96 results about "Fish fin" patented technology

The invention relates to an underwater bionic observation and collection integrated robot which is divided into two parts, namely a child cabin and a mother cabin, the child fish part comprises a fish body assembly, a fish fin assembly, a crab foot assembly and a child fish auxiliary assembly, and the fish body assembly is a main body of the robot and plays a supporting role; the fin assembly is divided into a pectoral fin mechanism and a tail fin mechanism, pectoral fins swing up and down to control the robot to sink and float, meanwhile, the pectoral fins are unfolded to become crab claws, and tail fins swing left and right to control the robot to advance; the crab foot assembly is unfolded and is matched with the crab pincers to realize a function of sampling an underwater sample; the child fish auxiliary assembly comprises a camera, a searchlight and a sonar device which are located at the front end of a fish body, and an infrared sensor at the rear end of the fish body; the mother cabin part comprises a cabin body assembly, a cabin cover assembly and a mother cabin auxiliary assembly, the upper layer of the cabin body assembly is a son fish recovery cabin, and the lower layer is a sample recovery cabin; the cabin cover assembly is arranged above the cabin body, and the cabin cover assembly and the cabin body are connected in an up-down openable mode through the mother cabin auxiliary assembly. According to the invention, underwater charging and underwater observation and acquisition integrated operation of the robot can be realized.

The invention relates to the technical field of bionic robotic fishes, and discloses a bionic fish fin, a bionic robotic fish and a wave-beat multi-mode hybrid propelling method.The wave-beat integrated propelling flexible fin propelling device comprises a supporting frame and a plurality of unit pieces sequentially arranged on the supporting frame; the first ends of the unit pieces are connected to the power output end of the flexible fluctuating motion driving device, every two adjacent unit pieces are arranged in an included angle mode, the multiple unit pieces are arranged in a wave shape, the second ends of the unit pieces are controlled to swing up and down in the vertical direction through the flexible fluctuating motion driving device, and then the multiple unit pieces are controlled to conduct flexible fluctuating motion in a wave shape. The wave-beat integrated propelling flexible fin propelling device is arranged at the power output end of the flapping motion driving device, the whole wave-beat integrated propelling flexible fin propelling device is controlled by the flapping motion driving device to swing up and down in the vertical direction, and therefore flapping motion is achieved. The multi-modal propulsion integrating fluctuation and flapping can be realized, and three-dimensional high maneuverability and low disturbance are realized.

The invention relates to the technical field of bionic robots, and particularly discloses a dielectric elastomer-based decapterus maruadsi-imitated robotic fish and a preparation and control method thereof, the dielectric elastomer-based decapterus maruadsi-imitated robotic fish comprises a robotic fish head, a driving unit, a tail fin, a buoy, a balancing weight and a connecting piece; the driving unit is composed of two bending drivers and an electrode, the end, in a bending state, of each bending driver is fixedly connected with one end of the connecting piece to form a fish fin, and the non-bending parts of the bending drivers are bonded and fixed to form a fish body; the robotic fish head is fixedly connected with the other end of the connecting piece, and the tail fin is pasted and fixed at one end of the fish body; the buoy is fixed to the upper portion of the head of the robotic fish, and the balancing weight is fixed to the lower portion of the head of the robotic fish. The dielectric elastomer-based decapterus-imitating robotic fish provided by the invention adopts the dielectric elastomer to manufacture the bending driver, can better simulate fish swimming, adapts to a complex underwater environment, and effectively improves the working efficiency.

The invention relates to the technical field of image enhancement, in particular to a turbid water fish image enhancement system based on image enhancement, which comprises an attenuation feature layering module used for acquiring a turbid water fish image, extracting a color attenuation value and a local contrast value of each pixel point, and outputting the color attenuation value and the local contrast value; and calculating the pixel attenuation degree influenced by the suspended matters in the water body and the background scattered light to obtain a pixel attenuation distribution diagram, and setting a plurality of attenuation thresholds. According to the method, a turbid image is divided into a plurality of layers such as a foreground, a middle scene and a background by calculating a color attenuation value and a local contrast ratio of each pixel influenced by suspended matters in a water body and scattered light, and then differential gain coefficients are applied to extracted initial details such as fish scale and fin textures according to the layers to carry out injection; high-fidelity enhancement of a key foreground target is realized, and excessive sharpening and noise amplification of a background area are avoided.

The utility model discloses an automatic slicer for fish products, relates to the technical field of automatic processing equipment for the fish products, and aims to improve the automatic production efficiency of the fish products. The automatic slicing machine for the fish products comprises a fish feeding mechanism, a fish clamping device, a slicing mechanism and an electric control system, and the fish feeding mechanism is used for conveying the fish products to be processed to the fish clamping device and the slicing mechanism; the fish clamping device is used for fixing fish products and tidying fish fins; the slicing mechanism is used for separating bones and meat of fish products, and the electric control system is connected with the fish feeding mechanism, the fish clamping device and a driving mechanism of the slicing mechanism, so that the process automation of automatic feeding, automatic clamping and fin arrangement and automatic slicing is realized, the production efficiency is greatly improved, the labor intensity is reduced, and the production cost is reduced. The defects that original manual slicing is high in labor intensity and unstable in quality are overcome.

The invention discloses a live fish photographing device convenient for displaying fish morphological characteristics, the live fish photographing device comprises a photographing box and a pulse generator, the pulse generator is connected with an anode strip and a cathode strip, the anode strip and the cathode strip are arranged in the photographing box and are oppositely arranged, and a live fish to be photographed is placed between the anode strip and the cathode strip. The photographing box comprises a bottom plate, a background plate, a left side plate and a right side plate which are vertically arranged on the bottom plate, and a transparent observation photographing plate which is obliquely arranged on the bottom plate at a certain angle. The photographing box is connected with a circulating water pipe, and a water outlet of the circulating water pipe is located at the position of the anode plate, so that water flows from the anode plate to the cathode plate; and a circulating water pump and a filter are arranged on the circulating water pipe. Under the dual action of pulse stimulation and water flow, the fish can be kept in a posture of swimming towards the anode strip, and the fins can be fully unfolded, so that the morphological characteristics of the fish can be conveniently shot out. The device can be widely applied to the fish sample collection field.

The invention discloses a bionic robotic fish capable of underwater sampling, and relates to the technical field of underwater sampling, the bionic robotic fish comprises a bionic robotic fish body, the bionic robotic fish body comprises a fish fin plate, a propeller and an image collector, the image collector is arranged at the front end of the bionic robotic fish body, and an operation cavity is formed in the bionic robotic fish body; a buffer assembly is arranged in the operation cavity and comprises two first springs symmetrically and fixedly connected to the interior of the operation cavity. The descending of the bionic robotic fish body can be buffered through the compressed first spring, the impact on underwater sandstones after the bionic robotic fish body descends can be reduced, in addition, the contact range of the bionic robotic fish body and the underwater sandstones can be reduced by inserting the contact block into the sandstones, the sandstone diffusion can be reduced, and the service life of the bionic robotic fish body is prolonged. The influence of the diffused sand on the image acquisition of the image acquisition device is avoided, and the acquisition efficiency of the image acquisition device is improved.

The invention provides a flexible capacitive pressure sensor based on a bionic fin structure. The sensor comprises an upper electrode, a lower electrode and an elastic supporting piece located between the upper electrode and the lower electrode. The elastic supporting piece comprises an upper platform, a lower platform and a plurality of bionic fin structural pieces located between the upper platform and the lower platform. The bionic fin structural member comprises an upper plane part, a lower plane part, an annular part with an opening in one side and an arc-shaped part with two arcs overlapped in a 3 shape. The upper side and the lower side, without the opening, of the annular part are connected with the upper plane part and the lower plane part correspondingly. The arc-shaped part is located in the annular part, and the two ends of the arc-shaped part are connected with the two ends of the opening of the annular part correspondingly. According to the bionic microstructure, the Young modulus of the dielectric layer is effectively reduced, the pressure response sensitivity and speed are improved, meanwhile, good structural stability and array expansibility are achieved, and the application requirement of a multi-scene intelligent interaction system is met.

The utility model discloses a bionic robotic fish power simulation fin swing mechanism which comprises an installation frame, a waterproof shell is fixed on one side of the installation frame, a first sealing ring is arranged below the waterproof shell, a motor is installed in the waterproof shell, an output shaft is installed below the motor, and a second sealing ring is arranged below the output shaft. A gear shell is fixed below the mounting frame; according to the power simulation fin swinging mechanism of the bionic robotic fish, through cooperative use of the waterproof shell, the first sealing ring, the output shaft, the gear shell and the second sealing ring, when the device is used, the motor, the first gear and the second gear can be prevented from being in direct contact with water through arrangement of the waterproof shell and the gear shell; all parts can be stably used in water and cannot be eroded or damaged by water, meanwhile, water can be prevented from permeating from gaps in the outer side of the output shaft through mutual cooperation of the first sealing ring and the second sealing ring, and the sealing performance is good.

A bionic fin type maritime work structure foundation diversion anti-scouring protective belt is composed of an integral framework, a broken stone filling area and a framework outer covering layer. The whole framework is divided into a main framework and a subordinate framework; a broken stone filling area is arranged between the main framework and the auxiliary framework; the skeleton outer skin layer covers the gravel filling area and is fixed to the upper portion of the overall skeleton. The cutting effect of the bionic fins on ocean currents is used for reference, the soil body impact cutting influence caused by interaction between the exposed part of the marine structure suction force foundation and the ocean currents is reduced, and it is guaranteed that the marine structure foundation meets the bearing capacity requirement in the service period.

The utility model relates to the technical field of water conservancy and hydrological survey, and discloses an electromagnetic lead fish flow velocity meter, which comprises an electromagnetic lead fish flow velocity meter head, an electromagnetic lead fish flow velocity meter tail is fixedly arranged on the rear surface of the electromagnetic lead fish flow velocity meter head, and a first hanging point is arranged on the outer surface of the electromagnetic lead fish flow velocity meter head, a speed measuring mechanism is arranged on the tail portion of the electromagnetic lead fish flow velocity meter, a shell of the lead fish is made of stainless steel 304 materials in a finish machining mode, the lead fish flow velocity meter can be soaked in various fluids for a long time and is stable in physical and chemical performance, the appearance is designed in combination with fluid mechanics, a fish body is an arc-shaped smooth curved surface, and simulation fins and empennages are designed in the middle of the fish body. The top of the fish body is provided with two balance lifting points, the fish body can be kept balanced and stable in a water body after being lifted by a measuring rope, and the device is wide in application drainage basin, convenient to install and use and capable of being used and measured at any time, and boundary layer separation and tail end vortexes which influence measurement are not generated by streamlines when liquid flows through the surface of the lead fish.

The underwater robot comprises a shell assembly, a supporting assembly and a sealed cabin, and a containing space is formed in the shell assembly; the supporting assembly is supported in the accommodating space; the sealed cabin body is fixedly connected into the supporting assembly, and a plurality of connecting interfaces are formed in one end of the sealed cabin body; wherein the shell assembly comprises a first shell and a second shell, the first shell is provided with a fish fin part, the second shell is provided with a fish tail part, the containing space is formed in the first shell, the second shell is detachably connected to one end of the first shell, and the second shell and the multiple connecting interfaces are oppositely arranged. By arranging the fin part on the first shell and arranging the fish tail part on the second shell, the shell assembly formed after the first shell and the second shell are connected has a bionic design, and the bionic design has the effect of reducing scare on aquatic organisms and can also provide a stabilizing effect at the same time. In addition, the shell assembly is in a streamline design, so that the motion performance of the underwater robot is improved.

The invention discloses an anchoring-agent-free fin type roadway surrounding rock fast-assembly anchor rod and a construction method, and relates to the technical field of coal mine underground roadway tunneling and safe mining. The quick-mounting anchor rod comprises an anchoring-agent-free fin type quick-mounting anchor rod body, a fin mounting groove, anchor rod fins, a telescopic rotating shaft, an anchor rod tray and a pre-tightening nut. The construction method comprises the steps that drilling is conducted, the fin type anchor rod is installed in a roadway rock mass, an anchoring agent does not need to serve as an end fixing material, the fin type anchor rod and drilling surrounding rock can form an organic whole only through a fin mechanical structure of the fin type anchor rod, and therefore the purpose of anchoring of the anchor rod without the anchoring agent is achieved. The purpose of pre-tightening the anchor rod is achieved by applying torque to the nut end through the anchor rod fins on the inner side of the anchor rod, the anchor rod tray on the outer side of the anchor rod and the pre-tightening nut, the intelligent mine roadway tunneling efficiency is effectively improved, the mine roadway tunneling speed is increased, and the method has important significance on unmanned and intelligent mine roadway tunneling.

The utility model discloses a water treatment filter material performance contrast experiment device which comprises a water tank and a water inlet pipe, experiment liquid is pumped into the water tank through the water inlet pipe, the water tank is arranged in an inclined mode, a notch is formed in the bottom of the water tank, and fin grooves are formed in the outer side of the lower end of the water tank. The fin groove comprises a flow guide part opposite to the notch and a storage part mounted at the side lower end of the flow guide part, the flow guide part and the storage part form a containing chamber for containing a filter material, the side, away from the flow guide part, of the storage part is rotationally connected with the lower end of the water tank, and the flow guide part is in a fin shape. According to the utility model, relevant operation in a laboratory is facilitated, and the experiment efficiency is further improved.

This invention discloses a specific DNA fragment, primers, and applications for sex identification of the longfin sclerotium. PCR amplification and agarose gel electrophoresis were performed using PCR primers. The results showed that individuals with a specific 271bp band were male, while those without a band were female. This invention discloses a molecular marker, primers, and identification method for sexing the longfin sclerotium. Sexing can be determined by taking fin rays without killing the fish; it can also identify the sex of juvenile fish whose sex cannot be determined by appearance. It has advantages such as accuracy, simplicity, speed, and minimal harm to the fish, providing important assistance for the conservation of wild longfin sclerotium resources and the development of the aquaculture industry.

The invention provides an inflatable paddle board which solves the technical problems that fins of an existing paddle board adopt a detachable connection mode, the fins and the paddle board are divided into two parts after being stored, and the situation that the fins are omitted and forgotten to be installed can occur during use and storage, and the inflatable paddle board can be widely applied to the field of surfing paddle boards. The device specifically comprises an inflatable paddle board, an inflation inlet is formed in the inflatable paddle board, a fin is arranged at the tail of the bottom face of the inflatable paddle board, the joint of the fin and the inflatable paddle board is integrally formed, and the fin is of a deformable flexible structure; boundary ribs are arranged on the frame of the fin, reinforcing ribs are arranged in the boundary ribs, the boundary ribs are made of deformable hard materials, and the reinforcing ribs are made of non-deformable hard materials; the boundary rib is composed of a first fixed rib, a second fixed rib, a first movable rib and a second movable rib which can define a fin shape, and the first fixed rib and the second fixed rib are each provided with a folding and unfolding sliding groove.

The invention provides a fish body state nondestructive testing method and device based on multi-modal data, and belongs to the technical field of aquaculture fish state monitoring. The device comprises a fixed bracket, a flexible main control unit and an optical detection unit, connection and position constraint are carried out through the flexible carrier plate, the signal line and the flexible ring. The fixing support is fixed to a fish bone on the near side of a fin in a lossless mode in a clamping mode, and the whole device controls data collection, storage and transmission through the flexible main control unit. The invention further discloses a nondestructive testing method. The nondestructive testing method comprises the following steps: collecting signals; collecting a combined optical signal, a kinematics signal and environmental data; performing pretreatment; motion correction is carried out, motion artifacts in optical signals are eliminated through kinematics signals in combination with a specific algorithm, and the signals are reconstructed; finally, state discrimination is achieved, and fish state discrimination is achieved on the basis of multi-modal data and an expert knowledge base.

The utility model belongs to the technical field of surfboard fin bases, and particularly relates to a foldable surfboard fin base which comprises a first base and a second base, a thin film hinge is fixedly connected to the joint of the lower portion of the first base and the lower portion of the second base, and a first limiting shell is fixedly connected to the top of the first base. The top of the second base is fixedly connected with a second limiting shell, and fish fins are placed in the second limiting shell and the first limiting shell. By arranging the first base, the second base and the film hinge, the first base and the second base can rotate relatively under the action of the film hinge, so that the base can be folded, the occupied space of the base is reduced, and the base is convenient to carry and store; and by arranging the first limiting shell and the second limiting shell, the fins can be replaced.

The present invention provides a bionic manta ray robot based on a sinusoidal oscillating wave fin structure, comprising: a body unit; a fin unit, comprising two wave fin assemblies respectively connected to both sides of a main body plate; a sinking and floating unit, located in the shell and installed above the main body plate, the sinking and floating unit comprising a center of gravity adjustment mechanism and a first driving device driving the center of gravity adjustment mechanism to operate; wherein the wave fin assembly comprises a plurality of second driving devices, a plurality of flexible rods and a flexible skeleton, the plurality of second driving devices are installed at intervals along the direction from the head end to the tail end of the shell, and the plurality of flexible rods are respectively connected to the plurality of second driving devices. The present invention moves by means of the propulsion force generated by the wave fin assembly, and controls the sinking and floating of the present invention by the sinking and floating unit, so that the present invention has the advantages of high movement efficiency, good maneuverability, strong stability and anti-interference ability, and low environmental disturbance, and can complete underwater detection, underwater shooting and other tasks at a low speed.

The invention relates to bait with artificial beards and a forming mold thereof, and relates to the technical field of bait design, the bait comprises a fishhook, the fishhook is installed at the end of a connecting rod, a bottom limiting column is fixed to the connecting rod, simulation sliding columns are arranged on the bottom limiting column in an array mode, and the size of the simulation sliding columns is smaller than that of the bottom limiting column; limiting mechanisms are arranged on the simulation sliding columns in a simulation sliding mode, and simulation beards are arranged on the limiting mechanisms. Through cooperation of the unique limiting mechanism and the simulation sliding column, when bait is under the action of water flow or controlled by a fishing line, the limiting mechanism can drive the simulation sliding column to slide on the sliding column in a reciprocating mode. The continuous and autonomous local movement can extremely realistically simulate the swinging posture of the fins when the small fish swims, the fish luring effect is greatly enhanced, and the problem that the fish luring action disappears when the main body of the traditional artificial bait is static is effectively solved.

The utility model discloses an island ecological environment monitoring platform, and relates to the technical field of environmental protection. The signal antenna comprises a combination part of a spherical structure, and the combination part is movably arranged in a first mounting groove formed in the axis of the top end face of the floating ball body; the anti-overturning assembly comprises a fin part, a colloid elastic rod body connected with the fin part and a cylindrical balancing weight arranged at the end part of the colloid elastic rod body; the number of the water quality detectors is not less than four, the water quality detectors are arranged on the cylindrical balancing weight in a circumferential array mode, and the detection ends of the water quality detectors are located on the outer side of the cylindrical balancing weight. The device for detecting the quality of fresh water is composed of the small-size integrated floating ball body, the signal antenna and the water quality detector, so that water quality detection data is transmitted to the outside in real time through the signal antenna.

The utility model discloses a junction box, which comprises a box cover, a bottom plate, a diode, a terminal assembly and a cable, the diode is arranged on the bottom plate; the box cover is buckled on the bottom plate, the windward side of the box cover is in a fin shape, and the leeward side of the box cover is provided with a wiring hole; the terminal assembly is arranged in the wiring hole; the cable is arranged in the terminal assembly in a penetrating mode and extends into the box cover, and the inner end of the cable is connected with the diode. The junction box comprises a box cover and a bottom plate, the box cover is buckled on the bottom plate, the windward side of the box cover is in a fin shape, the box cover is provided with a smoother curved surface and has a lower wind resistance coefficient, and wind resistance generated by loading and driving is reduced.

The present invention discloses a bionic robot fish capable of underwater sampling, and relates to the technical field of underwater sampling, including a bionic robot fish body, the bionic robot fish body including a fin plate, a propeller and an image collector, the image collector being arranged at the front end of the bionic robot fish body, an operating cavity being provided inside the bionic robot fish body, a buffer component being arranged inside the operating cavity, and the buffer component including two groups of first springs symmetrically fixedly connected inside the operating cavity. The descent of the bionic robot fish body can be buffered by the compressed first spring, wherein the impact of the bionic robot fish body on the bottom sand and gravel after the descent can be reduced, and in addition, the contact range between the bionic robot fish body and the bottom sand and gravel can be reduced by inserting a contact block into the sand and gravel, thereby reducing the diffusion of sand and gravel, avoiding the influence of the diffused sand and gravel on the image acquisition of the image collector, and improving the acquisition efficiency of the image collector.

The present invention provides an active desorption gripper-type climbing robot based on nano-micro-adhesive and a grasping, desorption and climbing method. The robot comprises a trunk and two detachable active desorption grippers with a fish-fin-like structure. The two grippers are a first gripper and a second gripper, and both the first gripper and the second gripper have active desorption, adaptive grasping and adhesion functions. The trunk comprises a first drive mechanism, a second drive mechanism and a third drive mechanism. Based on this structure, the fixed connection method between the outer crossbeam and the longitudinal beam of the adaptive gripper is changed to a magnetic adsorption connection method, thereby realizing adaptive adhesion / grasping and active desorption functions. In combination with the trunk, autonomous climbing motion is realized. In addition, the climbing robot can "perch" on any object or the body of another climbing robot, complete the mobile grasping motion after "perching", expand the overall robot's range of motion and usage scenarios, and improve the robot's adaptability on different platforms.

The invention relates to a large-scale marking method for released small-specification fries based on fin ray strontium marking, which comprises the following steps of: in a fish fry breeding stage, performing strontium marking on the small-specification fries for several hours by increasing the concentration of strontium ions in seawater in a breeding pool, so that fish fin rays form a'high-strontium marking ring '; and after the marked fish is recaptured, cutting fin rays of the marked fish to detect the content of the strontium element. The method does not depend on otolith, is factory-like, is low in marking cost, and does not cause lethal injury to fishes during sampling.

The utility model relates to the technical field of bionic fishes, and discloses a bionic fish, which is characterized in that a first driving component is arranged on a mounting frame, a second driving component is arranged on the mounting frame and below the first driving component, and mounting components are mounted at two ends of the first driving component and the second driving component; two bionic fish fins and two bionic fish tails are respectively mounted on the three mounting assemblies; according to the bionic fish body, the inserting columns at the two ends of the mounting base are pulled at the same time, so that the inserting columns move in the inserting grooves, at the moment, the tension spring is in a stretched state, meanwhile, one end of each inserting column is separated from the interior of the limiting groove, the bionic fish tail or the bionic fish fin can be replaced, operation is easy and fast, the bionic fish body is convenient to maintain, and maintenance is more convenient. Meanwhile, tools are not needed, and time and labor are saved; meanwhile, through the first driving assembly and the second driving assembly, swimming, floating and diving of the bionic fish body in water can be completed, the structure is simple, and bionic simulation of fish body swimming is achieved.

The application relates to a hybrid drive control method of a cross-medium robot and the cross-medium robot. The hybrid drive control method of the cross-medium robot comprises the following steps: calculating the vibration head motor power, unfolding the fish fin component in the swimming state, and swinging the peristaltic component; obtaining the current value of the vibration head current loop, judging whether the robot head contacts sand or not, if not, the robot keeps the swimming state, if yes, controlling the driving force of the robot vibration head, switching the robot to the peristaltic state, folding the fish fin component, and peristaltic movement of the peristaltic component. The cross-medium robot comprises a vibration component, a fish fin component and a peristaltic component, has two hybrid drive modes of fish fin swing and tail spiral and vibration head vibration and tail spiral, forms the peristaltic movement and swimming movement states, ensures that the robot can pass through seawater and sand on the seabed, enhances the concealment of the robot on the seabed, the control method has low calculation amount, the cross-medium robot has low cost, and the hybrid drive switching process is fast.

The utility model discloses a fish-shaped toy boat which comprises a fish-shaped boat body and a marching driving device, the fish-shaped boat body is provided with an inner cavity, and the marching driving device is installed in the inner cavity of the fish-shaped boat body. The fish-shaped ship is characterized by further comprising a steering mechanism and two pelvic fins, and the two pelvic fins are rotationally arranged on the left side and the right side of the fish-shaped ship body respectively; the steering mechanism comprises a first steering driving device and a first linkage mechanism capable of driving at least one pelvic fin to rotate, the first steering driving device is installed in an inner cavity of the fish-shaped ship body, and the first linkage mechanism is in transmission connection with the power output end of the first steering driving device. The fish toy boat can simulate the fish to use the fins to control steering when the fish swims in water, and is simple in structure and convenient to adjust and control.

The invention discloses a large-size hard, brittle and thin wafer abrasive particle track controllable grinding method and device. The large-size hard, brittle and thin wafer abrasive particle track controllable grinding device comprises a bionic fin-shaped texture grinding tool head and a piezoelectric ceramic ultrasonic body. A large number of fin-shaped micro texture units and crossed micro channels are arranged on the periphery of the texture surface of the tool head, and the central part is a smooth plane. During ultrasonic high-frequency vibration, the fin-shaped texture structure of the outer ring drives fluid to form vortex-shaped fluid, and abrasive particle track regulation and enrichment are achieved; cavitation bubbles are generated in the center and impact to remove the material after collapse; and the crossed micro-channels can promote the circulation of the grinding fluid and discharge grinding dust. According to the method, the abrasive particle track is precisely restrained through the fin-shaped textures, the abrasive particles are driven to be enriched and impact the surface of the wafer, and the material removal efficiency and the grinding precision are remarkably improved while the machining damage and fragment risks of the large-size thin wafer are reduced.

1. Name of the designed product: swimming cap (fish fin). 2. Use of the designed product: for swimming aids. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.