Rapid evaluation method and device for gear grinding manufacturability of asymmetric planet row gear ring, terminal and storage medium

Abstract

The invention belongs to the technical field of automobiles, and particularly relates to a rapid evaluation method and device for gear grinding manufacturability of an asymmetric planet row gear ring, a terminal and a storage medium. Comprising the following steps: step 1, establishing a gear ring meshing model; 2, rough machining hob cutter parameters are input; 3, analyzing a tool simulation result; and step 4, outputting a manufacturability simulation analysis report. According to the method, the gear grinding manufacturability of the asymmetric gear ring can be rapidly evaluated and iterated, meanwhile, the performance evaluation range coverage is comprehensive and accurate, the result quantification is clear, the manufacturability evaluation time can be greatly saved, and the evaluation method for the gear machining manufacturability is comprehensive and systematic in process, accurate in calculation precision and capable of being rapidly iterated.

Description

Technical Field

[0001] The invention belongs to the field of automobile technology, and in particular to a method, a device, a terminal and a storage medium for rapid evaluation of the processability of asymmetric planetary gear ring grinding. Background Art

[0002] In the passenger car industry, with the rapid development of new energy vehicles, users have higher and higher requirements for the riding experience. The design of the shaft teeth of new energy reducers has gradually developed from parallel shaft helical gears with large total overlap to planetary gear structures with multiple planetary gear high-end surface overlap. At the same time, it is to meet the vehicle requirements of high-speed low-torque gears with good NVH performance and low-speed high-torque gears with good reliability. The planetary gear ring is designed as an asymmetric gear, which has certain difficulties in both design and development and production and manufacturing. At present, in order to ensure the processing accuracy and meshing stability of the gear ring, the gear ring can adopt the processing method of hobbing and worm grinding to reduce the gear noise level and improve the load-balancing characteristics of the planetary gear. However, the tool setting cycle is long, and the processability evaluation of the finished gear ring requires the inspection and test verification of the finished gear ring. This method has the characteristics of a long cycle and cannot consider the consistency of the grinding processing tolerance. Summary of the invention

[0003] To solve the above problems, the present invention proposes a method, device, terminal and storage medium for rapid evaluation of the processability of asymmetric planetary gear ring grinding. The evaluation method process for gear processing processability is comprehensive and systematic, with accurate calculation accuracy and rapid iteration.

[0004] The technical solution of the present invention is described as follows in conjunction with the accompanying drawings:

[0005] In a first aspect, an embodiment of the present invention provides a method for quickly evaluating the processability of asymmetric planetary gear ring grinding, comprising the following steps:

[0006] Step 1: Establish the gear ring meshing model;

[0007] Step 2: Input rough machining hob tool parameters;

[0008] Step 3: Analyze the tool simulation results;

[0009] Step 4: Output process simulation analysis report.

[0010] Furthermore, the specific method of step one is as follows:

[0011] 11) The gear ring is divided into a positive drive tooth surface gear meshing part, a reverse drive tooth surface gear meshing part and a gear wheel body part according to its structure;

[0012] 12) The positive drive tooth surface gear meshing part, the reverse drive tooth surface gear meshing part and the gear wheel body part are all modeled parametrically.

[0013] Furthermore, the specific method of step 2 is as follows:

[0014] 21) Tool parameter input page creation, including setting tool simulation module, determining the gear ring to be pre-calibrated, selecting gear hobbing process for rough machining, and selecting worm grinding process for fine machining;

[0015] 22) Input hob prop parameters;

[0016] 23) Confirm the worm grinding wheel parameters.

[0017] Further, the specific method of step 22) is as follows:

[0018] 221) Enter the hob tool parameter editing page and create a new hob;

[0019] 222) Input the hob parameters in the property editing bar according to the hob drawing, so that the hob simulation diagram is completely consistent with the drawing;

[0020] 223) The hob parameter input specifically includes three parts. The first part is the input of the hob macro-size parameters, including the tool end correction distance, tool effective length, tool total length, tool groove number, tool rotation direction, and tool tooth top diameter; the second part is the input of the hob normal tooth shape parameters, including the tool tooth top height, tool module, tool normal tooth pitch, tool normal pressure angle, tool normal tooth thickness, tool half tooth top modification height, tool half tooth top pressure angle, and tool full tooth height; the third part is the input of the hob head shape parameters, including the blade height, head fillet radius, head protrusion length, head angle, and head height.

[0021] Further, the specific method of step 23) is as follows:

[0022] 231) Edit the parameters of the worm grinding wheel and create a new worm grinding wheel;

[0023] 232) Input the grinding wheel parameters in the property editing bar according to the grinding wheel tooth profile diagram, so that the grinding wheel simulation diagram is completely consistent with the grinding wheel tooth profile diagram;

[0024] 233) Input the grinding wheel parameters according to the grinding wheel normal tooth profile drawing, which include grinding wheel tooth top height, grinding wheel normal tooth pitch, grinding wheel normal pressure angle, grinding wheel normal tooth thickness and grinding wheel cutter head width.

[0025] Furthermore, the specific method of step three is as follows:

[0026] 31) Check the tooth top chamfer size: confirm that the tooth top chamfer after grinding meets the drawing requirements, that is, the chamfers on both sides are 0.25mm~0.35mm;

[0027] 32) Check of tooth top circle diameter: After fine machining, the tooth top circle diameter meets the design requirements;

[0028] 33) Check the tooth root arc diameter: the tooth root arc diameter after fine machining meets the design requirements;

[0029] 34) Check whether the tooth root TIF point exceeds the check: the actual involute point diameter of the gear after fine machining is smaller than the involute evaluation starting point diameter;

[0030] 35) Check the tooth root digging condition: smooth transition between the involute tooth surface and the tooth root arc, no convexity or step defects are allowed, and the finished product root digging amount is ≤0.05;

[0031] 36) Gear bending fatigue strength verification: The actual fatigue strength safety factor of the precision-machined gear is greater than the design safety factor or less than 0.5 of the design safety factor.

[0032] Furthermore, the specific method of step 4 is as follows:

[0033] 41) For the evaluation of the processability of asymmetric gear ring grinding, the TIF point diameter, EAP point diameter, tooth top chamfer diameter, maximum tooth root bending stress, and fatigue safety factor after fine machining are obtained, and the gear processing processability is finally evaluated; if 31) to 31) are not met, optimization is performed until the requirements are met;

[0034] 42) Carry out quick recalibration and output the processing technology evaluation parameters.

[0035] In a second aspect, an embodiment of the present invention further provides a device for quickly evaluating the processability of asymmetric planetary gear ring grinding, comprising:

[0036] Establishing a module for establishing a gear ring meshing model;

[0037] An input parameter module is used to input roughing hob tool parameters;

[0038] Analysis module, used to analyze tool simulation results;

[0039] Output module, used to output process simulation analysis report.

[0040] In a third aspect, a terminal is provided, including:

[0041] one or more processors;

[0042] a memory for storing the one or more processor-executable instructions;

[0043] Wherein, the one or more processors are configured to:

[0044] Execute the method described in the first aspect of the embodiment of the present invention.

[0045] In a fourth aspect, a non-temporary computer-readable storage medium is provided. When the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute the method described in the first aspect of an embodiment of the present invention.

[0046] In a fifth aspect, an application product is provided. When the application product is running on a terminal, the terminal executes the method described in the first aspect of the embodiment of the present invention.

[0047] The beneficial effects of the present invention are:

[0048] 1) The present invention can quickly evaluate and iterate the processability of asymmetric gear ring grinding. At the same time, the performance evaluation range is comprehensive and accurate, and the quantitative results are clear and concise, which can greatly save the processability evaluation time;

[0049] 2) The present invention is applicable to all planetary gear transmission product layouts, including NGW, NW and other planetary gear configurations;

[0050] 3) The analysis method in the present invention includes the establishment of a gear ring meshing model, the confirmation of rough machining hob tool parameters, the confirmation of fine machining worm grinding tool parameters, and the output of tool simulation result analysis items;

[0051] 4) The analysis method in the present invention includes the establishment of a gear ring meshing model, confirmation of rough machining hob tool parameters, confirmation of fine machining worm grinding tool parameters, output of tool simulation result analysis items, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0053] Figure 1 A schematic flow chart of a method for rapidly evaluating the processability of asymmetric planetary gear ring grinding according to the present invention;

[0054] Figure 2 Create a schematic diagram for the asymmetric ring gear mesh model;

[0055] Figure 3 Input schematic diagram for the macro-dimensional parameters of the hob;

[0056] Figure 4 Input schematic diagram for hob normal tooth profile parameters;

[0057] Figure 5 Input schematic diagram for hob cutter head parameters;

[0058] Figure 6 Input schematic diagram for grinding wheel parameters;

[0059] Figure 7 It is a schematic diagram for confirming the results of tool simulation gear tooth profile;

[0060] Figure 8 This is a schematic diagram of the tool simulation gear strength results;

[0061] Fig. 9 It is a schematic structural diagram of a device for rapid assessment of the processability of asymmetric planetary gear ring grinding according to the present invention;

[0062] Fig.10 The present invention is a schematic block diagram of a terminal structure. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0065] Embodiment 1

[0066] This embodiment provides a method for quickly evaluating the processability of asymmetric planetary gear ring grinding. The method can be performed by a device for quickly evaluating the processability of asymmetric planetary gear ring grinding in an embodiment of the present invention. The device can be implemented in software and / or hardware, as follows:

[0067] See also Figure 1 and Figure 2 , Step 1: Establish the gear ring meshing model, as follows:

[0068] 11) The gear ring is divided into a positive drive tooth surface gear meshing part, a reverse drive tooth surface gear meshing part and a gear wheel body part according to the structure;

[0069] 12) The positive drive tooth surface gear meshing part, the reverse drive tooth surface gear meshing part and the gear wheel body part are all modeled parametrically.

[0070] Step 2: Input the roughing hob tool parameters, as follows:

[0071] Gear tool parameter confirmation includes the creation of tool parameter input page, input of hob tool parameters, input of finishing worm grinding tool parameters, running tool simulation analysis, etc.

[0072] 21) The tool parameter input page is created, including setting the tool simulation module, determining the gear ring to be pre-calibrated, selecting the gear hobbing process for rough machining, and selecting the worm grinding process for fine machining.

[0073] 22) Input the parameters of the hob prop, as follows:

[0074] 221) Enter the hob tool parameter editing page and create a new hob;

[0075] 222) Input the hob parameters in the property editing bar according to the hob drawing, so that the hob simulation diagram is completely consistent with the drawing. The operation diagram is as follows: Figure 3 As shown;

[0076] 223) The hob parameter input specifically includes three parts. The first part is the hob macro-size parameter input, which includes the tool end correction distance, tool effective length, tool total length, tool groove number, tool rotation direction, tool tooth top diameter, etc. The parameter input diagram is as follows: Figure 3 As shown, the second part is the input of the normal gear profile parameters of the hob, which include tool tooth top height, tool module, tool normal pitch, tool normal pressure angle, tool normal tooth thickness, tool half tooth top modification height, tool half tooth top pressure angle, tool full tooth height, etc. The parameter input is shown as follows Figure 4 As shown in the figure, the third part is the input of the hob cutter head shape parameters, including blade height, cutter head fillet radius, cutter head protrusion length, cutter head angle, cutter head height, etc. The parameter input is shown in the figure below. Figure 5 shown.

[0077] 23) Confirm the parameters of the worm grinding wheel, as follows:

[0078] 231) Edit the parameters of the worm grinding wheel and create a new worm grinding wheel;

[0079] 232) Input the grinding wheel parameters in the property editing bar according to the grinding wheel tooth profile diagram, so that the grinding wheel simulation diagram is completely consistent with the grinding wheel tooth profile diagram;

[0080] 233) Input the grinding wheel parameters according to the grinding wheel normal tooth profile drawing. The parameters include grinding wheel tooth top height, grinding wheel normal tooth pitch, grinding wheel normal pressure angle, grinding wheel normal tooth thickness, grinding wheel cutter head width, etc. The parameter input diagram is as follows: Figure 6 shown.

[0081] Step 3: Analyze the tool simulation results as follows:

[0082] After determining the rough machining hobbing tool parameters and gear grinding parameters, simulation calculations are performed to obtain the gear profile parameter diagram and gear fatigue strength safety factor after finishing gear grinding under the three conditions of upper limit, nominal limit and lower limit of grinding allowance. The simulation results of gear tooth profile after finishing are shown in the figure below. Figure 7 As shown in the figure, the simulation results of gear strength after finishing are shown in the figure. Figure 8 If the tool calibration result does not meet the evaluation requirements, the tool needs to be adjusted and recalibrated;

[0083] 31) Check the tooth top chamfer size: confirm that the tooth top chamfer after grinding meets the drawing requirements, that is, the chamfers on both sides are 0.25mm~0.35mm;

[0084] 32) Check of tooth top circle diameter: After fine machining, the tooth top circle diameter meets the design requirements;

[0085] 33) Check the tooth root arc diameter: the tooth root arc diameter after fine machining meets the design requirements;

[0086] 34) Check whether the tooth root TIF point exceeds the check: the actual involute point diameter of the gear after fine machining is smaller than the involute evaluation starting point diameter;

[0087] 35) Check the tooth root digging condition: smooth transition between the involute tooth surface and the tooth root arc, no convexity or step defects are allowed, and the finished product root digging amount is ≤0.05;

[0088] 36) Gear bending fatigue strength verification: The actual fatigue strength safety factor of the precision-machined gear is greater than the design safety factor or less than 0.5 of the design safety factor.

[0089] Step 4: Output the process simulation analysis report, as follows:

[0090] 41) For the evaluation of the processability of asymmetric gear ring grinding, the TIF point diameter, EAP point diameter, tooth top chamfer diameter, maximum tooth root bending stress, and fatigue safety factor after fine machining are obtained, and the gear processing processability is finally evaluated; if 31) to 31) are not met, optimization is performed until the requirements are met;

[0091] 42) Carry out quick recalibration and output the processing technology evaluation parameters.

[0092] In summary, the present invention can quickly evaluate and iterate the processability of asymmetric gear ring grinding. At the same time, the performance evaluation range is comprehensive and accurate, and the quantitative results are clear and concise, which can greatly save the processability evaluation time.

[0093] Embodiment 2

[0094] See also Fig. 9 This embodiment provides a device for quickly evaluating the processability of asymmetric planetary gear ring grinding, including:

[0095] Establishing a module for establishing a gear ring meshing model;

[0096] An input parameter module is used to input roughing hob tool parameters;

[0097] Analysis module, used to analyze tool simulation results;

[0098] Output module, used to output process simulation analysis report.

[0099] Embodiment 3

[0100] Fig.10 1 is a block diagram of a terminal provided in an embodiment of the present application, and the terminal may be a terminal in the above embodiment. The terminal may be a portable mobile terminal, such as a smart phone or a tablet computer. The terminal may also be referred to as a user device, a portable terminal, or other names.

[0101] Typically, the terminal includes: a processor 301 and a memory 302 .

[0102] The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 301 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 301 may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0103] The memory 302 may include one or more computer-readable storage media, which may be tangible and non-transitory. The memory 302 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 302 is used to store at least one instruction, which is used to be executed by the processor 301 to implement a method for rapid assessment of the processability of asymmetric planetary gear ring grinding provided in the present application.

[0104] In some embodiments, the terminal may further include: a peripheral device interface 303 and at least one peripheral device. Specifically, the peripheral device includes: at least one of a radio frequency circuit 304 , a touch display screen 305 , a camera 306 , an audio circuit 307 , a positioning component 308 and a power supply 309 .

[0105] The peripheral device interface 303 may be used to connect at least one peripheral device related to I / O (Input / Output) to the processor 301 and the memory 302. In some embodiments, the processor 301, the memory 302, and the peripheral device interface 303 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 301, the memory 302, and the peripheral device interface 303 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

[0106] The radio frequency circuit 304 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 304 communicates with the communication network and other communication devices through electromagnetic signals. The radio frequency circuit 304 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the radio frequency circuit 304 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, and the like. The radio frequency circuit 304 can communicate with other terminals through at least one wireless communication protocol. The wireless communication protocol includes but is not limited to: the World Wide Web, a metropolitan area network, an intranet, various generations of mobile communication networks (2G, 3G, 4G and 5G), a wireless local area network and / or a WiFi (Wireless Fidelity) network. In some embodiments, the radio frequency circuit 304 may also include circuits related to NFC (Near Field Communication), which is not limited in this application.

[0107] The touch display screen 305 is used to display the UI (User Interface). The UI may include graphics, text, icons, videos and any combination thereof. The touch display screen 305 also has the ability to collect touch signals on the surface or above the surface of the touch display screen 305. The touch signal can be input to the processor 301 as a control signal for processing. The touch display screen 305 is used to provide virtual buttons and / or virtual keyboards, also known as soft buttons and / or soft keyboards. In some embodiments, the touch display screen 305 can be one, and the front panel of the terminal is set; in other embodiments, the touch display screen 305 can be at least two, which are respectively set on different surfaces of the terminal or are folded; in some other embodiments, the touch display screen 305 can be a flexible display screen, which is set on the curved surface or folded surface of the terminal. Even, the touch display screen 305 can also be set to a non-rectangular irregular shape, that is, a special-shaped screen. The touch display screen 305 can be made of materials such as LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode, organic light-emitting diode).

[0108] The camera assembly 306 is used to capture images or videos. Optionally, the camera assembly 306 includes a front camera and a rear camera. Typically, the front camera is used to realize video calls or selfies, and the rear camera is used to realize the shooting of photos or videos. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth of field camera, and a wide-angle camera, so as to realize the fusion of the main camera and the depth of field camera to realize the background blur function, and the fusion of the main camera and the wide-angle camera to realize panoramic shooting and VR (Virtual Reality) shooting functions. In some embodiments, the camera assembly 306 may also include a flash. The flash can be a monochrome temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cold light flash, which can be used for light compensation at different color temperatures.

[0109] The audio circuit 307 is used to provide an audio interface between the user and the terminal. The audio circuit 307 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, and convert the sound waves into electrical signals and input them into the processor 301 for processing, or input them into the radio frequency circuit 304 to achieve voice communication. For the purpose of stereo acquisition or noise reduction, there may be multiple microphones, which are respectively arranged at different parts of the terminal. The microphone may also be an array microphone or an omnidirectional acquisition microphone. The speaker is used to convert the electrical signal from the processor 301 or the radio frequency circuit 304 into sound waves. The speaker may be a traditional film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert the electrical signal into sound waves audible to humans, but also convert the electrical signal into sound waves inaudible to humans for purposes such as ranging. In some embodiments, the audio circuit 307 may also include a headphone jack.

[0110] The positioning component 308 is used to locate the current geographical location of the terminal to implement navigation or LBS (Location Based Service). The positioning component 308 can be a positioning component based on the US GPS (Global Positioning System) or China's Beidou system.

[0111] The power supply 309 is used to power various components in the terminal. The power supply 309 can be an alternating current, a direct current, a disposable battery, or a rechargeable battery. When the power supply 309 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery charged through a wired line, and a wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0112] Those skilled in the art will understand that Fig.10 The structure shown in the figure does not constitute a limitation on the terminal, and may include more or less components than those shown in the figure, or combine certain components, or adopt a different component arrangement.

[0113] Embodiment 4

[0114] In an exemplary embodiment, a computer-readable storage medium is also provided, on which a computer program is stored. When the program is executed by a processor, a method for quickly evaluating the processability of grinding teeth of an asymmetric planetary gear ring is implemented as provided in all the inventive embodiments of the present application.

[0115] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or device.

[0116] Computer-readable signal media may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0117] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0118] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0119] Embodiment 5

[0120] In an exemplary embodiment, an application product is also provided, including one or more instructions, which can be executed by the processor 301 of the above-mentioned device to complete the above-mentioned method for rapid assessment of the processability of grinding teeth of an asymmetric planetary gear ring.

[0121] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and implementation mode. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A method for rapid assessment of the processability of asymmetric planetary gear ring grinding, characterized in that: The following steps are involved: Step 1: Establish the gear ring meshing model; Step 2: Input rough machining hob tool parameters; Step 3: Analyze the tool simulation results; Step 4: Output process simulation analysis report.

2. The method for rapid assessment of the processability of asymmetric planetary gear ring grinding according to claim 1, characterized in that: The specific method of step one is as follows: 11) The gear ring is divided into a positive drive tooth surface gear meshing part, a reverse drive tooth surface gear meshing part and a gear wheel body part according to its structure; 12) The positive drive tooth surface gear meshing part, the reverse drive tooth surface gear meshing part and the gear wheel body part are all modeled parametrically.

3. The method for rapid assessment of the processability of asymmetric planetary gear ring grinding according to claim 1, characterized in that: The specific method of step 2 is as follows: 21) Tool parameter input page creation, including setting tool simulation module, determining the gear ring to be pre-calibrated, selecting gear hobbing process for rough machining, and selecting worm grinding process for fine machining; 22) Input hob prop parameters; 23) Confirm the worm grinding wheel parameters.

4. The method for rapid assessment of the processability of asymmetric planetary gear ring grinding according to claim 3, characterized in that: The specific method of step 22) is as follows: 221) Enter the hob tool parameter editing page and create a new hob; 222) Input the hob parameters in the property editing bar according to the hob drawing, so that the hob simulation diagram is completely consistent with the drawing; 223) The hob parameter input specifically includes three parts. The first part is the input of the hob macro-size parameters, including the tool end correction distance, tool effective length, tool total length, tool groove number, tool rotation direction, and tool tooth top diameter; the second part is the input of the hob normal tooth shape parameters, including the tool tooth top height, tool module, tool normal tooth pitch, tool normal pressure angle, tool normal tooth thickness, tool half tooth top modification height, tool half tooth top pressure angle, and tool full tooth height; the third part is the input of the hob head shape parameters, including the blade height, head fillet radius, head protrusion length, head angle, and head height.

5. The method for rapid assessment of the processability of asymmetric planetary gear ring grinding according to claim 3, characterized in that: The specific method of step 23) is as follows: 231) Edit the parameters of the worm grinding wheel and create a new worm grinding wheel; 232) Input the grinding wheel parameters in the property editing bar according to the grinding wheel tooth profile diagram, so that the grinding wheel simulation diagram is completely consistent with the grinding wheel tooth profile diagram; 233) Input the grinding wheel parameters according to the grinding wheel normal tooth profile drawing, which include grinding wheel tooth top height, grinding wheel normal tooth pitch, grinding wheel normal pressure angle, grinding wheel normal tooth thickness and grinding wheel cutter head width.

6. The method for rapid assessment of the processability of asymmetric planetary gear ring grinding according to claim 1, characterized in that: The specific method of step three is as follows: 31) Check the tooth top chamfer size: confirm that the tooth top chamfer after grinding meets the drawing requirements, that is, the chamfers on both sides are 0.25mm~0.35mm; 32) Check of tooth top circle diameter: After fine machining, the tooth top circle diameter meets the design requirements; 33) Check the tooth root arc diameter: the tooth root arc diameter after fine machining meets the design requirements; 34) Check whether the tooth root TIF point exceeds the check: the actual involute point diameter of the gear after fine machining is smaller than the involute evaluation starting point diameter; 35) Check the tooth root digging condition: smooth transition between the involute tooth surface and the tooth root arc, no convexity or step defects are allowed, and the finished product root digging amount is ≤0.05; 36) Gear bending fatigue strength verification: The actual fatigue strength safety factor of the precision-machined gear is greater than the design safety factor or less than 0.5 of the design safety factor.

7. A method for rapid assessment of the processability of asymmetric planetary gear ring grinding according to claim 6, characterized in that: The specific method of step 4 is as follows: 41) For the evaluation of the processability of asymmetric gear ring grinding, the TIF point diameter, EAP point diameter, tooth top chamfer diameter, maximum tooth root bending stress, and fatigue safety factor after fine machining are obtained, and the gear processing processability is finally evaluated; if 31) to 31) are not met, optimization is performed until the requirements are met; 42) Carry out quick recalibration and output the processing technology evaluation parameters.

8. A device for rapid assessment of the processability of asymmetric planetary gear ring grinding, characterized in that: include: Establishing a module for establishing a gear ring meshing model; An input parameter module is used to input roughing hob tool parameters; Analysis module, used to analyze tool simulation results; Output module, used to output process simulation analysis report.

9. A terminal, characterized in that: include: one or more processors; a memory for storing the one or more processor-executable instructions; Wherein, the one or more processors are configured to: Execute a method for rapid assessment of the processability of asymmetric planetary gear ring grinding as described in any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium, characterized in that: When the instructions in the storage medium are executed by the processor of the terminal, the terminal is enabled to execute the method for rapid assessment of the processability of asymmetric planetary gear ring grinding as described in any one of claims 1 to 7.

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