CN-122018427-A - Dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining

CN122018427ACN 122018427 ACN122018427 ACN 122018427ACN-122018427-A

Abstract

The invention relates to a dynamic pre-control type digital control system for processing an aviation high-rigidity long shaft deep hole. Relates to the crossing field of aviation precision manufacturing and intelligent control. At present, the existing management and control system focuses on state monitoring and post-adjustment in the processing, lacks the ability of pre-judging deformation trend in advance, relies on a large amount of historical data training for parameter optimization, and is difficult to adapt to the production requirements of small-batch and multi-specification aviation parts. The system integrates the functions of pre-processing deformation pre-judgment, dynamic regulation and control in processing and post-processing quality traceability, realizes accurate sensing, early intervention and closed loop control of the whole process of high-rigidity long-axis deep hole processing through a multi-field coupling digital modeling and small sample learning algorithm, solves the problems of deformation hysteresis monitoring, poor parameter adaptability and large quality fluctuation in the traditional processing, and remarkably improves the precision stability and batch consistency of deep hole processing of aviation key parts.

Inventors

JIN LIN
WANG SHANCHENG
WANG CHANGQING

Assignees

中国航发哈尔滨东安发动机有限公司

Dates

Publication Date: 20260512
Application Date: 20251211

Claims (6)

1. The dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining is characterized by comprising a pre-analysis module before machining, a multi-source real-time sensing module, a dynamic pre-control decision module, an execution adjusting module and a full-chain tracing module, wherein the modules realize real-time interaction and collaborative operation of data through an industrial 5G network; the pre-processing pre-analysis module provides reference parameters and deformation pre-judgment basis for the processing process; the multi-source real-time sensing module captures dynamic data of the whole scene; The dynamic pre-control decision module optimizes and compensates instructions based on data output parameters; The execution adjusting module is used for finishing accurate adjustment of equipment parameters and clamping states; the full-chain traceability module realizes the structured storage and traceability of the processing data.
2. The dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining according to claim 1, wherein the pre-machining pre-analysis module is used for constructing a multi-field coupling digital model comprising a cutting force field, a temperature field and a stress field based on a three-dimensional model of a part, material mechanical parameters and a preset process route, and can pre-judge deformation trends of workpieces at different machining stages and output an initial parameter scheme after inputting historical machining data training.
3. The dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining according to claim 1, wherein the multi-source real-time sensing module deploys a combined sensing unit; The combined sensing unit comprises a distributed strain sensor attached to the axial direction of the workpiece, a dynamic cutting force sensor integrated on the cutter handle and a flow pressure composite sensor arranged on the cutting fluid loop, and can synchronously acquire deformation, cutting load and cooling and lubricating state data.
4. The dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining according to claim 1, wherein a small sample learning model and a deviation correction algorithm are built in the dynamic pre-control decision module; The small sample learning model dynamically optimizes cutting speed and feeding quantity parameters based on the pre-judging result and real-time sensing data of the pre-analyzing module; And the deviation correction algorithm generates a compensation instruction of clamping supporting force and cutting fluid parameters by comparing the deviation of the actually measured deformation with the preset value.
5. The dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining according to claim 1, wherein the execution adjusting module comprises a numerical control parameter adapting unit, a floating clamping control unit and a cutting fluid adjusting and controlling unit, and the processing parameter self-adaptive adjustment, the clamping force dynamic compensation and the cooling lubrication accurate supply can be respectively realized in response to a decision instruction.
6. The dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining according to claim 1, wherein the full-chain traceability module is used for storing pre-machining pre-analysis reports, in-machining perception data, adjustment records and post-machining precision detection results in an associated mode, generating a machining file containing two-dimension codes, and supporting full-flow data traceability and process optimization analysis.

Description

Dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining Technical Field The invention belongs to the field of aviation precision manufacturing and intelligent control intersection, and mainly relates to a dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining. Background The main shaft of the aeroengine, the long shaft of the transmission system and other key parts are made of high-strength alloy materials, the high-rigidity characteristic is achieved, and the machining precision of the deep hole structure directly influences the operation safety of equipment. When the part is processed, the deformation and the dimensional deviation are easy to generate due to the influence of factors such as large length-diameter ratio, concentrated cutting force, closed processing area and the like, deformation is difficult to capture in real time due to the concealment of deep hole processing, the adjustment is often carried out after the problem occurs, and the scrapping risk of the part is increased. The existing control system focuses on state monitoring and post-adjustment in processing, lacks the ability of pre-judging deformation trend in advance, relies on a large amount of historical data training for parameter optimization, and is difficult to adapt to the production requirements of small-batch and multi-specification aviation parts. Meanwhile, the clamping force and the cutting parameters are regulated and controlled independently, so that cooperative compensation cannot be formed, and complex deformation is difficult to effectively inhibit. Therefore, an intelligent control system with pre-control capability and adaptation to small sample scenes is needed to meet the high-quality processing requirements. Disclosure of Invention In order to solve the problems, the invention aims to provide a dynamic pre-control type digital control system for processing the long shaft deep hole with high rigidity in aviation. The problem that the existing management and control system focuses on state monitoring and post-regulation in processing is solved through a full-flow link of pre-analysis, real-time sensing and dynamic regulation. , A dynamic pre-control type digital control system for aviation high-rigidity long-axis deep hole machining comprises a pre-analysis module before machining, a multi-source real-time sensing module, a dynamic pre-control decision module, an execution adjusting module and a full-chain tracing module, wherein the modules realize real-time interaction and collaborative operation of data through an industrial 5G network; the pre-processing pre-analysis module provides reference parameters and deformation pre-judgment basis for the processing process; the multi-source real-time perception module captures the dynamic data of the full scene, The dynamic pre-control decision module optimizes and compensates instructions based on data output parameters, The execution adjusting module is used for finishing accurate adjustment of equipment parameters and clamping states; the full-chain traceability module realizes the structured storage and traceability of the processing data. Furthermore, the pre-processing pre-analysis module builds a multi-field coupling digital model comprising a cutting force field, a temperature field and a stress field based on the three-dimensional model of the part, the material mechanical parameters and the preset process route, and can pre-judge the deformation trend of the workpiece in different processing stages and output an initial parameter scheme after inputting historical processing data training. Further, the multi-source real-time sensing module deploys a combined sensing unit; The combined sensing unit comprises a distributed strain sensor attached to the axial direction of the workpiece, a dynamic cutting force sensor integrated on the cutter handle and a flow pressure composite sensor arranged on the cutting fluid loop, and can synchronously acquire deformation, cutting load and cooling and lubricating state data. Further, the dynamic pre-control decision module is internally provided with a small sample learning model and a deviation correction algorithm; The small sample learning model dynamically optimizes cutting speed and feeding quantity parameters based on the pre-judging result and real-time sensing data of the pre-analyzing module; And the deviation correction algorithm generates a compensation instruction of clamping supporting force and cutting fluid parameters by comparing the deviation of the actually measured deformation with the preset value. Furthermore, the execution regulation module comprises a numerical control parameter adaptation unit, a floating clamping control unit and a cutting fluid regulation and control unit, and can respectively respond to decision instructions to realize self-adaptive adjustment of processing parameters, dynamic compensa