482results about "Spherical surface grinding machines" patented technology

The invention discloses a multi-channel numerical control grinding machine tool for machining an outer spherical surface structure of a ball head, and relates to a grinding system for machining an outer spherical surface of a medical thighbone ball head. The multi-channel numerical control grinding machine tool is high in machining precision and production efficiency. The multi-channel numerical control grinding machine tool comprises a composite workbench and a linear servo driving module, wherein a workpiece servo main shaft module is arranged on the composite workbench; a grinding servo main shaft module is arranged on the linear servo driving module; the composite workbench comprises a vertical servo rotating shaft, and a workpiece servo feeding sliding table is arranged on the vertical servo rotating shaft. The workpiece servo main shaft module comprises a workpiece inner positioning and clamping fixture; an automatic online detection module is arranged on one side of the workpiece servo main shaft module; a linear servo sliding table is arranged on the linear servo driving module, and power of the linear servo sliding table is provided by a linear motor; a grinding floating cutter handle is installed on the grinding servo main shaft, and a cutter assembly is installed on the grinding floating cutter handle.

The invention discloses a spherical part grinding machine in the technical field of grinding machines, which comprises a cabinet, a rack is arranged in the cabinet, an outer grinding mechanism and an inner grinding mechanism which are matched with each other are arranged at the upper part of the rack, the outer grinding mechanism is matched with an outer grinding transverse moving mechanism and an outer grinding longitudinal moving mechanism, and the inner grinding mechanism is matched with an inner grinding longitudinal moving mechanism. A grinding mechanism is arranged on the lower portion of the rack and matched with the outer grinding mechanism and the inner grinding mechanism. According to the coating polishing device, automatic polishing of the interior and the exterior of the spherical part can be achieved, manual transfer is not needed, time and labor are saved, the production efficiency is higher, the fine coating polishing process is achieved, and the repeatability of the process is improved while the maximum uniformity of coating removal is guaranteed.

The utility model discloses a ball valve ball core surface turning and polishing device which comprises a base, a support is fixedly connected to the surface of the base, a moving assembly is arranged on the surface of the base and used for driving a placing base to move, and a stabilizing mechanism is arranged on the surface of the placing base and used for stably placing a ball valve ball core. The utility model relates to the technical field of ball valve ball core machining. According to the surface turning and polishing device for the ball valve ball core, a stabilizing block is sleeved with the ball valve ball core, a stabilizing motor is started to drive a second gear to rotate, the second gear drives a sliding bolt to slide from inside to outside, the sliding bolt drives a telescopic rod to slide from inside to outside along the inner surface of a telescopic groove, and the telescopic rod drives the stabilizing block to move all around; and the stable block is tightly connected with the inner surface of the ball valve ball core, so that the ball valve ball cores with different sizes can be stably placed on the operation table, the situation that the turning and polishing quality is influenced by deviation is reduced, and the practicability of the turning and polishing device is improved.

The invention relates to the technical field of grinding and polishing, and discloses a grinding and polishing machine based on industrial robot operation, which comprises an I-shaped supporting table, a rotary clamping mechanism and a grinding mechanism, the rotary clamping mechanism comprises a main shaft rotationally connected with the I-shaped supporting table, a concentric-square-shaped supporting frame is arranged at the end, away from the ground, of the main shaft, two sliding sleeves are arranged on the two sides of the supporting frame correspondingly, the two sliding sleeves on the same side of the supporting frame are symmetrically arranged relative to the center of the supporting frame, and lateral ejector rods are slidably connected into the sliding sleeves. The end, away from the main shaft, of the supporting frame is slidably connected with a middle ejector rod collinear with the axis of the main shaft. The lateral ejector rods and the middle ejector rod extend out at the same time to abut against the outer wall of the spherical shell through the ejection assembly, so that the interior of the spherical shell can be fixed, the exterior of the spherical shell is completely not shielded, and after the spherical shell is clamped only once, polishing treatment of the whole outer wall can be completed through the polishing head.

The invention discloses a precise fluid valve body polishing device which comprises a base, a fixing frame is integrally formed in the middle of the base, pushing assemblies are arranged at the two ends of the inner side of the base, a valve element fixing device is arranged between the two pushing assemblies, and a valve element is driven to move horizontally through telescopic cooperation of the two pushing assemblies. And the cylindrical shell continues to move for grinding until the corner is ground, and the pushing assembly at the corner is withdrawn, so that the purpose of grinding the valve element of the ball valve without dead angles by using a traditional grinding disc is integrally achieved, grinding can be carried out regardless of the size and specification, the problem of traditional manual grinding is solved, and the grinding efficiency is improved. And the problem that polishing of various specifications cannot be achieved through an existing customized arc-shaped polishing piece is solved.

The invention discloses a hemispherical harmonic oscillator inner surface processing path correction method, a hemispherical harmonic oscillator inner surface processing method and a hemispherical harmonic oscillator inner surface processing device. The correction method comprises the following steps: processing the inner surface of a hemispherical harmonic oscillator test article based on a set processing path; measuring the radius of the inner sphere of the processed test article, calculating the deviation of the radius of the inner sphere based on the measured value and the design size, obtaining the compensation amount of the Z-axis direction of the processing route based on the deviation, and performing reverse compensation on the Z-axis coordinate of the terminal point of the processing route to obtain a first corrected processing route; reprocessing the hemispherical resonator test article based on the first correction processing route; and measuring the diameter of an inner support column of the test article, calculating translation deviation based on a measured value and a design size, taking the translation deviation as the compensation amount of the X-axis direction of the machining route, and performing reverse compensation on the X-axis coordinates of all points of the first correction machining route to obtain a second correction machining route. The machining method can ensure that the size and the geometrical shape of the machined hemispherical harmonic oscillator are within the design tolerance range.

The invention provides a three-axis three-phase variable-speed ultraprecise microsphere grinding and polishing device and a grinding and polishing method, and belongs to the technical field of high-precision spherical part machining. By adjusting three sets of servo grinding head assemblies, output shafts (a first shaft, a second shaft and a third shaft) of the three sets of servo grinding head assemblies intersect at the sphere center of a machined sphere; the alignment precision of the three servo grinding head assemblies relative to the center of the ultra-precision microsphere is improved; meanwhile, output shafts of the three servo grinding head assemblies are controlled to rotate at a variable speed according to the sine rule, it is guaranteed that the motion trails formed by the three servo grinding head assemblies are evenly distributed on the surface of the machined ball and can completely wrap the surface of the machined ball, and sliding of the ultra-precise microspheres in the machining process is avoided; and the stability in the ultra-precision microsphere processing process can be ensured.

The utility model relates to the technical field of steel ball quenching, and discloses novel bearing steel ball quenching equipment which comprises a base, the top of the base is fixedly connected with a quenching pool, one side of the top of the quenching pool is fixedly connected with a baffle, one side of the baffle is fixedly connected with a motor, the output end of the motor is fixedly connected with a brush roll shaft, and the brush roll shaft is fixedly connected with a motor. And a cleaning box is fixedly connected to the top of the other side of the baffle, supporting plates are fixedly connected to the two sides of the top of the quenching pool, a dust suction machine is fixedly connected to the tops of the supporting plates, a dust suction pipeline is fixedly connected to a port of the dust suction machine, and a filter screen is installed on the inner wall of the dust suction pipeline. According to the steel ball cleaning device, the motor is started to drive the brush roll shaft to clean the surfaces of steel balls in the cleaning box, and then the dust suction pipeline adsorbs and filters dust in the cleaning box through the filter screen through the dust suction machine, so that the surface quality of the steel balls is improved, and the risks of oxidation and corrosion are reduced; therefore, the performance and the service life of the whole workpiece are improved.

The utility model provides steel ball surface grinding and polishing equipment, and belongs to the technical field of steel ball machining. The steel ball surface grinding and polishing equipment comprises a support, a rotating piece is arranged at the upper end of the support, a grinding piece is eccentrically arranged on the rotating piece, a supporting table is arranged at the lower end of the support, the supporting table comprises three rotating rollers arranged in a triangular shape, each rotating roller rotates independently, and balls are placed on the rotating rollers. The grinding device has the following effects that the rotating piece drives the eccentric grinding piece to rotate around the ball for grinding, the grinding range is larger and more uniform, the supporting table composed of the three rotating rollers is used for driving the ball to rotate in any direction, and therefore dependence on manpower during grinding is avoided, and automation is improved.

A ceramic ball material according to an embodiment includes a spherical portion; and a band-shaped portion formed over a circumference of a surface of the spherical portion. In the ceramic ball material, the ceramic ball material has a ratio Rab / Rap of 0.70 or more and 1.03 or less, where Rab denotes an arithmetic average roughness on an outer peripheral surface of the band-shaped portion; and Rap denotes an arithmetic average roughness on an outer peripheral surface of the spherical portion.

The invention is suitable for the technical field of valve machining, and provides machining control equipment for spherical surface treatment of a ball valve. The machine tool frame comprises a machine tool table. A C-shaped plate is fixed on the surface of the machine tool table; a sliding part is slidably arranged on the side surface of the C-shaped plate; a rotating part is clamped at the end part of the sliding part; the extension rod is sequentially sleeved with a plurality of ball valve bodies and partition parts in a staggered mode. A grinding part is arranged between the two sliding rods in a sliding manner; a grinding cavity and a rotating cavity which are respectively matched with the ball valve body and the separation part are sequentially formed in the side surface of the fixed plate in a staggered manner; according to the device, the multiple sets of partition parts and the ball valve bodies are sequentially arranged on the extension rod in a staggered and sleeving mode, the corresponding fastening nuts are tightened, so that all the sets of ball valve bodies are clamped and fixed between the adjacent partition parts, and through cooperation of all the parts, the rotating part is controlled to rotate to drive all the sets of clamped and fixed ball valve bodies to rotate synchronously; synchronous grinding of multiple sets of ball valve bodies is achieved, and the spherical surface grinding efficiency of the ball valve bodies is improved.

The invention belongs to the technical field of machining, and discloses a swash plate assembly spherical surface machining method which comprises the following steps that swash plate assemblies are pressed, and splicing gaps between the swash plate assemblies are subjected to wax sealing; grinding the swash plate spherical surface through a grinding wheel; the spherical surface of the swash plate is ground through a spherical grinding machine, grinding paste is used during grinding, and the grinding paste is cleaned after grinding; polishing the spherical surface of the swash plate by using grinding paste and a wool wheel, and then cleaning the grinding paste on the spherical surface of the swash plate; the polishing cloth is pasted on a spherical surface grinder, the polishing paste is evenly smeared on the polishing cloth, and the spherical surface of the swash plate is polished to be a mirror surface through the spherical surface grinder; and paraffin in the splicing gap of the swash plate assembly is removed. Through wax sealing and wax removal treatment, the problem that foreign matter enters gaps of the swash plate assembly in the machining process can be avoided, and the machining quality of the swash plate spherical surface is improved.

The utility model relates to an automatic pearl grinding tool and full-automatic pearl grinding equipment. The automatic pearl grinding tool comprises a grinding unit, a constant pressure unit, a grinding driving unit and a longitudinal driving unit. The device has the advantages that the longitudinal driving unit is utilized to realize automatic up-down displacement of the grinding unit, so that the subsequent pearl collecting procedure is facilitated; and constant-pressure grinding of the pearls is achieved through the constant-pressure unit, and the situation that the pearls are crushed due to too large pressure is avoided.

The invention discloses a micro hemisphere batch polishing device and method.The device comprises polishing equipment, a connecting assembly and a mounting assembly, the mounting assembly comprises a mounting disc and a plurality of jigs, the mounting disc is arranged on an asphalt disc, and a plurality of mounting through holes corresponding to the jigs one to one are formed in the mounting disc; the jigs are arranged in the corresponding installation through holes and detachably connected with the installation disc, containing holes are formed in the bottom faces of the jigs, the lower portions of the micro hemispheres extend out of the containing holes and abut against the asphalt disc, the connecting assembly comprises a mandrel, a bearing sleeve and a ball bearing, the bearing sleeve is fixed to the center of the upper surface of the installation disc, and the ball bearing is fixed in the bearing sleeve. The upper end of the mandrel is detachably connected with the polishing equipment, the lower end of the mandrel is provided with a ball head, the ball head is suspended in a center hole of the ball bearing and is in small clearance fit with the ball bearing, and when the polishing equipment is started, the mandrel is driven to swing, and then the mounting disc is driven to rotate relative to the asphalt disc so that the lip edges of the multiple micro hemispheres can be ground with the asphalt disc. By means of the micro-hemisphere polishing device, efficient and high-quality batch polishing of micro-hemispheres can be achieved.

The utility model relates to an automatic pearl receiving tool and full-automatic pearl grinding equipment. The automatic pearl receiving tool comprises a receiving unit, a blocking unit, a transverse movement unit and a longitudinal movement unit. The pearl feeding device has the advantages that pearls of a preset number and a preset specification can be received through the material receiving unit, automatic batch feeding can be completed, and compared with manual feeding, the steps are few, manpower consumption is low, and the feeding efficiency is high; full-automatic work of the automatic pearl receiving tool can be completed through the transverse movement unit and the longitudinal movement unit, manual operation is not needed, labor cost is reduced, and efficiency is improved; potential safety hazards do not exist, and workers do not need to worry that fingers are crushed.

The utility model relates to the technical field of spherical part machining, in particular to a clamp for spherical part machining, which comprises two groups of deformation clamping mechanisms symmetrically arranged on machining equipment, each deformation clamping mechanism comprises a fixed cover fixed on the machining equipment and a plurality of groups of clamping rings connected with the end wall of the fixed cover through elastic parts, the diameters of the multiple sets of clamping rings are different, the circle centers of the multiple sets of clamping rings are located on the same axis, a jacking assembly is arranged in the fixing cover and used for intermittently jacking one set of clamping rings out, so that the set of clamping rings are pushed out of a plane formed by the other sets of clamping rings, and the clamping rings are clamped according to the size diameter and the weight of a to-be-machined spherical part. The clamping pieces of different sizes are selected as the clamping pieces, the contact areas of the different clamping rings and the spherical piece are different, stable clamping is effectively provided, and the spherical piece is prevented from being damaged.

The utility model discloses a gate valve element grinding device which comprises a grinding table, a fixing frame, a grinding piece and a rotating mechanism which is installed on the grinding table and used for driving a valve element to rotate. The fixing mechanism is installed on the fixing frame and used for fixing the valve element and the rotating mechanism; the valve element grinding device is reasonable in structure, the spherical valve element can be conveniently fixed, grinding work can be conveniently conducted, meanwhile, the position of the grinding piece can be automatically adjusted, manual adjustment is not needed, and the use requirement can be better met.

The present invention discloses a grinding processing equipment for the end of a shaft workpiece, and relates to the field of grinding processing technology; specifically, it comprises a base, a clamping and fixing part for clamping shaft parts is arranged on one side of the top of the base, a grinding part for grinding spherical surfaces is arranged on the other side of the top of the base, the grinding part comprises a bracket rotatably connected to the base through a rotating shaft, and a grinding assembly arranged on the top side wall of the bracket; the grinding assembly comprises a grinding wheel and electromagnets 1 and 2 that cooperate with each other, a wheel frame is fixed on the outer wall of the grinding wheel, and the wheel frame is slidably connected to the bracket through a sliding rod. The present invention clamps parts by setting a circular array of chucks to ensure that parts of different diameters can be clamped, and the axis positions of parts of different diameters are the same after clamping, thereby facilitating subsequent grinding and positioning, and improving grinding accuracy.

In a material for a ceramic ball according to an embodiment, a sphericity is 2% or less, and an arithmetic mean roughness Ra is 0.2 μm or more and 2 μm or less. In the material for the ceramic ball, a total height of profile Rt is preferably 4 μm or more and 20 μm or less. In the material for the ceramic ball, when a surface roughness Ra in a circumferential direction of a belt-like portion mark is defined as Ra1, and a surface roughness Ra of a circumference in a direction perpendicular to the belt-like portion mark is defined as Ra2, Ra1 / Ra2 is preferably 0.2 or more and 2 or less.

The invention belongs to the technical field of graphite nodule processing, and discloses integrated graphite nodule processing equipment which comprises a fixing ring, top guide rails are fixedly installed at the top end of the fixing ring at equal angles, supporting legs are fixedly installed at the bottom end of the fixing ring at equal angles, and a movable plate is arranged in the middle of the inner side face of the fixing ring. And auxiliary clamping assemblies are fixedly mounted at the top end of the movable plate at equal angles. The graphite nodules can be automatically clamped and fixed by utilizing the gravity of the graphite nodules and simply placing the graphite nodules, only the graphite nodules need to be put down in the whole clamping and fixing process, meanwhile, the graphite nodules can continue to move downwards along with grinding of the graphite nodules, the clamping process of the graphite nodules and the graphite nodules is kept all the time, the whole process is automatically completed, and the work efficiency is improved. The problems that a traditional device needs to consume much time to complete clamping before grinding, and meanwhile a clamp needs to be adjusted in the grinding process are solved, operation steps are simplified, and then the overall machining efficiency is improved.

The utility model relates to the technical field of ball machining, and discloses a grinding device for a valve ball, which comprises a workbench, supporting legs are fixedly mounted at the bottom of the workbench, a U-shaped protective plate is fixedly mounted on the upper surface of the workbench, a sliding door is fixedly mounted on the U-shaped protective plate, a handle is fixedly mounted on the sliding door, and the handle is fixedly mounted on the workbench. A dust removal mechanism is arranged on the workbench and comprises a fan fixing rod, a dust removal fan is fixedly mounted at the bottom of the fan fixing rod, a dust collection hole is formed in the workbench, a dust collection pipeline is fixedly connected to the bottom of the dust collection hole, and a filter screen is fixedly mounted on the dust collection pipeline. The dust removal device has the advantages that the dust removal mechanism can be arranged, so that dust generated in the working process can be cleaned, and the effect of protecting the environment is achieved.

The invention relates to the field of machining, in particular to a grinding machine which comprises a circular ring seat, supporting leg frames are symmetrically arranged at the two ends of the circular ring seat, a spherical ring seat is arranged in the center of the circular ring seat, three grooves are evenly formed in the spherical ring seat in the circumferential direction, supporting arm rods are arranged in the three grooves in a sliding mode, and supporting blocks are perpendicularly fixed to the ends, close to the center of the spherical ring seat, of the three supporting arm rods. Three limiting frames are evenly arranged on the upper end face of the spherical ring seat in the circumferential direction, a threaded disc is arranged among the three limiting frames in a rotation limiting mode, the lower end face of the threaded disc is in threaded connection with the upper end faces of the three supporting arm rods, and a positioning screw is in threaded connection with one limiting frame and used for abutting against the threaded disc. A lifting frame slides on one supporting leg frame in a lifting limiting mode, a grinding disc is arranged on the lifting frame in a rotating mode, grinding paper with a sponge layer adheres to the lower end of the grinding disc, and an adjusting screw rod is arranged on the lifting frame in a rotating mode and is in threaded connection with the supporting leg frame. The spherical surface polishing device is convenient for polishing a spherical surface.

The utility model relates to novel full-automatic pearl grinding equipment. The novel full-automatic pearl grinding equipment comprises a feeding tool, a receiving tool and a grinding tool, the pearl screening device has the advantages that the screening unit and the receiving unit are matched, pearls of a preset number and preset specifications can be screened, automatic batch feeding can be completed, and compared with manual pearl screening, the pearl screening device is few in step, low in manpower consumption and high in feeding efficiency; the storage unit and the screening unit are isolated and exposed through the isolation unit, the pearl feeding procedure can be automatically completed, and the feeding efficiency is effectively improved; full-automatic work of the material receiving tool can be completed through the second transverse movement unit and the second longitudinal movement unit, manual operation is not needed, the labor cost is reduced, and the efficiency is improved; and the overturning unit is used for driving the material receiving unit to overturn, so that full-automatic operation of the pearl material receiving procedure is realized, and the pearl material receiving efficiency is greatly improved.

The invention discloses a grinding machine tool for machining an inner spherical surface, and relates to the technical field of spherical workpiece grinding. A grinding assembly, a driving assembly and a driving motor are mounted on the top surface of the base; the grinding assembly comprises a spindle rotationally installed on the base, the front end of the spindle is connected with a tool apron, the rear end of the spindle is connected with the driving end of the driving motor, the middle of the tool apron is hinged to the spindle, a tool bit is installed at the front end of the tool apron, and an adjusting connecting rod is hinged to the rear end of the tool apron. A sleeve capable of sliding in the axial direction of the main shaft is arranged on the main shaft, the free end of the adjusting connecting rod is hinged to the sleeve, and a driving assembly for driving the annular groove to slide in a reciprocating mode along the main shaft is arranged on the base. According to the method, shutdown calculation and calibration are not needed, and the auxiliary time is greatly shortened; meanwhile, manual operation is replaced by mechanical transmission, personal errors and multiple clamping deviations are avoided, the problem of connection dislocation of segmented grinding is solved, and the inner spherical surface contour continuity and micron-order machining precision are guaranteed.

The utility model relates to a pearl grinding mechanism and full-automatic pearl grinding equipment, the pearl grinding mechanism comprises a grinding unit, a first support unit and a distance monitoring unit, the distance monitoring unit is arranged at the side part of the first support unit and is located at the upper part of the grinding unit; the distance between the first support unit and the grinding unit is monitored to prevent the grinding unit from excessively extruding the pearls. The pearl grinding device has the advantages that the distance between the first support unit and the grinding unit is monitored through the distance monitoring unit, the first support unit is prevented from extruding the grinding unit, the grinding unit is further prevented from excessively extruding pearls, and pearl damage is avoided.

The utility model provides a spherical casting surface treatment device, and belongs to the technical field of casting surface treatment. The spherical casting surface treatment device comprises a supporting mechanism, a clamping mechanism and a direction adjusting mechanism, the supporting mechanism comprises a supporting base, the clamping mechanism comprises a clamping base, a lower connecting base is installed at the top of the clamping base, an upper connecting base is installed at the top of the lower connecting base, and three sets of sliding grooves are formed in the top of the upper connecting base at equal intervals; the center of the clamping base, the center of the lower connecting base and the center of the upper connecting base are each provided with a through hole, the direction adjusting mechanism comprises an electric telescopic rod, the electric telescopic rod is installed in the supporting base, a machine sleeve is installed at the top of the telescopic end of the electric telescopic rod, and a first motor is installed in the machine sleeve. According to the technical scheme, the angle of the spherical casting among the three sets of clamping jaws can be automatically adjusted, so that the surface of the spherical casting can be ground, the adjusting risk is reduced, and the grinding efficiency is improved.

The utility model discloses a bearing steel ball polishing and cleaning device which comprises two sets of supporting pieces used for supporting and fixing, the two sets of supporting pieces are the first supporting piece and the second supporting piece respectively, the first supporting piece and the second supporting piece are oppositely arranged, and a polishing and cleaning box is movably installed between the first supporting piece and the second supporting piece. A driving assembly is installed on the first supporting piece, and the output shaft end of the driving assembly is connected with the polishing and cleaning box. The utility model belongs to the technical field of bearing steel ball polishing, and particularly relates to a bearing steel ball polishing and cleaning device which is characterized in that a cleaning assembly is used for cleaning scraps left on the inner side wall of a polishing cavity, and when a folding air bag is compressed, the scraps on the inner wall of the polishing cavity are blown again; and a cleaning brush III in the cleaning cavity can be used for removing scraps of the polished steel balls.

The utility model relates to the field of grinding machines, in particular to a machining device suitable for turning and grinding a spherical structure of a tilting pad radial bearing of a large-size steam turbine. The milling machine comprises a main beam, an adapter, a milling head, a rotary table plate, a motor and a belt, the main beam is adjustably mounted on the rotary table plate, the milling head is rotatably mounted on the adapter, the adapter is slidably arranged at one end of the main beam, the motor is fixed at the other end of the main beam, and the belt is connected with the motor and the milling head; the rotary table plate and the main beam are respectively provided with at least one positioning hole, positioning pins are arranged corresponding to the positioning holes, and the positioning pins are linearly inserted into the positioning holes in the rotary table plate and the main beam in a penetrating mode. A thread feeding mechanism is installed on the main beam, and the output end of the thread feeding mechanism is connected with the adapter. The whole device is fixed to a workbench of a numerical control machine tool, and movement of the X axis, the Y axis and the Z axis can be achieved through the workbench; in alignment, sparks generated during friction between the grinding wheel and a workpiece are observed through naked eyes, and feeding of the grinding wheel is more convenient to control through the independently-arranged thread feeding mechanism.

The invention relates to a full-automatic vibration type pearl grinding system and method. The full-automatic vibration type pearl grinding system comprises a material distributing unit, a material receiving unit and a vibration unit. The pearl feeding device has the advantages that the vibrating unit is used for vibrating the material distributing unit and the material receiving unit, so that pearls move in the material distributing unit and the material receiving unit, the pearls cannot be gathered at the bottom of the material distributing unit, the pearls can be conveniently and rapidly discharged outwards, and the pearls cannot be gathered in a certain area of the material receiving unit; the pearls can be uniformly distributed on the material receiving unit; a preset number of pearls with preset specifications can be received through the receiving unit, automatic batch feeding can be completed, and compared with manual feeding, the steps are few, manpower consumption is low, and the feeding efficiency is high; full-automatic operation is achieved, only a worker needs to inject pearls into the material distributing unit, the manual operation steps are reduced, the labor cost is reduced, and the efficiency is improved; potential safety hazards do not exist, and workers do not need to worry that fingers are crushed.

The ball valve polishing machining device comprises a machine body, an expanding and clamping rotary table and a polishing machining structure, the polishing machining structure comprises an electric push rod, a supporting table and a lantern ring, when the electric push rod pushes a piston rod, liquid in a hydraulic hole channel drives an impeller to rotate through a one-way output liquid channel, and a reciprocating lead screw is driven to make a polishing wheel do centrifugal movement; a lead screw box of an annular array on the outer ring surface of a lantern ring is linked with a grinding wheel and matched with rotation of an expanding and clamping rotary table, the spherical surface of the ball valve can be efficiently ground in all directions, a contact type probe sensor is flush with the grinding surface of the grinding wheel, the detection spherical surface can be covered, and problem area machining can be assisted; the device solves the problem that a traditional device cannot synchronously adjust the grinding radius, the machining period is shortened, the operation complexity and the labor cost are reduced, and the grinding efficiency, the quality consistency and the surface machining precision are improved.