179 results about "Tooth root" patented technology

The invention relates to the technical field of digital medical treatment, and discloses a dental three-dimensional identification and model generation method based on CBCT and deep learning, and the method comprises the steps: carrying out the preprocessing of obtained CBCT image data; the preprocessed CBCT image data is segmented, and the segmentation step comprises the substeps that a tooth three-dimensional model, an alveolar bone three-dimensional model and a mandibular neural tube three-dimensional model are obtained by adopting a two-stage cascade deep learning network; based on the tooth three-dimensional model and the alveolar bone three-dimensional model, obtaining a periodontal membrane three-dimensional model through geometric and Boolean operation; a tooth root area in the tooth three-dimensional model is positioned, and a self-adaptive threshold method is adopted for CBCT image data corresponding to the tooth root area, and a root canal three-dimensional model is recognized and generated; based on at least one of the obtained three-dimensional models, a personalized clinical application model is generated, high-precision automatic segmentation of the dental complex anatomical structure is achieved, and a reliable digital model basis is provided for personalized precision medical treatment.

The invention discloses a method for calculating the strength of an end face tooth coupling of an energy storage centrifugal compressor, relates to a method for calculating the strength of an end face tooth coupling, and aims to solve the problem that a method for accurately judging whether the strength of the end face tooth coupling of the compressor is qualified or not by a conventional end face tooth calculation and checking method does not exist at present. The method is implemented according to the following steps that firstly, axial component force generated when the end face teeth transmit torque is obtained; 2, the axial expansion difference of the end face teeth, the main shaft and the screw at the working temperature is calculated, and the actual pre-tightening force of the screw during unit operation is calculated; 3, impeller thrust generated by the front and back pressure difference of the impeller is calculated, the effective tooth surface area of the end face teeth is calculated, and the end face tooth root bending stress, the end face tooth maximum extrusion stress and the end face tooth axial tensioning force safety coefficient of the centrifugal compressor are calculated; and 4, judging the strength of the end face tooth coupling of the energy storage centrifugal compressor. The invention belongs to the field of end face tooth coupling checking.

The invention relates to an orthodontic tooth division accurate measurement method and system based on digital scanning, and the method comprises the steps: collecting the initial three-dimensional scanning data of teeth of a patient, and obtaining the dynamic change data of the teeth; performing association mapping processing on the tooth dynamic change data to obtain a tooth space position file; based on the tooth space position file, adopting an iterative comparison algorithm to be matched with subsequent scanning data, and judging deviation values of tooth gap width and tooth root inclination in an orthodontic process; the deviation value is analyzed, and real-time dental arch curve adjustment parameters are obtained; based on the real-time dental arch curve adjustment parameters, determining an optimization direction of an individualized tooth division scheme; and performing feedback circulation on the overall tooth space position file by adopting the optimization direction to obtain a final dynamic integration measurement result. According to the invention, through fusion of deep learning and time sequence analysis, accurate tracking of dynamic changes of teeth is realized.

The invention discloses a design and preparation method of a personalized gradient thickness invisible orthodontic appliance model, relates to the technical field of tooth orthodontics, and aims to overcome the defects that the thickness is uncontrollable and preset mechanical properties cannot be accurately realized when an invisible orthodontic appliance is manufactured by a traditional hot press molding process. The method comprises the following steps: firstly, reconstructing a personalized dental model containing tooth roots and bone tissues based on CBCT data of a patient; designing a plurality of gradient thickness appliance schemes; through finite element analysis and simulation, selecting an optimal scheme which is most favorable for realizing correction effects such as overall movement of teeth; and finally, integrally forming and manufacturing the selected appliance by adopting a direct 3D printing technology. The direct 3D printing ensures that the appliance can be manufactured in a high-precision and high-fidelity manner from a complex gradient thickness structure with thick gingiva and thin occlusal surface, so that the optimized mechanical property verified by simulation can accurately reproduce in a real object, the inherent defects of a hot-pressing film process are thoroughly overcome, and the accuracy and predictability of correction are remarkably improved.

The invention provides a bionic stubble cutting knife, a bionic stubble cutting knife device and a design method, and relates to the technical field of agricultural machinery, the bionic stubble cutting knife comprises a knife disc base body and a plurality of knife teeth uniformly distributed along the circumference of the knife disc base body in the same direction, each knife tooth comprises a main cutting edge, a tooth tip, a knife back and a tooth root reinforcing rib which are connected in sequence, and the angle of the main cutting edge imitates the upper jaw of a earwig. The outer contour curve of the cutter tooth is formed by sequentially connecting a main cutting edge curve, a tooth top curve, a cutter back curve and a tooth root reinforcing rib curve in a transition mode, and the connecting points of the curves are tangent. The bionic stubble cutting knife device comprises a bionic stubble cutting knife, a connecting structure, a vibration reduction structure, a connecting spring and a driving device, and the vibration reduction structure adopts a two-stage composite vibration reduction system. Through a bionic cutting structure, a two-stage vibration reduction system and a flexible adaptive design, cooperation of efficient cutting, stable operation, cost reduction, efficiency improvement and environmental protection is achieved, a better solution is provided for agricultural stubble cutting operation, and technological upgrading of agricultural machinery equipment is promoted.

The present application relates to gear processing forging equipment technical field, specifically a kind of temperature monitoring function's gear processing is forged device, and the forging device includes first forging machine, second forging machine, manipulator, test table, first forging machine is processed into intermediate body by hollow cylindrical raw material block, second forging machine is placed in first forging machine side, second forging machine is processed into gear-shaped forming body by intermediate body, test table is placed in second forging machine side, test table tests the tooth root toughness in the meshing process of forming body, manipulator is set between first forging machine, second forging machine, test table for transferring workpiece.Raw material block is heated to forging point using resistance heating mode, resistance heating electrode is set in first forging machine and second forging machine, first forging machine and second forging machine are with infrared probe to identify the temperature of raw material block and intermediate body in heating process.After obtaining intermediate body, the outer edge of heated intermediate body, so that the material that becomes tooth surface finally in second forging process is based on the material of original outer edge.

The removable anti-loosening false tooth comprises a false tooth main body, a tooth root connecting block is arranged at the bottom of the false tooth main body through a connecting groove with internal threads, and a tooth root sleeve for performing outer protection positioning on the tooth root connecting block is arranged at a bottom port of the connecting groove and located at the bottom of the false tooth main body; through the false tooth main body, the connecting groove, the tooth root connecting block, the tooth root main body and the threaded connecting part, the false tooth main body is fixed on the threaded connecting part on the tooth root connecting block through threads of the connecting groove for connection and fixation, so that the false tooth main body and the tooth root connecting block can be quickly fixed, and the tooth root sheath is positioned and sleeved outside the tooth root connecting block for protection; according to the structural connection mode, the false tooth main body only needs to be screwed to be separated from the tooth root connecting block in the picking and replacing process, so that the worn false tooth main body can be conveniently picked and replaced, and the problem of gingival injury caused by picking and replacing by virtue of a tool is avoided.

The application discloses a high-bearing low-noise special gear precision machining process, which comprises the following steps: precision die forging and isothermal normalizing, double-reference composite finish turning, self-adaptive roll-scrub composite near-net forming, segmented and partial-pressure gradient carburizing and quenching, deep cryogenic graded aging, reference reconstruction flexible honing polishing, pulse laser shock strengthening, tooth root fillet roll strengthening, full-parameter precision detection, hierarchical selection and micro-correction. The application solves the problems of large deformation, low precision, poor fatigue and high noise in traditional processes through the synergistic control of forming-stress-precision-surface morphology, and the special tooth profile is stably up to DIN 4-5 level, the tooth surface is Ra≤0.2 microns, the fatigue life is increased by more than 60%, and the noise is reduced by 6-10 dB. The process combination is not obvious and has outstanding creativity, and is suitable for high-precision batch manufacturing of special gears of high-end equipment such as new energy vehicles and high-speed heavy-duty transmission.

The present application relates to the field of medical informatics, and provides a tooth abnormal vibration signal detection system, comprising: an arc-shaped base body; a plurality of arc-shaped base body vibration sensors embedded in the arc-shaped base body, each arc-shaped base body vibration sensor corresponding to one of two sides of a predetermined implant implantation position of a user and being adjacent to a tooth, for real-time sensing of an external mechanical vibration signal acting on the arc-shaped base body and the two sides of the tooth; a bone conduction vibration sensor for sensing a bone conduction vibration signal conducted to the predetermined implant screw base through the jaw bone of the user; and a signal processing module for receiving the external mechanical vibration signal and the bone conduction vibration signal respectively, performing frequency domain conversion, calculating the similarity of first and second frequency spectrum characteristics, and outputting a same frequency judgment result. The present application improves the real-time detection accuracy of implant nail and tooth root collision, and improves the implant success rate and safety.

The invention discloses a cycloidal gear tooth profile three-section modification method. The cycloidal gear tooth profile is divided into a tooth root section, a meshing area section and a tooth top section; according to the thickness of the lubricating oil film, the modification gap at the tooth root is obtained, and according to the contact deformation at the tooth crest, the modification gap at the tooth crest is obtained; and by taking the return difference and the minimum contact stress in the dynamic transmission chain precision interval as boundary conditions, the modification clearance of the meshing area is obtained, the modification clearances at the tooth root, the meshing area and the tooth top are combined, and the tooth profile of the cycloidal gear is obtained according to the modification clearance curve. Different modification gaps can be designed according to different return differences and dynamic transmission chain precision intervals. A cycloidal gear tooth profile with controllable return difference and dynamic transmission chain precision and minimum contact stress when lubrication and stable and uniform meshing of a gear pair are considered can be obtained; the method is a modification method with higher precision.

This invention discloses a gear mold, an in-cavity sensing structure, a measurement system, and a measurement method. The gear mold includes at least one mold wall constituting the gear mold cavity. The in-cavity sensing structure includes a temperature sensing component and a pressure sensing component. The temperature sensing component includes at least a plurality of probes arranged in an array along key cavity positions. The key cavity positions include at least two of the gear's tooth tip forming area, tooth root forming area, and gate area. The pressure sensing component includes at least a plurality of ejector pins arranged in an array below the gear mold cavity. One end of each ejector pin abuts against a pressure sensing element. The probes are electrically connected via lead wires passing through the mold wall, and the pressure sensing element is electrically connected via a lead wire storage portion pre-embedded in the gear mold. Through an integrated sensing array layout deeply coupled with the gear mold structure, synchronous, direct, and in-situ monitoring of multi-point temperature and distributed pressure within the cavity during the precision gear injection molding process is achieved.

The utility model discloses an anti-shaking dental implant replacement body mold, and relates to the technical field of dental implant replacement body molds. The tooth comprises a tooth root, one end of the tooth root is provided with a restraining groove, the inner end face of the restraining groove is provided with a locking threaded hole, a guide block is installed in the restraining groove in a sliding mode, a tooth body is installed above the guide block in a sliding mode, a movable hole is formed in the center of the interior of the tooth body, and a protruding block is fixedly installed in the movable hole and is a circular ring. The tooth root is planted in the gingiva, then the guide block is installed in the restraining groove, the clamping groove is restrained by extruding the side face of the clamping groove through the extruding block, then the tooth body is installed above the guide block, and the bolt penetrates through the guide block and the locking threaded hole to be tightened. The guide block and the tooth body are restrained through the bolt, and the movable hole is filled with the filling material, so that shaking of the tooth body in the using process is reduced, and the service life is prolonged.

Embodiments of the present application disclose a method and device for extracting root canal feature morphology based on CBCT data, equipment and medium, belong to the field of oral medicine and medical image technology, wherein the method comprises: filtering and denoising CBCT images and performing pulp segmentation processing, and performing surface rendering three-dimensional reconstruction on tooth root canals to generate a three-dimensional model; based on the regular point cloud data in the three-dimensional model, a point-surface method is used to realize surface reconstruction to generate a root canal entity model; the root canal entity model is subjected to coordinate alignment processing in a three-dimensional space, and the approximate center line of the fitted root canal is used to measure the root canal length, root canal opening direction, root canal curvature and pulp depth. The present application quickly reconstructs the corresponding three-dimensional model based on the CBCT tomographic images obtained by scanning the teeth of a patient, and obtains relevant data such as pulp depth and root canal opening size from the three-dimensional model of the teeth to assist the performance of oral surgery.

This invention discloses a continuous induction hardening device for sprockets, belonging to the field of hardening technology. It includes a hardening frame filled with coolant; a hardening section installed inside the hardening frame for induction heating of the sprocket; and a loading section installed at the bottom of the hardening frame for picking up and feeding the sprocket. In this device, the induction coil is curved to match the arc-shaped tooth profile of the sprocket. The upper and lower effective heating sections correspond to the upper and lower tooth roots, respectively. The heat source preferentially acts on the thicker part of the tooth root, ensuring sufficient heat input. Simultaneously, a rotary motor drives the sprocket to rotate. For sprockets with greater thickness, a side coil can be added to assist in heating the tooth sides, avoiding the problem of overheating in the main heating zone and insufficient heating of the side walls. This improves upon existing circular induction coils where the tooth tip heating rate is much faster than the tooth root during hardening, effectively reducing the risk of hardening cracks caused by the significant difference in heating rates and improving the quality of the finished sprocket.

The embodiment of the application relates to the technical field of tooth correction, in particular to an automatic tooth arrangement method and device based on point cloud understanding, equipment and medium, the method comprises the following steps: acquiring tooth point cloud based on cone beam computed tomography image; the tooth point cloud comprises three-dimensional point cloud data of complete teeth containing tooth roots; tooth features are extracted based on tooth point cloud data and a graph convolution network of an attention mechanism; the tooth features comprise a global feature vector of a dentition and a local feature vector of the teeth; the tooth features are aggregated and updated based on a dynamic graph recommendation method to obtain a pose prediction result; the pose prediction result is optimized based on the aggregated and updated tooth features and an iterative optimization method to obtain a target pose result. The automatic tooth arrangement method based on point cloud understanding can automatically calculate corresponding target poses according to original dentitions of patients with malocclusion, and the accuracy of automatic tooth arrangement results is improved.

The invention discloses a crown cutting and traction integrated tool for impacted teeth with inferior alveolar nerve injury risk, which utilizes a telescopic part made of a hydrogel material, has reversible performance of water absorption expansion and dehydration contraction, can realize micro-amplitude reciprocating deformation under the natural water environment change of an oral cavity or humidity control adjustment, and can be used for preventing and treating the impacted teeth with the inferior alveolar nerve injury risk. Therefore, slight stress stimulation in alternating directions is continuously applied to impacted teeth after traction is completed, periodontal ligament activity and an open state of a traction channel are maintained through reciprocating small force action, bridging hard connection between tooth roots and bone tissues is effectively prevented, initial resistance of second-time traction is remarkably reduced, and the secondary traction effect of the impacted teeth is improved. The operation risk of breaking through adhesion tissues again in clinic is reduced, the postoperative nerve traction complications and the tooth root absorption probability are further reduced, and the safety and efficiency of the whole treatment process are improved.

The application belongs to the technical field of archwire correction, and provides a nickel-titanium alloy archwire with high elasticity and precise root control and a preparation method thereof. The nickel-titanium alloy archwire with high elasticity and precise root control comprises an archwire body, the archwire body comprises a nickel-titanium alloy base body, Nb and Zr, and the molar ratio of Ni to Ti in the nickel-titanium alloy base body is 50.8:49.251.2:48.8. The application also provides a preparation method of the nickel-titanium alloy archwire with high elasticity and precise root control. The application solves the core problems that the elasticity and strength of the traditional nickel-titanium alloy archwire are difficult to be considered together and the root control precision is insufficient in orthodontic treatment. The elasticity recovery rate of the archwire is greater than or equal to 98%, the yield strength is increased to 850 MPa-950 MPa, and the archwire has differential surface roughness, which can meet the high elasticity demand in the initial alignment stage of teeth and realize the precise control of the tooth root position in the fine adjustment stage, is suitable for the whole period treatment of oral orthodontics, and has extremely high clinical application value.

The utility model relates to the technical field of stone-plastic plate production, in particular to a stone-plastic plate macromolecule sheet calendering and shaping device which comprises a supporting table, one side of the upper surface of the supporting table is fixedly connected with a support, the inner side of the support is rotationally connected with two calendering rollers, one end of each calendering roller is fixedly connected with a transmission assembly, and the two transmission assemblies are connected in a meshed mode. The transmission assembly comprises a gear, a lubricating grease containing groove is formed in the front end face of the gear, an oil collecting groove and a distribution hole are formed in the tooth root portion of the gear, the distribution hole is located in the middle of the oil collecting groove, a microgroove is formed in the bottom of the tooth surface of the gear, and a protection mechanism is installed on one side of the gear. According to the gear lubricating device, efficient lubrication of the gear is achieved, the problem of uneven lubrication caused by a traditional lubrication mode is solved, the friction coefficient of the gear can be remarkably reduced, abrasion and heat generation are reduced, the transmission efficiency and stability are improved, and the service life of the gear is prolonged.

A ring-tooth roller worm gear rotary table belongs to the field of machinery. Its structure comprises three main components: a worm gear assembly, a worm, and supporting components. The basic assembly relationship is as follows: under the constraint of the supporting components, including the housing and bearings, a worm-driven worm gear transmission relationship is formed. A closed tooth root limiting groove is machined at the root of the worm gear teeth in the worm gear assembly. A tooth flank bearing surface is machined above the tooth root limiting groove. The worm's helical teeth are symmetrically distributed on both sides of the central section, divided into independent left and right helical tooth sections. Torque transmission between the worm gear and worm is achieved through the rolling friction of steel balls. It can be widely used in fields requiring precision and high torque.

A method for determining the optimum relative position of at least one sensor and / or at least one imaging source of an imaging device for at least one intraoral imaging, and for the non-overlapping imaging of at least two tooth root canals. The disclosure also relates to a sensor holder (1) for intraoral imaging including at least one biting device (2) that is insertable into the mouth of a patient, at least one holding device (3) at least indirectly engaged with the biting device (2) for fixing at least one sensor, and at least one centering device (4) for aligning at least one imaging device. The centering device (4) is at least indirectly in operative connection with the biting device (2) via at least one centering device holding portion (5).

The application discloses a pretreatment method for a Neophocaena asiaeorientalis tooth section for micro-chemical analysis, and comprises the following steps: collecting mandibular teeth of a dead Neophocaena asiaeorientalis; cleaning the teeth to remove soft tissues on the surface and inside the tooth root, and drying the cleaned teeth; fixing the teeth on a base made of an epoxy resin block, and fixing the base in a mold; configuring an epoxy resin reagent, embedding the teeth in the epoxy resin; cutting the buccal side and the lingual side of the teeth along the coronal surface by using a low-speed precision cutting machine, so that the central axis of the coronal surface of the teeth is contained in a 3mm-thick section; further grinding and polishing one side of the section, fixing the section on a glass slide; grinding and polishing the other side of the section, and obtaining the section after cleaning and drying. The Neophocaena asiaeorientalis tooth section obtained by the pretreatment method has the advantages of smooth surface, precise polishing, difficulty in breaking and cracking, and maximization of growth axis surface, and can be used for micro-chemical analysis and growth layer group analysis of Neophocaena asiaeorientalis teeth.

The invention belongs to the technical field of laser cladding remanufacturing, and relates to a method for repairing broken tooth damage of a gear. According to the method, firstly, a machining method is adopted, after all areas of broken teeth to be repaired are removed, the broken teeth are continuously cut inwards, and a groove which is provided with a flat and defect-free bottom face and is parallel to the axis of a gear is obtained in a tooth root circle; after gear parameters are collected, a gear base body is preheated, the bottom face serves as a base face, technological parameters are determined, a scanning mode is selected for basic tooth profile cladding, cladding continues after a groove is filled, an approximately-trapezoidal basic tooth profile is obtained, and cladding allowance is reserved on the tooth side face; the relative position posture that a laser head is vertical and the tooth side face is inclined is adopted, gradient composite powder is adopted for tooth side face cladding material increase, a gradient cladding layer is obtained, the cladding allowance reserved for basic tooth profile cladding is supplemented, and the machining allowance of the tooth face is removed; and finish machining and heat treatment are conducted on the repairing layer, the precision and performance of the repaired gear are improved, and the performance of the repaired gear is inspected.

This invention relates to the field of heat treatment technology and discloses a large-size gear heat treatment equipment, including a base with a support at the end of the base. The support has a quenching liquid tank for holding coolant, and the equipment also includes a lifting and adjusting mechanism and a heat treatment mechanism. The heat treatment mechanism includes cooling nozzles located on both sides of the bottom of the quenching liquid tank, which spray coolant onto the gear surface. The lifting and adjusting mechanism includes a height-adjustable fixing plate above the quenching liquid tank, with a clamping assembly for holding the gear and a rotation drive assembly for driving the gear to rotate on the side of the fixing plate. This invention utilizes the gear's own lifting motion to achieve seamless switching between immersion cooling and spray cooling. Immersion first uniformly cools the entire gear teeth, reducing thermal stress, and then spraying forcibly breaks the vapor film at the tooth root, ensuring that the cooling rate at the tooth root meets the martensitic transformation requirements and completely solving the problem of insufficient tooth root hardening.

The application discloses a method for determining a tooth root fillet radius of a straight bevel gear and related devices, and relates to the technical field of gear parameter calculation. The method comprises the following steps: obtaining a first calculation equation of a target included angle when the tooth root fillet radius is maximum based on the parameters of a driving gear under the condition that the driving gear is not engaged, obtaining a second calculation equation of the target included angle when the tooth root fillet is a full circular arc based on the gear parameters, and obtaining a geometric maximum value of the tooth root fillet radius based on the first calculation equation and the second calculation equation; obtaining the diameter of a starting point of engagement of the driving gear based on the parameters of the engaged gears under the condition that the driving gear is engaged with a driven gear, determining the maximum value of the engaged tooth root fillet radius based on the diameter of the starting point of engagement of the driving gear and the parameters of the engaged gears, and comparing the geometric maximum value of the tooth root fillet radius with the maximum value of the engaged tooth root fillet radius, so that the smaller value is taken as the tooth root fillet radius of the straight bevel gear. The application can solve the problems of gear engagement interference and poor gear strength.

The invention relates to the technical field of intelligent auxiliary surgeries of oral cavity alveolar surgery, and discloses an intelligent auxiliary system for an adaptive process of an alveolar socket in a tooth receiving area of autologous tooth transplantation, the system integrates a multi-modal sensor through a personalized bionic tooth root template module, and obtains biomechanical and spatial parameters in real time in combination with a multi-channel physical signal acquisition module; after signal preprocessing is carried out by the edge calculation module, an intelligent analysis module generates a chimeric score, a path correction vector and risk early warning through a fusion neural network, and finally a three-dimensional pressure heat map, an attitude deviation indication, a depth progress bar and an impedance distribution map are presented in real time through a visualization module. All the modules communicate with each other through unified timestamp calibration and a standardized frame structure. Through a multi-modal sensing and intelligent analysis technology, real-time biomechanical feedback, three-dimensional dynamic visual guidance and closed-loop data tracking of alveolar socket adaptation in autologous tooth transplantation are realized, and the core problems of direction deviation, trial implantation damage, attitude blind areas and the like in traditional operation are effectively solved.

The present application provides a kind of inner and outer tooth forming device and method of clutch hub, including die, the inside of the die is provided with reverse block for fixing blank, the upper side of the reverse block is equipped with bulging forming assembly or stamping forming assembly, the bulging forming assembly includes punch slider and driving mechanism for driving the radial movement of the punch slider, the stamping forming assembly includes punch that can be installed on press, the circumferential side of the punch is equipped with second forming part same with the shape of the internal tooth of target part, the bottom end outside of the punch is equipped with guide belt connected with second forming part;The present application has the following beneficial effects: the present application adopts bulging and stamping compound forming method, promotes the flow of blank material in the fillet portion, reduces the fillet gap at the fillet, not only effectively improves the filling quality of clutch hub class parts at the fillet, but also effectively avoids the generation of folding defects at the tooth shape inside close to the tooth root portion in the forming process.

The application discloses a large internal ratchet wheel machining method, which comprises the following steps: S1, rotating a machine tool B shaft; S2, tooling a ball cutter (4) installed on the machine tool B shaft accessory with any two points on a large tooth surface of a tooling slot and any one point on a small tooth surface respectively to obtain coordinate values of each tooling point in a cutter tip coordinate system; S3, according to the intersection of a tooth root virtual circle under the cutter tip coordinate system and the connecting line of the two tooling points on the large tooth surface, the intersection point constitutes the coordinate values of a tooth root vertex in the cutter tip coordinate system, and the coordinate values of the tooth root vertex in the cutter tip coordinate system and the offset of the cutter tip coordinate system relative to a part coordinate system are obtained according to a trigonometric function relationship; and S4, the offset is used for compensating the cutter tip position deviation generated by the rotation of the machine tool B shaft. The technical effect of the application is that qualified large internal ratchet wheels are machined by compensating the cutter tip position deviation and the part tooth slot phase deviation, qualified large internal ratchet wheels are machined on a machine tool by using a common ball cutter, and production cost is saved.

The present application relates to the technical field of picking elastic tooth, especially to a pepper picking elastic tooth imitating human hand, comprising: a tooth root, the tooth root is connected with a tooth section, the tooth section is connected with a tooth tip; a connecting assembly, the connecting assembly comprises a rotating connection mechanism, an adjusting mechanism and a fixing mechanism; a friction assembly, the friction assembly is arranged on the tooth root, the tooth section and the tooth tip and is used for increasing the friction of the tooth root, the tooth section and the tooth tip; a cleaning assembly, the cleaning assembly comprises an energy storage mechanism and a blowing mechanism; when the present application is used, the relative position between the tooth root, the tooth section and the tooth tip can be fixed by the fixing mechanism after the position of the tooth root, the tooth section and the tooth tip is adjusted by the rotating connection mechanism, so that the bending state of the human hand can be simulated when picking, and the picking angle can be adjusted more conveniently to adapt to the picking of different peppers.