CN114051083A - Observation device of welding pool - Google Patents
Observation device of welding pool Download PDFInfo
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- CN114051083A CN114051083A CN202111288931.2A CN202111288931A CN114051083A CN 114051083 A CN114051083 A CN 114051083A CN 202111288931 A CN202111288931 A CN 202111288931A CN 114051083 A CN114051083 A CN 114051083A
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- 238000003466 welding Methods 0.000 title claims abstract description 107
- 230000007246 mechanism Effects 0.000 claims abstract description 77
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 39
- 239000000112 cooling gas Substances 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 19
- 230000001681 protective effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
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- 238000003384 imaging method Methods 0.000 description 4
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- 230000033001 locomotion Effects 0.000 description 2
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- 230000004927 fusion Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/56—Accessories
- G03B17/561—Support related camera accessories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Studio Devices (AREA)
Abstract
The invention provides an observation device of a welding pool, relates to the technical field of welding, and aims to solve the technical problem that a welding observation camera in the prior art cannot be freely switched between a normal light state and a strong welding light state. The observation device comprises a camera mechanism, a light filtering component, a rotating mechanism and a camera cooling mechanism, wherein the camera mechanism is used for acquiring an observation image of the welding pool through the light filtering component; the filtering component is used for filtering welding arc light with specified wavelength in an observation image of the welding pool; the rotating mechanism is arranged on the camera shooting mechanism, connected with the filtering component and used for driving the filtering component to rotate through rotation so as to place the filtering component in front of the camera shooting mechanism; and the camera shooting cooling mechanism is arranged on the camera shooting mechanism, and takes away heat generated by the camera shooting mechanism through circulating airflow in the camera shooting cooling mechanism.
Description
Technical Field
The invention relates to the technical field of welding, in particular to an observation device of a welding pool.
Background
With the continuous progress of science and technology, welding technology has been developed rapidly, and the automatic welding technology of robot is applied to industrial production in large numbers now, and the welding process of fixed procedure is often adopted in the automatic welding production of traditional robot, is difficult to discover to welding defect problems such as welding beading, splash, gas pocket that produce in the welding process. Welding is completed when the problem of welding defects is usually found, and the automatic welding production efficiency is greatly reduced without timely feedback and loop adjustment.
When carrying out welding operation, use video acquisition equipment to install a pair of eyes for automatic weld robot, various situations when not only can the record welding can also make the regulation when the problem appears.
However, the applicant has found that the prior art has at least the following technical problems:
the existing welding observation camera is large in size and inconvenient to install on a welding gun, and once the camera cannot move along with the robot, the camera cannot be applied to a welding robot with a large motion range. In addition, the accessibility of the welding gun is affected due to the large size of the camera, and the operation cannot be carried out on the welding piece with narrow space.
In addition, because the arc intensity of the welding arc is extremely high, the photosensitive unit on the camera is extremely easy to oversaturate, and further a white image is presented at the position of the corresponding photosensitive element, so that a large area of exposure is caused near the welding arc, and the image information near the welding molten pool cannot be identified.
The current common camera can not be freely switched between the normal light state and the welding strong light scene. In general, a camera needs to be equipped with special optical lenses to achieve the observation requirement in order to clearly observe the change of the molten pool. This requires the camera to have the ability to freely switch lenses in both normal and welding scenarios.
Disclosure of Invention
In view of the above, the present invention provides an observation device for a weld pool, so as to solve the technical problem that a welding observation camera in the prior art cannot be freely switched between a normal light state and a strong welding light state.
In order to achieve the above object, the present invention provides an observation apparatus for a weld pool, comprising an image pickup mechanism, a filter assembly, a rotation mechanism, and an image pickup cooling mechanism, wherein: the camera shooting mechanism is used for acquiring an observation image of the welding pool through the light filtering component; the light filtering component is used for filtering welding arc light with specified wavelength in an observation image of the welding pool; the rotating mechanism is arranged on the camera shooting mechanism, connected with the filtering component and used for driving the filtering component to rotate through rotation so as to place the filtering component in front of the camera shooting mechanism; the camera shooting cooling mechanism is arranged on the camera shooting mechanism, and heat generated by the camera shooting mechanism is taken away by circulating airflow in the camera shooting cooling mechanism.
Preferably, the mechanism of making a video recording includes camera lens protective housing, installation shell, point awl camera lens and industry CMOS camera, the tip of keeping away from the point awl end on the point awl camera lens can be dismantled and set up in the installation shell, installation shell internally mounted has industry CMOS camera, point awl camera lens is located the front end of industry CMOS camera, the camera lens protective housing is both ends open-ended hollow structure and cover and is established the periphery of point awl camera lens just the camera lens protective housing with the connection can be dismantled to the installation shell, rotary mechanism can drive the optical filtering subassembly rotates to closing or opening keep away from on the camera lens protective housing the tip open-ended position of installation shell. Preferably, an embedding part is arranged on the mounting shell, the embedding part can be embedded into the end opening of the lens protective shell far away from the filtering component, and the embedding part is detachably connected with the lens protective shell through a bolt.
Preferably, the filtering component comprises a lens opening and closing cover, and white glass, a gray level dimming mirror and an infrared filter lens which are arranged on the lens opening and closing cover, the gray level dimming mirror is arranged in front of the infrared filter lens, the white glass is arranged in front of the gray level dimming mirror, and the lens opening and closing cover is connected with the rotating mechanism.
Preferably, the lens open-close cover comprises a first lens open-close cover body, a second lens open-close cover body and a third lens open-close cover body which are sequentially detachably connected, a first mounting groove for installing white glass is formed in the first lens open-close cover body, a second mounting groove for installing the gray level dimming mirror is formed in the second lens open-close cover body, a third mounting groove for installing the infrared filter is formed in the third lens open-close cover body, the third lens open-close cover body is connected with the rotating mechanism, and the first mounting groove, the second mounting groove and the third mounting groove are communicated.
Preferably, the camera shooting cooling mechanism comprises a cooling shell, a cavity for containing cooling gas is formed inside the cooling shell, the cooling shell is detachably mounted on the mounting shell, a cooling gas inlet and a cooling gas outlet are formed in the cooling shell, and the cooling gas inlet is connected with a gas source.
Preferably, rotary mechanism includes pneumatic push rod and mount pad, the mount pad is installed the cooling casing with on the lens protective housing, set up the permission in the mount pad the installation department that pneumatic push rod passed, pneumatic push rod can pass the installation department with filtering component is connected.
Preferably, the mount pad includes first installation pedestal and second installation pedestal, first installation pedestal is installed on the cooling housing, second installation pedestal is installed on the lens protective housing, the installation department is including seting up first installation pedestal's permission the first through-hole that pneumatic push rod passed with seting up on the second installation pedestal is permitted the second through-hole that pneumatic push rod passed, pneumatic push rod can pass first through-hole stretch into to in the second through-hole and can wear out the second through-hole with filtering component connects.
Preferably, the pneumatic push rod comprises a fixing portion and a movable portion arranged in the fixing portion, an internal thread is arranged in the second through hole, an external thread is arranged on a partial section of the fixing portion, the fixing portion penetrates through the first through hole and then extends into the second through hole and is in threaded connection with the second through hole, and the end portion of the second through hole extending out of the movable portion is connected with the filtering component.
Preferably, a connecting piece is fixed at the end part of the movable part extending out of the second through hole, and a matching part matched with the connecting piece is arranged on the filtering component; the matching part comprises a matching body and an intermediate connecting part, the light filtering component is fixedly connected with the matching body through the intermediate connecting part, the intermediate connecting part is movably connected with the second mounting base body, a movable long groove is formed in the matching body, and the matching body is movably connected with the connecting piece through a pin shaft arranged in the movable long groove.
According to the observation device for the welding pool, the strong welding light is filtered through the light filtering component, so that the normal imaging degree of a camera can be achieved, the light filtering component can be driven to rotate through the rotating mechanism in the strong welding light state, the light filtering component is arranged in front of the camera shooting mechanism, the strong light can be filtered to observe the welding pool, the phenomenon that the area near a welding arc is exposed due to supersaturation of a photosensitive element of a camera is avoided, and meanwhile, the picture quality of an image observed by the welding pool is improved; the filter component can be taken away through the rotating mechanism under normal light environment, namely the filter component does not need to be placed in front of the camera shooting mechanism under normal light environment. And the heat generated by the camera shooting mechanism can be taken away by circulating airflow in the camera shooting cooling mechanism, so that the normal work of the camera shooting mechanism in a high-temperature environment is ensured. The observation device disclosed by the invention is small in overall size, convenient to install at a position near a welding gun at the tail end of the welding robot, easy to radiate, free of occupying more welding robot load and good in practicability, and the accessibility influence on the welding gun is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a device for observing a weld puddle according to an embodiment of the present invention;
FIG. 2 is another schematic structural diagram of a device for observing a weld puddle according to an embodiment of the present invention;
FIG. 3 is an exploded view of a device for observing a weld puddle in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of the installation of the observation device for the weld puddle according to the embodiment of the present invention.
Reference numerals: 1. a camera mechanism; 11. a lens protection case; 12. mounting a shell; 121. an insertion section; 13. A pointed cone lens; 14. an industrial CMOS camera; 2. a filter assembly; 21. opening and closing the cover of the lens; 211. the first lens opens and closes the cover body; 212. the cover body is opened and closed by the second lens; 213. the third lens opens and closes the cover body; 22. white glass; 23. a grayscale dimming mirror; 24. an infrared filter; 3. a camera cooling mechanism; 31. cooling the housing; 32. A cooling gas inlet; 33. a cooling gas outlet; 4. a rotation mechanism; 41. a pneumatic push rod; 411. a fixed part; 412. a movable portion; 42. a first mounting seat; 421. a first through hole; 43. a second mounting seat; 431. a second through hole; 5. a connecting member; 6. a fitting portion; 61. matching the body; 62. an intermediate connecting portion; 7. a data line connector; 8. a three-way joint; 9. a welding gun; 10. an electromagnetic valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Just as background art, the current stage of welding observation camera is bulky and inconvenient to install on a welding gun, and once the camera cannot move along with the robot, the camera cannot be applied to a welding robot with a large movement range. In addition, the accessibility of the welding gun is affected due to the large size of the camera, and the operation cannot be carried out on the welding piece with narrow space. In addition, because the arc intensity of the welding arc is extremely high, the photosensitive unit on the camera is extremely easy to oversaturate, and further a white image is presented at the position of the corresponding photosensitive element, so that a large area of exposure is caused near the welding arc, and the image information near the welding molten pool cannot be identified. The current common camera can not be freely switched between the normal light state and the welding strong light scene.
Based on the above, referring to fig. 1 to 4, the invention provides a welding pool observation device which can be switched between a normal light state and a strong welding light state. The observation device comprises a camera 1, a filter component 2, a rotating mechanism 4 and a camera cooling mechanism 3, wherein the camera 1 is used for acquiring an observation image of the welding pool through the filter component 2, and a data line connector 7 is connected to the camera 1. The filtering component 2 is used for filtering welding arc light with specified wavelength in an observation image of the welding pool; the rotating mechanism 4 is arranged on the camera shooting mechanism 1, connected with the filtering component 2 and used for driving the filtering component 2 to rotate through rotation so as to place the filtering component 2 in front of the camera shooting mechanism 1; and the camera shooting cooling mechanism 3 is arranged on the camera shooting mechanism 1, and takes away heat generated by the camera shooting mechanism 1 through circulating airflow in the camera shooting cooling mechanism 3.
The welding pool is a liquid metal part with a certain shape formed on a weldment under the action of a welding gun 9 during fusion welding; the welding arc is a gas discharge phenomenon generated after the welding gun 9 is contacted with the welding wire and conducts electricity; since the spectral distribution of the welding arc is extremely broad and the intensity of the arc light is extremely high, the filter assembly 2 reduces the intensity of the light in the observation image by absorbing the welding arc light of a given wavelength.
Optionally, in the present invention, the camera mechanism 1 includes a lens protection shell 11, an installation shell 12, a pointed cone lens 13 and an industrial CMOS camera 14, an end portion of the pointed cone lens 13 far from a pointed cone end is detachably disposed in the installation shell 12, a front portion of the installation shell 12 is connected to the pointed cone lens 13 by a fine thread, the industrial CMOS camera 14 is installed inside the installation shell 12 in a bonding manner, the pointed cone lens 13 is located at a front end of the industrial CMOS camera 14, and the pointed cone lens 13 focuses on a molten pool, so as to facilitate lighting and imaging of the camera. The lens protection shell 11 is a hollow structure with openings at two ends, is sleeved on the periphery of the pointed cone lens 13, and is used for protecting the pointed cone lens 13. The front portion of the mounting shell 12 is provided with a mounting hole for connecting the lens protection shell 11, the lens protection shell 11 in this embodiment is detachably connected to the mounting shell 12, further, the mounting shell 12 is provided with an embedding portion 121, the embedding portion 121 can be embedded into an end opening of the lens protection shell 11 far away from the filtering component 2, and the embedding portion 121 and the lens protection shell 11 are detachably connected through a bolt. The rotating mechanism 4 can drive the optical filter assembly 2 to rotate to a position for closing or opening the end opening of the lens protection shell 11 far away from the mounting shell 12.
Optionally, in the present invention, the filtering component 2 includes a lens opening and closing cover 21, and a white glass 22, a gray level reducing mirror 23 and an infrared filter 24 which are disposed on the lens opening and closing cover 21, the gray level reducing mirror 23 is disposed in front of the infrared filter 24, the white glass 22 is disposed in front of the gray level reducing mirror 23 and is used for protecting the gray level reducing mirror 23 and the infrared filter 24 and preventing splash from damaging the lenses, and the gray level reducing mirror 23 and the infrared filter 24 filter welding hard light to reach a normal imaging degree of the camera.
In the embodiment, the combined filtering system of the infrared filter 24 and the gray level reducing mirror 23 with 50% of attenuation degree is adopted, so that strong light generated by TIG, MIG and other welding methods is effectively filtered, and the lighting imaging of the camera is assisted.
The lens opening and closing cover 21 is connected to the rotating mechanism 4. Specifically, the lens opening and closing cover 21 includes a first lens opening and closing cover body 211, a second lens opening and closing cover body 212 and a third lens opening and closing cover body 213 which are detachably connected in sequence, a first mounting groove for mounting the white glass 22 is formed in the first lens opening and closing cover body 211, a second mounting groove for mounting the gray-scale dimming mirror 23 is formed in the second lens opening and closing cover body 212, a third mounting groove for mounting the infrared filter 24 is formed in the third lens opening and closing cover body 213, the third lens opening and closing cover body 213 is connected with the rotating mechanism 4, and the first mounting groove, the second mounting groove and the third mounting groove are communicated.
Optionally, in the present invention, the camera cooling mechanism 3 includes a cooling housing 31, a cavity for accommodating cooling gas is formed inside the cooling housing 31, the cooling housing 31 is detachably mounted above the mounting housing 12 through bolts, a cooling gas inlet 32 and a cooling gas outlet 33 are formed on the cooling housing 31, a pneumatic quick connector is connected to the cooling gas inlet 32 and the cooling gas outlet 33, heat generated by the camera mechanism 1 can be taken away through circulating airflow inside the camera cooling mechanism 3, and normal operation of the camera mechanism 1 in a high temperature environment is ensured.
Optionally, in the present invention, the rotating mechanism 4 includes a pneumatic push rod 41 and a mounting seat, the mounting seat is mounted on the cooling housing 31 and the lens protection housing 11, a mounting portion allowing the pneumatic push rod 41 to pass through is formed in the mounting seat, and the pneumatic push rod 41 can pass through the mounting portion to be connected to the filtering assembly 2.
The mount in this embodiment includes a first mount 42 and a second mount 43, the first mount 42 is mounted on the cooling housing 31, the second mount 43 is mounted on the lens protection housing 11, the mount includes a first through hole 421 opened in the first mount 42 and allowing the air push rod 41 to pass through, and a second through hole 431 opened in the second mount 43 and allowing the air push rod 41 to pass through, and the air push rod 41 can pass through the first through hole 421 and extend into the second through hole 431 and can pass through the second through hole 431 to be connected to the filter assembly 2.
The pneumatic push rod 41 comprises a fixed part 411 and a movable part 412 arranged in the fixed part 411, an internal thread is arranged in the second through hole 431, an external thread is arranged on a partial section of the fixed part 411, the fixed part 411 penetrates through the first through hole 421 and then extends into the second through hole 431 and forms a threaded connection with the second through hole 431, and the end part of the movable part 412 extending out of the through hole 431 is connected with the filter assembly 2.
Specifically, a connecting piece 5 is fixed at the end of the movable part 412 extending out of the second through hole 431, and a matching part 6 matched with the connecting piece 5 is arranged on the filter assembly 2; the matching part 6 comprises a matching body 61 and an intermediate connecting part 62, the filter component 2 is fixedly connected with the matching body 61 through the intermediate connecting part 62, the intermediate connecting part 62 is movably connected with the second mounting seat 43, a movable long groove is formed in the matching body 61, and the matching body 61 and the connecting piece 5 are movably connected through a pin shaft arranged in the movable long groove.
The welding shielding gas is divided into two paths through a three-way joint 8, one path is communicated with a welding gun 9, and the other path is communicated with a pneumatic push rod 41. The electromagnetic valve 10 controls the opening and closing of the lens opening and closing cover 21, and the closed lens (namely, the filter component is placed in front of the camera mechanism 1) in the welding strong light environment can filter a strong light observation molten pool; the molten pool is observed under normal light conditions with the lens (meaning that the filter assembly is not placed in front of the camera mechanism 1). The airflow circulation of the camera shooting cooling mechanism 3 is provided by another air source, so that the camera can work normally in a high-temperature environment. The video signal output passes through the data line connector 7.
The working process of the observation device of the welding pool provided by the invention is as follows:
firstly, the observation device provided by the invention is fixed on the welding robot, the camera is within 200-300 mm of the linear distance from the welding spot, and meanwhile, the lens is ensured to be over against the position of the welding spot.
And secondly, connecting the data line joint 7 to external equipment, displaying the states of the molten pool in welding and non-welding environments, and checking the welding quality to realize molten pool detection.
And thirdly, the focal length of the lens is adjusted, the position below the top point of the welding wire can be observed clearly, the state of a molten pool can be observed better for the position of the molten pool during welding, and welding defects such as splashing and welding beading are recorded.
And fourthly, switching on the air source of the camera cooling mechanism 3 to lower the temperature of the molten pool observation camera mechanism 1 in the welding environment.
The robot controls the electromagnetic valve 10 to be communicated with the air path, the pneumatic push rod 41 extends out to push the filtering component 2 to be closed, strong light during welding is filtered, a control port of the electromagnetic valve 10 is connected into a welding robot control cabinet, the electromagnetic valve 10 is controlled through an IO communication port of the welding robot, and the opening and closing actions are combined with the welding process to realize automatic control.
And sixthly, starting welding and observing molten pool change.
Seventhly, after welding is finished, the electromagnetic valve 10 is disconnected, the lens is opened, and the molten pool after welding is observed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an observation device of weld bath, its characterized in that includes camera mechanism, optical filtering subassembly, rotary mechanism and camera cooling body, wherein:
the camera shooting mechanism is used for acquiring an observation image of the welding pool through the light filtering component;
the light filtering component is used for filtering welding arc light with specified wavelength in an observation image of the welding pool;
the rotating mechanism is arranged on the camera shooting mechanism, connected with the filtering component and used for driving the filtering component to rotate through rotation so as to place the filtering component in front of the camera shooting mechanism;
the camera shooting cooling mechanism is arranged on the camera shooting mechanism, and heat generated by the camera shooting mechanism is taken away by circulating airflow in the camera shooting cooling mechanism.
2. The observation device of the welding pool of claim 1, wherein the camera mechanism comprises a lens protection shell, a mounting shell, a conical lens and an industrial CMOS camera, the end part of the conical lens, which is far away from the conical end, is detachably arranged in the mounting shell, the industrial CMOS camera is installed in the mounting shell, the conical lens is located at the front end of the industrial CMOS camera, the lens protection shell is of a hollow structure with two open ends, is sleeved on the periphery of the conical lens, is detachably connected with the mounting shell, and the rotating mechanism can drive the filter assembly to rotate to a position of closing or opening the end opening of the lens protection shell, which is far away from the mounting shell.
3. The observation device of the welding pool of claim 2, wherein the mounting shell is provided with an embedding part, the embedding part can be embedded into an end opening of the lens protection shell far away from the filter assembly, and the embedding part and the lens protection shell form a detachable connection through a bolt.
4. The device for observing a welding pool according to claim 1, wherein the filter assembly comprises a lens open-close cover, and a white glass, a gray-scale dimming mirror and an infrared filter lens which are arranged on the lens open-close cover, the gray-scale dimming mirror is arranged in front of the infrared filter lens, the white glass is arranged in front of the gray-scale dimming mirror, and the lens open-close cover is connected with the rotating mechanism.
5. The observation device of the welding pool according to claim 4, wherein the lens opening and closing cover comprises a first lens opening and closing cover body, a second lens opening and closing cover body and a third lens opening and closing cover body which are detachably connected in sequence, a first mounting groove for mounting the white glass is formed in the first lens opening and closing cover body, a second mounting groove for mounting the gray level dimming mirror is formed in the second lens opening and closing cover body, a third mounting groove for mounting the infrared filter lens is formed in the third lens opening and closing cover body, the third lens opening and closing cover body is connected with the rotating mechanism, and the first mounting groove, the second mounting groove and the third mounting groove are communicated.
6. The observation device of the welding pool according to claim 2, wherein the camera cooling mechanism comprises a cooling housing, a cavity for containing cooling gas is formed inside the cooling housing, the cooling housing is detachably mounted on the mounting shell, a cooling gas inlet and a cooling gas outlet are arranged on the cooling housing, and the cooling gas inlet is connected with a gas source.
7. The device for observing the welding pool of claim 6, wherein the rotating mechanism comprises a pneumatic push rod and a mounting seat, the mounting seat is mounted on the cooling shell and the lens protection shell, a mounting part allowing the pneumatic push rod to pass through is formed in the mounting seat, and the pneumatic push rod can pass through the mounting part and be connected with the filtering component.
8. The device for observing a welding pool according to claim 7, wherein the mounting base comprises a first mounting base body and a second mounting base body, the first mounting base body is mounted on the cooling housing, the second mounting base body is mounted on the lens protection housing, the mounting portion comprises a first through hole which is formed in the first mounting base body and allows the pneumatic push rod to pass through and a second through hole which is formed in the second mounting base body and allows the pneumatic push rod to pass through, and the pneumatic push rod can pass through the first through hole, extend into the second through hole, and can pass through the second through hole to be connected with the optical filtering component.
9. The device for observing the welding pool of claim 8, wherein the pneumatic push rod comprises a fixed portion and a movable portion disposed in the fixed portion, an internal thread is disposed in the second through hole, an external thread is disposed on a partial section of the fixed portion, the fixed portion penetrates through the first through hole and then extends into the second through hole and is in threaded connection with the second through hole, and an end portion of the movable portion extending out of the second through hole is connected with the filtering component.
10. The device for observing the welding pool of claim 9, wherein a connecting member is fixed to an end portion of the movable portion extending out of the second through hole, and an engaging portion engaged with the connecting member is provided on the filter assembly;
the matching part comprises a matching body and an intermediate connecting part, the light filtering component is fixedly connected with the matching body through the intermediate connecting part, the intermediate connecting part is movably connected with the second mounting base body, a movable long groove is formed in the matching body, and the matching body is movably connected with the connecting piece through a pin shaft arranged in the movable long groove.
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| CN202111288931.2A CN114051083A (en) | 2021-11-02 | 2021-11-02 | Observation device of welding pool |
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| CN202111288931.2A CN114051083A (en) | 2021-11-02 | 2021-11-02 | Observation device of welding pool |
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