369 results about "Gear shaping" patented technology

The invention discloses a bevel gear forming grinding temperature prediction method and system and a storage medium, and the method comprises the steps: analyzing a bevel gear heat treatment process, and building a multi-field coupling finite element simulation model of a gear heat treatment process including carburizing, quenching and tempering; and calculating non-uniform tooth surface deformation caused by thermal stress, structural stress and inconsistent surface hardening layer depth. Taking a gear model after heat treatment as an initial model of a gear forming and grinding process, taking a grinding heat flux density three-dimensional distribution result as a thermal load, and combining with a gear forming and grinding geometric contact relationship to establish a helical gear forming and grinding continuous finite element simulation model considering the influence of initial tooth surface non-uniform deformation; and calculating to obtain the temperature distribution of the ground workpiece. According to the method, the influence of the heat treatment process on gear forming grinding can be comprehensively considered, the tooth surface temperature distribution of forming grinding machining is accurately predicted, and the method is crucial for analyzing the influence of the heat treatment process on grinding quality and optimizing process parameters.

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 relates to the technical field of gear machining, and discloses gear machining equipment of a cutting assembly of a coal mining machine and a machining method.The gear machining equipment of the cutting assembly of the coal mining machine comprises a base, a lifting plate, a gear shaping mechanism, a positioning mechanism, a sweeping mechanism and a blowing mechanism; and the gear shaping mechanism comprises a gear shaping cutter, a rotary drum, a first servo motor and a second servo motor, the rotary drum is rotationally installed in the lifting plate, the second servo motor is fixedly installed at the top of the rotary drum, a driving shaft is fixedly installed on an output shaft of the second servo motor, and the gear shaping cutter is fixedly installed on the outer side of the driving shaft. The gear shaping machine is reasonable in design, the cutting edges used for gear shaping machining can be continuously switched through the sweeping mechanism and the blowing mechanism when gear shaping machining is carried out on a gear, machining scraps on a gear shaping cutter and a gear blank are automatically cleaned, and the situation that the machining quality is affected by the scraps is avoided.

The utility model belongs to the technical field of gear shaping machining, and relates to a hook-shaped pressing plate efficient gear shaping clamp which comprises a clamp body for clamping a thin-wall gear ring, a plurality of guide columns are arranged in the clamp body in the circumferential direction, and the upper ends of the guide columns extend out of the clamp body and are fixedly connected with hook-shaped pressing plates for pressing the thin-wall gear ring. The lower end of the guide column is connected with the pull rod and is driven by the pull rod to slide in the axial direction, a spiral groove is formed in the guide column, a positioning pin matched with the spiral groove is arranged on the clamp body, and when the guide column slides in the axial direction, the spiral groove and the positioning pin are matched to drive the guide column to generate angular transposition at the same time. The efficient gear shaping clamp with the hook-shaped pressing plate has the advantages of being simple in structure, low in manufacturing cost, efficient in clamping and high in positioning accuracy.

The invention relates to the field of parallel-tooth gears, in particular to parallel-tooth gear machining equipment and a technology thereof.A rotating base is rotationally arranged in a vertical numerical control gear shaping machine tool body, a workpiece clamp is installed at the top of the rotating base, and an ejector pin assembly is vertically and movably arranged at the top of the workpiece clamp; and a machining cutter is mounted on one side of the workpiece clamp through a machining main shaft. According to the machining tool designed according to the tool design principle, machining of some non-standard parallel teeth can be achieved, the outer ring can drive the movable base to move so as to achieve adjustment of the elastic force of the extrusion spring, and therefore a user only needs to assemble a workpiece on the movable bottom plate and press the workpiece downwards, and then the workpiece can be installed on the workpiece clamp; and in addition, the workpiece can be disassembled only by pressing the movable ring downwards and lifting the outer ring upwards, the workpiece positioning mode is simple and convenient, the positioning speed is high, and a user can use the workpiece conveniently.

The utility model relates to the field of chip removal of gear shaping machines, and discloses a chip removal device of a gear shaping machine, which comprises a case, a gear shaping cutter is arranged at the top end of the case, the case is rotatably connected with a clamp table corresponding to the gear shaping cutter, the case is further connected with a spray pipe corresponding to the gear shaping cutter, and the bottom end of the case is obliquely arranged and provided with a discharge port. The bottom end of the filter box is connected with a liquid box; the case is rotatably connected with a first rotating shaft; the first rotating shaft is linked with the clamp table and is fixedly connected with a crank; the filter box is detachably connected with a filter plate; the end, away from the push plate, of the connecting rod is hinged to the end, away from the first rotating shaft. The scrap collecting device has the effects of improving the working efficiency, reducing the cost and efficiently collecting scraps.

The invention provides a gear tooth surface precision detection method based on a deep learning network, a medium and equipment, and mainly solves the problem of insufficient model generalization ability caused by scarcity of real labeled data and domain difference in an existing method. The method comprises the following steps: collecting a plane workpiece image marked with a roughness level as a source domain data set, and pre-training an intelligent detection model; based on a gear shaping machining meshing motion relation, establishing a tooth surface morphology geometric simulation model, and generating virtual gear tooth surface images of different roughness grades; extracting a real gear tooth surface area image as a target domain sample; a domain adaptation method based on clustering optimal transmission is adopted, the feature distribution difference between a source domain and a target domain is calculated and minimized, model parameters are optimized, and self-adaptive migration of a feature space from a plane image to a gear tooth surface is achieved. According to the method, virtual sample generation and a domain adaptation technology are combined, so that the data acquisition cost is effectively reduced, and the detection precision and the model generalization ability under the small sample condition are remarkably improved.

The present application belongs to the technical field of gear machining, and discloses a forming milling machining method of spherical gear. The method uses a disc-shaped milling cutter to machine the spherical gear, and the steps are as follows: firstly, the parameters of the spherical gear are given, the tooth surface equation of the spherical gear is derived, and the tooth surface normal vector is calculated; secondly, the forming milling machining coordinate system of the spherical gear is established, and the homogeneous transformation matrix between the coordinate systems is derived, and then the contact line equation between the spherical gear and the disc-shaped milling cutter is derived; then, the cross-sectional profile of the disc-shaped milling cutter is calculated, and then the rotary surface of the disc-shaped milling cutter is obtained; finally, the spherical gear is formed and milled by using the calculated disc-shaped milling cutter, and after machining an annular gear slot, the disc-shaped milling cutter is rotated by a certain angle to continue machining the next gear slot. The forming milling machining method of the spherical gear proposed by the present application can realize the machining of the spherical gear without relying on special gear machining machine tools, and the disc-shaped milling cutter used has a simple structure and is easy to manufacture.

The utility model belongs to the technical field of horizontal gear shaping machines, and particularly relates to a clamping device for a horizontal gear shaping machine, which comprises a fixed seat and a fixed part, an adjusting mechanism is arranged at the top end and the bottom end of the fixed seat, and a clamping mechanism is arranged at the top end of the fixed seat. According to the clamping device for the horizontal gear shaping machine, by arranging the adjusting mechanism, a fixed workpiece can be rotated in the direction, so that the workpiece can be rapidly machined, the machining speed of the device is increased, and the problems that in the background technology, the direction of the fixed workpiece is not prone to being adjusted, and the machining efficiency is high are solved. The problem that the machining speed of workpieces is prone to being influenced to a certain degree due to the fact that the clamping mechanism is arranged, the workpieces of different sizes can be clamped and fixed, the clamping efficiency is improved, a certain buffering function is achieved, the clamping stability is improved, and the machining production quality of the workpieces is improved.

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 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 invention discloses an involute helical gear forming grinding force prediction method, which comprises the following steps: firstly, based on a helical gear forming grinding space motion relationship, establishing a helical tooth surface model comprising an involute surface and a tooth root transition curved surface, and constructing a geometric contact model of a grinding wheel and a gear; then, tooth surface deformation data obtained after heat treatment are obtained through a three-coordinate measuring machine, coordinate mapping is carried out, and the grinding depth and contact parameters are corrected; on the basis, a grinding force integral model considering the heat treatment influence is established by combining a plane grinding mechanism, and integral calculation is carried out on tangential and normal grinding force of a tooth surface involute section, a transition arc section and a tooth bottom section; finally, actual measurement data are obtained through a grinding experiment, and model parameter calibration is completed. According to the method, dynamic and accurate prediction of tangential and normal grinding force in the bevel gear forming and grinding process can be achieved, and a reliable basis is provided for mechanical behavior analysis and process optimization in the gear machining process.

A gear shaper suitable for ultra-large tooth width machining comprises a lathe bed, a stand column, a cutter shaft and a workbench, a servo motor is adopted to drive a ball screw to serve as a main movement system, and a cutter rest sliding plate is driven to achieve accurate up-down reciprocating motion; the cutter shaft is rigidly connected with the sliding plate through an end face bearing and supported by hydrostatic bearings at the two ends, and the supporting distance L is larger than or equal to the tooth width * 2.5. The tool rest transmission system is integrated on the sliding plate and drives the tool shaft to rotate through a worm and gear pair. The radial feeding system drives a sliding seat to move through a servo motor and a ball screw; a workbench independent cutter relieving mechanism is innovatively adopted, and a servo motor drives a ball screw to achieve precise cutter relieving motion. According to the design, a traditional hydraulic system is abandoned, through a modularized multi-axis linkage structure, the mechanical layout is remarkably simplified, the machining precision and efficiency are improved, and the technical blank of large-modulus and ultra-long-tooth-width gear machining equipment is filled up.

The invention discloses a worm grinding wheel point finishing method for simplifying track point input. The worm grinding wheel point finishing method comprises the following steps that firstly, slotting cutter design parameters consistent with the normal section of a worm grinding wheel are deduced; 2, establishing a slotting cutter tooth surface equation, and solving a contact point of a point finishing wheel and a worm grinding wheel to obtain a point finishing track point; 3, establishing a theoretical motion relation between the point finishing wheel and the worm grinding wheel, and deducing a theoretical transformation matrix; 4, based on a machine tool kinematic chain, the actual motion relation between the point finishing wheel and the worm grinding wheel is established, and an actual transformation matrix is deduced; 5, the theoretical transformation matrix and the actual transformation matrix are combined, and a linkage relational expression of all shafts of the machine tool is solved; and 6, the machine tool is guided to execute finishing operation based on the linkage relational expression, the point finishing track points are only input once during first-time finishing, the problem that track control points need to be input for multiple times during multiple times of point finishing is solved, the operation efficiency of multiple times of point finishing can be remarkably improved, and the sand contour precision after finishing can be ensured.

The invention discloses a numerical control gear shaper for machining a high-precision hardened-tooth-face gear, and belongs to the technical field of numerical control machine tools. Through the combination of the ball screw, the linear guide rail and the penetrating transverse shaft, micron-order positioning and stable linear motion of the tool sliding table in the horizontal direction are achieved, the machine is compatible with gears of various sizes, the idle stroke is reduced, and the machining efficiency and the machine tool universality are improved; a quick-change clamping jaw, a transverse pull rod, a triangular cutting edge impact seat and a movable chip retaining ring are of an integrated structure, the cutting edge of the impact seat is always aligned with the edge of a gear, the movable chip retaining ring synchronously forms a closed protective cover, scrap iron is prevented from splashing, edge machining is faster, more stable and cleaner, and after a large gear bracket-annular tooth groove die hole is replaced, a large-size tooth groove can be formed at a time; and the thin-wall disc gear can be accurately positioned by the central positioning column, so that deformation is prevented. The whole machine has multiple purposes, and the universality and the flexibility are greatly improved.

The invention discloses a gear forming grinding contact area temperature field calculation method based on a single-abrasive-particle cutting heat production mechanism, and the method comprises the steps: firstly, calculating the undeformed cutting thickness according to the geometric contact relation between abrasive particles and a tooth surface, and judging that the abrasive particles are in a scraping, ploughing or cutting stage; then, the heat flux density generated by each abrasive particle is calculated in stages, the proportion of heat transmitted into the workpiece is determined according to a dynamic heat distribution mechanism, and then the heat flux density distribution of a contact area is obtained through fitting; and finally, on the basis of a moving heat source model and a point heat source superposition method, a temperature field of the gear forming grinding contact area is constructed and solved. According to the method, the limitation that a traditional model adopts fixed heat flow distribution is overcome, accurate prediction of the grinding temperature field is achieved from the physical mechanism level, and a key theoretical basis is provided for effectively controlling tooth surface heat damage and improving gear machining quality.

The invention discloses a self-adaptive machining method of a gear shaping machine. The method comprises the following steps that display items of a current large stroke and a current small stroke and input items of a target large stroke and a target small stroke are added in a numerical control machining program of the gear shaping machine; during remodeling machining, an input mode is judged according to the states of the target large-stroke set value and the target small-stroke set value, and the target large-stroke set value and the target small-stroke set value are input into a numerical control machining program of the gear shaping machine; and after the numerical control system of the gear shaping machine executes the operation, the numerical control system of the gear shaping machine automatically adjusts the large stroke and the small stroke of the gear shaping machine to the set values of the current target large stroke and the target small stroke, and then machining is conducted. After a worker inputs necessary machining information through a program interface before machining, a numerical control system can automatically calculate large and small stroke values suitable for current machining and control a mechanical part to move to a set position to start machining, the machining stroke is automatically adjusted to adapt to the current machining condition, and the production efficiency is improved.

The utility model provides a pallet fork device and heavy-load equipment, and relates to the technical field of intelligent warehousing. The pallet fork device is arranged on the heavy-load equipment and comprises a gear shaping assembly, a driving part, a power assembly and a plurality of abutting assemblies, the gear shaping assembly comprises upper gear shaping and lower gear shaping, and the upper gear shaping is arranged above the lower gear shaping and used for containing goods; the multiple sets of abutting assemblies are arranged between the upper insertion teeth and the lower insertion teeth at intervals, and lifting faces inclined in the direction away from the lower insertion teeth are arranged in the abutting assemblies; the driving piece is arranged on the lower gear shaper and is in transmission connection with the upper gear shaper, and the driving piece can drive the upper gear shaper to lift along the lifting surface; the power assembly is arranged on the gear shaping assembly and used for driving the gear shaping assembly to move and conveying the goods into the vehicle body. According to the pallet fork device and the heavy-load equipment, cargo transfer can be completed without the help of other structures, and the carrying efficiency is high.

The application discloses a bidirectional gear shaping method, wherein the gear shaping cutter and the gear shaping part rotate in the same direction to perform gear shaping, and then the gear shaping cutter and the gear shaping part change the rotating direction to perform gear shaping. The application has the advantages of high machining precision and long service life of the gear shaping cutter.

The utility model relates to the technical field of gear shaping machines, and discloses a fixing clamp of a gear shaping machine, which comprises fixing frames, a rotating shaft is fixedly connected to the adjacent sides of the inner walls of the two fixing frames, positioning holes are formed in the outer wall of the rotating shaft at equal intervals, and air cylinders are fixedly connected to the left side and the right side of the inner wall of a clamp plate. The output ends of the two air cylinders are fixedly connected with a pressing clamp, the top of the outer wall of the fixing frame is fixedly connected with a clamping mechanism, and the clamping mechanism is used for fixing a clamping clamp. The fixing frame is connected through the rotating shaft and is convenient to adjust and fix, the clamp plate can slide in the fixing frame and is suitable for different wheelchair supports, the fixing block is fixed to the top of the clamp plate and supports a wheelchair, the air cylinders are connected to the two sides of the clamp plate, and the air cylinders are connected with the pressing clamp, so that the wheelchair is safe and stable to use, and the adjusting capacity and clamping efficiency of the fixing clamp are improved. Positioning and clamping operation is optimized, consumed time is short, and the production takt is accelerated.

The utility model discloses an automatic retracting reciprocating slot and gear shaping power tool apron, which relates to the technical field of metal processing, and comprises a machine shell, a machine cover, a driven gear, a stand column, a moving seat, a ring groove, a bearing, a main shaft, a base, a driving shaft and a driving gear, the machine cover is fixed on the upper part of the machine shell, the driven gear is rotatably connected inside the machine shell, and the stand column is fixed on the main shaft. The stand column is fixed to the edge of the driven gear, the moving seat is slidably connected to the interior of the machine cover through the guiding device, the annular groove is formed in the lower portion of the moving seat, the stand column is located in the annular groove, the driving device drives the driving shaft and the driving gear to rotate, and the driven gear is stressed to drive the stand column to move in the annular groove. Automatic tool retracting and reciprocating slot gear shaping functions of the movable seat and the main shaft are achieved, manual intervention is reduced, machining efficiency is improved, labor intensity is reduced, and the gear ratio of the driving gear to the driven gear is designed to be 1: 3, so that power transmission is more stable and accurate.

The utility model discloses a gear shaper workbench inclination angle adjusting device which comprises a supporting plate, a base is arranged at the upper end of the supporting plate, a plurality of supporting rods are symmetrically arranged at the inner bottom of the base, grooves are formed in the side walls of the supporting rods, a rotating box body is arranged in the middle of the base, a tooth groove is formed in the outer side of the rotating box body, and the tooth groove is formed in the outer side of the rotating box body. The rotating box body is arranged in an arc shape, a connecting shaft is rotationally connected to the inner wall of the base, a driving gear is fixedly connected to the outer portion of the connecting shaft, a plurality of transverse rods are symmetrically arranged on the inner wall of the base, a supporting frame is slidably connected between every two adjacent transverse rods, and positioning gears are arranged on the side walls of the two supporting frames; pull rods are arranged on the side walls of the two supporting frames, and one end of each pull rod penetrates through the side wall of the base and extends to the outside. By means of the structure, the positioning gear is matched with the tooth groove, the positioning rod is matched with the positioning hole, the rotating box body can be kept stable after the angle is adjusted, and loosening is avoided.

A method for machining a gear shaper cutter shaft sleeve and the cutter shaft sleeve itself include the following steps: aligning the cutter shaft sleeve blank with its outer diameter and end face; turning the dimensions of the left and right end faces, the inner hole at the right end, and the tapered hole at the left end of the blank, leaving machining allowance; aligning the outer diameter and end face of the cutter shaft sleeve blank; turning the dimensions of the left and right end faces, the inner hole at the right end, and the tapered hole at the left end of the blank, leaving finishing allowance; clamping the outer diameter of the right end of the cutter shaft sleeve on a precision machine tool; aligning the outer diameter and end face of the cutter shaft sleeve blank; precision grinding the tapered hole at the left end of the cutter shaft sleeve blank; installing and aligning a soft grinding sleeve on a grinding machine; then inserting the left end of the mandrel into the inner positioning hole of the soft grinding sleeve; then inserting the cutter shaft sleeve into the right end of the mandrel, completing the assembly of the cutter shaft sleeve before precision grinding; and finally precision grinding the inner hole at the right end of the cutter shaft sleeve using a grinding machine. This invention effectively reduces the reference conversion error caused by multiple clamping by using a high-precision mandrel as a unified process reference and optimizing the processing sequence.

The invention relates to a method for gear shaping a periodic structure, in particular a toothing on a workpiece, in which method the workpiece, continuously rotating about its axis of rotation, is brought into material-removing machining engagement with a toothed shaping tool which rotates about its axis of rotation in rolling contact with the workpiece rotation. After a working stroke, the shaping tool is lifted off from the workpiece in a lifting direction and, after a subsequent return stroke, the shaping tool in the lifted state is returned to the workpiece again for the next working stroke. In the return stroke, a deflection movement of the shaping tool away from the incoming flank of the workpiece and transversely to the lifting direction is superimposed on the rolling contact.

The utility model provides a clamping tool for inner helical tooth gear shaping processing, which relates to the technical field of inner helical tooth gear shaping processing, and comprises a workbench, a clamping mechanism and a cleaning mechanism, a pair of linear guide rails is arranged on one side of the top of the workbench, a conveying plate is arranged between the pair of linear guide rails in a sliding manner, the clamping mechanism comprises a plurality of clamping rods, and the cleaning mechanism is arranged on the clamping rods. A fixing plate is installed at the center of the top of the conveying plate, a plurality of clamping rods are arranged in the inserting blocks, clamping blocks are arranged at one ends of the clamping rods, the cleaning mechanism comprises a pair of water pipes, a supporting rod is installed on the side, away from the linear guide rail, of the top of the workbench, and the two sides of the top of the water tank are connected with the pair of water pipes through first pumps correspondingly; and one ends of the pair of water pipes penetrate through the mounting block and are provided with spray heads. The gear clamping device is simple and reasonable in structure, novel in design and easy, convenient and fast to operate, effectively clamps and fixes a workpiece gear, facilitates better cutting machining of the interior of the gear, improves production accuracy and has high practical value.

The utility model discloses a workbench applied to a gear shaper, which comprises a panel, a collecting hopper is communicated below the panel, a collecting box is arranged below the collecting hopper, a pair of adjusting supports for clamping a workpiece to be machined is mounted in the panel, the adjusting supports are vertically distributed in a staggered manner, and the collecting box is arranged below the collecting hopper. A double-thread screw is rotationally installed in the adjusting support, a pair of sliding seats are symmetrically connected to the double-thread screw in a threaded mode, the upper sections of the sliding seats extend out of the adjusting support and are provided with clamping plates, and a motor is installed at the end, extending out of the adjusting support, of the double-thread screw through a connecting rod. According to the utility model, the adjusting bracket is erected in the panel to clamp and fix the workpiece to be machined, so that sweeps generated during machining can directly slide into the collecting hopper and finally are uniformly poured into the collecting box, the accumulation of the sweeps on the working table is effectively avoided, the sweeps are more convenient to clean, and the working efficiency is improved. And the problem that follow-up machining is affected due to the fact that sweeps are tightly attached to the to-be-machined face can be solved.

The invention relates to a thin-wall gear ring machining process, which belongs to the technical field of gear ring machining, and comprises the following steps: S1, preparing materials; s2, turning for the first time; s3, carrying out primary marking; step S4, flaw detection; s5, hardening and tempering; S6, secondary turning; step S7, turning for the third time; step S8, carrying out secondary marking; step S9, flat grinding; step S10, copper plating; step S11, gear shaping; during turning, a part is subjected to large-allowance cutting, a certain allowance is reserved, internal stress is released through tempering treatment, small-allowance cutting is performed, and before small-allowance cutting, a clamping reference is subjected to flat grinding, the part is adsorbed through a magnetic disk, the magnetic disk is clamped through a lathe clamping jaw, deformation of the part is avoided, turning stress is controlled, and during grinding, the machining precision of the part is improved. The body clamp adopts a pig iron ring flat plate, a shoveling and scraping process is carried out, the stability of the tool is guaranteed, the clamping stress meets the product precision requirement, and therefore it is guaranteed that the deformation amount is controllable in the thin-wall gear ring machining process.

The invention belongs to the technical field of gas sensors of micro-electro-mechanical systems (MEMS), and particularly relates to a micro hot plate and a manufacturing method thereof.The micro hot plate comprises a substrate, an insulating layer is arranged on the top face of the substrate, a plurality of hollow-out structures are formed in the substrate in the circumferential direction at equal intervals, a cantilever beam is formed between every two adjacent hollow-out structures, the hollow-out structures penetrate through the insulating layer, and the cantilever beam penetrates through the insulating layer. A heating electrode, a gear shaping electrode and a temperature measuring electrode are integrated on the top surface of the insulating layer, the heating electrode, the gear shaping electrode and the temperature measuring electrode are all located on the outer sides of the multiple hollow structures, and pins of the heating electrode, the gear shaping electrode and the temperature measuring electrode pass through the multiple cantilever beams and are located on the inner sides of the multiple hollow structures; the corners of the hollow structure are arranged to be round corners. The micro hot plate is high in response speed, low in power consumption, stable in structure, long in service life and high in tolerance.

The utility model relates to the technical field of gear machining tools, and discloses a gear shaping tool for a deep-hole thin-wall inner gear ring, which comprises a cylindrical gear shaping jacket and a plurality of groups of axial pressing components, the gear shaping jacket is arranged on the periphery of the inner gear ring in a sleeving mode, the lower end face of the gear shaping jacket is pressed on the flange face of the inner gear ring, a longitudinal adjusting opening is formed in the gear shaping jacket, mounting blocks protruding out of the gear shaping jacket are arranged at the two ends of the adjusting opening, and connecting structures for fixing the gear shaping jacket and the inner gear ring are arranged on the mounting blocks. A plurality of rows of through threaded holes are formed in the outer wall of the gear shaping jacket, radial supporting screws are installed in the threaded holes, and the end faces of the radial supporting screws make contact with the periphery of the inner gear ring; the axial pressing assembly comprises an adjusting supporting leg and a pressing plate on the adjusting supporting leg, the other end of the pressing plate is pressed on the upper end face of the gear shaping clamping sleeve, a through hole is formed in the pressing plate, a threaded rod is installed in the through hole, and the threaded rod is in threaded connection with a nut used for pressing the pressing plate. In practical application, the device effectively prevents the workpiece from deforming, and improves the machining precision and quality.

A method for manufacturing a wave gear device comprises: a hot forming step of hot forming an alloy steel composed of nickel, copper, molybdenum, and silicon into a first molded product having a silk hat-type housing shape at a first temperature of 950 to 1300°C; a normalizing step of isolating the first molded product at the first temperature for a predetermined time and, after the isolating time has elapsed, slowly cooling the first molded product to a second temperature of 750 to 900°C; an austempering step of isolating the first molded product at the second temperature and then cooling it to a third temperature of 250 to 400°C to form residual austenite in the first molded product; a heat treatment step of isolating the first molded product that has undergone the austempering step at the third temperature and then cooling it at room temperature to stabilize the microstructure of the first molded product; and a gear forming step of turning and toothing the first molded product that has undergone the heat treatment step to form a second molded product having a soluble external gear shape. The method comprises a step and a trip step of applying impact to the surface of the second molded product to induce a processing-induced transformation in some of the austenite remaining in the second molded product, thereby transforming the surface of the second molded product into martensite.