32results about How to "Good grinding precision" patented technology

The invention discloses a turbine blade numerical control belt grinder and a control method thereof, which relates to a grinding and processing device of a turbine blade and the control method thereof, and is characterized in that: a belt wheelhead and an open numerical control system is provided on the basis of the basic parts of the original machine tool; the belt wheelhead is provided with a grinding belt tightening device and a transmission belt tightening device; a Z-axis serving motor drives a big carriage; an X-axis serving motor drives a small carriage; a C-axis drives a head frame; a B-axis drives a turret; a D-axis is a belt wheelhead motor; and each motor is connected with the control system; the control system is provided with a memory, a control circuit and a blade grinding and a controlling software module. During the operation, the original parameter is firstly input; then a blade grinding and controlling software module is automatically setting up by the system to generate a processing program, make error analysis and machining simulation; and finally a blade actual grinding processing is carried out. The turbine blade numerical control belt grinder is a five-axis and four-linkage numerical control belt grinder, and has the advantages of high efficiency, good accuracy, simple structure, low cost, and convenient control.

The invention relates to a grinding wheel applied to a zirconia ceramic ferrule PC spherical surface. The grinding wheel comprises a grinding wheel base body and a grinding layer, wherein the grindinglayer is mainly composed of an abrasive material, a resin binder and stuffing; the stuffing is made of polytetrafluoroethylene, high-density polyethylene and an active nano-polishing agent; the active nano-polishing agent is composed of the following raw materials of, by weight, 10%-30% of cerium oxide, 5%-15% of ferric oxide, 25%-40% of chromium dioxide and 20%-40% of flake graphite. The grinding wheel belongs to superfine powder grinding wheels, the requirements for curvature radius and high-surface quality of the ferrule PC spherical surface can be met, the grinding wheel is sharp, the shape retention property is good, the processing efficiency is high, and the no-dressing situation can be achieved during grinding.

The invention discloses an elastic rolling floating support for centerless grinding of an outer circle of an annular part. The elastic rolling floating support comprises elastic supporting bodies, supporting sleeves, compressed springs, transition blocks and a supporting seat; the elastic supporting bodies press the supporting sleeves through T-shaped bolts to be connected to the transition blocks, the transition blocks are connected and fixed on the supporting seat of a machine tool shell, one end of each elastic supporting body is provided with a plurality of pairs of supporting heads, alloyballs are correspondingly arranged at the end parts of the supporting heads, and the other ends of the elastic supporting bodies are fixed on the supporting seat; and a coil shell is arranged on theinner side of the supporting seat, a coil is arranged in the coil shell, a sealing body is arranged outside the coil, a magnetic pole is arranged on the outer side of the coil shell, and the magneticpole is fixed on a workpiece shaft. According to the elastic rolling floating support, non-supporting mark grinding is achieved through rolling friction between supporting points and the surface of the workpiece, and follow-up treating matters caused by support marks and even burn are greatly reduced, the influence of the elastic deformation of the workpiece on the grinding efficiency and the quality is reduced, the stress of the elastic supporting points tends to be consistent, and all the points are always in effective supporting states.

The invention discloses a single-station automatic chamfering machine, which comprises a support, an electrical equipment control box, a first conveying mechanism, a second conveying mechanism, a third conveying mechanism, a feeding mechanism, a driving mechanism and a grinding mechanism. The feeding mechanism pushes a magnetic shoe on the first conveying mechanism onto a second conveying mechanism so as to push a magnetic shoe on the second conveying mechanism to convey forwards; the grinding mechanism comprises a front grinding wheel and a rear grinding wheel located on the same horizontal line and driven by a motor; the driving mechanism is driven by a first motor to move up and down on a perpendicular bisector of a connecting line of the two grinding wheels; the front grinding wheel and the rear grinding wheel are located under the front end of the second conveying mechanism and under the rear end of the third conveying mechanism; the lower end of the driving mechanism moves between the second conveying mechanism and the third conveying mechanism; and a magnetic shoe channel for the magnetic shoes to pass through is arranged on the lower part of the driving mechanism. The single-station automatic chamfering machine has the beneficial effects of high grinding efficiency on magnetic shoe chamfers, good grinding accuracy and good working environment, and has the advantages ofsimple structure and convenience in operation.

The invention discloses a cutting and grinding device convenient to use. The cutting and grinding device convenient to use comprises a shell, wherein a first separation chamber, a second separation chamber and a separation plate are arranged in the shell; a reciprocating support, racks, a half tooth gear, a first motor and first fixing shafts are arranged in the first separation chamber, the racksare correspondingly arranged on the two sides of the inner wall of the reciprocating support, the half tooth gear connected with the first motor is arranged in the internal center of the reciprocating support, the half tooth gear is correspondingly meshed with the racks, and the first fixing shafts are arranged at the two ends of the reciprocating support; and a hydraulic device, a hydraulic rod,a first bearing, driving devices, driving mechanisms, driving rotating shafts, polishing brushes, a second motor, a rotating shaft, a rotating sleeve, a fixed base and a receiving plate are arrangedin the second separation chamber, and the hydraulic device is arranged in the center of the top end inside the second separation chamber. The cutting and grinding device convenient to use has the advantages that by arranging the driving mechanisms and the reciprocating support, the polishing brushes swing while rotating, so that the polishing brushes are driven to carry out left-and-right reciprocating motion to polish parts, the grinding and cutting effects of the parts are better, and the working efficiency is improved.

The invention provides a large-sized numerical control cylindrical grinding machine for a crankshaft main journal, which can reduce imbalanced centrifugal inertia force of the revolving crankshaft during grinding, so as to reduce torsion and bending deflection of the crankshaft, meet the roundness processing requirement of the main journal, and realize grinding of a common outer circle of the large-sized crankshaft. The large-sized numerical control cylindrical grinding machine comprises a workpiece lathe bed and a grinding wheel lathe bed, wherein the workpiece lathe body is provided with a headstock and a tailstock; a grinding carriage is arranged on the grinding wheel lathe bed and correspond to the workpiece lathe body; the large-sized numerical control cylindrical grinding machine is characterized by that the grinding carriage is connected with the grinding wheel lathe body through a carriage; the carriage is connected with the grinding wheel lathe body through a guide rail; the grinding carriage is connected with the carriage through a servo motor and a ball screw; a narrow central frame is arranged on the workpiece lathe body; the headstock is fixed at one end of the workpiece lathe body; the tailstock is connected with the workpiece lathe body through the guide rail.

The invention discloses a grinding machine for electronic part production and a using method thereof. The grinding machine comprises a base, a power device is arranged in the middle of the base, firstgrinding devices and a second grinding device are arranged at one end of the power device, first transmission devices and a second transmission device are fixedly arranged on one side of the base, the first grinding devices are rotatably connected with the first transmission devices, the second grinding device is rotatably connected with the second transmission device, the power device comprisesa motor, bevel gears, a rotating shaft and a limiting hole, the motor is fixedly arranged above the base, the rotating shaft is rotatably connected above the base, and the two bevel gears are fixedlyconnected to the side face of the rotating shaft and the output end of the motor. According to the machine and the method, the problems that a traditional grinding machine is inconvenient in grindingprecision adjustment, has limitation and is narrow in application range are solved; and the problems that when the traditional grinding machine grinds an electronic part with high surface roughness, the grinding efficiency is low, and the grinding effect is poor are solved.

The invention discloses a high-performance ceramic combination grinding wheel which is prepared by mixing a ceramic binder and modified diamond, wherein the ceramic binder is prepared from the following raw materials in parts by weight: 10 to 15 parts of silicon dioxide, 2 to 5 parts of aluminum oxide, 1 to 4 parts of anhydrous sodium carbonate, 0.5 to 5 parts of boric acid, 2 to 6 parts of potassium oxide, 5 to 10 parts of calcium carbonate, 4 to 8 parts of anhydrous lithium carbonate, 1 to 4 parts of oxidized polyethylene wax and 2 to 6 parts of titanium oxide; the modified diamond is prepared from the following raw materials in parts by weight: 30 to 45 parts of a common diamond abrasive material, 5 to 10 parts of a black corundum abrasive material, 1 to 3 parts of chisel tool steel powder, 3 to 6 parts of borax, 2 to 6 parts of nano-copper powder, 4 to 8 parts of absolute ethyl alcohol, 6 to 9 parts of hydrochloric acid and 1 to 3 parts of butyl titanate. Due to the mode, the high-performance ceramic combination grinding wheel disclosed by the invention has the advantages of low grinding power, high grinding efficiency, good grinding precision, long service life and easiness in modification, and can be widely applied to molding grinding of engineering materials.

The abrasive grinding wheel includes an annular abrasive grain layer formed by a diamond abrasive grain or CBN abrasive grain and fixed to an outer peripheral surface of a cylindrical grinding wheel core by an adhesive agent. The abrasive grinding wheel further includes a waterproof agent applied on both side end surfaces and an inner peripheral surface of the cylindrical grinding wheel core in order to prevent any water ingress into the inside of the core.

The invention discloses a one-time grinding device and method of double blocking sides of an inner ring of a short cylinder. The grinding device comprises a vertical driving device, a left-right driving device, a grinding wheel and a grinding wheel mounting seat. The vertical driving device is located on the grinding wheel mounting seat, and used for driving the grinding wheel mounting seat to move upwards or downwards; the left-right driving device is located on the grinding wheel mounting seat and used for driving the grinding wheel mounting seat to move leftwards or rightwards; the grinding wheel is mounted on the grinding wheel mounting seat, and the length of the grinding end of the grinding wheel is smaller than the width of the inner ring of the short cylinder. According to the one-time grinding device and method of the double blocking sides of the inner ring of the short cylinder, grinding of the double blocking sides of the short cylinder can be completed simply by locating the short cylinder once, and the grinding precision of the blocking sides is easy to ensure. In addition, the large grinding wheel can be adopted, and the utilization rate of the grinding wheel is obviously improved. The one-time grinding device and method of the double blocking sides of the inner ring of the short cylinder have the advantages of being high in grinding efficiency and good in grinding precision.

The invention discloses a human-simulated tool testing station. A levelling polishing platform comprises a polishing platform, fixing blocks and beam-type switches. A cutter feeding device comprises abase seat, a moving platform, a power assembly and an organ protecting cover. The moving platform is slidably matched with a sliding rail and driven by a power device. The organ protecting cover is arranged at two ends of the moving platform correspondingly and connected between an end and an end plate of the moving platform. A mechanical arm is connected with the side, away from the moving platform, of the base seat. An angle grinder flexible attaching device comprises a base plate, a buffering plate, an angle grinder body and a buffering assembly. The base plate and the buffering plate arearranged at an interval. The buffering assembly comprises linear bearings and elastic pieces, the linear bearings are connected between the base plate and the buffering plate, and the elastic pieces are connected between the base plate and the buffering plate in an abutting mode. The angle grinder body is arranged on the side, away from the buffering assembly, of the buffering plate. The side, away from the buffering plate, of the base plate is connected to the side, away from the base plate, of the moving plate through a quick changing device. According to the human-simulated tool testing station, the machining precision is high, and the quality of products is good.