or more cameras and each image is at least one It can be displayed through the display unit of.

Specifically, the camera unit 110 may include two cameras, and the two cameras may be disposed at positions corresponding to the user's left and right eyes, respectively.

The apparatus 100 for providing welding information according to an embodiment of the present invention may synthesize images by repeatedly taking pictures with different shutter speeds, ISO sensitivities, and gain values of each camera. According to another embodiment of the present invention, the apparatus 100 for providing welding information may improve image quality by performing contrast processing on a synthesized image.

In addition, the welding information providing device 100 according to an embodiment of the present invention provides a function of displaying welding information in preferred colors (eg, green, blue) using RGB (Red, Green, Blue). can do.

In addition, the apparatus 100 for providing welding information according to an embodiment of the present invention may provide a magnifying glass power correction function (eg, screen enlargement and reduction).

Also, the welding information providing apparatus 100 according to an embodiment of the present invention may provide a temperature synthesis image using a separate thermal image camera. At this time, the welding information providing device 100 may display the welding temperature in color.

The apparatus 100 for providing welding information according to the present invention may support a function of providing all of the above-described functions with sound (eg, guidance alarm) or guidance voice.

The welding torch 200 according to an embodiment of the present invention provides at least one welding situation including welding temperature, welding direction, welding inclination, welding speed, and the distance between the parent and the welding torch 200 for a real-time welding operation. It can be detected through a sensor.

The welding torch 200 may monitor the state of the torch and change the setting value of the torch operation according to the welding situation.

The welding information providing device 100 of the present invention can receive information on work settings and work conditions from the welding torch 200 through a communication network connected to the welding torch 200, and provides information to the user based on the received welding information. Task information can be provided through visual feedback.

For example, upon receiving sensing information on a welding temperature value, the apparatus 100 for providing welding information may output a notification corresponding to the temperature value in various ways such as light, vibration, or a message. In this case, the notification may be visual feedback provided to the display unit or display of the welding information providing device 100, and may be auditory feedback through sound (eg, guidance alarm) or guidance voice.

Meanwhile, the sensing information on the temperature value may include information on whether or not the temperature value exceeds a preset temperature range. In addition, the sensing information on the temperature value may include a numerical value, grade, level, etc. corresponding to the temperature value of the welding surface.

If the welding information providing apparatus 100 according to an embodiment of the present invention determines that the temperature values of the torch and the welding surface are out of a preset temperature range, it may guide the user to stop the operation.

In the case of welding out of a predetermined temperature range, there is a risk of quality deterioration, and thus the user may be guided to adjust the temperature value of the torch.

At this time, the visual feedback may be to provide an icon indicating danger to a partial area of the display unit of the welding information providing apparatus 100 displaying the work site.

As an optional embodiment, the welding information providing apparatus 100 may provide work stop guidance through visual feedback by repeating increasing and decreasing the saturation of a specific color (eg, red) on the entire screen of the display unit.

According to an embodiment of the present invention, the welding information providing device 100 may detect welding information through a sensor included in the welding information providing device 100 in addition to at least one sensor included in the welding torch 200. there is.

At this time, the welding information can detect welding conditions including light intensity, welding temperature, welding direction, welding inclination, welding speed, and the distance between the parent material and the welding torch 200 related to real-time welding work through at least one sensor. there is.

Similarly, the welding information providing device 100 according to an embodiment of the present invention may provide guiding corresponding to the welding information based on the welding information sensed through the sensor included in the welding information providing device 100. .

According to an embodiment of the present invention, the welding information providing apparatus 100 controls the operation of the welding torch 200 by sensing a preset user's movement or a preset user's voice after guidance on the location during operation is provided. can be changed

As an optional embodiment, the welding information providing device 100 may acquire the temperature values of the welding torch 200 and the welding surface through its own image sensing in a state where communication with the welding torch 200 is not smooth. .

In detail, the welding information providing apparatus 100 may obtain temperature values of the torch and the welding surface based on image data acquired through a thermal imaging camera.

The above example describes only the case where the information received from the welding torch 200 is welding temperature information, and the welding information providing apparatus 100 can provide guiding for various types of welding information.

1 to 10 , a welding system 10 according to an embodiment of the present invention may include a welding information providing device 100 and a welding torch 200 .

An apparatus for providing welding information 100 according to an embodiment of the present invention includes a main body 101, a camera unit 110, a display unit 120, a path change unit 130, a processor 140, and a sensor unit 150. , It may include an outer cover unit 160, an inner cover unit 170, a head fixing unit 180, and a communication unit.

5 to 8, 9, and 10, the main body 101 according to an embodiment of the present invention is for protecting the face of a user performing a welding operation, and may be provided to be worn by the user. there is. The main body 101 may be formed of a material having a predetermined strength, such as reinforced plastic.

However, it is not limited to this, and various materials may be used as long as they are resistant to factors such as sparks that may occur during welding.

The main body 101 according to an embodiment of the present invention may be fixed to the user's head through the head fixing part 180 provided inside the main body 101 . Specifically, the head fixing part 180 may be rotatably connected to the main body 101, and the main body 101 connected to the head fixing part 180 due to the head fixing part 180 being in contact with the user's head and fixed in position. ) can be stably fixed.

1, 3, 4, and 5, the main body 101 according to an embodiment of the present invention includes a camera unit 110, a display unit 120, and a path changing unit 130, which will be described later. , The processor 140, the sensor unit 150, the outer cover unit 160, the inner cover unit 170, the head fixing unit 180, and the communication unit 190 may be disposed, sparks generated during welding, It can protect users from heat etc.

Referring to FIGS. 2, 3, 4, 6, and 9, the camera unit 110 according to an embodiment of the present invention is mounted on the main body 101 and obtains a welding image frame for a welding operation. can do.

The camera unit 110 according to an embodiment of the present invention may include at least one camera mounted on the outside of the main body 101 and acquiring the welding image frame.

The camera unit 110 according to an embodiment of the present invention receives a control command from the processor 140 and changes shutter speed, ISO sensitivity, and gain settings in response to the control command to photograph a welding operation phenomenon. can

The camera unit 110 according to an embodiment of the present invention may be located on the front side of the main body 101 corresponding to the user's field of view. The camera unit 110 may include one camera to obtain a welding image frame for a welding operation, but the present invention is not limited thereto.

As an optional embodiment, the camera unit 110 may include two cameras disposed at positions corresponding to the user's left and right eyes, respectively.

As an optional embodiment, the camera unit 110 may further include a camera that acquires a welding image frame by taking a picture from a location other than the front portion of the body 101 corresponding to the user's field of view.

Referring to FIG. 4 , the camera unit 110 according to an embodiment of the present invention may be protected by an outer cover unit 160 .

Referring to FIG. 4 , an outer cover unit 160 according to an embodiment of the present invention may include an outer cover frame 161 , an outer cover plate 162 and a light blocking cartridge 163 .

Referring to FIG. 4 , the outer cover frame 161 according to an embodiment of the present invention may perform a function of connecting the outer cover unit 160 to the main body 101 . Due to this, the outer cover unit 160 can be stably fixed to the main body 101 .

The outer cover plate 162 according to an embodiment of the present invention is disposed on the front side (left side of FIG. 4 ) of the light blocking cartridge 163 to protect the light blocking cartridge 163 . The outer cover plate 162 may include a material through which light may pass, for example, a transparent material.

The outer cover plate 162 according to an embodiment of the present invention may include a resin material such as polycarbonate or acryl, and may be molded by injection molding.

Referring to FIG. 4 , the light blocking cartridge 163 according to an embodiment of the present invention can block welding light generated during a welding operation.

In other words, the light blocking cartridge 163 may increase the degree of light blocking of the cartridge based on welding light information sensed through the sensor unit 150, specifically, the photosensor.

At this time, the light blocking cartridge 163 may include, for example, a liquid crystal panel (LCD panel) in which the degree of blackening can be adjusted according to the alignment direction of liquid crystals. For example, the light blocking cartridge 163 may be implemented with various panels such as a Vertical Align (VA) type LCD, a Twist Nematic (TN) type LCD, and an In Plane Switching (IPS) type LCD.

The degree of blackening of the light blocking cartridge 163 according to an embodiment of the present invention may be automatically adjusted according to the brightness of the welding light. As described above, when the brightness of the welding light is automatically adjusted, the sensor unit 150 may be used.

The sensor unit 150 according to an embodiment of the present invention detects the light intensity of the welding light to obtain welding light information, converts the information on the intensity of the welding light included in the welding light information into a predetermined electrical signal, When transmitted to the processor 140 to be described later, the processor 140 may control the degree of blackening based on the intensity of the welding light.

That is, the light blocking cartridge 163 can change the light blocking degree of the panel in real time to correspond to the intensity of light generated from the welding surface at the welding work site, and the camera unit 110 is the light blocking cartridge 163 installed on the front side. As a result, a welding image in which a certain amount of welding light is shielded can be captured.

As an optional embodiment, the welding information providing device 100 may not include a light blocking cartridge. In this case, the user may perform the welding operation only with the welding image acquired through the camera unit 110 .

2 to 4 , the camera unit 110 according to an embodiment of the present invention may include a thermal imaging camera. The welding information providing apparatus 100 may obtain a temperature image by synthesizing a thermal image obtained through a thermal image camera with an image of a welding site.

Although not shown in the drawings, the camera unit 110 according to an embodiment of the present invention may further include a lighting unit (not shown) electrically connected to the processor 140 . The lighting unit is located outside the welding information providing device 100 and may irradiate a light source toward the welding work area.

The lighting unit may include a plurality of LED modules, and an output level of a light source irradiated through the lighting unit may be controlled by the processor 140 . The lighting unit may operate in conjunction with the operation of the camera unit 110 under the control of the processor 140 .

4, 5, and 7, the display unit 120 according to an embodiment of the present invention is disposed inside the main body 101 and can provide a welding image generated through a welding image frame. there is.

The display unit 120 according to an embodiment of the present invention may provide a welding image obtained from the camera unit 110 as it is or a high-definition synthesized image including welding information.

The display unit 120 according to an embodiment of the present invention allows a user performing a welding operation to visually check the surrounding environment (eg, the shape of a pre-worked welding bead, etc.) other than a portion adjacent to the welding light. It is possible to display a high-definition synthesized image so that

In addition, the display unit 120 may guide the user with visual feedback (eg, a welding progress direction) for the welding progress state.

The display unit 120 according to an embodiment of the present invention may be a Liquid Crystal Display (LCD), Organic Light Emitting Diodes (OLED), Light-Emitting Diode (LED), Liquid Crystal on Silicon (LcoS), or Digital Light Processing (DLP). ) and the like can be implemented with various display technologies.

4, 5 and 7, the display unit 120 according to an embodiment of the present invention is disposed inside the main body 101, not in a position to directly provide a welding image to the user's field of view, but behind it. It can be arranged in a position where a welding image can be provided indirectly by the path change unit 130 to be described.

Referring to FIG. 4 , the display unit 120 according to an embodiment of the present invention may be positioned such that a direction for providing a welding image is parallel to the optical axis AX1 of the camera unit 110 .

Referring to FIG. 4 , the display unit 120 according to an embodiment of the present invention may be located near the user's forehead and provide a welding image toward the path changing unit 130 .

Referring to FIG. 4 , the display unit 120 according to an embodiment of the present invention may be disposed facing the path changing unit 130 . As a result, the welding image generated by the display unit 120 may be transferred to the user's eyes through the path changing unit 130 .

4, 6, 7, 9, and 10, the path changing unit 130 according to an embodiment of the present invention is installed on the main body 101, and the main body 101 viewed by the user can be installed on the inner surface of

The path change unit 130 according to an embodiment of the present invention may be disposed facing the display unit 120 and change the welding image provided from the display unit 120 to guide the user's eyes. can do.

Referring to FIGS. 4, 6, 7, and 8 , the path changing unit 130 according to an embodiment of the present invention may include a mirror that reflects a welding image.

Referring to FIG. 4 , the path change unit 130 according to an embodiment of the present invention changes the path of the welding image provided from the display unit 120 (P1 -> P2), the first mirror 131, A second mirror 132 may be included to guide the user's eyes by changing the path of the welding image changed from the first mirror 131 (P2 -> P3).

Referring to FIG. 4, the path of a welding image is changed using two mirrors, but is not limited thereto, and three or more mirrors or a path-changing member are further included to change the path of a welding image. Of course, variations are possible.

The first mirror 131 and the second mirror 132 according to an embodiment of the present invention may be made of or coated with a material that reflects a welding image, for example, PMMA (poly methyl methacrylate), PC (poly carbonate), polyester, Ag (silver), and Al (aluminum).

The first mirror 131 according to an embodiment of the present invention is inclined at an angle of 45° to 50° with respect to the path of the welding image, so that the path of the welding image can be changed vertically.

Similarly, the second mirror 132 is inclined at an angle of 45° to 50° with respect to the path of the welding image changed from the first mirror 131, so that the path of the welding image can be changed vertically. For example, the first mirror 131 and the second mirror 132 may be disposed in an axisymmetric relationship based on a center line passing through the path changing unit 130, but the present invention is not limited thereto.

Referring to FIG. 4 , a welding image provided from the display unit 120 according to an embodiment of the present invention is reflected and inverted by the first mirror 131 and inverted again by the second mirror 132 so that the user can be provided to

At this time, in order to provide the user with the same image as the actual work site, the display unit 120 must provide a welding image with the top and bottom images reversed, so the welding image provided by the display unit 120 is the camera unit 110. ) may be an image in which the top and bottom and left and right of the acquired image are inverted.

As an optional embodiment, when the path change unit 130 includes more mirrors, the processor 140 converts the direction of the image acquired from the camera unit 110 to provide the user with the same image as the work site. It can be transmitted to the display unit 120.

Since it is difficult for the human eye to focus on an object that is too close, a clear image can be obtained only when the display unit 120 is placed at the focal length of the field of view. If the display unit 120 is disposed in front of the user, the size of the welding information providing device 100 has to be increased in order to secure such a distance.

The welding information providing apparatus 100 according to an embodiment of the present invention can secure the focal length of the welding image provided from the display unit 120 through the path change unit 130, and can set the display unit 120 appropriately. Since it can be placed in a position, the size of the main body 101 can be compactly configured.

A distance of a path through which a welding image passes from the display unit 120 to the user's eyes through the path change unit 130 according to an embodiment of the present invention may be 200 mm or more.

In addition, the user can work at a distance of about 500 mm to 700 mm from the field of view during work, and when the distance of the welding image path provided from the display unit 120 exceeds 700 mm, the user A sense of incongruity between the environment and the image may occur.

Accordingly, the path of the welding image changed through the path changing unit 130 may be determined within a range of 700 mm or less. In other words, the total distance of the P1 path, the P2 path, and the P3 path of FIG. 4 may be greater than or equal to 200 mm and less than or equal to 700 mm.

Referring to FIG. 4 , the welding information providing device 100 may further include an inner cover unit 170 to be described later between the path changing unit 130 and the user's eyes, that is, on a path through which a welding image passes. there is.

An effect of preventing foreign matter from penetrating into a space formed by the path changing unit 130, the camera unit 110, and the display unit 120 due to the inner cover unit 170 according to an embodiment of the present invention there is

The inner cover unit 170 according to an embodiment of the present invention will be described in detail later.

Referring to FIG. 2 , the processor 140 according to an embodiment of the present invention may control the display unit 120 to display a welding image generated based on a welding image frame.

The processor 140 according to an embodiment of the present invention may generate a high-quality synthesized image by synthesizing welding image frames received through the camera unit 110 . The processor 140 may obtain a synthesized image by setting different photographing conditions for each frame of the camera unit 110 and synthesizing frames obtained in time order in parallel.

In detail, the processor 140 may control the camera unit 110 to take pictures by changing the shutter speed, ISO sensitivity, and gain of the camera of the camera unit 110 .

In this case, the processor 140 may differently set shooting conditions according to conditions such as the sensed welding light at the welding site, ambient light, and the degree of movement of the welding torch 200 . Specifically, the processor 140 may set shooting conditions such that the ISO sensitivity and gain are reduced as the welding light and/or ambient light in the welding site is higher.

In addition, when it is detected that the movement and/or work speed of the welding torch 200 is fast, shooting conditions may be set to increase the shutter speed.

The processor 140 may synthesize images of a predetermined number of frames in parallel. According to an embodiment of the present invention, each image within a preset frame may be captured under different photographing conditions.

When there are two or more cameras of the camera unit 110, the processor 140 according to an embodiment of the present invention may differently set shooting setting conditions for each camera and control shooting. Even in this case, the processor 140 may synthesize images of a predetermined number of frames in parallel.

The processor 140 according to an embodiment of the present invention may control the overall operation of the welding information providing apparatus 100 using various programs stored in a memory (not shown).

For example, the processor 140 may include a CPU, RAM, ROM, and a system bus. Here, the ROM is a configuration in which a command set for system booting is stored, and the CPU copies the operating system stored in the memory of the welding information providing apparatus 100 to the RAM according to the command stored in the ROM, and executes the O / S to operate the system boot up

When booting is completed, the CPU can copy various applications stored in memory to RAM and execute them to perform various operations. In the above, the processor 140 has been described as including only one CPU, but may be implemented with a plurality of CPUs (or DSPs, SoCs, etc.).

According to an embodiment of the present invention, the processor 140 may be implemented as a digital signal processor (DSP), a microprocessor, and/or a time controller (TCON) that processes digital signals. can

However, it is not limited thereto, and a central processing unit (CPU), a micro controller unit (MCU), a micro processing unit (MPU), a controller, an application processor (AP), or It may include one or more of a communication processor (CP) and an ARM processor, or may be defined by the term.

In addition, the processor 140 may be implemented as a system on chip (SoC) having a processing algorithm, a large scale integration (LSI), or a field programmable gate array (FPGA).

Referring to FIG. 2 , the processor 140 according to an embodiment of the present invention is electrically connected to the communication unit 190, the display unit 120, the sensor unit 150, and the camera unit 110, and is electrically connected to each other. It is possible to transmit and receive signals and control driving of the welding information providing device 100 .

Referring to FIG. 2 , the sensor unit 150 according to an embodiment of the present invention may include a plurality of sensor modules configured to sense various information about a welding site and obtain welding information.

In this case, the welding information may include a welding temperature, a welding direction, a welding inclination, a welding speed, and a distance between the parent material and the welding torch 200 for the real-time welding operation. Moreover, the sensor unit 150 may include an optical sensor module configured to detect a light level at least within the welding work area.

According to an embodiment of the present invention, the sensor unit 150 may include an illuminance sensor, and at this time, the sensor unit 150 may obtain information about the intensity of welding light at a welding site.

The sensor unit 150 according to an embodiment of the present invention includes various types such as a proximity sensor, a noise sensor, a video sensor, an ultrasonic sensor, and an RF sensor in addition to an illuminance sensor. A sensor may be further included, and various changes related to the welding work environment may be sensed.

Referring to FIG. 4 , the camera unit 110 according to an embodiment of the present invention may be disposed at a position where a virtual extension line extending from the optical axis AX1 of the camera passes the path changing unit 130 .

Specifically, a virtual extension line extending from the optical axis AX1 of the camera unit 110 may pass through the second mirror 132 of the path changing unit 130 . The camera unit 110 according to an embodiment of the present invention is parallel to the path of the welding image from the second mirror 132 and has a range of ±30 mm in the vertical direction based on a virtual plane passing through the center of the second mirror 132. can be located within.

In other words, the camera unit 110 may be disposed on the front of the main body 101 to be positioned at a height similar to the user's field of view.

Due to this, it is possible to obtain an image identical to the user's eye level.

As an optional embodiment, the camera unit 110 may include two cameras corresponding to the user's left and right eyes, respectively. The two cameras may be symmetrically disposed with respect to the center line of the main body 101, and the distance between the optical axes of each camera may have a value ranging from 60 mm to 70 mm.

As described above, the second mirror 132 may be positioned within a range of ±30 mm in the vertical direction based on the imaginary plane passing through the center.

4 to 10, the inner cover unit 170 according to an embodiment of the present invention is disposed on the path of the welding image, and is formed by the display unit 120 and the path change unit 130. space can be opened.

4 to 10, the inner cover unit 170 according to an embodiment of the present invention includes a cover frame part 171, a cover holder part 175, a sealing part 179S, and a lens part 179L. can include

Referring to FIG. 4 , the cover frame part 171 according to an embodiment of the present invention is installed on the main body 101, and the central part may be opened. Referring to FIGS. 4 and 7 , the cover frame unit 171 according to an embodiment of the present invention may be installed on one side of the main body 101 facing the user.

Referring to FIGS. 6, 7, and 9 , the cover frame unit 171 according to an embodiment of the present invention may be formed of a material having predetermined rigidity.

Specifically, the cover frame part 171 may be formed of metal or plastic material, but the cover frame part 171 may be formed of various materials within the technical concept of being closely connected to the main body 101 and maintaining its shape. Of course.

Referring to FIG. 7 , a central portion of the cover frame unit 171 according to an embodiment of the present invention may be opened, and an inner cover plate 174, which will be described later, is in contact with the cover frame unit 171, and the cover frame unit 171 is in contact with the cover frame unit 171. (171) can cover the central part.

4, 6, and 9, since the inner cover plate 174 according to an embodiment of the present invention covers the central portion of the cover frame part 171, the user can use the inner cover unit 170 as a reference. It is possible to prevent foreign substances such as dust from being introduced into the inner space of the main body 101 from one side (right side in FIG. 4 ) to the other side (left side in FIG. 4 ).

Referring to FIG. 4, the inner space of the body 101 located on the other side (left side in FIG. 4) opposite to one side (right side in FIG. 4) of the inner cover unit 170 facing the user is the display unit 120 , may be formed by the path changing unit 130.

Referring to FIG. 4 , the display unit 120 installed inside the main body 101 according to an embodiment of the present invention receives a welding image frame for a welding operation obtained by the camera unit 110 as an electrical signal and receives , It is possible to provide a welding image generated through such a welding image frame.

An image provided by the display unit 120 may be transmitted and provided to the user's eyes through the path change unit 130 installed inside the main body 101 together with the display unit 120 .

Referring to FIG. 4 , the inner cover unit 170 according to an embodiment of the present invention is disposed between the path changing unit 130 and the user, and the inner cover unit 170 is generated from the display unit 120 The welding image may be placed on a path transmitted through the path change unit 130 .

Referring to FIG. 4 , when foreign substances such as dust are introduced into the inner space of the main body 101 in which the path changing unit 130 and the display unit 120 according to an embodiment of the present invention are disposed, the foreign substances are removed. It may contact or be attached to the path changing unit 130 including the first mirror 131 and the second mirror 132 .

This may interfere with the user's view of the welding image provided from the display unit 120 and transmitted to the user through the path changing unit 130, and welding work may not be performed efficiently due to this sense of heterogeneity. .

The inner cover unit 170 according to an embodiment of the present invention covers the space and is fixed to and installed on the main body 101, thereby preventing foreign substances such as dust from entering the space from the outside.

Referring to FIGS. 4, 5, 6, and 7 , the cover frame unit 171 according to an embodiment of the present invention may be fixed to and connected to the main body 101 along the circumference with respect to the central portion.

Referring to FIGS. 7, 9, and 10 , the cover frame unit 171 according to an embodiment of the present invention may be connected to the main body 101 along the circumference with respect to the center of the opening, and the cover frame unit 171 ), the hooking portion 172 may be protruded in one direction (lower direction based on FIG. 9).

9 and 10, the hooking part 172 may be formed of the same material as the cover frame part 171, and is formed on the cover holder part 175, specifically the gripping part 176, which will be described later. The hooking part 172 may be inserted into the seating part 176a.

Referring to FIGS. 9 and 10 , a plurality of hooking parts 172 according to an embodiment of the present invention may be provided and protrude from one side of the cover frame part 171 (lower side based on FIG. 9 ). Since the hanging portion 172 is inserted into the mounting portion 176a formed in the cover holder portion 175, the cover holder portion 175 covers the cover frame portion 171 and is stably fixed in position. .

9 and 10, in the hooking part 172 according to an embodiment of the present invention, one surface facing the direction in which the cover holder part 175, specifically, the gripping part 176 approaches is formed as an inclined surface. can

Specifically, the one surface may be formed to be inclined upward in a direction toward the camera unit 110 . Here, 'formed to be inclined upward' means that the height of the hooking part 172 protruding from the cover frame part 171 is formed to become relatively higher in the direction toward the camera unit 110 (from right to left direction in FIG. 9). means that

As a result, when the cover holder part 175 rotates clockwise (refer to FIG. 9) with the center C as the rotation axis and covers the cover frame part 171, the wave formed in the cover holder part 175 The branch 176 can stably move while contacting one surface (the lower surface of FIG. 9 ) of the hooking part 172 formed at an angle.

In addition to this, the cover holder part 175 is stably secured to the cover frame part 171 due to the other surface of the hooking part 172 (referring to FIG. ) and has the effect of being able to fix the position.

Referring to FIGS. 6, 7, 9, and 10 , a groove 173 may be formed along the circumference of the cover frame 171 according to an embodiment of the present invention based on the central portion formed in the shape of an opening. there is.

The groove part 173 according to an embodiment of the present invention may be formed in a groove shape having a predetermined depth, and a sealing part 179S may be installed in the groove part 173 .

The sealing part 179S according to an embodiment of the present invention may be formed of an elastically deformable material, specifically a rubber material, and the sealing part 179S is formed in the groove part 173 formed in the cover frame part 171. It is tight and can be installed.

Referring to FIGS. 6, 7, 9, and 10, the sealing part 179S according to an embodiment of the present invention is in close contact with the groove part 173 formed in the cover frame part 171 and can be fixed in position, , One side (right surface in FIG. 6 ) may be in close contact with the inner cover plate 174 .

Since the sealing part 179S according to an embodiment of the present invention is formed of a material capable of elastic deformation, the cover holder part 175 rotates on the cover frame part 171 and covers the cover frame part 171. The shape of the sealing portion 179S may be deformed, specifically compressed.

As a result, foreign substances such as dust may be prevented from moving into a space formed between the cover frame unit 171 and the inner cover plate 174 .

In addition, the inner space of the main body 101 from the outside is formed by the display unit 120 and the path change unit 130, and the display unit It is possible to prevent foreign substances such as dust from penetrating into a space in which a path through which the welding image provided in 120 is transmitted through the path change unit 130 is formed.

The groove part 173 formed in the cover frame part 171 according to an embodiment of the present invention extends along the circumference, but is not limited thereto, and a plurality of sections preset along the circumference of the cover frame part 171. Various modifications are possible, such as independently forming grooves 173 and installing sealing parts 179S in the plurality of grooves 173 .

Referring to FIGS. 4 to 6 , the inner cover plate 174 according to an embodiment of the present invention may cover a central portion formed in an opening shape in the cover frame portion 171 .

This has an effect of blocking the welding image from being introduced into the inner space of the main body 101 where a delivery path through which the welding image is transmitted to the user from the outside through the path change unit 130 is formed.

Referring to FIGS. 6 and 7 , the inner cover plate 174 according to an embodiment of the present invention is formed in a plate shape and may be formed of a transparent material. Due to this, the user can secure a view of the welding image provided from the display unit 120 and transferred through the path changing unit 130 .

However, it is not limited to this, and various modifications are possible, such as being formed by varying transparency.

Referring to FIGS. 6, 7, 9, and 10, the inner cover plate 174 according to an embodiment of the present invention has a predetermined area on one side (left side of FIG. 6) in contact with the sealing portion 179S. And, the other side (right side of FIG. 6 ) opposite to this may be in contact with the cover holder part 175 .

In a state in which the cover holder part 175 is connected to the inner cover plate 174, it is hinged in a clockwise direction (refer to FIG. 9) based on the center of rotation C to cover the cover frame part 171, at which time the inner cover The plate 174 is disposed between the sealing portion 179S extending along the circumference and the cover holder portion 175, and both sides may be in close contact with the sealing portion 179S and the cover holder portion 175 and fixed in position. there is.

As a result, it is possible to block foreign substances such as dust from penetrating into the inner space of the main body 101, specifically, the space formed by the display unit 120 and the path change unit 130 and where the transmission path of the welding image is formed. There is an effect.

The inner cover plate 174 according to an embodiment of the present invention is replaceable, the cover holder part 175 is spaced apart from the inner cover plate 174, and the groove part 173 formed in the cover frame part 171 The inner cover plate 174 may be removed from the disposed sealing portion 179S, and may be disposed again after cleaning or replacement.

4 to 10, the cover holder part 175 according to an embodiment of the present invention has one end connected to the cover frame part 171, and the inner cover plate connected to the cover frame part 171 ( 174) can be covered.

6 and 9, the cover holder part 175 according to an embodiment of the present invention has one end (upper part based on FIG. 9) connected to the cover frame part 171, and the cover frame part 171 and It is possible to rotate in a clockwise or counterclockwise direction by using a predetermined point formed in the area to which the cover holder unit 175 is connected as the center of rotation (C).

Specifically, when the cover holder part 175 rotates clockwise with respect to the rotation center C, the cover frame part 171 and the inner cover plate 174 connected to the cover frame part 171 can be covered. .

Conversely, when the cover holder part 175 rotates counterclockwise about the rotation center C, it is spaced apart from the cover frame part 171 and the inner cover plate 174 connected to the cover frame part 171, The inner cover plate 174 may be removed from the cover frame part 171 .

Referring to FIGS. 5 and 8 , the cover holder part 175 according to an embodiment of the present invention includes a central part formed in an opening shape in the cover frame part 171 and an inner cover connected to the cover frame part 171. An area overlapping the plate 174 may be formed in an opening shape.

4 to 10 , a lens unit 179L may be installed in the area formed in the cover holder unit 175 according to an embodiment of the present invention. The lens unit 179L may be formed of a transparent material and may be formed with different degrees of refraction.

As a result, the lens unit 179L having various refractive degrees can be installed in the cover holder unit 175 according to the eyesight of the user using the welding information providing device 100, and the user can receive an accurate welding image. there is.

Referring to FIGS. 5, 7, 8, and 9, the cover holder unit 175 according to an embodiment of the present invention has one end along the circumference and a lens unit 179L installed in the cover holder unit 175. The lens fixing part 177 may protrude outward and extend so as to be in contact with.

Referring to FIGS. 5, 7, and 8, a plurality of lens fixing units 177 according to an embodiment of the present invention may be provided, and may be provided on the lens unit 179L disposed in the cover holder unit 175. There is an effect of contacting a plurality of formed points and fixing the position of the lens unit 179L.

Referring to FIG. 8 , a lens fixing unit 177 according to an embodiment of the present invention may have a curved surface 178 at one end contactable with the lens unit 179L disposed on the cover holder unit 175 .

As a result, as shown in FIG. 8 , when the lens unit 179L is placed on the cover holder unit 175, it can be installed by sliding in a preset direction, and contacting the curved surface 178 formed on the lens fixing unit 177. In this state, the lens unit 179L can be easily installed at a preset position.

Referring to FIG. 8 , a plurality of lens fixing parts 177 formed on the cover holder part 175 according to an embodiment of the present invention are disposed symmetrically on both sides of the cover holder part 175 based on the center. can

As a result, the plurality of lens fixing parts 177 contact and press a plurality of points that are symmetrical to each other with respect to the center on the lens part 179L disposed on the cover holder part 175 and press the lens part 179L into the cover holder part ( 175) can be stably fixed in position.

6 to 10, the gripping part 176 is provided at the other end opposite to one end of the cover holder part 175 rotatably connected to the cover frame part 171 according to an embodiment of the present invention. may protrude.

The gripping part 176 according to an embodiment of the present invention rotates clockwise with the point where the cover holder part 175 is connected to the cover frame part 171 as the center of rotation C, and the cover frame part 171 And when the inner cover plate 174 disposed on the cover frame part 171 is pressed and covered, it can come into contact with one side of the cover frame part 171 (lower side in FIG. 6 ).

Referring to FIGS. 6 to 10 , a plurality of gripping parts 176 according to an embodiment of the present invention may be provided on the cover holder part 175 .

A seating portion 176a may be formed on the holding portion 176 according to an embodiment of the present invention. In the present invention, the seating portion 176a is formed in the shape of a hole, but is not limited thereto, and the hooking portion 172 protruding outward from one side of the cover frame portion 171 (lower side in FIG. 9) Various modifications are possible, such as being formed in the shape of a groove having a predetermined depth within the technical idea that can be inserted and spanned.

6 and 9, the gripping part 176 according to an embodiment of the present invention, as the cover holder part 175 rotates clockwise with respect to the rotation center C, the cover frame part 171 ) It is possible to contact the engaging portion 172 formed in.

Specifically, the gripping part 176 is movable along one surface (the lower surface in FIG. 9 ) inclined to the hooking part 172, and the seating part 176a formed on the gripping part 176 is the cover frame part 171. As it spans the hooking portion 172 formed on the cover holder 175, the cover frame portion 171 and the inner cover plate 174 installed on the cover frame portion 171 can be contacted and pressed to fix the position. There is an effect.

As the cover holder unit 175 contacts and presses the cover frame unit 171 and the inner cover plate 174 installed on the cover frame unit 171, the inner cover plate 174 and the cover frame unit 171 are installed. The adhesion between the sealing parts 179S is increased, and foreign substances such as dust are prevented from entering the inner space of the main body 101, specifically, the space formed by the display unit 120 and the path changing unit 130 from the outside. can block

Since foreign substances such as dust are blocked from entering the space, contamination of the path changing unit 130 and the like is prevented, and foreign substances are attached to the path changing unit 130, so that the display unit 120 It is possible to prevent the viewing of the welding image provided from and transmitted to the user through the path changing unit 130 from being obstructed.

Referring to FIGS. 6, 9, and 10, a plurality of surfaces (refer to FIG. 6) on which the cover holder 175 is formed on the cover frame 171 due to the gripper 176 according to an embodiment of the present invention. The right side and the bottom side) can be wrapped and covered, and the cover frame unit 171 and the inner cover plate 174 installed on the cover frame unit 171 can be stably covered.

Referring to FIGS. 3 and 4 , the head fixing part 180 according to an embodiment of the present invention is disposed on the rear surface of the main body 101 and can be connected to the main body 101 . The user can place the head fixing unit 180 in contact with the user's head, whereby the position of the welding information providing device 100 can be stably fixed.

The head fixing unit 180 according to an embodiment of the present invention may include an adjusting unit (reference numeral not set) capable of adjusting the circumferential length of the inner surface of the head fixing unit 180 according to the size of the head of the user.

The user grips the control part and rotates it clockwise or counterclockwise to adjust the circumference of the head fixing part 180, and the head fixing part 180 and the main body 101 connected to the head fixing part 180 are attached to the user's head. It allows it to be stably fixed in position from the outside.

Referring to FIGS. 3 and 4 , both sides of the head fixing part 180 according to an embodiment of the present invention may be connected to the main body 101 . Both sides of the head fixing part 180 may be rotatably connected to the main body 101, and the user rotates the main body 101 in a state where the head fixing part 180 is fixed on the user's head so that the user's external It has the effect of securing a view on the environment.

Referring to FIG. 4, the rotation unit according to an embodiment of the present invention adjusts the circumferential length of the head fixing unit 180 in a rotational manner, but is not limited thereto, and the head fixing unit 180 in a slide movement method or a button method. ), various modifications are possible within the technical idea that can be in close contact with the user's head, such as adjusting the circumference length.

3 and 4, the head fixing part 180 according to an embodiment of the present invention may have a structure including a plurality of ribs like a head gear, and may be directly connected to the head of a user performing a welding operation. An element including a soft material such as a fiber material or a cushion material may be disposed on at least a portion of the inner surface that is in contact with the element.

Referring to FIG. 2 , the communication unit 190 according to an embodiment of the present invention is a component for receiving welding information from the welding torch 200 and transmitting a command for controlling the welding torch 200 .

According to an embodiment of the present invention, the communication unit 190 may transmit the synthesized image to an external device other than the welding torch 200 . In this case, the external device may include various devices including a communication module such as a worker/third party's smart phone or computer.

The communication unit 190 according to an embodiment of the present invention may be configured to perform communication with various types of external devices according to various types of communication methods. The communication unit 190 may include at least one of a Wi-Fi chip, a Bluetooth chip, a wireless communication chip, and an NFC chip.

In particular, in the case of using a Wi-Fi chip or a Bluetooth chip, various types of information such as an SSID and a session key are first transmitted and received, and various types of information can be transmitted and received after communication is connected using the same.

The wireless communication chip refers to a chip that performs communication according to various communication standards such as IEEE, Zigbee, 3rd Generation (3G), 3rd Generation Partnership Project (3GPP), and Long Term Evolution (LTE).

The NFC chip refers to a chip that operates in a Near Field Communication (NFC) method using a 13.56 MHz band among various RF-ID frequency bands such as 135 kHz, 13.56 MHz, 433 MHz, 860 to 960 MHz, and 2.45 GHz.

Meanwhile, although not shown, the welding torch 200 may include a communication unit, a sensor unit, and a second processor (not shown).

The communication unit according to an embodiment of the present invention may transmit and receive data with the welding information providing apparatus 100 . The communication unit includes a module capable of short-range wireless communication (eg, Bluetooth, Wifi, Wifi-Direct) or long-distance wireless communication (3G, HSDPA (High-Speed Downlink Packet Access) or LTE (Long Term Evolution)) can do.

The communication unit transmits and receives data with the welding information providing device 100 . The communication unit includes a module capable of short-range wireless communication (eg, Bluetooth, Wifi, Wifi-Direct) or long-distance wireless communication (3G, HSDPA (High-Speed Downlink Packet Access) or LTE (Long Term Evolution)) can do.

The sensor unit or the second sensor is included in the welding torch 200 and is configured to sense welding conditions such as welding temperature, welding speed, welding inclination, welding direction, and a distance between the parent material and the welding torch 200 .

The sensor unit detects at least one of various changes such as a change in posture of the user holding the welding torch 200, a change in roughness of a welding surface, a change in acceleration of the welding torch 200, and the like, and transmits an electrical signal corresponding thereto to the second processor. can be forwarded to That is, the sensor unit may detect a state change based on the welding torch 200, generate a corresponding detection signal, and transmit it to the second processor.

In the present disclosure, the sensor unit may be composed of various sensors, and when the welding torch 200 is driven (or based on a user setting), power is supplied to at least one preset sensor according to control to detect a state change of the welding torch 200. can do.

In this case, the sensor unit may include at least one device among all types of sensing devices capable of detecting a state change of the welding torch 200 . For example, the sensor unit 150 may include an acceleration sensor, a gyro sensor, an illuminance sensor, a proximity sensor, a pressure sensor, and a noise sensor. ), a video sensor, a gravity sensor, and the like. The degree of light within the welding work area detected by the illuminance sensor of the welding torch 200 may be transmitted to a processor through a communication unit, and the processor does not pass through the sensor unit of the welding information providing device 100, but to the welding torch 200. Based on the degree of light transmitted through the illuminance sensor, a lighting unit (not shown) and/or the camera unit 110, specifically a camera, may be controlled.

On the other hand, the acceleration sensor is a component for sensing the movement of the welding torch 200. Specifically, since the acceleration sensor can measure dynamic forces such as acceleration, vibration, and shock of the welding torch 200, it can measure the movement of the welding torch 200.

The gravity sensor is a component for detecting the direction of gravity. That is, the detection result of the gravity sensor may be used to determine the movement of the welding torch 200 together with the acceleration sensor. In addition, the direction in which the welding torch 200 is gripped may be determined through the gravity sensor.

In addition to the above-described type of sensor, the welding torch 200 may further include various types of sensors such as a gyroscope sensor, a geomagnetic sensor, an ultrasonic sensor, and an RF sensor, and may detect various changes related to the welding work environment. .

The welding information providing device 100 according to an embodiment of the present invention is installed on the main body 101 and the internal space of the main body 101 from the outside due to the inner cover unit 170 disposed on the path of the welding image, Specifically, foreign substances such as dust may be prevented from being introduced into a space formed by the display unit 120 and the path changing unit 130 .

In addition, the cover holder part 175 may be rotatably connected in a clockwise or counterclockwise direction with the area connected to the cover frame part 171 as the center of rotation C, and thereby the cover frame part 171 There is an effect of allowing the installed inner cover plate 174 to be stably fixed in position while maintaining a state of close contact with the cover frame part 171 .

In addition, the sealing part 179S is seated in the groove part 173 formed in the cover frame part 171, and one side of the sealing part 179S is in close contact with the inner cover plate 174, so that the inner cover plate 174 and the cover The space formed between the frame parts 171 can be closed, and there is an effect of preventing foreign substances such as dust from entering through the space.

In addition, the inner cover plate 174 is formed in a plate shape and is disposed between the cover frame part 171 and the cover holder part 175, so that replacement is easy.

In addition, the lens unit 179L covers an area where the cover holder unit 175 is formed in an opening shape, and the lens fixing unit 177 protruding from the cover holder unit 175 contacts and presses the lens unit 179L. Due to this, there is an effect of stably fixing the position of the lens unit 179L.

In addition, the lens unit 179L may be disposed on the cover holder unit 175 so as to come into contact with the lens fixing unit 177 formed in the cover holder unit 175, and release contact with the lens fixing unit 177. In this way, the lens unit 179L can be detached from the cover holder unit 175, so that it can be easily replaced with the lens unit 179L having a different degree of refraction according to the user's visual acuity.

Hereinafter, the configuration, operating principle and effect of a welding information providing device according to another embodiment of the present invention will be described.

11 is a perspective view illustrating a welding information providing device according to another embodiment of the present invention. FIG. 12 is a cross-sectional view taken along line II-II′ of FIG. 11 .

11 and 12, a welding information providing device 100` according to another embodiment of the present invention includes a main body 101, a camera unit 110, a display unit 120, a path changing unit 130, It may include a processor 140 (see FIG. 2), a sensor unit 150 (see FIG. 2), a head fixing unit 180, and a communication unit 190 (see FIG. 2).

Welding information providing device 100` according to another embodiment of the present invention is the welding information providing device 100 according to an embodiment of the present invention, except that the path changing unit 130 includes a single mirror. Since the configuration, operating principle, and effect are the same as those of the above, a detailed description thereof will be omitted to the extent that it overlaps.

The main body 101 is for protecting the user's face and may be provided to be worn by the user. The main body 101 may be fixed to the user's head through the head fixing part 180 provided inside the main body 101 .

The camera unit 110 may include at least one camera mounted on the outside of the main body 101 and acquiring a welding image frame for a welding operation. The camera unit 110 may receive a control command from the processor 140 and change shutter speed, ISO sensitivity, and gain settings in response to the control command to take a picture of a welding operation.

The camera unit 110 may be disposed at a position where a virtual extension line extending from the optical axis AX1 of the camera passes the path changing unit 130 . A virtual extension line extending from the optical axis AX1 of the camera unit 110 may pass through the path changing unit 130 .

Specifically, the camera unit 110 is parallel to the path of the welding image from the path changing unit 130 and may be positioned within a range of ±30 mm in the vertical direction based on a virtual first surface passing through the center O2 of the mirror. .

In other words, the camera unit 110 may be disposed on the front of the main body 101 so as to be positioned at a height similar to that of the user's field of view, thereby obtaining an image identical to that of the user's eye level.

The camera unit 110 may be protected by the outer cover unit 160 . The outer cover unit 160 may include a light blocking cartridge. The light blocking cartridge may block welding light generated when welding occurs. That is, the light blocking cartridge may increase the light blocking degree of the cartridge based on welding light information sensed through a sensor unit, for example, a photo sensor.

At this time, the light blocking cartridge may include, for example, a liquid crystal panel (LCD panel) in which the degree of blackening can be adjusted according to the alignment direction of liquid crystals. For example, the light blocking cartridge 163 may be implemented with various panels such as a Vertical Align (VA) type LCD, a Twist Nematic (TN) type LCD, and an In Plane Switching (IPS) type LCD.

The display unit 120 is disposed inside the main body 101 and may provide a welding image. The display unit 120 may provide the welding image obtained from the camera unit 110 as it is or a high-definition synthesized image including welding information.

The display unit 120 is disposed inside the main body 101, not at a position that directly provides a welding image to the user's field of view, but at a position that can indirectly provide a welding image by a path changing unit 130 described later. can be placed.

The display unit 120 may be positioned such that a direction for providing a welding image is perpendicular to the optical axis AX1 of the camera unit 110 . In other words, as shown in FIG. 8 , the display unit 130 may provide a welding image toward the path change unit 130 located near the user's forehead and located below.

Since the welding image provided from the display unit 120 is reflected and inverted through one mirror, the processor 140 converts the direction of the image acquired from the camera unit 110 to correspond thereto and provides it to the display unit 120. can do.

The path change unit 130 may perform a function of changing the path of the welding image provided from the display unit 120 and guiding it to the user's eyes. For example, the path change unit 130 may be formed of a mirror that reflects a welding image.

Referring to FIG. 12 , the path changing unit 130 according to another embodiment of the present invention may include one mirror and change the path of a welding image provided from the display unit 120 (A → B). It can be guided directly by the user's eyes.

Here, the path change unit 130 may be made of or coated with a material that reflects the welding image, for example, PMMA (poly methyl methacrylate), PC (poly carbonate), Polyester, Ag (silver), Al (aluminum) ) can be made of any one of them. The path change unit 130 is inclined at an angle of 45° to 50° with respect to the path of the welding image, so that it can vertically change the path of the welding image.

The distance of a path through which the welding image passes from the display unit 120 to the user's eyes through the path changing unit 130 having the above structure may be 200 mm or more.

In addition, the user can work at a distance of about 500 mm to 700 mm from the field of view during work, and when the distance of the welding image path provided from the display unit 120 exceeds 700 mm, the user A sense of incongruity between the environment and the image may occur. Accordingly, the path of the welding image changed through the path changing unit 130 may be determined within a range of 700 mm or less.

In other words, the total distance of the P1 path, the P2 path, and the P3 path of FIG. 4 may be greater than or equal to 200 mm and less than or equal to 700 mm.

Referring to FIG. 12, the welding information providing device 100′ according to another embodiment of the present invention includes an inner cover unit 170 between the path change unit 130 and the user's eyes, that is, on the path through which the welding image passes. ) may be further included.

Referring to FIG. 12, the inner cover unit 170 provided in the welding information providing device 100′ according to another embodiment of the present invention includes a cover frame part 171, an inner cover plate 174, and a cover holder part ( 175), a sealing unit 179S, and a lens unit 179L, which are configured and operated with the inner cover unit 170 provided in the welding information providing device 100 according to an embodiment of the present invention. Since the effect and the effect are the same, a detailed description thereof will be omitted in the overlapping range.

As described above, the welding information providing apparatus according to the embodiments of the present invention changes the path of the welding image through the path changing unit and provides it to the user, so that the size of the body can be configured compactly while providing a clear welding image. there is.

In addition, the welding information providing apparatus according to the embodiments of the present invention obtains an image through a camera unit disposed at a height similar to the user's field of view, thereby minimizing the sense of difference or discomfort with the actual work site and providing the user with a welding image. can do.

In addition, since the inner cover unit is disposed between the user and the path change unit, the welding information providing apparatus according to embodiments of the present invention prevents foreign matter from penetrating into the inner space of the main body formed by the display unit and the path change unit. There is an effect that the user can clearly receive the welding image provided from the display unit by blocking it.

As such, the present invention has been described with reference to an embodiment shown in the drawings, but this is only exemplary, and those skilled in the art will understand that various modifications and variations of the embodiment are possible therefrom. Therefore, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

10: welding system 100, 100`: welding information providing device
101: body 110: camera unit
120: display unit 130, 130`: path change unit
131: first mirror 132: second mirror
140: processor 150: sensor unit
160: outer cover unit 161: outer cover frame
162: outer cover plate 163: light blocking cartridge
170: inner cover unit 171: cover frame part
172: hanging part 173: groove part
174: inner cover plate 175: cover holder part
176: holding part 176a: seating part
177: lens fixing part 178: curved surface
179S: sealing part 179L: lens part
180: head fixing part 190: communication part
200: welding torch

Claims (10)

a main body provided to be worn by a user;
a camera unit mounted on the main body and including at least one camera that acquires a welding image frame for a welding operation;
a display unit disposed inside the main body and providing a welding image generated through the welding image frame;
a path changing unit for changing a path of the welding image provided from the display unit and guiding the path to the user's eyes; and
An inner cover unit disposed on a path of the welding image and opening and closing a space formed by the display unit and the path changing unit;
The path change unit may include a first mirror for changing the path of the welding image provided from the display unit; A second mirror for changing the path of the welding image changed from the first mirror and guiding it to the user's eyes;
The first mirror is inclined at an angle of 45 ° to 50 ° with respect to the path of the welding image,
The second mirror is inclined at an angle of 45 ° to 50 ° with respect to the path of the welding image changed from the first mirror,
A virtual extension line extending from the optical axis of the camera unit passes through the second mirror, and the optical axis of the camera unit is parallel to a path of a welding image from the second mirror to the user's eyes, providing welding information. Device. According to claim 1,
The inner cover unit is disposed between the path changing unit and the user's eyes, welding information providing device. According to claim 1,
The inner cover unit,
a cover frame part installed on the main body and having an open central part; and
Including, welding information providing device; an inner cover plate that covers the central portion and is connected to the cover frame portion. According to claim 3,
The inner cover unit, one end connected to the cover frame portion, the cover holder portion for covering the inner cover plate; further comprising, the welding information providing device. According to claim 4,
The inner cover unit may be installed in the cover holder part, and the lens part disposed to face the inner cover plate; further comprising a welding information providing device. According to claim 3,
The inner cover unit further includes a sealing part disposed between the cover frame part and the inner cover plate, both sides of which come into contact with the cover frame part and the inner cover plate, respectively. According to claim 6,
The sealing portion is formed of a material capable of elastic deformation, welding information providing device. delete According to claim 1,
The welding information providing apparatus further comprising a; processor controlling the display unit to display the welding image generated based on the welding image frame. According to claim 1,
A virtual extension line extending from the optical axis of the camera passes through the path change unit, welding information providing device.

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