CN-117733645-B - Manufacturing process optimization method and system of vortex plate

CN117733645BCN 117733645 BCN117733645 BCN 117733645BCN-117733645-B

Abstract

The invention discloses a method and a system for optimizing a manufacturing process of a vortex disk, and relates to the technical field of intelligent manufacturing, wherein the method comprises the steps of selecting an initial processing track through a test database according to design parameters of a target workpiece, combining a digital twin model, performing vortex disk processing simulation, and adjusting the initial processing track according to simulation test results to obtain a first optimized processing track; and constructing a track optimizing function, combining the plurality of alternative processing tracks, optimizing the processing tracks to obtain an optimal processing track, and carrying out vortex disk processing production. The invention solves the technical problems of cutter vibration caused by unreasonable design of the machining track of the vortex plate in the prior art, and influences the quality of a workpiece and the service life of the cutter, and achieves the technical effects of improving the quality of the workpiece and reducing the abrasion of the cutter by optimizing the machining track of the vortex plate and controlling the vibration amplitude of the cutter in the cutting process.

Inventors

YAN TINGTING
WU YONGZHEN

Assignees

苏州众捷汽车零部件股份有限公司

Dates

Publication Date: 20260505
Application Date: 20231206

Claims (4)

1. A method of optimizing a manufacturing process of a scroll, the method comprising: collecting target workpiece design parameters, and selecting an initial processing track through a test database according to the target workpiece design parameters, wherein the initial processing track comprises a plurality of sections of sub-tracks, and the plurality of sections of sub-tracks have different cutting speeds; Based on the initial processing track, combining a digital twin model to perform vortex disk processing simulation, and obtaining a simulation test result; according to the simulation test result, adjusting an initial processing track to obtain a first optimized processing track; repeating the machining simulation and the machining track adjustment by referring to the first optimized machining track, and screening to obtain a plurality of alternative machining tracks by combining a cutter vibration data threshold value and a workpiece quality threshold value; constructing a track optimizing function, and combining the plurality of alternative processing tracks to perform processing track optimizing to obtain an optimal processing track; Referring to the optimal processing track, processing and producing the vortex disk; based on the initial processing track, combining a digital twin model to perform vortex disk processing simulation, and obtaining a simulation test result, wherein the method comprises the following steps: the simulation test result comprises cutter vibration data and workpiece quality grades, wherein the cutter vibration data comprises cutter vibration amplitude, cutter vibration frequency and cutter vibration position; the workpiece quality grade comprises a workpiece shape and position size grade and a surface smoothness grade; according to the simulation test result, the initial processing track is adjusted to obtain a first optimized processing track, which comprises the following steps: Acquiring a plurality of track dividing points according to the vibration positions of the cutter; Performing initial processing track segmentation by referring to the track segmentation points to obtain a plurality of sections of new sub-tracks; Adjusting the cutting speed of the new sub-track according to the cutter vibration amplitude, the cutter vibration frequency, the workpiece shape and position size grade and the surface smoothness grade; forming a first optimized machining track by a plurality of sections of new sub-tracks; Wherein, the construction of the track optimizing function comprises: acquiring processing track optimizing parameters including the number of segments, cutting speed, cutter amplitude and workpiece quality grade; based on the processing track optimizing parameters, constructing a track optimizing function for optimizing the processing track, wherein the track optimizing function comprises the following formula: Wherein Q is a function value for evaluating the quality of the processing track, S is the number of sub-tracks, T i is the quality grade of the workpiece of the ith sub-track, C i is the cutter amplitude of the ith sub-track, F i is the cutting speed of the ith sub-track, L i is the length of the ith sub-track, W 1 is a first weight, and W 2 is a second weight, wherein the processing track optimizing is performed by combining the plurality of alternative processing tracks to obtain an optimal processing track, and the method comprises the following steps: Randomly selecting a plurality of first alternative processing tracks based on the plurality of alternative processing tracks, and combining the track optimizing function to calculate and obtain a plurality of first function values; dividing and obtaining a plurality of first superior processing tracks and a plurality of first primary processing tracks according to a plurality of first function values; taking the first superior processing tracks as a clustering center, referring to the first function values, distributing the clustering quantity, and clustering the first superior processing tracks to obtain a first processing track set; in the plurality of first processing track sets, respectively adjusting the first superior processing track according to the plurality of first superior processing tracks to obtain a plurality of second processing track sets; Performing iterative optimization by using the method until reaching the preset optimization times, and obtaining a plurality of final processing track sets; And selecting the processing track with the largest function value in the final processing track set with the largest sum of the function values to output according to the sum of the function values of the final processing track sets, so as to obtain the optimal processing track.
2. The method of claim 1, wherein adjusting the first superior process trajectory within the plurality of first process trajectory sets based on the plurality of first superior process trajectories, respectively, comprises: based on the plurality of first processing track sets, a plurality of first equal processing tracks are used as adjustment directions, and a plurality of first adjustment directions are obtained; Respectively taking the segmentation number and the cutting speed as adjustment step sizes, and combining a plurality of first adjustment directions to adjust each first superior processing track to obtain a plurality of second processing tracks; and calculating a plurality of second function values of the plurality of second processing tracks, comparing and screening with the first processing tracks, updating to obtain a plurality of second superior processing tracks and a plurality of second inferior processing tracks, and obtaining a plurality of second processing track sets.
3. The method of claim 1, wherein performing a vortex disk process with reference to the optimal process trajectory comprises: Collecting initial tool wear data; carrying out a plurality of small-scale entity processing tests according to the optimal processing track to obtain a plurality of entity processing samples, and collecting a plurality of processed cutter abrasion data; performing quality detection on the plurality of entity processing samples to obtain a plurality of sample quality grades; Performing tool wear evaluation according to the initial tool wear data and the plurality of processed tool wear data, and performing sample quality evaluation according to the plurality of sample quality grades to obtain a tool wear evaluation result and a sample quality evaluation result; And calibrating the optimal machining track according to the cutter abrasion evaluation result and the sample quality evaluation result.
4. A process optimization system for manufacturing a scroll, for performing the process optimization method for manufacturing a scroll as claimed in any one of claims 1 to 3, the system comprising: the initial processing track acquisition module is used for acquiring design parameters of a target workpiece, traversing the inspection database according to the design parameters of the target workpiece and selecting an initial processing track, wherein the initial processing track comprises a plurality of sections of sub-tracks, and the sections of sub-tracks have different cutting speeds; the simulation test result acquisition module is used for carrying out vortex disk processing simulation based on the initial processing track and combining a digital twin model to acquire a simulation test result; the first optimized machining track acquisition module is used for adjusting an initial machining track according to the simulation test result to obtain a first optimized machining track; The alternative processing track acquisition module is used for repeatedly performing processing simulation and processing track adjustment by referring to the first optimized processing track, and screening to obtain a plurality of alternative processing tracks by combining a cutter vibration data threshold and a workpiece quality threshold; The optimal processing track acquisition module is used for constructing a track optimizing function, and combining the plurality of alternative processing tracks to perform processing track optimizing to obtain an optimal processing track; and the vortex disc processing and producing module is used for referring to the optimal processing track to process and produce the vortex disc.

Description

Manufacturing process optimization method and system of vortex plate Technical Field The invention relates to the technical field of intelligent manufacturing, in particular to a manufacturing process optimization method and system of a vortex disc. Background The scroll is an important part of a scroll compressor and consists of an movable scroll and a fixed scroll. In the gas compression process, the process is completed by means of mutual matching of the movable disc and the static disc, so that the compression performance can be guaranteed only by keeping higher size consistency and surface smoothness of finished products of the movable disc and the static disc, but most of vortex molded lines of the vortex disc are tangent combinations of one or more sections of curves, and due to curvature change of the molded lines, cutters are easy to cut and shake in the cutting process, and the cutter is fast in abrasion and affects the quality of workpieces. Disclosure of Invention The application provides a method and a system for optimizing a manufacturing process of a vortex plate, which are used for solving the technical problems that in the prior art, vibration of a cutter is caused by unreasonable design of a machining track of the vortex plate, and the quality of a workpiece and the service life of the cutter are influenced. The application provides a manufacturing process optimization method of a vortex disc, which comprises the steps of collecting target workpiece design parameters, selecting an initial machining track according to the target workpiece design parameters through a verification database, wherein the initial machining track comprises a plurality of sections of sub-tracks, the sections of sub-tracks have different cutting speeds, carrying out vortex disc machining simulation based on the initial machining track by combining a digital twin model to obtain a simulation test result, adjusting the initial machining track according to the simulation test result to obtain a first optimized machining track, repeatedly carrying out machining simulation and machining track adjustment by referring to the first optimized machining track, combining a cutter vibration data threshold value and a workpiece quality threshold value, screening to obtain a plurality of alternative machining tracks, constructing a track optimizing function, combining the plurality of alternative machining tracks, carrying out machining track optimizing to obtain an optimal machining track, and carrying out vortex disc machining production by referring to the optimal machining track. The application provides a manufacturing process optimization system of a vortex disc, which comprises an initial processing track acquisition module, a simulation test result acquisition module, a first optimized processing track acquisition module, a candidate processing track acquisition module and a processing track optimization module, wherein the initial processing track acquisition module is used for acquiring design parameters of a target workpiece, traversing a test database to select an initial processing track according to the design parameters of the target workpiece, the initial processing track comprises a plurality of sections of sub-tracks, the sections of sub-tracks have different cutting speeds, the simulation test result acquisition module is used for carrying out vortex disc processing simulation based on the initial processing track and combining with a digital twin model to acquire a simulation test result, the first optimized processing track acquisition module is used for adjusting the initial processing track according to the simulation test result to acquire a first optimized processing track, the candidate processing track acquisition module is used for referring to the first optimized processing track and repeatedly carrying out processing simulation and processing track adjustment and combining with a cutter vibration data threshold and a workpiece quality threshold and screening to acquire a plurality of candidate processing tracks, the optimal processing track acquisition module is used for constructing an optimal track acquisition function and is used for combining with the vortex disc processing production processing track. One or more technical schemes provided by the application have at least the following technical effects or advantages: The application provides a manufacturing process optimization method of a vortex disc, which relates to the technical field of intelligent manufacturing, and comprises the steps of selecting an initial processing track through a design parameter of a target workpiece, performing multiple times of vortex disc processing simulation by combining a digital twin model, adjusting the initial processing track for multiple times according to a simulation test result to obtain multiple alternative processing tracks, optimizing by combining a track optimizing function to obtain an optimal p