520 results about "Gear grinding" patented technology

The invention provides a grinding control method, device and equipment for a transmission gear and a storage medium, and the method comprises the steps that a three-dimensional digital model of the transmission gear to be ground is constructed according to multi-dimensional physical parameters and material parameters collected by the transmission gear to be ground; a multi-stage grinding process parameter set is generated according to the three-dimensional digital model and a process parameter database; determining grinding track data of the transmission gear to be ground according to the multi-stage grinding process parameter set and the three-dimensional digital model; performing dynamic simulation on the grinding track data, and optimizing the grinding track data based on simulation feedback; and grinding the transmission gear to be ground according to the optimized grinding track data. A personalized three-dimensional digital model is constructed by collecting multi-dimensional physical and material parameters, accurate generation and optimal control of a grinding track are achieved based on the model and a multi-stage process parameter set, and the machining precision of the gear grinding process is effectively improved.

The invention belongs to the technical field of gear polishing, and particularly relates to a corner burr polishing and removing device for gear machining, which comprises a workbench, one side of the upper end face of the workbench is fixedly connected with a supporting plate, one side of the upper end of the supporting plate is fixedly connected with a third groove plate, and the inner side of the third groove plate is inserted and slidably connected with a telescopic plate. Two second sliding rods are slidably connected to one end of the telescopic plate, adjusting blocks are fixedly connected to the lower ends of the second sliding rods, a polishing disc is rotatably arranged on one side of the lower end face of each adjusting block, and an assembling hole covering mechanism for preventing chippings from splashing to the hole wall of the gear assembling hole is further arranged on the workbench. By means of the assembling hole covering mechanism, in the whole grinding and polishing process, the gear assembling hole is covered with the adjusting cloth, so that splashing chippings can be blocked by the adjusting cloth and cannot be splashed into the gear assembling hole, and cleanliness of the hole wall of the gear assembling hole is guaranteed.

The utility model discloses a deburring device for gear machining, and relates to the technical field of gear machining, in particular to a deburring device for gear machining, which comprises a machining base and a gear, a positioning device for clamping the gear is arranged on the machining base, and two adjusting seats are movably connected to the top of the inner side of the machining base. And a self-adaptive driving block is movably connected to the interior of the adjusting seat, an elastic self-adaptive spring is fixed to one side of the driving block, a splash-proof baffle is fixed to the bottom of the driving block, and a polishing knife for polishing the gear is assembled in the baffle. According to the deburring device for gear machining, a gear is arranged between the two grinding knives, then the two grinding knives can rotate to grind tooth edges on the two sides of the gear at the same time, the gear grinding efficiency is improved, and under the action of the elastic force of a spring, the grinding knives can be pushed to grind the tooth edges on the two sides of the gear when the gear rotates; and the self-adaptive contact piece is in self-adaptive contact with the tooth edge of the gear.

The utility model provides a numerical control gear shaping punch head gear grinding machine which comprises a control system, a lifting module, a pitching adjusting assembly, an indexing chuck, a grinding assembly and a transverse moving module, the pitching adjusting assembly is connected with the lifting module, the indexing chuck is arranged on the pitching adjusting assembly, the grinding assembly is connected with the transverse moving module, and the transverse moving module is arranged on the indexing chuck. The transverse moving module drives the grinding assembly to do reciprocating motion towards or away from the indexing chuck, and the lifting module, the indexing chuck, the grinding assembly and the transverse moving module are electrically connected with the control system. According to the numerical control gear shaping punch gear grinding machine, under the condition that certain machining precision is guaranteed, the equipment manufacturing cost is saved; the equipment is convenient to operate, automatic machining can be achieved only by installing a workpiece and selecting corresponding machining parameters in a control system, and one person can control multiple pieces of equipment.

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 provides a gear inner hole grinding device and a grinding method thereof, and belongs to the technical field of gear inner hole grinding. Comprising a grinding mechanism and a gear, and the grinding mechanism comprises a mounting frame and a double-rod air cylinder; a clamping assembly used for fixing the gear and polishing one side face of the gear is installed between the two lugs of the installation frame. According to the gear grinding device, by arranging the clamping assembly, gears with different diameters can be clamped in a matched mode conveniently, the tedious clamping process is avoided, operation is easy and convenient, meanwhile, the gear grinding device can be matched with one side walls of the gears with different sizes for grinding, and certain operation procedures of operators are reduced; according to the gear grinding device, inner holes of gears with different inner hole diameters can be matched for grinding, the other side wall of each gear can be conveniently ground, the gears and the grinding device can be accurately and rapidly cooled, a grinding head is prevented from being replaced when the inner holes of the gears with the different inner hole diameters are ground, certain operation procedures of operators are reduced, and meanwhile waste of cooling liquid is avoided.

Method for setting up a gear grinding process, comprising the process steps: determining axis movements and / or a geometry of a grinding tool (17) for one grinding stroke or for several grinding strokes by means of a first quality control loop (Q1) by repeating the steps grinding (18), measuring (20) and correcting (28) for a pre-final target geometry (12) of a gear (4) which has a stock allowance (14) to a final target geometry (8) of the gear (4), wherein the steps grinding (18), measuring (20) and correcting (28) of the first quality control loop (Q1) are repeated on one or more components (19) until a gear ground on the respective component (19) or components (19) has achieved a predetermined accuracy with respect to the pre-final target geometry (12);Determining axis movements and / or a geometry of a grinding tool (17) for one grinding stroke or for several grinding strokes by means of a second quality control loop (Q2) by repeating the steps grinding (18), measuring (20) and correcting (28) for the final target geometry (12) of the gear (4), wherein the steps grinding (18), measuring (20) and correcting (28) of the second quality control loop (Q2) are repeated on one component (19) or on several components (19) until a gear ground on the respective component (19) or components (19) has achieved a predetermined accuracy with respect to the final target geometry (8).

The invention relates to the technical field of gear machining equipment, and particularly discloses a gear grinding machine for gear machining, which comprises a base, a controller, a bearing structure, a driving structure, a first gear grinding structure and a second gear grinding structure, the controller is fixedly arranged on the upper wall of the base and close to the front end, and the bearing structure is fixedly arranged on the upper wall of the base and located in the middle; the gear grinding device is suitable for machining gears with different shaft holes and different sizes through a replaceable shaft column, a to-be-ground gear is limited through a bearing structure, and a corresponding replaceable driving wheel is arranged on a driving structure and can be matched with the to-be-ground gear to select a grinding mode; the driving wheel drives the to-be-ground gear to rotate, the first gear grinding structure rotates slowly to adjust the gear teeth, the side walls of the gear teeth are ground in sequence, relative adjustment can be conducted according to different tooth numbers or the inclination angles of the side walls of the gear teeth, and meanwhile the distance can be adjusted according to the width of the gear teeth.

The invention discloses an automobile gear grinding device and relates to the technical field of gear grinding, the automobile gear grinding device comprises a grinding workbench, a grinding machine and a rotating table, the grinding machine comprises a base fixedly connected to the upper surface of the grinding workbench and a grinding disc cutter sliding on the base of the grinding machine, and the rotating table comprises a fixed table fixedly connected to the upper surface of the grinding workbench. The driving machine is fixed to the side, away from the grinding machine, of the rotating table fixing table, and an adjusting assembly is arranged on the rotating table. By adjusting the clamping stroke of the clamping blocks, it can be guaranteed that the three clamping blocks can effectively abut against and clamp a workpiece after synchronous movement, the problem that the workpiece cannot be effectively contacted and clamped due to the fact that a single clamping block is excessively abraded is solved, and the clamping effect on the workpiece is further guaranteed; and the problem that the depths of ground tooth grooves are different when the workpiece is ground into a gear due to looseness when the workpiece is clamped is solved, and the precision of grinding the workpiece into the gear is improved.

The invention discloses a spiral bevel gear grinding force measuring method and system, electronic equipment and a medium, and the method comprises the steps: obtaining the measuring force in the X, Y and Z directions through a fixed dynamometer, and determining the installation angle of the fixed dynamometer according to the obtained measuring force in the X, Y and Z directions; based on the installation angle, determining a target coordinate transformation matrix between the fixed dynamometer and the gear grinding machine tool cutter shaft; calculating an axial stress component and a radial stress component of the cutter shaft of the gear grinding machine tool according to the measured measuring forces in the X, Y and Z directions and the target coordinate transformation matrix; tool setting between the spiral bevel gear workpiece and the grinding wheel tool is completed based on the axial stress component and the radial stress component; the target relative position of the grinding wheel tool and the gear grinding machine tool workpiece shaft is obtained; and according to the target relative position, the cutting force component of the grinding force and the normal force component of the grinding force are calculated. The precision of grinding force measurement of the spiral bevel gear can be improved.

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 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.

A cycloidal gear machining method based on a worm grinding wheel gear grinding machine. A cycloidal gear is machined in a worm grinding wheel grinding manner, achieving continuous and stable gear grinding machining. A dresser (4) and a workpiece rotary table (5) are integrated on a large rotary table (2), so that a machine tool can quickly switch between two working states, i.e., gear grinding and grinding wheel dressing, improving the working efficiency of the worm grinding wheel gear grinding machine. A workpiece pressing frame (12) is used for fixing a workpiece or disassembling the workpiece, improving the efficiency of clamping and disassembling the workpiece. A three-degree-of-freedom diagonal gear grinding scheme and a machining process grading method are combined, improving an axial traverse method of a grinding wheel: using a grinding wheel tooth surface used in a finish machining stage to perform rough machining on a gear machined next time, improving the utilization rate of the grinding wheel, and reducing the dressing frequency of the grinding wheel. A machining error is adjusted by adjusting machining parameters of the machine tool, achieving the adjustability of the error.

The utility model discloses a gear grinding waste collecting device, and relates to the technical field of gear grinding devices, the gear grinding waste collecting device comprises a main body assembly, the main body assembly comprises a working table, a connecting frame is fixed at the top end of the working table, a cleaning assembly is arranged on one side of the connecting frame, and a cooling assembly is arranged on one side of the cleaning assembly. The servo motor is started to drive the output shaft to rotate, the belt drives the connecting shaft and the rotating disc to rotate synchronously, the rotating disc drives the moving block to move transversely in a reciprocating mode through the circular shaft, the large-pitch threaded lead screw moves under rotation of the gear, the scraper blade cleans waste materials on the material receiving plate, and the waste materials fall into the collecting box. Through centralized treatment of the ground waste, the situation that workers need to consume too long time to clean the waste and waste the time of the workers is avoided, meanwhile, the waste can be prevented from being discarded at will through collection and treatment of the waste, potential hazards of the waste to the environment are reduced, and ecological balance is protected.

The utility model belongs to the technical field of grinding, and particularly relates to a gear grinding device which comprises a box body, a grinding wheel and a driving device. The grinding assembly is connected with the box body and is used for grinding the gear; the grinding assembly comprises a driving piece installed on the top of the box body through a motor frame. The transmission assembly is fixedly connected to the output end of the driving part; the end, away from the driving piece, of the transmission assembly is fixedly connected with a rotating shaft. A notch for the rotating shaft to move is formed in the top of the box body; the rotating shaft penetrates through a sliding block and is fixedly connected with a cam, and the sliding block is connected with the box body through a spring; one side of the cam abuts against a grinding machine, and the grinding machine is slidably connected with the sliding block. According to the gear polishing device, the auxiliary assembly is arranged, the convenience of gear polishing is further improved, in the embodiment, the polishing assembly and the auxiliary assembly are combined, the gear can be polished in all directions, the polishing effect is good, use is convenient, and the gear polishing device is more suitable for being used and popularized.

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 utility model relates to the technical field of grinding devices, and discloses a grinding device for gearbox gear machining, which comprises a grinding assembly and a positioning assembly, the grinding assembly comprises a collecting tank, a fixing frame is mounted at the right end in the collecting tank, a mounting frame is fixedly connected to the top of the fixing frame, and a grinding device is mounted at the top in the mounting frame through an electric push rod; the positioning assembly comprises a supporting plate and a supporting rod, the bottom of the supporting plate is fixedly connected with a sliding block slidably connected to the outer side of the supporting rod in a sleeving mode, the top of the supporting plate is provided with a rotary air cylinder, the output end of the rotary air cylinder is provided with a fixing column, a positioning piece is installed above the fixing column, a pressing plate is arranged above the positioning piece, the top of the fixing column is fixedly connected with a threaded rod, and a nut is installed on the threaded rod. According to the utility model, different gears can be fixed by replacing different positioning pieces, so that the application range is wide; and through cooperation of a pressing plate, a threaded rod, a nut and a positioning piece, the gear can be pressed and fixed, the stability of the gear during grinding is improved, and the gear grinding device is safer.

The invention discloses a machining method for an input shaft of an electric drive assembly generator. The machining method comprises the following steps of first finish turning, second finish turning, gear hobbing, spline broaching, heat treatment, spline hard broaching, outer circle and end face grinding and gear grinding. In the step of hard pulling of the spline, the internal spline is subjected to hard pulling after being heated, the large diameter, the small diameter and the tooth side of the internal spline are subjected to hard pulling, and the precision of the internal spline subjected to heat treatment is corrected. In the step of grinding the outer circle and the end face, an internal spline of the input shaft of the generator is expanded, the end face and a center hole are positioned, and the outer circle and the end face of the input shaft of the generator are ground. In the gear grinding step, the internal spline of the input shaft of the generator is expanded, the end face is positioned, and gear grinding is conducted on the gear. Thermal deformation of the internal spline is corrected after heat treatment, then the internal spline is adopted as a standard for machining of subsequent procedures, the standard is unified, and it is guaranteed that the internal spline of the generator input shaft and the external spline of the generator rotor are well matched, torque is transmitted, a bearing operates stably, and operation stability of an electric drive assembly is guaranteed.

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 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 provides an asymmetric gear worm grinding wheel gear grinding heat equivalent simulation analysis and process parameter optimization method. The method comprises the steps of establishing a transient equivalent simulation analysis model of asymmetric gear worm grinding wheel gear grinding, determining the grinding heat influence degree of different process parameters on tooth surfaces on the two sides, obtaining an optimal process parameter solution set and the like. According to the method, the difference of grinding heat of tooth surfaces on the two sides in the asymmetric worm grinding wheel tooth grinding machining process is considered, technological parameter optimization is carried out, and a theoretical model and a guidance basis are provided for guaranteeing the asymmetric gear tooth grinding machining performance. The method is high in universality and wide in applicability, and can be subsequently popularized and applied to the manufacturing process of other asymmetric gears or other types of gears.

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 utility model belongs to the technical field of grinding mechanisms, and discloses a precision gear grinding mechanism, comprising a mounting frame, a top surface of the mounting frame is provided with a positioning assembly for clamping and fixing the gear, and the positioning assembly is movably connected to the mounting frame, a top surface of the mounting frame is provided with a grinding assembly for grinding the gear, and the grinding assembly is movably connected to the mounting frame, a top surface of the mounting frame is provided with a supporting frame, a top surface of the supporting frame is provided with a pushing groove, a driving assembly for driving the grinding assembly is provided in the pushing groove, the grinding assembly can be rotatably adjusted on the top surface of the mounting frame, when different gears need to be ground, the grinding assembly will rotate to a corresponding position, and the driving assembly and the grinding assembly are separate, so that the driving assembly can be quickly connected to or separated from the grinding assembly, thereby improving the grinding efficiency of the device for the gears, and the positioning assembly can quickly adjust and fix gears of different sizes, thereby improving the grinding quality of the gears.

The invention discloses a machining method for a sun gear of a planetary reducer. The machining method comprises the steps of gear blank machining, spline broaching, gear hobbing, tooth profile chamfering, carburizing and quenching, external grinding, hole turning, flat grinding, gear grinding and detection. An outer circle recognition groove is machined in the outer circle of the gear blank and close to the near end face A; gear broaching is conducted with the near end face A as the positioning reference; a spline taper mandrel penetrates into the spline hole, the outer circle of the sun gear top is ground through gear side positioning, and the near end face A is ground in a leaning mode; the outer circle of the ground tooth crest is clamped, the near end face A is leveled, a spline inner hole is turned, a far end face B far away from the outer circle recognition groove is turned, and then the near end face A is flatly ground with the turned far end face B as the reference; during gear grinding, the far end face B and the spline inner hole are used as positioning references; during detection, the detection direction is consistent with the positioning direction of the grinding teeth, and the far end face B faces downwards. By the adoption of the technical scheme, it is guaranteed that the gear precision of the sun gear reaches the sixth level, and the use requirements of customers are met.

The present invention discloses a multi-objective thermal-fluid topological design optimization method for the cooling element of a precision gear grinding machine tool, comprising the following steps: Step 1: Define the design domain: Expand the cooling element into a plane, define a two-dimensional design domain representing the cooling element's geometric structure, and discretize it using the finite element method; Step 2: Numerical modeling: Model the cooling element as a porous medium; Under the conditions of laminar incompressible flow, the fluid dynamics are governed by the dimensionless forms of the continuity equation and the momentum equation; The fluid-solid coupled heat transfer model is governed by the dimensionless energy conservation equation; Step 3: Construct an objective function: The optimization objective is defined as a weighted function of heat transfer and fluid dissipated power, and a fluid-solid heat transfer topological optimization model is constructed; Step 4: Solve the objective function; Step 5: Restore the shape and structure of the cooling element. The present invention also discloses a precision gear grinding machine tool and a cooling element.

The present invention provides a powder metallurgy gear grinding device and a grinding process, and relates to the technical field of gear grinding. The powder metallurgy gear grinding device comprises: a workbench, a mobile mechanical arm, a grinding disc, a dust collecting box, a guide groove, and a second motor. The mobile mechanical arm is arranged on the top of the workbench, the second motor is fixedly mounted on the mobile mechanical arm, the grinding disc is rotatably mounted on the output shaft of the second motor, one side and the top of the workbench are provided with openings, the guide groove is fixedly mounted on the top inner wall of the workbench, and a fixed seat is fixedly mounted on the top of the workbench. The powder metallurgy gear grinding device provided by the present invention has the advantages of being easy to use, being able to place multiple gears at the exact center of the shaft and at the ideal grinding position at the same time, being convenient for the grinding device to grind multiple gears at the same time, being able to automatically complete the shifting operation after the gears are added, so that the gears can quickly and accurately reach the designated position for subsequent processing such as grinding.

The invention belongs to the technical field of gear machining, and provides a gear tooth surface finish machining device. A movable rod; a grinding rod; a driving mechanism; a correction mechanism; and an intermittent rotating mechanism. The grinding rod is transversely close to the tooth groove, the grinding rod can be effectively prevented from touching the surface of the gear body, and the gear body is prevented from being damaged; the correcting cylinder is sleeved on the periphery of the grinding rod through the driving mechanism, the correcting cylinder can correct the bent grinding rod, so that the grinding rod is slowly changed into a straight state from a bent state, and an arc-shaped fillet can be arranged at the top of an inner hole of the correcting cylinder, so that even if the grinding rod is bent and the correcting cylinder moves upwards, the correcting cylinder can be slowly sleeved on the periphery of the grinding rod; according to the gear grinding device, the grinding rod is preliminarily corrected, bending of the grinding rod is effectively avoided, it is guaranteed that the grinding rod can normally conduct precise grinding on the tooth surface, the tooth surfaces in all tooth grooves in a gear body can be normally ground, and therefore the tooth surfaces can meet the machining requirement after being ground.

The invention relates to the technical field of alloy smelting, heat treatment and machining, and discloses a machining process of a stainless steel gear for a small-tooth-difference planet gear transmission mechanism, which comprises the following steps: S1, refining a stainless steel ingot, carrying out desulfurization and dephosphorization treatment, and then pouring into a stainless steel rod; s2, roughly turning the stainless steel rod and dividing the stainless steel rod into gear blank sections; s3, the gear blank section is subjected to heat treatment, after solution treatment and heat preservation of the gear blank section are completed, the gear blank section is rapidly cooled to 32 DEG C or below in a water quenching or oil quenching or air cooling mode, then precipitation hardening aging treatment is conducted on the gear blank section, and then the gear blank section is air-cooled to the room temperature; s4, finish turning of the gear blank section; s5, gear manufacturing is conducted, specifically, the gear blank section is machined into a gear through a gear shaping or gear hobbing machining method; s6, low-temperature annealing is conducted, and then the gear is air-cooled to the room temperature; s7, accurate grinding is conducted, specifically, the surface except the tooth part is accurately ground to the design size; and S8, gear grinding is conducted, specifically, the tooth profile of the gear is ground to the finished product size.

The utility model discloses engine gear polishing equipment, and relates to the technical field of gear machining. Comprising a base and a front cover shell, a U-shaped frame is fixedly connected to the top of the base, rectangular grooves are symmetrically formed in the U-shaped frame, sliding grooves are formed in the positions, located on the inner sides of the rectangular grooves, of the inner wall of the base, sliding plates are slidably connected to the inner walls of the sliding grooves, and rotating bases are rotatably connected to the inner walls of the sliding plates; an electric push rod is fixedly connected to the inner wall of the rotating seat, a triangular frame is fixedly connected to the end, away from the rotating seat, of the electric push rod, and a plurality of suction cups and a plurality of pressing heads are fixedly connected to the inner wall of the triangular frame. The triangular frame is pushed towards the inner side through the electric push rod, the gear is clamped by the pressing head on the triangular frame, and during clamping, the gear can be firmly sucked by the suction cup on the triangular frame, so that the gear clamping stability of the triangular frame is enhanced, the gear is not prone to shaking during grinding, the probability of errors caused by grinding is reduced, and the gear grinding precision is improved.