253results about How to "Guaranteed grinding accuracy" patented technology

The invention discloses a robot parallel polishing system which comprises a coarse polishing system, a refined polishing system, a base component, a system control cabinet, a pneumatic control cabinet, a robot vision self-positioning system, workpieces and a working table. The workpieces with large free curved faces can be coarsely and finely polished through the polishing systems at the same time, simultaneous polishing on the two same workpieces can be achieved, the polishing accuracy can be effectively guaranteed, and the polishing efficiency is improved. Before the robot parallel polishing system works, the polishing areas are divided by path generative software according to three-dimensional models of the workpieces, the polishing paths are generated, standards of the workpieces are rapidly and accurately demarcated through the robot vision self-positioning system, two industrial robots drive a pneumatic polishing head to conduct coarse polishing and refined polishing on the polishing areas according to the planed paths, the pneumatic mild force control technology, the normal polishing force control technology and the path real-time calibration compensation technology are adopted in the polishing process, and the polishing accuracy and the coincidence of the polishing quality are effectively guaranteed.

The invention relates to a nanoscale high-flow pin-type sand mill comprising a rack and a sand cylinder which is arranged on the rack and is sealed by a left cover and a right cover, wherein a feed pipe and a discharging pipe are respectively arranged on the two sides of the sand cylinder; a spindle passes through the left end cover to extend into the sand cylinder and is fixedly provided with a rotor; the surrounding wall of the rotor is axially provided with a plurality of rows of pins; a separator is installed on the sand cylinder and is communicated with the discharging pipe; one end of the rotor is installed on the spindle, and the other end of the rotor is axially provided with a groove; one end of the separator is fixed on the right end cover; and the other end of the separator passes through the right end cover to extend into the groove. In this way, the length of the sand cylinder can be effectively shortened to increase the diameter thereof, thus the spindle can be designed to be short and thick so as to improve the rotational speed of the spindle and increase the linear speed of the material and grinding medium in the sand cylinder; and the material is fully dispersed and ground to ensure grinding precision and improve grinding efficiency.

The invention discloses a device for grinding the surface of a long-shaft type workpiece, which comprises a guide rail arranged on a lathe bed, wherein the guide rail is provided with a grinding head sleeved on the workpiece annularly; the grinding head is equivalently provided with at least two grinding strips annularly; the grinding head is also provided with a structure to drive all the grinding strips to perform radial motions so as to enclasp or break away from the workpiece; and the grinding head is driven to perform axial reciprocating movement on the guide rail by a driving device, and achieves the processing of grinding the outer circular surface of the workpiece through the rotary motion of the workpiece and the axial reciprocating movement of the grinding head. The grinding head of the device is sleeved on the workpiece annularly and performs axial reciprocating movement along the guide rail simultaneously so as to ensure the straightness of the motion and the grinding precision of the workpiece surface in the grinding process, and solve the difficult problem that the processing quality cannot reach the design requirement in the process of the one-step grinding of the long-shaft kind workpiece, thus the workpiece roundness, the cylindricity and the surface roughness can achieve the designed specified value, and the product quality and the working efficiency are improved.

The invention discloses an automatic precision grinding device for the outer surfaces of shaft type workpieces and relates to the technical field of magnetic grinding. The device comprises a baseplate, a heel block, a driving wheel, a driven wheel, a transmission belt, a main shaft end cover, a first transmission box, a positioning seat, a flange plate, a three-jaws self-centering chuck, a grinding device, a connecting block, a grinding support base, a workpiece positioning base, a tailstock, a second motor, a coupling, a screw positioning seat, a screw, a supporting plate, a nut, a sensor positioning seat, a limit sensor, a slide way, the nut and a sliding block. A punched hole is formed in the top and/or the side of the grinding support base, a cylindrical cam is arranged on a connecting rod, the cylindrical cam is provided with a rotating rod, the grinding support base is provided with an arc block, a rotary knob is installed on the arc block, and the rotating rod is sleeved with the rotary knob. The automatic precision grinding device for the outer surface of shaft type workpieces has the beneficial effects that the device is simple in operation, low in cost, capable of adapting to shaft type workpieces of different specifications , capable of improving the machining efficiency and capable of improving the precision and quality of the outer surface of the shaft workpieces.

The invention discloses a motion path anticollision adjustment method for grinding of a robot belt. The motion path anticollision adjustment method comprises the steps of (1) generating a robot motion path: converting a workpiece grinding path into the robot motion path; (2) adjusting the anticollision of the robot motion path: changing the position and posture of each cutter contact point on the motion path when grinding is performed by a robot, so that the robot is prevented from colliding during machining. The motion path anticollision adjustment method has the characteristics of flexibility and practicability, a three-dimensional problem is simplified into a two-dimensional problem for searching an optimized curve in a reliable area in a collision layer, the robot can be effectively prevented from colliding when a workpiece is ground by the belt, and additionally, the grinding accuracy and efficiency can be guaranteed.

The invention discloses an automatic edge finding and grinding device for a specially shaped metal part. The automatic edge finding and grinding device comprises a support frame and a driving device;the support frame comprises a plurality of support legs, first cross beams connected with the upper ends of the support legs, vertical columns arranged at the upper parts of the first cross beams, andsecond cross beams connected with the upper parts of the vertical columns; the driving device comprises a first motor installed at the upper part of a first motor base, a sleeve connected with an output shaft of the first motor, and a crank arm arranged in the sleeve, and the sleeve is internally provided with a tension spring; one side of a driving gear is provided with a first driven gear, andthe other side of the driving gear is provided with a second driven gear; and one end of a first rotating shaft is provided with grinding wheels, and one side of each grinding wheel is provided with atop wheel. According to the automatic edge finding and grinding device, the grinding wheels are arranged on the upper and lower side faces of a workpiece, and used for grinding the both sides of theworkpiece; one side of each grinding wheel is provided with the top wheel, and the top wheels are traveled around the contour of a specially shaped workpiece, so that the edge grinding device is usedfor automatically finding an edge around the specially shaped workpiece for grinding; and the grinding accuracy of the specially shaped workpiece is ensured, and the grinding efficiency of the specially shaped workpiece is improved.

The invention provides a grinding pad fixing device and a chemical machinery grinder; the grinding pad fixing device comprises a vacuum system connected with a grinding platform and a substrate absorbed on the grinding platform in a vacuum manner; the grinding pad is fixed on the substrate. The grinding pad fixing device uses the grinding platform connected with the vacuum system, so a vacuum absorption surface is formed on the top surface of the grinding platform; the substrate adsorbed on the grinding platform through vacuum can fix the grinding pad on the grinding platform; when the grinding pad needs to be replaced, the substrate and the grinding pad can be integratedly dismounted from the grinding platform without damaging the grinding pad, thus ensuring the lift of the grinding pad; when the grinding pad is fixed, the grinding pad can be fixed without having deformation caused by improper fixation, thus ensuring grinding precision.

The invention discloses a grinding miller provided with a chip blowing device. The grinding miller comprises a workbench (1), a chip collection box (2), a hold-down gear and a grinding device, wherein the grinding device is formed by a servo motor (4), a grinding disc (5), a fixed block (6) and an oil cylinder (7), the oil cylinder (7) is vertical to the lateral surface of the fixed block (6) and is fixedly arranged on the fixed block (6), the servo motor (4) which is vertical to the lateral surface of the fixed block (6) is arranged on a piston rod of the oil cylinder (7), a support table (8) is parallel to the grinding disc (5) and is arranged on the workbench (1), a pressure plate (10) is arranged on the piston rod of a cylinder (9), the pressure plate (10) is parallel to the grinding disc (5) and is arranged between the support table (8) and the grinding disc (5), and an air outlet (15) of a reversing valve (12) is downwards formed above the grinding disc (5). The grinding miller has the following beneficial effects of simplicity in operation, high grinding precision and capabilities of reducing the labor intensity of workers and quickly implementing clamping of disc type work pieces.

The invention relates to a multi-roller mill backing roller integral repairing method, which includes steps of: selecting, assembling and grinding, wherein bottom surface of a base plate (26) of a backing roller is used as installation standard, the backing roller to be repaired is integrally installed on a grinding processing standard surface of a reconditioning mold. The invention also relates to a multi-roller mill backing roller integral repairing device, which includes a mold arranged on a workbench (21). The mold comprises a fixed base (1) for supporting the backing roller to be repaired, the fixed base is provided with a compaction roller driving device with a power machine and a transmission mechanism and compaction devices which has same number with bearing roller on the backing roller and are arranged at one side or two sides of the backing roller to be repaired, a groove (29) which is adapted with shape of the base plate of the backing roller is arranged at upper end of the fixed base (1), and the groove is in V shape or circular arc shape. The invention can carry out integral gapless grinding for the backing roller to be repaired, realizes integral moulding grinding, and has advantages of simple process, high precision and low cost.

The invention relates to the technical field of knife grinding, and discloses a blade grinding device. The blade grinding device comprises a rack, a feeding assembly, a discharging assembly, a grinding abrasion wheel assembly and a clamping hand fixed seat moving along with a conveying belt. The clamping hand fixed seat is fixed to the conveying belt and is rotationally connected with a clamping hand. At least one blade trough used for fixing to-be-ground blades is arranged at one end of the clamping hand. The clamping hand fixed seat can do reciprocating motion along with the conveying belt,and the clamping hand can rotate on the clamping hand fixed seat by a preset angle. When the clamping hand fixed seat moves to the feeding station, the clamping hand fixed seat cooperates with the feeding assembly to feed blades. When the clamping hand fixed seat moves to the grinding station, the clamping hand fixed seat cooperates with the grinding abrasion wheel assembly to grind blades. When the clamping hand fixed seat moves to the discharging station, the clamping hand fixed seat cooperates with the discharging assembly to discharge blades. Compared with the prior art, single-face grinding is carried out on blades, the problem that cutting edges ground through traditional mechanical knife grinding are prone to being broken is solved, multiple blades can be fed at a time, and one-timefeeding and single-face grinding of multiple blades are achieved through clamping hand rotating and moving.

The invention discloses a friction wedge type automatic clamp for cylindrical grinding and an application method thereof. The friction wedge type automatic clamp for cylindrical grinding comprises a connecting flange, a left end cover, a head rack tip, a positioning flange, an intermediate sleeve, a hexagonal nut, a spline inner sleeve, a supporting ring, a wedge ring, a shifting ring, wedges, a supporting ring positioning sleeve, a needle bearing and a right end cover, wherein the connecting flange is mounted onto a gear of a head rack through a screw; the connecting flange, the supporting ring and the shifting ring are sequentially fixed through the screws; the shifting ring is connected with three wedges through three uniformly-distributed shifting pins; the three wedges are correspondingly embedded into three bevel grooves of the wedge ring; the positioning flange is fixed to a machine body of the head rack and is fixedly connected with the intermediate sleeve; the spline inner sleeve is connected with the wedge ring; a pre-tensioned inner conical spring and a pre-tensioned outer conical spring are mounted between the intermediate sleeve and the spline inner sleeve. According to the friction wedge type automatic clamp for the cylindrical grinding, an automatic wedge clamping manner is used for replacing an existing general manual chuck and a hydraulic driving chuck, so that the structure is simplified, and meanwhile, the automatic clamping function is achieved; in addition, the grinding precision is ensured.

The invention relates to a polishing device for false tooth machining. The polishing device comprises a base, an installation seat which is placed on the base and is used for fixing a false tooth in the polishing process, a support fixed to the base and a grinding tool which is installed at the end, away from the base, of the support and is used for grinding the false tooth. The polishing device is characterized in that a magnetic worktable is arranged on the upper end face of the base; multiple concentric ring-shaped grooves are formed in the lower end face of the installation seat; magnets are arranged in the ring-shaped grooves; and a clamping mechanism used for clamping and fixing the false tooth is arranged on the installation seat. The polishing device has the effects that the relative position between the installation seat and the base is conveniently adjusted, and therefore the grinding process is more convenient.

The invention relates to a pre-grinding hob for machining micro-segment gears. A cutting edge normal tooth profile of the pre-grinding hob comprises a main cutting edge segment, an addendum arc segment and a characteristic curve connecting segment, the main cutting edge segment is a normal engagement contacting tooth profile curve segment for machining the micro-segment gears, micro-segment curved lines or micro-segment straight lines are smoothly connected to form the main cutting edge segment, the length of the main cutting edge segment is not larger than 1 micrometer, the characteristic curve connecting segment is a connecting curve segment of a pre-grinding hob tooth addendum arc segment and a micro-segment tooth profile segment, and the trend and the length of the characteristic curve connecting segment are related to the modulus, the initial pressure angle, the pressure angle increment, the grinding allowance, the distribution form of the grinding allowance and the like of the micro-segment gears to be machined. The high-precision micro-segment gears can meet specific use requirements and mass production conditions as far as possible according to theoretical calculation and experience of the trends and the lengths of an undercutting arc segment and a characteristic transition curve segment.

The invention relates to the technical field of optical lens production and especially relates to a polishing device for optical lens production. The device comprises a base. A fixing mechanism for fixing an optical lens is arranged at a top of the base. Edge grinding mechanisms are arranged on a left side and a right side of the fixing mechanism. A dedusting mechanism is arranged inside the base. In the invention, the fixing mechanism is arranged, movement of two side clamping plates is used, the lens positioned at a top end of a placing disc is always located in a center of the placing disc, and a pressing block is used for stably fixing the lens so that product scrap caused by clamping deviation of the lens to be processed is avoided, and positioning precision is high; positions of polishing wheels on two sides can be rapidly adjusted by arranging a first motor, and polishing precision is guaranteed by arranging a third motor and finely adjusting the positions of the polishing wheels; and polishing quality can be improved, and pollution to the environment can be reduced by arranging the dedusting mechanism.

The invention discloses polishing equipment. The polishing equipment comprises a walking device, a polishing device, a linear driving device, a first angle adjusting device, and a second angle adjusting device, wherein the polishing device can rotate about a first axis so as to polish a base surface to be polished; the linear driving device is arranged on the walking device and is used for drivingthe polishing device to move in a horizontal direction and/or a vertical direction; the first angle adjusting device is used for adjusting the deflection angle of the polishing device relative to a first plane; the first plane is perpendicular to the first axis; the second angle adjusting device is used for adjusting the deflection angle of the polishing device relative to a second plane; and thesecond plane is perpendicular to the first plane and perpendicular to the forward direction of the walking device. The polishing equipment of the embodiment can automatically perform polishing; the overall automation degree of the polishing equipment is increased; and meanwhile the angle of the polishing device can be adjusted to ensure the polishing accuracy of the polishing device and the polishing flatness of the base surface to be polished.

A set of special equipment for forming and grinding abrasive wheels comprises a supporting base, wherein a workpiece tool is arranged on the lower portion of the supporting base, a grinding mechanism capable of moving in the direction of the X axis and the direction of the Z axis of the supporting base is arranged on the upper portion of the supporting base and located above the workpiece tool, the grinding mechanism comprises a vertical plate capable of moving in the direction of the Z axis of the supporting base, a rotating shaft arranged in the direction of the X axis of the supporting base and a first motor for driving the rotating shaft to rotate are arranged on the vertical plate, a blade is fixed to one end of the rotating shaft, an extension segment is arranged at the other end of the rotating shaft, a corundum tool is detachably installed on the extension segment, an operating table board capable of moving in the direction of the Y axis of the supporting base is arranged beside the extension segment, and a pair of bath bricks for grinding the abrasive wheels are fixed to the operating table board. The equipment is low in manufacturing cost, the machining efficiency is substantially improved while forming and grinding can be achieved, meanwhile, tool setting and feeding is convenient to perform when the abrasive wheels are ground, the grinding accuracy is guaranteed, and the abrasive wheel forming and grinding time is effectively shortened.

The invention relates to a diamond grinding disc and a preparation method thereof, and belongs to the technical field of diamond tools. The diamond grinding disc comprises a disc-shaped base body, first and second diamond tool bits are arranged on the surface of the disc-shaped base body in a spaced manner, the first and second diamond tool bits are in segment shapes, and horizontal projections are each in a shape formed by two parallel arc sides and two straight sides; the connecting line of the midpoints of the two straight sides form the length direction of the first and second diamond toolbits; the edge of one arc side of the first diamond tool bit extends along the outer edge of the base body; one straight side of the second diamond tool bit is arranged to be close to the outer edgeof the base body, and the length direction extends in the radial direction. The diamond grinding disc can be applied to an airport runway, a bridge project, a highway and application places, such as special reinforced concrete, with high requirements for concrete surface grinding smoothness and roughness.

The invention discloses a cylindrical work piece grinding and processing tooling which is characterized by consisting of a cylindrical tooling body and a process plug head; the tooling body comprises a cylindrical wall and a cylindrical bottom; a threaded through hole is arranged in the center of the cylindrical bottom; the process plug head is fixedly arranged in the threaded through hole; a central hole is arranged in the center of the process plug head; and three sets of work piece position adjusting and locking mechanisms are arranged on the cylindrical wall. The invention also discloses a use method of the tooling. According to the tooling and the use method, the work piece coarse and fine grinding and processing problems that the end of a similar piston is provided with no central hole are fully solved, i.e. the central hole can be removed before the surface of the work piece is strengthened, so that very good hardness and wear resistant performance are realized on the surface treatment on the end surface of the work piece.