68results about How to "Reduce the risk of impact" patented technology

The invention discloses a method for the cable-stayed construction of a self-anchoring type suspension bridge. The method is characterized by utilizing a permanent bridge tower of the self-anchoring type suspension bridge; a temporary stayed cable is stretched; suspending arms are spliced to form a girder section; after a cable-stayed bridge is folded, a main cable and a sling are mounted; and the self-anchoring type suspension bridge is formed through system conversion. In deep water, tidal bore or a navigation water area, the self-anchoring type suspension bridge adopting the cable-stayed construction method has the following advantages: (1) navigation and flood discharging are not influenced; (2) collision risk of ships is small; (3) the construction is rapid; and (4) temporary facility has low expense.

The invention relates to a flexible job-shop scheduling optimization method, which applies the Metropolis criterion and the sinusoidal adaptive step length to a firefly algorithm so as to optimize andsolve a discrete problem. On the basis of building a mathematical model, an initial solution population of a discrete combination problem is randomly generated, then local search in an individual domain is performed according to the Metropolis criterion in simulated annealing to generate a new individual, the internal energy difference between the new individual and the original individual is calculated, the new individual is accepted according to a certain probability, and global search is performed on each generation by using the discrete firefly algorithm with the sinusoidal adaptive steplength until an optimal solution is searched. The method can better search an optimal solution of the FJSP (Flexible Job-Shop Scheduling Problem) in the global space and has better search precision, search efficiency and stability, thereby having important significance and significant engineering practical application values for solving discrete problems such as job-shop scheduling.

The invention relates to an AUV rapid distributing and releasing recovering device under high sea conditions. The device comprises a V-shaped recovering box, an AUV guiding assembly, a sling assembly,and a stopping net assembly, wherein the V-shaped recovering box is used for storing an AUV; the AUV guiding assembly is mounted at the front portion of the V-shaped recovering box and used for achieving guiding of the near AUV; the sling assembly comprises a drum driving motor fixed at the bottom of an unmanned ship, a sling retracting and deploying drum and V-shaped frame slings correspondinglymounted at the four corners of the V-shaped recovering box, and the V-shaped frame slings control the drum driving motor to achieve releasing and retracting storing of the V-shaped frame slings through a driving motor controller instruction; and the stopping net assembly is mounted among the four V-shaped frame slings and used for achieving protecting stopping of the side surface and the back surface, and the fact that the AUV slides out of the V-shaped recovering box is avoided. Compared with the prior art, the AUV rapid distributing and releasing recovering device has the advantages that the recovery area is expanded, the requirement of high-precision docking is reduced, rapid deploying and retracting recovery is achieved, collision is prevented, and the safety protection is achieved.

The invention provides a large-scale natural gas hydrate formation and decomposition geological environment simulation system. The large-scale natural gas hydrate formation and decomposition geological environment simulation system comprises a natural gas hydrate reservoir simulation cavity, a stratum temperature control system, a gas-liquid injection system, an exploitation well system, a production system, a pressure sensor, a displacement sensor and an information acquisition control system; the gas-liquid injection system is in communication with the bottom of a cavity; the exploitation well system is arranged inside the cavity; the production system is connected with the output end of the exploitation well system; the output end of the production system is connected with the input endof the gas-liquid injection system; the pressure sensor is arranged in a simulation layer; the displacement sensor is arranged in the simulation layer; and the information acquisition control systemis electrically connected with the pressure sensor, a temperature control device, the gas-liquid injection system, the production system and the displacement sensor. The invention further provides a simulation method, in-situ geological stratification construction of the natural gas hydrate reservoir in the sea area is achieved, the geological environment system simulation requirement in the large-scale natural gas hydrate forming and decomposing process is met, and the defect that a small-scale simulation system is difficult to achieve pressure gradient changes in a real natural gas hydrate reservoir is overcome.

The invention relates to a melt-blown die head for nanofiber preparation. The melt-blown die head comprises a die head main body, a spinneret plate and an air plate, and the spinneret plate and the air plate are detachably mounted in the die head main body; a spinneret hole is formed in the spinneret plate, multiple slots are formed between the spinneret plate and the air plate, multiple air flowing channels are further formed in the die head main body, and the air flowing channels are communicated with the slots; air tube connection end sockets are arranged on the outer wall of the die head main body and are communicated with air flow collection cavities through air conveying pipes, interval steady flow parts are fixedly connected with one end face of the spinneret hole of the spinneret plate, a pipe connection device is fixedly connected with the other end face of the spinneret hole, and the spinneret hole is connected with a material outlet of a screw extruder through the pipe connection device. The melt-blown die head for nanofiber preparation has the advantages of being simple in structure, easy to manufacture, practical and efficient.

The invention discloses a coal quality detection information management system based on big data, relates to the technical field of coal quality detection information management, and solves the technical problem that the coal quality detection efficiency is reduced due to the fact that influence factors of coal quality detection cannot be analyzed in the prior art. Influence factors of coal quality detection are analyzed through an environment analysis unit and an equipment analysis unit, so that the risk that the quality of coal briquettes is influenced by a coal quality detection environment is reduced, the accuracy of coal quality detection is improved, and meanwhile, the working efficiency of coal quality detection is improved; the coal quality is prevented from being reduced due to abnormal operation of mechanical equipment, the coal quality detection efficiency is low, and unnecessary waste of coal briquettes is avoided; the detected coal briquettes are subjected to casual inspection, and the use quality of the casually inspected coal briquettes is judged, so that the working efficiency of coal quality detection is improved; and smooth information transmission between the preprocessing unit and the detection management platform is ensured, and the situation that the work efficiency of coal quality detection is seriously reduced due to accumulation of coal briquettes to be detected due to information transmission delay is prevented.

The invention discloses a TTE network transmission delay test system. The system comprises a to-be-tested TTE network, test execution equipment and test management equipment; the test management equipment is used for responding to a user test operation and sending a time delay test instruction to the test execution equipment; and the test execution equipment is used for acquiring sending signal information and receiving signal information in the TTE network to be tested in response to the time delay test instruction, and determining the transmission time delay of the TTE network according to the sending signal information and the receiving signal information. Visibly, the transmission delay of the TTE network is analyzed in a mode of combining board card trigger acquisition and software data analysis in the test execution equipment, that is, time data acquisition and analysis are performed on the TTE network at a board card level, the risk of influencing the data in the TTE network at a protocol layer is reduced, and the use of third-party test equipment is avoided, therefore, the complexity of TTE network testing is reduced, and the risk that TTE network transmission information is tampered and the correctness of transmission data is affected is also reduced.

The invention discloses a pressure relief method for fully-mechanized top-coal caving mining of steeply inclined coal seams. The pressure relief method for the fully-mechanized top-coal caving miningof the steeply inclined coal seams comprises the steps that the combination of roadway pressure relief blasting, deep hole blasting pressure relief of a pressure relief roadway and ultra-long hole blasting pressure relief of a coal body in a floor concentrated roadway is adopted, wherein the roadway pressure relief blasting performs blasting pressure relief on the lower slope angle of the side, close to the coal body of a working face, of a mining roadway, and then performs monitoring; if the index is within a normal range, the pressure relief work is completed; if the index is beyond the normal range, according to the actual situation of the working face, deep hole blasting pressure relief of the pressure relief roadway and ultra-long hole blasting pressure relief of the coal body in thefloor concentrated roadway are carried out; according to the deep hole blasting of the pressure relief roadway, blasting pressure relief is further carried out on a coal body stress concentration areaby forming coal body deep hole blasting holes in a bottom coal pressure relief roadway to fully crush the coal body; and according to the ultra-long hole blasting pressure relief of the coal body inthe floor concentrated roadway, coal body ultra-long blasting holes are formed in a bottom plate and a bottom coal area in the concentrated roadway through an original bottom plate concentrated roadway so as to reduce stress concentration and impact hazard degree of bottom coal.

The invention provides a method for isolated culture of mesenchymal stem cells from fetal membranes. The method comprises the following steps: tissue separation, cleaning, culture, passage and cryopreservation. The invention provides a method for separating the mesenchymal stem cells, which are derived from an amniotic membrane, chorion laeve and decidua parietalis, from the fetal membranes. The conventional material positions are changed, and the separation process is simplified. The mesenchymal stem cells are extracted with a tissue block wall adherence method, the extraction method is simple and fast, introduction of an exogenous enzyme is not needed, so that risks of an exogenous substance for affecting quality of a cell preparation are reduced, and the prepared cells have high activity and purity and better proliferation capacity.

-Method and device for visually scaring animal species, in particular bird species. -The device for scaring comprises means for generating at least one visual signal (S2) comprising at least one image (I2A, I2B), varying in size over time, which simulates approach via an increase in the size of the image (I2A, I2B).

A humeral component of a reverse shoulder prosthesis (2) comprises an elongate stem part (4) for location within the intramedullary cavity of the humerus, and an epiphyseal part having a concave bearing surface (12) for articulation with the convex bearing surface (12) of a glenoid component (8). The elongate stem part (4) defines a stem axis and the concave bearing surface of the epiphyseal part defines an epiphyseal axis. The epiphyseal axis is offset posteriorly relative to the stem axis.

The invention relates to a method for united removal heavy metal pollutants from landscape water body by plant material sorbent and a limnodrilus organism and a device thereof, belonging to the technical field of water body purification and environmental protection. The invention uses the plant material sorbent and the limnodrilus organism to unitedly remove the heavy metal pollutants from the landscape water body. The invention relates to a preparation process of the plant material sorbent and the limnodrilus organism and a special device for supplementary use, the special device is a tank body with a fixed separation net of the limnodrilus. The method comprises the following steps: putting the limnodrilus and the plant material sorbent on the fixed separation net in succession; suspending the tank body in the water body to be treated while the superface of the tank body is revealed from the water; supplementing the plant material sorbent into the tank body every 2-4 days while the processing period is 7-10 days. In the invention, the plant material sorbent after being absorbed heavy metal can be ingested by the limnodrilus, thus effectively improving biological effect of removal of the heavy metal from water body.

The embodiment of the invention provides an alarm clock ringing method and device. Through monitoring the preset ringing time of an alarm clock, when the ringing time is reached, whether an earphone is in a wearing state or not is judged; when the earphone is in the wearing state, a target ringing mode corresponding to the wearing state is obtained; the ringing is performed according to the target ringing mode. According to the embodiment of the invention, under the condition of detecting that a user wears the earphone, the ringing mode of the alarm clock is intelligently regulated; one ringing mode matched with the wearing state is selected for ringing, so that the ringing mode is matched with the use scene of the current user on the alarm clock; the risk of causing the influence of the ringing on the hearing ability of the user is reduced; meanwhile, the flexibility of the ringing mode of the alarm clock is improved.

The invention relates to the technical field of building construction, in particular to a construction method for resisting artesian water in a bottom plate pit of a foundation pit. The invention discloses a construction method for bottom plate pit backfilling sand ballast. The method comprises the following steps of: a, after a bottom plate is cast and reaches the designed strength, clearing garbage and accumulated water in the bottom plate pit so that the bottom plate pit is clean and tidy; and b, backfilling the backfilling sand into the bottom plate pit till the surface of the foundation pit. According to the construction method for the bottom plate pit backfilling sand ballast, the integral weight of the bottom plate is increased by piling yellow sand in the bottom plate pit to resist the artesian water, so that the water pumping quantity of the artesian water is reduced, the influence on the surrounding environment is reduced, and risk on the surrounding environment is effectively reduced. Moreover, the method is simple, convenient, practical and economic; the dug backfilled sand can be reused; and in addition, on the premise of effectively reducing the influence on the surrounding environment, the operation expense of pumping water in a pumping well is reduced to a certain degree, and the construction cost is further saved.

The invention relates to herbicide composition containing effective ingredients including metamifop and cafenstrole in the weight ratio being (15:1)-(1:15) and used for a rice paddy field. The herbicide composition acts on annual and perennial grassy weeds including barnyard grass, crab grass, eleusine indica or reed in the rice paddy field, on annual and perennial cyperaceae weeds including Scirpus juncoides Roxb, Eleocharis yokoscensis or Cyperus rotundus in the rice paddy field and also on annual and perennial broadleaf weeds including false loosestrife, sagittaria pusilla, Rotala indica or monochoria vaginalis in the rice paddy field. The herbicide composition has a remarkable synergistic effect, the control effect of the composition is improved to a certain degree while compared with that of a single agent, the use dosage of pesticides is reduced, and the pesticide use cost and the impact risk of the pesticides to the ecological environment are reduced.

The invention relates to the technical field of helmet hoops, in particular to a safety helmet hoop tightness adjusting device which comprises an adjusting box arranged on the rear portion of a safety helmet, a pair of helmet hoop belts oppositely arranged in the adjusting box in a penetrating mode and an adjusting assembly rotationally arranged on the adjusting box, the adjusting box comprises an inserting box and an inserting cover, the inserting box and an inserting cover are tightly buckled with each other, the two cap strap bodies are stacked between the inserting box and the inserting cover, the adjusting assembly comprises a rotary knob rotationally arranged between the inserting box and the inserting cover, and the rotary knob can control the tightness degree between the two cap strap bodies. The safety helmet hoop has the advantages that the problem that the head may be hurt by impact when a user falls down or falls down due to the fact that the adjusting knob of the safety helmet hoop is externally arranged is solved, and the problem that the external knob occupies a certain space is solved.

The invention relates to a miniaturized flight parameter wireless network adapting device, which is mainly composed of a power supply module 1, a signal conversion module 2, a wireless transmitting module 3, an antenna, a switch, an indicator lamp and a structural member, wherein the signal conversion module 2 comprises an Ethernet forwarding function submodule 201, a data receiving function submodule 202, an HDLC-ethernet signal processing submodule 203, a debugging function submodule 204, a data interface function submodule 205 and other auxiliary circuits. When the miniaturized flight parameter wireless network adapting device in the invention works, the flight parameter recoding system data is converted into HDLC bus data through the HDLC-ethernet signal processing submodule 201; and the ethernet data is forwarded to a ground maintenance device through the wireless transmitting module 3. The design production and maintenance cost of matched special cables are saved without the needfor a cable connecting operation, which is more convenient and saves the maintenance time; meanwhile, the risk of damaging onboard products and the ground maintenance device due to hot plugging of the cables is reduced.

The invention discloses a high-survival-rate sheep oosperm culture method for Hu sheep embryo in-vitro culture. The high-survival-rate sheep oosperm culture method comprises the following steps: (1) oocyte collection: sucking oocytes from ovaries of Hu sheep; (2) sperm collection: extracting sperms from the male Hu sheep; (3) fertilization: carrying out artificial fertilization on eggs and sperms;(4) embryo culture: putting the fertilized eggs into an incubator for culture; and (5) observation: observing the development condition of the embryo, wherein the incubator in the step (4) comprisesa main body, a feeding device, a rotating frame, a culture device and a discharging device, wherein the feeding device comprises a feeding channel, a conveying mechanism, a feeding opening, a rotatingtable and a transition mechanism. According to the method, the embryo survival rate is increased through artificial fertilization, the transition mechanism isolates the embryos from outside air whenthe embryos are placed into the incubator, so that embryo development is prevented from being influenced, and the discharging device realizes the purpose of independent taking a culture dish, so thatthe survival rate of embryos is increased.

The invention discloses an unmanned aerial vehicle inspection method for wind power blade detection, and the method is realized based on an unmanned aerial vehicle system, and the method comprises the steps: carrying out the photographing through a first unmanned aerial vehicle in the arrangement direction of a fan in response to a received inspection instruction; identifying the size of the fan displayed in the shot picture, and setting the fan with the largest display in the shot picture as an initial inspection point; after the sizes of the fans displayed in the shot picture are sorted in a descending order, extracting the number of the fans corresponding to an inspection preset value, and generating inspection paths according to the sequence based on the initial inspection points; enabling the first unmanned aerial vehicle to send GPS position information corresponding to each inspection point to the second unmanned aerial vehicle after confirming a first distance above a fan corresponding to each inspection point in the inspection path; and enabling the second unmanned aerial vehicle to shoot each fan according to the generation sequence of the routing inspection path according to the received GPS position information so as to obtain a thermal imaging image of each fan blade.

The invention relates to a docking device, which is used in a waste collection and treatment system, and used for transporting waste generated in a medical process and collected by a waste collection device in the system. The docking device includes: a mating portion for mating with a mating bracket of the waste collection device; wherein, the mating portion includes a mating plate, and the mating plate includes two floating ferrule guiding bayonets for engaging, and a docking end joint can pass through the guiding bayonet. Wherein the docking device further includes a baffle plate, the baffle plate is in a first position when the waste collection device is not connected, and the two docking end joints are blocked; after accessing the waste collection device, the baffle plate is in a second position, and the two docking end joints are exposed to contact the floating ferrule of the waste collection device to form docking. The docking device of the embodiment of the present invention can be more easily docked with the waste collection device by an inclined surface of the mating plate.

The invention provides an air purifying device which comprises a shell body, a shell body built-in air flue, an air purifier and a power unit. One end of the shell body is provided with an air inlet,and the other end of the shell body is provided with an air outlet. The air purifier comprises an adsorbing and filtering purifying mechanism, an ultraviolet sterilizing purifying mechanism, a photocatalytic decomposition purifying mechanism, a sterilizing and disinfecting purifying mechanism and a circulating fan which are sequentially arranged in the air flue. The indoor air quality is improved,the impact risk of air pollution on human bodies is reduced, the healthy breathing can be easily realized, and the health level and life quality of people are improved.

The invention relates to butting equipment for a waste collection and treatment system. The butting equipment is used for conveying the wastes collected by waste collection equipment in the waste collection and treatment system in a medical process. The butting equipment comprises an adapting head part, at least one actuation assembly and two butting end joints, wherein the adapting head part is used for being adapted with an adapting bracket of the waste collection equipment; each actuation assembly is arranged in the adapting head part and can freely extended and retracted in a special direction; the two adapting end joints are connected with the actuation assembly; after the adapting head part is aligned with the adapting bracket, the actuation assembly acts, so that each butting end joint is in contact with a floating sleeve head of the waste collection equipment to form butting; the adapting head part comprises an adapting plate, the adapting plate comprises two guide clamp portsfor clamping of the floating sleeve head, and each adapting end joint can penetrate through the corresponding guide clamp port. The butting equipment of the embodiment of the invention has the advantage that the butting equipment can be more easily butted with the waste collection equipment through the slope of the adapting plate.

The invention provides an unmanned aerial vehicle anti-collision method based on the Internet. The method includes the following steps of obtaining the driving trajectories of all currently-operated unmanned aerial vehicles, determining coordinates in the driving trajectories of all the currently-operated unmanned aerial vehicles, setting a driving trajectory on which a to-be-operated unmanned aerial vehicle is going to be operated, and making the coordinates of each point in the driving trajectory of the to-be-operated unmanned aerial vehicle different from the coordinates in the driving trajectories of all the currently-operated unmanned aerial vehicles. Since the driving trajectory different from the driving trajectories of other unmanned aerial vehicle is set in advance before the unmanned aerial vehicle is operated, the collision risk of the unmanned aerial vehicle and other unmanned aerial vehicles is avoided to a great extent. Meanwhile, in the operating process, in order to reduce the collision of the unmanned aerial vehicle with other obstacles such as birds, airplanes and other unmanned aerial vehicles to the maximum extent, an unmanned aerial vehicle control system further monitors the running environment of the unmanned aerial vehicle in real time, so the driving trajectory is changed in time when the collision risk exists, the original driving trajectory is restored when the collision risk disappears, and the collision risk of the unmanned aerial vehicle and the obstacles is further reduced.

A photovoltaic generation box transformer substation comprises a box transformer substation housing; a high voltage chamber, a transformer chamber and a low voltage chamber are arranged in the box transformer substation housing; a high voltage cabinet is arranged in the high voltage chamber; a transformer is arranged in the transformer chamber; a low voltage cabinet is arranged in the low voltage chamber; a high voltage side of the transformer is connected with a copper bar A, a copper bar B and a copper bar C; the other side of the copper bar A, the copper bar B and the copper bar C is connected with a wall bushing; a grading ring is arranged in the wall bushing; the low voltage side of the transformer is connected with a copper bar D and a copper bar E; the other end of the copper bar D and the copper bar E is connected with a breaker; the transformer is a dry type transformer, employs a duplex winding line, and a leading-out end is arranged above the transformer. The benefits are that the photovoltaic generation box transformer substation can reduce oil-immersed transformer oil leakage risks against environment, thus greatly improving product reliability, reducing maintenance cost, and the fuse can be conveniently replaced.

The invention discloses a pipe cleaner for removing black powder. The pipe cleaner comprises a hollow spindle with two closed ends, wherein a front flange and a back flange are mounted on the hollow spindle, a pipe sealing disc I fixedly connected with the front flange is arranged in front of the front flange, and a pipe sealing disc II fixedly connected with the back flange is arranged at the back of the back flange; at least one circle of steel brush group is arranged on the external circle of the hollow spindle located between the front flange and the back flange and comprises multiple steel brush assemblies distributed circumferentially and evenly; each steel brush assembly comprises a mounting base elastically connected with the hollow spindle, a permanent magnet and a steel brush are mounted on the mounting base, the steel brush is placed on the upper surface of the permanent magnet, and the steel brush and the permanent magnet are fixedly connected with the mounting base respectively. The pipe cleaner adopts such a structure that the permanent magnets are fixedly mounted on the steel brush mounting bases and used for producing magnetic force, so that the whole pipe cleaner is magnetic, particularly the steel brushes become magnetic steel brushes, the attraction force to the black powder is increased, and the black powder carrying and cleaning capability is improved.

A system for inspecting vanes of a wind turbine and an inspecting method thereof are disclosed for improving users' convenience for inspecting the vanes, reducing the cost of inspection and avoid bump between a UAV and the vanes. The system means for inspecting a wind turbine with a vane. The wind turbine has a rotation axis. The vane includes a first end and a second end, and the vane has an extending direction that extends form the first end toward the second end. The system comprises a UAV and an identification symbol. The UAV includes a controller and a camera coupled to the controller. The identification symbol is arranged on a surface of the vane. The identification symbol includes a banding symbol and a plurality of directional symbols. The banding symbol includes a first periphery and a second periphery parallel to each other. The first periphery and the second periphery both extend along the extending direction. Any two adjacent directional symbols are spaced from each other on the extending direction. Each directional symbol has a unique pattern.

The invention discloses an unmanned aerial vehicle system for fan blade detection. The unmanned aerial vehicle system comprises a control unit, a communication unit, a first unmanned aerial vehicle and a second unmanned aerial vehicle, wherein the first unmanned aerial vehicle is used for carrying out thermal imaging image sampling on a detected fan blade; the second unmanned aerial vehicle is used for carrying out high-definition image sampling on the detected fan blade. The invention provides the unmanned aerial vehicle (UAV) system and method for fan blade detection, which can improve the detection efficiency and the recognition accuracy, reduce the risk of collision between the UAV and the fan blade, and prolong the service life of the UAV and the fan blade.

The invention discloses an adaptive alternating current / direct current universal electromagnetic mechanism with a permanent magnet. The mechanism comprises a moving iron core, a static iron core, a coil system, a yoke system, a permanent magnet and a polar cap of the permanent magnet. By introducing the permanent magnet to provide an initial counterforce for the electromagnetic mechanism, the problem of poor mechanical reliability when a counterforce spring is used is solved and the matching relationship between an attractive force and the counterforce is also optimized, thereby facilitating the acceleration of movement speed of the moving iron core and the improvement of sensitivity of the electromagnetic mechanism. The shape of the moving iron core is a combination of a circular truncated cone and a cylinder or a combination of a prism and a prismatic table, and the cylinder or the prism part can have a groove; based on the parameter matching between the moving iron core and the other parts in the electromagnetic mechanism, the technical bottleneck that the acting characteristics of the alternating current / direct current universal electromagnetic mechanism with a permanent magnet is influenced by the current direction of the coil system or the polarity of the permanent magnet can be overcome fundamentally, therefore, the adaptive alternating current / direct current universal electromagnetic mechanism with a permanent magnet can be applied to short-circuit current sensing, mechanism unlocking or moving contact push execution units for low-voltage alternating current / direct current electric appliances.

The invention relates to the technical field of data processing, in particular to a data distributed storage method and a distributed data storage system. The method is applied to the distributed data storage system. The distributed data storage system comprises a client side, a master node and slave nodes, and the method comprises the steps of enabling the client side to obtain to-be-stored data and stores the to-be-stored data; sending the data to be stored to the master node; using the master node for segmenting the data to be stored and storing the segmented data; enabling the master node to change the to-be-stored data as a change log and sends the change log to the slave node; enabling the slave node to carry out segmentation on the change log; and enabling the slave node to store the segmented log data. Based on the invention, the reliability and availability of the database can be improved, and the risk of database change and maintenance can be dispersed.

The invention belongs to the technical field of valves, and particularly relates to a novel automatic ball grinding machine. The novel automatic ball grinding machine comprises a clamping mechanism, a grinding mechanism and a swing mechanism, wherein the clamping mechanism is used for fixing a ball and providing power for rotation of the ball, the grinding mechanism is used for grinding the ball, a rotating base is installed below the grinding mechanism, the grinding mechanism and the clamping mechanism are arranged in a crossed mode, the swing mechanism is connected to the rotating base and used for driving the rotating base to swing in a reciprocating mode, and the grinding mechanism synchronously swings along with the rotating base so that the grinding mechanism can grind the ball at different angles. According to the novel automatic ball grinding machine, the swinging mechanism drives the grinding mechanism to swing in a reciprocating mode, the weight of the grinding mechanism is lighter than that of the clamping mechanism and the ball clamped on the clamping mechanism, therefore, the swing mechanism can easily drive the grinding mechanism to swing, a motor with too high power does not need to be used, reciprocating swing is smoother, the phenomena of blockage and the like are avoided, the machining effect is guaranteed, and the machining precision can be improved.