1771results about "Abrasive surface conditioning devices" patented technology

The invention belongs to the field of semiconductor materials, and particularly relates to a method for improving film thickness uniformity of a lithium tantalate bonding wafer, which comprises the following steps: thinning the lithium tantalate bonding wafer; and according to the film thickness distribution of the thinned lithium tantalate bonding wafer, pressurizing the polished bonding wafer in different areas step by step, fitting a polishing rate model according to the film thickness measured in real time, and adjusting a pressurizing formula for polishing. Whether the final shutdown thickness is reasonable or not is judged through a polishing rate model, compensation is obtained, and then secondary polishing is conducted. The consistency of supplied materials before polishing is guaranteed through thinning processing, and a foundation is provided for improving the thickness uniformity of a polishing film; the thickness uniformity of the film in the bonding sheet is ensured by pressurizing step by step in different regions; and the polishing rate model ensures the film thickness uniformity between the bonding sheets.

The invention discloses a honing wheel trimming cutter, and belongs to the technical field of gear cutters, the honing wheel trimming cutter comprises a cutter body and teeth, the cutter body comprises a cutter base and a PCD blade, the teeth comprise supporting teeth and grinding teeth, the supporting teeth are arranged on the cutter base, the grinding teeth are arranged on the PCD blade, a first area is formed between every two adjacent supporting teeth, and a second area is formed between every two adjacent grinding teeth. A second area is formed between every two adjacent grinding teeth, a first notch is formed in the side, close to the second area, of the first area, a second notch is formed in the side, close to the first area, of the second area, and the first notch and the second notch are spliced to form an inner cooling hole; the cutter base and the PCD blade are bonded through a hot adhesive layer, the hot adhesive layer comprises a plurality of adhesive units, and each adhesive unit is located between the adjacent inner cooling holes. The inner cooling holes are formed to discharge cooling liquid, so that the effects of cooling the trimming cutter and removing chippings can be achieved, and the inner cooling holes are spliced, so that curing of the hot adhesive layer can be promoted, and the bonding effect can be improved.

The utility model relates to the technical field of sealing ring machining, and discloses a metal sealing ring machining device with a clamping function, which comprises a working table, an air cylinder is fixedly arranged at the top of the working table and can drive a moving plate to move up and down, and the moving plate is fixedly arranged at the bottom of a piston rod at the output end of the air cylinder and can drive the moving plate to move up and down. According to the metal sealing ring machining device with the clamping function, when a sealing ring needs to be polished, an air cylinder is started to drive the motor to move downwards, the moving plate can drive a connecting rod to push an extrusion rod, the motor is driven to move upwards, and the extrusion rod is driven to move downwards; and meanwhile, a Z-shaped rod can push a rotating rod to enable a rotating disc to rotate, a cylindrical rod can drive a clamping block to move outwards, the inner ring of the sealing ring can be clamped, in this way, the sealing ring can be clamped more tightly, and the situation that polishing is poor, and secondary machining is needed is avoided.

A method comprises planarizing a substrate material with a functionalized chemical planarization pad. The functionalized chemical planarization pad includes a plurality of functional groups bonded to a material of the pad. The functional groups are configured to chemically react with the substrate material such that a portion of substrate material bonds to the functional groups. The pad is regenerated by applying a regeneration solution configured to break bonds between the functional groups and substrate material bonded to the functional groups to form removed material. The removed material is complexed in a dissolved complexing agent to form dissolved material in an effluent phase.

The invention belongs to the technical field of semiconductor device manufacturing and processing, and particularly relates to semiconductor device manufacturing processing equipment which comprises a base and a mechanical arm fixedly arranged at the top of the base, a dust removal mechanism is fixedly arranged at one end of the mechanical arm, and a wafer polishing mechanism is fixedly arranged at the bottom end of the dust removal mechanism. A pneumatic lifting mechanism is fixedly arranged at the top of the base, when a wafer clamped by the wafer clamping mechanism needs to be turned over, the clamping air bag is inflated through the air nozzle, the wafer is clamped through the clamping air bag, then a valve on the air outlet is closed, at the moment, the air pressure in the hollow stand column can be continuously increased, and the wafer can be turned over. The piston assembly in the pneumatic lifting mechanism is pushed by air pressure to be jacked upwards, the ejector rod can be synchronously driven to ascend when the piston assembly is jacked upwards, the wafer clamping mechanism can be jacked up synchronously through the ejector rod, a wafer needing to be polished can be turned over conveniently, and the back face of the wafer can be polished conveniently.

The invention relates to the field of laser detection, and discloses a shaving board processing-based surface flatness detection device which comprises a base, a plurality of conveying rods are arranged at the side part of the base, a wood board is placed on the conveying rods, a detection box is fixedly mounted at the top end of the base, and a laser detector is fixedly mounted in the center of the top of the detection box. The laser detector is used for detecting the flatness of the surface of the wood board, a detection auxiliary device is fixedly installed on the side portion of the base located on the lower portion of the detection box, and a grinding device is arranged on the detection auxiliary device; the two rollers in the detection auxiliary device clamp a wood board, the detection plate is leveled to make contact with the side face of the wood board, a half gear is driven to rotate when the wood board inclines, the half gear is meshed with teeth, the position of a lifting block is adjusted, and even if the edge of the wood board protrudes, the edge of the wood board does not protrude. The lifting block can still be adjusted to enable the board to be in a horizontal position, so that the detection precision of the laser detector is improved, and the influence of board inclination on the detection of the laser detector is reduced.

A polishing pad and a chemical mechanical polishing apparatus are provided. The polishing pad includes: a central portion, designed with a central recess; and a peripheral portion surrounding the central portion, and designed with at least one peripheral recess. The at least one peripheral recess is disposed along an annulus contour. A lower part of the peripheral recess is greater than an upper part of the peripheral recess in terms of diameter area, and is different from the upper part in shape.

The utility model discloses an internal washing structure of a grinding disc, which belongs to the technical field of grinding disc cleaning and comprises a water tank for storing water, a cleaning bin arranged on the water tank and used for preventing clean water from splashing out, and the grinding disc positioned in the cleaning bin, a supporting structure used for supporting the grinding disc is arranged on the inner wall of the cleaning bin. When the grinding disc cleaning device is used, a grinding disc is placed on the supporting rollers in the cleaning bin, then the electric pump and the motor are started, and water in the water tank can be pumped out under the action of the electric pump and sprayed on the two sides of the grinding disc through the two spray heads respectively, so that double-face cleaning of the grinding disc is achieved, and chippings and impurities in gaps of the grinding disc are washed away; and under the action of the motor, the grinding disc can rotate to change the cleaning position, and meanwhile, the spray heads on the two sides can move in a reciprocating mode and drive the connecting plate to clean the grinding disc, so that the grinding disc can be cleaned more comprehensively, and the cleaning effect on the grinding disc is improved.

The invention relates to the field of grinding, and provides an aluminum alloy die casting grinding method and equipment which comprises a base, two first mounting frames are fixedly connected to the top wall of the base, a second mounting frame is fixedly connected to the two first mounting frames, and a first electric push rod is fixedly connected to the second mounting frame; an electromagnet and two transmission pieces are fixedly connected to a movable part of the first electric push rod, a driving roller set is connected to the first electric push rod, two tooth grooves are formed in the inner wall of the first electric push rod, limiting tooth sets are fixedly connected to the inner walls of the tooth grooves, two supporting assemblies are connected to the base, and each supporting assembly comprises a supporting roller set, a linkage rod and an L-shaped plate; one end of the linkage rod is rotationally connected with the supporting roller set, the other end of the linkage rod is rotationally connected with the L-shaped plate, an internal grinding roller assembly is connected to the base, and an external grinding assembly is connected to one of the first mounting frames. According to the embodiment, only one first electric push rod is arranged for driving, and the effects of adjusting the distance between the two supporting roller sets and pressing a workpiece through the driving roller set can be achieved.

The invention relates to the technical field of ship rust removal, and discloses a ship rust removal device which comprises a supporting rod, a mounting shell fixedly mounted on the supporting rod and two bowl-shaped steel wire brushes arranged on one side of the mounting shell, a rotating rod is fixedly mounted between the two bowl-shaped steel wire brushes, and the rotating rod is fixedly connected with the mounting shell. The bowl-shaped steel wire brushes are installed at the two ends of the rotating rod correspondingly, the two bowl-shaped steel wire brushes can be switched at any time, the bowl-shaped steel wire brushes switched into the installation shell can be washed through the washing assembly, rust powder and paint chippings attached to the interiors of the bowl-shaped steel wire brushes can be removed, then the rust powder and the paint chippings flow away through the flow guide pipe, and the rust powder and the paint chippings are collected and treated subsequently; and the cleaned bowl-shaped steel wire brush is in a wet state, dust is more easily adhered to the outer surface of the bowl-shaped steel wire brush in the polishing process, raised dust can be reduced, and the situation that a large amount of rust dust is adhered to the polished position of the ship body, and the judgment of workers on the rust removal condition of the surface of the ship body is affected is reduced.

The invention relates to the technical field of rubber roller polishing, and particularly discloses an energy-saving reciprocating rubber roller polishing device for a textile auxiliary machine, clamping parts are fixedly connected to the two sides of the top of a workbench, a cooling part is fixedly connected to the middle of the top of the workbench, a transmission part is fixedly connected to the top of the workbench, and the transmission part is fixedly connected to the top of the workbench. And the inner side of the grinding part is in threaded connection with the output end of the transmission part, the grinding part comprises a base, the inner side of the base is in threaded connection with the output end of the transmission part, and a grinding shell is fixedly connected to the top of the base. According to the energy-saving reciprocating type rubber roller grinding device for the textile auxiliary machine, the connecting mechanism is arranged, chippings falling during grinding wheel cleaning can be sucked into the connecting shell through suction force generated by work of the connecting mechanism, the bottom plate on the inner side of the connecting shell is provided with an inclined face and is provided with a round hole, and the chippings can be ground into the grinding wheel under the combined action of gravity and the suction force; and the materials smoothly enter the baffle frame through the round holes for centralized collection.

The invention provides glass edge grinding equipment. The glass edge grinding equipment comprises a rolling supporting platform, a grinding device and a limiting device. The rolling support platform is used for rolling and supporting a glass plate, and the distance between a polished part and a human body standing position can be adjusted by adjusting deformation; the limiting device is used for supporting one side of the polished edge of the glass plate in a rolling manner; a grinding disc of the grinding device penetrates out of the position between the two supporting assemblies of the limiting device. A grinding groove is formed in the side wall of the grinding disc, is in a closed-loop shape around the axis of the grinding disc and is of a V-shaped groove structure; the limiting device can change the relative protruding range of the grinding disc by adjusting the position of the supporting assembly. The grinding device can vertically move through adjustment, so that the grinding disc is matched with the bearing plane of the rolling support platform; the limiting device vertically moves along with the grinding device; parameters can be automatically adjusted according to grinding requirements, use and operation are convenient, and the adjusting accuracy is high. And the size of the workbench can be adjusted according to requirements, a more suitable working station is provided, and operation is convenient.

The utility model discloses a high-precision cylindrical grinder for a lead frame. The high-precision cylindrical grinder comprises a lathe bed, and a power device, a grinding wheel assembly, a diamond grinding wheel repairing cutter, a cooling assembly, an air pump, a negative pressure pump, a dust removal box, a main shaft and a driven shaft which are arranged in the lathe bed. In the grinding wheel trimming process, compressed air generated by the air pump enters the air blowing cavity along the pipeline and the air pipe connector and then enters the blowing groove through the communicating groove, airflow is blown out after the flow speed is increased through the closing opening in the tail end of the blowing groove, and a complete annular air curtain is formed on the outer wall of a part located between the chuck and the ejector pin; high-speed moving sand particles generated during grinding wheel repairing can be effectively prevented from falling on the surface of a part, the product machining quality is improved, and then smooth production of a lead frame is guaranteed.

A determining tool for use in determining the shape of the tip end of a machining tool that machines a workpiece held on a table while the machining tool moves relatively to the table includes a bottom surface adapted to be held on the table and a flat slanting surface inclined to the bottom surface and oriented across a direction in which the machining tool moves relatively to the table, the flat slanting surface being adapted to be cut through by the tip end of the machining tool.

The invention discloses a grinding wheel with a self-adaptive wear compensation function, and belongs to the field of grinding wheels. A grinding wheel with a self-adaptive wear compensation function comprises a supporting plate, a grinding wheel assembly and a protective shell, the grinding wheel assembly and the protective shell are installed on the supporting plate, the grinding wheel assembly is located in the protective shell, the grinding wheel further comprises a moving mechanism fixedly connected to the position over the supporting plate, and a supporting mechanism used for driving is arranged above the moving mechanism; the detection mechanism is arranged over the supporting mechanism and used for detecting the surface of the grinding wheel assembly. A dressing mechanism; according to the method, the defect part can be accurately detected and marked in time, the problem that the defect position is not marked in time and is not easy to find quickly in the later period is solved, the service life of the grinding wheel is prolonged, and the grinding wheel can form a new grinding surface, so that the grinding capacity is recovered, and the grinding efficiency is improved. Therefore, the problem of poor polishing effect in the later polishing process is solved, and the device can further recover to the optimal state to work.

The invention relates to the technical field of semiconductor manufacturing, and provides wafer thinning equipment and a wafer thinning process. The wafer thinning equipment comprises a plurality of grinding discs, a functional assembly and a slicking assembly; two functional assemblies are correspondingly arranged on the grinding face of each grinding disc, and two grinding areas are formed between the two functional assemblies. The functional assembly is used for cleaning the grinding area and spraying grinding fluid; the slicking assembly penetrates through the grinding areas of the multiple grinding discs and is used for dispersing grinding fluid. The functional assembly is arranged corresponding to the grinding disc, the grinding fluid in the grinding area of the grinding disc can be cleaned, and the grinding fluid is sprayed again, so that wafer grinding particles can be cleaned, and the purity of the grinding fluid is ensured; and meanwhile, by arranging the slicking assembly, the grinding fluid can be uniformly dispersed before the grinding fluid is in contact with the wafer, so that local aggregation of the grinding fluid is avoided, the stress concentration problem is prevented, the wafer cannot be scratched, and the grinding precision is guaranteed.

The invention discloses grinding equipment and a grinding method for metal cutting milling cutter machining, and relates to the technical field of grinding machine tools. The grinding equipment for metal cutting milling cutter machining comprises a grinding machine base, a spindle box is fixedly connected to the top of the grinding machine base, a chuck is movably connected to the right side of the spindle box, and a movable seat is movably connected to the position, located on the right side of the spindle box, of the top of the grinding machine base. According to the grinding equipment and the grinding method for metal cutting milling cutter machining, an air supply motor drives a spiral plate to rotate, so that the spiral plate continuously feeds external air into a splash guard through an air supply pipe, and air flow is formed to be blown to a diamond grinding wheel; and cooling liquid on the surface of the diamond grinding wheel and loose abrasive particles and chippings on the surface can be blown to the right side to be away from the surface of the diamond grinding wheel, so that the to-be-ground surface of the diamond grinding wheel is kept clean, the abrasive particles and chippings are prevented from participating in grinding to influence the surface quality of the milling cutter, and the machining efficiency is improved.

The invention relates to the technical field of polishing machines, and discloses a chemical mechanical polishing machine based on a feeding structure, which comprises a polishing machine body consisting of a C-shaped machine base, a driving cylinder and a driving motor, an output shaft of the driving motor is fixedly connected with a transmission shaft rotationally penetrating through the C-shaped machine base and the annular baffle. The chemical mechanical polishing machine based on the feeding structure can effectively solve the problems that in the prior art, due to the fact that the polishing solution is mostly added in a middle single-point mode, the concentration of the polishing solution is not uniform at the edge of a silicon wafer or the center area of a grinding pad, local excessive polishing or insufficient polishing is caused, and the overall polishing quality is affected; and the silicon wafer is mostly fixed through a clamp or a vacuum adsorption pad, so that the exposure thickness is inconvenient to adjust when the silicon wafers with different thicknesses are polished, and the damage risk is increased due to excessive pressure on the silicon wafer in the polishing process.

The utility model belongs to the technical field of polishing machining, and particularly relates to horizontal polishing machining equipment for an edge grinding type box transformer substation shell, which comprises a working table, a polishing device is arranged at the top of the working table, and the polishing device comprises a feeding unit, a polishing unit, a dust removal unit and an impurity removal unit. According to the horizontal polishing machining equipment for the edge grinding type box transformer substation shell, the feeding unit is arranged, the edge grinding type box transformer substation shell to be polished is placed on the top of the containing table, a second telescopic piece is started to push clamping plates to abut against the front side and the rear side of the shell, the shell is clamped, and then a first telescopic piece is started to push a connecting block to drive the containing table to move rightwards; according to the shell polishing and feeding device, polishing and feeding of the shell are achieved, the shell is prevented from shaking during polishing by fixing the shell, the polishing quality is improved, and the problems that in the background technology, the shell is directly placed on a conveying belt in the using process, due to the lack of a fixing device, when a polishing roller makes contact with the shell, the shell shakes, and the polishing quality is affected are solved.

The invention relates to the technical field of grinding tool machining, and discloses a grinding wheel dressing device for a grinding machine, which comprises a U-shaped seat, a coating shell is rotatably connected between the two ends of the U-shaped seat, the top end of the coating shell is rotatably connected with a mounting shaft seat in a penetrating manner, a diamond pen is inserted into the top end of the mounting shaft seat, and an angle adjusting part is arranged between the coating shell and the U-shaped seat; the outer side of the mounting shaft seat is slidably connected with a rotation transmission part, and a rotation driving part is arranged under the rotation transmission part. The self-rotation transmission part and the self-rotation driving part are wrapped by the wrapping shell, so that chippings generated during grinding of the grinding wheel are prevented from entering the space between the self-rotation transmission part and the self-rotation driving part; and through the blocking effect of the right blocking cover and the left blocking cover, chippings are prevented from entering the gear set between the adjusting knob and the right supporting shaft, and the chippings are prevented from entering the position between the friction disc and the left supporting shaft, so that the inclination angle of the diamond pen can be adjusted, and the diamond pen can be driven to rotate stably.

The invention discloses a screen display glass edge grinding device which comprises a grinding seat and grinding wheels, a glass inlet is formed in the grinding seat, the grinding seat comprises a seat body, an air knife seat body and a water knife seat body which form a grinding cavity, and the grinding wheels are vertically inserted into the grinding cavity. The air knife seat body comprises an upper air knife and a lower air knife which blow the grinding wheel and are distributed in an arc shape around the circle center of the grinding wheel; the water jet cutter seat body comprises a water jet cutter and a waste collecting module. On one hand, the closed grinding section is formed between the upper and lower arc-shaped air knives and the grinding wheel, fluid is flushed out through the water jet cutter, waste generated by grinding is flushed out of the grinding section along with rotation of the grinding wheel, the probability that fine dust escapes outwards and is secondarily attached to the surface of glass is effectively reduced, and the collection rate of the waste is improved; and on the other hand, based on cooperation of the main collecting branch and the auxiliary collecting branch, waste rushed out of the second end is shunted and gently collected, the splashing and accumulation phenomena generated when the waste impacts the inner wall of the grinding cavity are effectively reduced, the cleaning frequency is remarkably reduced, and the grinding efficiency is improved.

The invention relates to the technical field of water pump mandrel grinding, and particularly discloses a water pump rotor mandrel outer circle grinding device which is characterized in that a clamping component is fixedly connected to the top of a workbench, a transmission component is fixedly connected to the side face of the workbench, and a cooling component is fixedly connected to the side, away from the transmission component, of the workbench; the grinding component is installed on the transmission component and comprises a fixing shell, the bottom of the fixing shell is connected with the output end of the transmission component, fixing frames are fixedly connected to the two sides of the fixing shell, and grinding wheels are rotationally connected to the inner sides of the fixing frames. According to the outer circle grinding machining device for the water pump rotor mandrel, the connecting mechanism is arranged, due to the fact that the side face of the grinding wheel is finished synchronously in the process that the grinding wheel grinds the mandrel, extra shutdown is not needed for grinding wheel finishing operation, time is saved, the overall machining efficiency is improved, the idle time of equipment is shortened, and production benefits are increased.

The invention relates to a method of pre-forming a grinding tool. In a method for preforming a grinding tool, a device, in particular a gear grinder (1), is provided for fine hard machining of a workpiece and for preforming a grinding tool, comprising: a workpiece spindle (2) for rotating the workpiece; a grinding spindle (3) which can be fed at least along a grinding spindle transverse feed axis X in order to rotate a grinding tool, in particular a grinding worm (4) or a grinding wheel; and a forming device (5) with a fixed first forming plate (6). A grinding tool blank, in particular a grinding worm blank, is arranged on a grinding spindle (3) of the device. The apparatus is placed in a shaped configuration. The grinding spindle (3) is fed until the grinding tool blank is operatively connected to the first forming plate (6). And finally, pre-forming the grinding tool blank.

To provide a grinding tool capable of improving grinding accuracy and a manufacturing method thereof. [Solution] The grinding tool 1 comprises a plurality of diamond abrasive grains 2 made of synthetic diamond, and a substrate 3 to which the plurality of diamond abrasive grains 2 are fixed. The plurality of diamond abrasive grains 2 are fixed in a single layer to the surface 31 of the substrate 3. The surface of each of the plurality of diamond abrasive grains 2 has a plurality of flat surfaces 21 which are crystal faces, and corners 22 connecting the flat surfaces 21. When the grinding tool 1 is used to grind an object to be ground, the portion of the diamond abrasive grains 2 that comes into contact with the object to be ground is defined as the contact portion 11. The grinding tool 1 has more diamond abrasive grains 2 whose contact portions 11 are corners 22 than diamond abrasive grains 2 whose contact portions 11 are flat surfaces 21.

The invention discloses a flexible dressing method for a grinding wheel with a complex profile, which comprises the following steps: S1, acquiring a grinding wheel profile, and acquiring a continuous fine dressing curve by adopting an equidistant line method according to the grinding wheel profile; s2, extracting entity segment data information of the continuous fine finishing curve to obtain fine finishing track information; s3, presetting a theoretical single cutting depth, discretizing the continuous fine finishing curve to obtain fine finishing discrete points, and creating a fine finishing discrete track according to the fine finishing discrete points; s4, constructing a profiling allowance distribution model; comprising the steps that a rough finishing boundary and a tool retracting position boundary are established based on fine finishing discrete points according to preset profiling allowance, and a rough finishing track is established according to the rough finishing boundary and the tool retracting position boundary; and S5, the grinding wheel is trimmed according to the rough trimming discrete track and the fine trimming discrete track in sequence. According to the method, the continuous fine dressing curve is automatically dispersed, and the dressing path under the condition of profiling allowance is designed, so that the grinding wheel dressing flexibility degree and the dressing accuracy and universality are improved.

The present invention provides a method for shaping a grinding wheel (16), which is used in a wafer (W) chamfering device for rough machining, performs shaping at a high speed by using a rough grinding dresser (10-1) so that the grinding wheel (16) becomes a rough-grinding target shape, leaving a machining allowance for shaping, and when the grinding wheel (16) reaches a permissible range of the rough-grinding target shape, performs shaping at a high speed by using the rough grinding dresser (10-1). The present invention relates to a method for shaping and dressing a grinding wheel having a complex groove shape, in which the grinding wheel is shaped and dressed into a target shape for fine grinding using a fine grinding dresser (10-2) having a larger grinding wheel particle size number than a coarse grinding dresser (10-1) as a fine grinding, whereby not only the molding of the grinding wheel having a complex groove shape can be performed with high precision and high quality, but also the time required for shaping and dressing a difficult-to-machine material can be shortened.

The invention relates to the technical field of semiconductor manufacturing, in particular to a photo-assisted catalytic diamond chemical mechanical polishing device, which solves the problems of low photocatalytic efficiency and low processing efficiency in the prior art, and comprises a bracket, a rotating platform and a working turntable for loading diamond wafers are arranged on the bracket, and an annular baffle plate is arranged on the outer side of the rotating platform. The rotating platform and the annular baffle are matched to form a containing groove, an annular polishing pad and a middle ultraviolet light source are arranged on the rotating platform, the middle ultraviolet light source is located in the center of the annular polishing pad, a side edge ultraviolet light source is arranged on the inner side of the annular baffle, and the annular polishing pad and the middle ultraviolet light source both correspond to the working rotary table in position; the containing groove is filled with polishing liquid, and the annular polishing pad, the side edge ultraviolet light sources and the middle ultraviolet light source are all immersed in the polishing liquid. The device has the beneficial effects that the design that the middle ultraviolet light source and the side ultraviolet light sources cooperatively irradiate is adopted, and the promoting effect of photocatalysis on the chemical reaction on the surface of the diamond is enhanced.

The invention discloses a steel structure butt welding adjusting device which comprises a supporting plate and supporting rods fixed to the four corners of the bottom of the supporting plate. A grinding part is arranged in the butt joint mechanism, in the butt joint process of the two steel structure bodies, the grinding part can make contact with the steel structure bodies along with continuous movement of a driving part, the grinding part comprises a coarse grinding plate, a fine grinding plate and a polishing plate, in the grinding process, a sliding plate slides on the top of a supporting plate along with a mounting plate driven by the driving part to move, and the grinding plate is in contact with the grinding part. The rough grinding plate firstly makes contact with the rotating steel structure main body and conducts comprehensive rough grinding on the end face of the steel structure main body through rotation of the steel structure main body, and due to the fact that a second gear at the bottom of a lead screw is meshed with a second rack at the bottom of a mounting shell, the lead screw can rotate, and therefore when a grinding piece moves to a certain degree, the grinding piece can rotate. And the rough grinding plate, the fine grinding plate and the polishing plate can sequentially treat the steel structure body and then move downwards into the second mounting frame.

The invention relates to the technical field of hardware product polishing, and provides a grinding wheel-free polishing device for hardware product polishing, which comprises a shell, the interior of the shell is connected with an abrasive belt for hardware product polishing through a tightening wheel set, and the tightening wheel set is driven by a motor to drive the abrasive belt to perform high-speed displacement; the bottom frame is fixedly connected to the bottom side of the shell, sealing shells are fixedly connected to the left end and the right end of the top side of the bottom frame, rotating discs are rotationally connected to the sides, close to the shell, of the sealing shells, and the rotating discs on the two sides are in mirror symmetry. Metal scraps on the surface of the abrasive belt can be cleaned through the brush, the brush completes telescopic movement under a spring reset mechanism, the scraps attached to the brush are effectively scraped away, the problems that the abrasive belt slips and workpieces are scratched due to scrap accumulation are solved, the brush attached with too many metal scraps is prevented from scratching the abrasive belt, and the abrasive belt is prevented from being scratched by the brush. And the effective grinding surface of the abrasive belt is continuously kept in the optimal working state.

The invention discloses a sampling needle outer wall self-adaptive polishing method and system, a product and a medium, and relates to the field of edge calculation. The method comprises the following steps: acquiring force and vibration signals to calculate an energy dissipation index; judging a cutting edge area, a sound window area or a transition area according to the index gradient; in the cutting edge area, a force signal is stabilized by controlling the feeding speed, and the rotating speed of a main shaft is adjusted, so that the kurtosis value tends to be minimum; in the sound window area, the feeding speed is controlled to stabilize the kurtosis target value; and in the transition area, the feeding rotation speed is synchronously adjusted according to the relative position, so that the force and the kurtosis track the dynamically changing target. By implementing the technical scheme provided by the invention, the polishing precision of the sampling needle is improved.