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167 results about "Gear shaping" patented technology

Gear shaping is a machining process for creating teeth on a gear using a cutter. Gear shaping is a convenient and versatile method of gear cutting. It involves continuous, same-plane rotational cutting of gear.

Gear tooth surface precision detection method based on deep learning network, medium and equipment

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.
Owner:XIAMEN UNIV

A method for forming a ball gear by milling

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.
Owner:DALIAN UNIV OF TECH

Static pressure knife rest of gear shaping machine

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.
Owner:YICHANG CHANGJIANG MASCH TECH CO LTD

Method for predicting forming grinding force of involute helical gear

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.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Worm grinding wheel point finishing method for simplifying track point input

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.
Owner:CHONGQING UNIV

Numerical control gear shaper for machining high-precision hardened face gear

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.
Owner:YANTAI XINDEL GEAR CO LTD

Gear forming grinding contact area temperature field calculation method based on single-abrasive-particle cutting heat production mechanism

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.
Owner:CHONGQING UNIV

Self-adaptive machining method of gear shaping machine

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.
Owner:YICHANG CHANGJIANG MASCH TECH CO LTD

A bidirectional gear shaping method

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.
Owner:ZHONGNAN TRANSMISSION MACHINERY FACTORY CHANGSHAAVIATION IND

Fixing clamp of gear shaping machine

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.
Owner:WEICUI PRECISION MACHINERY (KUNSHAN) CO LTD

Inclination angle adjusting device for workbench of gear shaping machine

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.
Owner:CHONGQING QIDAYUAN MASCH CO LTD

Method for processing a cutter arbor sleeve of a gear shaping machine and cutter arbor sleeve of a gear shaping machine

ActiveCN121514827BMachineGear (shape)
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.
Owner:NINGXIA TIANDI BENNIU IND GRP

Method for gear shaping a periodic structure, in particular a toothing, and shaping machine designed therefor

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.
Owner:GLEASON PFAUTER MASCHFAB

Clamping tool for gear shaping machining of inner helical teeth

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.
Owner:HANGZHOU MAIAN TRANSMISSION TECH CO LTD

Gear shaping tool for deep-hole thin-wall inner gear ring

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.
Owner:CHONGQING GEARBOX

Strain Wave Gear Manufacturing Method

ActiveKR102991231B1Gear wheelGear (shape)
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.
Owner:SBBTECH

Gear shaping clamp for machining spline on eccentric shaft part

The utility model discloses a gear shaping clamp for processing a spline on an eccentric shaft part, which relates to the technical field of tool clamps and comprises a tool bottom plate, a tool main seat is fixedly arranged at the upper end of the tool bottom plate, and a part groove matched with the shape of an eccentric shaft part body is arranged at the center of the upper portion of the tool main seat. A side clamping sliding groove is formed in one side of the upper portion of the tool main base, and a side clamping mechanism used for clamping an eccentric shaft part body on the tool main base on the side edge is installed at the side clamping sliding groove. A jacking and pressing through groove is formed in the bottom of the part groove, and a jacking and pressing mechanism used for jacking and pressing the eccentric shaft part body in the vertical direction is installed at the jacking and pressing through groove; according to the utility model, the part groove is accurately matched with the eccentric shaft body, and the double fixation of side clamping and top pressing is combined, so that the repeated positioning accuracy and the gear ring jumping requirement during processing are ensured.
Owner:LIU AN JIANGHAI YONGDA MASCH MFG CO LTD

A method for rounding the spline surface with self-positioning angular spline

ActiveCN119457718BMilling cutterMachine tool
The present invention discloses a method for rounding a spline profile with angular self-positioning, comprising the following steps: S1, providing a keyway on a gear shaping cutter, wherein the keyway has an angular relationship consistent with any tooth of the gear shaping cutter, and designing a matching key on a gear shaping cutter arbor so that the gear shaping cutter has an angular relationship consistent with a machine tool; designing a fixture with a locating pin to fix a part on a CNC machining center; S2, processing at least one locating hole on the part; S3, using a forming column milling cutter that matches the rounding size of the spline profile to round the spline profile; the present invention saves tooling costs and greatly shortens the time required to align the spline angular position before rounding the spline profile.
Owner:CHINA HANGFA SOUTH IND CO LTD +1

A new energy wind power gear box gear shaping tool clamp

The application relates to the technical field of gear shaping, in particular to a tool clamp for gear shaping of a new energy wind power gear box, which comprises a base, the surface of the base is fixed with a supporting block, the surface of the supporting block is provided with a cover plate groove, a first circular groove and a second circular groove, the second circular groove is provided with a first rotating block and a rotating ring, the first circular groove is provided with a second rotating block, the surface of the second rotating block is provided with an extension rod, the end of the extension rod is provided with a swing plate, the end of the swing plate is provided with a clamping plate, the surface of the clamping plate is provided with an extension plate, and the surface of the extension plate is provided with a moving block.
Owner:WUXI XIHUA FOUNDRY CO LTD

Locking mechanism of gear shaping machine

The utility model relates to the technical field of gear shaping machines, and provides a gear shaping machine locking mechanism which comprises a bottom plate, a circular truncated cone is movably connected to the center of the top of the bottom plate, a supporting column is fixedly connected to the top of the circular truncated cone, and a rotating plate is fixedly connected to the top of the supporting column. According to the utility model, firstly, a workpiece to be processed is placed between the two clamps, then the two clamps are used for clamping the workpiece, and then the controller is used for starting the main shaft assembly, so that the main shaft assembly drives the cutting tool body to cut the workpiece; a worker reversely rotates a hand rocker firstly, the hand rocker drives a screw rod to rotate reversely, a moving plate gradually moves vertically downwards along the screw rod through continuous reverse rotation of the screw rod, at the moment, movement of the moving plate is limited through two square grooves, and therefore a workpiece can be better locked, the workpiece is prevented from rotating disorderly in the cutting process, and the work efficiency is improved. And the cutting efficiency of the locking mechanism of the gear shaping machine is improved.
Owner:JIANGXI RUIDING PRECISION TRANSMISSION

Laser ultrasonic precision controllable machining device and method for complex blade-shaped gear shaping cutter

The invention discloses a laser ultrasonic precision control machining device and method for a complex blade shape gear shaping cutter, and the method comprises the steps: building a cutter three-dimensional model, and dividing the cutter three-dimensional model into a plurality of machining regions; configuring a process parameter packet for each processing area; generating an integrated processing path integrating the laser scanning path and the tool motion path according to each process parameter packet; according to the integrated machining path, a laser device emits laser to machine the machining tool to which ultrasonic vibration is applied; when each processing area is processed, at least one of the following phase synchronization strategies is adopted; and when at least part of the machining area is machined, real-time position compensation is conducted on the laser focus according to the vibration displacement of the machining tool. The material removing efficiency of the gear shaping cutter can be improved, the surface forming quality is better, and then the machining efficiency and machining precision of the gear shaping cutter can be improved.
Owner:CENT SOUTH UNIV +1

Gear machining device

The invention relates to the technical field of gear machining equipment, in particular to a gear machining device which comprises a device body, a main machine part is arranged on the upper side of the device body, a collecting groove is formed in the front side of the main machine part in a sunken mode, a slotting cutter and an oil nozzle are installed on the front side of the main machine part, and a collecting cavity is formed in the device body. A discharge port is formed in the bottom of the collecting tank, a first moving seat is arranged at the position, above the partition plate, of the collecting cavity in a horizontal moving mode in the front-back direction, a turning plate is arranged on the upper side of the first moving seat, and a filter screen box is installed on the upper side of the turning plate; and a turnover mechanism used for driving the turnover plate to rotate around the hinge is installed on the left side of the chipping chamber, and blowing mechanisms used for cleaning the turned filter screen box are arranged on the left side and the right side of the chipping chamber correspondingly. The problem that in the prior art, in the cooling oil recovery process of the gear shaping machine, after metal scraps block filter screen holes, the metal scraps and a filter screen need to be manually cleaned is solved.
Owner:LUZHOU HI TECH AVIC TRANSMISSION & STEERING SYST CO LTD

Universal long shaft part gear shaping clamp

The utility model belongs to the technical field of machine tool machining, and discloses a universal long shaft part gear shaping clamp which comprises a connector, a body and a positioning support. The body is coaxially communicated with the positioning support, and a limiting step is formed at the joint of the body and the positioning support; an expansion sleeve is arranged in the body in a sleeved mode, the top end of the expansion sleeve can abut against the limiting step, and the lower end of the expansion sleeve stretches into the installation cavity. And a third mounting hole for fixing the long shaft part to be machined is formed in the expansion sleeve in a penetrating manner. The gear shaping clamp comprises the body and the positioning supports which are detachably connected, and the length of the gear shaping clamp can be adjusted by replacing the positioning supports with different lengths for long-shaft parts with different lengths, so that the variety of the long-shaft parts compatible with the clamp is expanded, the whole set of gear shaping clamp does not need to be replaced during production replacement, rapid production replacement is achieved, and the production efficiency is improved. And the production cost of an enterprise is saved.
Owner:SHAANXI FAST GEAR CO LTD

Gear cutting tool and machining method

The invention relates to the technical field of gear machining equipment, in particular to a gear cutting tool and a machining method.The gear cutting tool comprises a machine tool, a telescopic rod, a fixing table and a spray head and further comprises a clamp, a gear shaping cutter assembly and a flowing assembly, the clamp is connected to the lower end of the telescopic rod, the gear shaping cutter assembly is connected with the clamp, and the gear shaping cutter assembly comprises a cutter head, an upper cutter and a lower cutter; the cutter head is connected with the clamp, and the upper cutter and the lower cutter are both connected with the outer wall of the cutter head. By arranging the upper cutter and the lower cutter, the original cutting output is divided into two parts, the load of a cutting edge during cutting is reduced, the service life of the cutter is prolonged, a cooling cavity is formed between the upper cutter and the lower cutter in the cutting process, cooling oil is gathered in the cooling cavity, and in the cutting process of the upper cutter and the lower cutter, the cutting efficiency is improved. The cutter can be fully cooled by cooling oil, and the upper cutter and the lower cutter can be fully lubricated in the cutting process, so that the service life of the cutter is prolonged.
Owner:许成杰

Built-in split oil cylinder driving tool rest structure and gear shaping machine tool

The built-in split oil cylinder driving tool rest structure comprises a rack and a tool shaft, a through hole system is formed in the rack, the tool shaft is movably installed in the hole system, the lower end of the tool shaft extends out of the rack, a sealing ring table is arranged in the middle of the tool shaft, and the sealing ring table is in sliding sealing connection with the hole system; the inner wall of the lower end of the hole system is in sliding sealing connection with the outer wall of the lower section of the cutter shaft, an ascending oil cavity is formed between the outer wall of the lower section of the cutter shaft and the hole system, an ascending oil inlet is formed in the rack and communicated with the ascending oil cavity, an axial blind hole is formed in the upper end of the cutter shaft, and the lower end of the descending piston assembly extends into the blind hole and is in sliding sealing connection with the blind hole; the upper end of the descending piston assembly is fixed to the machine frame, the descending piston assembly is provided with an axially-penetrating oil channel, and a descending oil inlet is formed in the top of the oil channel, so that structural rigidity weakening and main cutting thrust loss caused by a middle connecting piece can be avoided, cutting rigidity is improved, the total height of the whole tool rest can be shortened, and the occupied space of a machine tool is reduced.
Owner:YICHANG CHANGJIANG MASCH TECH CO LTD

Rolling forming device and method for large module standard straight spur gears

The application relates to a rolling forming device and method for a large-module standard straight-tooth cylindrical gear, which comprises an extruding device and a rolling forming device. The blank is gradually rolled in a ring rolling process, so that the blank is in local plastic deformation at any time, the forming has continuity and gradualness, the loading speed can be adjusted at any time according to the deformation condition, and the situation that the gear forming process has large load and excessively wears the die is avoided. The rolling core roller is gradually expanded in the inside, the stable contact between the die tooth shape and the blank can be effectively maintained, the tooth tip "poking" caused by the insufficient positioning accuracy in the rolling process can be effectively avoided, the forming stability is good, and the gear precision is high. The method is still applicable to the forming of a large-module gear, the situation that the size of the gear is large, the size of the forming equipment is increased by several times, the forming efficiency and stability are affected, the equipment structure is simple, and the operation is convenient; the forming process is simple, there is no flash, the metal flow line is completely preserved, the material utilization rate is high, and the formed gear has good mechanical properties.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

High-efficiency gear shaping machine and gear shaping process method thereof

The high-efficiency gear shaping machine comprises an excess material collecting assembly, a driving assembly is arranged on the inner side of the excess material collecting assembly and comprises a driving part arranged on the inner side of the collecting assembly, the output end of the driving part is connected with a jacking mechanism, and a limiting mechanism is arranged on the side, away from the driving part, of the jacking mechanism; a loading mechanism is arranged on the side, away from the jacking mechanism, of the limiting mechanism, the limiting mechanism comprises a bottom plate arranged on one side of the jacking mechanism, positioning grooves are evenly formed in the side, away from the jacking mechanism, of the bottom plate, the loading mechanism is rotationally arranged on the bottom plate and clamped to the positioning grooves, and a gear shaping assembly is arranged on the outer side of the collecting assembly. Therefore, the residual material collecting function and the workpiece positioning structure are spatially coupled, and real-time separation of machining residues is achieved through a dynamic scraping and layered filtering mechanism. According to the linkage design of the driving assembly and the loading mechanism, it can be guaranteed that the scraping action is triggered synchronously when the workpieces rotate and are switched, and efficiency loss caused by shutdown slag removal is avoided.
Owner:WUXI TSANG YOW AUTO PARTS CO LTD

Gear shaping machine

The invention provides a gear shaping machine. The gear shaping machine comprises a machine table. A material loading disc is rotationally mounted at the top of the machine table, is used for placing a workpiece and is connected with a rotary position adjusting mechanism; a clamping mechanism is arranged on the loading disc; the clamping mechanism comprises a plurality of pressing seats, the multiple pressing seats are arranged on the material carrying disc in an annular array mode, the pressing seats are connected with driving parts, and elastic pieces are arranged in the driving parts; a lifting part is arranged above one side of the material carrying disc, a connecting column is fixed to the output end of the lifting part, the connecting column is connected with a cutting knife, and a pressing plate is fixed to the connecting column; the driving part is connected with a pressed frame, and the top of the pressed frame extends to one side of the top of the pressing plate; the bottom end of the oil discharge pipe is located on one side below the cutting knife, the oil discharge pipe is connected with an oil injection mechanism, the oil injection mechanism is connected with a pressed block, and the pressed block is located on one side of the bottom of the pressing plate. The clamping mechanism linked with the lifting part is arranged on the material carrying disc, so that automatic clamping of the workpiece and automatic clamping releasing after machining can be completed without manual operation.
Owner:HANGZHOU CHANGHUA INTELLIGENT TECH CO LTD

A gear shaping fixture for gearbox gear machining

This utility model relates to the field of gearbox parts processing technology, and discloses a gear-shaping fixture for gearbox gear processing, including a rotating base. A rotating ring is movably connected in the inner cavity of the rotating base. A spiral rack is fixedly installed on the upper part of the rotating ring, and a helical gear ring is fixedly installed on the bottom of the rotating ring. A servo motor is fixedly installed at the front of the inner cavity of the rotating base. A helical gear is fixedly sleeved on the output shaft of the servo motor, and the outer extension of the helical gear meshes with the helical gear ring. A moving rod is evenly and movably sleeved in the inner cavity of the rotating base above the rotating ring. The bottom of the moving rod is evenly provided with grooves, which fit with the spiral rack. The servo motor drives the rotating ring, and with the fit between the spiral rack and the grooves, the moving rod drives the clamping plate to fix the internal gear. This facilitates the fixture to fix internal gear rings of different diameters, enhances the applicability of the fixture, improves the working efficiency of the fixture, ensures that the internal gear ring is centered, and reduces positional errors.
Owner:CHONGQING QIJIANG DISTRICT HUAFENG TRANSMISSION CO LTD

Face gear tooth surface modeling method and device, equipment, storage medium and computer program product

The invention relates to the technical field of gear modeling, in particular to a face gear tooth surface modeling method and device, equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring processed surface contour data of a to-be-processed face gear tooth surface under a plurality of processing parameters, and judging whether the to-be-processed face gear tooth surface has fractal characteristics or not based on the processed surface contour data; if yes, fractal characteristic parameters of the tooth surface of the to-be-processed face gear are determined according to the machined surface contour data; on the basis of the gear shaping machining principle, a tool tooth profile equation is constructed, the tool tooth profile equation is combined with the geometrical characteristic parameters of the face gear to be processed, and a tooth face description equation is obtained; the fractal characteristic parameters are embedded into the tooth surface description equation, and tooth surface fractal curved surface data points are obtained; and the data points of the fractal curved surface of the tooth surface are imported into the preset modeling tool to obtain the three-dimensional model of the target face gear, so that the modeling accuracy of the tooth surface of the face gear is improved.
Owner:HUBEI UNIV OF ARTS & SCI