254 results about "Cnc grinding" patented technology

The present invention discloses optical element processing technology, and is especially processing method of aspherical optical element of optical glass and silicon monocrystal. The present invention features that optical glass and silicon monocrystal is processed in computerized numerically controlled grinder and computerized numerically controlled polishing machine through a new technological process including the steps of fine grinding of aspherical, polishing of aspherical, trim polishing of aspherical, profile detection, etc. The present invention is superior to traditional method, and has low production cost, stable quality and high efficiency.

The invention discloses a diamond grinding wheel for cutting a silicon crystal circle and a preparation method thereof. The method comprises the following steps: (1) preprocessing an aluminum alloy basal body; (2) configuring electroforming liquid: configuring the electroforming liquid according to the weight ratio of (38-43):(15-20):(43-57):(50-180):(4-8) of nickel sulphate, cobalt sulphate, deionized water, a diamond grinding material and a suspending agent; fully stirring evenly and obtaining the electroforming liquid; (3) carrying out insulation processing on the aluminum alloy basal body obtained in the step (1), putting the aluminum alloy basal body into the electroforming liquid, electroforming in an ultrasonic field, evenly precipitating the diamond grinding material in the electroforming liquid and metal on the basal body together and obtaining a grinding wheel blank body with a compound electroforming layer; and (4) taking out the grinding wheel blank body completing electroforming, and carrying out accurate processing on the grinding wheel blank body on a numerical control grinder and a numerical control lathe respectively according to the accuracy requirements of the required basal body and the required cutting edge. The diamond grinding wheel obtained by the invention meets the ultrathin and superfine technical conditions and also has favorable strength and rigidity.

The invention discloses a vitrified bonded cubic boron nitride grinding wheel for camshaft grinding, which consists of a substrate, a bonding layer and a grinding wheel block, the grinding wheel block is a cubic boron nitride grinding wheel block, cubic borax nitride The raw material components and weight percentage content of the wheel block are: 45-75% cubic boron nitride abrasive, 5-20% corundum, 20-35% vitrified bond; the raw material component and weight percentage content of the vitrified bond are : 50-60% SiO2, 20-30% B2O3, 2-5% Al2O3, 4-15% Na2O, 4-10% K2O. The invention provides a high-efficiency grinding tool with high hardness, high processing precision, long service life, no pollution to the environment, and can be matched with a numerical control grinding machine. Sharp, simple preparation process.

The invention discloses a spherical surface machining method belonging to the technical field of machine part machining. The method comprises the following steps of sequentially carrying out rough turning, finish turning, grinding and polishing on a spherical surface of a workpiece to be machined by using a numerical control machine tool, wherein the grinding step is implemented as follows: the finish-turned spherical surface of the workpiece to be machined is machined by using an ultrasonic metal surface machining device which is arranged on the numerical control machine tool. According to the spherical surface machining method, the finished-turned spherical surface of the workpiece to be machined is machined by using the ultrasonic metal surface machining device which replaces a numerical control grinder in the prior art, and therefore, the precision and the smooth finish of the spherical surface of the workpiece to be machined are ensured, and meanwhile, the machining process is simplified, the used equipment is reduced, the machining efficiency is improved, and the machining cost is lowered.

The invention discloses a large-cone-angle thrust tapered roller bearing outer ring large-angle machining numerical control grinding machine, and relates to the technical field of bearing machining. The grinding machine comprises a grinding machine body, a limiting mechanism, a grinding mechanism and a cleaning mechanism, wherein the limiting mechanism comprises a rotating assembly and a limitingassembly, the grinding mechanism comprises a moving assembly, a lifting assembly, a first adjusting assembly, a second adjusting assembly and a grinder, the moving assembly is fixedly arranged on oneside of the grinding machine body, the lifting assembly is fixedly arranged on the moving assembly, the first adjusting assembly is fixedly arranged on the lifting assembly, the second adjusting assembly is fixedly arranged on the first adjusting assembly, the grinder is fixedly arranged on the second adjusting assembly, and the cleaning mechanism comprises a pushing assembly and a cleaning assembly. According to the grinding machine, full-automatic grinding of a tapered roller bearing outer ring and cleaning operation of chippings in grinding process are completed through cooperative work ofall assemblies, manual operation is not needed, and the working efficiency is improved.

The invention relates to an eccentricity adjusting method and device for vertical numerically controlled grinder to process eccentric orifice. When the vertical numerically controlled grinder processes an eccentric orifice, the invention uses numerical servo control to realize method of precisely adjusting eccentricity of eccentric orifices of various specifications. The method comprises steps of adding a servo assistant shaft on the vertical numerically controlled grinder, driving the shaft through numerical servo to drag a worktable so as to making center of the eccentric orifice and rotatory center of a rotatory pedestal overlapped, thus realizing numerical servo control of eccentricity adjustment. The method makes adjustment precision of the eccentricity not dependent on precision of a clamp any more, makes adjustment range not limited to structure of the clamp and is especially applied to large-eccentricity workpiece. The invention simplifies process of clamping the workpiece, decreases human intervention degree and work intensity, can finish grinding an outer circle and a eccentric orifice during process of one-time clamping, improves processing efficiency and guarantees stability of processing precision.

The invention discloses a vertical numerical control spring grinding machine which comprises a rack, a grinding table, grinding wheel rotating mechanisms and a grinding wheel elevating mechanism, wherein die holes for placing springs are annually arrayed in the grinding table; a grinding wheel is arranged at the top end of each grinding wheel rotating mechanism and is drawn by the grinding wheel elevating mechanism to vertically lift. The vertical numerical control spring grinding machine is characterized in that the number of the grinding wheels used by the device is not less than four and the grinding wheels are different in granularity; a plurality of groups of upper and lower grinding wheels are arranged above and below the die holes which are annularly arranged in the grinding table in pairs; the granularities of the two grinding wheels which vertically correspond to each other in each group are identical but the granularities of the grinding wheels in each group are different from the granularities of the grinding wheels in other groups; from the view of the rotating direction of the grinding table, the granularities of the grinding wheels in one group, which are contacted with the springs firstly, are coarser, the granularities of the grinding wheels in a sequent group are slightly finer and the granularities of the sequent grinding wheels are finer. From the view of the vertical heights of the upper grinding wheels, the positions of the grinding wheels with the coarse granularities are highest, the positions of the grinding wheels with the fine granularities are slightly lower and the positions of the grinding wheels with the finest granularities are lowest. The vertical numerical control spring grinding machine disclosed by the invention has the beneficial effects that multiple paths of thick and thin grindings are combined to one machine for finishing the machining at one time; in addition, the precision and the smoothness can be ensured and high quality and high yield are obtained.

The invention belongs to the technical field of hard alloy grinding machines, and particularly relates to a five-axis numerical control grinding machine. The five-axis numerical control grinding machine comprises an operation table. A longitudinal supporting plate is in sliding connection with the back side of the top of the operation table through a track mechanism. A second electric cylinder isfixedly connected to the top of the longitudinal supporting plate. An installing frame is fixedly connected to the bottom of an output rod of the second electric cylinder. A sliding groove is formed in the back face of the installing frame. The inner wall of the sliding groove is in sliding connection with the surface of the longitudinal supporting plate. A grinding mechanism is fixedly installedon the front face of the installing frame. By rotating a two-way screw, two reverse threads of the two-way screw can drive a first sliding block and a second sliding block to move synchronously in a face-to-face mode, and therefore the effect of adjusting the interval is achieved, and the requirement of grinding pieces of different lengths is met. The surface of a supporting roller makes contact with the surface of a grinding piece, supporting is performed, the bottom of the grinding piece is stably supported, vibration is lowered, and the problem that the grinding quality is affected by vibration is avoided.

The invention discloses an optic zooming CNC grinding machine, comprising a machining cabinet. The machining cabinet is provided with an XY axis regulation platform and an UV worktable for clamping a workpiece. The XY axis regulation platform is provided with a three-direction angle regulation device capable of regulating front and back and left and right positions. A rear bracket is arranged at the rear side of the machining cabinet. The rear bracket is provided with an optic zooming projection device with variable magnification times. A transmission light source is arranged at a position, exacting facing the optic zooming projection device, below the machining cabinet. The UV worktable is provided with a permanent magnetic table. The permanent magnetic table is positioned between the optic zooming projection device and the transmission light source, and the three-direction angle regulation device is provided with a cutting device. The optic zooming CNC grinding machine is high in grinding precision, convenient to adjust and has variable magnification times.

The invention provides a method for cutting an ultra-thin tempered glass by laser. Compared with the existed mechanical CNC (computer numerical control) grinding on the market, energy of a laser beam cuts a glass by a non-contact way, and the method avoids the shortcoming of edge breakage caused by mechanical contact; meanwhile, for the heating action zone of the laser is small, the end face cutting quality is higher; as for the ultra-thin tempered glass, laser can reach good cutting but CNC grinding cannot achieve; compared with laser ablation technology of picosecond galvanometer, taper of the glass end face is eliminated for the light beam scans the glass sample surface vertically after focusing, and thus the radial loading capacity of a sample is promoted; cutting process is one-time molding, the roughness of the sample end face is largely reduced and the sample quality is further promoted; moreover, the processing speed is better than the galvanometer scanning way; the method is applicable to the large-batch production and further promotes the product yield, and is good for industrial application.

The invention belongs to the technical field of safety protection of numerical-control grinding machines, and particularly relates to a safety protective device used for a numerical-control grinding machine. The safety protective device comprises a table rack, wherein the top of the table rack is fixedly equipped with a supporting frame; one side of the supporting frame is fixedly equipped with amotor; a grinding wheel is fixedly mounted on the output shaft of the motor; one side, close to the grinding wheel, of the supporting frame is fixedly equipped with two connecting rods; sides, close to each other, of the two connecting rods are fixedly equipped with the same protective cover; a through hole is formed in the inner wall of one side, close to the supporting frame, of the protective cover; the output shaft of the motor penetrates through the through hole and is rotatably connected to the inner wall of the through hole; the grinding wheel is positioned in the protective cover; first mounting holes are formed in inner walls of two sides of the protective cover; and first guide tubes are fixedly mounted in the two first mounting holes. The safety protective device can effectivelyavoid a condition that workpiece fragments transversely fly while the grinding machine works, guarantees safety of an operator, and also guarantees an operation environment to be clean.

The invention relates to the technical field of mechanical equipment, in particular to a horizontal single-sided numerically controlled spring grinding machine. Multiple springs to be ground can be placed in multiple spring placement grooves on the spring placement lower plate and the spring placement upper plate of the horizontal single-sided CNC spring grinding machine, and the positioning plate can make the front ends of the springs flush and compact The cylinder presses the spring tightly, and the grinding wheel drive motor drives the grinding wheel to grind the end of the spring. During the grinding process, the outlet pipe of the water pump cools the grinding wheel, and the skateboard drive motor and servo motor can drive the spring to move, and finally grind one end of the spring. In addition, the use of this device reduces the labor intensity of workers, improves labor efficiency, and ensures that the quality of the finished springs after grinding is stable and uniform. In short, the horizontal single-sided CNC spring grinding machine has a reasonable structure design, is easy to use, can effectively improve the quality of spring grinding, and is suitable for popularization and use.

The invention discloses a method for measuring a machine main shaft zero point and a grinding head radius of a computerized numerical control (CNC) grinding machine. The method comprises the following steps of: (1) controlling the CNC grinding machine to grind a plane mirror, measuring the profile error data curve of the plane mirror, and making a reference compensation file of a guide rail according to measured error data; (2) compiling CNC codes aiming at a workpiece to be machined according to the zero point coordinate of a machine main shaft and data about the grinding head radius which are provided by a manufacturer, and the reference compensation file obtained in the step (1), and controlling the CNC grinding machine to machine and obtaining the rough-machined workpiece; (3) measuring the bus profile of the rough-machined workpiece by using a profile meter; and (4) analyzing the position of the zero point coordinate of the machine main shaft and the deviation of the grinding head radius by using data processing program which is compiled based on a data analysis model, according to the data about the bus profile obtained in the step (3) and the curve equation of the workpieceto the machined. According to the invention, the optimal values of the machine zero point and the grinding head radius of the CNC machine can be conveniently analyzed according to measured data of a machining workpiece, thus the machining accuracy is enhanced.

The invention belongs to the technical field of grinding knife machine tools and particularly relates to a five-axis linkage numerical control grinding knife machine tool. The five-axis linkage numerical control grinding knife machine tool comprises a rack, and the rack is provided with a workbench and a main shaft table, wherein the movement directions of the workbench and the main shaft table are perpendicular to each other; the main shaft table is provided with a steering device, the steering device comprises a index plate, the index plate is internally provided with a steering shaft, the axis of the steering shaft and the axis of a workpiece shaft are perpendicular to each other and are arranged on the same horizontal face, the front end of the steering shaft is fixedly provided with a steering plate, and the steering plate is rotatably arranged on the front end portion of the index plate; the steering plate is provided with a lifting device, the lifting device comprises a lifting table, the lifting table is provided with a main shaft drive device, the main shaft drive device comprises a main shaft, the end portion of the main shaft is provided with a grinding wheel, and the axis of the main shaft and the axis of the steering shaft are perpendicular to each other; and the axis of the steering shaft and the work face of the grinding wheel are jointly arranged in the same plane. By means of the five-axis linkage numerical control grinding knife machine tool, woodworking tool cutters, valve cutters, threading dies, screw taps and other cutters with complex knife edge shapes can be machined automatically.

The invention relates to a machine tool for processing machining tools such as drill bits, screw taps and milling cutters, in particular to a spindle transmission component of a CNC grinding (milling) groove machine tool. The component comprises a fixed tank, a spindle, a linear feed CNC motor and a rotary indexing CNC motor, wherein a collet used for clamping a work piece is arranged at the front end of the spindle; the spindle is divided into a front section and a rear section which are coaxial with each other; the front section of the spindle is a section of spline shaft outside which a spline sleeve is sleeved; the spindle can rotate along with the spindle sleeve and slide forward and backward relative to the spline sleeve; the spline sleeve is arranged on the fixed tank through a bearing and can be driven by the rotary indexing CNC motor; the rear section of the spindle is a section of screw rod matched with a screw rod pair; the spindle can be driven to move forward and backward by the screw rod pair; and the screw rod pair is arranged on the fixed tank through the bearing and is driven by the rotary indexing CNC motor. The spindle transmission component has the advantages of simple structure, small size, convenient manufacturing and installation and high processing accuracy.

A five-axis CNC grinding robot comprises a base, a machining base rotationally connected to the base along a vertical axis, machining spindle heads rotationally connected to the machining base and with the axis line extending in the horizontal direction, a machined workpiece transferring mechanism arranged on the base, a machined workpiece loading portion arranged on the machined workpiece transferring mechanism, and a program control mechanism, wherein the base is made of marble. The base is made of marble, is good in rigidity and does not have thermal deformation, so that the space between the base and the machining base is not prone to loosening, stability is good, and high precision of machined products is kept.

The invention relates to a numerical control grinding machine capable of quickly removing cooling liquid for machining. The numerical control grinding machine comprises a grinding machine, a grindingmechanism, a cooling mechanism, a bearing mechanism, an adsorption mechanism and a screening mechanism; the screening mechanism comprises a scrap iron collecting assembly, a clear water output assembly arranged below the scrap iron collecting assembly, a grinding stone particle collecting assembly arranged below the clear water output assembly and cooperates with the clear water output assembly tocomplete clear water throwing-out work, and a circulating assembly of which one end of communicates with the grinding stone particle collecting assembly and the other end communicates with the cooling mechanism; and the adsorption mechanism and the grinding mechanism work in a synchronous transmission mode through a first transmission mechanism. The technical problems that when water cools the grinding mechanism, the temperature of the water rises, the water cannot be quickly cooled in the recycling process, and then the cooling effect on the grinding mechanism is affected when circulating water conducts cooling work again are solved.

The invention relates to a novel machining technology for grinding a plunger. The novel machining technology comprises the following operation steps of step one, machining the outer circle of the plunger; preparing workblank, roughly grinding the outer circle of the workblank, buffing the roughly-ground outer circle, and finally, finely grinding the outer circle; step two, carrying thermal treatment on the plunger of which the outer circle is machined; step three, machining a straight channel in the plunger on which the thermal treatment is carried out by adopting a CNC (Computer Numerical Control) grinding machine; step four, machining a chute in the plunger by adopting the CNC grinding machine after straight channel machining is completed, carrying out one-step clamping, and automatically overturning one surface which is already machined to machine the other surface. The novel machining technology disclosed by the invention is low in production cost and excellent in product quality.

The invention discloses a numerical control grinding machine with a grinding wheel dynamic balance calibration function and a using method thereof. The numerical control grinding machine comprises a numerical control grinding machine body, a numerical control grinding machine inner cavity is formed in the numerical control grinding machine body, a waste box is fixedly connected to the inner wall of the lower side of the numerical control grinding machine inner cavity, and a grinding wheel spindle mechanism is arranged in the numerical control grinding machine inner cavity. The grinding wheel spindle mechanism can carry out dynamic balance detection on a grinding wheel, a grinding wheel dressing mechanism located at the lower side of the grinding wheel spindle mechanism is arranged in the numerical control grinding machine inner cavity, and the grinding wheel dressing mechanism is used for dressing the grinding wheel. A grinding wheel dynamic balance adjusting mechanism located at the left side of the grinding wheel spindle mechanism is arranged in the numerical control grinding machine inner cavity. According to the numerical control grinding machine, different numbers of balance blocks can be selected according to dynamic balance detection results, the balance blocks with different masses do not need to be replaced and found, therefore, the dynamic balance calibration time is shortened, the installation position is mechanically positioned, the adjusting process is fast, and the dynamic balance calibration precision is high.

The utility model relates to a numerical control grinding machine, which is used for forming and grinding the groove of the intermediate shaft of the ball cage coupling. The CNC system is respectively connected with the servo motor and the stepping motor. Servo motors 1, 2, and 3 are respectively installed on the grinding head frame, column, and bed base to realize the Z, Y, and X-direction linear motion of the CNC system. Servo motor 4 It is connected with the indexing mechanism to realize the numerical control indexing or axial rotation of the workpiece; the stepper motor is connected with the dresser to realize the rotary motion of the diamond pen; the grinding wheel shaft is driven by the grinding head motor to provide the main grinding movement; the machine tool has a semi-closed cover, Air extraction, dust removal and cooling circulation system; the servo motor is driven by a four-axis linkage numerical control system, and the stepping motor and the four-axis linkage numerical control system are controlled by a program controller; the invention is widely used in grinding various curved surfaces of metal parts. The movement and positioning of each part can be controlled by numerical control, with high degree of automation, high precision of grinding wheel dressing, smooth working surface and accurate indexing precision of workpieces, which can effectively improve the working environment and reduce the labor intensity of workers.

The invention discloses a device of line contact polishing of spherical and plane optical elements. The device of line contact polishing of the spherical and plane optical elements comprises a tool shank and a polishing disk matrix. The tool shank is used for being connected with the polishing disk matrix and can be arranged on a tool shaft of computer numerical control machining equipment. A polishing membrane is pasted on the polishing disk matrix. The polishing disk matrix can be a profiling polishing disk matrix or a barrel-type polishing disk matrix. The invention further discloses a method of line contact polishing of the spherical and plane optical elements. A polishing device and a workpiece prepared to be processed are in line contact. In the processing process, contact tracks of the profiling polishing disk matrix and the workpiece prepared to be processed are a part of a meridian sectional curve of the workpiece, and the processing belongs to copying method processing. Contact tracks of the barrel-type polishing disk matrix and the workpiece prepared to be processed are an envelope circle, and the processing belongs to generating method processing. The device and the method of line contact polishing of the spherical and plane optical elements are applied to computer numerical control grinding machines mentioned in a Chinese patent (ZL200810103309.8), are matched with special process software to be used, and can achieve the goals of improving processing accuracy and processing efficiency, and reducing production cost.