36results about How to "High rotation accuracy" patented technology

The invention belongs to the technical field of numerical control machine tool spindles, and discloses a worm grinding wheel gear grinding machine spindle online dynamic balance method and device, and the method comprises the steps: S1, building a worm grinding wheel gear grinding machine spindle motion model; s2, designing a built-in dynamic balance device of the grinding wheel spindle; s3, acquiring vibration data of the main shaft in a running state in real time; s4, the unbalance amount is calculated, and the dynamic balance device is adjusted; and S5, vibration data are repeatedly obtained and adjusted until the radial runout of the main shaft is lower than a set threshold value. The method can effectively reduce the vibration of the main shaft and improve the rotation precision by acquiring the vibration data of the main shaft in real time and adjusting the built-in device. The device comprises a shaft core, a balance tile, a driving motor and an adjusting assembly. The driving motor transmits torque to the balance tile through the adjusting assembly, and the relative position adjustment of the balance tile relative to the radial direction of the shaft core is achieved. The device is simple in structure and convenient to install, high-precision real-time dynamic balance is achieved through cooperation of the built-in balance tile, the adjusting assembly and the like, and the system reliability is improved.

The embodiment of the invention provides a horizontal type primary-secondary exchange workbench. The horizontal type primary-secondary exchange workbench comprises a workbench base; the working table mother disc is connected with the working table base through a special rotary table bearing; the working table sub-disc is connected with the working table mother disc through a zero point positioning system; the power transmission system is connected with the workbench mother disc and provides a power source; the brake system is connected with the workbench mother disc and provides brake force; the angle feedback system comprises an encoder fixing seat and an angle transmission flange, the encoder fixing seat is connected with the workbench base, the angle transmission flange is connected with an oil way distribution inner ring, and the oil way distribution inner ring is connected with the workbench mother disc; and the oil path and gas path butt joint system is arranged between the workbench base and the workbench mother disc. The power transmission system selects a proper transmission structure according to specific working conditions, the angle feedback system monitors the rotating angle of a workbench mother disc in real time through an angle encoder, and full-closed-loop control is achieved through matched use of a high-precision angle encoder and a bearing special for a rotary table.

The invention relates to the technical field of laser measurement, in particular to a pivot base multi-dimensional error detection device based on laser scanning, which comprises a laser measurement device and an intermittent annular conveying device, a plurality of tooling plates are arranged on the intermittent annular conveying device, a driving assembly is arranged on the intermittent annular conveying device, and the driving assembly is connected with the laser measurement device. A mounting box is arranged on the tool plate, and an angle conversion assembly and a rotating assembly are arranged in the mounting box; through organic cooperation of three core mechanisms of transmission and driving time sequence cooperation, rotation and revolution mode switching and layered elastic driving, key problems of multi-degree-of-freedom cooperative control, single ball head motion function, driving failure in an inclined state and the like of an existing laser measurement system are effectively solved. And the completeness of workpiece three-dimensional form and position error detection is obviously improved.

This invention discloses a fully automatic metal honeycomb core automatic layout and cutting device, belonging to the field of metal cutting technology. It solves the technical defects of existing metal honeycomb core cutting equipment, such as core cell crushing and edge chipping, difficulty in active avoidance by the circular saw blade, and incomplete automated layout. The device includes a frame assembly, a workpiece feeding mechanism, a workpiece positioning unit, a workpiece clamping structure, a circular saw blade cutting moving component, a workpiece rotation mechanism, and a CNC control system. These systems work collaboratively to achieve fully automatic layout and cutting of the metal honeycomb core panels. The circular saw blade cutting moving component drives the circular saw blade to descend to the workpiece surface for follow-up cutting. After cutting, it actively avoids obstacles through lifting and lateral movement. The workpiece rotation mechanism is integrated with the workpiece clamping structure, enabling precise rotation of the honeycomb core. Combined with the fully automatic layout software built into the CNC system, it achieves a closed-loop automatic layout and cutting process.

The application discloses an active unloading type liquid static pressure spindle and relates to the technical field of liquid static pressure spindles.The active unloading type liquid static pressure spindle comprises a spindle, a tray is fixedly arranged at the upper end of the spindle, a conical roller bearing is fixedly arranged at the lower part of the spindle, a radial bearing is fixedly arranged between the tray and the conical roller bearing on the spindle, an inner shell is sleeved outside the radial bearing and the conical roller bearing, a ring-shaped groove is oppositely formed in the middle of the upper and lower end faces of the inner shell, and an upper cover plate and a lower cover plate are respectively fixedly installed in the ring-shaped groove.The radial bearing limits the spindle in the radial direction, the conical roller bearing limits the spindle in the radial direction and the axial direction, the spindle is prevented from being displaced in the axial direction and the radial direction during operation, the transmission efficiency of the spindle and the stability of operation are improved, the machining precision of the machined objects on the tray is prevented from being affected, the appearance of defective products caused by precision is reduced, and the machining quality is improved.

The application provides a bearing seat, an electric spindle assembly and a numerical control machine tool. The bearing seat comprises an outer seat body, an inner seat body, a damping structure and a cooling channel. The outer seat body forms an outer chamber, and the inner seat body is arranged in the outer chamber. A damping cavity is formed between the inner seat body and the outer seat body, and the damping structure is arranged in the damping cavity. The cooling channel is formed in the outer seat body, the inner seat body or the damping structure. The cooling effect and the damping effect are considered, the damping structure improves the support damping between the inner seat body and the outer seat body, and the vibration between the inner seat body and the outer seat body can be absorbed. The cooling liquid is introduced into the cooling channel, the heat generated by the high-speed rotation of the bearing can be taken away, the thermal deformation of the bearing and the bearing seat is prevented, the rotation accuracy of the electric spindle and the stability of the electric spindle operation are improved. The damping structure is formed by injecting a hot-melt glue type material into the damping cavity and solidifying, and the pressure of the damping cavity is not adjustable. The damping structure is formed by injecting metal powder, silicon oil or hydraulic oil into the damping cavity, and the pressure of the damping cavity is adjustable.

The utility model discloses double-color mold forming equipment which comprises a base, a plurality of supporting legs are arranged at the bottom of the base, a fixing seat is installed on the base, a driving assembly is arranged on the fixing seat, and a mold assembly is arranged on the driving assembly. After injection molding is completed, the cooling machine is driven by the control module, so that cooling liquid is pumped into the cooling seat, a model in a female mold is cooled, the model can be conveniently taken out or injection molding of a next color is conveniently carried out, the rotating accuracy of the driven gear can be improved by arranging the positioning mark and the arc-shaped rotating frame, mold assemblies can be conveniently butted, and the production efficiency is improved. And errors caused by rotation are reduced.

The utility model discloses a novel universal shaft assembly, including bottom plate, be provided with fixed subassembly on the bottom plate, the fixed subassembly includes mounting seat, fixed base, bolt, first axle body and second axle body, the mounting seat fixed mounting is at the both ends of bottom plate's top, the fixed base can be detached and installed on the mounting seat, the bolt can be detached and installed between fixed base and mounting seat, first axle body and second axle body are placed on the mounting seat respectively, be provided with disassembly subassembly on the fixed base, the disassembly subassembly includes oil injection pipe, connecting pipe and resist the pole, oil injection pipe fixed mounting is on the fixed base, connecting pipe fixed mounting is on the oil injection pipe, resist the pole sliding connection on the connecting pipe, to solve the background art mentioned in the installation fixed time of current universal shaft, although the traditional method can ensure the firmness of universal shaft, when universal shaft needs to maintain or replace, the more complicated technical problem.

The utility model provides a kind of high torque planetary reducer belongs to speed reducer technical field.It solves the torque small technical problem of existing planetary reducer.The high torque planetary reducer, including shell and end cover, inner ring gear is fixedly arranged in shell interior, planetary gear engages sun gear shaft and inner ring gear, planetary gear is set in planet carrier by planet shaft, planet carrier is rotatably connected by first bearing with sun gear shaft;Sun gear shaft is connected with motor output end outside end cover one end;Second bearing is equipped between sun gear shaft and end cover, the other end of sun gear shaft is stretched out outside planet carrier, and is rotatably connected with output shaft by second bearing;Output gear is fixedly installed on planet carrier, output gear is engaged with output gear ring and synchronous belt drive output gear ring rotation, and output gear ring is fixedly connected on output shaft;The other end of output shaft is stretched out outside shell outside.The utility model enhances output torque capacity and overall rigidity, optimizes transmission path, reduces vibration and noise.

The utility model relates to the technical field of stage lamps, in particular to a stage lamp with a case provided with an integrated rotating shaft, which comprises a lamp holder used for generating light beams, a supporting arm used for supporting the lamp holder to rotate and a bottom case used for supporting the supporting arm to rotate. The bottom case comprises a top plate, a bottom base plate and side plates which are supported between the top plate and the bottom base plate and jointly define a cavity, and the supporting arms and the bottom case are in pivot joint through rotating assemblies. The rotating assembly comprises a shaft sleeve and a pivoting shaft which are pivoted with each other; wherein the shaft sleeve is fixedly arranged on the supporting arm; and the pivoting shaft is integrally formed on the top plate of the bottom case. According to the stage lamp with the integrated rotating shaft case, the connection strength and the structural stability of a pivoting structure of the bottom case of the stage lamp can be improved, the internal space layout of the bottom case of the stage lamp can be optimized, and the waterproof performance of the bottom case can be improved.

The invention relates to an integrated camera control structure in the technical field of camera lens control. The integrated camera control structure comprises a lens gear, a driving motor and an axial limiting ring, the lens gear is of an annular gear structure and is suitable for being meshed with a camera lens. The driving motor is located below the lens gear, a motor gear is arranged above the driving motor, the motor gear is meshed with the lens gear, and the driving motor drives the motor gear and the lens gear to rotate; the axial limiting ring is of an annular structure and located above the lens gear, the axial limiting ring and the lens gear are located on the same axis, and the axial limiting ring is fixed to the camera lens and can do up-down telescopic motion along with the camera lens. The camera integrated control structure is close in cooperation, and the lens adjusting precision and the transmission efficiency are high.

This invention discloses an integrated double-cycloidal pinwheel joint module and robot. The module includes a motor input module, an eccentric transmission module, an output module, a pin tooth fixing module, a housing, a driver, and an encoder. The motor input module uses a frameless torque motor as the power input, with its rotor fixedly connected to the motor input component. The eccentric transmission module includes an eccentric shaft and a cycloidal wheel, forming a cycloidal pinwheel reduction mechanism. The output module is equipped with a magnetic ring. The pin tooth fixing module is fixedly connected to the motor stator and has pin teeth installed. The core structure of the reducer, composed of the eccentric transmission module, the output module, and the pin tooth fixing module, is built into the stator of the frameless torque motor, greatly compressing the axial space. The magnetic ring and the first encoder are spaced apart from the motor rotor, allowing direct reading of output data. A custom-made flexible flat cable connects the motor and the driver, resulting in a thin profile and small space occupation. This invention has the advantages of compact structure, high integration, high transmission accuracy, high rigidity, and long service life.

The utility model discloses an automatic assembling mechanism of an injection molding part wire spool in the technical field of assembling mechanisms, which comprises a suction cup device, the center of the suction cup device is rotatably connected with a positioning column through a pressure bearing, the upper part of the positioning column is provided with a hydraulic cylinder, and a piston rod of the hydraulic cylinder is fixedly connected with the positioning column. A lead screw conveying device used for driving the hydraulic cylinder to move is arranged on the upper portion of the hydraulic cylinder. The center of the suction cup device is designed to be rotationally connected with the positioning column through the pressure bearing, the hydraulic cylinder is used for driving the positioning column to move up and down, efficient and accurate assembly of the wire spool cover and the wire spool barrel is achieved, and the suction cup device can stably grab the wire spool while the pressure bearing is introduced; and the wire spool is allowed to freely rotate around the positioning column. By means of the design, the flexibility of the equipment in the assembling process is remarkably improved, and particularly when multi-angle adjustment needs to be conducted on the wire spool, position correction can be rapidly completed.

This application discloses a grinding wheel dresser spindle, including a rotating shaft unit at the left end and an unloading unit at the right end. An annular positioning groove is provided in the middle of the housing, and a spring sleeve is installed there. The rotating shaft is fitted inside the cavity of the housing, and bearing assembly I and bearing assembly II are installed on the outer surfaces of both ends of the rotating shaft. A spacer is provided between bearing assembly I and bearing assembly II. An externally threaded nut I is installed on the right section of the rotating shaft. An end cover is installed at the left end of the housing; a recessed structure is provided at the left end of the end cover to install a skeleton oil seal. A dust cover is fitted on the outside of the end cover. This grinding wheel dresser spindle, by using an annular positioning groove inside the housing to fit and install a fixed spring sleeve, adjusts the bearing preload and maintains the stability of the spindle's rigidity. The unloading unit reduces the bending effect of radial force on the rotating shaft, improving the rotational accuracy of the shaft. The multi-layered sealing dustproof structure effectively prevents dust and wastewater from entering the spindle, extending its service life.

The utility model discloses a harmonic drive type arc trimmer. Including bottom plate, curvature coarse adjustment unit, curvature fine adjustment unit, high accuracy rotation unit, diamond pen, the curvature coarse adjustment unit includes coarse adjustment support, and the coarse adjustment support is set up on the bottom plate and can move to X axle direction, and the coarse adjustment support is C type structure, the high accuracy rotation unit includes rotation frame, rotation rigid drive unit, and the rotation rigid drive unit sets up on the coarse adjustment support, and the rotation frame is fixedly arranged in the inner chamber of coarse adjustment support, and the rotation frame is C type structure, and the outer diameter of rotation frame cooperates with the inner diameter of coarse adjustment support, and the rotation rigid drive unit is connected with rotation frame, the curvature fine adjustment unit includes fine adjustment drive unit, sliding mechanism, and the sliding mechanism sets up in rotation frame, and the diamond pen sets up on the sliding mechanism, and the fine adjustment drive unit is connected with sliding mechanism, the rotation rigid drive unit, fine adjustment drive unit all include servo motor, harmonic reducer, and the servo motor is connected with harmonic reducer. The utility model improves the stability of product quality, and guarantees the arc profile degree numerical stability that trims out.

The utility model provides an anti-play windscreen wiper motor, which comprises a motor, a connecting cover body, a gear shaft box, a gear shaft box cover, a bearing seat, a bearing protecting cover and an output shaft, and is characterized in that the connecting cover body is fixedly arranged at one end of the motor, the gear shaft box is arranged on the connecting cover body, and the gear shaft box cover is fixedly arranged on the gear shaft box and is fixedly arranged in a vehicle body; the bearing seat is fixedly installed on the surface of the gear shaft box cover, the bearing protecting cover is fixedly installed on the surface of the bearing seat, and the output shaft is meshed with a gear shaft in the gear shaft box and extends outwards after penetrating through a bearing in the bearing seat. Through the arrangement of the gear shaft box cover, the bearing seat and the output shaft, the motor shaft body cannot move, the stability of the shaft body is high, and the overall strength is high.

The utility model discloses a kind of clutch lifting devices, including clutch mechanism, output shaft mechanism and sliding table mechanism, the output shaft mechanism is inserted to the inside of clutch mechanism, the sliding table mechanism is provided on the clutch mechanism, the clutch mechanism includes worm mechanism, clutch shaft mechanism, disc spring, clutch washer and cap mechanism. The utility model and the recessed and protruding block setting on clutch shaft mechanism select appropriate step height and angle, can reduce working torque and improve rotation accuracy;When the output shaft mechanism is blocked by external force and cannot rotate normally, worm mechanism can still drive clutch shaft mechanism to operate, and in order to prevent motor from burning due to long-time block, the recessed and protruding structure with slope that is set between worm mechanism and clutch shaft mechanism cooperates, can make worm mechanism overcome disc spring counterforce under certain conditions, force clutch shaft mechanism to be pressed away from a certain height.

This invention relates to the field of fixing fixture technology and discloses a fixing fixture for precision bearing machining, including a reinforcing table. A machining table is fixedly connected to the bottom of the reinforcing table, and a machining shaft is mounted on the top of the reinforcing table. The inner wall of the reinforcing table is provided with a clamping mechanism. When the machining shaft is placed on the reinforcing table by a machine or by a worker, the machining shaft can be clamped by a motor or turntable rotating to drive the clamping plate to move. This prevents displacement due to cutting forces, vibrations, and other factors during machining, thereby improving the rotational accuracy and service life of the machining shaft. While clamping, the movement of the clamping plate drives the pressure plate to reinforce the bearing, preventing damage to the surface of the precision bearing. This contributes to the consistency of machining accuracy and quality, reduces dimensional deviations and surface quality differences caused by different clamping forces, and greatly improves machining efficiency.

This utility model discloses an electronic parking brake actuator, comprising a gearbox, a primary gear transmission assembly, and a secondary gear transmission assembly. The gearbox includes an upper housing and a lower housing. The upper housing has a first positioning groove and a second positioning groove, and the lower housing has a third positioning groove. The primary gear transmission assembly includes a first gear, a second gear, and a positioning shaft coaxially arranged. The positioning shaft passes through the first positioning shaft hole and the second positioning shaft hole, and includes a first end and a second end. The first end is fixed at the first positioning groove, and the second end is fixed at the third positioning groove. The secondary gear transmission assembly includes a third gear, a sun gear, and a positioning ring coaxially arranged. The sun gear and the positioning ring are integrally injection molded, the third gear is fixedly connected to the sun gear, and the positioning ring is disposed in the second positioning groove. This utility model can improve the strength and durability of the gear transmission mechanism.

The utility model discloses a mechanical structure for realizing water discharge at the center of a main shaft in the technical field of numerical control machine tools, which comprises a main shaft body, a shaft core is fixedly connected with a fixing sleeve through a first screw, an unclamping ring penetrates through the fixing sleeve to be connected with a broach mechanism, and the unclamping ring and the broach mechanism are fixedly connected through a second screw. Sealing rings are arranged at the rear end of the broach mechanism and an inner hole of the fixing sleeve, protruding structures are fixedly connected to one side of the broach ring, the through groove holes correspond to the protruding structures in number and shape in a one-to-one mode, a radial gap exists between the through groove holes and the protruding structures, the through groove holes are fixedly connected with the shaft core through the fixing sleeve, high rotation precision can be achieved, and the broach ring and the fixing sleeve supplement each other in structure. Force transmission is achieved, and therefore reciprocating motion of the broach mechanism is achieved.

A substrate inspection apparatus includes a rotary stage having a placement surface, a rotary stage support portion, a suction mechanism having a suction device and a suction path connected to the suction device at one end side and located at the placement surface at the other end side, the suction path being suctioned by the suction device to thereby suction a circuit substrate to the placement surface, a flow rate detection portion detecting a flow rate of gas flowing in the suction path to a portion located in the rotary stage support portion, a flow rate determination portion determining whether the flow rate of the gas detected by the flow rate detection portion is equal to or greater than a predetermined value, a non-contact detection portion non-contactly detecting a placement state of the circuit substrate on the placement surface, and an inspection portion performing an inspection of the circuit substrate based on detection results obtained by the flow rate determination portion and the non-contact detection portion.

The present application relates to the field of polishing technology, and particularly relates to a soaking type outer circle polishing equipment, which comprises a rack, a product fixture driving system arranged on the rack, a driving assembly capable of moving up and down and an auxiliary tailstock, a quick chuck being arranged on the driving assembly and used for clamping and driving a reverse product fixture to rotate, a lower disc moving system being movably arranged on the rack and located below the product fixture driving system, a brush roller assembly arranged on the lower disc moving system, the brush roller assembly having a hollow cylindrical brush roller, an inner wall of the brush roller being provided with polishing brushes, the polishing brushes being used for accommodating and wrapping a product to be processed clamped by the product fixture driving system so as to perform wrapped polishing on an outer circle of the product to be processed, and a polishing liquid tank arranged on the rack and located below the brush roller assembly, the polishing liquid tank being a box structure with an upper opening and being used for accommodating polishing liquid and making the brush roller assembly and the product to be processed completely soaked in the polishing liquid.

The application discloses a watch and an assembling method, and belongs to the technical field of watches, wherein the watch comprises a bezel mechanism and an ear mechanism, the bezel mechanism is provided with a first watchband seat, the ear mechanism is provided with a second watchband seat and a supporting seat, the second watch seat is installed in the circumferential direction of the supporting seat, a gap is formed between the second watch seat and the supporting seat, the gap is used for accommodating the first watchband seat, so that the outer wall of the first watchband seat is in abutment with the inner wall of the second watchband seat, the first watchband seat is provided with a buckle assembly, the supporting seat is provided with a positioning groove in the circumferential direction, and the positioning groove is used for accommodating the buckle assembly; the bezel mechanism is used for rotating with the ear mechanism; when the ear mechanism is installed or dismounted, only a certain torsion force needs to be applied to the bezel mechanism, the bezel mechanism is rotated relative to the ear mechanism, the first watchband seat is moved out of the gap, and the buckle assembly is separated from the positioning groove; so that the bezel mechanism is separated from the ear mechanism, and the ear mechanism can be quickly installed or dismounted.

The application discloses a kind of air bearing supported turntable structure of air float turntable technical field, including support seat, motor stator and motor rotor are installed in the inside of support seat, the center of motor stator is connected with the axle, the top of axle is equipped with bearing turntable;Brake frame is installed at the top of support seat, brake plate is connected with the inside of brake frame by elastic expansion piece, the top of brake plate is equipped with brake block compatible with the bottom brake groove of bearing turntable, the present application solves the existing air float turntable in the power of clamping control basically comes from air pressure, if air float turntable internal air pressure is insufficient or no air pressure, clamping effect can be greatly reduced, leading to air float turntable can continue to rotate, the precision of control is poor, and air float turntable is used before, when air pressure is not sufficient friction is greater, it can still rotate, easy to bring certain wear to air float bearing, affect component precision, not conducive to people use problem.

The invention discloses a sulfur nitrocarburizing process method for surface treatment of a cylinder body and a plunger, which comprises the following steps: S1, cleaning the cylinder body or the plunger to clean up oil dirt; s2, the cylinder body or the plunger is put into a preheating furnace to be preheated; s3, the cylinder body or the plunger is subjected to salt bath nitriding treatment to form a sulfur-nitrogen carbide layer; s4, the cylinder body or the plunger is subjected to salt bath oxidation treatment, so that an oxidation layer is formed on the surface of the cylinder body or the plunger; and S5, the cylinder body or the plunger is cleaned. By adopting the process method to treat the cylinder body and the plunger, the surface microstructures of the cylinder body and the plunger are more uniform and continuous, and the sulfur-nitrogen carbide layer and the nitrogen-carbon compound layer are formed on the surfaces of the cylinder body and the plunger, so that the wear resistance, the fatigue resistance, the lubricating property and the seizure resistance of the cylinder body and the plunger are remarkably improved, and the adhesive wear resistance is enhanced; the stress between the cylinder body and the plunger is more uniform, the friction coefficient of the surfaces of the cylinder body and the plunger is reduced, and the phenomenon that the cylinder body and the plunger are strained and stuck can be avoided.

The utility model relates to the field of bearings, and discloses a double-row series angular contact ball bearing, which comprises an outer ring (10) and an inner ring (11), two rows of rolling bodies (12) are arranged between the outer ring (10) and the inner ring (11), the outer ring (10) surrounds the outer side of the inner ring (11), at least two flanges (101) used for being connected with a supporting unit are arranged at the end part of the outer ring (10), all the flanges (101) are uniformly distributed on the outer ring (10), and the inner ring (11) is arranged on the outer ring (10). And the flange (101) is provided with a mounting hole (102) for a bolt to pass through. A flange is additionally arranged on the outer ring and connected with the end face of the supporting unit through a bolt, higher connecting strength can be provided, axial pre-tightening force can be generated, and therefore the rotating precision of the bearing is improved, the rigidity of the bearing device is improved, the number of rolling bodies borne in the bearing is increased, the rationality of load distribution in the bearing is improved, and the service life of the bearing is prolonged.

The invention relates to an inner wall in-situ laser coaxial fuse additive manufacturing device and method, and belongs to the technical field of additive manufacturing. The wire feeding and laser system is connected with the three-position compound system through threads, the supporting system is arranged on the three-position compound system in a sleeved mode, and the steering knuckle is connected with the three-position compound system through a screw and connected with the robot connecting end through a bolt. The laser wire feeding head has the advantages of being novel in structure, avoiding winding of a water cooling pipeline and a protective gas pipeline caused by rotation and extension of the laser wire feeding head during working, guaranteeing continuous and stable operation, remarkably reducing abrasion, improving rotation precision and prolonging the service life. The device is accurately positioned and reliably fixed in the center of the pipeline, and the adaptive capacity of the device to a complex pipeline line is expanded.

The application relates to the technical field of bearing machining equipment, improves the problem that workpieces are prone to jumping during centerless grinding, and discloses a bearing ring grinding device which comprises a rack, a grinding wheel arranged on the rack, a guide wheel and a cooling mechanism, a jump-preventing mechanism and a bracket for supporting a workpiece are arranged between the grinding wheel and the guide wheel; the bracket comprises a supporting plate; the jump-preventing mechanism comprises an air suction pipe, an air outlet pipe, a first fan connected with the air suction pipe and a second fan connected with the air outlet pipe, a top surface of the supporting plate is provided with an air suction groove, one end of the air suction pipe far from the first fan is communicated with the air suction groove, and an air outlet of the air outlet pipe is arranged above the rack and close to the direction in which the workpiece enters. When the bearing ring passes through the bracket, the first fan generates suction to the bearing ring in the direction close to the bracket through the air suction groove, so that the jumping of the bearing ring is reduced, the second fan separates the arranged bearings through the air outlet pipe, the mutual influence between the bearing rings is reduced, and the rotary precision of the bearing ring grinding can be improved.

The utility model discloses a slide platform integrated built-in motor direct drive power tower, apply in lathe field, the utility model discloses a motor direct drive, there is no bevel gear transmission, there is no bevel gear transmission can produce, power torque loss and gear wear, gear clearance big etc.