44 results about "Gear grinding" patented technology

This invention discloses a spindle structure for a gear grinding machine, belonging to the field of turning technology. It mainly includes a disassembly and assembly assembly, a housing, a mandrel, and connecting rods. The mandrel is rotatably fitted onto the housing. A connecting rod is provided at each end of the mandrel, and a disassembly and assembly assembly is provided at each end of the mandrel. Each disassembly and assembly assembly includes a connecting sleeve, a connector, a sliding head, a connecting nozzle, a stabilizing plate, a slip ring, and an extension arm. The end of the mandrel has a coaxial insertion hole. When the connecting rod is inserted into the insertion hole of the mandrel, a pressure chamber is formed between the insertion hole and the connecting rod. The connecting sleeve is fitted onto the mandrel, and its inner cavity communicates with the pressure chamber. The sliding head slides axially along the mandrel onto the housing. The stabilizing plate is mounted on the connecting rod. The slip ring is connected to the sliding head and is located near the inner end of the stabilizing plate. The extension arm is connected to the sliding head and is located near the outer end of the stabilizing plate. This spindle structure for a gear grinding machine can solve the problem of vibration caused by multiple cutting tools.

The application relates to the technical field of gear machining, in particular to a main reduction gear grinding clamp for an automobile reduction gearbox. The clamp comprises a clamp body, an expansion sleeve structure, a positioning block and a gland. The expansion sleeve structure comprises an expansion sleeve. The expansion sleeve is a ring structure which expands outward along the radial direction to clamp the inner circle of a workpiece when moving to one side of the axial direction, and shrinks inward along the radial direction to release the inner circle of the workpiece when moving to the other side of the axial direction. A plurality of positioning bosses arranged in the circumferential direction are arranged on the axial end surface of the positioning block in contact with the inner circle of the workpiece. The positioning boss is a convex structure protruding to the inner circle of the workpiece in the axial direction, and is used for positioning the workpiece. The adjacent positioning bosses are arranged in the interval to form a recess channel for discharging grinding impurities. The gland is fixed on the main shaft of a machine tool, and is arranged on the two sides of the axial direction of the workpiece together with the positioning block. The clamp has simple structure, high discharging efficiency of grinding mud and grinding wheel dust in the grinding process, and can effectively maintain the cleanliness of the positioning surface.

The application discloses a kind of ternary composite ceramic binder semiconductor wafer low-damage fine grinding wheel and its preparation method, and the grinding wheel is composed of metal matrix and abrasive layer, and the abrasive layer includes diamond, Al2O3-Si3N4-ZrO2 ternary composite ceramic binder, sintering aid and pore former;It is prepared by surface modification, ultrasonic-sol-gel dispersion, gradient pressing, programmed sintering and precision gear grinding.The binder of the application has high toughness, strong holding force, uniform abrasive dispersion, ordered porous structure, and the roughness of processed wafer is Ra≤3nm, the service life reaches the level of imported products, with low cost, short delivery time, suitable for high-precision thinning of third-generation semiconductor wafers.

This invention relates to the field of machine tool fixture technology, specifically to a gear grinding fixture. It includes a fixture body and an adjusting device. An expansion member is fixedly connected to the upper end of the fixture body. The adjusting device is located directly below the fixture body and includes a fixed plate at the bottom of the fixture body. Multiple mounting bolts are threadedly connected to the fixture body and the fixed plate. An adjusting plate is fixedly mounted at the bottom of the fixed plate. An upper plate and a lower plate are fitted onto the surface of the adjusting plate. Multiple airbags are inserted between the upper and lower plates, located on one side of the adjusting plate. Through the adjusting device, the fixture position can be adjusted according to the offset of machine tool components. It can also dynamically compensate for fixture installation deviations, solving the problem of fixture position mismatch caused by accuracy degradation after long-term use of traditional machine tools. The airbag drive method is flexible and can effectively control gear tooth profile, tooth thickness, and pitch errors, improving gear meshing smoothness and assembly adaptability.

The utility model relates to a kind of cycloidal gear grinding clamps, including jig platform plate, jig installation base, axial positioning structure, radial positioning structure, the jig installation base is fixed in the bottom surface of jig platform plate, the axial positioning structure is set in the top surface center of jig platform plate, the jig platform plate, jig installation base, axial positioning structure such as axial center are set, the radial positioning structure is provided with four groups, four groups radial positioning structure such as circumferential angle setting is in the side of jig platform plate.The utility model optimizes the setting of cycloidal gear grinding clamp, structure has higher precision, can satisfy the requirement of fine processing, and structure uses general design, is suitable for a variety of specifications cycloidal gear processing, in addition structure uses replaceable contact component, reduce maintenance cost, suitable for promotion and use.

This invention discloses a worm gear and forming wheel composite gear grinding machine for processing large gears, including a bed and a workpiece clamping mechanism and a composite machining mechanism arranged opposite to each other on the bed. The composite machining mechanism includes a column, a column slide plate, and a rotary table. The column is slidably mounted on the bed, and the column slide plate is slidably connected to the column. One side of the rotary table is rotatably connected to the column slide plate, and the other side of the rotary table is connected to a grinding feed assembly and a dressing feed assembly. The grinding feed assembly includes a grinding slide plate that slides along a first direction, a grinding spindle mounted on the grinding slide plate, and a grinding wheel. The dressing feed assembly includes a dressing slide plate that slides along a second direction and a dressing assembly. The grinding feed assembly and the dressing feed assembly are used for workpiece processing and grinding wheel dressing, respectively. This invention integrates grinding and dressing on the same rotary table, shortens the transmission chain, and realizes rapid switching between processing and online grinding wheel dressing.

The application discloses a gear grinding fixture, which comprises a body, a base, a tensioning sleeve, a pull rod and a piston, wherein the body is detachably connected with the base, and a piston cavity is formed in the base; a bottom plate is arranged on the lower end cover of the base, an annular positioning boss is arranged on the upper end surface of the bottom plate, the positioning boss extends into the lower end of the piston cavity, and a first sealing ring is arranged between the outer circumferential surface of the positioning boss and the inner circumferential surface of the piston cavity; the piston comprises a small-diameter upper section, a large-diameter middle section and a small-diameter lower section which are sequentially connected in sequence; the outer circumferential surfaces of the small-diameter upper section and the large-diameter middle section are respectively provided with second and third sealing rings between the outer circumferential surfaces and the inner circumferential surface of the piston cavity; the small-diameter lower section extends into the positioning boss downwards, and a fourth sealing ring is arranged between the circumferential surfaces of the small-diameter lower section and the positioning boss; a positioning hole is concavely arranged on the lower end surface of the small-diameter lower section, a positioning column is detachably connected on the bottom plate in correspondence, the positioning column extends into the positioning hole upwards to form an up-and-down sliding fit, and a first positioning pin is arranged between the large-diameter middle section and the base. The structure has a good piston positioning effect and is stable and reliable in movement.

In a method of machining workpieces in a gear grinding machine with a grinding tool having vitrified-bonded abrasive grains made of a superabrasive material. The grinding tool is first dressed. Subsequently, the dressed grinding tool is conditioned such that a desired wear condition is produced. Thereafter, pre-toothed workpieces are machined using the dressed and conditioned grinding tool. Conditioning prevents undesirable grinding-in behavior of the grinding tool, which can cause thermal damage to the edge zone of the workpiece. Conditioning is performed with a conditioning kinematics, which is different from the machining kinematics and may correspond to a dressing kinematics. For conditioning, a conditioning tool is used which has a basic shape that is different from the basic shape of the workpieces.

The application provides a gear grinding device for wind power deceleration device, and belongs to the technical field of gear machining. The device comprises a gear grinding machine, a clamping mechanism, a position adjusting mechanism and a polishing mechanism. The clamping mechanism is arranged in the gear grinding machine and is used for clamping a gear to be ground. The position adjusting mechanism is arranged on the top of the inner side of the gear grinding machine and is used for adjusting the position of the gear to be ground. The polishing mechanism is arranged on the position adjusting mechanism and is used for high-speed rotation of the gear to be ground and detection of the polishing position. The clamping mechanism and the position adjusting mechanism are arranged, the clamping mechanism is used for clamping and fixing straight gears with different sizes, and the straight gears are adjusted in multiple directions and spaces according to the positions of the straight gears in cooperation with the position adjusting mechanism, so that the work of grinding the gears is facilitated.

The application discloses a grinding wheel wear state online identification method and device based on current and acoustic emission signals, and relates to the technical field of gear machining control. The application carries out online monitoring on the wear state of the grinding wheel in the gear grinding process, combines multi-source grinding information of the spindle current signal and the grinding wheel acoustic emission signal to respectively obtain a current time-frequency domain multi-source feature vector reflecting macro load change and an acoustic emission time-frequency multi-scale feature matrix reflecting microscopic wear behavior, and further realizes accurate online identification of the wear state of the grinding wheel through the following steps: firstly, pre-splicing the two into a multi-channel input tensor through a grinding wheel wear state identification model; secondly, efficiently extracting multi-source multi-domain grinding features based on a high-efficiency convolutional neural network architecture; thirdly, modeling the extracted features in a time sequence feature to obtain accurate hidden states based on a bidirectional gate recurrent mechanism; and finally, realizing accurate online identification of the wear state of the grinding wheel through classification prediction.

The application discloses a positioning tool for a gear outer circle grinding machine, which comprises a mandrel, a bearing tray, a plurality of connecting holes and a connecting structure. The bearing tray is arranged on the mandrel, and a gear is coaxially arranged on the bearing tray. The plurality of connecting holes are arranged on the bearing tray in a circumferential direction at intervals, and a through hole corresponding to the connecting hole is arranged on the gear. The connecting structure is arranged on the connecting hole, and the gear is fixed to the bearing tray through the connecting structure. When the gear needs to be fixed to the mandrel for gear grinding process, the bearing tray is first installed on the mandrel. Then, the gear is installed on the bearing tray through the connecting structure, the connecting hole and the through hole on the gear, so that the gear and the mandrel are connected. The connecting hole arranged on the gear in a circumferential direction at intervals is used for fixing the gear. In the gear grinding process, the moment generated by the grinding force is small, and the stability of the gear in the grinding process is improved.

This invention discloses a device and method for precision machining of crankshaft gears in automobile engines, comprising: a machining base, with an operating box fixedly mounted on the top of the machining base. This invention relates to the field of precision machining technology for crankshaft gears. This device and method for precision machining of crankshaft gears in automobile engines, through the cooperation of a placement cam, an insert inner rod, a gear inner liner, a hydraulic rod, a gear grinding mechanism, and a reduction servo motor, can achieve efficient and high-precision machining of the gear grooves of multiple crankshaft gear models. The gear inner liner and the insert inner rod can quickly center and clamp crankshaft gears of different inner diameters, ensuring coaxiality with the placement cam. The gear grinding mechanism can be adjusted to accommodate multiple specifications of crankshaft gears, adaptively adjusting the gear groove inclination angle to improve surface quality and forming accuracy. The hydraulic rod drives the gear grinding mechanism to grind up and down, and the reduction servo motor drives the workpiece for precise indexing, enabling simultaneous machining of multiple grooves, resulting in high efficiency, good consistency, and strong versatility.

The utility model discloses a cooling liquid discharge mechanism relates to gear processing technical field, including work table, recycling box, filter mechanism and liquid pumping mechanism, and the top fixed mounting of work table has the fixed frame, and recycling box fixed connection is in one side of work table, and filter mechanism sets up between the liquid storage tank and recycling box, and liquid pumping mechanism sets up in one side of work table. The utility model discloses the setting mode of recycling box, filter mechanism and liquid pumping mechanism cooperation, utilizes filter mechanism and can filter the cooling liquid of adulteration waste chip, and the adulteration waste chip is transported to the recycling box in the storage through the filter belt of inclination, can filter the cooling liquid and handle, and through the scraper subassembly and the jet pipe and the spray head of setting, can remove the impurity chip of being stuck on the filter belt, to guarantee the persistence and stability of filter effect, and liquid pumping mechanism can again extract the cooling of filtered cooling liquid and carry out secondary utilization, avoid the waste of resources, convenient to use.

This application discloses an adaptive optimization method and system for the face gear grinding process. The adaptive optimization method for the face gear grinding process includes: obtaining the first coordinate value and the second coordinate value of the worm grinding wheel; determining the cumulative grinding depth and tooth width direction coordinate value based on the first coordinate value and the second coordinate value; determining the equivalent grinding force corresponding to the cumulative grinding depth and tooth width direction coordinate value when the cumulative grinding depth is less than a first preset grinding threshold; determining the first grinding force coverage rate corresponding to the cumulative grinding depth based on all equivalent grinding forces; determining the first grinding stage based on all equivalent grinding forces, the first grinding force coverage rate, and the grinding stage set when constructing a grinding stage set; determining the first grinding process parameters based on the first grinding stage; and performing grinding on the face gear based on the first grinding process parameters, thereby improving the grinding efficiency of the face gear.

This utility model discloses an oil control device for grinding machine chips, belonging to the field of grinding oil recovery technology. It includes a base, a loading barrel, a collection barrel, and a leak-proof oil tray. A first through hole is opened on the bottom side of the loading barrel, and a second through hole is opened on the lower surface of the loading barrel. Symmetrically distributed handles are fixedly connected to the surface of the loading barrel. A support column is fixedly connected to the surface of the base, and a mounting plate is fixedly connected to the surface of the support column. A cylinder is fixedly connected to the upper surface of the mounting plate, and the output end of the cylinder passes through the mounting plate and is fixedly connected to an oil-pressing plate. In this utility model, the loading barrel is first placed on the side of the base away from the oil-pressing plate. Then, grinding chips are placed inside the loading barrel. At this time, the grinding oil on the grinding chips flows into the base through the first and second through holes. Then, the loading barrel is pushed below the oil-pressing plate, and the cylinder extends, thereby pushing the oil-pressing plate downwards, so that the oil-pressing plate inserts into the loading barrel.

This invention relates to the fields of machine learning and tooth surface waviness prediction. It discloses a method, apparatus, and device for predicting the waviness of tooth surfaces ground by worm gear grinding. The method includes: acquiring vibration signals from the grinding wheel spindle in three directions during worm gear grinding of helical gears and annotating them with semantic information to obtain an annotated dataset; constructing a tooth surface waviness prediction model based on the Goose optimization algorithm and optimizing an Extreme Learning Machine (ELM); inputting the vibration signals from the annotated dataset into the tooth surface waviness prediction model, and iteratively optimizing the input weights and biases of the ELM using a parameter optimization module to obtain a trained tooth surface waviness prediction model; and real-time acquiring the vibration signals of the workpiece being processed, extracting features from the real-time vibration signals using a feature extraction module, and then inputting the extracted features into the trained tooth surface waviness prediction model to obtain the ghost-order amplitude of the tooth surface waviness. This invention can improve the accuracy and efficiency of waviness prediction for worm gear grinding.

A gear grinding inspection device includes an inner ring and an outer ring. Inner blocks are evenly distributed on the outer side of the inner ring, with a gap A between every two inner blocks. Outer blocks are evenly distributed on the inner side of the outer ring, with a gap B between every two outer blocks. The inner and outer rings are fixed together by a connecting fitting, which does not occupy the space of gaps A and B. A gear grinding inspection method is also provided. During inspection, the inner and outer blocks of the gear grinding inspection device cover the two ends of the two sides of the gear teeth, and the uncovered parts of the two sides of the gear teeth are observed. The color of the uncovered parts allows for quick and easy detection of whether the ground gear teeth are qualified. The inspection is convenient and fast.

This utility model provides a positioning device for saw blade tooth grinding, belonging to the technical field of saw blade processing equipment, including a saw blade and a positioning device. The positioning device consists of a base, a fixed block, a movable block, and multiple inclined positioning grooves. The positioning groove on the upper surface of the base is inclined at 60° to the front surface, adapting to the inclined surface of the bottom end of the saw blade, and cooperating with a multi-tooth grinding wheel to achieve inclined tooth profile grinding, improving cutting efficiency. The fixed block and the movable block are engaged with the saw blade head and connecting part through notches, combined with a 10° inclined surface clamping design to prevent the saw blade from shifting or tilting in the horizontal and vertical directions during grinding, ensuring positioning stability. The clearance groove is precisely matched with the bottom end of the saw blade, distributing the force and reducing processing errors. The movable block is detachable, facilitating saw blade loading and unloading, and making operation convenient. The grinding wheel shaft can rotate and swing up and down to compensate for the angle deviation of the grinding surface, achieving efficient one-time forming. This utility model solves the problems of unstable positioning, limited angle adjustment, and low efficiency of existing devices.

The utility model discloses a kind of internal gear gear grinding machine workpiece main shaft device, comprising: worm gear mechanism, and worm mechanism, wherein, the worm gear mechanism includes: workpiece main shaft, workpiece main shaft box is installed on the workpiece main shaft, index worm wheel is installed on the workpiece main shaft;The worm mechanism includes: double floating worm, the double floating worm is engaged with the index worm wheel, the end of the double floating worm is connected with power mechanism, and the power mechanism is installed on the workpiece main shaft box. By designing a set of meshing side gap adjustable high-precision double floating worm gear mechanism inside headstock, the precision of main shaft can be adjusted during working process, so that transmission efficiency is high, can bear larger load and torque, realize smooth transmission, and adjustment is simple, convenient for later maintenance.

Grinding systems and methods for semiconductor workpieces are provided. In one example, a grinding system includes a workpiece support operable to support a semiconductor workpiece and rotate the semiconductor workpiece about a first axis. The grinding system further includes a grind wheel operable to rotate about a second axis. The grind wheel has a plurality of grinding teeth arranged in a grinding ring on the grind wheel. A radius of the grinding ring is less than or equal to a radius of the semiconductor workpiece (e.g., such that an effective gap ratio between grinding teeth on the grind wheel are reduced).

This utility model relates to the technical field of grinding devices, and discloses a gear grinding device, including a clamp on a grinding machine. Multiple intersecting mounting grooves are provided radially on the upper side of the clamp, and a fixing component is provided within each mounting groove. The fixing component includes mounting blocks disposed opposite each other within the mounting grooves. Abutment plates are provided opposite each other on the upper sides of the mounting blocks, and a rotatable rotating plate is provided between the opposing abutment plates. Multiple rotating plates are used to abut against the outer wall of the bevel gear, and a locking element is also provided on the abutment plates. Through the setting of the driving component, the driving component can drive two corresponding mounting blocks to move closer or further apart within their respective mounting grooves, thereby causing the mounting blocks to move the corresponding abutment plates closer or further apart, so that the abutment plates press against the outer side of the bevel gear or the inner wall of the bevel gear shaft hole, thus fixing the bevel gear on the clamp.

The application relates to a variable-tooth worm and a processing method thereof, and relates to the technical field of worm structure, which comprises a variable-tooth worm composed of a shaft body and a thread tooth arranged on the shaft body, the lead of the thread tooth is constant along the overall length of the worm, the tooth root surface and the tooth top surface can be cylindrical surfaces or circular arc rotary surfaces, the thread tooth is formed by sweeping a linear blade along a space constant-lead variable-diameter helix, a mathematical equation of the helix is given, the related structural parameters of the thread tooth are specifically limited, the processing method of the variable-tooth worm is introduced, and the steps of rough and fine machining of a blank, slotting, heat treatment, gear grinding and the like are included, a five-axis linkage control is adopted for a numerical control machine tool, and the meshing of the worm wheel and the worm can form four to five pairs of continuously meshed contact areas. The application achieves the technical effects of optimizing the structural design of the variable-tooth worm, improving the machining precision and quality, and improving the meshing performance of the worm wheel and the worm.

This utility model discloses a grinding fluid circulation and filtration device, comprising two identical pump sets, a noise reduction component, a conveying component, and a filtration component. The noise reduction component is mounted on the pump sets, the conveying component connects the two pump sets, and the filtration component is mounted on the conveying component. The pump sets include a base and pump bodies (main and auxiliary pump bodies). The noise reduction component has a hinged soundproof cover, which is a double-layer steel plate structure (filled with sound-absorbing material) and has heat dissipation holes with inclined blades. The conveying component includes a main pipe A, a branch pipe A, a main pipe B, and a branch pipe B. A monitoring component containing an electromagnetic flow meter, a pressure sensor, and valve B is mounted on branch pipe B. This device improves reliability through parallel operation of the two pump sets, provides sound insulation and heat dissipation through the noise reduction component, and offers efficient filtration and easy drainage through the filtration component. Combined with the monitoring and control component, it achieves precise flow and pressure regulation, making it suitable for circulating and filtering grinding fluid in internal gear grinding.

The present application relates to gear manufacturing technical field, specifically to a kind of gearbox transmission gear manufacturing polishing device, including, operating platform, the bottom end of the operating platform is fixedly connected with driving motor by rack, the bottom end of the operating platform is fixedly connected with water storage tank, the upper end of the operating platform is provided with gear fixing device, the center of the gear fixing device is provided with conveying device, the present application is by being provided with gear fixing device, by the cooperation of sliding block, adjusting ring, insert rod and other components in gear fixing device, the position and quantity of mounting disc can be flexibly adjusted according to the number of transmission gear to be polished, adapt to different production needs.Simultaneously, adjusting mechanism of adjusting screw, carousel, abutment rod etc. in mounting assembly, can be adapted to transmission gear of different sizes, realize fast, stable fixation, improve the versatility and practicality of device, reduce the clamping adjustment time caused by gear specification difference, improve production efficiency.

This application discloses a precision grinding and polishing device for new energy vehicle gears, relating to the field of gear grinding and polishing. It includes an operating table with a drive assembly for rotating the gears and a grinding and polishing assembly for grinding and polishing the gears. The drive assembly includes a cavity inside the operating table. This application utilizes the coordinated arrangement of a rotating tube, a high-pressure air pump, and fan blades. In use, the gear is fitted onto the rotating tube, and the high-pressure air pump is activated, allowing gas to enter the cavity through the air supply pipe, blowing the fan blades to rotate the rotating tube. Simultaneously, the clamping assembly fixes the gear, causing it to rotate. The grinding and polishing assembly then grinds and polishes the gear, minimizing the problem of increased equipment costs caused by the inability to simultaneously clamp and rotate the gear using a single drive component.

The utility model relates to the technical field of annular gear grinding, in particular to an annular gear grinding device which comprises an annular gear, a blank tooth opening calibration assembly arranged outside the annular gear and an anti-collapse gear grinding mechanism installed in the blank tooth opening calibration assembly. The anti-collapse gear grinding mechanism comprises a transverse bearing beam rod, a nut installed on a threaded section of the bearing beam rod and a power-assisted disc movably installed outside the bearing beam rod. A pressure-bearing clamping seat and a limiting clamping seat which are accurately calibrated are arranged at the two ends of an annular gear, after the two clamping seats are closed, a notch exposed between the two clamping seats can be matched and symmetrical with a tooth opening of the annular gear, and a grinding piece stretching in a reciprocating mode along the notches in the two clamping seats can accurately grind the tooth opening of the gear; and when the two clamping seats are matched with the grinding piece to move, anti-cracking protection can be provided for notches in the two end faces of the gear.

This invention relates to the field of gear processing technology and provides a gear grinding device for the production of tricycle parts, including a lower support assembly. An upper support frame is fixedly connected to the top of the lower support assembly. An end-face grinding mechanism is provided on the outer wall of the lower support assembly. A tooth groove grinding mechanism is fixedly connected to the outer wall of the upper support frame. A fixing mechanism is provided on the inner wall of the upper support frame. A polishing component is fixedly connected to the rear side of the upper support frame. Through the arrangement of the lower support assembly, upper support frame, end-face grinding mechanism, tooth groove grinding mechanism, and polishing component, an automated and precise gear grinding system is constructed. This combination of mechanisms seamlessly connects the rough grinding, fine grinding, and cleaning processes, significantly reducing manual intervention, improving operational convenience and safety, and fundamentally solving the problems of difficult precision control and low efficiency in traditional methods, thus significantly improving the tooth profile accuracy and flatness of the gears.

This invention relates to a dressing method for a multi-threaded grinding worm (1) for gear grinding, the grinding worm (1) comprising multiple worm threads (2, 3), each worm thread being dressed by a dressing tool (4) having at least one dressing stroke (H1, H2, H3) to provide the desired profile for the grinding worm (1). To improve the method and obtain more reliable information on whether the dressing of the grinding worm is adequate by improving monitoring of the dressing, the method of the present invention includes: a) dressing the first worm thread (2), measuring and recording at least one process parameter (P1) during the dressing; b) dressing another worm thread (3), measuring and recording the process parameter (P1) during the dressing; c) after dressing all worm threads: combining the recorded process parameter (P1) data; d) comparing the combined data of the process parameters (P1) with the data stored in the machine controller, and checking whether the combined data is within a predetermined acceptable range; e) if the combined data is not within the predetermined acceptable range, outputting a signal.

This invention discloses an adjustment device and method for dynamic balancing of the grinding wheel shaft in a worm gear grinding machine. The device includes a fixed-side housing and a grinding wheel shaft connecting housing connected in series. A linear motor stator is disposed within the fixed-side housing, and at least three linear motor movers are evenly arranged within the stator. Each linear motor mover is connected to a gear via a transmission mechanism, with the gear threaded onto the transmission mechanism. The gear is located within the grinding wheel shaft connecting housing, and limiting mechanisms restricting its axial movement are provided at both ends of the gear. A through hole is provided tangentially to each gear on the grinding wheel shaft connecting housing, and a mass block is disposed within each through hole. A rack is disposed on the surface of the mass block, meshing with the gear. The included angle between the axes of motion of adjacent mass blocks in space is equal. By changing the moment of inertia of the grinding wheel shaft and compensating for the reduction in moment of inertia caused by grinding wheel wear, online dynamic balancing of the grinding wheel shaft in the gear grinding machine can be achieved.

The application discloses a grinding wheel spindle part for a remanufactured gear grinding machine and an assembling process method thereof, and belongs to the technical field of machine tool remanufacturing. The spindle part adopts a direct drive structure of a synchronous motor and a grinding wheel spindle. The grinding wheel spindle is supported by high-precision angular contact ball bearings at the front end and the rear end. The front end is provided with a multiple sealing structure of a labyrinth seal, an air seal, a sealing ring stack and a spacer ring. The rear end is provided with an incremental rotary encoder to realize full closed-loop control. Meanwhile, an internal grinding wheel dynamic balancing device with AE function, a grinding wheel cover automatic overturning mechanism and an elastic unloading groove are arranged at the short conical surface of the grinding wheel flange. The assembling process comprises four core steps of part pretreatment, direct drive structure hot assembly, supporting structure assembly and functional part assembly. The application significantly improves the spindle speed, grinding efficiency, supporting rigidity and automation level, effectively guarantees the long-term stability of the gear grinding precision, and perfectly adapts to the low-cost and high-performance remanufacturing upgrading demand of the old numerical control gear grinding machine.