37 results about "Labor operations" patented technology

The utility model provides back gouging equipment for wooden comb production and processing, and relates to the technical field of wooden artware processing, the back gouging equipment comprises a rack, a back gouging module is arranged in the middle of the upper end of the rack, the back gouging module comprises a saw blade, and the saw blade is driven by a servo motor; inverted-L-shaped mounting plates are arranged on the two sides of the upper end of the rack, a discharging frame is arranged in the middle of the upper end of each mounting plate, and the saw blade is located in the middle of the upper end of each discharging frame; the mounting plate and the discharging frame are connected through an adjusting screw rod, a U-shaped groove is formed in the middle of the upper end of the mounting plate, and the adjusting screw rod is inserted into the middle of the inner side of the U-shaped groove in a penetrating mode and is limited and fixed through a nut. Workpieces to be machined are placed in the grooves in the discharging frame, workers are prevented from holding the workpieces with hands all the time, and therefore the operation labor intensity of the workers is relieved; in addition, when products are replaced for production, batch production can be carried out in sequence only by manually adjusting the position of the discharging frame, and the requirement for production diversity of the products is greatly met.

The invention discloses an automatic welding device and method suitable for saddle-shaped welds, which belongs to the technical field of saddle-shaped weld processing, and comprises a main pipe, a branch pipe, a positioner, a support assembly, a welding robot, a battery module and an overall control and simulation analysis system, wherein the main pipe is mounted on the positioner and the support assembly, the branch pipe is perpendicular to the outer surface of the main pipe, the cutting angles of the hole groove at the lower end of the branch pipe and the hole groove cut in the wall thickness direction of the main pipe are both 30°, and a gap is left between the two hole grooves, a welding gun, a contact sensor and a laser scanning device are arranged at the front end of the welding robot, and an arc voltage tracker for real-time monitoring of the welding voltage is arranged in the battery module, and through the invention, a working mode of continuous automatic welding can be achieved for pipes with different wall thicknesses, manual operation can be avoided, labor costs can be reduced, time and labor can be saved, welding difficulty can be reduced, welding efficiency can be improved, and safety risks can be reduced.

The invention provides a movable type flat plate automatic welding system. The movable type flat plate automatic welding system comprises a steel structure platform, at least one movable type welding rail combination device and a movable type wire feeding control system. The automatic gas metal arc welding device has the following beneficial effects that existing manual or semi-automatic welding can be replaced, a narrow field welding space of a large steel structure and automatic gas metal arc welding of a short welding seam are achieved, and the welding quality and efficiency of the welding seam are improved; the welding machine head and rail integration, lightweight and remote visual welding tracking design is adopted, the structure is compact, moving, mounting and positioning are portable, rapid and accurate, the welding operation auxiliary time is shortened, the labor operation environment and intensity of welders are improved and reduced, the field welding operation HSE level is improved, better operation and use performance is achieved, and the welding machine head is suitable for popularization and application. And the on-site welding operation quality and efficiency are further improved.

The invention relates to the technical field of industrial control, in particular to an intelligent production management process method for thick plate laser cutting in the steel processing industry. The intelligent control system automatically receives and decrypts encrypted production order information of the MES system, contour scanning and automatic verification are conducted on raw material steel plates through a 3D camera, then full-automatic typesetting is conducted based on an intelligent layout algorithm with the core of guaranteeing that finished products fall into the optimal physical and chemical performance interval of raw materials, and finally a cutting program is generated to drive equipment work. And the processing actual performance data is fed back in a closed-loop manner. The method effectively solves the problems that in traditional thick plate machining operation, the intelligent level is low, efficiency is low due to dependence on manual operation, cost is high, and quality consistency is difficult to guarantee. Seamless connection from order placing to completion and reporting is achieved, the production efficiency and the digital level are remarkably improved, feeding errors are effectively eradicated, the typesetting quality is optimized, and the labor cost and the error rate are reduced.

A system includes a base. A platform is coupled to the base. A staircase is coupled to the base and the platform. The staircase includes one or more steps leading up to the platform. A head support includes a front cross beam connected to a first arm and a second arm. The first arm and the second arm are pivotally coupled to the platform. The head support is selectively moveable between an upright position in which the front cross beam is above the platform, and a deployed position in which the front cross beam is forward from a front end of the platform.

The present disclosure relates to the technical field of electric power, and provides an electric power operation and maintenance supervision method and device, the method comprising: obtaining operation and maintenance work data related to operation and maintenance quality in electric power work through an RPA robot; analyzing the operation and maintenance work data according to preset supervision rules to obtain an analysis result, wherein the supervision rules comprise checking rules and calculation rules; and outputting the analysis result through the RPA robot. The present disclosure can realize all-round, full-process and full-automatic precise analysis of operation and maintenance quality based on RPA, realize intelligent management of operation and maintenance quality, reduce labor costs through office automation, reduce the burden of power grid grassroots staff, and improve the efficiency and accuracy of the supervision process; at the same time, errors in manual operation, such as data export errors and analysis and judgment errors, can be avoided, and the accuracy of operation and maintenance quality supervision is improved.

The application discloses a labor risk assessment system based on deep learning judgment, belongs to the technical field of artificial intelligence and labor risk assessment, constructs an end-to-end technical architecture of "multi-modal feature fusion-multi-task deep learning-double path fusion analysis", maps multi-source labor data to the same vector space through multi-modal feature fusion, realizes dynamic evolution of multi-dimensional risk assessment standards by combining multi-task machine learning and reinforcement update, constructs a pre-deployment and in-service double-path judgment mechanism, fuses the evaluation results of three dimensions of the deployment unit risk, the deployer personal risk and the post risk, outputs recruitment decision suggestions and company overall labor operation risk rating, not only realizes a fundamental leap of labor risk assessment from static rule statistics to dynamic intelligent decision, but also realizes a closed loop coverage of labor risk from "pre-entry" to "in-process monitoring", and provides accurate and differentiated decision support for enterprises at different stages.

The invention discloses a relay protection constant value verification method, device and equipment and a medium. The method comprises the following steps: acquiring constant value standard information and a constant value knowledge graph sent by a server; acquiring target constant value information and current operation information of the protection equipment in the connected state; verifying each second constant value item according to the constant value knowledge graph and each first constant value item to obtain a constant value item verification result; verifying each second fixed value group according to the fixed value item verification result and each first fixed value group to obtain a fixed value group verification result; determining a current fixed value group of the protection equipment in the second fixed value group according to the current operation information; and verifying the current fixed value group according to the application information of each first fixed value group to obtain an operation verification result. According to the embodiment of the invention, the automation degree of protection setting value verification can be improved, the efficiency of protection setting value verification is improved, and the manual operation cost and the human error probability are reduced.

The utility model relates to the technical field of operating tables, and discloses a telescopic movable auxiliary mounting table which comprises a bottom plate and a workbench, a telescopic mechanism is arranged at the upper end of the bottom plate, the workbench is located at the upper end of the telescopic mechanism, and the telescopic mechanism comprises a scissor stack rotationally connected to the upper end of the bottom plate. One side of the upper end of the bottom plate is fixedly connected with a limiting piece, one end of the scissor stack is located in the limiting piece in a sliding mode, the upper end of the bottom plate is rotationally connected with a top cylinder, and the top cylinder is rotationally connected with the scissor stack; according to the novel auxiliary mounting table applied to the telescopic movement, by arranging the telescopic mechanism and the auxiliary mechanism, the lifting and putting-down actions of a worker during skin pressing drive a scissor stack to stretch and contract through a top cylinder, then the working table is driven to move up and down, the worker can press the upper and lower positions of a seat conveniently, and then the skin pressing efficiency of the worker is improved; and moreover, the labor operation of workers is reduced, and the fatigue of the workers is reduced.

The utility model relates to an automatic fixed-length saw cutting device which comprises a feeding assembly, a saw cutting assembly, a material taking assembly and a fixed-length servo assembly. The fixed-length servo assembly is located on one side of the saw cutting assembly, the feeding assembly is installed in the saw cutting assembly, and the material taking assembly is installed on the fixed-length servo assembly. According to the utility model, a series of mechanisms and control elements are used for realizing automatic production only by one-time feeding; the original material length is not required, the time of material taking and recharging can be automatically judged, the manual operation cost and raw material waste caused by single-step length fixing are reduced, and the safety is high; the method is particularly suitable for long sealing strips, time cost and labor cost can be greatly saved, size errors are reduced, material waste is reduced, and safety risks are reduced.

The utility model discloses a wing-unfolding type container, which relates to the technical field of containers and comprises a shell, an upper plate is fixedly arranged in the shell, supports are symmetrically and fixedly arranged on the upper surface of the upper plate, rotating shafts are symmetrically and rotatably arranged on the upper sides of the supports, a servo motor is detachably arranged on one support, and the servo motor is detachably arranged on the other support. The wing unfolding type container is characterized in that a servo motor is arranged in the container body, the output end of the servo motor is fixedly connected with two driving chain wheels, the outer surfaces of the driving chain wheels are connected with chains in a meshed mode, driven chain wheels are connected with the interiors of the chains in a meshed mode, and the driven chain wheels are fixedly arranged on the corresponding rotating shafts in a sleeved mode. The wingspan plate can be automatically unfolded and closed accurately and efficiently in cooperation with a chain wheel and chain transmission mechanism, manual labor-consuming operation is not needed, the labor cost and the time cost are greatly saved, and the working efficiency can be remarkably improved especially in the logistics scene where goods are loaded and unloaded frequently.

The invention provides a rolling chuck device for an automatic feeding and discharging blade rolling mill, which is used for clamping a blade for the automatic feeding and discharging blade rolling mill, the blade is placed in a positioning block, a rear air nozzle of an air cylinder intakes air to push a piston rod of the air cylinder to extend forwards, and the air cylinder is positioned in the positioning block. A rear push block connected with the piston rod moves forwards, so that a front push block sliding seat pushes the blade tightly, the piston rod extends forwards continuously, an upper wedge surface of the rear push block pushes a roller upwards, a rotary pressing block presses the blade tightly, and a sensor confirms the position of an air cylinder and the clamping state of the blade and feeds back; after rolling of the blade is completed, the rear push block moves to drive the rotary pressing block to loosen the blade through the tension spring, and the front push block sliding seat is driven to move backwards through the step push rod along with continuous retreating of the movable air cylinder piston rod. The clamp has the advantages of being high in efficiency, accurate in positioning, stable in clamping, convenient to operate and high in universality. In production, operation of workers is omitted, and the production cost is reduced.

The application discloses a control method for preventing deviation of a rack in a finishing rolling process, which comprises the following steps: locking a rolling force deviation in a period after a head is rolled out at a fixed time as a stable rolling force deviation value, determining a real-time value of the rolling force deviation in a subsequent rolling process, calculating a difference value between the real-time value of the rolling force deviation and the stable rolling force deviation value until a flying shear cuts a tail, and automatically calculating a single-side roll gap leveling of a rolling mill according to a change of the difference value, so as to realize automatic leveling and deviation prevention in the finishing rolling process. The control method reduces manual intervention, reduces labor operation load, and improves stability and quality of the finishing rolling.

The present invention relates to the technical field of coal industry, and in particular to a moving device for a multi-category drill rig platform in roadway tunneling, comprising: a self-propelled trolley and a track mechanism; the track mechanism includes: several sections of track structures, and the several sections of track structures are respectively arranged on the upper surfaces of the cutting part, the guard plate part of the roadheader and the belt conveyor; wherein a regulating bracket is arranged below the track structure located at the cutting part of the roadheader, and the regulating bracket is used for regulating the inclination angle of the track structure; when the self-propelled trolley needs to pass, the several sections of the track structures can be in the same horizontal plane to form a track passage for the self-propelled trolley to travel. The present invention provides a moving device for a multi-category drill rig platform in roadway tunneling, which can realize the self-propelling function of the trolley and the carrying function of the multi-category drill rig platform through a driving mechanism, with a high degree of automation and avoiding high-intensity labor operations of workers.

The invention relates to the technical field of drainage pipe installation, in particular to a drainage pipe auxiliary fixing device with a positioning function. Comprising formworks, each formwork is composed of a plurality of mounting plates and a bottom plate, movable shafts are symmetrically arranged on the inner sides of the mounting plates and the inner sides of the bottom plates in a sliding mode, the movable shafts are used for mounting scissor type supporting rods, and the formworks can be assembled through the scissor type supporting rods. The drainage pipe is installed in a mechanical and automatic mode, the requirement for high-altitude punching and installation operation of workers is greatly reduced, the labor intensity of the workers is relieved, the working efficiency is improved, the risk of high-altitude operation is reduced, the construction safety is improved, and the construction period is shortened. And by means of the scissor type supporting rods, the multi-section telescopic plates and other assemblies, it is ensured that the formworks can be vertically aligned, so that a worker can conveniently position and fix the drainage pipe, errors possibly occurring in manual operation are avoided, and the installation accuracy of the drainage pipe is improved.

The utility model discloses circuit board surface mounting feeding equipment, which belongs to the technical field of circuit board feeding and comprises a feeding conveyor, two supporting blocks are respectively assembled on two sides of the upper end face of the feeding conveyor, a mounting plate is assembled on the upper end faces of the two supporting blocks on the same side, and guide rails are assembled on the upper end faces of the two mounting plates. And embedding blocks are slidably arranged in the two guide rails in an embedded mode, positioning plates are assembled on the upper end faces of the two embedding blocks, side positioning plates are assembled on one sides of the upper end faces of the two positioning plates, and a feeding adsorption assembly is assembled between the two side positioning plates. The circuit board surface mounting feeding equipment has the advantages that production efficiency is improved, labor intensity is reduced, a plurality of suction cups can suck the circuit board to be processed by controlling the vacuum pump, the feeding suction assembly can be driven to the feeding conveyor for feeding by controlling the driving motor, and the circuit board surface mounting feeding equipment is simple in structure and convenient to use. Therefore, the manual operation time is shortened, the production efficiency is improved, the physical labor of workers is reduced, and the labor intensity is reduced.

The invention provides a coal mine non-repeated advanced hydraulic support for continuous beam rail transportation, which comprises a walking device, a support transportation device and a gate-type support assembly, by arranging the walking device, the gate-type support is transferred on the walking device so as to conveniently reach a coal mine tunnel, and the supports are transported to a specified supporting place one by one by means of the support transportation device, so that the support is convenient to transport. The door-type support can be conveniently unfolded on a supporting operation face, so that in the actual operation process, movement of the walking device, placement of the door-type support on the walking device and movement of the door-type support on the walking device through the support conveying device can be controlled by equipment, and the operation efficiency is improved. The support moving efficiency of assembling, fixing and following the excavation progress of the portal support in a mining operation area is improved, the supporting efficiency is improved, the adaptability of the bottom plate is improved, the roadway is adapted, the construction risk of personnel is reduced, and the labor operation intensity is reduced.

The utility model discloses a full-automatic solid-phase extraction instrument, which belongs to the technical field of solid-phase extraction instruments, and has the technical key points that the full-automatic solid-phase extraction instrument comprises a bottom plate, stations on an extraction column can be moved and switched one by one through an arranged extraction station switching mechanism, the automation degree is high, the manual operation is reduced, and the production efficiency is improved. The extraction station switching mechanism can synchronously drive the extraction liquid dropping mechanism to operate, that is, when the extraction column moves by one station, the liquid injection pipe can correspondingly extract a proper amount of liquid for liquid dropping operation, the automatic operation mode greatly shortens the time required by the extraction process, the overall working efficiency is improved, and the labor intensity of workers is reduced. The liquid injection amount of the liquid injection pipe can be adjusted and used through the arranged extraction adjusting mechanism, so that an operator can better adjust the volume of a solvent dropwise added each time according to specific experiment requirements, the extraction conditions are optimized, meanwhile, the universality and practicability of the equipment are improved, and the production efficiency is improved. The device has the advantages of high automation degree, convenience in extraction processing and high working efficiency.

The utility model discloses an internet-of-things control device, mainly relates to the internet-of-things control technical field, the internet-of-things control device comprises a salvage piece used for salvaging garbage, a support piece fixed on a sewer pipe access hole, and a driving piece based on internet-of-things control, the driving piece comprises a driving part and a guiding part, the guiding part is provided with a penetrating type guiding channel in the direction perpendicular to the horizontal plane, at least part of the driving part is rotationally connected to the interior of the guiding channel, the bottom of the moving part is connected to the fishing part, and the moving part is driven by the driving part to move up and down along the guiding channel. The salvage piece moves up and down relative to the sewer pipe access hole, so that garbage below the sewer pipe access hole can be driven to the outside of the sewer pipe access hole, and the problems that maintenance personnel need to climb to the position below the sewer pipe access hole to clean the garbage, the garbage cleaning difficulty is increased, and the manual operation cost is increased are solved.

The utility model discloses an automatic feeding and discharging mechanism of an electric induction heating heading furnace, which solves the problems of low automation degree, high energy consumption and the like in the prior art, and is characterized in that a feeding device consists of a feeding turning plate mechanism, a workpiece aligning device, a transition slope plate (9), a feeding ejector rod mechanism and a feeding slope rack (11), the discharging device is composed of a heading turning plate mechanism, a heading roller way (3), a discharging turning plate mechanism and a material collecting frame (1). The steel pipes are aligned and fed into the furnace, the heating length of the heads of the steel pipes is accurately controlled, and the heating time of the pipe heads is saved. A good heating mode is provided for steel pipe heading, the labor operation mode is improved, the productivity is greatly improved, and compared with a traditional gas heading furnace manual feeding and discharging mode, the steel pipe heading furnace has the advantages that the structure is reasonable and compact, the automation degree is high, the labor intensity is relieved, the accident rate is low, the operation cost is saved, and the product quality is improved. The device can be widely applied to the steel pipe head pinching process.

The invention provides a multi-project real-name labor service management system in the construction industry, and relates to the technical field of labor service management. The system is configured as follows: enterprise labor service personnel data and project data are collected, personnel division aiming at projects is carried out, and enterprise labor service personnel division data are formed; carrying out on-duty monitoring analysis on the labor service personnel according to the enterprise labor service personnel division data to form on-duty monitoring analysis data; and acquiring enterprise labor attendance data, and performing attendance check analysis in combination with the on-duty monitoring analysis data to form attendance check result data. According to the system, enterprise-oriented comprehensive labor employment management is established through reasonable labor operation information data analysis, effective labor management is realized more comprehensively, the labor employment management level of an enterprise is improved, and the on-duty operation supervision effect is improved.

The utility model belongs to the technical field of plate processing, and particularly relates to an engineering plate drilling device which comprises a drilling machine, the drilling machine is connected with a sliding door in a sliding mode, a drilling assembly is arranged on the inner wall of the drilling machine, a workbench is fixedly connected to the inner wall of the drilling machine, and a clamping device and a limiting device are arranged on the workbench. The clamping device comprises a fixing ring. According to the plate drilling device for engineering, the clamping device is arranged, a clamping plate is driven by a stretching belt to clamp a plate inwards, the plate drilling stability is ensured, the scrap protection function and the plate clamping function are ingeniously integrated together through linkage of an extrusion block, a folding plate and other components, the plate is automatically clamped in the drilling process, and the plate drilling efficiency is improved. According to the plate drilling device, additional manual operation is not needed, the working efficiency is improved through automatic operation, the manual operation time is shortened, the labor intensity of manual operation is reduced, automatic clamping is achieved at the beginning of drilling, the stability of a plate in the drilling process can be ensured, and the drilling precision is improved.

The utility model relates to brine feeding technology field, and disclose a kind of brine quantitative feeding system, including brine buffer tank, brine feeding module and curvilinear quantitative feeding module, brine buffer tank is supplied brine to brine buffer pipeline by water supply pump;For modulating about 19 °Bé brine, and keep brine pressure of brine buffer pipeline in about 0.4mpa;By brine quantitative feeding car and curvilinear wind force conveying device, brine and curvilinear are respectively quantitatively fed into to sunning jar and enter jar fermentation;Two kinds of module can accurately control feeding amount, ensure product quality and the uniformity of fermentation process.The system is high in degree of automation, reduces manual operation, improves efficiency and reduces error, automation reduces manual operation time, improves production efficiency, shortens production cycle, automation reduces physical labor of worker, reduces labor intensity and physical consumption, automation reduces the risk that worker contacts harmful substance, improves the safety of workplace.

The present application relates to the field of hot galvanizing surface slag cleaning, and relates to a device for blowing and scraping hot galvanizing zinc pot surface slag, which comprises a zinc pot and a pneumatic slag removal device arranged in the zinc pot, wherein the pneumatic slag removal device comprises a shell and a gas distribution pipe in communication with the shell, the gas distribution pipe is provided with an air inlet, a gas chamber for storing gas is arranged in the shell, gas channel side plates are arranged in parallel at the bottom of the shell, a gas chamber in communication with the gas distribution pipe is arranged on the shell, a plurality of blowing ports are formed through the lower end surface of the gas chamber, and a flow guide plate is rotatably connected to the outside of each blowing port; the flow guide plate is vertically arranged between the gas channel side plates. Compared with the prior art, the present application has the advantages of reducing manual labor operation, improving the automation level of the zinc pot, and improving the production efficiency.

The present invention discloses a fully automatic production line for shoe molds, including a control mechanism, a material waiting mechanism, a transmission mechanism and at least four CNC processing equipment, each of which has a slave PLC controller, and the CNC processing equipment is numbered as slave one, slave two, slave three and slave four, the control mechanism is a host PLC controller, the material waiting mechanism includes a workbench and a plurality of transport carts that move in a circle on the workbench, each transport cart has a different digital number, the workbench has a pick-up point and a loading point, a sensor one is installed at the pick-up point, the transmission mechanism includes a ground rail, a mechanical arm is slidably matched on the ground rail, and the CNC processing equipment is respectively located on both sides of the rail. After improvement, automatic loading and unloading is realized, manual labor operation is reduced, and work efficiency is greatly improved.

The application provides a BCM electric appliance box cover labeling device and relates to the technical field of labeling machines.The device comprises a guide rail, a contact piece arranged on a side support and in sliding cooperation with a fixing plate, and a needle rod.The needle rod can be automatically inserted into the air hole for dredging when the fixing plate moves downward relative to the contact piece during the labeling process of the contact piece adsorbing the label, thereby ensuring the stability of the negative pressure adsorption, ensuring that the label can be reliably adsorbed, and simultaneously saving the process of manual cleaning of the air hole, reducing the labor operation and maintenance cost, avoiding interruption of production due to cleaning work, significantly improving the batch production efficiency, and solving the problem that the adsorption air hole of the negative pressure structure of the labeling machine is easily adsorbed with dust, label paper scraps and other sundries in the environment, resulting in air hole blockage and poor air suction, which causes the negative pressure adsorption structure to be unable to form stable and effective adsorption force on the label, and thus unable to smoothly complete the label peeling work, and therefore manual cleaning of the adsorption air hole is required frequently, which not only increases the labor operation and maintenance cost.

The utility model relates to the technical field of curved surface structure concrete efficient scabbling, in particular to a curved surface efficient scabbling mechanical device. Comprising a walking mechanism, a lifting sliding mechanism and a chiseling mechanism. The walking mechanism comprises a supporting frame, and self-locking type universal wheels are connected to the bottom of the supporting frame. The lifting sliding mechanism comprises two bearings arranged on the top of the supporting frame in a sliding mode, hanging rings are connected below bearing fixing supports, and hanging hoists are hung on the hanging rings. The chiseling mechanism comprises a chiseling screw air compressor, a water tank, a chiseling mechanical box and the like; according to the utility model, the mechanical operation is realized, the manual operation amount and the labor intensity are reduced, and the body health of workers is protected; dust generated in the scabbling process can be collected and treated through the scabbling mechanical box and the spraying device, so that the influence of dust pollution on the environment and workers is effectively reduced; and through the design of the walking mechanism and the lifting and sliding mechanism, the device can adapt to construction requirements under different working conditions, and the applicability and flexibility of the device are improved.

The utility model discloses a subway tunnel hole inside micro disturbance grouting reinforcement hydraulic pipe inserting machine, include: base fixed structure, hydraulic telescopic mechanism, grouting pipe clamping mechanism, pipe inserting machine fixing frame, grouting safety device and grouting pipe. The subway tunnel hole inside micro disturbance grouting reinforcement hydraulic pipe inserting machine has the advantages of small size, light weight, simple and quick installation and disassembly, adopts the equipment to carry out the hole inside micro disturbance grouting reinforcement operation, can effectively reduce the construction personnel labor operation intensity, increases the construction operation face, reduces the lining structure deformation, settlement repair period, realizes more flexible, efficient structure deformation convergence and settlement repair reinforcement scheme.

The invention relates to the technical field of railway vehicle production and machining equipment, in particular to a welding device for railway vehicle production, a first rail and a second rail provide a stable large-range moving reference covering a whole workpiece for a whole welding system, a collaborative welding operation mode is adopted, and the welding efficiency is improved. Namely, the welding unit is driven by the driving mechanism to move on the first track in a large range and convey the welding gun head in place, meanwhile, the lifting adjusting mechanism is combined for multi-degree-of-freedom adjustment, accurate alignment is achieved, and therefore accurate welding seam tracking and posture keeping are guaranteed. Low-cost automatic welding is achieved by designing the suspension type walking track and matching with the multi-degree-of-freedom adjusting tractor to drive the welding unit, the multi-degree-of-freedom adjusting tractor has the universality for production of various railway vehicle ceilings and complex curved surface workpieces, the operation difficulty of personnel is greatly lowered, the labor operation intensity is greatly lowered, and the production efficiency is improved. The finished product quality and the production efficiency are effectively improved.