117 results about "Tooth grinding" patented technology

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 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 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.

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.

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.

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.

The utility model relates to the field of tooth polishers, in particular to a tooth polisher with a cleaning function, the tooth polisher comprises a tooth polisher body and a polishing rod, the tooth polisher body is provided with a driving cavity, the polishing rod is mounted in the driving cavity in a transmission manner, and the tooth polisher body is provided with a detachable mounting piece; a plurality of fixing seats are fixedly arranged on the outer side of the mounting part on the tooth grinder body, clamping columns are movably arranged on the fixing seats, and clamping grooves corresponding to the clamping columns are formed in the outer side of the mounting part in a matched mode. According to the tooth polisher, the polishing rod can be assembled on the tooth polisher body through the mounting piece, the mounting piece can be fixed through the fixing base and the clamping column, the dismounting and mounting mode of the polishing rod is simple and convenient, and a user can dismount and clean the polishing rod conveniently after using the tooth polisher.

The invention discloses a control method and device of gear machining equipment, electronic equipment and a readable storage medium, and the control method of the gear machining equipment comprises the steps that under the condition that the gear machining equipment machines a workpiece to form a gear, tooth profile information of the gear is obtained; determining a tooth profile defect type according to the tooth profile contour information; an error mechanism corresponding to the tooth profile defect type and target operation for the error mechanism are determined, and the error mechanism comprises at least one of a tooth grinding wheel, a driving assembly and a clamping assembly; and controlling the gear machining equipment to execute the target operation, wherein the target operation is used for reducing errors caused by the error mechanism to the machined gear. According to the invention, a mechanism for accurately positioning and generating the defect based on the tooth profile defect of the gear is realized, the target operation is executed in a targeted manner, and the tooth profile quality of the gear obtained by grinding is improved.

The application discloses a kind of turbine blade grinding after fluorescent defect root control method and system, it is related to turbine blade technical field, the present application adopts computer full-process closed-loop control, first obtains tenon tooth solidification characteristic parameter, constructs directional solidification multi-physics field coupling model and is solved to obtain transient multi-physics field data set;Again, through paste zone width two-stage quantization calculation, the shrinkage high-risk interval in tenon tooth grinding allowance range is determined;Based on risk interval, the optimal incremental drawing time correction calculation is completed, and qualified directional solidification process parameters are generated and verified;Finally, control equipment executes process, and realizes process solidification or reverse iterative correction by acquisition detection data.The present application eliminates the aggregation of microscopic shrinkage from the solidification source, realizes defect root, precision prevention and control, and has strong stability, which can significantly reduce the reject rate of blade production.

The utility model discloses a tooth grinding wheel for machining broken teeth and a tooth grinding module applying the tooth grinding wheel. The tooth grinding wheel comprises a cylindrical body, first single-face grinding teeth and second single-face grinding teeth. The middle of the cylindrical body is fixedly connected with a rotating shaft, the first single-face grinding tooth is provided with a right grinding face and a left suspension face, the second single-face grinding tooth is provided with a left grinding face and a right suspension face, the left grinding face is integrally connected to the right side of the right grinding face, and the axial distance between the left grinding face and the right grinding face is at least two times of the pitch of a to-be-ground piece; when a to-be-ground piece is machined, the left suspension face and the right suspension face do not make contact with the to-be-ground piece, the right grinding face machines a left tooth mountain of front teeth of the to-be-ground piece, the left grinding face machines a right tooth mountain of rear teeth of the to-be-ground piece in a tooth jumping mode, and the grinding starting point of the left tooth mountain is earlier than that of the right tooth mountain all the time. The tool has the advantages of being high in universality, high in grinding efficiency and suitable for machining a to-be-ground piece with a cylindrical blade on the left side tooth mountain and without a cylindrical blade on the right side tooth mountain, and the service life of the to-be-ground piece is long.

The utility model discloses peeling equipment for an aluminum profile casting rod, and belongs to the field of aluminum profile processing. According to the technical scheme, the peeling equipment for the aluminum profile casting rod is divided into a peeling machine body and a grinding pipe body, and the grinding pipe body is arranged at the output end of the peeling machine body in a matched mode; according to the aluminum profile peeling device, an aluminum profile peeling structure is optimized, a beam tube clamping groove and a position correction part are arranged at the front end, the overall limiting precision and the fixing capacity in the aluminum profile machining process are achieved, and therefore the comprehensive quality in the aluminum profile peeling process is further improved; and meanwhile, the structure of the peeling part is optimized, the surface of the aluminum profile is subjected to peeling treatment in a transverse tooth grinding mode, the error-tolerant rate in the surface treatment process of the aluminum profile is increased, and the actual production loss is further reduced.

The invention discloses a cattle rear groove tooth imitating grinding and rubbing type mulching film crushing device, and belongs to the field of agricultural machinery. Composite grinding and rubbing motion of cow rear groove teeth is simulated, angle left-right swinging, forward stretching and retracting and rotary composite motion of the grinding and rubbing head are achieved through the power mechanism and the transmission mechanism, and compared with an existing single cutting and extruding mode, the mulch film crushing device can act on mulch films more comprehensively, so that the mulch films are crushed more thoroughly, crushed particles are high in uniformity, and follow-up recycling and reusing are facilitated. Through the triple anti-winding design, namely the grinding and rubbing disc of an asymptote structure, the grinding and rubbing plate provided with trapezoidal protrusions and the smooth treatment layers at the joints, winding of the mulching film in the crushing process is avoided in a multi-dimensional mode, the number of times of shutdown cleaning of equipment is reduced, and the operation continuity is improved.

The invention discloses an efficient machining end tooth grinding machine, and relates to the technical field of grinding machines, the efficient machining end tooth grinding machine comprises a rack, a vertical displacement module is installed on the left side of the rack, and a grinding module used for grinding the end face of an end tooth is installed at the output end of the vertical displacement module; a workbench is fixed to the front side of the rack, a transverse displacement module is fixed to the upper end of the workbench, a mounting plate is mounted at the output end of the transverse displacement module, a base plate is fixed to the mounting plate, and a first three-jaw chuck part and a second three-jaw chuck part are rotationally mounted on the left side and the right side of the base plate respectively. A control mechanism is mounted on the mounting plate and used for driving the first three-jaw chuck part and the second three-jaw chuck part to rotate in sequence. According to the efficient machining end tooth grinding machine, alternate rotation of the two stations is achieved through the control mechanism, high cost and energy waste caused by traditional double-motor driving are avoided, meanwhile, the static station is locked through the limiting plate, position deviation caused by inertia or external force is avoided, the machining precision is ensured, meanwhile, the standby time is shortened, and the machining efficiency is improved.

The utility model relates to the field of pet toys, in particular to a pet woven belt and a pet woven toy, and provides the pet woven belt and the pet woven toy which not only can attract attention of pets and be played by the pets, but also can be used for tooth grinding and cleaning of the pets. The pet woven belt comprises a strip-shaped soft plastic part, a strip-shaped elastic part and a strip-shaped elastic part, and the strip-shaped knitting piece is embedded in the through groove. The pet weaving toy is formed by weaving at least one pet weaving belt in a staggered mode, and weaving gaps for a pet to bite and hold are formed between the pet weaving belts. According to the utility model, the strip-shaped soft plastic part and the strip-shaped woven part are combined together, and the strip-shaped woven part is embedded in the strip-shaped soft plastic part, so that the strip-shaped woven part is endowed with certain wrapping and protecting effects, and teeth can be cleaned by utilizing friction between teeth and woven gaps while the pet can bite, hold and play; the functionality of the pet weaving toy is improved.

A tumbler pet food leaking toy comprises a shell with a hemispherical bottom, a balance weight component is arranged in the shell and is subjected to balance weight through sand, a mounting hole is formed in the shell, a tooth grinding assembly is arranged in the mounting hole, one end of the tooth grinding assembly extends into the shell, and the other end of the tooth grinding assembly protrudes out of the upper portion of the mounting hole and is used for grinding teeth of a pet. The playing fun of the pet is increased; a granary is arranged in the shell, dog food can be poured into the granary, a hole for the dog food to pass through is formed in one side of the shell, when a pet plays the non-tumbler toy, the shell continuously topples and resets, the dog food contained in the granary falls out through the hole 7 by shaking the shell, and the playing fun of the pet is increased. According to the pet toy, the pet can be awarded through falling dog food while playing and tooth grinding of the pet are achieved, the playing interest of the pet can be fully stimulated, activities of the pet are facilitated, and the multi-functionality of pet playing is achieved.

The present application relates to a kind of turbine working blade tenon tooth processing clamping devices, comprising;Base, the base is divided into multiple stations, each described station is provided with plane positioning mechanism, inclined plane positioning mechanism and pressing mechanism, the plane positioning mechanism and the inclined plane positioning mechanism are arranged on the base, and the pressing mechanism is detachably connected with the base;The two sides of the base width are respectively provided with the plane positioning mechanism, the inclined plane positioning mechanism and the pressing mechanism that cooperate with each other.The beneficial effects of the present application are that the processing pressing device adopts double-station design, improves the processing efficiency by dividing into left and right two stations, improves the process of slender turbine working blade, instead of traditional casting low-melting-point alloy on blade to enhance strength, alloy positioning is used to carry out tenon tooth grinding processing method, new processing clamping device is used to position and clamp blade, and the direct, economic grinding processing of slender low-pressure turbine working blade is realized.

1. The name of the design product: tooth grinding stick (1). 2. The use of the design product: for tooth grinding stick. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The application provides a tooth grinding event detection system and a tooth grinding data processing method. The method comprises the following steps: acquiring facial electromyography data and auxiliary data collected by a wearable recorder worn on the face of a detection object; determining a suspected tooth grinding event according to the facial electromyography data and a tooth grinding threshold; and verifying the suspected tooth grinding event by using the auxiliary data to determine a tooth grinding event. The wearable recorder collects auxiliary data while collecting facial electromyography data. When analyzing a tooth grinding event, the facial electromyography data and a tooth grinding threshold are used to preliminarily screen out a suspected tooth grinding event, and then the auxiliary data is combined with the suspected tooth grinding event to analyze and verify an actual tooth grinding event one by one. As a result, artifacts in the electromyography data can be removed, and the accuracy of tooth grinding event recognition is improved.

The utility model discloses a grinding device for false tooth manufacturing, which relates to the technical field of false tooth manufacturing and comprises a base, a support frame is mounted at the top of the base, a dust collection component is mounted on the front side of the support frame, and the dust collection component is used for collecting dust generated by false tooth grinding. And the dust collection assembly comprises connecting plates, a mounting frame, a fixing pipe and a dust collection nozzle, the connecting plates are symmetrically installed on the front face of the supporting frame, the mounting frame is installed on the inner sides of the connecting plates, the fixing pipe is installed on the inner side of the mounting frame, and the dust collection nozzle is installed on the inner side of the fixing pipe. According to the utility model, all dust generated by grinding can be sucked and treated through the dust suction assembly, so that the dust treatment efficiency is higher, and the dust is prevented from polluting the hands of a worker and the environment.

The utility model discloses a liquid cooling molar device with a novel rotary sealing structure. The liquid-cooled tooth grinding device comprises a liquid-cooled grinding wheel, a liquid passing rotating shaft and two rotary sealing connectors, a cooling ring groove, a radial liquid inlet hole and a radial liquid outlet hole of the liquid cooling grinding wheel and an axial liquid inlet hole and an axial liquid outlet hole of the liquid passing rotating shaft form a liquid channel, and a threaded port of the liquid channel is connected with rotating connecting pipes of the two rotating sealing connectors. A driven wheel of the driving part is fixedly connected with the outer end of the peripheral wall of the liquid-passing rotating shaft; the outer end of a rotary cavity of a fixed shell of the rotary sealing connector is connected with a rotary connecting pipe through a bearing, the axial spring pressing end of the rotary sealing connector elastically fits the outer wall of the rotary connecting pipe towards a friction sleeve, and the outer end of the fixed cavity is in threaded connection with a liquid inlet pipe and a liquid return pipe of a liquid supply part. According to the utility model, a novel rotary sealing structure is adopted to realize a good internal circulation liquid cooling passage, the temperature can be quickly reduced, the device is suitable for high-temperature grinding scenes, and the product yield is high.

This is a dental measuring tool used to check the degree of tooth grinding when grinding and capping teeth. As shown in the "Reference Front View," this tool consists of a gripping portion, an interocclusal measurement portion, and a grinding shoulder measurement portion. For example, when grinding and capping a lower jaw tooth, as shown in "Reference Figure 1 Showing the State of Use," the tip of the interocclusal measurement portion is inserted between the ground lower jaw tooth and the upper jaw tooth to measure the gap. Furthermore, as shown in "Reference Figure 2 Showing the State of Use," the grinding shoulder measurement portion is placed along the ground lower jaw tooth, and the shoulder (foot-like portion) of the lower jaw tooth is measured using the tip diameter of the grinding shoulder measurement portion, and the height of the lower jaw tooth is measured using the scale on the grinding shoulder measurement portion.

The invention discloses a tooth grinding device for production of a TA coating saw blade, and relates to the technical field of deep machining of cutting blades, the tooth grinding device comprises a base, a driving mechanism mounted at the top of the base and a tooth grinding mechanism mounted at the top of the base, and further comprises a pressing mechanism used for pressing the saw blade in the tooth grinding process; the cooling mechanism is used for cooling the saw blade in the tooth grinding process; the metal separation mechanism is used for removing metal scraps in the cooling liquid at the top of the saw blade; the stripping mechanism is used for removing the metal chippings on the metal separation mechanism at a set position; and the electromagnet disc on the outer side of the pressing block is driven to rotate, metal particles in cooling liquid at the top of the saw blade are rapidly adsorbed, the situation that the metal particles exist at the top of the saw blade is avoided, and the problem that in the grinding process of the next tooth groove, the metal particles in the cooling liquid at the top of the saw blade continuously flow into the tooth groove, and the grinding quality of the saw blade is affected is further avoided.

The application discloses a high-precision internal tooth grinding method for automobile gear internal tooth processing. The grinding method comprises the following steps: S1, starting a numerical control grinding machine, selecting a processing program and setting gear processing parameters; S2, the current tooth contact of a grinding wheel and a workpiece gear; S3, after the grinding of the current tooth is completed, the grinding wheel is separated from the workpiece gear; S4, the workpiece gear is divided into teeth, wherein the tooth division pulse number is equal to the basic pulse number plus the compensation pulse number; and S5, repeating S2, S3 and S4. When the grinding of the current tooth is completed and the next tooth is switched to, the decimal part of the tooth division pulse of the current tooth is taken as the compensation pulse, the compensation pulse is added to the basic pulse, so that the tooth division pulse of the next tooth is obtained, and the workpiece gear can be driven to rotate to the next tooth with high precision by the tooth division motor. The high-precision tooth division is realized, the transmission efficiency, the carrying capacity and the service life of the workpiece gear are improved, the noise level of the workpiece gear is reduced, and the increasingly strict requirements of the automobile industry on the gear grinding precision are met.

The utility model discloses a spherical pet toy. The spherical pet toy comprises an inner sphere (1) made of hard plastic, a cavity (2) is formed in the inner ball body (1), and a movable bell (3) is placed in the cavity (2); a plurality of grooves (4) are formed in the surface of the inner ball body (1), and a plurality of tooth grinding rods (5) are fixedly connected in each groove (4); an outer ball body (6) made of elastic rubber is connected to the outer side of the inner ball body (1), and openings (7) are formed in the two symmetrical ends of the outer ball body (6); through holes (8) communicated to the cavity (2) are formed in the positions, corresponding to the two openings (7), of the inner ball body (1), detachable pull ropes (9) are connected into the two through holes (8), and the pull ropes (9) penetrate through the openings (7) to extend to the outer side of the outer ball body (6). The pet toy not only can better attract pets to play, but also has the advantages of better convenience and longer service life.