219 results about "Tooth grinding" patented technology

The invention discloses a tooth grinding control system for gear machining, and relates to the technical field of gear grinding. An arc-shaped material collecting cover is installed at the top of a lifting control frame, a blank positioning mechanism used for clamping a gear blank and controlling the gear blank to rotate is arranged on the inner side of the arc-shaped material collecting cover, a tooth groove grinding piece matched with a tooth groove is arranged on one side of a cutting cutterhead on the inner side of the arc-shaped material collecting cover, and a first scrap suction pipe is arranged on the other side of the cutting cutterhead. A second scrap suction pipe is arranged on the side, away from the cutting cutterhead, of the tooth groove grinding piece, the end of the first scrap suction pipe abuts against and aligns to the tooth groove in the gear blank to achieve scrap suction, and the end of the second scrap suction pipe abuts against and aligns to the tooth groove in the gear blank to achieve scrap suction. The cutting cutterhead and the tooth groove grinding piece are integrally arranged on the inner side of the arc-shaped top cover, turning and grinding machining of the gear can be achieved in the process of controlling the reciprocating grinding mechanism to do horizontal reciprocating motion, and the gear machining efficiency and quality are improved through the gear in-situ machining mode.

The invention discloses a molar signal monitoring system and method based on optimized variational mode decomposition, and relates to the technical field of bio-electricity signal detection and processing. The system comprises a signal acquisition module used for acquiring temporalis surface electromyogram signals; the signal preprocessing module is used for performing preprocessing and envelope calibration on the temporalis surface electromyogram signals; the GWO-VMD algorithm module is used for performing multi-modal characteristic decomposition on the target temporalis surface electromyogram signals by using a GWO-VMD algorithm; the feature extraction module is used for extracting time domain features and frequency domain features from the multiple modal components; the classification and recognition module is used for classifying the feature vectors; and the real-time feedback and evaluation module is used for carrying out molar state evaluation according to the state classification result, and generating and sending a molar state monitoring result. According to the invention, different actions such as tooth grinding, tooth clenching, speaking, chewing and the like can be accurately identified, so that the signals of tooth grinding and tooth clenching are extracted for quantitative calculation and evaluation, and higher monitoring precision and real-time performance are achieved.

The utility model discloses a multistage grinding device for konjak processing, which relates to the technical field of food processing and comprises a grinding box, and two matched large-tooth grinding rollers are arranged on the upper side in the grinding box. According to the multi-stage grinding device for konjak processing, two electric push rods are arranged to drive a grid type partition plate to ascend and descend on a material conveying plate, after konjak is added to the material conveying plate, the grid type partition plate descends to cut the konjak into small blocks with the uniform size, and then the konjak slides into a grinding box along with the material conveying plate; according to the konjak grinding device, primary grinding is conducted through the two large-tooth grinding rollers, secondary fine grinding is conducted through the two small-tooth grinding rollers, multi-stage grinding of konjak is achieved, insufficient grinding caused by direct grinding of large konjak blocks is effectively avoided, and the konjak grinding quality is improved.

The invention relates to a precision slender triangular spline inner broach machining method. The problems that an existing method is poor in quality and low in production efficiency are solved. The method comprises the steps that 1, a broach is subjected to repeated upsetting and drawing forging from a blank, and carbide segregation after forging is guaranteed; 2, rough machining is carried out to control bending deformation out-of-tolerance, straightening is carried out after machining is completed, and machining stress is eliminated; 3, bending deformation is controlled through four times of outer circle grinding, straightening and bearing grinding measures in semi-finish machining; 4, tooth profile rough grinding is carried out, and grinding of all tooth profiles is completed through one-time clamping machining; straightening is conducted after machining is completed, and machining stress is eliminated; and 5, the starting stroke and the stopping stroke of a workbench are changed, involute tooth profile parameters are input for accurate grinding, the consistency of the centers of the triangular spline teeth and the involute spline teeth is guaranteed, and when the M value of the two sections of tooth profiles is ground to be close to the measured value of a finished product, the feeding amount of a grinding wheel is reduced, smooth grinding is repeated, and spark-free grinding is carried out. The machining efficiency is high, the part machining quality is stable, and the batch production requirement can be met.

The invention provides a double-pressure-angle asymmetric tooth profile design and worm grinding wheel tooth grinding method. A tooth profile equation of the asymmetric gear is deduced, the meshing relation between a rack tool and the gear is analyzed in detail, and a precise profile geometric model of the dual-pressure-angle asymmetric gear is further established. In the aspect of worm grinding wheel gear grinding machining, the contour design and finishing method of a worm grinding wheel and application of the worm grinding wheel in asymmetric gear machining are studied, and a worm grinding wheel geometric model and a diamond roller geometric model needed by double-pressure-angle asymmetric gear worm grinding wheel gear grinding are established. The method provides a theoretical basis and an accurate model for design and processing of the asymmetric gear, and is of great significance for improving the efficiency and reliability of a gear transmission system.

The invention discloses a numerical control forming gear ring inner tooth grinding machine and a using method thereof.The numerical control forming gear ring inner tooth grinding machine comprises a lathe bed assembly, a numerical control rotary table assembly, a grinding wheel spindle assembly and a workpiece clamping assembly, the lathe bed assembly adopts a mineral casting base, the damping coefficient is larger than 10%, and a linear guide rail is installed on the lathe bed assembly; s3, grinding feeding and indexing; S4, grinding stage control; S5, track correction; S6, grinding wheel wear compensation; through a mineral casting base of the lathe bed assembly, an angle encoder of the numerical control rotary table assembly and a CBN material formed grinding wheel of the grinding wheel spindle assembly, the effect of improving the machining precision is achieved; through the steps S2, S4 and S5, the effect of optimizing the machining quality is achieved, the tooth profile error and the surface roughness are effectively controlled, and the machining quality of the inner gear ring is improved; and through S1, S3 and S6, the effect of improving the machining stability and reliability is achieved, and the machining stability and reliability of equipment are improved.

The application discloses a night tooth grinding detection and grading method based on multi-modal signal fusion, which acquires multi-modal physiological signals including at least electromyographic signals, body movement signals and sound signals, and respectively carries out pretreatment to extract electromyographic intensity features, body movement intensity features and acoustic features; an adaptive threshold is constructed based on the electromyographic intensity features, and the adaptive threshold is dynamically adjusted in combination with the body movement intensity features to detect suspicious tooth grinding segments; the acoustic features are further fused to confirm the suspicious tooth grinding segments, determine a tooth grinding event; and the tooth grinding event is graded and output according to intensity features, duration features and multi-modal consistency features of the tooth grinding event; the application effectively reduces the false alarm rate, improves the accuracy and stability of the night tooth grinding detection through the multi-modal signal fusion and the adaptive threshold judgment mechanism, and has good practical value.

The invention discloses a few-axis-point dressing method for a drum-shaped worm grinding wheel. The dressing precision of a face gear worm grinding wheel is improved by avoiding the requirement of the grinding wheel for a tilting axis of a machine tool. The nominal slotting cutter is perpendicular to the axis of the grinding wheel, and the end face profile of the nominal slotting cutter is consistent with the section profile of a grinding wheel shaft, so that the requirement of a dressing wheel on a machine tool deflection shaft is avoided, the number of machine tool movement shafts participating in linkage in the grinding wheel dressing process is reduced, and the grinding wheel dressing precision is further improved; according to the method, only three machine tool shafts are used for finishing the worm grinding wheel of the opposite gear in a linkage mode, a grinding wheel rotating shaft, a radial moving shaft and an axial moving shaft are included, and a finishing path uniformizing method is provided so that precise and efficient finishing machining of the worm grinding wheel profile can be guaranteed. According to the method, the defects of high cost, poor flexibility and existence of principle errors of the formed dressing wheel can be avoided, and a theoretical foundation is laid for reverse adjustment of the tooth grinding error of the face gear or generating grinding of the tooth surface of the complex modified face gear.

The utility model relates to a tooth grinding machine with a cleaning function, and relates to the technical field of grinding machines, the tooth grinding machine comprises a control box and a handle, the front end of the handle is provided with a grinding head, the handle is provided with a cleaning pipe, and one end of the cleaning pipe faces the side close to the grinding head; an adjusting assembly is arranged on the handle and used for adjusting the flushing angle, facing the grinding head, of the cleaning pipe. The position of the cleaning pipe can be adjusted, so that when an operator holds the grinding head on the handle to clean teeth, the sight is not hindered, and the grinding effect of the operator is improved.

The application provides a tooth grinding navigation method, system and storage medium, comprising the following steps: registering to obtain a coordinate conversion relationship between any two of a CT three-dimensional coordinate system, a reference plate three-dimensional coordinate system and an optical three-dimensional coordinate system; calibrating a tooth extraction handset; constructing and optimizing an oral cavity anatomical structure segmentation learning model; segmenting oral cavity CT real-time three-dimensional data; selecting a three-dimensional model of a tooth to be treated in a tooth CT three-dimensional model; obtaining a real-time relative position between the tooth to be treated and the tooth extraction handset; and updating the three-dimensional model of the tooth to be treated in real time according to a running path of a pin tip, and eliminating three-dimensional voxels on the three-dimensional model of the tooth to be treated that coincide with the running path of the pin tip. The oral cavity anatomical structure segmentation learning model can provide assistance for analysis based on oral cavity CT real-time three-dimensional data, and real-time poses of a handset tracker and an oral reference plate collected by a binocular navigator are used to realize visual tooth grinding.

The invention relates to the technical field of all-ceramic false tooth grinding, and discloses an all-ceramic false tooth grinding system and a false tooth preparation method thereof.The all-ceramic false tooth grinding system comprises a grinding unit, a transmission unit and a rotating unit, the grinding unit comprises a grinding assembly, and a first circular containing barrel and a second circular containing barrel are arranged at the bottom of the grinding assembly; all-ceramic false teeth are placed in inner cavities of the first circular placement barrel and the second circular placement barrel, and the grinding assembly is used for grinding the placed all-ceramic false teeth; the rotating unit comprises two rotating shafts. According to the device, the driving assembly drives the first circular placement barrel, the second circular placement barrel and the rotating unit to rotate by one circle, and after one circle of rotation is completed, the driving assembly can drive the ejector rod to unlock the rotating unit, so that the rotating unit is driven by the rack to rotate by 180 degrees; therefore, the surfaces of the placed false teeth can be changed, the false teeth can be ground conveniently through the grinding assembly, and manual surface changing is not needed every time when the surfaces are changed.

The utility model relates to the field of tool storage devices, in particular to a concentrated pick-and-place device for tooth grinding tools, which comprises a mounting frame, a rotating seat is mounted in the middle of the bottom side of the mounting frame, a clamping block is rotatably mounted in the rotating seat, a connecting seat is rotatably mounted at the inner bottom end of the clamping block through a rotating pin, and one side of the connecting seat is connected with a placing frame. One side of the upper portion of the placing frame is connected with the mounting frame through a first spring, a plurality of first placing blocks and second placing blocks are installed in the middle of the placing frame, and a plurality of placing grooves are formed in the first placing blocks and the second placing blocks. According to the storage rack, the storage number of tools is increased through the multiple storage grooves formed in the first storage block and the second storage block, meanwhile, the tools in use can be temporarily stored through the design of the trapezoidal basket so as to improve the follow-up taking and placing convenience, and meanwhile, the rotary reset function of the storage rack is achieved in cooperation with the arrangement of the rotating base, the connecting base, the first spring and other assemblies; and therefore, the efficiency and convenience of tooth grinding operation are improved.

The utility model relates to the technical field of gear grinding equipment, in particular to a gear grinding device. Comprising a box body, a bottom support, a gear motor, a circular ring, a top support, a telescopic adjusting grinding wheel and a positioning clamping mechanism, after a gear to be subjected to tooth grinding is placed outside a positioning protrusion through a shaft hole of the gear, a rotating piece is rotated, and due to the fact that the end, located in a mounting protrusion, of the rotating piece is in mechanical transmission with a transmission bevel gear, a driving shaft is driven to rotate; according to the gear positioning device, the rotating disc is driven to rotate in the positioning protrusion, a toothed plate arranged on each sliding abutting block is meshed with a plane thread on the rotating disc, so that the four sliding abutting blocks are driven to synchronously slide on the positioning protrusion, and the four sliding abutting blocks abut against the inner wall of a shaft hole of a gear; by the adoption of the structure, gear grinding treatment can be carried out on gears with shaft holes of different sizes, and the gear grinding device is higher in applicability.

The utility model relates to the technical field of correctors, and discloses an invisible tooth corrector which comprises a tooth socket, an anti-abrasion assembly is arranged at the top of the tooth socket, the anti-abrasion assembly is used for preventing the tooth socket from rubbing the gingiva or the inner side of the lip, the tooth socket is provided with two third tooth sockets, the two third tooth sockets are symmetrical, and the two third tooth sockets are arranged on the tooth socket. An inner wall is arranged in the tooth socket, a lip side is arranged on the outer wall of the tooth socket, a tongue side is arranged in the tooth socket, a plurality of tooth grinding grooves are formed in the tooth socket, grooves are formed in the outer walls of the two sides of the third tooth groove, arc sides are arranged on the outer sides of the grooves, the anti-abrasion assembly comprises an arc-shaped edge, and the arc-shaped edge is arranged at the top of the tooth socket. According to the tooth socket, when the tooth socket needs to be taken down, better force application is provided through the grooves formed inside and outside the third tooth socket, so that the tooth socket can be taken down conveniently, the situation that a hand needs to go deep into the oral cavity to pull the tooth socket to cause gingival scratch when the tooth socket is taken down is avoided, and the safety is improved.

A saw blade piece cutting tooth grinding device comprises a mounting frame, a distance adjusting assembly, a linear driving assembly I, a tooth shifting assembly and a grinding assembly, the linear driving assembly I is arranged on one side of the mounting frame, the grinding assembly is arranged on the opposite side of the mounting frame, the distance adjusting assembly is arranged on the mounting frame, and the execution tail end of the distance adjusting assembly is matched with the power output end of the linear driving assembly I; wherein the distance adjusting assembly is used for adjusting the reciprocating distance of the power output end of the linear driving assembly I, the tooth stirring assembly is arranged on the mounting frame, and a stirring rod in the tooth stirring assembly is rotationally mounted on the mounting frame and makes contact with the tooth part of the saw blade. In the working process, the distance adjusting assembly and the linear driving assembly II are arranged, the distance of reciprocating motion of the sliding block II can be adjusted through the distance adjusting assembly, the distance between the tooth stirring assembly and the saw blade can be adjusted through the linear driving assembly II, and therefore the tooth stirring device can stir the saw blades with different sawtooth distances; by means of the device, automatic tooth shifting can be achieved when saw blades with different saw tooth intervals are ground.

The present application relates to the technical field of electroplated grinding wheel, in particular to a combined grinding wheel for grinding fan gear shaft and a manufacturing method thereof, which solves the problem of low machining precision of the grinding wheel on the fan gear shaft in the prior art, and the combined grinding wheel comprises two oppositely arranged edge tooth grinding wheels, the two edge tooth grinding wheels are detachably connected, a plurality of side-by-side arranged intermediate tooth grinding wheels are arranged between the two edge tooth grinding wheels, and the edge tooth grinding wheel and the intermediate tooth grinding wheel are coaxially arranged. The beneficial effect is that the combined grinding wheel integrates the tooth surfaces with different profiles on the fan gear shaft into a set of combined grinding wheel, and when the combined grinding wheel grinds the tooth surface of the fan gear shaft, the grinding wheel only needs to be clamped once, and then the grinding of the whole tooth surface of the fan gear shaft can be completed through the rotation and displacement of the fan gear shaft workpiece, thereby improving the machining efficiency and machining precision of the fan gear shaft.

1. Name of the design product: Pet chew toy (acorn). 2. Use of the design product: This design product is used for pet feeding, teeth grinding and toys. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Stereogram 1.

The invention relates to a tooth groove grinding clamp for high-load connecting rod tooth groove precision machining and a machining method of the tooth groove grinding clamp. The tooth groove grinding clamp used for high-load connecting rod tooth groove precision machining comprises a bottom plate used for supporting and fixing the tooth groove grinding clamp, and the bottom plate fixes the tooth groove grinding clamp to a machine tool for grinding through bolts and nuts; the vertical plate is vertically and upwards arranged on the bottom plate; the connecting rod body fixing assembly is arranged on one side face of the vertical plate and used for fixing a connecting rod body to be machined; the connecting rod cover fixing assembly is arranged on the other side face, opposite to the connecting rod body fixing assembly, of the vertical plate and used for fixing a connecting rod cover to be machined, and when the connecting rod body to be machined and the connecting rod cover are positioned, the connecting rod body to be machined and the connecting rod cover are staggered by one half of the tooth pitch. According to the tooth groove grinding clamp for high-load connecting rod tooth groove precision machining, a connecting rod body and a connecting rod cover are clamped for tooth grinding machining, tooth grooves of the connecting rod body and the cover can be ground at the same time, and it is guaranteed that the tooth shapes of the connecting rod body and the cover are consistent.

The utility model discloses a defect repairing device for a baked porcelain restoration, which belongs to the field of baked porcelain restoration and comprises a handle, an anti-slip sleeve is fixedly sleeved on the outer wall of the handle, an adsorption component is arranged on the side wall of the handle and comprises a sliding seat fixedly connected to the side wall of the handle, and a limiting block is fixedly connected to the side wall of the sliding seat. Through cooperative use of all the devices, in the polishing process of the polishing head, tooth powder generated during polishing can be rapidly adsorbed through cooperation of the suction rod, a suction box, a vacuum generator and a negative pressure pipe and high-speed adsorption force, the powder is adsorbed through a filter plate and an adsorption plate, and the tooth powder is adsorbed through the suction box, the suction box, the vacuum generator and the negative pressure pipe; tooth powder is prevented from remaining at the tooth grinding position to affect the adhesion strength of porcelain repair, the repair efficiency can be improved through adsorption in the grinding process, the cleaning assembly is matched, the grinding efficiency can be improved through mutual cooperation of a flushing box, a nozzle and an air pipe and water flow, and the repair effect is further improved.

The utility model discloses a circular saw blade tooth grinding device which comprises a working table, motor bases are installed on the two sides of the top end of the working table, grinding wheels are installed on one sides of the motor bases, a linear motor is installed in the middle of the top end in the working table, and an adjusting mechanism is arranged at the top end of the linear motor. A bottom plate is arranged at the top end of the adjusting mechanism. The bottom end of the bottom plate is connected with the adjusting mechanism through the adjusting plate, and the positioning rod in the adjusting mechanism is inserted into the positioning groove in the adjusting plate, so that the position adjustment of the adjusting mechanism and the adjusting plate can be completed; the adjusting plate can drive the bottom plate at the top end to conduct inclination angle adjustment with the saw blade body, so that the grinding angle is rapidly adjusted according to the actual use condition of the circular saw blade, and the adjusting mechanism, the adjusting plate and the bottom plate can be driven by the linear motor to conduct distance adjustment with the grinding wheel.

This invention relates to a composite structure for reducing stress concentration and tooth breakage in elastic tooth grinding wheels, belonging to the field of grinding wheels. It includes: a frame, grinding elements, and a grinding wheel base. The frame is fixedly mounted on the grinding wheel base. Multiple grinding elements are circumferentially spaced within the frame. The grinding elements are inclined rearward along the grinding wheel's rotation direction. The portion of the frame in front of the grinding elements along the grinding wheel's rotation direction serves as a front stop to prevent the grinding elements from moving forward circumferentially under the centrifugal force of the rotating grinding wheel. A counterweight structure is provided on the front stop. This invention helps reduce the risk of stress concentration fracture.

A system and method for training a classification module of nonverbal audio events and a classification module for use in a variety of nonverbal audio event monitoring, detection and command systems. The method comprises capturing an in-ear audio signal from an occluded ear and defining at least one nonverbal audio event associated to the captured in-ear audio signal. Then sampling and extracting features from the in-ear audio signal. Once the extracted features are validated, associating the extracted features to the at least one nonverbal audio event and updating the classification module with the association. The nonverbal audio event comprises one or a combination of user-induced or externally-induced nonverbal audio events such as teeth clicking, tongue clicking, blinking, eye closing, teeth grinding, throat clearing, saliva noise, swallowing, coughing, talking, yawning with inspiration, yawning with expiration, respiration, heartbeat and head or body movement, wind, earpiece insertion or removal, degrading parts, etc.

The present invention relates to the field of imaging technology, and discloses a method for fabricating a tooth grinding slice of a specified image section in micro-CT. The method includes the following steps: preserving freshly extracted teeth in a 0.5% thymol solution; selecting target teeth to take micro-CT; importing the Dicom format data of the micro-CT into medical image processing software to three-dimensionally reconstruct a 3D tooth model. In this example, the tomographic image in the lower left corner of the attached figure is selected as an example; the method for fabricating a tooth grinding slice of a specified image section in micro-CT according to the present invention utilizes 3D modeling technology and 3D printing technology to fabricate a 3D printed guide plate for guiding the cutting direction of dental tissue, realizing the accurate transfer from the micro-CT image section to the actual dental tissue surface. By combining the tooth grinding slice fabrication technology with the 3D printed guide plate, the tooth tissue slice is selectively polished in a single direction, effectively protecting the target tissue surface and realizing the accurate transfer from the micro-CT image section to the ultra-thin tooth grinding slice.

The utility model relates to the technical field of automation, and provides a pin tooth feeding and discharging device applied to a pin tooth polishing device, which comprises a rack, a feeding mechanism and a discharging mechanism, the rack is connected with the pin tooth polishing device; the pin tooth grinding device comprises a feeding port and a discharging port. A first surface located above the rack is formed on the rack, the feeding mechanism is connected to the first surface of the rack, and the feeding mechanism communicates with a feeding port of the pin tooth grinding device; a second surface located in the rack is formed on the rack, the discharging mechanism is connected to the second surface of the rack, and the discharging mechanism communicates with a discharging opening of the pin tooth grinding device; the feeding mechanism and the discharging mechanism are integrally arranged on the rack, so that cooperation with the pin tooth grinding device can be completed through one feeding and discharging device, and the space utilization rate is increased.

1. The name of the product of this design: Baby rattle teether. 2. Purpose of the product of this design: a baby teether with a built-in sound-making rattle. It can be used as a teething stick for babies during the teething period, and can also guide and train babies' tracking, listening and hand grasping abilities. 3. The design key points of this appearance design product are: the main view. 4. The picture or photo that best illustrates the key points of the design: main view.

The utility model discloses a saw blade tooth grinding device which comprises a workbench provided with a plurality of supporting legs at the bottom, a containing groove is formed in the top of the workbench, an electric cylinder is arranged at the top of the workbench, a U-shaped frame is arranged on an electric cylinder sliding block of the electric cylinder, a plurality of clamping and fixing assemblies are arranged on the inner side wall of the containing groove, and each clamping and fixing assembly comprises a clamping plate. A sliding rod is connected to the left side face of the clamping plate, a groove is formed in the inner side wall of the containing groove, an inner groove is formed in the inner wall of the upper side of the groove, a wedge-shaped block is arranged at one end of the sliding rod, the sliding rod is sleeved with a spring, a threaded sleeve is embedded in the top of the workbench, the threaded sleeve communicates with the inner groove through a through hole, and a threaded rod is inserted into the threaded sleeve. The bottom end of the threaded rod extends into the inner groove through the through hole and is connected with an abutting ball. According to the saw blade polishing and repairing device, the appropriate number of clamping and fixing assemblies at the appropriate positions can be selected according to the length of saw blades so as to achieve the optimal and stable clamping and fixing effect, at most three saw blades can be polished and repaired at the same time, and the working efficiency is greatly improved.

The invention relates to the technical field of gear chamfering, and discloses a gear chamfering machine which comprises an inclined reciprocating type chamfering mechanism and a threaded type elastic limiting mechanism. A longitudinal threaded rod fixedly mounted at the center of the funnel-shaped shell and a nut mounted at a rod body of the longitudinal threaded rod through a threaded structure are arranged in the funnel-shaped shell; the lower abutting disc is arranged under the nut in a sleeving mode and enables a gear located at the bottom of the lower abutting disc to be clamped to the contact portion of the gear tooth polishing structure; and the spiral spring is located between the lower abutting disc and the nut and can generate downward elastic pressure on the gear. According to the gear chamfering machine, through fixed-angle reciprocating type grinding movement, a fixed-angle chamfering function can be performed on gear teeth of a gear, so that the chamfering angle of the gear can be kept consistent, in addition, the gear teeth are subjected to reciprocating type grinding and chamfering, burrs formed in the grinding process can be removed, and the gear chamfering efficiency is improved. And therefore, the yield of the chamfered gear is improved.

This invention discloses a tooth grinding machine for wide-width band saw blade processing, including limiting plates and a workpiece processing mechanism. A saw blade body portion is inserted between two limiting plates, and each limiting plate has an inclined hole on its side. The inclined hole faces opposite directions to the tooth grooves on the saw blade body. The bottom end of the limiting plate extends into the material collection hopper. The advantages of this invention are: during the feeding process, the abrasive is also driven to rotate by the processing actuator, which can fully fill the gap formed between the annular surface in the middle of the processing actuator and the inner wall of the tooth groove, thus achieving the effect of abrasive grinding the inner wall of the tooth groove. The abrasive is fed in a state of simultaneous movement and rotation, resulting in a finer and smoother grinding surface; it fully utilizes the abrasive, reducing the number of times it needs to be added; and it can automatically adjust and position the tooth grooves on the saw blade body, allowing for rapid adjustment to the grinding state.

The utility model relates to the technical field of oral medicine, in particular to a comprehensive tooth adjusting and grinding training model which comprises an upper jaw and a lower jaw, the upper jaw comprises an upper tooth socket, upper teeth are installed on the upper tooth socket, the lower jaw comprises a lower tooth socket, and lower teeth are installed on the lower tooth socket. Tooth socket pits which are consistent with the tooth roots of the corresponding teeth in shape and size are formed in the corresponding tooth positions of the upper tooth socket and the lower tooth socket, and a through hole through which the upper tooth and the lower tooth can be conveniently detached is formed in the bottom of each tooth socket pit.

The invention relates to a gear part and a production method and application thereof. The process route of the production method comprises the steps of smelting, rolling, forging, machining, hot charging, cleaning, pre-oxidizing, preheating, carburizing, step quenching and tempering. The carburizing technology comprises the steps that convection heating, vacuum heating, pulse carburizing and vacuum heat preservation are sequentially conducted on the gear part at the carburizing temperature, and then heat preservation diffusion is conducted at the temperature 20-50 DEG C lower than the carburizing temperature; the step quenching technology comprises the steps that high-pressure nitrogen is adopted for purging the gear part, and the gear part is cooled in two stages. By improving the 20CrMnTi steel and the quenching process after carburization, the content of bainite which is not easy to expand in a matrix is increased, so that the thermal deformation is reduced, the tooth grinding amount in subsequent processing is reduced, and the production cost is remarkably reduced.