345 results about "Cnc grinding" patented technology

The invention provides a numerical control grinding machine product quality real-time monitoring and optimizing method fused with the Internet of Things, and relates to the technical field of numerical control grinding machine control. Processing parameter retrieval is carried out; performing frequent item mining on the historical processing data; performing fluctuation centralized identification on the historical vibration parameter set according to the vibration parameter tolerance interval; performing deviation analysis on the historical process quality parameters by using the process quality parameter tolerance interval; performing process monitoring step length identification based on the vibration parameter fluctuation coefficient and the process quality deviation coefficient; and the monitoring branch is used for extracting and analyzing real-time monitoring data and optimally controlling the numerical control grinding machine. By means of the method and device, the technical problem that in the prior art, due to the fact that the adaptability of monitoring step length adjustment is insufficient, key parameters are difficult to adjust in time, and the product quality is affected can be solved, through deep analysis of historical data, refined management and optimization of the machining process of the numerical control grinding machine are achieved, and the product quality is improved.

The invention discloses a numerical control grinding machine intelligent control method and device combined with real-time feedback, and relates to the technical field of grinding machine control. The method comprises the steps that historical machining records of a plurality of numerical control grinding machines in a target factory are collected and divided, a plurality of grinding machine domains of the same kind are determined, machining deviation analysis is conducted, and a plurality of static compensation coefficient sets are obtained; primary compensation is conducted on the initial machining parameters, and the multiple numerical control grinding machines are controlled to conduct grinding machining; performing fixed-point compensation on the primary compensation parameter set to obtain a secondary compensation parameter set; and the multiple numerical control grinding machines are controlled to conduct grinding till the equipment stops continuous operation or grinding wheel accessories are replaced. The technical problem that in the prior art, in the same workshop, due to the fact that the equipment states are inconsistent, and the machining consistency of batch products is poor along with the change of the machining time and the grinding wheel state is solved, and the technical effects that the machining process of the numerical control grinding machine is accurately controlled in an omnibearing mode, and the machining consistency of the batch products is poor are achieved.

The invention relates to the technical field of machine tool equipment, in particular to a numerical control grinding machine product quality real-time monitoring optimization method based on the Internet of Things. The method comprises the following steps: acquiring multi-node real-time operation data of the numerical control grinding machine; working state parameters of key components of the grinding machine are counted according to the multi-node real-time operation data; the product machining quality fluctuation trend is determined based on the multi-node real-time operation data and the working state parameters of the key components of the grinding machine; according to the product machining quality fluctuation trend, the cooperative change rule of the grinding machine tailstock jacking force is detected; and determining the geometric accuracy limitation trend of the workpiece according to the cooperative change rule of the jacking force of the tailstock of the grinding machine. According to the method, the control parameter adjustment behavior, the system response state and the quality detection result of the numerical control grinding machine are associated and integrated, and the tracking and effect evaluation of the key control behavior are realized by constructing a historical contrast system of the adjustment behavior and the response data.

The invention discloses a dynamic thermal deformation compensation method for a numerical control grinding machine. The dynamic thermal deformation compensation method comprises the following steps that three-dimensional temperature field data of a mechanical head are obtained in real time through a distributed temperature monitoring unit; inputting the three-dimensional temperature field data into a numerical control grinding machine thermal deformation digital twin model, and predicting thermal deformation and spatial distribution of the mechanical head in a future time period through coupling temperature field-stress field-deformation field simulation calculation; and generating a compensation strategy according to the thermal deformation and the spatial distribution, driving the radiator to move to a thermal deformation sensitive area for directional heat dissipation, and adjusting the position and posture of the grinding head through a five-axis linkage system of the numerical control grinding machine to offset the predicted thermal deformation. A three-dimensional temperature field of the mechanical head is reconstructed in real time through the distributed temperature monitoring unit, and accurate real-time prediction of thermal deformation and spatial distribution is achieved; and meanwhile, a five-axis system is cooperated to pre-adjust the position and posture of the grinding head, and the thermal deformation restraining precision and the machining stability are remarkably improved.

The invention belongs to the technical field of numerical control machine tool control, and discloses a deep groove ball bearing ring grinding error compensation method and system, and the method comprises the steps: monitoring the temperature of a numerical control grinding machine body and a main shaft in real time through a plurality of temperature sensors, and obtaining the temperature field distribution data of a numerical control grinding machine; according to the numerical control grinding machine temperature field distribution data, the temperature gradient of each temperature measurement position is calculated; comparing each temperature gradient obtained by calculation with a preset temperature gradient threshold value, and judging whether a temperature measurement position with the temperature gradient exceeding the temperature gradient threshold value exists or not; when the temperature measurement positions with the temperature gradients exceeding the temperature gradient threshold exist, error compensation parameters of the numerical control system are determined according to the temperature gradients of all the temperature measurement positions, and the grinding machining track and grinding parameters are corrected; therefore, the grinding precision of the deep groove ball bearing ring can be improved.

The invention discloses a multi-channel numerical control grinding machine tool for machining an outer spherical surface structure of a ball head, and relates to a grinding system for machining an outer spherical surface of a medical thighbone ball head. The multi-channel numerical control grinding machine tool is high in machining precision and production efficiency. The multi-channel numerical control grinding machine tool comprises a composite workbench and a linear servo driving module, wherein a workpiece servo main shaft module is arranged on the composite workbench; a grinding servo main shaft module is arranged on the linear servo driving module; the composite workbench comprises a vertical servo rotating shaft, and a workpiece servo feeding sliding table is arranged on the vertical servo rotating shaft. The workpiece servo main shaft module comprises a workpiece inner positioning and clamping fixture; an automatic online detection module is arranged on one side of the workpiece servo main shaft module; a linear servo sliding table is arranged on the linear servo driving module, and power of the linear servo sliding table is provided by a linear motor; a grinding floating cutter handle is installed on the grinding servo main shaft, and a cutter assembly is installed on the grinding floating cutter handle.

The invention provides a multi-station numerical control gear grinding machine tool which comprises a machine tool body, a rotary indexing table stand column, a sliding table, a mounting base, a rotary shaft and a grinding wheel spindle, quick switching of workpieces can be achieved only through rotation of the rotary indexing table stand column, the distance between the workpiece spindle and the center of the rotary indexing table stand column is shortened by arranging a workpiece containing concave position, and the machining efficiency is improved. And the transmission precision can be improved. The rotating shaft is arranged in the second installation space, the second installation space communicates with the first installation space, a rotating drive of the rotating shaft can be arranged in the first installation space, the overall gravity center of the grinding wheel spindle and the sliding table is located in the sliding table, the stability of the structure can be improved, and then the transmission precision is improved. Therefore, the multi-station numerical control gear grinding machine tool can effectively improve the transmission stability and the transmission precision, so that the machining quality is improved, and the stability of equipment is improved.

The invention discloses a temper mill bottom plate machining method which comprises the following specific steps that S100, appearance inspection is conducted on a bottom plate blank, and whether cracks and sand hole defects exist on the surface or not is checked; proper machining allowance is reserved according to the design size of the bottom plate; s200, a horizontal boring and milling machine is adopted, a hard alloy cutter is selected, and rough machining is conducted on the base plate blank in a multi-cutter and multi-blade milling mode; s300, the base plate obtained after rough machining is placed in an aging treatment furnace, the temperature is increased to 550-600 DEG C at the speed of 50-60 DEG C per hour, heat preservation is conducted for 4-6 hours, then the base plate is slowly cooled to the room temperature at the speed of 30-40 DEG C per hour, and therefore internal stress generated by rough machining is eliminated; s400, a horizontal boring and milling machine is adopted for conducting semi-finish machining on the bottom plate subjected to aging treatment; s500, carrying out vibration aging treatment on the semi-finished bottom plate by adopting vibration aging equipment; and S600, a high-precision numerical control grinding machine and a boring and milling machine are adopted for conducting finish machining on the bottom plate subjected to vibration aging treatment.

The invention provides a visual guidance numerical control grinding and polishing surface quality real-time regulation and control method and system, and the method comprises the following steps: starting numerical control grinding and polishing equipment, checking a power supply, air pressure and the operation state of a robot, switching the equipment to an automatic operation mode, carrying out the registration of an industrial camera and a robot coordinate system through a calibration plate, and carrying out the real-time regulation and control of the robot. And establishing a mapping relationship between the image and the physical size. Workpiece surface images are collected in real time through linkage of a visual sensor and robot IO signals, characteristic parameters are analyzed through a convolutional neural network model, quality scores are generated, grinding and polishing parameters (the rotating speed of a main shaft is + / -500 RPM, the thrust of a bit force shaft is + / -10 N, and the adjustment amplitude is smaller than or equal to 20%) are dynamically adjusted in combination with a parameter optimization rule base and a PID algorithm, and the grinding and polishing precision is improved. A'detection-evaluation-regulation 'closed-loop control process is formed, the problem of material waste caused by the fact that the quality state cannot be fed back in real time in traditional offline detection is solved, self-adaptive response to surface topography changes is achieved by replacing experience preset parameters, and machining consistency is improved.

The invention relates to the technical field of grinding machine machining, in particular to a multifunctional grinding machine for mold machining, which comprises a numerical control grinding machine, a connecting assembly, a grinding wheel, a protective cover and the like, the numerical control grinding machine is connected with a protective cover; a connecting assembly is arranged in the protective cover; the connecting assembly is connected with a grinding wheel; two water flowing grooves are formed in the numerical control grinding machine; a narrow surface is arranged on the grinding wheel; and a wide surface is arranged on the grinding wheel. The grinding wheel state can be changed according to the area of the grinding face of the metal mold, the installation state of the grinding wheel does not need to be manually adjusted, and the grinding face orientation of the grinding wheel is adjusted; cooling liquid is pumped into the liquid inlet pipe through the external cooling pump, the cooling liquid enters the position between the conical plate and the grinding wheel along the liquid inlet pipe and then is sprayed out of the through hole, in the process, cooling and lubricating work is conducted through the cooling liquid flowing out from inside to outside, and it is guaranteed that the grinding wheel polishing metal mold is cooled and lubricated through the cooling liquid; the service life of the grinding wheel is prolonged.

The invention relates to the technical field of grinding control, in particular to a constant-power grinding control method, system and equipment of a numerical control grinding machine. According to the method, in a preset historical time period of a to-be-regulated moment, a time sequence curve of the deviation of the grinding power of the numerical control grinding machine relative to the preset grinding power is obtained and subjected to time sequence decomposition, and then proportional gain in PID control parameters is obtained according to the change trend of a trend component and the power deviation at the to-be-regulated moment in the trend component; obtaining an integral gain in the PID control parameters according to the periodic fluctuation characteristics of the seasonal components; according to the change trend of the time sequence curve and the fluctuation characteristics of the residual component, and in combination with the proportional gain and the integral gain, obtaining the differential gain in the PID control parameters; and finally carrying out constant-power grinding control on the numerical control grinding machine. The PID control parameters are adaptively adjusted based on the time sequence decomposition result of the power deviation, and the constant power control effect on the numerical control grinding machine is improved.

The utility model belongs to the technical field of separating devices, and relates to an oil-liquid separating device of a numerical control grinding machine tool, which comprises a separating cylinder, a filtering device, a machine frame and a separating motor, the separating cylinder is arranged on the lower portion of the machine frame, an oil-liquid tank, a rotating drum and a rotating shaft coaxial with the separating cylinder are arranged in the separating cylinder, and the lower end of the rotating shaft is connected with the separating motor. The oil liquid tank is coaxially suspended in the separation barrel, the filtering device is arranged above the oil liquid tank and comprises a filtering box, an electric heating strip, a magnetic stirring rod and a stirring rotating shaft, a filtering net disc is arranged at the bottom of the filtering box, and the upper end of the stirring rotating shaft is connected with a stirring motor. The electric heating strip melts greasy dirt condensed on waste chips and then flows into the lower separating barrel along with an oil-liquid mixture for centrifugal separation, a centrifugal separation method is adopted for oil-liquid separation, waste oil and cutting fluid are rapidly separated, and the recycling speed of the cutting fluid is increased.

The invention relates to the technical field of grinding machining, in particular to a complex curve indexable blade grinding method based on NURBS curve fitting, and the method comprises the following steps: S1, collecting and processing data, extracting coordinates, denoising and homogenizing the data; s2, performing NURBS curve fitting, and solving an equation to fit a curve; s3, back calculation of the adaptive interpolation curve is carried out, and curvature smoothness is verified; s4, curve machining acceleration and deceleration control, segmented acceleration and deceleration and dynamic parameter adjustment are carried out; and S5, the numerical control grinding machine executes machining, coordinate conversion is conducted, and real-time error monitoring is passed. Complex curve machining is achieved based on URBS curve fitting, a seven-section S-shaped curve acceleration and deceleration control algorithm is adopted, it is guaranteed that the machining speed reaches the planned maximum speed and cannot reach the planned maximum acceleration, acceleration sudden change is eliminated, mechanical shock and vibration are effectively reduced, and the machining precision is improved. And the requirements of different working conditions can be met by adjusting parameters such as the maximum speed, the maximum acceleration and the jerk.

The invention discloses a compressor blade grinding model optimization method, which is characterized in that after a compressor blade theoretical model is split according to regions, compared with an integral theoretical model, the compressor blade theoretical model is more beneficial to programming and optimization of machining programs of each region according to numerical control grinding steps. A compressor blade theoretical model has the phenomena of local curvature radius sudden change, distortion, intersection and folding of molded surfaces at corners and the like, so that a cutter projection cannot be attached; each curved surface part of the optimized and reconstructed model is in smooth transition, and the tool path is uniform and smooth. The reference cutter shaft vector is given, cutter shaft control can be conveniently carried out during numerical control grinding machining programming, cutter shaft swing in program control is more consistent, the connecting positions of all machining programs are smoother, and the consistency of numerical control grinding machining surfaces is improved.

The invention discloses a grinding wheel loading and unloading device of a numerical control grinding machine, which belongs to the technical field of numerical control grinding machines and comprises a frame, a hand wheel, a transmission shaft, a front side mounting plate, a bearing seat mounting plate, a lead screw, a guide rail and a grinding wheel mounting mechanism. A front side mounting plate is vertically arranged on the frame, the lead screw is rotatably arranged on the side wall of the front side mounting plate and is in threaded connection with the grinding wheel mounting mechanism, the guide rail is arranged beside the lead screw, and the grinding wheel mounting mechanism is connected with the guide rail; the first end of the transmission shaft is connected with the hand wheel, the second end of the transmission shaft is connected with the lead screw, the hand wheel drives the transmission shaft to rotate, and then the transmission shaft drives the lead screw to rotate so as to drive the grinding wheel mounting mechanism to ascend and descend. The liftable grinding wheel mounting mechanism can be driven to move through the frame, and the grinding wheel is driven to lift through the grinding wheel mounting mechanism, so that the difficulty of disassembling and assembling the grinding wheel by workers is greatly reduced, and the disassembling and assembling safety is ensured.

The composite horizontal numerical control grinding machine comprises a grinding machine table, a polishing mechanism and a middle grinding mechanism, two sliding rails are fixedly installed at the top of the grinding machine table, and a first movable sliding frame is slidably installed on the outer sides of one ends of the two sliding rails; a clamping mechanism is fixedly installed at the top end of the first movable sliding frame. According to the scheme, when smoke dust absorption operation is needed, the powerful fan is started at the moment, air flow firstly passes through the air guide fan blades and rotates along with the hollow rotating shaft to achieve primary pushing, the air flow flows through the hollow rotating shaft and the middle positions of the middle barrel and the outer barrel, and smoke dust at the grinding position is pushed to a lathe five-jaw chuck; the air flow is intercepted and filtered through the step-by-step air filter plates which are distributed step by step, and the filtered smoke dust is stacked on the opposite side of the hollow clamping frame, so that the maintenance box can be conveniently and regularly opened for cleaning, the emission of the smoke dust can be conveniently reduced, and the efficiency of blowing the smoke dust by the air flow and the auxiliary cooling can be improved.

The invention discloses a grinding wheel state recognition method and system based on a multi-strategy improved DBO algorithm. The method comprises the steps that multi-sensor data of a numerical control gear grinding machine tool are collected, preprocessed and marked with abrasion labels; performing efficient global optimization on hyper-parameters of the CNN-BiLSTM-Attention model by adopting a multi-strategy improved dung beetle optimization algorithm fusing Logistic chaotic mapping initialization, a spiral search strategy optimization breeding stage and a Levy flight strategy optimization stealing stage; and finally, precise prediction and evaluation of the abrasion state of the grinding wheel are achieved through the optimized model. The system comprises a multi-source data preprocessing module, an intelligent hyper-parameter optimization module, a depth prediction model training module and a state prediction and performance evaluation module. According to the method, the problems that a traditional hyper-parameter optimization method is low in efficiency and prone to falling into local optimum are effectively solved, and the precision, convergence speed and working condition adaptability of a state recognition model are remarkably improved.

The invention provides a method for repairing photovoltaic aluminum profile H13 die steel through self-fluxing alloy powder. The method comprises the steps that (1) the self-fluxing alloy powder is prepared; (2) the H13 die steel to be repaired is subjected to surface cleaning and decontamination, annealing treatment and preheating; (3) adjusting parameters of an optical fiber laser cladding system, and feeding the self-fluxing alloy powder into a laser acting area of the optical fiber laser cladding system; in the laser scanning process, a laser beam heats a local area into molten alloy liquid; (4) the alloy liquid is conveyed to the surface of the H13 die steel to be repaired, and a laser beam and the alloy liquid interact to form a firm cladding layer; protective gas is introduced to help the self-fluxing alloy powder flow; (5) gradient cooling is conducted after stress relief annealing is conducted on the cladding layer, and a high-precision numerical control grinding machine is used for finishing and polishing; and repairing is completed. When the self-fluxing alloy powder is used for repairing the H13 die steel, the repairing quality can be improved, the performance of the repaired H13 die steel can be remarkably improved, the production cost is reduced, and the service life of the H13 die steel is prolonged.

The invention discloses a numerical control intelligent grinding machine programming system and method, and relates to the technical field of numerical control grinding machines. According to the technical key points, based on a machining information input module, a workpiece contour rapid identification module, a workpiece size accurate measurement module, a grinding program automatic generation module, a coordinate system calibration module, a program simulation verification module, a machining state data acquisition module and a grinding parameter optimization module, the size of a grinding workpiece blank can be accurately identified; according to the method, an executable program code file is generated, the numerical control guide rail grinding machine executes cutter parameters, machining parameters, G codes, interpolation precision and the like in the code file to achieve automatic machining, the grinding parameters are optimized in real time in the grinding process, and the method is simple, efficient, easy to use and high in engineering practicability.

The utility model relates to a three-jaw flexible floating chuck and a small workpiece cylindrical grinding machine. An oil cylinder of the three-jaw flexible floating chuck is a multi-rod hollow oil cylinder, piston rods are distributed at equal intervals, sliding rails are connected with the front ends of the piston rods corresponding to the sliding rails and are in axial sliding connection with the profiling templates corresponding to the sliding rails, inclined grooves serving as sliding plate guide grooves are formed in the sliding rails, and L-shaped guide grooves are formed in the inner walls, located on the outer sides of the sliding plate guide grooves, of the profiling templates. The outer side face of each sliding plate is provided with a profiling guide structure extending into the corresponding L-shaped guide groove, the profiling guide structures on the outer side faces of the sliding plates are in guide fit with the corresponding L-shaped guide grooves of the sliding plates respectively, and the clamping seats are located on the radial inner sides of the mounting plates on the corresponding sliding plates respectively and connected with the mounting plates. Live centers and the floating chucks are arranged on a headstock and a tailstock of the small workpiece cylindrical grinding machine, and the live centers penetrate through the hollow parts of the floating chucks. The small-sized workpiece cylindrical grinding operation requirement of the numerical control grinding machine can be better met.

The invention belongs to the technical field of composite material machining, and particularly relates to a composite material single-abrasive-particle grinding device and method at different temperatures, and the device comprises a numerical control grinding machine, a single-abrasive-particle scratching device, a real-time force measuring device, a temperature processing device, a five-degree-of-freedom motion platform and a real-time temperature measuring device; a workpiece is accurately fixed to the grinding machine workbench through the integrated force measuring mechanism, three-direction dynamic force data in the grinding process are collected in real time, and the workpiece clamping stability and the measuring precision are effectively improved. Meanwhile, the device is provided with a self-adaptive temperature measurement system, the height and the inclination angle of the temperature measurement probe can be automatically adjusted according to the position information of the workpiece, rapid positioning and accurate focusing of a measurement focus are achieved, and the accuracy and the operation convenience of temperature field measurement are remarkably improved. By integrating a high-precision force measuring mechanism and a self-adaptive temperature measuring system, multi-parameter synchronous acquisition and analysis of grinding force and a temperature field are realized, and comprehensive data support is provided for deep research on a composite material grinding mechanism.

The numerical control surface grinding, chamfering and rounding all-in-one machine comprises a machining all-in-one machine, a machining bin is formed in the upper left corner of the front end of the machining all-in-one machine, a bin door is connected to the upper side of the front end of the machining all-in-one machine in a sliding mode, and the bin door can slide to the front end of the machining bin for shielding. Storage mechanisms are arranged on the left side and the right side of the inner wall of the lower end of the machining bin correspondingly, a plurality of chamfering and rounding grooves with different inner diameters are formed in the cylindrical outer wall of a chamfering and grinding wheel, and the edge of a silicon wafer can be chamfered and rounded at different angles; chamfering rounding grooves with different inner diameters can be adjusted to be clamped at the two ends of a silicon wafer to meet different machining requirements, stretching and retracting between a clamping telescopic rod and a telescopic sliding sleeve are controlled through a hydraulic control mechanism, the clamping position and tightness can be controlled according to the radius of the silicon wafer, the chamfering rounding device is suitable for machining of the silicon wafers with different radiuses, the machining range is widened, and the machining quality is improved.

The application discloses a numerical control grinding machine grinding wheel mounting and dismounting device, and belongs to the technical field of numerical control grinding machines.It comprises a frame, a hand wheel, a transmission shaft, a front side mounting plate, a bearing seat mounting plate, a lead screw, a guide rail and a grinding wheel mounting mechanism.The frame bottom is provided with a foot wheel assembly.The frame is vertically provided with the front side mounting plate.The lead screw is rotatably arranged on the side wall of the front side mounting plate and is threadedly connected with the grinding wheel mounting mechanism.The guide rail is arranged beside the lead screw and is connected with the grinding wheel mounting mechanism.The front side mounting plate top is provided with the bearing seat mounting plate.The first end of the transmission shaft is connected with the hand wheel.The second end of the transmission shaft is connected with the lead screw.The hand wheel drives the transmission shaft to rotate, and then drives the lead screw to rotate through the transmission shaft to drive the grinding wheel mounting mechanism to lift and lower.The application can move the lifting grinding wheel mounting mechanism through the frame, and lift and lower the grinding wheel through the grinding wheel mounting mechanism, greatly reducing the difficulty of workers in dismounting and mounting the grinding wheel and ensuring the safety of dismounting and mounting.

The cutter clamping and replacing structure for the numerical control grinding machine comprises a numerical control grinding machine shell, a movable shaft and a protection frame, the movable shaft is installed in the numerical control grinding machine shell through a bearing, the protection frame is installed on the outer wall of the movable shaft, and an arc-shaped clamping block is installed on the outer wall of the protection frame. An air pump is arranged in the arc-shaped clamping block, a connecting pipe is installed at the output end of the air pump, an arc-shaped pneumatic clamping block is installed on one side of the arc-shaped clamping block, one end of the connecting pipe is connected with one end of the arc-shaped pneumatic clamping block, and second grinding equipment is arranged on the inner wall of the numerical control grinding machine shell. According to the numerical control grinding machine tool body replacement device, the motor drives the movable shaft to rotate, so that the movable shaft drives the protection frame to rotate, and the protection frame drives the numerical control grinding machine tool body at the position of the arc-shaped pneumatic clamping block to replace the numerical control grinding machine tool body; and the numerical control grinding machine tool body at the motor is inserted into the second grinding equipment, so that quick replacement is facilitated.

The invention discloses an automatic ceramic grinding machine tool, and relates to the technical field of ceramic machining. A first motor is arranged in the first device shell, the rear end of the first motor is connected with the conveying mechanism, the right end of the first motor is connected with the limiting mechanism, and the first motor can drive the conveying mechanism or the limiting mechanism to operate; a driving mechanism is arranged in the second device shell, the right end of the driving mechanism is connected with a reciprocating lead screw body, a lead screw sleeve is arranged on the outer side of the reciprocating lead screw body, the top of the lead screw sleeve is fixedly connected with a control base, the top of the control base is connected with a numerical control grinding machine, and the right end of the driving mechanism is connected with a limiting mechanism. The driving mechanism drives the limiting mechanism and the reciprocating lead screw body to operate, after the limiting mechanism limits and fixes the ceramic workpiece, the driving mechanism can drive the control base and the numerical control grinding machine to freely adjust the position, and therefore the numerical control grinding machine can automatically cut the ceramic workpiece more conveniently.

The invention relates to the technical field of mechanical engineering, and discloses a special valve sealing element integrated machining process which comprises the following steps: S1, carrying out ultrasonic cleaning on a high-performance stainless steel or titanium alloy base material to remove oil stains and impurities on the surface; s2, performing one-time rough machining on the outer circle, the inner hole and the end face of the base material by using a five-axis numerical control lathe; s3, the multiple sealing elements are connected into a whole through TIG welding or high-strength epoxy resin bonding; s4, a numerical control grinding machine is adopted for conducting finish machining on the sealing face, and polishing liquid is matched with an automatic polishing machine to enable the surface roughness to meet the design requirement; an anti-corrosion coating is sprayed on the sealing surface according to use requirements; and S5, ultrapure water in a dust-free room environment is adopted for cleaning and drying, and then a pressure sealing test, a temperature resistance test and a corrosion resistance test are conducted. Through TIG welding, hot press molding and X-ray nondestructive testing, connection of multiple parts on the molecular level is achieved through the technology, and defects at joints are reduced.

The utility model relates to a supporting device for replacing a grinding wheel of a numerical control grinding machine. The supporting device comprises a base, a cutter replacing body arranged on the base, a first supporting piece for supporting the cutter body, an adjusting device for adjusting the first supporting piece to move up and down and a pressing plate for pressing the cutter body. A first sliding groove is formed in the tool changing body. The adjusting device is arranged in the first sliding groove; the first supporting piece slides in the first sliding groove; the acting end of the adjusting device abuts against the first supporting piece. The pressing plate is detachably connected to the first supporting piece. The problems that under the background that the numerical control grinding machine continuously needs to reduce the tool replacement time and reduce the labor intensity, the tool replacement convenience cannot meet the use requirement of the numerical control grinding machine, and meanwhile the vertical height position of a cutter needs to be adjusted after assembly are solved.

The invention discloses a numerical control grinding machine machining precision control method and system, a medium and a product and relates to the field of numerical control machining. According to the method, a digital geometric model of a workpiece to be machined is obtained, and a preset machining tool path is generated; curvature gradient analysis is carried out on the digital geometric model along the preset machining tool path, and a local mutation area is obtained; generating a prediction compensation value based on the curvature and the curvature change rate of each processing point on the preset processing tool path and the relative position of each processing point and the local sudden change area; in the machining process, the machining deviation between the actual machining contour of the current machining point and the digital geometric model is obtained, and feedback correction is generated based on the machining deviation; and performing weighted fusion on the feedback correction amount corresponding to the current processing point and the predicted compensation value to generate a composite correction instruction, generating final process parameters based on the composite correction instruction, and controlling the numerical control grinding machine to execute the final process parameters. According to the technical scheme, the workpiece machining precision is improved.

The utility model provides a grinding wheel set high-precision rapid replacement structure and a numerical control grinding machine applying the same. The grinding wheel set high-precision rapid replacement structure comprises a main shaft driving module and a main shaft. The grinding wheel library is mounted on one side of the axial direction of the main shaft and comprises a rotating module, and a plurality of grinding wheel sets are distributed on the rotating module in the circumferential direction; the main shaft is installed on the main shaft driving module to move in multiple directions, the grinding wheel library is installed on one axial side of the main shaft, the rotating module rotates to enable the needed grinding wheel set to coaxially face the main shaft and conduct translation butt joint assembly, replacement of the grinding wheel set is fast and efficient, and the machining capacity of a machine tool is guaranteed. The technical problems that in the prior art, a grinding wheel set in the state directly machines a workpiece and cannot move in multiple directions, and consequently the machining capacity is limited are solved.

The invention discloses a shaft cylindrical surface numerical control grinding machine and method for roll shaft machining, and relates to the technical field of numerical control grinding machines. The shaft cylindrical surface numerical control grinding machine for roll shaft machining comprises a grinding machine body, and the grinding machine body is provided with a clamping assembly used for fixing a roll shaft, an adjusting assembly used for detecting the grinding state and changing the position of the roll shaft and an auxiliary assembly used for keeping the precision of the detection result of the adjusting assembly. The sensor is slidably mounted in the collecting tank and is driven by external force to change the position so as to adjust the detection position; by monitoring and adjusting the contact state between the roller shaft and the grinding wheel in real time, the contact uniformity in the grinding process can be ensured, the problems of surface defects, size deviation and the like caused by uneven contact can be reduced, and therefore the machining quality and precision of workpieces are improved, and the machining efficiency is improved. And meanwhile, the refined control mechanism is also beneficial to keeping the correct geometrical shape of the grinding wheel, and the wear rate of the grinding wheel can be reduced.