Showing papers on "Gear shaping published in 2020"
TL;DR: It is concluded that the envelope motion model and methods for cutting force prediction in gear shaping process of variable transmission ratio rack presented in this paper are feasible.
13 citations
TL;DR: Zhou et al. as discussed by the authors developed a 3D automatic non-circular gear model generation software, which was a secondary development product of the software UG. Based on the generating principle for gear shaping with gear cutters, a theoretical model for calculating the tooth profile of noncircular gears with addendum modification was derived.
Abstract: With a focus on the design of tooth profiles of non-circular gears with addendum modifications that conform to the given complex transmission ratio curves and based on a series of discrete point sets on the pitch curves, the criteria for tooth profile distortion and undercut in non-circular gears were proposed. With the constraint of no tooth profile distortion and undercut, the addendum modification coefficient was introduced into the calculation of the distorted and undercut segments of the tooth profile of a non-circular gear, and the addendum modification coefficient of each contact point of the non-circular gear was obtained. Based on the generating principle for gear shaping with gear cutters, a theoretical model for calculating the tooth profile of non-circular gears with addendum modification was derived. The cutting and radial feeding motions of the pinion cutter were ignored, and only the meshing motion was considered. The involute tooth profiles of the pinion cutter enveloped the tooth profile of the non-circular gear. 3D automatic non-circular gear model generation software was developed, which was a secondary development product of the software UG. A non-circular gear in a rice potted seedling transplanting mechanism was designed, and the transplanter was developed and tested. The test results showed that the designed tooth profile of non-circular gear achieved the variable transmission ratios required by the transplanting mechanism. When the transplanting efficiencies were 140 plants/min, 160 plants/min and 180 plants/min, the transplanter completed the rice potted seedling transplanting operation with high quality.
Keywords: non-circular gear; tooth profile generation; addendum modification coefficient; enveloping characteristics; transplanting mechanism
DOI: 10.25165/j.ijabe.20201306.5659
Citation: Zhou M L, Yang Y C, Wei M X, Yin D Q. Method for generating non-circular gear with addendum modification and its application in transplanting mechanism. Int J Agric & Biol Eng, 2020; 13(6): 68–75.
3 citations
Patent•
18 Feb 2020
TL;DR: In this paper, a gear shaping machine for rack gear shaping machining is described, where the number of bearing devices is two and a fixing column is fixed to the upper surface of the transverse plate.
Abstract: The utility model discloses a gear shaping machine for rack gear shaping machining. The utility model particularly relates to the field of part machining, the utility model discloses a gear shaping machine for rack gear shaping machining. Transverse plate, the upper surface of the transverse plate is fixedly connected with a supporting device; and the number of the bearing devices is two, a fixingcolumn is fixedly connected to the upper surface of the transverse plate, a fixing device is fixedly connected to the upper surface of the fixing column on the left side, a gear shaping device is fixedly connected to the surface of the fixing column, each bearing device comprises an outer supporting frame, and a first motor is arranged in each outer supporting frame. The first fixing plate is driven by the third motor to move up and down to generate a fixing effect, meanwhile, the spring clamping block of the fixing device is clamped in the semicircular clamping groove, the central shaft rodis additionally arranged, the working efficiency of the machine is improved in the gulleting process, and the problem that most gulleting machines on the market are not ideal in fixing effect is solved.
1 citations
Patent•
10 Mar 2020
TL;DR: In this article, an internal gear slotting cutter of a swing hydraulic cylinder is presented, which can be applied to machining of internal helical gears of the swing hydraulic cylinders.
Abstract: The utility model provides an internal gear slotting cutter of a swing hydraulic cylinder. The utility model discloses a numerical control lathe. Cutter bar with low rigidity, machining precision is not high, machining efficiency is low, according to the gear shaping cutter for the internal gear of the swing hydraulic cylinder, rigidity of a cutter bar is improved, machining efficiency is improved, and machining precision is improved. The tool rest comprises a tool rest seat sleeve, a lead screw is rotationally arranged on the knife rest seat sleeve; a feed motor is fixedly arranged above theknife rest seat sleeve; an ejector rod piston is coaxially arranged in an inner cavity of the knife rest seat sleeve, a lead screw nut is fixedly arranged on the ejector rod piston, an ejector rod isfixedly and coaxially arranged at the lower end of the ejector rod piston, a knife rest is coaxially and fixedly arranged below the knife rest seat sleeve, a knife rest side hole is formed below the knife rest, a slotting knife is arranged in the knife rest side hole, and a return spring groove is formed in the slotting knife. The internal helical gear machining device can be widely applied to machining of internal helical gears.
1 citations
Patent•
03 Apr 2020
TL;DR: In this article, the utility model relates to the technical field of gear shaping, in particular to a gear shaper for aviation gear production, and it is shown that discharging and feeding of another workpiece can be completed in the workpiece machining process, so that a large amount of time is saved, and the machine body is at least doubled.
Abstract: The utility model relates to the technical field of gear shaping. The utility model relates to a gear shaper, in particular to a gear shaper for aviation gear production. The problems that in the prior art, a YK31350 gear shaping machine is only provided with one mounting column; after a workpiece is machined, the workpiece needs to be remachined through a series of processes of discharging and feeding. Processing efficiency is low, the defect that the market requirements cannot be met is overcome; bottom plate, wherein a machine body is fixedly mounted on one side of the bottom plate; a mounting groove is formed in one side of the machine body; and the same mounting shaft is rotationally mounted on the inner walls of the two sides of the mounting groove, the outer side of the mounting shaft is fixedly sleeved with a gear-shaped cutter, a vertical shaft is rotationally mounted at the top of the bottom plate, a transverse disc is fixedly mounted at the top of the vertical shaft, a fixing rod is fixedly mounted at the top of the transverse disc, and a disc is fixedly mounted at the top of the fixing rod. According to the utility model, discharging and feeding of another workpiece arecompleted in the workpiece machining process, so that a large amount of time is saved, and the machining process efficiency of the machine body is at least doubled.
1 citations
Patent•
06 Nov 2020
TL;DR: The straight-to-oth conical-tooth gear shaper for gear machining is described in this paper, which consists of an operating table, a hydraulic cylinder, a top plate at the bottom of the hydraulic cylinder and supporting rods are fixedly mounted at two ends of the bottom plate, and the bottoms of the two dials are movably connected with gear-shaping plates in a clamped mode.
Abstract: The invention relates to the technical field of gear machining, and discloses a straight-tooth conical-tooth gear shaper for gear machining. The straight-tooth conical-tooth gear shaper for gear machining comprises an operating table, a hydraulic cylinder is fixedly mounted at the top of the operating table, a top plate is fixedly mounted at the bottom of the hydraulic cylinder, and supporting rods are fixedly mounted at two ends of the bottom of the top plate; the tops of the two supporting rods are sleeved with dials, the bottoms of the two dials are movably connected with gear-shaping plates in a clamped mode, the middles of the supporting rods are in threaded connection with threaded rings, and a supporting frames is fixedly mounted at the right ends of the bottoms of the gear-shapingplates. According to the straight-tooth conical-tooth gear shaper for the gear machining, the purpose of good working effect is achieved by arranging the operating table, the gear-shaping plates, thehydraulic cylinder and the like, the two gear-shaping plates ascend and descend through the hydraulic cylinder, the supporting rods penetrate through the whole gear shaping plates as an up-and-down moving track, and then buffer springs and sleeves are additionally arranged at the bottoms of the supporting rods; and when the gear-shaping plates ascend and descend each time, the bottoms of the supporting rods are sleeved with the sleeves once.
Patent•
18 Dec 2020
TL;DR: In this paper, a fixed clamping extension type automobile part machining machine tool was proposed, where the position of a magnetic plate can be controlled by controlling the electrifying amount of each electromagnetic coil, then inclination at different angles can be achieved through up-down position movement of the magnetic plate, and meanwhile, the transverse displacement amount can be sealed through stretching and retracting of gear shaping.
Abstract: The invention provides a fixed clamping extension type automobile part machining machine tool, and relates to the field of automobile part machining. The fixed clamping extension type automobile partmachining machine tool comprises a bottom plate, a groove is formed in the center of the upper surface of the bottom plate, a main shaft gear is rotatably connected into the groove, a fixed sleeve isfixedly connected to the upper surface of the main shaft gear, a center shaft is slidably connected into the fixed sleeve, a rotating plate is fixedly mounted at the top end of the center shaft, telescopic sleeves are fixedly mounted on the upper surfaces, located on the two sides of the fixed sleeve, of the bottom plate, and rotating rings are fixedly mounted at the top ends of the telescopic sleeves. According to the fixed clamping extension type automobile part machining machine tool, the position of a magnetic plate can be controlled by controlling the electrifying amount of each electromagnetic coil, then inclination at different angles can be achieved through up-down position movement of the magnetic plate, and meanwhile, the transverse displacement amount can be sealed through stretching and retracting of gear shaping, and therefore, an inclined working surface can be machined.
Patent•
08 May 2020
TL;DR: In this article, a variable transmission ratio rack gear shaping force prediction method was proposed, which consists of three steps: establishing a cutter gear tooth model, discretizing the cutter gear teeth model, and establishing a machined rack model in a workpiece coordinate system; S2, calculating a polar angle and a polar diameter from the discrete point of the rack to the center of slotting cutters; S3, the discrete points are screened out to serve as cut points, and the number of all the screened discrete points is the size a of the cutting area; S4
Abstract: The invention discloses a variable transmission ratio rack gear shaping force prediction method. The method comprises the following steps of S1, establishing a cutter gear tooth model, discretizing the cutter gear tooth model, and meanwhile, establishing a machined rack model in a workpiece coordinate system; S2, calculating a polar angle and a polar diameter from the discrete point of the rack tothe center of slotting cutters; S3, the discrete points are screened out to serve as cut points, and the number of all the screened discrete points is the size a of the cutting area; S4, judging thevertical position relation between the discrete points of all the slotting cutters and the machined surface of the machined rack; S5, screening out the discrete points at the same position on the machined surface of the machined rack, and the number of all the screened discrete points is the size b of the contact length; and S6, substituting the cutting area a and the cutting contact length b intothe metal cutting force model to finish the prediction calculation of the gear shaping force of the variable transmission ratio rack in each direction. The method provides a novel accurate calculation method for the cutting area and the cutting contact length, and accurate prediction of the gear shaping force of the variable transmission ratio rack is achieved.
Patent•
27 Mar 2020
TL;DR: In this paper, a core-embedded bronze turbine blank processing and manufacturing process is described, which comprises the steps of centrifugal casting, broaching, saw cutting, turning I, gear shaping, diffusing, press fitting, annealing and diffusing and turning II.
Abstract: The invention discloses a core-embedded bronze turbine blank processing and manufacturing process The process comprises the steps of centrifugal casting, broaching, saw cutting, turning I, gear shaping, diffusing, press fitting, annealing, diffusing and turning II The process has the beneficial effects that a bronze cast pipe subjected to centrifugal casting is adopted as the blank of a bronze gear sleeve, so that the air hole defects of sand mold casting and gravity casting are reduced; the broaching process is adopted, so that the inner surface machining efficiency is improved; blank saw cutting is adopted, so that the subsequent machining allowance is reduced, and near net shaping approaches; diffusing and annealing are carried out to enable the interface to form metallurgical bonding, so that the service life of a turbine is prolonged; and according to the process measures, the rejection rate and the production cost are remarkably reduced, the production automation transformationis facilitated, the use effect is good, and the popularization is facilitated
Patent•
20 Nov 2020
TL;DR: In this paper, a device for gear shaping aided by pulse current is presented, which relates to the technical field of gear shaping, and it includes a working table, a tool mounting mechanism, slide bars, a stepping motor, tool spindle box, and a gear shaping cutter.
Abstract: The invention discloses a device for gear shaping aided by pulse current, and relates to the technical field of gear shaping. According to the key points of the technical scheme, the device comprisesa working table, a tool mounting mechanism, slide bars, a stepping motor, a tool spindle box, a tool spindle, a gear shaping cutter, a processing and fixing platform, a lower chuck, a gear to be machined, an upper chuck, a screw, a nut, a nut mounting mechanism, a manipulator console, a manipulator and a pulsed power supply; the pulsed power supply is provided with a control switch; a positive pole and a negative pole of the pulsed power supply are connected with a positive wire and a negative wire separately, and the end of the negative wire is connected with the top surface of the gear shaping cutter; the end of the positive wire is connected with he top surface of the gear to be machined; and the side wall of the tool mounting mechanism is provided with an operation control panel, a single chip microcomputer and a power supply unit. According to the device, in the gear shaping process of the gear to be machined, the plastic deformation capacity of the gear to be machined can be improved, so that the gear shaping efficiency and accuracy are improved; and the device is high in automation degree, and the workload of manpower is reduced.
22 Jun 2020
TL;DR: The finite element method (FEM) is used to establish the simulation model and simulate the quenching and gear shaping process and results show that the first principal stress and Mises stress near the tooth root, with the value of 244 MPa and 1290 MPa, are larger than other parts.
Abstract: The floating support friction disk (FSFD) is one of the key components of the clutch, and its machining accuracy significantly affects its mechanical performance. In order to investigate the influence of gear shaping process on the dimensional accuracy of friction disk, this paper uses the finite element method (FEM) to establish the simulation model and simulate the quenching and gear shaping process. The temperature field and stress field of the friction disk blank during the quenching process, as well as the variation of stress and deformation during gear shaping, are obtained. The results show that the first principal stress and Mises stress near the tooth root, with the value of 244 MPa and 1290 MPa respectively, are larger than other parts. The maximum positive deformation (0.0233mm) and negative deformation (0.0476mm) is located at near the outer edge of the front and the bottom of tooth root, respectively.
Patent•
31 Jul 2020
TL;DR: In this article, a gear broaching process for thin-wall internal spline shaft machining is described, where the workpiece is made close to the final shape and size, and 0.4mm - 1mm machining allowance is correspondingly reserved for the inner hole, the outer circle and the length of the work piece after rough turning.
Abstract: The invention discloses a gear broaching process for a thin-wall internal spline shaft, and relates to the technical field of internal spline shaft machining. The gear broaching process specifically comprises the following steps that S1, firstly, a round steel material is selected for blanking, and the round steel material is cut into the size required by an internal spline shaft through cutting equipment according to the required workpiece size to form a workblank; and S2, rough turning is carried out on the workpiece, the cut workblank is polished through polishing equipment, after polishingis completed, the workpiece is clamped through a clamp, then rough machining is carried out on an inner hole, an outer circle and the length of the workpiece through a horizontal lathe, so that the workpiece is made to be close to the final shape and size, and 0.4mm - 1mm machining allowance is correspondingly reserved for the inner hole, the outer circle and the length of the workpiece after rough turning. According to the gear broaching process for the thin-wall internal spline shaft, the gear broaching process is adopted to replace a gear shaping process to machine an internal spline, theproduct machining precision is improved, the product quality is stabler, the product damage rate is reduced, the economic loss is reduced, and the loss of a cutter is small.
Patent•
18 Aug 2020
TL;DR: In this article, a method for creating or machining toothings on workpieces in rolling machining engagement, in particular by gear shaping, in which an NC control of the rotary spindle drives of workpiece and tool comprises regulation of the rotation angle position of each particular spindle to setpoints depending on the process parameters associated with the process design underlying the method, wherein data containing information relating to a deflection, caused by the process forces that arise during machining and resulting in profile shape deviations on the workpiece, of the position of the tool flanks of tool and
Abstract: The invention relates to a method for creating or machining toothings on workpieces in rolling machining engagement, in particular by gear shaping, in which an NC control of the rotary spindle drives of workpiece and tool comprises regulation of the rotation angle position of each particular spindle to setpoints depending on the process parameters associated with the process design underlying the method, wherein data containing information relating to a deflection, caused by the process forces that arise during machining and resulting in profile shape deviations on the workpiece, of the position of the tool flanks of tool and workpiece out of their position intended as per the process design, are used to determine a correction, taking the deflection into account, of the rotation angle position of workpiece spindle and/or tool spindle and thus to modify the setpoints of the regulation.
Patent•
26 Jun 2020
TL;DR: In this paper, a segmented machining gear shaping clamp for an inner gear ring is presented, which is used for machining a large inner gear circle in segmented mode and the radius size of a reference circle exceeds the machining range of the gear shaper.
Abstract: The invention provides a segmented machining gear shaping clamp for an inner gear ring, and belongs to the technical field of machine tool clamps. The problem that a gear shaper cannot be used for machining an inner gear when a large inner gear ring is machined in a segmented mode and the radius size of a reference circle exceeds the machining range of the gear shaper is solved. A rotating shaft on a workbench of the gear shaper is fixedly connected with a second gear, a fixed shaft is arranged on an outer side of the rotating shaft, a machine tool frame is arranged on an outer side of the fixed shaft, the fixed shaft is fixedly connected with a flat plate block, a shaft of a first gear is supported on the flat plate block, the second gear is meshed with the first gear, and the first gearis fixedly connected with a clamp plate; a support is arranged on the machine tool frame, a roller is arranged on the support, and is connected with a lower side of the clamp plate and used for supporting the clamp plate; a workpiece is positioned through two pins and the clamp plate and is connected with the clamp plate through a pressing plate; and the workpiece is pressed and fixed, and then issubjected to gear shaping machining through a gear shaping cutter. The segmented machining gear shaping clamp is mainly used for segmented machining of the inner gear ring.
TL;DR: In this paper, the results of computer simulation of the crystallization of castings from high-speed steel R6M5, intended for the manufacture of cutters and gear shaping tools in the conditions of OJSC “Minsk Gear Plant” are presented.
Abstract: The article presents the results of computer simulation of the crystallization of castings from high-speed steel R6M5, intended for the manufacture of cutters and gear shaping tools in the conditions of OJSC “Minsk Gear Plant”. The use of modeling made it possible to optimize the gating system, reduce this volume of the profitable part by 30–35 % and increase the yield of suitable casting, which made it possible to reduce the consumption of expensive alloying elements introduced into the melt to compensate for burnout during melting and casting.
Patent•
24 Dec 2020
TL;DR: In this paper, a method for gear shaping a periodic structure, in particular a toothing on a workpiece, is described, in which the workpiece is brought into material-removing machining engagement with a toothed shaping tool which rotates about its axis of rotation in rolling contact with the work piece rotation.
Abstract: 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.
Patent•
10 Jul 2020
TL;DR: In this article, a conical hole type gear hydraulic clamp is described, which consists of a pull rod, an upper pressing cover, a lower support, a conular sleeve, a compression spring, a clamp body, a base partly connected with a machine tool and a connecting rod.
Abstract: The invention discloses a conical hole type gear hydraulic clamp. The conical hole type gear hydraulic clamp comprises a pull rod, an upper pressing cover, a lower support, a conical sleeve, a compression spring, a clamp body, a base partly connected with a machine tool and a connecting rod. According to the clamp, elastic force of the compression spring is used for ejecting the conical sleeve upwards, the outer conical face of the conical sleeve and the inner conical wall of the workpiece are in tight contact, workpiece centering is achieved, according to the clamp, the lower support is attached to the lower end face of the workpiece, positioning of the workpiece in the machine tool Z direction is achieved, the connecting rod is used for outputting hydraulic force of the machine tool, through the pull rod, the hydraulic force is transmitted to the upper pressing cover, according to the clamp, the feature that the end face of the lower support is perpendicular to the Z-direction centerline of the clamp is used, the aim that the workpiece is clamped without deflection is achieved, the problems of slow manual clamping and dismounting, and unstable manual clamp positioning precisionin procedures of hobbing, chamfering, gear shaping and gear grinding of a conical hole structure gear can be solved, the machining quality is improved, and the production efficiency is improved.
Patent•
29 May 2020
TL;DR: In this paper, a numerical control gear machining machine tool capable of obliquely machining is described. But the machining type of the gear is increased, and the problem of abrasion between the chips and the disc shape gear shaping cutter is avoided.
Abstract: The invention discloses a numerical control gear machining machine tool capable of obliquely machining. The structure of the numerical control gear machining machine tool comprises an intelligent control panel, a machine body, an equipment support base, a blank clamping structure, a machine tool sliding rail and a blank milling device; the equipment support base is horizontally mounted to a groundof a machining workshop, the machine tool sliding rail is nested to the left end of the upper surface of the equipment support base, the machine tool body is located above the equipment support baseand is in clearance fit with the machine tool sliding rail, the gear machining machine tool is matched with a chip cutting cleaning device through a conical machining structure, the milling stroke isadjusted to the bottom of the conical machining structure during the milling process of a blank, so that a gear machined by the gear shapping machine is conical, the machining type of the gear of thegear shapping machine is increased, meanwhile, debris on the surface of a disc shape gear shaping cutter after milling are cleared away, the problem of abrasion between the chips and the disc shape gear shaping cutter is avoided, and the service life of the gear shaping cutter is effectively prolonged.
Patent•
10 Apr 2020
TL;DR: In this paper, a variable-transmission-ratio rack gear-shaping machining method is presented, which is based on a geometrical shape of a gearshaping cutter and an enveloping movement coordinate transformation matrix.
Abstract: The invention discloses a variable-transmission-ratio rack gear-shaping machining manufacturing method. The method comprises the following steps of S1, according to a gear-shaping cutter parameters and a geometrical shape, building a gear-shaping cutter tooth outline model; S2, obtaining a transmission ratio function; S3, obtaining an enveloping movement coordinate transformation matrix from a gear-shaping coordinate system to a machined rack coordinate system; S4, converting gear-shaping cutter mathematical model coordinates to the machined rack coordinate system, and obtaining an envelope mathematical model of a variable-transmission-ratio rack; S5, according to a conversion relation between a cutter position point instruction and motion axes, converting the cutter envelope motion trackinto machine tool machining codes; and S6, according to the obtained machining codes, achieving the variable-transmission-ratio rack gear-shaping machining on a four-axis three-linked gear-shaping machine tool. Design and a process are combined, the cutter envelope motion track is converted into the machine tool machining codes, finally, variable-transmission-ratio rack gear-shaping machining is achieved, and the advantages of being low in machining cost, convenient to machine and easy to obtain are achieved.
Patent•
12 Jun 2020
TL;DR: In this paper, a machining process for forging a ring gear has been described, which has the effects that large-size and thick workpieces can be conveniently forged and pressed, and an inner hole can be easily formed.
Abstract: The invention relates to a machining process for forging a ring gear. The machining process comprises the following steps of 1, blanking; 2, heating; 3, raw material forging; 4, ring rolling; 5, oxideskin removal; 6, ring body annealing; 7, edge cutting, trimming and shaping; 8, thermal refining; and 9, gear shaping. The machining process for forging the ring gear has the effects that large-sizeand thick workpieces can be conveniently forged and pressed, and an inner hole can be conveniently formed.
Patent•
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13 Oct 2020
TL;DR: In this paper, a gear shaping machine was proposed to reduce the influence of waste scraps on the machining quality of a workpiece by obliquely arranging the material collecting disc and the compression cylinder.
Abstract: The invention relates to a gear shaping machine, and relates to the technical field of gear machining equipment. The gear shaping machine comprises a workbench, a workpiece seat and a gear shaping cutter, wherein the workbench comprises a table top, and the workpiece seat is arranged on the table top; the gear shaping machine further comprises a waste scrap collecting device, wherein the waste scrap collecting device comprises a material collecting disc and a compression mechanism, and the compression mechanism comprises a compression cylinder and a compression assembly; and a blanking groovehole is formed in the table top, the material collecting disc is arranged below the table top so as to receive waste scraps falling from the blanking groove hole, the material collecting disc is obliquely arranged, the material collecting disc communicates with the compression cylinder, and the communicating position of the material collecting disc and the compression cylinder is positioned at thelowest end of the material collecting disc. According to the gear shaping machine, the influence of the waste scraps on the machining quality of a workpiece can be reduced.
Patent•
30 Oct 2020
TL;DR: In this article, an air-floating gear shaping fixture with a clamping mechanism is presented, where multiple air outlet holes are formed in the inner wall of the positioning inner hole and distributed in the circumferential direction of the position inner hole.
Abstract: The invention discloses an air floating gear shaping fixture and a gear shaping machine. The air floating gear shaping fixture comprises an air floating assembly, a rigid gear supporting structure anda clamping mechanism, wherein the air floating assembly is provided with a positioning inner hole, multiple air outlet holes are formed in the inner wall of the positioning inner hole and distributedin the circumferential direction of the positioning inner hole; the rigid gear supporting structure is used for limiting the axial position of a rigid gear in the positioning inner hole; and the clamping mechanism is used for clamping the rigid gear in the positioning inner hole to the rigid gear supporting structure. When the clamping mechanism is in a loosening state, the rigid gear is placed in the positioning inner hole of the air floating assembly, compressed air is sprayed out from the air outlet holes, the rigid gear floats and is centered, and then the rigid gear is clamped by the clamping mechanism. According to the technical scheme, with adoption of air floating centering, the centering speed is high, accuracy is high, and labor intensity of workers is greatly reduced. The air floating gear shaping fixture further has a self-cleaning function, that is, after one rigid gear is machined, the rigid gear is taken out, then air of the air floating can be opened, iron scraps remaining on the air floating assembly and the rigid gear supporting structure can be blown out, and the clamping accuracy of the next rigid gear is guaranteed accordingly.
Patent•
10 Jul 2020
TL;DR: In this paper, a floating support friction plate machining deformation prediction method was proposed for vehicle transmission key part deformation predictions, and the deformation of the machined friction plate was analyzed through simulation analysis.
Abstract: The invention relates to a floating support friction plate machining deformation prediction method, and belongs to the field of vehicle transmission key part deformation prediction. In order to overcome the defects that the cutting force and the cutting temperature of the gear shaping machining of a friction plate are difficult to measure conventionally, a friction plate blank model and a tooth structure model are established through ANSYS, quenching simulation of the friction plate is performed, the cutting force is obtained through simulation in AdvantEdge, machining conditions such as the cutting force are set in ANSYS, and gear shaping machining simulation is conducted through ANSYS. Through simulation analysis of gear shaping machining, the friction plate full-tooth machining processis simulated, deformation of the machined friction plate is obtained, simulation of the machining process of vehicle transmission key parts and prediction of machining deformation are achieved, the simulation result can play a role in guiding actual production, and a large amount of manpower, material resources and financial resources are saved through simulation.