1640results about "Gear-cutting machines" patented technology

The invention relates to the technical field of numerical control machining monitoring, in particular to a tooth deviation high-precision monitoring system in a tooth cutting machining process, which comprises an online measurement module, a dynamic compensation module, a deviation calculation module and a result output module which are in signal connection with a numerical control system of a tooth cutting machine tool, the online measurement module, the dynamic compensation module, the deviation calculation module and the result output module are integrated on the processing element; the processing element is used for obtaining workpiece design parameters and constructing a theoretical workpiece model, the online measurement module is used for collecting tooth surface point cloud data in real time in the machining process, the dynamic compensation module is used for correcting vibration errors and temperature errors of the point cloud data, and the deviation calculation module is used for quantifying tooth surface deviation values. And the result output module is used for generating an early warning signal and a dynamic correction instruction and executing system self-calibration. The device and a numerical control system form a closed loop of machining, monitoring, correction and remachining, and finally high-precision real-time monitoring and dynamic correction of tooth deviation are achieved.

The invention relates to the technical field of cycloid cyclone separation machining, in particular to a cycloid cyclone separation machining machine tool, system and method capable of synchronously machining multiple teeth. The cutter shafts are used for fixing and driving cutters, and the number of the cutter shafts is at least two; the workpiece driving piece is used for driving the workpiece shaft; the cutter shaft driving part is used for driving the cutter shaft; the cutter shaft regulation and control unit is used for regulating and controlling the position of the cutter shaft; when the machine tool runs, the cutter shaft driving part and the workpiece driving part run according to a preset rotating speed ratio, and the rotating speeds of the cutter shafts are the same. According to the cycloid rotational separation machining tool, multi-tooth synchronous machining can be achieved, and the cycloid rotational separation machining efficiency and precision can be further improved by combining the cycloid rotational separation machining tool with the cycloid rotational separation machining system and method.

The invention belongs to the technical field of gear precision machining, and particularly relates to a high-precision machining method for a complex curved surface gear, which comprises the following steps: acquiring a gear three-dimensional model and planning an initial machining path; tooth profile errors are predicted based on the path, and real-time dynamic compensation is conducted in the machining process; predicting a heat treatment deformation trend based on the compensated motion trail and the real-time data; adjusting heat treatment process parameters according to the predicted deformation trend; and detecting the final state of the gear after heat treatment, and updating the error prediction and compensation model according to a detection result. According to the method, real-time error compensation in the machining process is associated with predictive control of heat treatment deformation to form a closed loop, the problem that in the prior art, machining precision and structural stability after heat treatment are difficult to cooperatively guarantee is solved, and high-precision and high-reliability unified manufacturing of the complex curved surface gear is achieved.

The invention relates to the technical field of gear machining, and discloses adjustable precision gear turning equipment which comprises a device body, and the device body comprises a hob and a workbench; and the dynamic following type supporting unit comprises a rotating disc connected to the centering connecting column through a bearing, multiple sets of supporting rods are annularly arranged on the rotating disc, a supporting plate is installed at the ends, away from the rotating disc, of the supporting rods, and multiple sets of edge supporting assemblies are arranged on the supporting plate. By arranging the dynamic following type supporting unit, the supporting plate and the edge supporting assembly of the dynamic following type supporting unit can provide active upward supporting force for the bottom face of the gear to be machined, and during hobbing, the supporting force can actively offset downward cutting force generated by a hobbing cutter to form balance, so that bending deformation of a workpiece is directly prevented, and the service life of the gear to be machined is prolonged. Errors such as tooth shape concave and tooth direction inclination of the machined gear are avoided, and the machining precision and the surface quality of the gear are remarkably improved.

The invention relates to the technical field of planetary gear machining equipment, and discloses a planetary gear machining device with a bidirectional feeding mechanism, which mainly comprises a planetary gear machining machine tool machining table for bearing machining operation, and a conveying mechanism for conveying planetary gear blanks, the bidirectional feeding mechanism is used for realizing bidirectional precise feeding; the conveying mechanism is arranged between machining tables of the planetary gear machining machine tool and used for achieving long-distance conveying of blanks. Two-way operation of blank feeding and finished product discharging can be achieved through the feeding robot of the two-way feeding mechanism, manual intervention is not needed, the blanks on the conveying belt are accurately transferred to the machining table, the finished products are transferred to the designated position after machining is completed, and automation of the whole process is achieved; the mechanical arm of the feeding robot is flexible and controllable and can be matched with the rotating shaft to meet the grabbing and transferring requirements of different angles, the feeding path is accurate, the feeding time is greatly shortened, and the batch production efficiency is improved.

A value traceability method for an involute curve with a large base circle radius. The method comprises the following steps: step 1, determining a coordinate system for value traceability and value transfer parameters; step 2, adjusting the pose of an involute template (8); step 3, adjusting the position of the involute template (8); step 4, calibrating involute parameters; and step 5, eliminating coordinate system establishment errors to achieve calibration of a measurement instrument. The method fills the gap of value traceability methods for large-size gears with diameters greater than 500 mm, and can effectively identify the impact of coordinate system establishment errors on the accuracy of tooth profile measurement, and improve the applicability of a large-gear measurement instrument (9) in complex environments such as on-machine measurement. The method enables high-precision involute measurement, is simple and easy to implement, offers high measurement accuracy, facilitates transportation and installation adjustments, and has good market application prospects and promotion value.

The invention discloses a tooth grinding control system for gear machining, and relates to the technical field of gear grinding. An arc-shaped material collecting cover is installed at the top of a lifting control frame, a blank positioning mechanism used for clamping a gear blank and controlling the gear blank to rotate is arranged on the inner side of the arc-shaped material collecting cover, a tooth groove grinding piece matched with a tooth groove is arranged on one side of a cutting cutterhead on the inner side of the arc-shaped material collecting cover, and a first scrap suction pipe is arranged on the other side of the cutting cutterhead. A second scrap suction pipe is arranged on the side, away from the cutting cutterhead, of the tooth groove grinding piece, the end of the first scrap suction pipe abuts against and aligns to the tooth groove in the gear blank to achieve scrap suction, and the end of the second scrap suction pipe abuts against and aligns to the tooth groove in the gear blank to achieve scrap suction. The cutting cutterhead and the tooth groove grinding piece are integrally arranged on the inner side of the arc-shaped top cover, turning and grinding machining of the gear can be achieved in the process of controlling the reciprocating grinding mechanism to do horizontal reciprocating motion, and the gear machining efficiency and quality are improved through the gear in-situ machining mode.

The invention discloses a large-diameter end tooth inside and outside fixing tool which comprises a bottom integral rotating assembly and a cooling adjusting mechanism, an inward positioning mechanism is arranged above the middle of the bottom integral rotating assembly, and an outward positioning rotating mechanism assembled through bolts is arranged above the periphery of the bottom integral rotating assembly. And a clamping operation mechanism assembled by a bolt is arranged on the inner side of the middle part of the outward positioning rotating mechanism. According to the device, a cooling adjusting mechanism is mainly utilized, a pneumatic rotating insertion rod enables a hoisting base to be adjusted to a proper height position for opening and closing adjustment, so that a product is placed and taken down, and after output operation of a hydraulic telescopic frame, a bin sleeving plate is matched with an upper permeation pipe to be located at the optimal position of the product; the upper surface and the lower surface of a product can be cooled at the same time when the node cabins, the connecting pipes, the cooling cabins and the adjusting cabins are subjected to uninterrupted circulating cooling through the sleeve cabin plates and the permeation pipes which are symmetrically constructed, and structural damage to the product caused by overturning machining can be effectively avoided.

The invention provides a heat balance regulation and control method for a high-precision worm grinding wheel gear grinding machine for energy conservation and efficiency improvement. The method comprises the steps of establishing an electric-mechanical-thermal energy balance matrix equation of the worm grinding wheel gear grinding machine, carrying out a gear grinding experiment and carrying out data acquisition and processing, establishing a thermal energy balance equation, establishing a comprehensive energy efficiency model, establishing a comprehensive optimization model, solving the optimization model and the like. The heat balance regulation and control strategy of the worm grinding wheel gear grinding machine is obtained through the method, and a guidance basis is provided for energy conservation and efficiency improvement of the gear grinding machine. And a theoretical model and a guidance basis are provided for heat balance regulation and control of the energy-saving worm grinding wheel gear grinding machine. The device is high in universality and wide in applicability, and can be subsequently popularized and applied to other gear manufacturing machine tools.

The invention relates to the technical field of workpiece conveying, in particular to a gear train component machining, conveying and positioning system. Comprising a base and a lower conveying belt in transmission connection with the top of the base. The lower conveying belt is evenly and fixedly connected with the lower trays in the transmission direction. A limiting column is arranged on the upper surface of the lower tray; the center of the upper surface of the base is fixedly connected with a top base through a supporting plate. The lower surface of the top seat is in transmission connection with an upper conveying belt; the upper conveying belt is evenly and fixedly connected with the upper trays in the transmission direction. The lower surface of the upper tray is provided with upper supporting holes allowing the upper ends of the limiting columns to be inserted therein. The limiting columns are clamped into the upper supporting holes of the upper tray in the conveying process of the lower conveying belt, so that the upper ends and the lower ends of the limiting columns are positioned, and the limiting columns drive the stacked annular blanks to be more stable in the conveying process; and the situation that the limiting column is unstable due to impact force such as inertia is avoided.

The invention relates to the field of gear manufacturing and machining, in particular to a gear manufacturing lathe facilitating waste cleaning, compressing and recycling, which comprises a gear machining lathe, the gear machining lathe comprises a machine body, mounting seats are mounted on two sides of the middle of the top end of the machine body, and working frames are mounted on the tops of the mounting seats; air cylinders are fixedly connected to the tops of the working frames correspondingly, mounting plates are fixedly connected to the telescopic ends of the bottoms of the air cylinders correspondingly, the mounting plates are slidably connected to the front portions of the working frames correspondingly, double-head motors are mounted on the front portions of the mounting plates correspondingly, and gear hobs are fixedly connected to the peripheries of the driving ends, close to the sides, of the double-head motors correspondingly. When chippings are accumulated in the middle bin and reach a certain weight, the chippings can exceed the maximum bearing load of a spring in a rubber plate, so that the rubber plate can be'crushed ', the rubber plate is bent and deformed downwards, at the moment, the chippings can fall into the treatment bin to be subjected to centralized compression treatment, and therefore single-time batch compression can be achieved.

The invention belongs to the technical field of gear machining, and particularly relates to a gear machining gear grinding device which comprises a workbench. The top surface of the workbench is rotationally connected with a turntable; two pairs of uniformly arranged mounting seats are rotationally arranged on the top surface of the turntable; the tray is rotated on the top surface of the mounting seat; the top surface of the tray is rotationally connected with a double-end stud; the two ends of the double-end stud are in threaded connection with bearing columns correspondingly, and the bearing columns are slidably connected with the top face of the mounting base. The top face of the bearing column is fixedly connected with a clamping rod, and the diameter of the clamping rod is smaller than that of the bearing column. A supporting frame is slidably connected to the top face of the workbench, through cooperation of a rotary disc, a mounting base, a tray, a double-end stud, a bearing column, a clamping rod and a grinding disc, the grinding disc can grind two gears at a time, so that the grinding efficiency of the gears is improved, during gear grinding, a user can also feed another pair of gears, and the grinding efficiency of the gears is improved. And the gear grinding efficiency is further improved.

The invention relates to a method of pre-forming a grinding tool. In a method for preforming a grinding tool, a device, in particular a gear grinder (1), is provided for fine hard machining of a workpiece and for preforming a grinding tool, comprising: a workpiece spindle (2) for rotating the workpiece; a grinding spindle (3) which can be fed at least along a grinding spindle transverse feed axis X in order to rotate a grinding tool, in particular a grinding worm (4) or a grinding wheel; and a forming device (5) with a fixed first forming plate (6). A grinding tool blank, in particular a grinding worm blank, is arranged on a grinding spindle (3) of the device. The apparatus is placed in a shaped configuration. The grinding spindle (3) is fed until the grinding tool blank is operatively connected to the first forming plate (6). And finally, pre-forming the grinding tool blank.

The present invention provides a composite collaborative grinding method for a worm grinding wheel and a forming grinding wheel gear grinding process, comprising carrying out a composite gear grinding machine structure optimization design, specifically, simultaneously installing the worm grinding wheel and the forming grinding wheel on the grinding wheel main shaft; using a common roller dressing device according to the composite gear grinding machine main shaft structure, using the common roller dressing device to dress the composite shaft cross-sectional profile of the worm grinding wheel and the forming grinding wheel, and planning the dressing path according to the composite shaft cross-sectional profile to complete the dressing of the worm grinding wheel and the forming grinding wheel; using the worm grinding wheel to perform rough grinding on the gear, measuring the maximum grinding allowance and the minimum grinding allowance of the tooth surface after rough grinding, adjusting the automatic centering device according to the maximum grinding allowance and the minimum grinding allowance, and using the forming grinding wheel to perform fine grinding on the gear. This application enables the worm grinding wheel and the forming grinding wheel to work together in the same process, thereby simultaneously completing the rough machining and fine machining of the gear, improving production efficiency and overall machining accuracy, and reducing machining costs.

The high-precision edge grinding device for precision gear machining comprises a machining table, a conical groove is formed in the top of the machining table, a filtering plate is fixedly connected between the opposite side walls of the conical groove, an L-shaped plate is fixedly connected to the side wall of the machining table, and a cleaning mechanism used for cleaning scraps is arranged on the machining table. The cleaning mechanism comprises a cleaning assembly, the cleaning assembly comprises a water tank fixedly connected between the opposite side walls of the machining table, a water pump is installed on the side wall of the water tank, and the output end of the water pump is connected with an L-shaped pipe. According to the high-precision edge grinding device for precision gear machining, the problems that in the prior art, a soft brush is used for cleaning scraps, although the cleaning effect can be achieved, the soft brush possibly cannot penetrate into each corner and tooth groove of a gear, and especially for a complex or small gear, cleaning dead corners possibly exist are solved.

The invention provides a double-station gear grinding machining device and belongs to the technical field of gear machining.The double-station gear grinding machining device comprises a machining table, strip-shaped grinding teeth, a guide assembly, a first driving assembly, a second driving assembly and a rotary supporting assembly, a U-shaped support plate is fixedly arranged on the upper portion of the machining table, and the rotary supporting assembly is installed on the upper portion of the machining table; the strip-shaped grinding teeth are arranged at the bottom of the mounting plate and used for rotationally supporting a gear to be ground, the multiple sets of strip-shaped grinding teeth are fixedly arranged at the bottom of the mounting plate at intervals, the multiple strip-shaped grinding teeth can be meshed with the gear to be ground, and the first driving assembly and the second driving assembly are mounted on the U-shaped support plate. The first driving assembly is used for driving the mounting plate to intermittently move in the length direction of the machining table. Compared with the prior art, the full-automatic gear grinding operation of the gear to be ground can be achieved, and the gear grinding device has the advantages of being high in gear grinding efficiency and good in organic gear grinding effect.

The invention relates to the technical field of worm manufacturing, and discloses a worm grinding wheel gear grinding machine capable of improving machining precision and a machining process thereof.The worm grinding wheel gear grinding machine comprises a numerical control machine tool, positioning rotating assemblies are arranged on the two opposite side walls of an inner cavity of the numerical control machine tool, and diamond repairing discs are arranged on the positioning rotating assemblies; an adjusting rotating assembly is further arranged on one side wall of the numerical control machine tool inner cavity. According to the grinding wheel repairing device, when a first diamond limiting block, a second diamond limiting block and a third diamond limiting block move to a certain position, a detection rod can move upwards until the detection is detected by a monitoring sensor, and therefore a grinding wheel is moved to a diamond repairing disc to be repaired by adjusting a rotating assembly; therefore, the grinding wheel can be detected at the first time when the two sides and the surface of the grinding wheel are worn to a certain degree, repair is carried out, the worm continues to be frosted after repair is completed, and the phenomenon that the worm cannot be detected at the first time due to the influence of chippings, cutting fluid and the like when being frosted is avoided.

The invention belongs to the technical field of bevel gear machining, and particularly provides a bevel gear machining positioning mechanism which comprises an operation table, a connecting frame is arranged on one side of the operation table, an extrusion type inner shaft positioning assembly is rotationally arranged in the center of the operation table, and the extrusion type inner shaft positioning assembly is sleeved with a gear blank; a follow-up type pressing assembly is rotationally arranged on the connecting frame and movably arranged above the extrusion type inner shaft positioning assembly, and magnetic control type chip collecting mechanisms are evenly distributed on the periphery of the operation table. According to the positioning mechanism for bevel gear machining, positioning can be achieved through an inner ring of a bevel gear blank, one-key clamping can be achieved, the lever principle is utilized, the conical structure of the conical block is combined, the inner ring of the gear blank is extruded and positioned through the expansion block while the gear blank is pressed by the pressing plate in a pressing and extruding mode, and the technical effect of one-key clamping is achieved; and automatic machining of bevel gear tooth grooves is facilitated.

The invention relates to the technical field of gear machining, and particularly discloses a gear machining turning machine tool which comprises a base, a clamp box and an adjusting box which can be adjusted in a sliding mode are installed on the top face of the base through sliding rails, and a clamping assembly used for clamping steel billets is arranged in the clamp box. By integrating the high-precision sliding rail and the synchronous adjusting mechanism, the machine tool can rapidly and cooperatively calibrate the eccentric distance and the non-circular phase of the main shaft, the time needed by traditional manual adjustment is remarkably shortened, excellent positioning precision is achieved, vibration and drifting in the machining process are effectively restrained through the dynamic locking device, and the machining precision is improved. Coaxiality errors of non-circular gear hole site machining are greatly reduced, accidental errors caused by manual adjustment are eliminated as much as possible, and a phase reference with the consistent height is provided for follow-up tooth profile machining.

The invention discloses a gear circulating chamfering device, and particularly relates to the technical field of universal grinding, which comprises a grinding machine sleeve, a concave air bag, a controller and a synchronous constant-force grinding chamfering assembly, the synchronous constant-force grinding and chamfering assembly comprises a plurality of push plates, an elastic strip, a side pressing plate, two chamfering grinding heads, a plurality of L-shaped frames and an arc-shaped plate. By means of the synchronous constant-force grinding and chamfering assembly, synchronous constant-force extrusion grinding and chamfering are carried out on multiple tooth groove corner positions of the outer wall of a gear and the outer walls of multiple chamfering grinding heads while discharging is carried out, the complexity and time consumption caused by one-by-one tooth groove operation in a traditional mode are reduced, and the grinding efficiency of the gear is remarkably improved through intelligent machining; and the advantages of high efficiency and high precision of grinding and chamfering are considered, so that the problems that synchronous constant-force grinding and chamfering are difficult to carry out on multiple tooth grooves of the gear at the same time in the discharging link in a traditional mode, and the dual requirements of intelligent manufacturing for high efficiency and high precision are difficult to meet are solved.

The utility model relates to a special tool for a gear hobbing machine to machine a spline at the end of a square shaft, and belongs to the technical field of spline machining at the end of the square shaft. According to the technical scheme, a positioning seat is arranged on the upper surface of a base, a horizontally-arranged fixing square groove is formed in the top of the positioning seat, the width of the fixing square groove is matched with the width of the front face of a square shaft to be machined, and the center of the fixing square groove and the center of a first tip are located on the same vertical line; a positioning ruler is arranged above the positioning seat and located between the square shaft and the clamping arm, a positioning square groove is formed in one side of the positioning ruler, and the width of the positioning square groove is matched with the width of the back face of the square shaft to be machined. The position of the square shaft is fixed through the tool clamp, it is ensured that the front face of the square shaft is aligned with a machine tool of a gear hobbing machine, it is ensured that starting points of machining are the same each time, and the tooth crest center lines of circular shaft splines at the two ends of the square shaft are aligned with the center line of the front face of the square shaft or the tooth root center lines of the two side faces of the square shaft are aligned with the center lines of the circular shafts at the two ends of the square shaft. The requirement that the square shaft end machining spline datum plane does not deviate is met.

The utility model discloses a quick positioning and clamping device for slotting machining of internal teeth of disc type workpieces, which relates to the technical field of tooth machining and comprises an expansion sleeve, a positioning seat and a pull rod, a plurality of partition grooves are formed in the outer side of the expansion sleeve in the circumferential direction of the expansion sleeve, and cavities are formed in the upper end and the lower end of the expansion sleeve. The diameter of a cavity in the upper end of the expansion sleeve is matched with the diameter of the lower end of a to-be-machined part. A cavity matched with the expansion sleeve is formed in the upper portion of the positioning seat, and the expansion sleeve is arranged in the cavity in a sliding mode in the axial direction of the expansion sleeve. The pull rod is used for pulling the expansion sleeve to slide downwards and enabling the expansion sleeve to generate elastic deformation to clamp a part to be machined. According to the rapid positioning and clamping device for slotting machining of the inner teeth of the disc type workpiece, the expansion sleeve is pulled by the pull rod to generate elastic deformation to clamp and fix a part to be machined, so that rapid clamping of the part to be machined is achieved, and positioning is accurate and stable.

The invention relates to the field of tool clamps, and particularly discloses a tool clamp for gear machining, which comprises a base, a vertical plate perpendicular to the base is fixed on the upper end face of the base, three circumferentially distributed expansion blocks are arranged on one side of the vertical plate, and the three expansion blocks are abutted to one another to form a complete cylinder. Guide blocks slidably connected into the vertical plates are arranged on the sides, close to the vertical plates, of the expansion blocks, inserting rods are fixed into the expansion blocks, the ends, close to the guide blocks, of the inserting rods are fixed to the guide blocks, threaded rods are connected into the guide blocks in a threaded mode, the three expansion blocks simultaneously rotate along with the three threaded rods to be away from or close to one another, and the three expansion blocks are sleeved with gears. The three guide blocks are far away from each other along with simultaneous rotation of the three screw rods, and then the three expansion blocks are driven to be far away from each other and abut against the inner ring of the gear, so that the gear is fixed to the three expansion blocks, deviation of the gear during fixing is reduced, positioning accuracy during gear machining is guaranteed, and machining precision is improved.

The invention belongs to the technical field of mechanical engineering and intelligent manufacturing, and discloses a high-precision gear hobbing quality online detection and control system and method. The system comprises a gear hobbing regulation and control module used for driving a hobbing cutter and a workpiece to perform repeated cutting; the multi-light-source visual acquisition module is used for adjusting the position of a multi-light-source visual acquisition probe and acquiring a multi-modal image in a precise gear machining process in real time; the image processing module is used for processing the multi-modal image to generate a multi-scale feature vector; the quality prediction module is used for processing the multi-scale feature vector to generate a geometric precision prediction value and a surface roughness prediction value; and the self-adaptive control module is used for dynamically adjusting the machining parameters of the hob motion control system and the workpiece rotation control system according to the geometric precision predicted value and the surface roughness predicted value, and triggering rejection processing when the geometric precision predicted value exceeds a preset tolerance range or the surface roughness predicted value exceeds a preset threshold value.

The static pressure knife rest of the gear shaping machine comprises an eccentric disc, a swing rod is hinged to the eccentric disc, and the other end of the swing rod is hinged to the top end of a knife shaft through a ball pull rod and a ball head. The cutter shaft penetrates through the cutter rest body; a cutter is mounted at the lower end of the cutter shaft; a worm gear and a worm are installed at the upper end of the tool rest body, and the worm gear is pressed through a large flange plate to be axially fixed. The cutter shaft penetrates through the worm gear and an inner hole of the cutter shaft sleeve at the same time. Due to the fact that the outer circle profile face of the four-tooth tooth-shaped tooth crest of the formed hydrostatic guide rail is wide, enough space can be provided for designing a radial four-cavity centripetal hydrostatic bearing, and therefore the upper end of a cutter shaft not only has centripetal clamping static pressure formed by static pressure cavities of involute tooth faces of the hydrostatic spline guide rail but also has static pressure clamping force of the tooth crest. The rigidity of the upper end of the cutter shaft is enhanced through superposition of the two clamping forces.

The invention discloses a numerical control forming gear ring inner tooth grinding machine and a using method thereof.The numerical control forming gear ring inner tooth grinding machine comprises a lathe bed assembly, a numerical control rotary table assembly, a grinding wheel spindle assembly and a workpiece clamping assembly, the lathe bed assembly adopts a mineral casting base, the damping coefficient is larger than 10%, and a linear guide rail is installed on the lathe bed assembly; s3, grinding feeding and indexing; S4, grinding stage control; S5, track correction; S6, grinding wheel wear compensation; through a mineral casting base of the lathe bed assembly, an angle encoder of the numerical control rotary table assembly and a CBN material formed grinding wheel of the grinding wheel spindle assembly, the effect of improving the machining precision is achieved; through the steps S2, S4 and S5, the effect of optimizing the machining quality is achieved, the tooth profile error and the surface roughness are effectively controlled, and the machining quality of the inner gear ring is improved; and through S1, S3 and S6, the effect of improving the machining stability and reliability is achieved, and the machining stability and reliability of equipment are improved.

The shaft large end face floating positioning gear grinding clamp comprises a chuck base, a lower center mechanism used for positioning a workpiece is installed at the bottom of the chuck base, an upper center mechanism capable of being matched with the lower center mechanism to press or loosen the workpiece after axially moving is installed above the chuck base, and a clamping structure for clamping the workpiece is installed in the chuck base. A floating type workpiece lower end face supporting mechanism is installed on the periphery of the upper end of the chuck base and comprises a plurality of supporting columns, the supporting columns are evenly distributed on the periphery of the chuck base in a surrounding mode, and floating media are arranged between the chuck base and the bottoms of the supporting columns. The method is simple and convenient to operate; the labor intensity is reduced; the rigidity of the tool is enhanced; the gear grinding efficiency of the product is improved by more than 30% compared with the original end face positioning; the positioning end face of the workpiece is not machined, one lathe and one operator are reduced, the occupied area is small, and the total cost is reduced by more than 20%.

The residual tooth removing device for worm machining comprises an operation table, an operation support, a first rotating seat, a second rotating seat, a scrap collecting box and an operation baffle, a residual tooth removing assembly is arranged on the operation support and used for removing residual teeth on the surface of a worm shaft and the two sides of teeth of the worm shaft, and a scrap removing assembly is arranged on the operation table and used for removing scraps on the surface of the worm shaft and the two sides of the teeth of the worm shaft. The scrap removing assembly is used for removing residual tooth scraps removed from the worm, and an erasing assembly is arranged on the operation table and used for assisting in removing the residual tooth scraps left on the scrap removing assembly. When the sliding part slides on the reciprocating lead screw in a reciprocating mode, the first rack drives the rotating part to integrally rotate, when the first missing gear rotates, the second rack slides, the reciprocating part is driven to drive the scrap removing part to slide in a reciprocating mode, and when scrap removing cotton slides up and down, residual tooth scraps on a continuously rotating workpiece can be effectively removed.

The invention discloses a spiral bevel gear grinding tooth surface error multi-stage correction method which comprises the following steps: acquiring a cutter equation to obtain a cutter high-order equation; calculating a five-axis linkage equation to obtain a five-axis linkage high-order equation; obtaining a tooth surface measurement error value; an L-M algorithm is utilized, a tooth surface measurement error value and an adjustment coefficient initial value are input, whether the tooth surface measurement error value is larger than a preset value or not is judged, if yes, machining initial position correction is executed firstly, then small-error tooth surface error correction is executed, and if not, small-error tooth surface error correction is executed; the machining initial position correction comprises the following steps: taking a machining initial position error as an adjustment coefficient, carrying out L-M reverse adjustment calculation, and correcting a five-axis linkage high-order equation; the small-error tooth surface error correction comprises the following steps: screening high-order coefficients participating in reverse adjustment in a five-axis linkage high-order equation and a tool high-order equation, carrying out L-M reverse adjustment calculation, and correcting to obtain a final five-axis linkage high-order equation and a final tool high-order equation. The method is high in correction capability and high in efficiency.

The invention relates to the technical field of gear machining and forming, and discloses an automatic precision calibration type gear cutting and forming device which comprises a table body, a frame plate is installed on the table body, a module guide rail is installed on the frame plate, a sliding seat is installed on the module guide rail in a sliding mode, and the module guide rail is provided with a sliding block. A lifting device is installed on the sliding seat, a cutting device body is installed on the lifting device, when a machining worker clamps a to-be-machined gear on the fixing seat, the double-shaft motor is started to drive the gear to rotate through the fixing seat, meanwhile, the module guide rail is started, the module guide rail is driven to rotate, and the cutting device body is driven to rotate through the module guide rail. The sliding seat can drive the cutting device body to transversely move along the module guide rail through the lifter, the transverse cutting depth of the cutting device body can be conveniently adjusted, then the lifter can control the cutting device body to conduct longitudinal adjustment by starting the lifter, and the longitudinal cutting depth of the cutting device body can be conveniently adjusted. And automatic calibration of the cutting precision of gear machining is facilitated.