33results about How to "Do not interfere with normal work" patented technology

The invention relates to a detection method of electric automobile insulating performance. According to the method, a relay 1 and a relay 2 are employed to connect with an anode and a cathode of a direct current bus respectively, voltage division resistors R1 and R1' are in series connection between the relay 1 and a ground (i.e. automobile body), voltage division resistors R2 and R2' are in series connection between the relay 2 and the ground, direct current source 1 injects a direct current signal to a circuit through a diode d1 and a resistor R3, and a direct current source 2 injects a direct current signal to the circuit through a diode D2 and a resistor R4. Four voltage sampling circuits are provided on the R1', R2', R3 and R4 resistors respectively. Through combining the above circuit with specific sampling and calculating steps, insulating performance detection is realized. According to the invention, a method of injecting direct current by a power source is employed to carry out detection, detection precision is high, resistance of the voltage division resistors can be selected to be a large value, influence on vehicle insulating performance in measurement is small, and normal working of an original vehicle system is not interfered.

The invention provides a high-precision GPS (global position system) distributive time-service method based on ping-pong buffer and a message mechanism. Clock synchronization among special equipment in a space remote control system is realized by a precise clock synchronization policy of hardware on time; and a GPS satellite synchronous clock serves as a clock source, and the time of each piece of special equipment is checked periodically by second pulse. Time information processing operation is completely finished in an FPGA (Field Programmable Gate Array), so that the time synchronization precision of the special equipment is not affected and the normal work of application programs of the special equipment is not intervened. A time-service time source also supports an IRIG-B (Inter Range Instrumentation Group) code time service, wherein the time frame speed of an IRIG-B type code is 1 frame / second, and 100-bit information can be transmitted. After a B type code is decoded, a 1c / s pulse signal, a 10c / s pulse signal, a 100c / s pulse signal. a 1,000c / s pulse signal, BCD (Binary-Coded Decimal) encoding time information and control function information can be acquired, and the synchronization precision can be up to dozens of nanosecond.

The invention discloses a visual detecting device for a surface crack of an underwater structure, which can be used for flexibly detecting the surface crack in real time under the condition that the operation of the structure is not interfered. Through the adoption of ultrasonic nondestructive cleaning and high pressure water jet flow, water scales, oil stains, mosses and sucker creatures attached to the surface of the underwater structure are removed so as to determine a detecting part; an image of a cleaned part is collected through the adoption of a underwater camera; and through an underwater acoustic communication method, the image is transmitted to an upper computer end for a detector to observe the detecting part. The visual detecting device for the surface crack of the underwater structure, disclosed by the invention, has the advantages as follows: through a sliding guide rail, a cleaning detecting position can be adjusted or multi-machine networking can be carried out; underwater key parts of engineering buildings such as dams and drilling platforms are monitored for a long time; and damages caused by enlargements of new cracks are avoided.

The invention discloses a micro-thrust measurement device with a cylindrical target. The micro-thrust measurement device comprises a target system, a displacement sensor system, a target mounting block and a thermal protection system. In the target system, an elastic beam and the target mounting block are connected and positioned through vertical angle aluminium, and the perpendicularity of the elastic beam is guaranteed; the target is mounted at the bottom end of the elastic beam. Through the design to the target, the axial speed of plume is converted into a radial speed, the influence of the target on the plume field of an engine is reduced, and the measurement result is more precise. In the displacement sensor system, a sensor mounting rod is vertically arranged, and the top end of the sensor mounting rod is fixedly connected with the bottom face of the target mounting block; a displacement sensor is mounted at the bottom end of the sensor mounting rod through a sensor mounting plate. In the thermal protection system, the elastic beam is subjected to thermal protection through two sections of ceramic tubes, and meanwhile the thermal protection to the sensor is achieved through a sensor protection cover. The micro-thrust measurement device has the advantages of being capable of achieving the integration and the reliability of a measurement result.

The invention discloses a micro thrust measurement device with an adjustable and high-magnetism gathering damper, which comprises a target system, a displacement sensor system, a target mounting block and a damping system, wherein in the target system, connection and positioning between an elastic beam and the target mounting block is realized through vertical angle aluminum, the verticality of the elastic beam is ensured, and the target is arranged at the bottom end of the elastic beam; in the displacement sensor system, a sensor mounting rod is vertically arranged, the top end is fixed with the bottom surface of the target mounting block, and the bottom end of the sensor mounting rod is provided with the displacement sensor via a sensor mounting plate; in the magnetic damping system, a magnetic stripe is formed by stripe magnets and soft iron blocks, the magnetism gathering effect is good, and the magnetic stripe is arranged on a base with an adjustable height to enable the damping force of the damper to be adjustable conveniently. The micro thrust measurement device with the damping system has the advantages that the thrust frame movable frame can be ensured to be quickly stabilized via the damper, the experiment time can be reduced, the experiment errors can be reduced, and the normal operation by the thruster is not disturbed.

The invention relates to a microwave solid-state power amplifier. The power amplifier works at the environmental temperature ranging from -45 DEG C to +65 DEG C and is used for amplifying a beacon signal and a remote signal between the star and the ground in the communication task, and the solid-state power amplifier adopts multi-stage amplifier cascading, the power amplifier comprises a preamplifier, a driving power amplifier and a final power amplifier connected in series orderly; a microwave signal input end is connected with an input end of the preamplifier, an radio frequency input and output end of each amplifier circuit is connected with a micro-strip isolator; two X-waveband cavity band-pass filters are respectively connected between the microwave signal input end and the preamplifier input end and between an output end of the preamplifier and an input end of the driving power amplifier. The preamplifier also comprises a small signal amplifier and a high-gain microwave integrated power amplifier which are connected in series orderly.

The invention discloses a retractable type movable hoisting platform and a ship comprising the same.The retractable type movable hoisting platform comprises a portal frame, a platform and a retractable system.The platform is arranged at one end of the portal frame, and multiple platform lug plates are hinged to the end, close to the portal frame, of the platform.The retractable system is installed between the portal frame and the platform and used for enabling the platform to rotate relative to the vertical portal frame, so that the platform is switched between a horizontal state and a vertical state.The ship comprises a cabin wall and a storeroom deck.The storeroom deck extends outwards from the cabin wall.The ship comprises the retractable type movable hoisting platform.By adopting the retractable movable hoisting platform, great convenience is brought for achieving safe goods hoisting.

The invention provides an adjacent well distance while-drilling electromagnetic large-range detection system without interfering adjacent well operation. The adjacent well distance while-drilling electromagnetic large-range detection system comprises an adjacent well signal transmitting module, a positive drilling signal receiving module and a ground signal processing module, wherein the adjacentwell signal transmitting module comprises adjacent well sleeves, insulating joints and a low-frequency alternating current power supply; the insulating joints are mounted in the middles of the adjacent well sleeves and spaced from the adjacent well sleeves; the ground surface low-frequency alternating current power supply supplies power to the two parts of the adjacent well sleeves at the two endsof the insulating joints; the positive drilling signal receiving module comprises a non-magnetic drill rod and an MWD, and the MWD detects magnetic field signals generated by current on the adjacentwell sleeves; and the ground signal processing module comprises an MWD signal detecting device and a computer, the MWD signal detecting device receives the magnetic field signals and transmits the magnetic field signals to the computer, and the computer is used for calculating the distance between an adjacent well and a positive drilling well through the magnetic field signals. The adjacent well distance while-drilling electromagnetic large-range detection system has the beneficial effects that in the drilling process, the adjacent well distance is detected while drilling, normal operation ofthe adjacent well is not interfered, the production efficiency is improved, and the detection precision is improved.

The invention relates to an optical cable ink writer which is used for printing characters on a surface of an optical cable. The ink writer comprises a working panel, at least one pair of impressing wheels, a fixed shaft, an ink writing disc and an ink writing belt, wherein the working panel is arranged vertically on the ground; the axis of the at least one pair of impressing wheels is arranged vertical to the working panel; the fixed shaft is positioned at the same side of the working panel together with the impressing wheels and is vertically fixed on the working panel; the ink writing disk is sleeved on the fixed shaft; the ink writing belt is reeled on the ink writing disk and is used for printing characters on the surface of the optical cable; the optical cable penetrates through between the impressing wheels and is vertical to the axis of the impressing wheels; the ink writing belt is arranged in parallel to the optical cable and is inserted between the impressing wheels and the optical cable; the working panel is also provided with a belt collecting disc which is used for reeling the used ink writing belt up again; and the belt collecting disc and the impressing wheels are positioned at the same side of the working panel. The belt collecting disc which is arranged on the working panel can be used for collecting the used ink writing belt neatly, the production line can be maintained, simultaneously the ink writing belt can not interfere the normal working of the optical cable ink writer, and the production efficiency is improved to a certain extent.

The invention discloses an intelligent false support rod device for a high-speed wind tunnel. The device comprises a displacement sensor, a transmission mechanism, a driver, a measurement and controlcable for connecting the displacement sensor, the transmission mechanism and the driver, and a subsystem for controlling the displacement sensor, the transmission mechanism and the driver, the displacement sensor is mounted at the head of the false tail support rod to monitor a gap between the false tail support rod and the model; and the transmission mechanism and the driver are installed in an inner cavity of the straight joint, and the driver drives the transmission mechanism to drive the false tail supporting rod to move relative to the model. The subsystem is connected with a measurementand control system of the high-speed wind tunnel and shares one computer with the measurement and control system of the high-speed wind tunnel. The device can realize following motion of the false tail support rod relative to the model, avoids collision between the model and the false tail support rod, and obtains more accurate tail support interference quantity under a larger attack angle; and the false tail support rod can be controlled to move according to an instruction, a gap between the false tail support rod and the model is changed, and the influence of the gap on support interferenceis studied.

The invention discloses a micro-thrust measurement device with a thermal protection system. The micro-thrust measurement device comprises a target system, a displacement sensor system, a target mounting block and a thermal protection system. In the target system, an elastic beam and the target mounting block are connected and positioned through vertical angle aluminium, and the perpendicularity of the elastic beam is guaranteed; and a target is mounted at the bottom end of the elastic beam. In the displacement sensor system, a sensor mounting rod is vertically arranged, the top end of the sensor mounting rod is fixedly connected with the bottom face of the target mounting block, and a displacement sensor is mounted at the bottom end of the sensor mounting rod through a sensor mounting plate. In the thermal protection system, thermal protection to the elastic beam is achieved through two sections of ceramic tubes, and meanwhile the thermal protection to the sensor is achieved through a sensor protection cover. The micro-thrust measurement device has the advantages that the entire measurement device is made to achieve integration through the target mounting block, so that the distance between the measurement device and an engine is very convenient to adjust, and even continuous automatic adjustment is achieved in the measuring process. Meanwhile, the measurement device is subjected to sealing protection to the greatest degree through the thermal protection system.

The present invention provides an abnormal behavior recognition system. The system comprises a data collection layer and a behavior analysis engine, and the data collection layer collects all authorized behavior data, and collects all server-side accounts of a data center, asset data and changes of the asset data; a white list is established according to the authorized behavior data; the change ofthe asset data is taken as an abnormal event, the data of the data acquisition layer is summarized to a behavior analysis engine, each abnormal event is compared with a white list by the behavior analysis engine, it is judged whether the content of the abnormal event belongs to the white list or not, and the abnormal event is made as an abnormal behavior if the content of the abnormal event doesnot belong to the white list; and the behavior analysis engine only gives an alarm for abnormal behaviors. The system has the advantages that the collection layer, the analysis layer and the application layer are transversely extensible, the application modules of the application layer longitudinally integrate the collection layer and the analysis layer, and various safety applications can be continuously and quickly developed according to user requirements.

The invention relates to an online automatic sampling method and device for a machine-made sand production monitoring system. The sampling method comprises the following steps: 1) fixedly mounting a sampling device above a finished product conveying belt of a machine-made sand production line; 2) enabling system processing software to send a sampling command, enabling a motor to drive a sampling arm to rotate circumferentially, and scrapping and sending a finished product on a conveying belt to a funnel; 3) continuously moving the sampling arm until the sampling arm touches the limit switch, then stopping moving and keeping the sampling arm suspended under the action of the counterweight device; 4) setting system processing software to send a repeated sampling command, and performing accumulating in the funnel to obtain the machine-made sand obtained for multiple times; and 5) enabling a metering device to weigh a proper amount of samples, enabling samples to enter a test system, allowing machine-made sand to flow in a recovery system. The device is uniform and flexible in sampling and strong in sample representativeness, does not interfere with normal operation of production equipment, and realizes a convenient and rapid automatic sampling mode of machine-made sand samples on a production line.

The embodiment of the invention discloses an online detection method for the surface shape of a reflector. On the basis of the principle of stripe reflection, a stripe image with ideal periodic changeis displayed through a display, a stripe image formed by the reflection of a reflector machined by an ultra-precision cutting machine is collected through an aperture camera, the surface shape of thereflector is judged and reconstructed according to the curvature of the stripe image, and thus, online detection of the surface shape of the reflector is completed. By using the online detection method for the surface shape of a reflector provided by the embodiment of the invention, a reflector with any smooth continuous surface shape can be detected without optical compensation device or precision position adjustment. The method has a greater dynamic range than the existing online detection method based on a laser interference detector, and takes shorter time and is less affected by the precision of the machine tool and the environmental conditions than the existing online detection method based on point-by-point ranging and scanning by a contact or non-contact sensor.

The invention discloses a retractable type movable hoisting platform and a ship comprising the same.The retractable type movable hoisting platform comprises a portal frame, a platform and a retractable system.The platform is arranged at one end of the portal frame, and multiple platform lug plates are hinged to the end, close to the portal frame, of the platform.The retractable system is installed between the portal frame and the platform and used for enabling the platform to rotate relative to the vertical portal frame, so that the platform is switched between a horizontal state and a vertical state.The ship comprises a cabin wall and a storeroom deck.The storeroom deck extends outwards from the cabin wall.The ship comprises the retractable type movable hoisting platform.By adopting the retractable movable hoisting platform, great convenience is brought for achieving safe goods hoisting.

The invention discloses an electro-hydraulic conversion part fault diagnosis system for a DEH (Digital Electro Hydraulic Control System), and belongs to the field of digital electric-hydraulic controlof power station steam turbines. The electro-hydraulic conversion part fault diagnosis system for the DEH comprises a servo control clamping piece, an electro-hydraulic conversion part, a servo wireless diagnosis module, a mobile terminal and a service end; fault diagnosis parameters in the existing DEH / MEH (Micro Electro Hydraulic Control System) are optimized by utilizing the advantages of a fault diagnosis algorithm; the fault diagnosis parameters are optimized in the situation of ensuring normal operation of the existing diagnosis system; and the fault diagnosis parameters are updated periodically, so that fault diagnosis results are more accurate.

The invention discloses a scraper conveyor tail chain fastening device. The device comprises a steering chain wheel shaft mounted on a bearing base A; the steering chain wheel shaft is in key joint with a steering chain wheel; multifunctional wheels are mounted on two sides of the steering chain wheel; one sides of the multifunctional wheels are gears, and the other sides are chain wheels; an adjusting shaft is parallel to the steering chain wheel shaft, and is mounted on a bearing base B; an adjusting handle is connected with the adjusting shaft; the adjusting shaft is provided with an adjusting chain wheel; the adjusting chain wheel is connected with the chain wheels of the multifunctional wheels through chains; the gears of the multifunctional wheels are engaged with racks; locking blocks are arranged in the engaged places between the gears of the multifunctional wheels and the racks; the racks are fixed with slide rails; the slide rails are provided with dovetail grooves; slide blocks are arranged in the dovetail grooves; and the bearing base A and the bearing base B are both fixed on the slide blocks. The device adjusts the position of the tail steering chain wheel shaft through mechanical transmission to adjust the center distance of head and tail chain wheels so as to realize the chain tensioning, is lower in cost and high in reliability, and can prevent the oil leakage problem caused by tensioning of a hydraulic cylinder.

The invention provides an adjacent well distance while-drilling electromagnetic large-range detection system without interfering adjacent well operation. The adjacent well distance while-drilling electromagnetic large-range detection system comprises an adjacent well signal transmitting module, a positive drilling signal receiving module and a ground signal processing module, wherein the adjacentwell signal transmitting module comprises adjacent well sleeves, insulating joints and a low-frequency alternating current power supply; the insulating joints are mounted in the middles of the adjacent well sleeves and spaced from the adjacent well sleeves; the ground surface low-frequency alternating current power supply supplies power to the two parts of the adjacent well sleeves at the two endsof the insulating joints; the positive drilling signal receiving module comprises a non-magnetic drill rod and an MWD, and the MWD detects magnetic field signals generated by current on the adjacentwell sleeves; and the ground signal processing module comprises an MWD signal detecting device and a computer, the MWD signal detecting device receives the magnetic field signals and transmits the magnetic field signals to the computer, and the computer is used for calculating the distance between an adjacent well and a positive drilling well through the magnetic field signals. The adjacent well distance while-drilling electromagnetic large-range detection system has the beneficial effects that in the drilling process, the adjacent well distance is detected while drilling, normal operation ofthe adjacent well is not interfered, the production efficiency is improved, and the detection precision is improved.

The invention discloses a micro-thrust measurement device with a thermal protection system. The micro-thrust measurement device comprises a target system, a displacement sensor system, a target mounting block and a thermal protection system. In the target system, an elastic beam and the target mounting block are connected and positioned through vertical angle aluminium, and the perpendicularity of the elastic beam is guaranteed; and a target is mounted at the bottom end of the elastic beam. In the displacement sensor system, a sensor mounting rod is vertically arranged, the top end of the sensor mounting rod is fixedly connected with the bottom face of the target mounting block, and a displacement sensor is mounted at the bottom end of the sensor mounting rod through a sensor mounting plate. In the thermal protection system, thermal protection to the elastic beam is achieved through two sections of ceramic tubes, and meanwhile the thermal protection to the sensor is achieved through a sensor protection cover. The micro-thrust measurement device has the advantages that the entire measurement device is made to achieve integration through the target mounting block, so that the distance between the measurement device and an engine is very convenient to adjust, and even continuous automatic adjustment is achieved in the measuring process. Meanwhile, the measurement device is subjected to sealing protection to the greatest degree through the thermal protection system.

The present invention relates to an indirect measurement method for wear of parts that are not easy to be disassembled, such as high-speed switching valves, comprising the following steps: Step S1: adding a direct test piece to the pipeline system of the indirect test piece to be tested; Step S2: and passing the measurement total Real-time measurement of the wear value of the direct test piece in pairs to obtain the wear value of the direct test piece; Step S3: According to the proportional relationship between the wear value of the direct test piece and the indirect test piece, according to the wear value of the direct test piece obtained from the measurement, obtain through proportional conversion Wear values ​​for indirect test pieces. The invention can obtain the wear data of the indirect test piece without dismantling it, and is suitable for pipeline systems buried deep underground and located at high places, as well as high-speed switching valves installed inside the system and other difficult-to-disassemble parts.

The invention relates to the technical field of hydraulic auxiliary detection tooling, in particular to a multi-way valve spool displacement detection device. There is a measuring piece interspersed in the main body of the tooling. The measuring end of the measuring piece extends into the inner cavity of the multi-way valve to be tested and resists the spool of the multi-way valve under test. The core moves left and right in the main body of the tooling, the sensing end of the measuring piece protrudes from the screw cap, and is set facing the displacement sensor; there is a pilot oil port on the main body of the tooling, and the pilot oil port and the inner cavity of the main body of the tooling are set through. There is an oil passage, and it communicates with the inner cavity of the multi-way valve under test. The pilot oil port enters the oil, and sends it to the multi-way valve under test through the oil passage, so as to realize the oil flow through the measuring port. No special or special displacement sensor is needed, the displacement of the valve core can be directly measured through the common sensor on the market, without interfering with the normal operation of the measured valve; no replacement or special end cap is required; there is no gap between the entire measuring rod and the main body of the tooling The seal seals through the gap.

The invention discloses a digital communication cable which comprises a cable core, a shielding layer and a sheath. The cable core comprises four sets of twisted pair wires. Each set of twisted pair wires is obtained through winding two single wires (1). The single wire (1) comprises a copper conductor core (11) and a polyethylene insulating layer (12). The sheath comprises an inner sheath (2) and an outer sheath (3). The inner sheath and the outer sheath are formed through squeezing a low-smoke halogen-free environment-friendly flame-retardant material. The inner sheath (2) is internally provided with a hole for accommodating the cable core. The outer sheath (3) packages the shielding layer (4). Furthermore a tinned copper wire (5) is arranged between the inner sheath (2) and the outer sheath (3). The shielding layer (4) packages the inner sheath (2) and the tinned copper wire (5).

The invention brings forward an integrated circuit for a daytime running light and a steering light. The integrated circuit for the daytime running light and the turn light comprises a steering line VCC1, a traffic lane VCC2, a common line GND, a triode Q1, a yellow light emitting diode integrated circuit and a white light emitting diode integrated circuit. An emitter electrode of the triode Q1 is in series connection with a diode D6 to be connected to the traffic lane VCC2. The emitter electrode of the triode Q1 is in series connection with one end of the white light emitting diode integrated circuit. The other end of the white light emitting diode integrated circuit is connected with the common line GND. A base electrode of the triode Q1 is in series connection with a resistor R7 and is connected with the common line GND. A resistor R6 is in parallel connection with the triode Q1. The steering line VCC1 is in series connection with one end of the yellow light emitting diode integrated circuit. The other end of the white light emitting diode integrated circuit is connected with the common line GND. The invention provides the integrated circuit, which is low energy in energy consumption, long in usage life, and which is energy saving, environmental protective, and space saving, for the daytime running light and the steering light.

The invention brings forward an integrated circuit for a daytime running light and a steering light. The integrated circuit for the daytime running light and the turn light comprises a steering line VCC1, a traffic lane VCC2, a common line GND, a triode Q1, a yellow light emitting diode integrated circuit and a white light emitting diode integrated circuit. An emitter electrode of the triode Q1 is in series connection with a diode D6 to be connected to the traffic lane VCC2. The emitter electrode of the triode Q1 is in series connection with one end of the white light emitting diode integrated circuit. The other end of the white light emitting diode integrated circuit is connected with the common line GND. A base electrode of the triode Q1 is in series connection with a resistor R7 and is connected with the common line GND. A resistor R6 is in parallel connection with the triode Q1. The steering line VCC1 is in series connection with one end of the yellow light emitting diode integrated circuit. The other end of the white light emitting diode integrated circuit is connected with the common line GND. The invention provides the integrated circuit, which is low energy in energy consumption, long in usage life, and which is energy saving, environmental protective, and space saving, for the daytime running light and the steering light.

The invention relates to an indoor water circulation system, and belongs to the field of building temperature regulation. The indoor water circulation system comprises a heat insulation layer, a pumping assembly, a recycling assembly and an energy storage assembly, wherein the heat insulation layer is arranged on the inner wall of a building, and a cavity is formed in the heat insulation layer; the pumping assembly comprises a water pump and a drainage pipe connected to the water pump, the drainage pipe is located in the cavity of the heat insulation layer, and a plurality of water outlet holes are formed in the drainage pipe in the length direction; the recycling assembly comprises a recycling box and a recycling pipe arranged on the recycling box, and the recycling pipe communicates with the cavity of the heat insulation layer; and the energy storage assembly comprises an energy storage box, and the energy storage box is connected to the end, away from the water pump, of the drainage pipe. The indoor water circulation system has the effect that the humidity in the plant is not increased while the plant is kept at a low temperature.

The present invention provides an abnormal behavior recognition system. The system comprises a data collection layer and a behavior analysis engine, and the data collection layer collects all authorized behavior data, and collects all server-side accounts of a data center, asset data and changes of the asset data; a white list is established according to the authorized behavior data; the change ofthe asset data is taken as an abnormal event, the data of the data acquisition layer is summarized to a behavior analysis engine, each abnormal event is compared with a white list by the behavior analysis engine, it is judged whether the content of the abnormal event belongs to the white list or not, and the abnormal event is made as an abnormal behavior if the content of the abnormal event doesnot belong to the white list; and the behavior analysis engine only gives an alarm for abnormal behaviors. The system has the advantages that the collection layer, the analysis layer and the application layer are transversely extensible, the application modules of the application layer longitudinally integrate the collection layer and the analysis layer, and various safety applications can be continuously and quickly developed according to user requirements.

The invention relates to an automatic slag removal machine with narrow-gap MAG / MIG welding. The automatic slag removal machine comprises a rotary file assembly and a transverse swinging mechanism connected with the rotary file assembly, the transverse swinging mechanism is fixed on an elastic device, and the elastic device is fixed on a height adjusting mechanism; and, a height self-adaptive tracking control system is used for automatically detecting a real-time thickness of each layer of welding seam and outputting the real-time thickness to a height motor of the height adjusting mechanism, and the same thickness of the rotary file can be automatically lifted or reduced after each welding is completed to keep the rotary file and the surface of the welding seam in the same elastic pressingdegree all the time. Therefore, the automatic slag removal machine with the narrow-gap MAG / MIG welding has the advantages that 1, a removal rate of a deoxidation product can reach 100%; 2, impact andvibration do not exist in a cleaning process, and normal work of other automatic welding systems is not interfered; and 3, the production rate of automatic welding construction with narrow / ultra-narrow gap MAG / MIG welding is improved, and the high-strength and low-efficiency manual slag removal is enabled to enter an automatic and intelligent new stage.