31124results about "Grinding work supports" patented technology

In a process for polishing the chamfered peripheral part of a wafer using a polishing cloth while supplying a polishing slurry in order to improve productivity of the process by reducing a polishing time, at least two steps of polishing processes are performed in sequence. The process comprises a first polishing process to polish a particular part, e.g. the part corresponding to the {110} plane of a peripheral part of the wafer and a second polishing process in which the whole part of a peripheral part of the wafer is polished for finishing by means of varying a hardness of the polishing clothes and / or a particle size of abrasives in the slurry such as the hardness of the polishing cloth in the second polishing process being softer than that of in the first polishing process and a particle size of abrasives in the slurry in the second polishing process being finer than that of in the first polishing process.

The invention provides an automobile gear end surface polishing device, and relates to the technical field of automobile gear polishing. The automobile gear end surface polishing device comprises a working table, standing columns are fixedly installed on both sides of the top of the working table, and motor mounting blocks are fixedly installed on both sides of the inner wall of each standing column. According to the automobile gear end surface polishing device, through arrangement of telescopic motors, threaded rods, telescopic blocks, sliding rods, a strip-shaped sliding groove and a cross plate, a polishing device body on the bottom of the cross plate can vertically move between the two standing columns under driving of the telescopic motors; through arrangement of the cross plate, the sliding groove and supports, the polishing device body on the bottom of the cross plate can transversely move on the bottom of the cross plate; through arrangement of a polishing table, a rotating rod and a clamping base, a gear to be polished which is fixed to the top of the clamping base in a clamped mode can conduct circular motion on the bottom of a polishing motor under driving of the rotating rod. In sum, by means of the automobile gear end surface polishing device, the effect that adjustment is convenient is achieved, it is convenient for people to polish the end surface of the gear from different angles, and the quality of the gear after polished is better.

The invention discloses a device for simultaneously grinding the inner walls and the outer walls of steel pipes. The device comprises a workbench, a support, a collecting tank, a clamping mechanism, an outer grinding mechanism and an inner grinding mechanism; the support is arranged at the upper end of the workbench, and the clamping mechanism is arranged at the left end of the inner side of the support and comprises a clamping plate, a rotating motor, an annular gear, a gear, electric telescopic rods, supporting plates, rubber pads and springs; the outer grinding mechanism is installed at thelower end of a moving block; and the inner grinding mechanism is arranged under the outer grinding mechanism and comprises an inner grinding wheel, a threaded rod B, a fixing sleeve, a threaded sleeve, a second sliding groove, an electric hydraulic cylinder, a drive gear, a driven gear A, a driven gear B, a rectangular block and a connecting rod. The device is novel in design, simple in structure, capable of simultaneously grinding the inner walls and the outer walls of steel pipes with different thicknesses, high in grinding efficiency, wide in application range, capable of effectively preventing impurities such as scrap iron from polluting the environment, high in practicality and worthy of popularization.

A method and system for the manufacture of ophthalmic lenses comprising a computer (102) and a CNC machining platform (104) in operative connection with the computer. The CNC machining platform includes a mounting stage (110), a block (106) in releasable connection with the mounting stage, and a machining tool (112). When an unfinished lens blank (108) is properly mounted on the block, the computer is operative to direct the CNC machining platform to perform both back surface generation and patternless edging of the lens blank in one machining cycle. The computer is further operative to direct the CNC machining platform to machine a lap tool for each lens and machine a block for receiving each lens. The block is machined by the platform to include scribe lines for facilitating proper alignment of lens blank.

The invention relates to a complex curved face grinding and polishing system and method. The system comprises a three-degree-of-freedom manipulator, a visual detection device, a vibrating sensor and a three-degree-of-freedom tool platform. An installation clamp is arranged at the tail end of the manipulator and can install an oilstone, a polishing wheel and a grinding wheel. The visual detection device comprises a laser generating device and a binocular camera, is installed on the manipulator, and detects the outline and roughness of a workpiece. During working, the workpiece is installed on the three-degree-of-freedom tool platform. The visual detection device guides the manipulator to scan the outline of the workpiece, a three-dimensional outline data model is generated, and the roughness is analyzed. Polishing or grinding setting can be conducted on a work station. During grinding, setting can be conducted in three modes that a referential three-dimensional data model is compared with an actually measured workpiece three-dimensional data model, modification is conducted on the actually measured three-dimensional data model with a drawing tool, and grinding data are directly set on the actually measured three-dimensional data model.

The invention discloses an automatic follow centering and clamping device for a numerical control grinder. A middle clamping rod (5) is sleeved in a sliding way on a supporting body (12) which is provided with a driving mechanism which drives the middling clamping rod (5) to reciprocatingly move axially. An upper lever clamping arm (4) and a lower lever clamping arm (15) are hinged on the supporting body (12) with the middle clamping rod (5) axis of symmetry. The clamping ends of the upper lever clamping arm (4) and the lower lever clamping arm (15) are corresponding to the clamping end of the middling clamping rod (5) which is provided with a symmetric cuniform-shaped block (9) corresponding to opening ends of the upper lever clamping arm (4) and the lower lever clamping arm (15). The supporting body (12) is provided with an elastic device which keeps the clamping ends of the upper lever clamping arm (4) and the lower lever clamping arm (15) open. The invention is an automatic follow centering and clamping device applying automatic follow and moving, automatic centering and automatic compensating to a numerical control grinder.

The object of the present invention is to provide a double side polisher capable of maintaining thickness control accuracy over a long period of time without being affected by a gradual change in thickness of a polishing pad, and a thickness control method. The first polishing operation is finished based on the polishing duration time, and the second and subsequent polishing operations are finished based on the measured distance values of a distance sensor, and after each polishing operation including the first polishing, the measured value of the distance sensor is calibrated based on the measured value and target value of finishing thickness of the work piece. Since the calibration is performed for each polishing operation, it is possible to maintain thickness control accuracy over a long period of time.

The invention provides a multi-head polisher machine. The multi-head polisher machine comprises a container, a rotating plate, a rotating mechanism, a lifting mechanism and a plurality of loading sticks. An opening is formed in the upper end of the container. The rotating plate is horizontally arranged over the container. The rotating mechanism comprises a first motor, a chain, a main chain wheel, a main shaft and a plurality of auxiliary chain wheels. The main shaft is fixed to the middle of the rotating plate. An output shaft of the first motor and the main shaft are coaxially fixed. The main shaft is sleeved with the main chain wheel. The loading sticks are sleeved with the auxiliary chain wheels respectively. The main chain wheel and the auxiliary chain wheels are linked through the chain. According to the multi-head polisher machine, parts are assembled on the loading sticks, the loading sticks are driven by the rotating plate to revolve, the loading sticks unceasingly rotate, and therefore the parts can rub abrasive materials in the container, and the mirror surface effect can be generated within a certain period of time when the abrasive materials make contact with the parts at a high speed. The surface flatness can not be damaged as long as the parts do not collide.

The invention discloses an automatic robot device for grinding air feeding and discharging edges of a blade. The automatic robot device comprises a base station, a six-freedom-degree robot, a grinding device, a position changing machine, a three-dimensional laser measurement device and a system control host. The six-freedom-degree robot is arranged on the base station. The grinding device is used for grinding the air feeding and discharging edges of the blade. The position changing machine is arranged on the base station. The three-dimensional laser measurement device is arranged on the position changing machine and comprises a triaxial movement platform and a three-dimensional laser measurement device body. The three-dimensional laser measurement device body comprises two three-dimensional laser outline scanners. The system control host is connected with the six-freedom-degree robot and the three-dimensional laser measurement device. The system control host is used for planning the machining path of the grinding device and a moving path of the three-dimensional laser measurement device and sending the paths and commands to the six-freedom-degree robot to be executed. The automatic robot device integrates self-adaptive grinding and measurement functions, and can guarantee the machining precision of the outlines of the air feeding and discharging edges of the blade.

The invention discloses an automatic grinding machine for industrial machinery and a grinding method. The automatic grinding machine comprises a base box body, wherein left and right sides of the topof the base box body are symmetrically equipped with stand columns; a top plate is arranged on the tops of the two groups of the stand columns; the outer wall of a bearing rod is movably equipped witha slide assembly; the bottom of the slide assembly is sequentially equipped with a grinding motor and a rotary rod from left to right; the bottom of the rotary rod is equipped with a universal shaftcoupler; the top of the base box body is equipped with a fixed clamp; and the right side of the top of the base bottom box is spliced with a water conveying hose I. The grinding machine for industrialmachinery is high in flexibility and is good in stability; a hydraulic cylinder drives the bearing rod to lift through a pushing rod, so that a grinding disc in grinding can lift; and an electric telescopic pole extends and shortens to drive the slide assembly to move left and right, so that the grinding disc in grinding can move left and right, and therefore, the automatic grinding machine has relatively high flexibility, and improves grinding working efficiency.

An apparatus for applying different amounts of pressure to different locations of a backside of a semiconductor device structure during polishing thereof. The apparatus is configured to be associated with a wafer carrier of a polishing apparatus and includes pressurization structures configured to be biased against the backside of the semiconductor device structure during polishing thereof. The pressurization structures are independently movable with respect to one another. The amount of force or pressure applied by each pressurization structure to the backside of the semiconductor device structure is controlled by at least one corresponding actuator. The actuator may magnetically facilitate movement of the corresponding pressurization structure toward or away from the backside of the semiconductor device structure. The actuator may alternatively comprise a positive or negative pressure source. Systems including the pressure application apparatus, as well as differential pressure application methods and polishing methods are also disclosed.

The invention belongs to the technical field of cutting equipment, and specifically discloses a pipe cutting and grinding device. The pipe cutting and grinding device comprises a cutting mechanism anda grinding mechanism which are connected to the same rotating shaft, wherein a transmission gear and two fixed pulleys are arranged on the rotating shaft; a rack which is fixed to a machine frame isengaged with the transmission gear; the grinding mechanism comprises a rotating barrel which is fixed to the rotating shaft, and a grinding plate is arranged on the rotating barrel; a square shaft isin sliding connection with the interior of the rotating barrel, and a threaded rod which is in thread connection with the rotating barrel is rotatably connected to the square shaft; and the threaded rod is in sliding connection with a sliding plate, and the sliding plate is in sliding connection with the machine frame. The pipe cutting and grinding device further comprises a conveying roller, a first clamping mechanism and a second clamping mechanism; the first clamping mechanism comprises a clamping block and a fixing block; a sliding rope is connected between the clamping block and the corresponding fixed pulley; the second clamping mechanism is in sliding connection with a working platform; a baffle plate is arranged at the left end of the working platform; and magnetic parts which areattracted to and repelled by each other are arranged between the baffle plate and the second clamping mechanism. According to the scheme, the pipe cutting and grinding device has the advantages that anotch of a steel pipe can be ground while the steel pipe is cut, so that the working efficiency is improved.