KR102593131B1 - Welding information providing apparatus - Google Patents

Abstract

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

Description

Welding information providing apparatus}

Embodiments of the present invention relate to a welding information providing device.

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

If the user's skill level is not high, especially when wearing an automatic welding surface or a manual welding surface, the user can only see the part adjacent to the welding light, and it is difficult to recognize the specific welding situation, such as the environment around the welding. Accordingly, there is a need to provide users with high-definition images that allow them to visually check the environment surrounding the welding, and to provide users with specific information about welding status information.

Moreover, during welding work, the illuminance/brightness 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 smooth welding work. In this case, areas other than the welding light spot are used. becomes completely invisible, making welding work very difficult, and the accuracy of welding may actually deteriorate.

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

The present invention, in response to the above-described need, aims to provide a welding information providing device that can improve the user's welding accuracy by showing the user not only the welding spot but also the surrounding environment around the welding.

In addition, the purpose is to provide a welding information providing device that can secure an accurate view during welding by preventing foreign substances from penetrating into the space providing welding information.

However, these tasks are illustrative and do not limit the scope of the present invention.

One embodiment of the present invention includes a main body provided to be worn by a user; a camera unit mounted on the main body and including at least one camera for acquiring welding image frames for welding operations; a display unit disposed inside the main body and providing a welding image generated through the welding image frame; a path change unit that changes the path of the welding image provided from the display unit and guides it to the user's eyes; and an inner cover unit disposed on the path of the welding image and opening and closing the space formed by the display unit and the path change 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, a cover frame portion installed on the main body and having an open central portion; and an inner cover plate that covers the central portion and is connected to the cover frame portion.

In one embodiment of the present invention, the inner cover unit may further include a cover holder portion whose one end is connected to the cover frame portion and covers the inner cover plate.

In one embodiment of the present invention, the inner cover unit may further include a lens portion that can be installed on the cover holder portion and is disposed to face the inner cover plate.

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

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

In one embodiment of the present invention, the path change unit may include a mirror that guides the user's eyes to the path of the welding image provided from the display unit.

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

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

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

The welding information providing device according to embodiments of the present invention changes the path of the welding image through a path change unit and delivers and provides it to the user, thereby providing a clear welding image and making the main body compact in size.

In addition, the inner cover unit installed in the main body prevents foreign substances from penetrating into the path of the welding image from the outside, thereby providing a clear welding image during welding.

In addition, the welding information providing device according to embodiments of the present invention obtains images through a camera unit placed at a height similar to the user's field of view, thereby providing welding images to the user by minimizing the sense of heterogeneity or incongruity with the actual work site. 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 simplified block diagram for explaining the components of a welding system according to an embodiment of the present invention.
Figure 3 is a perspective view of a welding information providing device according to an embodiment of the present invention.
Figure 4 is a cross-sectional view taken along line II' of Figure 3.
Figure 5 is a perspective view showing the rear of the 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.
Figure 7 is a diagram showing the cover holder portion in an open state according to an embodiment of the present invention.
Figure 8 is a perspective view showing a cover holder portion and a lens portion according to an embodiment of the present invention.
Figure 9 is a view showing the cover holder part in an open state in Figure 6.
FIG. 10 is a cross-sectional view of portion B of FIG. 5 in the yz plane.
Figure 11 is a perspective view showing 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. When describing with reference to the drawings, identical or corresponding components will be assigned the same reference numerals and duplicate descriptions thereof will be omitted.

Since various transformations can be made to these embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. The effects and features of the present embodiments and methods for achieving them will become clear by referring to the detailed description below along 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 not in a limiting sense but for the purpose of distinguishing one component from another component.

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

In the following embodiments, terms such as include or have mean the presence of features or components described in the specification, and do not exclude in advance the possibility of adding one or more other features or components.

In the following embodiments, when a part of a unit, area, component, etc. is said to be on or on another part, it is not only the case where it is directly on top of the other part, but also when other units, areas, components, etc. are interposed between them. Also includes cases.

In the following embodiments, terms such as connect or combine do not necessarily mean a direct and/or fixed connection or combination of two members, unless the context clearly indicates otherwise, and do not mean that another member is interposed between the two members. It's not exclusion.

This means that the features or components described in the specification exist, and does not preclude the possibility of adding one or more other features or components.

In the drawings, the sizes of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, so the following embodiments are not necessarily limited to what is 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 simplified block diagram for explaining the components of a welding system according to an embodiment of the present invention. Figure 3 is a perspective view of a welding information providing device according to an embodiment of the present invention. Figure 4 is a cross-sectional view taken along line II' of Figure 3. Figure 5 is a perspective view showing the rear of the 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. Figure 7 is a diagram showing the cover holder portion in an open state according to an embodiment of the present invention. Figure 8 is a perspective view showing a cover holder portion and a lens portion according to an embodiment of the present invention. Figure 9 is a view showing the cover holder part in an open state in Figure 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 are connected to each other through a communication network and can transmit and receive data. The welding information providing device 100 and the welding torch 200 may operate in one-to-one matching, but are not limited to this, and various modifications, such as operating in one-to-many correspondence, are possible.

In other words, n welding torches 200 can be connected to one welding information providing device 100, and one welding torch 200 can 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 device 100 according to an embodiment of the present invention can provide information about welding situations to the user. Specifically, the welding information providing device 100 may acquire a welding image using at least one camera mounted on the welding information providing device 100.

Based on this, a composite image can be created and displayed to the user. The welding information providing device 100 according to an embodiment of the present invention can generate a composite image using HDR (High Dynamic Range) technology, and display and provide a high-definition composite image to the user.

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

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

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

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

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

The welding information providing device 100 according to an embodiment of the present invention can synthesize images by repeatedly shooting with different shutter speed, ISO sensitivity, and gain values of each camera. The welding information providing device 100 according to an embodiment of the present invention can improve image quality by performing contrast processing on a composite image.

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

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

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

The welding information providing device 100 of the present invention can support the 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 slope, welding speed, and distance between the base material and the welding torch 200 for real-time welding work. It can be detected through a sensor.

The welding torch 200 can monitor the state of the torch and change the torch work setting value depending on the welding situation.

The welding information providing device 100 of the present invention is capable of receiving information about work settings and work status 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, when the welding information providing device 100 receives sensing information about a welding temperature value, it can 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 on the display unit or display of the welding information providing device 100, or may be auditory feedback through a sound (eg, a guidance alarm) or a guidance voice.

Meanwhile, sensing information about the temperature value may include information about whether the temperature value exceeds a preset temperature range. Additionally, the sensing information about 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 device 100 according to an embodiment of the present invention determines that the temperature values of the torch and the welding surface are outside the preset temperature range, it may guide the user to stop work.

In the case of welding outside the preset temperature range, there is a risk of quality deterioration, so the user can be guided to adjust the temperature value of the torch.

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

As an optional embodiment, the welding information providing device 100 may provide work stoppage guidance through visual feedback by repeatedly increasing and decreasing the saturation of a specific color (for example, red) on the entire display screen.

According to one embodiment of the present invention, the welding information providing device 100 can 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 the welding situation including the light level related to real-time welding work, welding temperature, welding direction, welding slope, welding speed, and the distance between the base material and the welding torch 200 through at least one sensor. there is.

Likewise, the welding information providing device 100 according to an embodiment of the present invention may provide guidance corresponding to the welding information based on the welding information detected through a sensor included in the welding information providing device 100. .

According to one embodiment of the present invention, the welding information providing device 100 controls the operation of the welding torch 200 by sensing the movement of a preset user or the voice of a preset user after guidance on the location during work is provided. You can change it.

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

Specifically, the welding information providing device 100 may acquire temperature values of the torch and the welding surface based on image data acquired through a thermal imaging camera.

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

Referring to FIGS. 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.

The welding information providing device 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.

Referring to FIGS. 5 to 8, 9, and 10, the main body 101 according to an embodiment of the present invention is intended to protect the face of a user performing welding work, and can 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 any material that is resistant to elements such as sparks that may occur during welding work can be used in a variety of ways.

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

Referring to FIGS. 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 change 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, and sparks generated during welding work, It can protect the user 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 acquires a welding image frame for the welding operation. can do.

The camera unit 110 according to an embodiment of the present invention is specifically mounted on the outside of the main body 101 and may include at least one camera that acquires 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 the settings of shutter speed, ISO sensitivity, and gain in response to the control command to photograph the welding work phenomenon. You can.

The camera unit 110 according to an embodiment of the present invention may be located on the front part of the main body 101 corresponding to the user's field of view. The camera unit 110 may include one camera to acquire welding image frames for welding operations, 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 shooting from a position other than the front part of the main 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 the outer cover unit 160.

Referring to FIG. 4, the 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 the function of connecting the outer cover unit 160 to the main body 101. As a result, 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 in FIG. 4) of the light blocking cartridge 163 and can protect the light blocking cartridge 163. The outer cover plate 162 may include a material that allows light to pass through, 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 acrylic, and may be molded by injection molding.

Referring to FIG. 4, the light-shielding 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 can increase the light blocking degree of the cartridge based on welding light information detected through the sensor unit 150, specifically the photo sensor.

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

The blackening degree of the light-shielding cartridge 163 according to an embodiment of the present invention can be automatically adjusted according to the brightness of the welding light. As described above, in the case where the brightness of the welding light is automatically adjusted, the sensor unit 150 can be used.

The sensor unit 150 according to an embodiment of the present invention acquires welding light information by detecting the intensity of the welding light, and converts the information about the intensity of the welding light included in the welding light information into a predetermined electrical signal, When transmitted to the processor 140, which will be described later, the processor 140 can control the degree of blackening based on the intensity of the welding light.

That is, the light-shielding cartridge 163 can change the light-shielding degree of the panel in real time to correspond to the intensity of light generated at the welding surface at the welding work site, and the camera unit 110 is a light-shielding cartridge 163 installed on the front side. It is possible to capture welding images in which a certain amount of welding light is shielded.

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

Referring to FIGS. 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 device 100 may obtain a temperature image by combining a thermal image obtained through a thermal imaging camera with an image of the 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 can irradiate a light source toward the welding work area.

The lighting unit may include a plurality of LED modules, and the output level of the light source irradiated through the lighting unit may be adjusted by control of 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.

Referring to FIGS. 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 the welding image obtained from the camera unit 110 as is, or may provide a high-definition composite image including welding information.

The display unit 120 according to an embodiment of the present invention allows a user performing welding work to visually check the surrounding environment (for example, the shape of a previously worked weld bead, etc.) other than the area adjacent to the welding light. It is possible to display high-definition composite images.

Additionally, the display unit 120 may provide the user with visual feedback on the welding progress status (eg, welding progress direction).

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

Referring to FIGS. 4, 5, and 7, the display unit 120 according to an embodiment of the present invention is disposed inside the main body 101, but not at a position that provides a welding image directly to the user's field of view, but at the back. It may be placed in a position where a welding image can be provided indirectly by the path change unit 130, which will be described.

Referring to FIG. 4, the display unit 120 according to an embodiment of the present invention may be positioned so that the direction in which it provides 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 change unit 130.

Referring to FIG. 4, the display unit 120 according to an embodiment of the present invention may be arranged to face the path change unit 130. As a result, the welding image generated in the display unit 120 may be transmitted to the user's eyes through the path change unit 130.

Referring to FIGS. 4, 6, 7, 9, and 10, the path change unit 130 according to an embodiment of the present invention is installed in the main body 101, and the main body 101 is viewed by the user. It can be installed on the inside of .

The path change unit 130 according to an embodiment of the present invention may be placed facing the display unit 120, and performs the function of changing the welding image provided from the display unit 120 and guiding the user's eyes. can do.

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

Referring to FIG. 4, the path change unit 130 according to an embodiment of the present invention includes a first mirror 131 that changes the path of the welding image provided from the display unit 120 (P1->P2), It may include a second mirror 132 that changes the path of the welding image that changes from the first mirror 131 (P2->P3) and guides it to the user's eyes.

Referring to FIG. 4, the path of the welding image is changed using two mirrors, but it is not limited to this, and the path of the welding image can be changed by further including three or more mirrors or a member that can change the path. Of course, modifications 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 the welding image, for example, poly methyl methacrylate (PMMA), poly methyl methacrylate (PC) carbonate), polyester, Ag (silver), or 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.

Likewise, 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 arranged in an axisymmetric relationship with respect to the center line passing through the path change unit 130, but the present invention is not limited thereto.

Referring to FIG. 4, the 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 is inverted again by the second mirror 132 to be displayed to 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 upper and lower images reversed, so the welding image provided by the display unit 120 is provided by the camera unit 110. ) may be an image in which the top and bottom and left and right of the image acquired through is reversed.

As an optional embodiment, if the path change unit 130 includes more mirrors, the processor 140 may redirect the image obtained 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 distance of the field of view. If the display unit 120 is placed in front of the user, the size of the welding information providing device 100 must be increased to secure this distance.

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

The distance of the path along which the 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 approximately 500 mm to 700 mm between the field of view and the site. When the distance of the welding image path provided from the display unit 120 exceeds 700 mm, the user may work There may be a sense of incongruity between the environment and the image.

Accordingly, the path of the welding image changed through the path change unit 130 can be determined in a range of 700 mm or less. In other words, the combined distance of the P1 path, P2 path, and P3 path in FIG. 4 may be 200 mm or more and 700 mm or less.

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

The inner cover unit 170 according to an embodiment of the present invention has the effect of preventing foreign substances from penetrating into the space formed by the path change unit 130, camera unit 110, and display unit 120. 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 can generate a high-quality composite image by synthesizing welding image frames received through the camera unit 110. The processor 140 allows the camera unit 110 to set different shooting conditions for each frame and obtain a composite image by synthesizing frames acquired in time order in parallel.

Specifically, 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.

At this time, the processor 140 may set different shooting conditions depending on 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 so that the ISO sensitivity and gain decrease as the welding light and/or ambient light at the welding site increases.

Additionally, when the movement and/or work speed of the welding torch 200 is detected to be fast, shooting conditions can be set to increase the shutter speed.

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

If there are two or more cameras in the camera unit 110, the processor 140 according to an embodiment of the present invention may control the shooting by setting different shooting setting conditions for each camera. Even in this case, the processor 140 can synthesize images of a preset number of frames in parallel.

The processor 140 according to an embodiment of the present invention can control the overall operation of the welding information providing device 100 using various programs stored in 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 set of instructions for system booting is stored, and the CPU copies the operating system stored in the memory of the welding information providing device 100 to RAM according to the instructions stored in the ROM and runs the O/S to run the system. Boot it.

Once booting is complete, the CPU can copy various applications stored in memory to RAM and execute them to perform various operations. Although the processor 140 is described above as including only one CPU, it may be implemented with multiple CPUs (or DSP, SoC, 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. You can.

However, it is not limited to this, and is not limited to 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) or an ARM processor, or may be defined by that term.

Additionally, the processor 140 may be implemented as a System on Chip (SoC) with a built-in processing algorithm, large scale integration (LSI), or may be implemented in the form of 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. The operation of the welding information providing device 100 can be controlled by transmitting and receiving signals.

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 detect various information about the welding site and obtain welding information.

At this time, the welding information may include welding temperature for real-time welding work, welding direction, welding slope, welding speed, and the distance between the base material and the welding torch 200. Moreover, the sensor unit 150 may include an optical sensor module configured to detect the level of light within at least the welding work area.

According to one 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 the welding site.

The sensor unit 150 according to an embodiment of the present invention includes various types such as proximity sensors, noise sensors, video sensors, ultrasonic sensors, and RF sensors in addition to illuminance sensors. It may further include sensors and detect various changes related to the welding work environment.

Referring to FIG. 4, the camera unit 110 according to an embodiment of the present invention may be placed at a position where a virtual extension line extending from the optical axis AX1 of the camera passes the path change 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 change 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 the virtual plane passing through the center of the second mirror 132. It can be located within.

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

As a result, it is possible to obtain an image that is the same as the user's eye level.

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

As described above, it can be located within a range of ±30 mm in the vertical direction based on the virtual plane passing through the center of the second mirror 132.

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. The space can be opened and closed.

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. It can be included.

Referring to FIG. 4, the cover frame portion 171 according to an embodiment of the present invention is installed in the main body 101, and the central portion may be open. Referring to FIGS. 4 and 7 , the cover frame portion 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 portion 171 according to an embodiment of the present invention may be formed of a material having a predetermined rigidity.

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

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

Referring to FIGS. 4, 6, and 9, the inner cover plate 174 according to an embodiment of the present invention covers the central portion of the cover frame portion 171, so that the user can It is possible to prevent foreign substances such as dust from entering the internal 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 internal space of the main body 101 located on one side (right side in FIG. 4) of the inner cover unit 170 facing the user and the other side (left side in FIG. 4) is the display unit 120. , may be formed by the path change 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 the welding image frame for the welding operation acquired by the camera unit 110 as an electrical signal. , welding images generated through these welding image frames can be provided.

The image provided from 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 along 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 change 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 matter such as dust flows into the internal space of the main body 101 where the path change unit 130 and the display unit 120 according to an embodiment of the present invention are disposed, the foreign matter is removed. It may be in contact with or attached to the path change unit 130 including the first mirror 131 and the second mirror 132.

This may interfere with the user's field of view when viewing the welding image provided from the display unit 120 and delivered to the user through the path change unit 130, and welding work may not be performed efficiently due to this sense of disparity. .

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

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

Referring to FIGS. 7, 9, and 10, the cover frame portion 171 according to an embodiment of the present invention may be connected to the main body 101 along the circumference of the open central portion, and the cover frame portion 171 ), a locking portion 172 may be formed to protrude in one direction (lower direction based on FIG. 9).

Referring to FIGS. 9 and 10, the catching portion 172 may be formed of the same material as the cover frame portion 171, and is formed on the cover holder portion 175, specifically the grip portion 176, which will be described later. The locking portion 172 may be inserted into the seating portion 176a.

Referring to Figures 9 and 10, a plurality of locking parts 172 according to an embodiment of the present invention are provided and may be formed to protrude on one side (lower side in Figure 9) of the cover frame part 171. Since the catching portion 172 is inserted into the seating portion 176a formed on the cover holder portion 175, the cover holder portion 175 covers the cover frame portion 171 and has the effect of being stably positioned. .

Referring to FIGS. 9 and 10, the locking portion 172 according to an embodiment of the present invention has one surface facing the direction in which the cover holder portion 175, specifically the gripping portion 176, approaches, is formed as an inclined surface. You 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 locking portion 172 protruding from the cover frame portion 171 is formed to be relatively higher in the direction toward the camera unit 110 (from right to left based on FIG. 9). means that

As a result, when the cover holder part 175 rotates clockwise (based on 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 move stably while contacting one surface (lower surface of FIG. 9 ) of the engaging portion 172 that is formed at an angle.

In addition, since the other surface (seat surface in FIG. 9) of the locking part 172 is placed on the inside of the seating part 176a formed in the holding part 176, the cover holder part 175 is stably held by the cover frame part 171. ) and has the effect of being position-fixed.

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

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

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

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

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

As a result, it is possible to prevent foreign substances such as dust from moving into the space formed between the cover frame portion 171 and the inner cover plate 174.

In addition, as the sealing portion 179S and the inner cover plate 174 are in close contact with each other, the inner space of the main body 101 is viewed from the outside, specifically 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 the space where the path through which the welding image provided at 120 is transmitted through the path change unit 130 is formed.

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

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

This has the effect of blocking the welding image from flowing into the internal space of the main body 101, where a transmission path is formed to transmit the welding image to the user through the path change unit 130.

Referring to Figures 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 made of a transparent material. As a result, the user can secure a view of the welding image provided from the display unit 120 and transmitted through the path change unit 130.

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

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

While the cover holder part 175 is connected to the inner cover plate 174, it is hinged clockwise (based on FIG. 9) about the rotation center C and can cover the cover frame part 171. In this case, the inner cover The plate 174 is disposed between the sealing part 179S and the cover holder part 175 extending along the circumference, and both sides are in close contact with the sealing part 179S and the cover holder part 175, respectively, and can be fixed in position. there is.

As a result, it is possible to block foreign substances such as dust from penetrating into the internal 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, and the cover holder part 175 is spaced apart from the inner cover plate 174 and is placed in the groove part 173 formed in the cover frame part 171. The inner cover plate 174 can be removed from the arranged sealing portion 179S and placed again after cleaning or replacement.

Referring to Figures 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 has an inner cover plate ( 174) can be covered.

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

Specifically, when the cover holder part 175 rotates clockwise based on the rotation center C, it can cover the cover frame part 171 and the inner cover plate 174 connected to the cover frame part 171. .

On the contrary, when the cover holder part 175 rotates counterclockwise based on the rotation center C, it is separated from the cover frame part 171 and the inner cover plate 174 connected to the cover frame part 171, The inner cover plate 174 can be removed from the cover frame portion 171.

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

Referring to FIGS. 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 with various refractive degrees can be installed on the cover holder unit 175 according to the visual acuity 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 portion 175 according to an embodiment of the present invention has one end along the circumference, and a lens portion 179L installed on the cover holder portion 175. The lens fixing portion 177 may be formed to protrude and extend outward so as to be in contact with the lens.

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 on the cover holder unit 175. There is an effect of fixing the position of the lens unit 179L by contacting a plurality of points formed.

Referring to FIG. 8, one end of the lens fixing part 177 according to an embodiment of the present invention may be formed with a curved surface 178 that can be contacted with the lens part 179L disposed on the cover holder part 175.

Because of this, when placing the lens unit 179L on the cover holder unit 175 as shown in Figure 8, it can be installed by sliding in a preset direction and contacts the curved surface 178 formed on the lens fixing unit 177. In this state, the lens unit 179L can be easily installed in a preset position.

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

As a result, the plurality of lens fixing parts 177 contact and press a plurality of points that are symmetrical to each other about the center on the lens part 179L disposed on the cover holder part 175, and the lens part 179L is held in the cover holder part ( 175) It can be stably positioned on the table.

Referring to FIGS. 6 to 10, the other end opposite to one end of the cover holder portion 175 rotatably connected to the cover frame portion 171 according to an embodiment of the present invention has a grip portion 176. A protrusion may be formed.

The holding 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 171 is pressed and covered, it is possible to contact one side (lower side in FIG. 6) of the cover frame 171.

Referring to Figures 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 in the gripping 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 to this, and the engaging portion 172 protrudes outward from one side (lower side in FIG. 9) of the cover frame portion 171. Within the technical concept of being inserted and draped, various modifications are possible, such as being formed in the shape of a groove with a predetermined depth.

Referring to FIGS. 6 and 9, the gripping portion 176 according to an embodiment of the present invention rotates clockwise about the cover holder portion 175 with respect to the center of rotation (C), thereby rotating the cover frame portion 171. ) can be contacted with the locking portion 172 formed in the

Specifically, the gripping part 176 is movable along one surface (lower surface in FIG. 9) formed inclinedly on the catching part 172, and the seating part 176a formed on the gripping part 176 is the cover frame part 171. As the cover holder part 175 touches and presses the cover frame part 171 and the inner cover plate 174 installed on the cover frame part 171, the cover holder part 175 can be fixed in position as it hangs over the locking part 172 formed in . There is an effect.

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

By blocking foreign substances such as dust from entering the space, the route change unit 130, etc., is prevented from being contaminated by foreign substances, and the display unit 120 is prevented from being contaminated by foreign substances, such as on the route change unit 130. It is possible to prevent the view of the welding image provided from and delivered to the user through the path change unit 130 from being disturbed.

Referring to FIGS. 6, 9, and 10, the cover holder portion 175 is formed on a plurality of surfaces on the cover frame portion 171 due to the grip portion 176 according to an embodiment of the present invention (based on FIG. 6). It can cover the right side and the lower side) and has the effect of stably covering the cover frame portion 171 and the inner cover plate 174 installed on the cover frame portion 171.

Referring to Figures 3 and 4, the head fixing part 180 according to an embodiment of the present invention is disposed on the back of the main body 101 and can be connected to the main body 101. The user can place the head fixing part 180 in contact with the user's head, and as a result, 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 (not specified) that can adjust the length of the inner circumference of the head fixing unit 180 according to the size of the user's head.

The user holds the adjustment 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 adjusted to the user's head. Ensure that it is positioned stably from the outside.

Referring to Figures 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 can be rotatably connected to the main body 101, and the user can rotate the main body 101 while fixing the head fixing part 180 on the user's head. It has the effect of securing a view of the environment.

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

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 the user performing the welding work. An element comprising a soft material such as a fiber material or a cushioning material may be disposed on at least some areas of the inner surface in contact.

Referring to FIG. 2, the communication unit 190 according to an embodiment of the present invention is configured to receive welding information from the welding torch 200 and transmit commands for controlling the welding torch 200.

According to one embodiment of the present invention, the communication unit 190 can transmit the composite image to an external device other than the welding torch 200. At this time, the external device may include various devices including a communication module, such as a worker/third party's smartphone or computer.

The communication unit 190 according to an embodiment of the present invention may be configured to communicate 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, when using a Wi-Fi chip or a Bluetooth chip, various connection information such as SSID and session key are first transmitted and received, and various information can be transmitted and received after establishing a communication connection using this.

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

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

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 can transmit and receive data with the welding information providing device 100. The communication unit includes modules capable of short-range wireless communication (e.g., Bluetooth, Wifi, Wifi-Direct) or long-range wireless communication (3G, High-Speed Downlink Packet Access (HSDPA), or Long Term Evolution (LTE)). can do.

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

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

The sensor unit detects at least one of various changes such as a change in the posture of the user holding the welding torch 200, a change in the illuminance of the welding surface, and a change in acceleration of the welding torch 200, and sends the corresponding electrical signal to the second processor. It can be passed on. That is, the sensor unit can detect a change in state based on the welding torch 200, generate a detection signal accordingly, 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 user settings), power is supplied to at least one preset sensor according to control to detect a change in the state of the welding torch 200. can do.

In this case, the sensor unit may be configured to include at least one device among all types of sensing devices that can detect changes in the state of the welding torch 200. For example, the sensor unit 150 includes 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, etc. may be configured to include at least one sensor among various sensing devices. The light level within the welding work area detected through the illuminance sensor of the welding torch 200 may be transmitted to the processor through the communication unit, and the processor may communicate with the welding torch 200 without passing through the sensor unit of the welding information providing device 100. The lighting unit (not shown) and/or the camera unit 110, specifically the camera, can be controlled based on the level of light transmitted through the illuminance sensor.

Meanwhile, the acceleration sensor is a component for detecting the movement of the welding torch 200. Specifically, the acceleration sensor can measure dynamic forces such as acceleration, vibration, and impact of the welding torch 200, and thus can measure the movement of the welding torch 200.

A gravity sensor is a component that detects the direction of gravity. That is, the detection result of the gravity sensor can be used together with the acceleration sensor to determine the movement of the welding torch 200. Additionally, the direction in which the welding torch 200 is held can be determined through the gravity sensor.

In addition to the above-described types of sensors, the welding torch 200 may further include various types of sensors such as gyroscope sensors, geomagnetic sensors, ultrasonic sensors, and RF sensors, and can 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 in the main body 101 and is installed in the inner 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, it is possible to block foreign substances such as dust from entering the space formed by the display unit 120 and the path change unit 130.

In addition, the cover holder portion 175 may be rotatably connected clockwise or counterclockwise with the area connected to the cover frame portion 171 as the center of rotation (C), thereby allowing the cover frame portion 171 to rotate. This has the effect of allowing the installed inner cover plate 174 to remain in close contact with the cover frame portion 171 and be stably positioned.

In addition, the sealing part 179S is seated in the groove 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 portions 171 can be closed, and there is an effect of preventing foreign substances such as dust from entering 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, making it easy to replace.

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

Additionally, the lens unit 179L may be disposed on the cover holder part 175 so as to be in contact with the lens fixing part 177 formed on the cover holder part 175, and may be released from contact with the lens fixing part 177. Since the lens unit 179L can be removed from the cover holder unit 175 in a certain way, it is easy to replace the lens unit 179L with a lens unit 179L that has a different refractive index depending on the user's eyesight.

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

Figure 11 is a perspective view showing 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 change 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).

The 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 change unit 130 includes a single mirror. Since the composition, operating principle, and effects are the same as those, detailed descriptions will be omitted to the extent of overlap.

The main body 101 is intended to protect the user's face and may be provided so that the user can wear it. The main body 101 can be fixed to the user's head through the head fixing part 180 provided on the inside of the main body 101.

The camera unit 110 is mounted on the outside of the main body 101 and may include at least one camera that acquires welding image frames for welding operations. The camera unit 110 may receive a control command from the processor 140 and change settings of shutter speed, ISO sensitivity, and gain in response to the control command to photograph the welding work phenomenon.

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

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

In other words, the camera unit 110 can be placed on the front part of the main body 101 so that it is located at a height similar to the user's field of view, thereby obtaining an image that is the same as 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-shielding cartridge can block the welding light generated when welding occurs. That is, the light-shielding cartridge may increase the light-shielding degree of the cartridge based on welding light information detected through a sensor unit, for example, a photo sensor.

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

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

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

The display unit 120 may be positioned so that the direction in which it provides the 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 is located near the user's forehead and may provide a welding image toward the path change unit 130 located below.

Since the welding image provided from the display unit 120 is reflected through one mirror and inverted, the processor 140 changes the direction of the image acquired from the camera unit 110 to correspond to this 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 made of a mirror that reflects a welding image.

Referring to FIG. 12, the path change unit 130 according to another embodiment of the present invention may include one mirror and changes the path of the welding image provided from the display unit 120 (A → B). It can be guided directly to 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 up of any one of the following. The path change unit 130 is inclined at an angle of 45° to 50° with respect to the path of the welding image, and can vertically change the path of the welding image.

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

In addition, the user can work at a distance of approximately 500 mm to 700 mm between the field of view and the site. When the distance of the welding image path provided from the display unit 120 exceeds 700 mm, the user may work There may be a sense of incongruity between the environment and the image. Accordingly, the path of the welding image changed through the path change unit 130 can be determined in a range of 700 mm or less.

In other words, the combined distance of the P1 path, P2 path, and P3 path in FIG. 4 may be 200 mm or more and 700 mm or less.

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

Referring to Figure 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 part 179S, and a lens part 179L, which are similar to the inner cover unit 170 provided in the welding information providing device 100 according to an embodiment of the present invention, and the configuration and operating principle Since the and effects are the same, detailed description will be omitted to the extent of overlap.

As described above, the welding information providing device according to embodiments of the present invention changes the path of the welding image through a path change unit and provides it to the user, thereby providing a clear welding image and making it possible to configure the main body to be compact in size. there is.

In addition, the welding information providing device according to embodiments of the present invention obtains images through a camera unit placed at a height similar to the user's field of view, thereby providing welding images to the user by minimizing the sense of heterogeneity or incongruity with the actual work site. can do.

In addition, the welding information providing device according to embodiments of the present invention prevents foreign substances from penetrating from the outside into the internal space of the main body formed by the display unit and the path changing unit due to the inner cover unit being disposed between the user and the path changing unit. This has the effect of allowing the user to clearly receive the welding image provided from the display unit.

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

10: Welding system 100, 100`: Welding information provision device
101: main 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: catching part 173: groove part
174: inner cover plate 175: cover holder part
176: gripping portion 176a: seating portion
177: Lens fixing part 178: Curved surface
179S: Sealing part 179L: Lens part
180: Head fixing unit 190: Communication unit
200: welding torch

Claims (10)

A main body that can be worn by a user;
a camera unit mounted on the main body and including at least one camera for acquiring welding image frames for welding operations;
a display unit disposed inside the main body and providing a welding image generated through the welding image frame;
a path change unit that changes the path of the welding image provided from the display unit and guides it to the user's eyes; and
An inner cover unit disposed on the path of the welding image and opening and closing the space formed by the display unit and the path change unit,
The inner cover unit is,
A cover frame portion installed on the main body and having an open central portion; and
Includes an inner cover plate that covers the central portion and is connected to the cover frame portion,
The inner cover unit includes a cover holder part that has an open area overlapping the central part of the cover frame part, is connected to the inner cover plate, and has a lens part covering the opened area that can be inserted and placed along a preset path. Further comprising: a welding information provision device. According to paragraph 1,
The inner cover unit is disposed between the path change unit and the user's eyes. delete delete According to paragraph 1,
The lens unit is disposed to face the inner cover plate. According to paragraph 1,
The inner cover unit further includes a sealing portion disposed between the cover frame portion and the inner cover plate, and on both sides contacting the cover frame portion and the inner cover plate, respectively. According to clause 6,
Welding information providing device, wherein the sealing portion is formed of a material capable of elastic deformation. According to paragraph 1,
The path change unit includes a mirror that guides the user's eyes to the path of the welding image provided from the display unit. According to paragraph 1,
A welding information providing device further comprising a processor that controls the display unit to display the welding image generated based on the welding image frame. According to paragraph 1,
A virtual extension line extending from the optical axis of the camera passes through the path change unit.

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