127results about How to "Increase the angle" patented technology

The invention discloses a multi-source fusion detection and formation recognition system for an unmanned aerial vehicle cluster. The multi-source fusion detection and formation recognition system comprises a radar detection system, a photoelectric detection system and an information processing module. The invention further discloses a multi-source fusion detection and formation recognition method for the unmanned aerial vehicle cluster. The method comprises the steps that the radar detection system obtains the initial azimuth information of the unmanned aerial vehicle; the information processing module generates guidance information according to the initial azimuth information; the photoelectric detection system tracks the unmanned aerial vehicle according to the guidance information to obtain an image of the unmanned aerial vehicle; and the information processing module obtains the three-dimensional position information of the unmanned aerial vehicle according to the initial azimuth information and the unmanned aerial vehicle image, carries out the recognition of the unmanned aerial vehicle cluster formation pattern, and obtains a formation pattern structure. According to the method, accurate identification and three-dimensional coordinate acquisition of individual targets in a long-distance high-resolution unmanned aerial vehicle cluster and feature identification of the formation of the unmanned aerial vehicle can be realized, and high-reliability information support is provided for command, control and strike decisions.

The utility model provides a loading and unloading vehicle operation docking system. The loading and unloading vehicle operation docking system comprises a first robot, a telescopic belt conveyor, a flexible matching conveying line and a second robot. The first robot is used for placing materials to be loaded on the telescopic belt conveyor; the front end of the telescopic belt conveyor is connected with the second robot through the flexible matching conveying line; the telescopic belt conveyor is matched with the flexible matching conveying line and used for conveying materials into the operation range of the second robot. And the second robot is used for moving into a specified compartment body according to a first control instruction sent remotely and / or a second control instruction generated by a processor of the second robot, and moving and working in the compartment body according to the working progress. According to the telescopic belt conveyor, due to the fact that the movement speed of the telescopic belt conveyor is different from that of the second robot, the length difference generated when the telescopic belt conveyor is matched with the second robot is generated when the telescopic belt conveyor is stretched or shortened, and operation efficiency is improved.

The invention discloses a method for improving the micro LED mesa morphology by using multilayer masks and segmented etching, and belongs to the technical field of semiconductor processing technologies. The method comprises the following steps: firstly, depositing a SiO2 mask layer on the surface of an epitaxial layer, and then obtaining a photoresist through hole structure through spin coating, exposure and development; then, a chromium metal film layer is deposited and then lifted away from the photoresist, and a patterned chromium metal film layer is prepared; taking the patterned chromium metal film layer as a mask, and etching to prepare a patterned SiO2 mask layer; etching the patterned chromium metal film layer and the upper region of the epitaxial layer by using an etching gas with a high Cl2 / BCl3 flow ratio, and etching the patterned SiO2 mask layer and the lower region of the epitaxial layer by using an etching gas with a low Cl2 / BCl3 flow ratio; by adjusting the time of the two etching processes and the flow parameters of the etching gas, the time point when the chromium metal film layer is consumed can be controlled, and the effects of controlling the up-down diameter of the table top and controlling the etching angle are achieved.

The invention discloses energy-saving high-pressure cleaning equipment for square and rectangular pipes, and relates to the technical field of high-pressure cleaning, the energy-saving high-pressure cleaning equipment comprises a main body frame, a cleaning module is mounted above the main body frame, a rotational flow collaborative cleaning mechanism is arranged in the cleaning module, and the rotational flow collaborative cleaning mechanism is used for changing a water flow mode to ensure internal and external water flow collaborative high-pressure cleaning; the introduced air conveying bin only surrounds the outmost periphery of the nozzle, air flow flows along spiral water flow on the outmost periphery of the nozzle after being discharged in a vertical flowing mode, through the design, the peripheral water flow obtains additional momentum under the action of wind power, and then the momentum is transmitted to the internal water flow through collision among fluid molecules; according to the process, redistribution of energy is achieved, energy of internal water flow is supplemented, and water flow impact force borne by the peripheral square and rectangular pipes and the internal square and rectangular pipes is more balanced through the effect of wind power on the peripheral water flow and transmission of the energy to the internal water flow.

The invention discloses a rotary counter-hedge industrial waste gas desulfurization system and a process thereof, comprising a reaction cylinder, wherein a top cover is fixedly connected to the top of the reaction cylinder, and an air inlet pipe is arranged on one side of the top cover; the rotary stirring action of the transmission blades is helpful to maintain the uniform distribution and flow state of the gas-liquid two phases in the mixing cylinder, which can accelerate the material diffusion and mass transfer process, and can increase the gas-liquid contact surface, thereby improving the efficiency of the desulfurization reaction; at the same time, the dirt, sediment and residue on the inner wall surface of the reaction cylinder and the mixing cylinder are cleaned by a soft scraper and a cleaning brush, thereby reducing the obstruction of the dirt to the gas-liquid reaction, allowing the gas and liquid to flow and mix more smoothly, thereby improving the desulfurization efficiency of the equipment, and the continuously rotating nozzle can make the reaction liquid spray into the waste gas in a more uniform and wider manner, thereby increasing the contact area of ​​the gas-liquid two phases, thereby accelerating the mixing effect between the waste gas and the reaction liquid.

The invention discloses a bearing ring polishing device for bearing production and machining, and relates to the technical field of bearing production and machining. A machine cabinet assembly is arranged at the bottom of the top base, a grinding table is arranged in the center of the top of the top base, supporting columns are arranged at the corners of the top of the top base, a circular plate is arranged at the tops of the supporting columns, a motor is arranged at the top of the circular plate, and an electric telescopic rod is arranged at the bottom of the circular plate. Bearing rings of different specifications and diameters are clamped in a self-adaptive mode through the L-shaped arc top plate, meanwhile, the friction force is gradually increased due to the fact that the guide arc plate and the rubber soft block continuously go deep downwards along with the bearing rings, and the stability of the bearing rings on the top of the grinding table is effectively improved; and the situation that the bearing ring shakes due to high-speed rotation of the grinding disc during grinding, the preset grinding direction of the bearing ring deviates, and the phenomenon that the grinding thickness of the bearing ring is not uniform is avoided.

The invention relates to an active lift augmentation tandem wing type ground effect aircraft, and relates to the field of ground effect aircrafts. The defects that a stable take-off environment is needed, take-off time is long, and operation is complex are overcome. An active lift-increasing tandem wing type ground effect aircraft comprises a machine body, a cockpit is formed in the middle of the top of the machine body, connecting pieces symmetrically arranged in the direction of the machine body are fixedly installed on the front side and the rear side of the machine body correspondingly, and wing structures are fixedly connected to the connecting pieces on the front side and the connecting pieces on the rear side correspondingly; the inclination angle between the wing structures fixed to the connecting pieces on the front side of the aircraft body and the ground, the inclination angle between the wing structures fixed to the connecting pieces on the rear side of the aircraft body and the ground and the inclination angle between the wing structures fixed to the connecting pieces on the rear side of the aircraft body are larger than the inclination angle of the front-side wings. By means of the tandem wing type layout, the inclination angles of the paddles, the front wing structure and the rear wing structure relative to the ground are increased, and when the aircraft runs, the aircraft can obtain the maximum lift force compensation under the influence of the ground effect.

The invention provides a form-convertible mobile charging and battery swapping station, and relates to the technical field of new energy automobile charging and battery swapping stations, the form-convertible mobile charging and battery swapping station comprises a mobile charging and battery swapping station body, the mobile charging and battery swapping station body is composed of a first charging storage bin, a battery swapping chamber and a second charging storage bin, and the battery swapping chamber is located on the right side of the first charging storage bin; the second charging storage bin is located on the right side of the battery replacing chamber, the left surface of the first charging storage bin is fixedly connected with a dragging frame through screws, and the bottom of the first charging storage bin is rotationally connected with two self-locking spinning wheels; the situation that an accident occurs due to the fact that the lifting device unstably lifts the automobile due to inclination of the charging and replacing station is avoided, the installation and use range of the charging and replacing station is widened, the charging and replacing station can be suitable for being installed in a slope terrain area, and the problems that an existing charging and replacing station installed on a slope needs to build a cushion table and a cushion slope and is inconvenient to transfer and inconvenient to move are solved. And meanwhile, the cushion platform and the cushion slope cannot be transferred along with the charging and battery replacing station, so that the mounting and transferring work of the charging and battery replacing station is tedious.

A multi-carrier signal angle and time delay estimation method based on a nested array belongs to the field of wireless communication, and comprises the following steps: firstly, designing a nested array set according to the number of radio frequency links and the number of pilot frequency carriers, and designing a beam forming matrix into a random banded Toeplitz matrix; meanwhile, selection of pilot frequency carriers is determined according to the nested array of the pilot frequency carriers. At a transmitting end, each pilot carrier transmits a unit matrix signal in each pilot block period time, at a receiving end, the signal received by each pilot carrier is vectorized, and all pilot carrier vectors are gathered to form a new pilot vector. The method comprises the following steps of: calculating a covariance of a new pilot frequency vector, selecting a maximum continuous holeless vector, improving a rank of the holeless vector by using a smoothing technology, finally solving a time delay, a departure angle and an arrival angle of each path by using a 3-D ESPRIT algorithm, and pairing all the time delays, departure angles and arrival angles through a MUSIC algorithm. After the method is used for processing data, a super-resolution method 3-D ESPRIT can be used for time delay and angle estimation, and the angle and time delay estimation precision is effectively improved.

The present application discloses a satellite communication portable station, including a host, a parabolic antenna, a base and an adjustment bracket, wherein the vertex end of the parabolic antenna is fixedly connected to the host; the adjustment bracket is arranged between the base and the host, one end of the adjustment bracket is rotationally connected to the first end of the base, the other end is rotationally connected to the first end of the host, the second end of the host is rotationally connected to the second end of the base, and the adjustment bracket can be retracted to adjust the length; when the adjustment bracket is extended, the adjustment bracket, the base and the host form a triangular structure; when the adjustment bracket is shortened to the shortest, the adjustment bracket, the base and the host overlap. In this arrangement, the parabolic antenna is fixedly arranged on the host, and the host is respectively connected to the base and the adjustment bracket, with high integration and no need for disassembly and assembly. When stored, the host, the base and the adjustment bracket can be overlapped by adjusting the adjustment bracket to reduce the occupied space. When in use, the tilt angle of the host only needs to be adjusted by the adjustment bracket, avoiding the cumbersome installation process.

The invention relates to the technical field of mine rail vehicle braking, and particularly discloses a passive mine rail vehicle brake which comprises a frame, wheels are rotationally connected to the lower ends of the left side and the right side of the frame through mounting seats, fixing plates are fixedly connected to the lower ends of the front side and the rear side of the frame, and the fixing plates are located between the two wheels. Brake mechanisms are arranged at the adjacent ends of the two fixing plates, auxiliary brake mechanisms are arranged at the upper ends of the wheels, and the brake mechanisms are in transmission connection with the auxiliary brake mechanisms through transmission mechanisms. When the driving mechanism runs, the brake mechanism can be driven to work, so that the braking effect is achieved, after a first brake pad in the brake mechanism is worn out, an auxiliary brake mechanism can be driven to work through the transmission mechanism, and then the situation that the construction progress is affected due to the fact that replacement is conducted by parking on a rail can be avoided; and when the vehicle runs to a specified maintenance position, the driving distance is increased, and the risk in the transportation process is increased.

The invention discloses a metal bent pipe surface treatment device, and relates to the technical field of metal bent pipe surface machining. The metal bent pipe surface treatment device comprises a fixed seat, a polishing mechanism is fixedly connected to the top of the fixed seat, a sweeping mechanism is fixedly connected to the interior of the polishing mechanism, and a sweeping mechanism is movably connected to the interior of the polishing mechanism. According to the surface treatment device for the metal bent pipe, the metal bent pipe can be ground through the grinding belt, the grinding belt only enables the part, disconnected from the metal bent pipe, of the grinding belt to be ground during grinding, the grinding position of the grinding belt continuously moves in a circulating mode, and an inner fixing ring can drive the grinding belt to rotate around the circumference of the metal bent pipe through a fixing frame; and the surface of the metal bent pipe is uniformly polished by the polishing belt, so that heat accumulation caused by continuous polishing of one part of the polishing belt is prevented, softening of the polishing belt due to heating and deformation of the metal bent pipe due to heating are prevented, and the machining efficiency is improved.

The invention discloses a high-pressure pulse meat flushing device, which relates to the technical field of meat processing, and comprises a cleaning treatment box, a top rotating ring rail groove frame, a bottom annular guide rail, a vertical linear guide rail, a side screw rod guide rail and a high-pressure pulse flushing adjusting assembly, under the cooperation of the high-pressure pulse flushing adjusting assembly, a picking piece or a shifting piece is adopted as an auxiliary cleaning tool on the whole, special parts such as fascia, connective tissue, hair and a grease layer of meat can be treated, better cleaning conditions are created for high-pressure pulse water flow, and the cleaning efficiency is improved. And the cavitation effect of ultrasonic waves is combined with high-pressure pulse water flow flushing, so that meat can be cleaned from inside and outside at the same time, the cleaning effect is greatly improved, and the cleaning efficiency and quality are improved.

The present invention provides a mobile charging and swapping station with transformable form, which relates to the technical field of charging and swapping stations for new energy vehicles, and comprises: a mobile charging and swapping station main body, which is composed of a first charging storage bin, a battery swapping room and a second charging storage bin, the battery swapping room is located on the right side of the first charging storage bin, and the second charging storage bin is located on the right side of the battery swapping room, the left surface of the first charging storage bin is fixedly connected with a towing frame by screws, and the bottom of the first charging storage bin is rotatably connected with two self-locking rotating wheels; the situation in which an accident occurs due to an unstable lifting of a car by a lifting device caused by the tilt of the charging and swapping station is avoided, the installation and use scope of the charging and swapping station is improved, and the charging and swapping station can be installed in a slope terrain area, which solves the problem that the existing charging and swapping station installed on the slope needs to build a pad and a pad slope, and the charging and swapping station is inconvenient to transfer, and the pad and the pad slope cannot be transferred with the charging and swapping station, resulting in cumbersome installation and transfer of the charging and swapping station.

The invention belongs to the technical field of medical instruments, and particularly relates to an abdominal wall puncture stitching instrument with a guide hole device. Comprising a puncture cannula device, a guide hole device, a puncture cone device and a threading hook, the puncture cannula device comprises a puncture cannula seat, a gas injection valve, a gas injection switch, a gas blocking valve, a rotary switch, a spring, a puncture cannula seat sealing cover, a lower sealing cover, a blocking piece fixing ring, a blocking piece, an upper pressing plate, an elastic sealing cap inner ring, a lower pressing plate, a self-debugging sealing cap and a positioning guide cover. The guide hole devices are arranged on the two sides of the puncture cannula device and symmetrically distributed with respect to the center line of the puncture cannula device, and each guide hole device is provided with a left guide hole, a right guide hole, a guide hole upper inlet and an auxiliary fixing hole. The puncture cone device comprises a puncture cone, a release switch, a puncture cone seat, a pressing key, a puncture cone guide hole I and a puncture cone guide hole II; the threading hook comprises a handle, a push handle reset spring, a push handle, a handle cover, a line pulling hook, a sleeve, a needle head tube and a suture line clamp.

The utility model discloses an omnibearing security camera monitoring device, and specifically relates to the security camera technology field, the omnibearing security camera monitoring device comprises a base plate, the upper end of the base plate is provided with a stand column, the rear end of the stand column is provided with a control electric box, the front end of the stand column is fixedly connected with an adjusting mechanism, and the lower end of the adjusting mechanism is in transmission connection with a rotating mechanism. According to the omni-directional security camera monitoring device, the omni-directional monitoring function of the monitoring camera can be realized by the device through the arranged adjusting mechanism, so that time large-area monitoring can be realized without using a plurality of monitoring devices, the monitoring angle and range are greatly improved, and the omni-directional security camera monitoring device is simple in structure and convenient to use. The production cost and the use cost are low; and through the arranged rotating mechanism, the monitoring camera can rotate in all directions without dead corners, so that a worker can control the monitoring camera conveniently, and real-time watching of a monitored area can be realized through remote operation.

The spraying arm assembly comprises a rotatable spraying arm and a steering piece, the spraying arm comprises a first cover body and a second cover body, and the first cover body and the second cover body are combined in a covering mode to form a first flow channel and a second flow channel. The first cover body is provided with a first spraying opening communicated with the first flow channel and a second spraying opening communicated with the second flow channel, and the axis of the first spraying opening and the axis of the second spraying opening are obliquely arranged relative to the rotating axis of the spraying arm and are not located on the same plane. The inclination directions of the first spraying opening and the second spraying opening are opposite; the steering part is movably arranged relative to the spraying arm and provided with a communicating cavity, and the communicating cavity is provided with a first position communicating with the first flow channel and a second position communicating with the second flow channel. The spraying arm assembly and the dish-washing machine can solve the problem that a dish-washing machine in the prior art cannot thoroughly clean some areas of tableware.

The utility model relates to the technical field of landscaping machinery, in particular to a rotary adjusting type hedge trimmer which comprises a second rotary table, a bottom plate, a telescopic guide rod and a connecting rod, and a first driving mechanism and a second driving mechanism are arranged on the bottom plate; the end part of the probing guide rod is rotatably connected with a rotating block, the rotating block is fixedly connected with a movable rod, the end part of the connecting rod is rotatably connected with a head swinging guide rod, the end part of the head swinging guide rod is rotatably connected with the tail part of the movable rod, the front end of the movable rod is connected with a connecting frame, and the connecting frame is connected with a machine head for trimming; through cooperative control of the dual-driving mechanism, the axial displacement response speed of the machine head and the tail end positioning precision are improved, the comprehensive trimming efficiency is improved compared with that of a traditional single-degree-of-freedom machine, a three-dimensional polar coordinate motion system is constructed through cooperation of the machine head and the single-degree-of-freedom machine, multi-degree-of-freedom composite motion of the axial telescopic stroke, the pitching angle and the horizontal rotation angle is achieved, and the comprehensive trimming efficiency is improved. Millimeter-level shape control of complex curved surface modeling can be achieved, and the requirement for accurate forming of special-shaped hedges in landscape engineering is met.

The invention provides an air direction and air volume adjusting device and an air direction and air volume adjusting method. The device comprises a central controller, a dust concentration sensor, a first flow sensor, a second flow sensor, an air volume adjusting assembly, a first air duct assembly, a second air duct assembly, a rotating assembly and an air outlet adjusting assembly. The central controller correspondingly controls at least one of the air volume adjusting assembly, the rotating assembly and the air outlet adjusting assembly to work according to dust concentration data detected by the dust concentration sensor and flow data detected by the first flow sensor and the second flow sensor. A mechanical structure does not need to be manually controlled for driving adjustment, so that the air direction and the air volume in a roadway are convenient to adjust, and time and labor are saved; moreover, the adjustment precision and sensitivity of the wind direction and the air volume are guaranteed, accurate control and quick response type dynamic adjustment of the air volume and the wind direction are effectively achieved, and then the good ventilation and dust control effect can be achieved.

The utility model discloses a fire-fighting early warning integrated device based on a community, and relates to the technical field of fire-fighting early warning devices. Comprising a mounting plate and a frame, a connecting assembly is mounted between the mounting plate and the frame, a fire-fighting early warning device is mounted in the frame, a dismounting assembly is mounted at the bottom end of the frame, a detection probe is mounted at the bottom end of the dismounting assembly, and the connecting assembly comprises a first telescopic part and a second telescopic part. Through the arrangement of the connecting assembly, the rotation of the second telescopic piece and the rotation of the rotating plate, the position of the telescopic end of the second telescopic piece is fixed through the second limiting threaded rod, and the position of the rotating plate is fixed by moving the limiting frame, so that the position of the internal structure of the connecting assembly is changed; the integrated device can be installed on a wall position or a ceiling, the installation limitation of the integrated device is avoided, and the practicability of the integrated device is improved.

The invention relates to the technical field of commercial vehicle electric drive axles, and discloses a coaxial three-gear sequence gear shifting commercial vehicle electric drive axle integrated with a planet row differential reducer, which comprises a motor, a gear shifting system assembly, a speed reduction planet row assembly, a differential reduction planet row assembly and a differential lock assembly, the differential reduction planet row assembly is connected with the speed reduction planet row assembly, the differential lock assembly is arranged on one side of the differential reduction planet row assembly, a left half shaft and a right half shaft are connected to the differential reduction planet row assembly, one end of the left half shaft is located on the outer side of the gear shifting system assembly, and one end of the right half shaft is located in the differential lock assembly. The gear shifting system assembly is connected with the motor and the speed reduction planet row assembly. The sequential gear shifting structure is used, only one gear shifting system is designed, the number and weight of parts are reduced, the assembly and after-sale fault risks are reduced, and through sequential gear shifting, the possibility that a mechanical structure is fool-proof and gear skipping does not occur is achieved.

This utility model discloses a composite light distribution module, a lamp, and a lighting device, relating to the field of lighting technology. The composite light distribution module includes a first lens and a second lens arranged sequentially from the inside to the outside along the optical axis. The first lens is arranged around the light source and has a first inner freeform surface and a first outer freeform surface. The surface of the first inner freeform surface facing the light source is concave along the optical axis. The first outer freeform surface and the first inner freeform surface form a first elliptical profile with decreasing thickness along the optical axis. A first light diffusion structure is disposed on the first outer freeform surface. The second lens is sleeved on the outside of the first lens and has a second inner freeform surface and a second outer freeform surface. The second inner freeform surface is arranged around the first outer freeform surface. The second outer freeform surface and the second inner freeform surface form a second elliptical profile with increasing thickness along the optical axis.

The utility model provides a backlight LED chip which comprises a substrate, the substrate comprises a first surface and a second surface which are oppositely arranged, the first surface comprises a light-emitting area and an insulating area, the insulating area is located at the geometric center of the first surface, and the light-emitting area is annularly arranged in the circumferential direction of the insulating area; a light-emitting structure is arranged in the light-emitting area, first reflecting layers are arranged on the light-emitting structure and the insulating area, and a second reflecting layer is arranged on the second surface of the substrate. According to the utility model, the insulation area is arranged at the geometric center of the first surface of the substrate as a non-luminous area to cancel the luminescence of the center of the chip and greatly reduce the central light intensity of the chip, and the second reflection layer is arranged on the second surface of the substrate to forcibly change the light emitting direction of the chip and improve the side light emitting of the chip, thereby improving the light emitting efficiency of the chip. The purposes of optimizing the light distribution curve of the chip and increasing the light emitting angle of the chip are achieved.

The invention discloses a field-based interactive teaching device for intelligent education, and the device comprises a connecting rod, the upper surface of the connecting rod is fixedly provided with a butt-joint rod, the upper surface of the butt-joint rod is fixedly provided with a first butt-joint disc, the upper surface of the first butt-joint disc is rotatably provided with a lifting mechanism, and the lifting mechanism is internally provided with a sleeving mechanism in a sliding manner. The LED display screen can be inserted into the sleeving mechanisms in a sliding mode, a first extension plate is installed between the two sleeving mechanisms in a sliding and penetrating mode, and a pushing mechanism is rotationally installed between the connecting rod and the lifting mechanism. Through the design of the sleeving mechanism, no tool needs to be used in the process of mounting and dismounting the LED display screen, the mounting and dismounting process is quicker, tool operation is not needed, the possible accident risk in the tool use process is reduced, the LED display screen can be quickly mounted and dismounted in various environments, and the mounting and dismounting efficiency of the LED display screen is improved. The method is not limited by the availability of tools, and the capability of dealing with emergency situations is improved.

The invention discloses a high-performance aluminum alloy friction stir welding seam quality detection device, and relates to the technical field of welding quality detection.The high-performance aluminum alloy friction stir welding seam quality detection device comprises a welding seam detection mechanism, a displacement mechanism is arranged at the top of the welding seam detection mechanism, a conveying mechanism is arranged at the bottom of the displacement mechanism, and clamping turnover mechanisms are arranged on the two sides of the conveying mechanism; the weld joint detection mechanism comprises a detector, visual probes are fixedly connected to the two sides of the detector, and an ultrasonic array probe is fixedly installed at the bottom of the detector. Through multi-direction and multi-angle adjustment, the detection angle is increased, the detection range is further increased, the detection effect is guaranteed, the detection efficiency is effectively improved, the overturning function is achieved through control of the overturning motor, a clamped object can be rapidly adjusted, and the detection efficiency is improved. And the multi-surface gap detection function can be realized.

The present invention discloses an immersion-disinfection filter element air purifier with quick-release and quick-installation, which relates to the technical field of air purifiers and comprises a filter body and a power connection line, and also comprises: a quick-release installation mechanism, a detection and protection mechanism and an immersion-type filter element mechanism. By setting the detection and protection mechanism, it is avoided to perform potentially dangerous maintenance or operation in a live state, thereby improving the safety during maintenance. At the same time, by storing the power connection line and fixing the sliding cover with the quick-release installation mechanism, since the power connection line plug in the prior art is larger than the diameter of the power connection line body, after the power connection line is stored in the storage groove, the power connection line is blocked by the movable sleeve and cannot be separated from the storage groove, thereby avoiding the problem of the power connection line being placed arbitrarily, preventing the phenomenon that someone nearby mistakenly plugs the power connection line back into the power supply, and further improving the safety.

The utility model belongs to the technical field of needle bearing machining, and particularly relates to a multi-angle surface grinding device for needle bearing sleeve ring machining, which comprises a base, a mounting frame is fixedly mounted on the upper surface of the base, a mounting seat is vertically and slidably connected onto the mounting frame in a limiting manner, and a grinding block for grinding a needle bearing sleeve is arranged on the lower surface of the mounting seat. A second motor for driving the grinding block to rotate is mounted on the upper surface of the mounting base, a first rotating shaft is rotationally connected to the surface of the mounting frame through a fixed shaft, and a needle bearing ferrule fixing and clamping mechanism is arranged at one end of the first rotating shaft; according to the multi-angle grinding machine for the needle bearing ring, the clamping mechanism is arranged to fix the needle bearing ring, multi-angle machining can be conducted on the needle bearing ring arranged on the connecting plate in a sleeving mode when the fixing table is rotated, and the multi-angle grinding machine for the needle bearing ring has the advantages of being capable of conducting multi-angle grinding on the needle bearing ring and high in stability; and the stability during multi-angle machining is further improved.