An imaging device for real-time monitoring of a molten bath state

Abstract

The utility model discloses an imaging equipment of molten pool state real -time monitoring belongs to the welding imaging technical field. It includes: welding torch, is equipped with support, L type board, is perpendicular to the direction horizontal sliding of welding seam and is arranged in support, L type board rotatory installation has connecting plate, and the gravity board rotatory installation has two guide rods that are side by side to the welding seam direction and are arranged in the gravity board away from L type board one end, and the guide rod vertical setting and bottom rotatory installation have the guide wheel of inserting the welding seam, camera, install in L type board, display, with the communication connection of camera. When welding torch swings and welds, support can move along the direction perpendicular to the welding seam with L type board and camera, and the camera is limited under the guide wheel, and cannot swing movement along with welding torch, but only can move along the welding seam with welding torch, thereby making the camera not swing along with welding torch, and the video presented by display can not shake frequently, thereby can be convenient for welding operator observation and evaluation video in the molten pool state of welding site.

Description

Technical Field

[0001] This utility model relates to the field of welding imaging technology, and in particular to an imaging device for real-time monitoring of the state of the molten pool. Background Technology

[0002] The camera in the welding imaging equipment captures images of the area near the welding torch during the welding process and transmits them clearly to a remote monitor via a signal cable. By observing the state of the molten pool at the welding point in the video, the welding operator can adjust welding parameters such as current, monitor the welding condition in real time, and evaluate the welding process. The camera is mounted on the welding torch via a bracket, allowing it to move with the torch.

[0003] Welding techniques can include straight-line welding and oscillating welding. Straight-line welding refers to welding where the welding torch moves along the weld seam without oscillating. Oscillating welding, on the other hand, involves oscillating the welding torch perpendicular to the weld seam. This allows the molten metal inside the weld seam to rapidly separate and cool, improving weld quality to some extent while maintaining a certain level of welding speed and current, and preventing defects such as weld cracking and porosity.

[0004] When the welding torch is used for oscillating welding, the camera will oscillate with the frequent oscillation of the welding torch, causing the video on the monitor to appear as a frequently shaking image. This makes it difficult for the welding operator to observe or evaluate the state of the molten pool at the welding site in the video. Utility Model Content

[0005] The purpose of this invention is to provide an imaging device for real-time monitoring of the state of a molten pool, so as to solve one or more technical problems existing in the prior art, or at least provide a beneficial option or create conditions.

[0006] The technical solution adopted to solve the above-mentioned technical problems is as follows: an imaging device for real-time monitoring of the molten pool state, comprising: a welding torch, mounted on a bracket; an L-shaped plate, horizontally slidably disposed on the bracket perpendicular to the weld direction, a connecting plate rotatably mounted on the L-shaped plate, a gravity plate rotatably mounted on the end of the connecting plate away from the L-shaped plate, the gravity plate being horizontally arranged, and at least two guide rods arranged side by side along the weld direction on the gravity plate, the guide rods being vertically arranged and having guide wheels rotatably mounted at their bottom ends for insertion into the weld, the axis of the guide wheels being horizontally arranged and perpendicular to the weld direction, and the outer peripheral edge of the guide wheels being chamfered; a camera, mounted on the L-shaped plate; and a display, communicatively connected to the camera, the display being used to display the camera's captured content in real time.

[0007] The technical solution has at least the following beneficial effects: when the welding torch swings along the direction perpendicular to the weld seam, the bracket can move relative to the L-shaped plate and the camera in the direction perpendicular to the weld seam. Under the restriction of the guide wheel, the camera cannot swing with the welding torch, but can only move along the weld seam with the welding torch. This prevents the camera from swinging with the welding torch and the video displayed on the monitor from shaking frequently, thus making it easier for welding operators to observe and evaluate the state of the molten pool at the welding site in the video.

[0008] As a further improvement to the above technical solution, the gravity plate has a first through hole for the guide rod to pass through vertically, and the guide rod is threadedly connected to two first nuts located above and below the gravity plate, respectively, and the two first nuts together clamp the gravity plate.

[0009] As a further improvement to the above technical solution, the first through hole is an elongated hole with its length direction perpendicular to the weld direction.

[0010] As a further improvement to the above technical solution, the bracket includes a crossbar, a first connecting rod, and a second connecting rod. One end of the crossbar is mounted on the welding gun, and the other end is connected to one end of the first connecting rod. The other end of the first connecting rod is connected to one end of the second connecting rod, and the other end of the second connecting rod is slidably connected to the L-shaped plate.

[0011] As a further improvement to the above technical solution, at least two slide rods are installed side by side along the length direction of the second connecting rod of the L-shaped plate. The length direction of the slide rods is horizontal and perpendicular to the weld direction. Each of the two slide rods passes through the second connecting rod and is threaded with a limit nut.

[0012] As a further improvement to the above technical solution, the L-shaped plate is provided with a second through hole for the slide rod to pass through, and the slide rod is threaded with a second nut on both sides of the L-shaped plate, and the two second nuts together clamp the L-shaped plate.

[0013] As a further improvement to the above technical solution, the second through hole is an elongated hole with its length direction perpendicular to the direction of the second connecting rod.

[0014] As a further improvement to the above technical solution, the crossbar is provided with an annular sleeve fitted on the welding gun, and a first screw is threaded onto the annular sleeve, with the tail end of the first screw pressing against the welding gun.

[0015] As a further improvement to the above technical solution, the first connecting rod is provided with a second screw threadedly connected to the crossbar, and the head of the second screw abuts against the side of the first connecting rod away from the crossbar.

[0016] As a further improvement to the above technical solution, the first connecting rod is provided with a third screw threadedly connected to the second connecting rod, and the head of the third screw abuts against the side of the first connecting rod away from the second connecting rod. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram showing the connection between the welding torch and the camera in an embodiment of this utility model; Figure 3 This is a schematic diagram showing the connection between the camera, bracket, and L-shaped plate in an embodiment of this utility model; Figure 4 This is a schematic diagram showing the connection between the camera, the L-shaped plate, and the gravity plate in an embodiment of this utility model.

[0018] 100. Welding torch; 200. Support; 210. Crossbar; 211. Ring sleeve; 212. First screw; 220. First connecting rod; 221. Second screw; 222. Third screw; 230. Second connecting rod; 240. L-shaped plate; 241. Sliding rod; 242. Limiting nut; 243. Second through hole; 244. Second nut; 300. Connecting plate; 400. Gravity plate; 410. First through hole; 420. First nut; 500. Guide rod; 510. Guide wheel; 600. Camera; 700. Display. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figure 1-4 An imaging device for real-time monitoring of the molten pool includes a welding torch 100, a support 200, an L-shaped plate 240, a connecting plate 300, a gravity plate 400, a guide rod 500, a camera 600, and a display 700. The welding torch 100 is equipped with a multi-degree-of-freedom controlled robotic arm, enabling the torch to perform oscillating welding operations. The display 700 is communicatively connected to the camera 600, allowing the display to show the video content captured by the camera 600 in real time for observation by the welding operator.

[0024] The support 200 includes a crossbar 210, a first connecting rod 220, and a second connecting rod 230. The crossbar 210 is horizontally arranged and has an annular sleeve 211 at one end. The annular sleeve 211 is adapted to be mounted on the welding torch 100. A first screw 212 passes through one side of the annular sleeve 211 and is threadedly connected to the annular sleeve 211. One end of the first screw 212 is screwed into the annular sleeve 211 and presses against the outer circumference of the welding torch 100, thereby stabilizing the relative position between the annular sleeve 211 and the welding torch 100. An eccentric handle is installed at the other end of the first screw 212 to facilitate the rotation of the first screw 212.

[0025] The end of the crossbar 210 away from the annular sleeve 211 is connected to one end of the first connecting rod 220. Specifically, a second screw 221 passes through one end of the first connecting rod 220. The second screw 221 is threadedly connected to the crossbar 210, and the axis of the second screw 221 coincides with the axis of the crossbar 210. The length direction of the first connecting rod 220 is perpendicular to the length direction of the crossbar 210. After the second screw 221 passes through the first connecting rod 220 and is screwed into the crossbar 210, the head of the second screw 221 abuts against the first connecting rod 220, thereby securing the first connecting rod 220 and the crossbar 210 and fixing the angular position of the first connecting rod 220 relative to the crossbar 210. When the second screw 221 is loosened, the swing angle of the first connecting rod 220 can be adjusted. In addition, an eccentric handle is provided at the head of the second screw 221 to facilitate the rotation operation of the second screw 221.

[0026] The end of the first connecting rod 220 furthest from the crossbar 210 is connected to the second connecting rod 230. Specifically, a third screw 222 passes through the end of the first connecting rod 220 furthest from the crossbar 210. The third screw 222 is threadedly connected to the second connecting rod 230, and the head of the third screw 222 abuts against the side of the first connecting rod 220 furthest from the second connecting rod 230, thereby securing the first connecting rod 220 and the second connecting rod 230 and fixing their relative angular positions. When the third screw 222 is loosened, the swing angle of the second connecting rod 230 relative to the first connecting rod 220 can be adjusted. In addition, the head of the third screw 222 is provided with an eccentric handle to facilitate the rotation operation of the third screw 222. In other embodiments, the second connecting rod 230 can also be directly fixed to the first connecting rod 220, the first connecting rod 220 can also be directly fixed to the crossbar 210, and the crossbar 210 can also be directly fixed to the welding torch 100.

[0027] The end of the second connecting rod 230 furthest from the first connecting rod 220 is slidably connected to the L-shaped plate. Specifically, the L-shaped plate 240 has two parallel second through holes 243, the parallel direction of which is the same as the length direction of the second connecting rod 230. Each of the two second through holes 243 is fitted with a sliding rod 241, which is horizontally arranged, and the length direction of the weld to be welded is perpendicular to the length direction of the sliding rod 241.

[0028] The second through hole 243 is an elongated hole, and its length direction is perpendicular to the length direction of the second connecting rod 230. The slide rod 241 can slide within the second through hole 243 along its length direction, or it can slide along its own length direction. A second nut 244 is threaded onto both sides of the slide rod 241 on the L-shaped plate 240. The two second nuts 244 together clamp the L-shaped plate, thus fixing the position of the slide rod 241 relative to the L-shaped plate. By loosening one of the second nuts 244, the position of the slide rod 241 in the second through hole 243 can be adjusted; by loosening both second nuts 244, the position of the slide rod 241 passing through the second through hole 243 can be adjusted.

[0029] In other embodiments, the second through hole 243 and the second nut 244 may be omitted, and the slide rod 241 may be directly welded to the L-shaped plate 240.

[0030] A limit nut 242 is threaded onto the end of the slide rod 241 away from the L-shaped plate 240. Both slide rods 241 are inserted through the end of the second connecting rod 230 away from the first connecting rod 220, and the second connecting rod 230 is positioned between the limit nut 242 and the L-shaped plate 240, so that the limit nut 242 plays a limiting role.

[0031] The camera 600 is mounted on the base plate of the L-shaped plate 240, allowing the camera 600 and the L-shaped plate 240 to slide horizontally relative to the second connecting rod 230 along the length direction perpendicular to the weld.

[0032] The base plate of the L-shaped plate 240 is rotatably connected to one side of the connecting plate 300 on the side closer to the welding torch 100, and the side of the connecting plate 300 away from the L-shaped plate 240 is rotatably connected to the gravity plate 400. The L-shaped plate 240 and the gravity plate 400 are parallel to the rotation axis of the connecting plate 300 and perpendicular to the length direction of the weld.

[0033] The gravity plate 400 has two first through holes 410, and the parallel direction of the two first through holes 410 is the same as the length direction of the weld. The first through hole 410 is an elongated hole, and the length direction of the first through hole 410 is perpendicular to the length direction of the weld. A guide rod 500 is vertically inserted through each of the two first through holes 410. The top of the guide rod 500 is threaded with two first nuts 420, which are positioned above and below the gravity plate 400, respectively, so that the two first nuts 420 can jointly clamp the gravity plate 400 to limit the relative position of the guide rod 500 and the gravity plate 400. By loosening one of the first nuts 420, the sliding position of the guide rod 500 in the first through hole 410 can be adjusted; by loosening both first nuts 420, the height position of the guide rod 500 relative to the gravity plate 400 can be adjusted.

[0034] Two guide rods 500 are arranged side by side along the weld direction. A guide wheel 510 is rotatably mounted on the bottom of each guide rod 500. The axis of rotation of the guide wheel 510 is horizontal and perpendicular to the length of the weld. The outer periphery of the guide wheel 510 has a chamfered structure. Both guide wheels 510 are partially embedded in the weld, providing support to keep the gravity plate 400 horizontal.

[0035] When the welding torch 100 oscillates along the direction perpendicular to the weld seam, the support 200 can move relative to the L-shaped plate 240 and the camera 600 in a direction perpendicular to the weld seam. Under the constraint of the guide wheel 510, the camera 600 cannot oscillate with the welding torch 100, but can only move along the weld seam with the welding torch 100. This prevents the camera 600 from oscillating with the welding torch, and the video displayed on the monitor 700 will not flicker frequently, making it easier for the welding operator to observe and evaluate the molten pool state at the welding site in the video. It should be noted that, in the final stage of welding, an auxiliary guide plate can be added to the end of the welding material. The auxiliary guide plate has a guide groove structure that is in the same direction as the weld seam and connected to the weld seam. The guide groove structure can guide the guide wheel 510, allowing the camera 600 to maintain a stable state even at the end.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An imaging apparatus for real-time monitoring of molten bath conditions, characterized by, include: Welding torch, equipped with a bracket; An L-shaped plate is horizontally slidably mounted on the bracket perpendicular to the weld direction. A connecting plate is rotatably mounted on the L-shaped plate. A gravity plate is rotatably mounted on the end of the connecting plate away from the L-shaped plate. The gravity plate is horizontally arranged. At least two guide rods are arranged side by side on the gravity plate along the weld direction. The guide rods are vertically arranged and have guide wheels inserted into the weld rotatably mounted at their bottom ends. The axis of the guide wheels is horizontal and perpendicular to the weld direction. The outer peripheral edge of the guide wheels is chamfered. The camera is mounted on the L-shaped plate; A display, communicatively connected to the camera, is used to display the camera's video content in real time.

2. The imaging device for real-time monitoring of the state of the molten bath according to claim 1, characterized in that: The gravity plate has a first through hole for the guide rod to pass through vertically. The guide rod is threaded with two first nuts located above and below the gravity plate, respectively. The two first nuts together clamp the gravity plate.

3. The imaging device for real-time monitoring of the state of the molten bath according to claim 2, characterized in that: The first through hole is an elongated hole whose length direction is perpendicular to the weld direction.

4. The imaging device for real-time monitoring of molten bath state according to claim 1, characterized in that: The support includes a crossbar, a first connecting rod, and a second connecting rod. One end of the crossbar is mounted on the welding gun, and the other end is connected to one end of the first connecting rod. The other end of the first connecting rod is connected to one end of the second connecting rod, and the other end of the second connecting rod is slidably connected to the L-shaped plate.

5. The imaging device for real-time monitoring of the state of the molten bath according to claim 4, characterized in that: At least two slide rods are installed side by side along the length of the second connecting rod on the L-shaped plate. The length of the slide rods is horizontal and perpendicular to the weld direction. Each slide rod passes through the second connecting rod and is threaded with a limit nut.

6. The imaging device for real-time monitoring of molten pool status according to claim 5, characterized in that: The L-shaped plate has a second through hole for the slide rod to pass through. The slide rod is threaded with a second nut on both sides of the L-shaped plate, and the two second nuts together clamp the L-shaped plate.

7. The imaging device for real-time monitoring of the state of the molten bath according to claim 6, characterized in that: The second through hole is an elongated hole whose length direction is perpendicular to the direction of the second connecting rod.

8. The imaging device for real-time monitoring of molten bath state according to claim 4, characterized in that: The crossbar is provided with an annular sleeve fitted on the welding gun, and a first screw is threaded onto the annular sleeve, with the tail end of the first screw pressing against the welding gun.

9. The imaging device for real-time monitoring of molten bath state according to claim 4, characterized in that: The first connecting rod is threaded with a second screw that is connected to the crossbar, and the head of the second screw abuts against the side of the first connecting rod away from the crossbar.

10. The imaging device for real-time monitoring of molten bath state according to claim 4, characterized in that: The first connecting rod is threaded with a third screw that is connected to the second connecting rod, and the head of the third screw abuts against the side of the first connecting rod away from the second connecting rod.

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