30results about How to "Physical Security" patented technology

The invention discloses a mobile internet based pregnant and lying-in woman health surveillance system. The mobile internet based pregnant and lying-in woman health surveillance system comprises an intelligent terminal, a cloud server, an electrocardiogram detection device and a blood oxygen saturation degree detection device. The electrocardiogram detection device and the blood oxygen saturation degree detection device are respectively used for acquiring an electrocardiosignal and a blood oxygen saturation degree signal of a pregnant and lying-in woman and sending the electrocardiosignal and the blood oxygen saturation degree signal to the intelligent terminal. The intelligent terminal is used for uploading the electrocardiosignal, the blood oxygen saturation degree signal, a scale screening result and clinic information to the cloud server. The cloud server is used for receiving biochemical analysis information and the information uploaded by the intelligent terminal, accordingly automatically completing health state analysis on the pregnant and lying-in woman, generating corresponding nursing and health-care guidance and then feeding a health state analysis result and the nursing and health-care guidance back to the intelligent terminal. The mobile internet based pregnant and lying-in woman health surveillance system utilizes a mobile internet technology and facilitates real-time monitoring of the mental stress condition and the body health state of the pregnant and lying-in woman so as to prevent antenatal and postpartum depression.

The invention discloses a method for extracting low-methoxy pectin from apple pomace, comprises the following steps: washing apple pomace by using water at 30-40 DEG.C, microwave treating at 380-500 W and then filtering, microwave drying, the filtered apple pomace, stoving and crushing to obtain apple pomace powder, mixing the apple pomac powder and acid water to perform microwave treatment at 480-500 W, concentrating centrifuged supernatant as concentrated solution, pouring the concentrated solution in an upright filled with active carbon, and collecting the filtrate; heating the filtrate to 5-10 DEG.C, adding alkali solution to regulate the pH value, adding the acid water in the obtained pectin concentration solution to regulate the pH value to 3-5, adding ethanol water in the pectin concentrated solution, mixing, standing and centrifuging to obtain the precipitate, washing by using the ethanol water for 7-8 times, washing, precipitating, vacuum freezing and drying to obtain a substance, namely, the low-methoxy pectin. The process is coherent and simple, the required reagent is reagent in common use, low in cost and easy to purchase; the extracting rate can achieve 7.9-9.4%, the esterfication degree is 38.7-41.4%, and the galacturonic acid content is 72-82%.

The invention discloses an industrial waste gas purification device with a multi-time filtering effect, and relates to the technical field of air purification. The industrial waste gas purification device with the multi-time filtering effect has a device body, an air inlet is formed in the left side of an inner cavity of the device body, the surface of the air inlet sleeves a first exhaust fan, afirst filtering net is arranged on the left side of the inner cavity of the device body, a second filtering net is arranged in the middle of the inner cavity of the device body, and a material storagebox is fixedly installed on the upper left surface of the device body. According to the industrial waste gas purification device with the multi-time filtering effect, the problem of poor filtering effects of existing filtering devices is solved, through cooperative arrangement of the device body, the air inlet, the first exhaust fan, the first filtering net, the second filtering net, a third filtering net, an air outlet and a second exhaust fan, under acting force of the exhaust fans, industrial waste gas filters out harmful substances after passing through three layers of filtering nets, theenvironment is improved, and bodies of users are also protected.

[Problem] To provide: a food packaged in a hard container for normal-temperature or chilled distribution use, which can be produced at low cost and by a simple procedure without requiring the use of any specialized apparatus, and in which a softened food material can be packaged while keeping the shape thereof; and a method for producing the food. [Solution] A food packaged in a hard container for normal-temperature or chilled distribution use can be developed by: a method in which a food material, a degrading enzyme and a seasoning solution are packaged in a hard container, the hard container is warmed in a hermetically sealed state to achieve an enzyme impregnation step and an enzymatic reaction step in the hard container, and then the hard container is heated without any modification to achieve the entire process of an enzyme deactivation step and a sterilization step in the hard container; or a method in which the degrading enzyme is introduced into the food material and then the enzymatic reaction step, the enzyme deactivation step and a part of the sterilization step are achieved in the hard container.

The invention discloses centrifugal dust removal equipment which comprises a device body. The device body is made of stainless steel chamfer materials and comprises a rotary motor, a centrifugal machine and a dust suction opening, the rotary motor and the centrifugal machine are arranged inside the device body, the dust suction opening is formed in the top of the device body, a rotary shaft is arranged at the bottom of the centrifugal machine, and the centrifugal machine is movably connected with the rotary motor by the rotary shaft. The centrifugal dust removal equipment has the advantages that the centrifugal dust removal equipment is made of the stainless steel materials, a storage device is used as power, and accordingly the device body is light, is low in noise and can conveniently move at any time; resonance and noise can be prevented, and accordingly the safety of workers for underground operation and deep-well operation can be greatly enhanced; water mist and dust in air can besucked into the centrifugal machine by the dust suction opening and a turbine, adsorption filter paper which is quite easy to replace is arranged on the side surfaces of the centrifugal machine, accordingly, large quantities of moisture and the dust can be adsorbed, the quality of work environments for the downhole workers can be greatly enhanced, and the physical health of the workers can be effectively guaranteed.

The invention discloses an environment-friendly paint device, comprising a water curtain device, a fan and a water pump, wherein a paint area is arranged between the fan and the water curtain device; the water curtain device is composed of a circulating water pipe, a pool and a water pump; the pool is arranged below the circulating water pipe; the water pump is arranged at the same side of the circulating water pipe and the pool; rows of small holes are evenly distributed at the transverse lower surface of the circulating water pipe; an outlet pipe at one end of the water pump is communicated with the circulating water pipe; and an inlet pipe at the other end of the water pump is communicated with the pool. Thus, by adopting the environment-friendly paint device, the health of painters and other worker residents nearby is ensured, the wastewater is safely processed, and the environment-friendly pollution is completely eradicated.

A method of extracting low methoxy-based fruit glue from an apple residue is that after washing the apple dregs with a 30-40 ° C water, 380-500W power microwave processing is filtered;After drying and powder, get apple slag powder; after mixing the apple slab powder and acid water, it is treated with 480-500W power microwave;Pillar, charge the filter liquid; after heating to 5-10 ° C, add an alkaline solution to adjust the pH value; in the obtained pectin concentration liquid, the pH value of the acid water addedEthanol aquatic solution, mixing, static, and the sedimentation of the glycol water solution was washed 7-8 times with ethanol aquatic solution; the substance obtained after the precipitation of the vacuum and drying after washing is a low-oxygen-based fruit glue.The invention process is simple and simple. The required additives are commonly used reagents, which are low in cost and easy to buy; the extraction rate reaches 7.9%-9.4%;%.

The invention discloses a cotton spinning machine, belongs to the technical field of spinning, and aims at providing a cotton spinning machine capable of effectively sucking dust. According to the technical scheme, the cotton spinning machine comprises a left bracket, a right bracket and a transverse rod, wherein the transverse rod is fixed to the top ends of the two brackets, an oil applying system is arranged on the left bracket, a yarn feeding system is arranged on the right bracket, and the oil applying system is connected with the yarn feeding system through an arranged false twister. Thecotton spinning machine is characterized by further comprising a dust collection device, the dust collection device is arranged under the false twister, the dust collection device is internally provided with a filter net, a motor is arranged under the filter net, an air inlet of the dust collection device is arranged under the false twister, and an air outlet of the dust collection device is arranged at the bottom end of the dust collection device.

The invention discloses a wood door with a purifier. The wood door with the purifier comprises a door frame and a door panel, wherein a square groove is formed in the lower part of the wood panel, and the purifier is mounted in the square groove. According to the invention, the purifier is mounted in a door body, so that the air is purified, and the indoor space can be further effectively saved.

The invention relates to the technical field of lithium battery processing and discloses a rubber tapping device for lithium battery production. The rubber tapping device comprises a box body; a baffle is rotatably connected to the front side of the box body; a fixing column is fixedly connected to the front side of the baffle; a positioning plate is rotatably connected to the surface of the fixing column; a positioning groove is formed in the bottom of the positioning plate; and a positioning column is fixedly connected to the front side of the box body. According to the rubber tapping devicefor lithium battery production, a handle is rotated clockwise or anticlockwise, so that a rotating disc drives a threaded rod to rotate; the threaded rod rotates to enable a clamp plate to rotate, and a fixing bolt I rotates; when the clamping plate moves to a proper position, the fixing bolt I rotates, so that a clamping plate I and a clamping plate II move downwards in a sliding groove, the device can fix a battery with any size, and meanwhile, the battery is prevented from sliding during rubber tapping to a certain extent, so that the lithium battery is prevented from being damaged.

The invention relates to the technical field of cable cutting, and discloses a cable cutting device used before communication engineering construction. The cable cutting device comprises a workbench,wherein the top of the workbench is fixedly connected with a base; a clamping groove is formed in the top of the base, the clamping groove is in a one-third cylinder shape, and the top of the base isfixedly connected with a support frame; and the support frame is in an inverted C shape. According to the cable cutting device used before communication engineering construction, a threaded rod rotates in the support frame by rotating a handle and pushes a clamping plate to slide downwards, and then the clamping plate and the base clamp and fix a cable through the clamping groove, so that workerscan more conveniently use the device to fix and clamp the cable, the workers can more conveniently cut the cable, and meanwhile, the cable does not easily slide slide when cut.

The present invention relates to a screen type medical care wheelchair. A seat plate is hinged to a backrest plate by means of a hinged shaft, and one end of the hinged shaft is fixed to a fixed point A of an inner motor disc by means of a pulley. A battery cavity is welded to a fixed point C of the inner motor disc, and one end of the battery cavity is movably hinged to a hinged arm plate. A tail end of the hinged arm plate is hinged to a footrest. A pull arm is welded to a fixed point B of the inner motor disc. A pneumatic bar is built in and diagonally braced in the pull arm, and a truckle is fixed to a tail end of the pull arm. An outer motor disc sleeves the inner motor disc, and the two discs are fixed by a concentric rotating shaft penetrating therethrough. A track is installed outside the truckle and the outer motor disc in a connection and sleeving manner. The screen type medical care wheelchair has the advantage that an isosceles right triangle-shaped morphological structure is used for fixation to a brushless motor, thereby achieving the stability of the wheelchair structure.

The invention discloses a cabinet hanger sorting and settling method for a ship process. The method comprises the following steps: S1, placing a bottom roller on a material settling track, and pushing a material settling trolley along the material settling track to a process material stacking and settling area; S2, adjusting a position of an electric block on a top cross beam to ensure that the electric block is located right above a target process cabinet hanger; S3, starting the electric block to lay down a lock hook to fix the lock hook with a center hole of the process cabinet hanger, then starting the electric block again to hang the process cabinet hanger to a certain height, the top cross beam moving, the lock hook unlocking to place the process cabinet hanger to a platform plate; and S4, moving the top cross beam and the electric block again to hang a new process cabinet hanger and performing cyclic work to sort and settle the process cabinet hanger. The material settling tool meets an actual working condition. Semi-automatic operation is carried out on an existing station, such that the production efficiency is improved and the labor intensity of operators is reduced.

The invention relates to the technical field of button cell explosion-proof covers, and discloses a button cell explosion-proof cover. The button cell explosion-proof cover comprises a cover plate, the interior of the cover plate is of a hollow structure, a ventilation hole is formed in the top of the cover plate, a fixing block is fixedly connected to the left side of the cover plate, a fixing hole is formed in the top of the fixing block, and a sliding groove is formed in the right surface of the interior of the cover plate. According to the button cell explosion-proof cover, by upward movement of a baffle, a transmission rod moves upward, and further, the transmission rod moves upwards on the surface of a positioning rod through a moving groove; meanwhile, the right end of a rotating rod rotates on the left side of the transmission rod; the left end of the rotating rod rotates upwards at the bottom of a first sliding block and enables the first sliding block to move leftwards on thesurface of the positioning rod, the transmission rod moves downwards, the baffle is reset, then impact force is buffered, meanwhile, the use and storage environment of a button cell is safer, and thebutton cell is more convenient to store.

The invention discloses a mixing device for fertilizer production. The device comprises a box body and a feeding hopper, the number of the feeding hoppers is two. The bottom of the feeding hopper is fixedly connected with the top of the box body; electric telescopic rods are fixedly connected to the top of the box body and located on the two sides of the feeding hopper. A top box is fixedly connected between the top ends of the two electric telescopic rods, a vertical pipe is rotatably connected to the bottom of the top box, the bottom end of the vertical pipe communicates with a transverse pipe, and a suction nozzle is fixedly connected to the bottom of the transverse pipe. The invention belongs to the technical field of the fertilizer production, and discloses the mixing device for fertilizer production. The number of the feeding hoppers is two. The distance between the top box and the feeding hopper can be adjusted, feeding is facilitated, feeding obstruction is avoided, operation is convenient, the top box is fixedly connected between the top ends of the two electric telescopic rods, the dust collection effect can be effectively improved, dust in air is reduced, and the body ofan operator is guaranteed to a certain extent.

The invention relates to the technical field of welding devices, and discloses an automatic welding device for a brake iron shoe. The automatic welding device comprises a workbench, wherein the top ofthe workbench is fixedly connected with a control box; the left side of the control box is equipped with a telescopic pole; the left side of the telescopic pole is fixedly connected with a welding head; a movable slot I is formed in the top of the workbench; and the top of the workbench is equipped with a fixed clamping device. A workpiece is put between two clamping plates I, a half-moon-shapedworkpiece is clamped into a clamping slot, and a rotary column rotates, so that a threaded rod I rotates, and therefore, two fixed blocks I relatively move on the surface of the threaded rod I; and the two fixed blocks I relatively move to drive the two clamping plates I to clamp the workpiece, so that a half-moon-shaped clamping device can clamp half-moon-shaped workpieces of different dimensions, and therefore, workers clamp the half-moon-shaped workpieces more conveniently and quickly to a certain extent.

The invention provides a voltage self-adapting power circuit. The voltage self-adapting power circuit comprises a substation, wherein the substation is internally provided with a power transformationcavity, the power transformation cavity is internally and fixedly provided with an iron core, the iron core is internally provided with a middle rated power transformation cavity, a high rated power transformation cavity is formed under the middle rated power transformation cavity, a low rated power transformation cavity is formed under the high rated power transformation cavity, the power transformation cavity is internally and fixedly provided with a plugging-in box located at the right side of the iron core, the plugging-in box is internally and fixedly provided with vertically symmetric middle rated copper sheets, the middle rated copper sheets are internally provided with middle rated jack cavities with rightward openings, the plugging-in box is internally and fixedly provided with high rated copper sheets located under the middle rated copper sheets, and the high rated copper sheets are internally provided with high rated jack cavities with rightward openings. The voltage self-adapting power circuit has the advantages that the structure is simple, the use is convenient, the improved design is carried out for the problems of different voltages of electric appliances used by international different countries, manual adjustment can be carried out according to the voltages of the electric appliances, the electric appliances are of mechanical structures, and in the process, only a key needs to be pressed, the conversion of the voltages can be completed.

The invention discloses a hand-cutting-preventing electricity bill cutting device having infrared induction. The hand-cutting-preventing electricity bill cutting device comprises a base. An air cylinder is arranged on the lower end surface of a crossbeam. A cutter is connected below the air cylinder. The upper side groove wall of a groove is evenly provided with a roller through a bearing. Spring clips are hinged on the upper end surface of the base. The upper end surface of the base is provided with a baffle plate through an electric telescopic column. The baffle plate is arranged on the upper side of the groove. The base and the groove are respectively arranged at the two sides of stand columns. The upper side and the lower side of the stand columns are respectively provided with an infrared inductor and a controller. According to the cutting device, the structure of the infrared inductor and the controller is adopted. When the infrared inductor induces the hand of an employee, the controller controls the air cylinder to suspend working so that the situation of accidental injury can be effectively avoided and the physical safety of the employee can be guaranteed. The structure of the roller and the baffle plate is adopted so that injury of the employee caused by the fact that the employee puts the hand at the lower side of the cutter can be avoided and the working efficiency can be enhanced.

The invention discloses a maternal health monitoring system based on the mobile Internet, including an intelligent terminal, a cloud server, an electrocardiographic detection device, and a blood oxygen saturation detection device; the electrocardiographic detection device and the blood oxygen saturation detection device are respectively It is used to collect ECG signals and blood oxygen saturation signals of pregnant women, and send the ECG signals and blood oxygen saturation signals to the smart terminal; the smart terminal is used to send the ECG signals, blood oxygen saturation signals, The scale screening results and clinical information are uploaded to the cloud server; the cloud server is used to receive the biochemical analysis information and the information uploaded by the smart terminal, thereby automatically completing the analysis of the health status of pregnant women and generating corresponding nursing and health care instructions , and then feed back the health status analysis results, nursing and health care guidance to the smart terminal. The invention utilizes the mobile Internet technology, which is beneficial to the real-time monitoring of the mental stress and physical health of pregnant women so as to prevent prenatal and postpartum depression.

The invention relates to the technical field of personal respiratory protection, in particular to a cold storage and heat preservation composite cooling tank of a positive pressure type oxygen respirator. In order to overcome the defects of cold storage, heat preservation, use and maintenance of a cooler of an existing positive pressure type oxygen respirator, the cold storage and heat preservation composite cooling tank of the positive pressure type oxygen respirator is provided and is assembled in a main machine of the positive pressure type oxygen respirator, freezing maintenance does not need to be mounted and dismounted, in storage and use in the daily environment, phase change cold storage and temperature control can be achieved, heat insulation and heat preservation can also be achieved, the storage and heat preservation composite cooling tank is in a standby state throughout the year and can be rapidly worn at any time for emergency rescue and put into a harmful environment to work, and therefore oxygen inhaled by a wearer within rated protection time is continuously constant in temperature, and breathing is smooth and comfortable. The storage and heat preservation composite cooling tank is mainly characterized in that a double-tank double-layer composite cooling device is composed of a cold storage inner tank, a heat preservation outer tank, a heat insulation and heat preservation material and a temperature control phase change cold storage agent.

The invention discloses a scrap iron splashing preventing telescopic protective plate of a metal cutting device. The scrap iron splashing preventing telescopic protective plate comprises a workbench,a first motor, a second baffle and a second hydraulic device; a first sliding groove is formed in the workbench; a first rotation shaft is arranged on the inner side face of a support frame, and a first roller is arranged at one end of the first rotation shaft; the first motor is arranged on the left side face of the support frame; fixing plates are arranged on the upper side face of the workbench; cutting seams are formed in the upper surface of a first baffle; a second roller is arranged on the side face of a transporting plate, the second baffle is arranged on one side of the transporting plate, and first hydraulic devices are arranged on the other side of the transporting plate; a third roller is arranged on the inner side face of a first fixing frame; the second hydraulic device is arranged on the outer side face of the first fixing frame; and a second rotation shaft is arranged in a grinding wheel. According to the scrap iron splashing preventing telescopic protective plate of the metal cutting device, the first baffle is arranged, and therefore metal chips generated through cutting are all blocked on a metal plate through the first baffle.

The invention discloses a multifunctional vehicle dust collection device, which comprises an electric control hoist, a movable dust collection cover, a telescopic dust collection sleeve, a waste gas fan, a dust collector and a waste gas chimney, wherein the movable dust collection cover is mounted at the lower end of the electric control hoist, the lifting of the movable dust collection cover is controlled by the electric control hoist, the movable dust collection cover comprises a dust collection cover body, a fixing frame and an electric control movable mechanism frame, the middle of the fixing frame is provided with a movable seat, the electric control movable mechanism frame is symmetrically arranged at two ends of the fixing frame and is in assembly connection with the movable seat, atelescopic dust blocking cover is mounted on the electric control movable mechanism frame, the electric control movable mechanism frame is connected with a motor through a transmission mechanism, thetelescopic dust blocking cover is located in the dust collection cover body, is close to the dust collection cover body and moves together with the electric control movable mechanism frame, and a vehicle electric plastic hanging curtain is mounted beside the fixing frame and the electric control movable mechanism frame. The invention further discloses a vehicle dust collection method. By utilizing the device and method disclosed by the invention, the actual problem of dust collection in the loading and unloading processes can be effectively solved.

The invention relates to the technical field of lithium battery processing, and further discloses a lithium battery cap pressure welding device. The welding device comprises a workbench, a control boxis fixedly connected to the top of the workbench, a moving rod is arranged on the front side of the control box, a welding head is fixedly connected to the bottom of the moving rod, a base is fixedlyconnected to the top of the workbench, the base is located on the front side of the control box and does not make contact with the control box, and a clamping groove is formed in the front side of the base. According to the lithium battery cap pressure welding device, a first clamping plate moves leftwards, compression of a spring is carried out, workers can more conveniently clamp caps with various sizes, the workers can conduct pressure welding on the cover caps more conveniently, meanwhile, the body safety of the workers is guaranteed to a certain extent, the workers are prevented from making direct contact with the device when conducting pressure welding on a lithium battery and the cover caps, and the situation that the workers are injured by the device is reduced.

The invention discloses a waist-hung inside-clothes air blowing cooling device for high temperature operation. The waist-hung inside-clothes air blowing cooling device for high temperature operation comprises an air blowing device. The air blowing device is connected with an air filter, the air filter is connected with an air transmission line, and the air transmission line is connected with an air dissipating section. When the waist-hung inside-clothes air blowing cooling device is used, the air dissipating section is pushed into the back of a human body through the neck of the human body, the air dissipating section is connected with the air transmission line, and the air transmission line is connected with the air blowing device hung on the waist. Cold air of the air blowing device enters the air transmission line through the air filter, the air enters the air dissipating section through the air transmission line, and an air blowhole in the air dissipating section diffuses air outward to achieve the purpose of cooling and removing sweat on the back of a coat of a user, so that constructors and operators under the high temperature can get the physical support.

The invention discloses a method for monitoring network usage time and flow. The method comprises the following steps: presetting flow which can be used by each network type within a certain time in an electronic product, monitoring the surplus flow of a first network type which is currently used within the certain time, and when the surplus flow of the first network type is 0, automatically accessing the network of the electronic product to the network of a second network type; and monitoring the surplus flow of the second network type of the electronic product within the certain time, when the surplus flow of the second network type is 0, automatically accessing the network of the electronic product to the network of a third network type, acquiring a time displayed by the electronic product in real time, and after the time displayed by the electronic product exceeds a time period when the network is allowed to be used, automatically closing a network data interface of the electronic product, wherein the electronic product provides an interface used for setting an operation password of the time period when the network is allowed to be used.

The invention discloses a voltage self-adaption power circuit capable of shifting gears and a using method thereof. The power circuit comprises a power transformation box. A power transformation cavity is formed inside the power transformation box. An iron core is fixedly arranged inside the power transformation cavity, a medium rate power transformation cavity is formed inside the iron core, a high rate power transformation cavity is formed below the medium rate power transformation cavity, a low rate power transformation cavity is formed below the high rate power transformation cavity, a plugging-in box located at the right side of the iron core is fixedly arranged inside the power transformation cavity, a vertically-symmetric medium rate copper sheet is fixedly arranged inside the plugging-in box, a medium rate jack cavity with a right opening is formed inside the medium rate copper sheet, a high rate copper sheet located below the medium rate copper sheet is fixedly arranged insidethe plugging-in box, and a high rate jack cavity with a right opening is formed inside the high rate copper sheet; the power circuit is simple in structure and convenient to use, the power circuit isimproved and designed for solving the problem that at present, different nations adopt different household appliance voltages internationally, manual adjustment can be performed according to the voltages of the household appliances, the mechanical structure is adopted in the process, and voltage conversion can be completed just by pressing down a button in the process.

The invention relates to the technical field of metal coating processing, and discloses a stirring system for reducing hydroxyl ion precipitation, the stirring system comprises a support frame, the support frame is C-shaped, the lower surface of the inner part of the support frame is fixedly connected with a reaction stirring barrel, and the upper surface of the inner part of the support frame is fixedly connected with a hydraulic machine. A rotating shaft moves downwards to enable a fixing ring to move downwards, then the left end of a first transmission rod moves downwards in a first fixing frame and rotates, and meanwhile the first transmission rod rotates downwards to enable a first rotating rod to rotate in a second fixing frame, the left end of the first rotating rod moves downwards, the right end of the first transmission rod slides in the first rotating rod, the first transmission rod and the first rotating rod form a V-shaped structure to rotate, collision of particles in the reaction liquid can be accelerated, and then the reaction speed of the reaction liquid in the reaction stirring barrel is accelerated.

The invention relates to the technical field of robot part machining, and particularly relates to a welding device for robot part machining. The welding device comprises a workbench, wherein a welding mechanism is arranged above the workbench; the welding mechanism comprises a first protection shell and a second protection shell; the first protection shell and the second protection shell are in a hemispherical shape; the outer side of the first protection shell and the outer side of the second protection shell are jointly provided with a driving mechanism fixedly connected with the workbench; the end, close to the first protection shell, of the second protection shell is vertically connected with a clamping block; and the end, close to the second protection shell, of the first protection shell is provided with a clamping groove matched with the clamping block. According to the welding device for robot part machining, during welding, sparks cannot be splashed, the sparks are prevented from being splashed to the body of a surrounding worker, damage of strong light to eyes of the worker can be reduced, the body safety of the worker is guaranteed to a certain degree, and safety during welding is improved.