312 results about "Welding fume" patented technology

The invention discloses an automatic suction removal method, device and equipment for welding smoke and a medium, and relates to the technical field of machine learning. Linear interpolation and capacity expansion are conducted on a temperature matrix of a welding area; inputting the interpolated and expanded temperature matrix into a decision tree model, outputting predicted position information of the smoke source, and calculating spatial position coordinates; converting the point cloud data of the welding area into a grey-scale map, fusing the grey-scale map and the interpolated and expanded temperature matrix data to obtain a temperature space distribution matrix, inputting the temperature space distribution matrix into a first convolutional neural network, and outputting obstacle avoidance point cloud data; calculating parameters of the obstacle avoidance area, inputting the parameters, the spatial position coordinates and the initial joint rotation angle of the actuator into a second convolutional neural network, and outputting a target joint rotation angle; therefore, the welding smoke in the welding area can be automatically sucked by the actuator, the sucking efficiency is improved, the smoke concentration in the welding working area is reduced, the conflict condition of the smoke sucking disc working area is avoided, and the interference to the welding work and the sucking leakage rate are reduced.

The invention discloses a welding fume purifying and collecting device based on high negative pressure, and relates to the technical field of welding equipment.The welding fume purifying and collecting device comprises a main body structure and a welding machine body, one side of the welding machine body is fixedly connected with a shell, the top of the shell communicates with a negative pressure pipe, and the bottom of the shell communicates with a dust hopper; a dust hopper is arranged in the shell, one side of the dust hopper is communicated with a collecting pipe, a mounting plate is arranged in an inner cavity of the shell, a mounting hole is formed in the top of the mounting plate, a hoop is clamped in an inner cavity of the mounting hole, and a filter bag is fixedly connected to an inner cavity of the hoop; through the automatic dust removal function of the self-cleaning assembly, when the performance is affected by dust accumulated in the filter bag, the device automatically starts the cleaning process, manual intervention is not needed, the maintenance time and the labor cost are greatly saved, the continuity of welding operation is guaranteed, the situation that the construction period is prolonged due to maintenance is avoided, and the production cost of an enterprise is reduced.

The invention belongs to the technical field of welding, and particularly relates to new energy heavy truck battery protection welding equipment which comprises a welding part, a suction mechanism, a cooling mechanism, a flow guide mechanism and a filtering mechanism. The welding part comprises a mechanical arm and a welding gun arranged at the movable end of the mechanical arm; the suction mechanism comprises a mounting cylinder and an axial flow fan, and the axial flow fan is connected with the connecting arm through the mounting cylinder; the cooling mechanism comprises a flow guide ring and a storage box used for storing cooling liquid, the flow guide ring is fixedly mounted on the outer wall of the mounting cylinder, and the storage box is fixedly mounted on the outer wall of the mounting cylinder and communicates with an inner cavity of the flow guide ring; the flow guide mechanism comprises a mounting cylinder and a control plug, and the control plug slides in the mounting cylinder in a reciprocating manner, so that circularly flowing pulse water flow is generated in an inner cavity of the flow guide ring and the storage box; the filtering mechanism comprises a sealing ring and a smoke filtering plate; the sealing ring is arranged in the mounting cylinder in a sliding manner; through cooperation of the structure, the welding smoke treatment efficiency and stability of the equipment are remarkably improved.

The invention discloses an accessory welding device for water pump production, and particularly relates to the field of water pump welding, the accessory welding device comprises a working box, an equipment cavity is formed in the upper end of the working box, and a panel is fixedly mounted on the upper portion of the inner wall of the equipment cavity. According to the accessory welding device for water pump production, the dust suction assembly is arranged, welding fume and metal dust generated in the welding process can be captured in real time by arranging a plurality of circumferentially-distributed air suction funnels and an air pump, the welding fume enters a dust collection cavity through a first connecting pipe, and after the welding fume is filtered through a filter screen, the dust is collected; purified air is discharged through the air outlet pipe, so that pollution of welding fume to the working environment is effectively avoided, and the health of operators is protected; the discharging hole channel is periodically opened and closed through the dust collecting device, directional flowing of dust is achieved, meanwhile, the second scraper rotates on the conical block, the dust in the dust collecting cavity is scraped into the second collecting cavity and finally falls into the dust collecting box, dust accumulation is avoided, and long-term stable operation of equipment is guaranteed.

The invention discloses a rotating disc type multi-station magnetic head spot welding machine with a welding fume purification effect, and relates to the technical field of spot welding machines. A welding machine; the welding fume purification mechanism is used for collecting solid residues in welding fume, the gas box is fixedly connected to the outer surface of the welding fume purification mechanism, the welding fume purification mechanism is arranged, so that the welding fume generated during spot welding of the magnetic head can be purified, particulate matter and disintegrating residues generated during spot welding can be collected, and the welding fume purification efficiency is improved. In the subsequent discharging process, the collected particulate matter and disintegrating slag can be effectively discharged, and the particulate matter and disintegrating slag are prevented from leaking; the multi-station placing mechanism is used for placing a plurality of magnetic heads, and by arranging the multi-station placing mechanism, the plurality of magnetic heads needing spot welding can be placed at the same time, so that when spot welding work is conducted on the magnetic heads, the effect of continuous work can be achieved, and the effect of fully purifying welding fume generated by spot welding is achieved.

The invention discloses a rapid welding machine for an elevator car plate, and belongs to the technical field of elevator car plate machining and welding, the rapid welding machine comprises a base placed in a welding workshop, an annular sliding rail is mounted on the outer side of the base through a lifting adjusting structure, and welding mechanical arms are uniformly mounted on the annular sliding rail; an assembling driving motor is fixedly mounted on the inner side of a cavity of the base, a limiting groove is formed in the upper surface of the base, a sliding block is slidably arranged on the inner side of the limiting groove, the assembling driving motor and the sliding block are connected through a transmission assembly, and a rotating seat is rotatably mounted on the outer side of the sliding block. And a positioning assembly used for carrying out negative pressure adsorption positioning on the elevator car plate is arranged above the rotating seat. According to the rapid welding machine for the elevator car plates, the elevator car plates of different sizes can be rapidly positioned and assembled, so that the overall welding efficiency and precision are improved, and welding smoke can be effectively absorbed and treated in the long-distance welding process.

The invention belongs to the technical field of laser welding, and particularly relates to intelligent PCB welding equipment for a driving power supply, which comprises a workbench, a protective box body arranged on the upper side of the workbench, a laser welding assembly and a detection camera arranged on the upper side of the workbench, and the laser welding assembly comprises a processing machine body. The processing machine body is connected with a three-dimensional moving mechanism in the protective box body; a laser head is arranged at the bottom of the processing machine body; for soldering tin smoke generated by laser welding processing, the recovery fan equipment and the water mist supply system which are communicated with the absorption cavity are started, so that high-temperature welding smoke and purified water mist are mixed and enter the absorption cavity, and are filtered by the purification filter cloth when penetrating through the absorption cavity; and the flue gas flowing out of the absorption cavity is cooled and purified, so that the workload of subsequent purification treatment is reduced, and burning erosion to equipment such as contacted pipelines in the process that the flue gas flows to final purification equipment is also reduced.

The invention belongs to the technical field of steel structure welding, and particularly relates to a steel structure connecting point welding device which comprises a mounting base, the mounting base is arranged on one side of a bearing connecting piece, the bearing connecting piece abuts against the side wall of a steel structure column, and a mounting cover is mounted on the side wall of the side, away from the bearing connecting piece, of the mounting base. A control main board is arranged on one side of the mounting cover, the splash stopping block is arranged at a welding groove of the steel structure column and the bearing connecting piece, a guide pushing unit is mounted in the mounting cover, and the guide pushing unit can drive the splash stopping block to move along the welding groove of the steel structure column and the bearing connecting piece. The supporting connecting piece can be fixed to the steel structure column, welding is convenient, the welding strength can be prevented from being affected by welding spatter, meanwhile, welding smoke can be synchronously absorbed to assist in improving the welding quality, the air permeability of the welding position is rapidly detected, and the welding quality is judged.

The invention relates to the field of automatic welding machines, in particular to an automatic welding machine for an aluminum shell lithium battery, which comprises a supporting mechanism, a multidirectional moving platform, a welding gun arranged on the multidirectional moving platform, a mounting cover arranged on the outer side of the welding gun, a bearing groove arranged on the mounting cover, and a lifting ring arranged in the bearing groove, the telescopic spring is arranged on the lifting ring; the smoke and slag treatment component comprises a negative pressure assembly arranged in the mounting cover, a filtering assembly arranged on the negative pressure assembly, a cleaning assembly arranged in the mounting cover and a dismounting assembly arranged on the cleaning assembly; the anti-blocking part comprises a guide assembly arranged on the mounting cover; according to the device, welding smoke and welding slag treatment can be integrated, the filter screen can be cleaned when the welding slag is cleaned, the smoke treatment effect is guaranteed, meanwhile, the welding slag can be prevented from splashing to welding gaps, and the welding effect is prevented from being affected by dust in the welding gaps.

The invention provides a rapid dust removal system and method for engineering machinery welding, and the system comprises a rack, an air suction cover which is movably arranged on the rack and is used for capturing welding smoke dust; the dust removal purifier is arranged on the rack along with the suction hood and is used for purifying welding fume; the visual detection device comprises a camera and a visual calculation unit in communication connection with the camera, and the camera is arranged on the air suction cover and used for recognizing the welding point position in real time; the visual calculation unit is used for calculating the relative position of the welding point position and the suction hood and outputting a control signal; the servo driving mechanism is used for driving the dust removal purifier and the air suction cover to move along the rack, the servo driving mechanism is in communication connection with the visual inspection device, and the air suction cover is driven to move to the position over the welding point position according to the control signal; the dust removal efficiency can be improved, the energy consumption can be reduced, and the welding gun can be accurately tracked to collect smoke dust.

The invention discloses detecting and welding integrated robot flexible welding equipment and method, and relates to the field of robot welding. Detection and welding integrated robot flexible welding equipment comprises an operation base station, and further comprises positioning mechanisms which are symmetrically arranged and are rotationally arranged on the operation base station, and the mechanisms are used for positioning and splicing two pipes to be welded; by means of the integrated positioning, welding and detecting structure, the transfer links between equipment are reduced, the welding efficiency is improved, the real-time detection function of an industrial camera is achieved, welding defects can be found in time, the defective product rate is reduced, the purifying mechanism sucks and purifies welding smoke, the gas curtain wall is arranged, the working environment is effectively improved, and the welding quality is improved. Meanwhile, the gas curtain wall prevents the welding smoke from drifting to the position below the camera, the welding smoke is prevented from blocking a lens or being attached to the camera, the image definition is guaranteed, the detection accuracy is further improved, and the rework cost caused by misjudgment is reduced.

The invention discloses a building steel welding device for building construction, relates to the technical field of building construction welding equipment, and provides the following scheme that the building steel welding device comprises a machine body and a rotatable operation panel fixed to one side of the machine body, and further comprises a moving mechanism arranged in the machine body and used for conducting welding moving butt joint on building steel for building construction; and the rotating mechanism is arranged above the moving mechanism and used for adjusting the welding angle of the building steel for building construction. The device is high in adaptability, can be compatible with steel with different sizes of 0.5 m-15m and various section types, does not need to frequently replace clamps, is flexible in welding, can achieve multi-position welding through a six-degree-of-freedom mechanical arm, enables the fusion depth error to be smaller than or equal to + / -0.2 mm through laser tracking, achieves efficient operation, completes track input within 3 minutes through graphical programming, automatically completes multi-layer and multi-pass welding, improves the flaw detection passing rate, and is suitable for large-scale popularization and application. Safety and environmental protection are guaranteed, force feedback collision prevention is achieved, the smoke exhaust mechanism purifies welding smoke in a directional mode, and remote monitoring and data tracing are supported.

The invention relates to the technical field of power distribution cabinet welding, in particular to a power distribution cabinet body welding device which comprises a base station used for conveying power distribution cabinet bodies in sequence, and the base station is provided with a welding device body fixed through a side arm and used for welding supporting pieces to the inner walls of the power distribution cabinet bodies. The welding device comprises a sliding platform fixed to the side arm. Through active cooling and physical supporting of the cooling plate and the circulating cooling system of the cooling plate on the outer wall of the cabinet body during welding, welding heat input is absorbed and guided out, welding deformation of the thin-wall cabinet body is restrained, and the appearance precision of the cabinet body, the mounting position accuracy of a supporting piece and the welding precision are guaranteed; by means of cooperation of the dust suppression air inlet groove and the suction pump, effective collection of welding fume is achieved, and the dual functions of dust removal, environmental protection and enhanced heat dissipation are synchronously achieved through filtering purification and directional air injection towards the liquid outlet pipe; and the production efficiency and the product consistency of the power distribution cabinet are improved.

The invention relates to the technical field of vehicle chassis welding, and provides an automatic turnover device for tank type new energy vehicle chassis welding machining, which comprises two parallel supporting seats, mounting grooves are formed in the two supporting seats, and first air cylinders are fixedly connected to the inner sides of the two mounting grooves; the output ends of the two first air cylinders are both fixedly connected with movable seats, one ends of the two movable seats are both rotationally connected with connecting shafts, a turnover frame is fixedly connected between the two connecting shafts, a first motor is fixedly installed on the outer side of one movable seat, and a locking mechanism used for limiting rotation of the connecting shafts is arranged on the other movable seat. A positioning mechanism is arranged on one side of the overturning frame, and a dust suction mechanism used for sucking welding fume is arranged in the middle of the overturning frame. By means of the integrated dust collection mechanism, welding fume is sucked in real time in the welding process, poisonous gas is prevented from drifting into air, and therefore air pollution is remarkably reduced.

The utility model discloses an efficient dust suction device of a movable welding fume purifier, relates to the technical field of welding fume treatment, and aims to solve the problems that the stability is easy to reduce under long-time bending operation in the current limiting mode, and the position of a dust suction port is deviated due to the fact that vibration is easy to generate in the fume suction process of the device, so that the dust suction efficiency is improved. The dust collection device comprises a dust collection device body composed of a dust collection barrel and a dust collection pipe, a lifting frame is fixedly arranged at the top of the dust collection barrel, a folding frame is installed at the top of the lifting frame, and a connecting hanging piece capable of being connected with the dust collection pipe is fixedly arranged at the side end of the folding frame. Through the design of the lifting frame, the folding frame and the connecting hanging piece, the connecting hanging piece can be connected with a lantern ring on the pipe wall of the dust collection pipe, the connecting hanging piece can be adjusted to the position higher than the dust collection pipe under the height adjusting effect of the lifting frame, and the dust collection pipe supporting device has the advantages that auxiliary supporting is achieved, and the position stability of the dust collection pipe can be improved.

The utility model discloses a novel wall-mounted welding fume filtering device, relates to the technical field of filtering devices, and aims to solve the technical problems that the current wall-mounted filtering device is inconvenient to clean and maintain and is easy to block to influence the filtering quality, the novel wall-mounted welding fume filtering device comprises a frame body and a rotary drum, and the rear end of the frame body is provided with an assembly frame and a built-in piece; a fan is arranged at the upper end of the frame body, a bottom cylinder is arranged at the lower end of the frame body, a filter cylinder is installed in the bottom cylinder, the rotating cylinder is rotatably installed on the inner side of the frame body through a bearing, a built-in cylinder is installed in the rotating cylinder, side grooves are formed in the lower end of the outer side of the built-in cylinder in an annular array mode, and a connecting pipe is arranged at the front end of the rotating cylinder in a penetrating mode; and a dust suction pipe is mounted at the outer end of the connecting pipe. The filter cartridge cleaning device has the advantages that the filter cartridge cleaning function is convenient, the cleaning difficulty is reduced, and the filtering quality is ensured.

The utility model discloses a novel table type welding smoke dust collector, relates to the technical field of smoke dust collectors, and aims to solve the technical problems that a current multi-joint flexible metal pipe is abraded after being repeatedly bent, adjusted and used, so that the positioning stability and accuracy are reduced, and an air suction hood cannot be accurately aligned to the position where smoke dust is generated. Comprising a dust collection device body installed on a welding table, fixing frames are further installed on the two sides of the top of the welding table, a sliding piece is movably installed between the fixing frames on the two sides, an adjusting block is movably installed on the outer wall of the sliding piece, and an adjusting piece is movably installed on one side of the adjusting block; the position of the dust collection cover can be fixed through the cooperation of the fixing frame, the sliding piece, the adjusting block and the adjusting piece, the dust collection cover can move front and back through the cooperation of the fixing frame and the sliding piece, and the dust collection cover position adjusting device has the advantages that the dust collection cover position adjusting operation is convenient, the position fixing accuracy is high, and the stability is high.

The utility model relates to the technical field of welding fume treatment, and discloses a polishing device for producing a single valve bonnet, which comprises a shell, a T-shaped rotating rod is slidably connected to the right side in the shell, a rotating T-shaped block is fixedly connected to the top of the T-shaped rotating rod, a bolt strip is connected to the front side of the rotating T-shaped block in a clamping manner, and the bolt strip is fixedly connected to the top of the T-shaped rotating rod. A fixing disc is fixedly connected to the left side of the T-shaped rotating rod, a plurality of concave fixing blocks are slidably connected to the left side of the fixing disc, and bolts are in threaded connection with the interiors of the concave fixing blocks. According to the polishing device, the bidirectional threaded rod is manually rotated, the limiting plate and the lead screw are in contact limiting through threaded transmission, the motor is started to drive the lead screw to rotate at a high speed, the lead screw is in threaded connection with the movable plate, and the movable plate linearly slides under the constraint of the limiting groove, so that the polishing device is driven to move to adjust the position, and the adaptability of the polishing device is improved.

The utility model discloses self-cleaning type welding fume dust removal equipment, which relates to the technical field of welding fume dust removal equipment and comprises a dust removal box, a servo motor is fixedly connected to the upper end of the dust removal box, a rotating column is fixedly connected to the output end of the servo motor, and one end, far away from the servo motor, of the rotating column penetrates through the inner top wall of the dust removal box. The end, located in the dust removal box, of the rotating column is fixedly connected with a rotating disc, the side wall of the rotating disc is evenly and fixedly connected with three driving plates, the side wall of the dust removal box is fixedly connected with an installation base, the side wall of the installation base is provided with a second installation groove, and the inner wall of the second installation groove is fixedly connected with a first spring. Therefore, welding slag and welding dust on the side wall of the dust removal filter cartridge are automatically cleaned, the requirement for manual intervention is greatly reduced, the automation level of equipment is improved, workers do not need to frequently clean the dust removal filter cartridge, and the workload of the workers is reduced.

This invention discloses a welding positioning fixture for fire door frames, belonging to the technical field of fire door processing equipment. The fire door frame welding positioning fixture includes a vertical plate, an inner support mechanism, an outer push mechanism, a dust removal mechanism, a tray, and a second motor. The inner support mechanism uses a first top block and a second top block to press the inner sides of the two vertical frames together, with the first top block providing support at the internal corner where the horizontal and vertical frames connect. The outer push mechanism uses an outer push component that engages with the grooves in the vertical frames to push and position them from the outside. The dust removal mechanism uses a hollow pressure plate that can be inserted into the upper groove of the horizontal frame to press down on the horizontal frame and extract and filter welding fumes. The second motor drives the vertical plate to rotate relative to the tray, cooperating with the welding groove to allow continued welding on the other side of the door frame connection. This fixture can improve the welding clamping stability of the door frame, reduce the inward shrinkage deformation of the corners after welding, and improve the continuity of double-sided welding and the effect of welding fume treatment.

The invention relates to the technical field of dust removal, and discloses a workshop welding fume dust removal system which comprises a smoke inlet pipeline, a smoke suction channel, a first filter channel, a second filter channel, a third filter channel, a dehumidification channel, an air suction channel and an air outlet channel which are connected in sequence, welding fume with dust enters from the smoke inlet pipeline, and clean air is discharged from the air outlet channel. A smoke guide fan is arranged in the smoke suction channel and accelerates inflow of air in the smoke inlet pipeline, an air suction and exhaust fan is arranged in the air suction channel and accelerates exhaust of air in the air outlet channel, the device is provided with a plurality of filtering structures, smoke with dust is filtered thoroughly, a dehumidification structure is arranged, moisture in filtered gas is removed, water vapor in a workshop is reduced, and the environment is protected. The environment quality of a workshop is improved, production safety is guaranteed, the device can be hung on the upper portion of the workshop in a targeted mode, ground space waste and influence on normal operation of the workshop can be well avoided, and space resource waste can be avoided to the maximum extent.

The invention relates to the technical field of smoke dust filtering, in particular to a welding smoke dust collecting and filtering device for a welding workshop, and the welding smoke dust collecting and filtering device for the welding workshop comprises a purifier and a dust hood which are communicated with each other; the dust collection cover comprises a shell, the shell is of a cylindrical structure, and the bottom end of the shell is folded inwards to form an impurity storage space; a filtering part is inserted into the shell, the filtering part is of a bowl-shaped structure, a bowl opening faces the bottom end of the shell, the bottom end of the filtering part is inserted into the impurity storage space, and a gas flow path is formed between the filtering part and the shell; a plurality of filtering holes are formed in the side wall of the filtering part; a plurality of flow guide parts are arranged on the peripheral wall of the filtering part and are of a spiral structure. By arranging the impurity storage space and arranging the filtering part and the flow deflector which are matched with the impurity storage space, when welding fume is filtered, two flow paths are formed at the filtering holes and the gas flow path, it is guaranteed that solid impurities can be collected in the impurity storage space in a unified mode, the fume leakage phenomenon can be reduced, and meanwhile the filtering effect can be improved.

The invention belongs to the technical field of intelligent welding systems, particularly relates to a welding device for a water conservancy construction pipeline, and aims at solving the problems that in the using process of an existing welding device, smoke generated by welding is inconvenient to treat in time, the working environment is severe, removed welding slag is inconvenient to discharge, and the welding efficiency is high. In order to solve the problem that accumulated welding slag may interfere with stable operation and subsequent welding quality of the device, the invention provides the following scheme that the device comprises a shell, an annular seat and an air bellow, and the air bellow is fixedly mounted at the top of the shell. All working procedures can be driven to work collaboratively and continuously only through a single power source, the welding automation degree and efficiency are remarkably improved, meanwhile, the field problems of welding smoke pollution and unsmooth welding slag removal and discharge are thoroughly solved, and high-quality, cleaning and full-process automation of water conservancy construction pipeline welding are achieved.

The application discloses a large-scale positioner welding fume collecting cover and belongs to the technical field of fume collecting covers. The large-scale positioner welding fume collecting cover comprises a positioner unit, a controller, a welding unit, a gantry type supporting frame, a displacement trolley, a fume collecting unit and a dust removal host, the controller is internally provided with a position control module, the fume collecting unit comprises a square cover body fixedly embedded with a skeleton type frame, the inner side of the square cover body is formed with multiple compartments through a partition plate, the skeleton type frame is externally provided with a reducing pipe, and multiple fume collecting pipes are arranged on the reducing pipe in a spaced and communicated mode. The large-scale positioner welding fume collecting cover can control the state of a turning plate by adopting a reversing driver, can automatically construct a local dust collecting space according to needs, can collect idle dust removal suction forces at the same time of constructing the dust collecting space, and directly applies the dust removal suction forces to fixed-point strong dust collecting of a welding position. The large-scale positioner welding fume collecting cover can realize fixed-point dust collecting following and local area dust collecting following during the welding process, can guarantee fume collecting efficiency, and prevents welding fume from escaping.

The present application belongs to the technical field of submerged arc welding, and discloses a laboratory welding fume collecting method and a dust collecting cover. The specific collecting steps of the fume collecting method are as follows: designing the radius r of the horn opening of the dust collecting cover; installing the dust collecting cover; installing the dust collecting assembly; assembling the fume collecting device; welding to collect fume; and weighing the fume. The implementation process of the method is simple, the auxiliary structure is convenient to install, no high equipment investment and complex operation and maintenance are required, the operation cost is low, the welding fume can be efficiently collected without affecting the normal continuous production of the submerged arc welding, the method is suitable for collecting various submerged arc welding fumes under laboratory conditions, and has high cost performance and strong practicability.

This invention provides a laser welding copper nozzle, belonging to the technical field of laser welding components. The laser welding copper nozzle includes an installation assembly, a protective sleeve, an inner liner, a dust extraction pipe, and an air inlet connector. In this invention, one end of the dust extraction pipe passes sequentially through the protective sleeve and the inner liner and extends into the first connecting through hole, drawing dust near the opening at the bottom of the outer sleeve. This effectively removes welding fumes and heat, resulting in better performance. The second part of the inner liner forms a ring-shaped first air guiding channel with the inner wall of the protective sleeve. This first air guiding channel can deliver the protective gas supplied by the air inlet connector to the first connecting through hole, resulting in more uniform diffusion of the protective gas and a better oxygen-free welding environment.

This invention discloses an air intake device for a welding fume purifier, comprising a collection box. Two symmetrically arranged sealing bases are provided on one side wall of the collection box. A rotating base is located within each sealing base, and a collection pipe extends through the rotating base into the collection box. A fixing pipe is fixedly connected to the end of the collection pipe furthest from the collection box. An auxiliary mechanism for collecting welding fumes is provided on the side wall of the fixing pipe. This invention solves the problem of inconvenient height and direction adjustment during welding fume intake in welding fume purifiers. The invention incorporates a connecting ring, a filter pipe, a cylinder, a rotating gear, and a drive gear. By controlling the extension and retraction of the cylinder and the rotation of the motor via a control panel, the rotation and vertical movement of the collection pipe can be easily achieved, thus aligning the collection pipe with the welding position and facilitating the adjustment of the collection pipe's position during air intake.

This utility model relates to the field of laser welding technology and proposes an underwater welding laser head, including a stainless steel tube cover; a connecting plate fixedly connected to the inner wall of the stainless steel tube cover, one end of which is fixedly connected to the end of the laser welding head; a spray disc fixedly connected to the lower end of the inner wall of the stainless steel tube cover, with spray holes at equal angles at the bottom of the spray disc; a connecting pipe extending to the outside of the stainless steel tube cover fixedly connected to one side of the top of the spray disc, with the bottom end of the connecting pipe communicating with the interior of the spray disc; and a protective cover movably connected to the bottom of the stainless steel tube cover, with fixing components at the top of the protective cover and the bottom of the stainless steel tube cover. Through the spray disc, connecting pipe, and spray holes, an umbrella-shaped protective gas curtain can be sprayed out, ensuring that a small area below the end of the laser welding head is free of water, facilitating welding operations. At the same time, high-pressure gas blows away welding fumes, ensuring smooth welding.

The utility model provides a kind of welding device of visual positioning, it includes welding robot, welding robot has mechanical arm, and mechanical arm tip is provided with mounting head, and mounting head is installed with welding torch and visual positioning equipment, and mounting head is also fixedly connected with mounting plate, welding torch has the welding end of departing from mounting plate and the wiring end similar to mounting plate, and mounting plate is detachably connected with suction pipe, and suction pipe has the inlet end towards welding torch welding end side, and suction pipe other end passes through mounting plate setting, and suction pipe and visual positioning equipment are arranged in two sides of welding torch.This utility model solves the problem that the overall efficiency cannot be improved in the prior art to avoid the generation of a large amount of welding fume.

The utility model discloses a smoke exhaust device for underground pipeline internal welding construction, which comprises an induced draft fan arranged on the ground of an inlet of a manhole door of an underground pipeline, a spiral hose is connected to an air inlet of the induced draft fan, and the free end of the spiral hose extends into the underground pipeline through the manhole door. A plurality of pull rings and a fixing assembly connected with the inner side wall of the underground pipeline are fixed to the free end of the spiral hose. During use, a maintainer entering the underground pipeline to be maintained through the manhole door brings the spiral hose into the underground pipeline to a position near a welding construction part by means of the pull ring, then the spiral hose is placed at the upper end of a working point by means of the fixing assembly, and negative pressure is formed around a port of the free end of the spiral hose after the induced draft fan is started. At the moment, welding operation is carried out, electric welding smoke generated during operation can be sucked into the spiral hose through negative pressure and finally is sent out of the underground pipeline through the induced draft fan, then safe operation is achieved, and meanwhile reliable safety measures and technical guarantee are provided for emergency repair and maintenance of underground pipeline water leakage accidents.