CN112192250A - Information acquisition and fusion device and method based on thermal design of spindle system - Google Patents

Information acquisition and fusion device and method based on thermal design of spindle system Download PDF

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CN112192250A
CN112192250A CN202011126852.7A CN202011126852A CN112192250A CN 112192250 A CN112192250 A CN 112192250A CN 202011126852 A CN202011126852 A CN 202011126852A CN 112192250 A CN112192250 A CN 112192250A
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information
thermal
data
sensor unit
thermal design
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邓小雷
丁小康
林晓亮
郭术鹏
师启博
郑嘉聪
王建臣
郑勇
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Zhejiang Yonglida Cnc Machine Tool Co ltd
Quzhou University
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Zhejiang Yonglida Cnc Machine Tool Co ltd
Quzhou University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
    • G06F2119/08—Thermal analysis or thermal optimisation

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Abstract

本发明属于信息采集融合技术领域，具体公开了一种基于主轴热设计的信息采集融合装置及其方法，包括设备箱和检测模块，所述设备箱的上方固定连接有支撑杆，且支撑杆的上方固定连接有主机，所述检测模块的下方设置有数据整合单元，且检测模块位于主机的右侧，所述支撑柱的右侧设置有键盘，且键盘的右侧设置有鼠标。该基于主轴热设计的信息采集融合装置及其方法，与现有的普通信息采集融合装置及其方法相比，该装置在使用的过程中能很好对电气控制零部件进行夹持，在长期使用的时候不容易造成电气控制零部件发生移位，不会发生线路脱落的情况，同时可以很好的对信息收集过程中经常使用的仪器进行集中的收集。

Figure 202011126852

The invention belongs to the technical field of information collection and fusion, and specifically discloses an information collection and fusion device based on the thermal design of a spindle and a method thereof, comprising an equipment box and a detection module, wherein a support rod is fixedly connected above the equipment box, and the support rod A host is fixedly connected above, a data integration unit is arranged below the detection module, and the detection module is located on the right side of the host, a keyboard is arranged on the right side of the support column, and a mouse is arranged on the right side of the keyboard. The information acquisition and fusion device and method based on the thermal design of the main shaft, compared with the existing common information acquisition and fusion device and the method, can well clamp the electrical control parts in the process of use, and can be used for a long time in the long-term. When used, it is not easy to cause the electrical control parts to shift, and the line will not fall off, and at the same time, it can well collect the instruments often used in the information collection process.

Figure 202011126852

Description

Information acquisition and fusion device and method based on thermal design of spindle system
Technical Field
The invention relates to the technical field of information acquisition and fusion, in particular to an information acquisition and fusion device based on a main shaft thermal design and a method thereof.
Background
The main shaft is a shaft which receives power from an engine or a motor and transmits the power to other parts, is also called as an optical axis, is mainly used for supporting transmission parts such as gears and belt wheels in a machine and transmitting motion and torque, and is a machine tool main shaft which is used for driving a workpiece or a cutter to rotate on a machine tool and generally consists of a main shaft, a bearing, a transmission part (the gear or the belt wheel) and the like to form a main shaft system; the spindle system is a key functional part of a machine tool and thermal-state characteristics of the key functional part, determines the cutting speed and the machining precision of the machine tool to a great extent, and is the most important factor influencing the improvement of the precision of the machine tool, so that the influence of reducing the thermal error of the machine tool in the design stage of the spindle system is very important for improving the thermal-state characteristics of the machine tool, and a plurality of scholars develop research and exploration aiming at the thermal design method of the spindle system in China and in the last century.
The prior patent (public number: CN108226949A) discloses an information fusion device for a visible light and middle and far infrared light multi-lens multi-sensor, which comprises an infrared sensor, a visible light sensor and a circuit board, wherein a control and signal processing integrated circuit is integrated on the circuit board, and the infrared sensor and the visible light sensor are respectively connected through the signal processing integrated control and signal processing integrated circuit; the image information collected by the infrared lens and the visible light lens is transmitted to the control and signal processing integrated circuit through the infrared sensor and the visible light sensor respectively, the control and signal processing integrated circuit carries out depth calculation on the image information collected by the infrared lens and the visible light lens respectively, and calculation results are fused. The following problems in the prior art are found in the process of realizing the scheme, and the problems are not well solved: 1. the device can not well clamp the electric control parts in the using process, and the electric control parts are easy to displace and the circuit falls off when being used for a long time; 2. the device is at the in-process that uses, and the instrument of often using carries out concentrated collection to the information collection in-process that can not be fine causes to lose easily, can not be fine satisfies people's user demand, to above-mentioned condition, carries out technological innovation on current information acquisition fusion device and method basis.
Disclosure of Invention
The invention aims to provide an information acquisition and fusion device based on spindle thermal design and a method thereof, aiming at solving the following defects in the background technology: 1. the device can not well clamp the electric control parts in the using process, and the electric control parts are easy to displace and the circuit falls off when being used for a long time; 2. the device is at the in-process that uses, and the collection that concentrates is carried out to the instrument of frequently using among the information collection process that can not be fine, causes easily to lose, can not be fine satisfies people's user demand.
In order to achieve the purpose, the invention adopts the following technical scheme:
an information acquisition and fusion device based on spindle thermal design and a method thereof comprise an equipment box and a detection module, wherein a support rod is fixedly connected above the equipment box, a host is fixedly connected above the support rod, a data integration unit is arranged below the detection module, the detection module is positioned on the right side of the host, a keyboard is arranged on the right side of the support rod, a mouse is arranged on the right side of the keyboard, a partition plate is fixedly connected inside the equipment box, a slide rail is fixedly connected above the partition plate, a placing box is arranged above the slide rail, silica gel pads are arranged on the left side and the right side of the placing box, a controller unit is arranged inside the placing box, a reader-writer unit is arranged on the right side of the controller unit, an information acquisition unit is arranged above the reader-writer unit, and an information fusion module is arranged on the left side of the information acquisition unit, a clamping plate is bonded on one side of the silica gel pad, which is far away from the center line of the placing box, a sliding block is fixedly connected below the clamping plate, a connecting block is fixedly connected on the left side of the clamping plate, a first connecting rod is hinged on the left side of the connecting block, a second connecting rod is arranged below the first connecting rod, an electric telescopic rod is hinged on the right side of the second connecting rod, a supporting plate is arranged on the right side of the electric telescopic rod, a fixing plate is arranged on the right side of the supporting plate, a supporting cabinet is fixedly connected on the left side and the right side of the equipment box, a drawer is movably connected inside the supporting cabinet, connecting grooves are arranged on the left side and the right side of the drawer, connecting keys are slidably connected inside the connecting grooves, a connecting plate is arranged below the equipment box, a hydraulic rod is fixedly connected at the front end of the, the front end of the equipment box is hinged with a folding door, and an observation window is fixedly connected inside the folding door.
Furthermore, the detection module comprises a laser displacement sensor unit, a temperature sensor unit, a vibration sensor unit, an electromagnetic sensor unit, a visual sensor unit and other sensor units, wherein the laser displacement sensor unit is electrically connected with the temperature sensor unit through a lead, the temperature sensor unit is electrically connected with the vibration sensor unit through a lead, the vibration sensor unit is electrically connected with the electromagnetic sensor unit through a lead, the electromagnetic sensor unit is electrically connected with the visual sensor unit through a lead, the visual sensor unit is electrically connected with other sensor units through a lead, the laser displacement sensor unit, the temperature sensor unit, the vibration sensor unit, the electromagnetic sensor unit, the visual sensor unit and other sensor units are electrically connected in series through leads, and the other sensor units are electrically connected with the data integration unit through leads.
Furthermore, the horizontal lines of the sliding rails are parallel to the horizontal lines of the electric telescopic rods, and the electric telescopic rods are symmetrically distributed on the left side and the right side above the partition plate.
Further, be closely laminating between the right side surface of silica gel pad and the left side surface of splint, and coincide mutually between the axis of splint and the axis of slider.
Furthermore, the clamping plate forms a sliding structure through the sliding block and the sliding rail, and the external size of the sliding block is matched with the internal size of the sliding rail.
Furthermore, the electric telescopic rod penetrates through the inner part of the supporting plate, and the horizontal line of the electric telescopic rod is vertical to the outer wall of the fixing plate.
Furthermore, the central axis of the fixing plate is perpendicular to the upper surface of the partition plate, and the lower surface of the fixing plate is tightly attached to the upper surface of the partition plate.
Furthermore, the drawer forms a sliding structure through the connection key and the connection groove, and the external dimension of the connection key is matched with the internal dimension of the connection groove.
Furthermore, the hydraulic rods are symmetrically distributed on the upper side and the lower side of the rear end of the support column, and the horizontal lines of the hydraulic rods are perpendicular to the outer wall of the support column.
Further, coincide between the axis of support column and the axis of gyro wheel mutually, and parallel between the axis of support column and the axis of connecting plate.
Further, the specific operation steps are as follows:
s1, connecting the temperature sensor and the laser displacement sensor with the data integration unit and the detection module, checking whether the circuit is connected firmly, wherein the thermal state characteristic of the machine tool spindle system is influenced by multiple sources and multiple types of factors, reasonably planning the detection and acquisition of the information to be detected inside and outside the machine tool by combining the prior summary and theoretical analysis of the thermal error generation mechanism of the machine tool spindle system, building an information acquisition platform, and accurately and comprehensively acquiring the data of different detection types and sampling frequency bands of different sites, time and channels of information such as mechanics, acoustics, thermotics, vibration and the like in the operation process of the machine tool. Based on signal acquisition data, a main shaft operation information acquisition and processing model is established by adopting LabVIEW and MATLAB, continuous cycle synchronous acquisition, separation and accurate identification and analysis of information data such as vibration signals, sound pressure signals, cutting force signals, temperature signals, workpiece machining precision and the like are completed, and the requirements of real-time performance and synchronism of information acquisition are met;
s2, arranging the other end of the sensor beside a machine tool spindle system to ensure that the sensor can detect spindle data in real time, carrying out data analysis on the acquired information, carrying out data detection and data cleaning according to the analysis result, integrating the cleaned data and integrating the data, establishing a data-level basic information data set through a Joint Directors of Laboratories (JDL) model, converting the integrated data into a form suitable for mining on the basis, mining potential useful information by using an intelligent technology, and storing the potential useful information in the basic information data set again for data updating, thereby laying a foundation for information feature extraction and screening, core variable derivation and weight solving and establishing an information fusion model;
s3, a switch is turned on, a temperature sensor and a laser displacement sensor record data generated by a main shaft when the main shaft runs, the temperature sensor amplifies and converts the information and then transmits the information to a reader-writer unit, the laser displacement sensor amplifies and converts the information and then transmits the information to a controller unit, a basic information data set is large in data scale and multiple in information types, the basic information data set comprises direct variables, indirect variables, suspected variables, redundant variables, interference quantities and the like which cause thermal errors, the correlation between the direct variables and the thermal errors cannot be directly reflected, the original information needs to be subjected to feature extraction and screening, the original information is analyzed and identified through a trained neural network, core variables are derived, a core variable weight is obtained, thermal design information is established through a feature set (RBF) model, and the process description is approximately as follows:
1) feature extraction: and extracting the features of the basic information data set by adopting a feature extraction method such as overall empirical mode decomposition, gray level co-occurrence matrix and the like in time domain, frequency domain and time-frequency domain analysis.
2) And (3) feature screening: the data volume of the feature set is huge, and the feature quantities of all information have correlation, so that the subsequent model establishment has higher complexity, and a thermal design decision error is caused. The Pearson correlation coefficient method is utilized to screen the characteristic information by taking the correlation between the characteristic quantity and the thermal state characteristic as the basis, namely
Figure RE-GDA0002789016370000051
Wherein T is a characteristic correlation coefficient, N is the number of characteristic values in the characteristic set, i is a characteristic value, and xiIs a thermal state characteristic index quantity.
3) Core variable derivation and weight solving: and analyzing and identifying the characteristic information through a neural network based on the characteristics of the thermal state characteristic identification target, deriving a thermal state characteristic core variable, and solving a core variable weight to obtain a characteristic set of the multi-source heterogeneous information data. Wherein, a basic probability distribution function m of a core variable j to a target A is utilizedj(A) The weight solution can be expressed as
Figure RE-GDA0002789016370000052
In the formula, CjIs the correlation coefficient of the core variable to the target thermal state characteristic quantity A, N is the core variable quantity, K is the correction coefficient, RjTo correspond to the coefficient of reliability of the sensor, WjAs an environmental weighting factor, alpha, of the sensorjIs the maximum correlation coefficient, beta, of the sensorjAssigning a value to the sensor correlation;
s4, reading and writing information by the reader-writer unit (13), and the controller unit
(12) The information is analyzed and processed, the induced evidence of the thermal error of the machine tool spindle system is obtained based on the core variable and the basic probability distribution function, and the weighted DS evidence fusion model is established by utilizing the evidence theory, so that the establishment of the multi-source heterogeneous information decision-level fusion model is realized. The probability distribution function m of two evidences in the same space theta for the thermal state characteristic targets A and B is assumedi， m2Then the confidence level that it fuses to the new hypothesis θ can be calculated, solving the equation as follows:
Figure RE-GDA0002789016370000061
Figure RE-GDA0002789016370000062
in the formula, k is a conflict factor between two evidences, and a multi-source heterogeneous information fusion model is established;
s5, the processed information is transmitted to an information acquisition unit, the information acquisition unit collects and classifies the transmitted information, based on the establishment of a multi-source heterogeneous information coupling model, the thermal state characteristic distribution characteristics of the spindle system are obtained around the multi-field boundaries of a force field, a sound field, a thermal field, an electromagnetic field and the like of the spindle system, relevant parameters such as a design area, material properties, thermal load conditions and the like are defined by taking an induced evidence as a constraint condition, the machine tool spindle system is subjected to fully-constrained thermal design solution, the optimal solution of the thermal state characteristic is obtained, thermal design parameters are further obtained, a thermal design database is established, and the purpose of obtaining the thermal design parameters by establishing the multi-source heterogeneous information fusion model to drive the digital modeling of the thermal design is achieved;
and S6, transmitting the collected information to the information fusion module again, fusing the processed information by the information fusion module, processing information data with complexity and diversity, finally transmitting the data to a host for a user to analyze and record the information, building a multi-source heterogeneous information acquisition separation and identification analysis platform, and perfecting the configuration of software and hardware of the system, including the selection of a sensor and a data acquisition card, the signal input range, the sampling frequency, the signal connection mode, the wiring mode of the acquisition card and the like. The design of a software system is completed, under the LabVIEW software environment, the programming of a signal acquisition program is completed according to set sampling time, sampling frequency, sampling channels and the like, a Matlab program design data acquisition module, a data analysis module and the like are called, the establishment of a multi-source heterogeneous information fusion model is performed, the acquisition and processing of multi-source heterogeneous information of a machine tool are completed, thermal design data are obtained, and the multi-field multi-body full-constraint intelligent thermal design of a spindle system is realized. By means of the test platform, analysis and test research on the thermal dynamic characteristics of the machine tool spindle system can be developed, validity and accuracy verification can be carried out on the thermal design scheme, and correction of the thermal design method can be further completed.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the sliding rail and the electric telescopic rod are kept horizontal through the partition plate, the sliding rail and the electric telescopic rod, so that the clamping plate can be ensured to be in full contact with the placing box when the placing box is fixed by the clamping plate, no gap is formed in the middle, the situation that only part of the placing box is fixed is avoided, meanwhile, the electric telescopic rods are symmetrically arranged at the left side and the right side above the partition plate, the placing box can be fixed simultaneously under the condition that equipment is intact, and the fixing effect cannot be influenced when the electric telescopic rod at one side is damaged;
(2) according to the invention, through the silica gel pad, the clamping plate and the sliding block, on one hand, the silica gel pad can increase the friction force between the clamping plate and the placing box, so that the silica gel pad can not easily slide in the fixing process and has good heat exchange performance, on the other hand, the extrusion force between the clamping plate and the placing box can be buffered, the damage is avoided, and meanwhile, the sliding block and the sliding rail can be stable and can not shake when sliding;
(3) according to the invention, through the supporting plate and the fixing plate, the supporting plate can support the electric telescopic rod, so that the electric telescopic rod is prevented from falling off after being collided accidentally due to large transverse length, and meanwhile, the fixing plate can fix the electric telescopic rod and is connected through the bolt during fixing, so that a user can conveniently disassemble and maintain the electric telescopic rod;
(4) according to the drawer type measuring device, the drawer increases the storage space of the device through the drawer, the connecting groove and the connecting key, and measuring tools and parts which are required in daily life can be stored in a centralized manner during working; trouble when avoiding looking for, the drawer is connected fixedly through the cooperation between connection key and the spread groove simultaneously, and convenient to use person stores up article and takes.
(5) According to the invention, through the hydraulic rod, the support column and the roller, the hydraulic rod can move the support column and the cushion above the support column back and forth, so that the operation of a user is convenient, the cushion can be stored when the cushion is not used, meanwhile, the roller can realize the relative sliding between the support column and the ground, and the use requirements of people can be well met.
(6) According to the invention, through the arrangement of the laser displacement sensor unit, the temperature sensor unit, the vibration sensor unit, the electromagnetic sensor unit, the visual sensor unit and other sensor units, when the device collects thermal design information of the spindle, each sensor in the device can accurately read each data of the spindle, so that the use accuracy of the device is improved, and a user can select a sensor which needs to be detected correspondingly according to different design requirements of the spindle, fix the sensor on other sensor units, place other sensor units in the detection module, perform corresponding detection tasks on the spindle, and indirectly improve the flexibility of the device in use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic sectional front view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a side view of the roller of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 5 is a schematic view of the process flow structure of the present invention;
FIG. 6 is a schematic diagram of a process for establishing a multi-source heterogeneous information fusion model according to the present invention.
The list of components represented by the various reference numbers in the figures is as follows: 1-equipment box; 2-a support rod; 3-a host; 4-a detection module; 401-laser displacement sensor unit; 402-a temperature sensor unit; 403-a vibration sensor unit; 404-an electromagnetic sensor unit; 405-a vision sensor unit; 406-other sensor units; 5-a data integration unit; 6-a keyboard; 7-a mouse; 8-a separator; 9-a slide rail; 10-placing a box; 11-silica gel pad; 12-a controller module; 13-a reader-writer unit; 14-an information acquisition unit; 15-an information fusion module; 16-a splint; 17-a slide block; 18-connecting blocks; 19-a first link; 20-a second link; 21-an electric telescopic rod; 22-a support plate; 23-fixing the plate; 24-a support cabinet; 25-a drawer; 26-a connecting trough; 27-a connecting bond; 28-a connecting plate; 29-hydraulic rod; 30-a support column; 31-a roller; 32-folding doors; 33-observation window.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, an information collecting and fusing apparatus based on spindle thermal design and method thereof includes an equipment box 1 and a detection module 4, a support rod 2 is fixedly connected to the upper portion of the equipment box 1, a host 3 is fixedly connected to the upper portion of the support rod 2, a data integration unit 5 is disposed below the detection module 4, the detection module 4 is located on the right side of the host 3, the detection module 4 includes a laser displacement sensor unit 401, a temperature sensor unit 402, a vibration sensor unit 403, an electromagnetic sensor unit 404, a visual sensor unit 405 and other sensor units 406, the laser displacement sensor unit 401 is electrically connected to the temperature sensor unit 402 through a wire, the temperature sensor unit 402 is electrically connected to the vibration sensor unit 403 through a wire, the vibration sensor unit 403 is electrically connected to the electromagnetic sensor unit 404 through a wire, the electromagnetic sensor unit 404 is electrically connected with the visual sensor unit 405 through a lead, the visual sensor unit 405 is electrically connected with other sensor units 406 through a lead, the laser displacement sensor unit 401, the temperature sensor unit 402, the vibration sensor unit 403, the electromagnetic sensor unit 404, the visual sensor unit 405 and other sensor units 406 are electrically connected in series through leads, other sensor units 406 are electrically connected with the data integration unit 5 through leads in an output manner, and through the arrangement of the laser displacement sensor unit 401, the temperature sensor unit 402, the vibration sensor unit 403, the electromagnetic sensor unit 404, the visual sensor unit 405 and other sensor units 406, when the device collects thermal design information of the spindle, each sensor in the device can accurately read each data of the spindle, the use accuracy of the device is improved, a user can select a sensor which needs to be detected correspondingly according to different main shaft design requirements, the sensor is fixed on other sensor units 406, the other sensor units 406 are placed in the detection module 4, corresponding detection tasks are carried out on the main shaft, and the flexibility of the device in use is indirectly improved;
a keyboard 6 is arranged on the right side of the supporting column 2, a mouse 7 is arranged on the right side of the keyboard 6, a clapboard 8 is fixedly connected inside the equipment box 1, and the upper part of the clapboard 8 is fixedly connected with a slide rail 9, the horizontal line of the slide rail 9 is parallel to the horizontal line of the electric telescopic rod 21, the electric telescopic rods 21 are symmetrically distributed at the left side and the right side above the partition plate 8, the sliding rail 9 and the electric telescopic rods 21 are kept horizontal, when the clamping plate 16 is used for fixing the placing box 10, the clamping plate 16 can be ensured to be fully contacted with the placing box 10, no gap is generated in the middle, only the local part of the placing box 10 is prevented from being fixed, meanwhile, the electric telescopic rods 21 are symmetrically arranged at the left side and the right side above the partition plate 8, so that the placing box 10 can be fixed under the condition that equipment is intact, and the fixing effect cannot be influenced when the electric telescopic rod 21 at one side is damaged;
a placing box 10 is arranged above the sliding rail 9, silicone pads 11 are arranged on the left side and the right side of the placing box 10, the right side surface of the silicone pad 11 is tightly attached to the left side surface of a clamping plate 16, the central axis of the clamping plate 16 is coincident with the central axis of a sliding block 17, the silicone pads 11 can increase the friction force between the clamping plate 16 and the placing box 10 on one hand, so that the silicon pad cannot easily slide when being fixed and has good heat exchange performance, on the other hand, the pressing force between the clamping plate 16 and the placing box 10 can be buffered to avoid damage, a controller unit 12 is arranged inside the placing box 10, a reader-writer unit 13 is arranged on the right side of the controller unit 12, an information acquisition unit 14 is arranged above the reader-writer unit 13, an information fusion module 15 is arranged on the left side of the information acquisition unit 14, and the clamping plate 16 is bonded on one side of the silicone pad, a sliding block 17 is fixedly connected below the clamping plate 16, the clamping plate 16 forms a sliding structure with the sliding rail 9 through the sliding block 17, the external size of the sliding block 17 is matched with the internal size of the sliding rail 9, and meanwhile, the sliding block 17 and the sliding rail 9 can be stable and cannot shake when sliding;
the left side of the clamping plate 16 is fixedly connected with a connecting block 18, the left side of the connecting block 18 is hinged with a first connecting rod 19, a second connecting rod 20 is arranged below the first connecting rod 19, the right side of the second connecting rod 20 is hinged with an electric telescopic rod 21, the electric telescopic rod 21 penetrates through the inside of a supporting plate 22, the horizontal line of the electric telescopic rod 21 is perpendicular to the outer wall of a fixing plate 23, the supporting plate 22 can play a supporting role through the electric telescopic rod 21, the electric telescopic rod 21 is prevented from being large in transverse length and falling off after being accidentally collided, the supporting plate 22 is arranged on the right side of the electric telescopic rod 21, the fixing plate 23 is arranged on the right side of the supporting plate 22, the central axis of the fixing plate 23 is perpendicular to the upper surface of the partition plate 8, the lower surface of the fixing plate 23 is tightly attached to the, the electric telescopic rod 21 is connected through a bolt during fixing, so that a user can conveniently detach and maintain the electric telescopic rod 21;
the left side and the right side of the equipment box 1 are fixedly connected with supporting cabinets 24, drawers 25 are movably connected inside the supporting cabinets 24, the drawers 25 form a sliding structure through connecting keys 27 and connecting grooves 26, the external dimensions of the connecting keys 27 are matched with the internal dimensions of the connecting grooves 26, storage space of the device is increased by the drawers 25, and daily-needed measuring tools and parts can be collected in a centralized manner during work; the trouble of searching is avoided, and meanwhile, the drawer 25 is fixedly connected through the matching between the connecting key 27 and the connecting groove 26, so that a user can conveniently take stored articles;
the left side and the right side of the drawer 25 are both provided with connecting grooves 26, the inside of each connecting groove 26 is connected with a connecting key 27 in a sliding manner, a connecting plate 28 is arranged below the equipment box 1, the front end of each connecting plate 28 is fixedly connected with a hydraulic rod 29, the hydraulic rods 29 are symmetrically distributed on the upper side and the lower side of the rear end of the support column 30, the horizontal line of each hydraulic rod 29 is perpendicular to the outer wall of the support column 30, the hydraulic rods 29 can move the support column 30 and a cushion above the support column 30 back and forth, operation is convenient for a user and can be stored when the equipment is not used, the front end of each hydraulic rod 29 is provided with a seat 30, rollers 31 are fixedly connected below the support column 30, the central axes of the support column 30 and the central axes of the rollers 31 are overlapped, the central axes of the support column 30 and the central axes of the connecting plates 28 are parallel, and, the user demand of satisfying people that can be fine, the front end of equipment case 1 is articulated to have folding door 32, and folding door 32's inside fixedly connected with observation window 33.
In the invention, when a user uses the device, firstly, the device is moved to the side of a machine tool, then internal electric elements are placed in the placing box 10, then the electric telescopic rod 21 (model: GRA-D8) is started, the electric telescopic rod 21 is stretched and contracted to drive the angle of the second connecting rod 20 to change, so that the angle of the first connecting rod 19 is changed, the first connecting rod 19 drives the sliding block 17 below the clamping plate 16 to slide in the sliding rail 9 when the angle is changed, so that the clamping plate 16 can be driven to move towards the placing box 10, the placing box 10 is fixed, on one hand, the silica gel pad 11 can increase the friction force between the clamping plate 16 and the placing box 10, so that the clamping plate cannot easily slide when being fixed, and has good heat exchange performance, on the other hand, the extrusion force between the clamping plate 16 and the placing box 10 can be buffered, the damage is avoided, and the, when the electric telescopic rod 21 on one side is damaged, the fixing of the placing box 10 cannot be influenced, the continuous operation of the device can be ensured, meanwhile, the electric telescopic rod 21 is fixed with the fixing plate 23 through bolts, the electric telescopic rod is convenient for a user to detach the electric telescopic rod, after the fixing of the electric elements is finished, the interface on the detection module 4 is connected to the laser displacement sensor unit 401, the interface on the data integration unit 5 is connected with other sensor units 406, after the connection is finished, the spindle rotates, the laser displacement sensor unit 401, the temperature sensor unit 402, the vibration sensor unit 403, the electromagnetic sensor unit 404, the visual sensor unit 405 and other sensor units 406 detect and record information data such as temperature field distribution, thermal deformation, thermal balance time and the like on the spindle, and after the detection, signals are amplified and converted, the information is read, written and analyzed through the controller unit 12 and the reader-writer unit 13, the processed information is finally transmitted to the information acquisition unit 14, the information acquisition unit 14 transmits the acquired information to the information fusion module 15, the information fusion module 15 transmits the fused information to the host 3 for a user to analyze, the user can start the hydraulic rod 29 (model: NX6600-16) when analyzing the information, the hydraulic rod 29 stretches out and draws back to drive the support column 30 to move, the support column 30 extends out of the lower part of the cushion through the roller 31, the user can sit on the cushion to operate, the fatigue degree of the user is reduced, the cushion can be stored without using the hydraulic rod 29, space occupation is avoided, and in the operation process, the user can also place measuring instruments and parts used in the use process of the machine tool in the drawer 25, the drawer 25 can store the information in a centralized manner, so that the loss is avoided, and the use requirements of people can be well met, namely the working principle of the information acquisition and fusion device based on the thermal design of the main shaft and the working principle of the method thereof.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (11)

1.一种基于主轴热设计的信息采集融合装置及其方法，包括设备箱(1)和检测模块(4)，其特征在于，所述设备箱(1)的上方固定连接有支撑杆(2)，且支撑杆(2)的上方固定连接有主机(3)，所述检测模块(4)的下方设置有数据整合单元(5)，且检测模块(4)位于主机(3)的右侧，所述支撑柱(2)的右侧设置有键盘(6)，且键盘(6)的右侧设置有鼠标(7)，所述设备箱(1)的内部固定连接有隔板(8)，且隔板(8)的上方固定连接有滑轨(9)，所述滑轨(9)的上方设置有放置箱(10)，且放置箱(10)的左右两侧均设置有硅胶垫(11)，所述放置箱(10)的内部设置有控制器单元(12)，且控制器单元(12)的右侧设置有读写器单元(13)，所述读写器单元(13)的上方设置有信息采集单元(14)，且信息采集单元(14)的左侧设置有信息融合模块(15)，所述硅胶垫(11)远离放置箱(10)中心线的一侧粘合有夹板(16)，且夹板(16)的下方固定连接有滑块(17)，所述夹板(16)的左侧固定连接有连接块(18)，且连接块(18)的左侧铰接有第一连杆(19)，所述第一连杆(19)的下方设置有第二连杆(20)，且第二连杆(20)的右侧铰接有电动伸缩杆(21)，所述电动伸缩杆(21)的右侧设置有支撑板(22)，且支撑板(22)的右侧设置有固定板(23)，所述设备箱(1)的左右两侧均固定连接有支撑柜(24)，且支撑柜(24)的内部活动连接有抽屉(25)，所述抽屉(25)的左右两侧均设置有连接槽(26)，且连接槽(26)的内部滑动连接有连接键(27)，所述设备箱(1)的下方设置有连接板(28)，且连接板(28)的前端固定连接有液压杆(29)，所述液压杆(29)的前端设置有座椅(30)，且支撑柱(30)的下方固定连接有滚轮(31)，所述设备箱(1)的前端铰接有折叠门(32)，且折叠门(32)的内部固定连接有观察窗(33)。1. an information collection and fusion device based on the thermal design of the main shaft and a method thereof, comprising an equipment box (1) and a detection module (4), characterized in that the top of the equipment box (1) is fixedly connected with a support rod (2). ), and a mainframe (3) is fixedly connected above the support rod (2), a data integration unit (5) is arranged below the detection module (4), and the detection module (4) is located on the right side of the mainframe (3) , a keyboard (6) is arranged on the right side of the support column (2), and a mouse (7) is arranged on the right side of the keyboard (6), and a partition plate (8) is fixedly connected to the inside of the equipment box (1). , and a sliding rail (9) is fixedly connected above the partition plate (8), a placing box (10) is arranged above the sliding rail (9), and the left and right sides of the placing box (10) are provided with silicone pads (11), a controller unit (12) is arranged inside the placing box (10), and a reader unit (13) is arranged on the right side of the controller unit (12), and the reader unit (13) ) is provided with an information acquisition unit (14), and an information fusion module (15) is provided on the left side of the information acquisition unit (14), and the silicone pad (11) is glued to the side away from the center line of the placing box (10). A splint (16) is combined, and a slider (17) is fixedly connected below the splint (16), a connecting block (18) is fixedly connected to the left side of the splint (16), and the left side of the connecting block (18) A first connecting rod (19) is hinged, a second connecting rod (20) is arranged below the first connecting rod (19), and an electric telescopic rod (21) is hinged on the right side of the second connecting rod (20). , the right side of the electric telescopic rod (21) is provided with a support plate (22), and the right side of the support plate (22) is provided with a fixing plate (23), and the left and right sides of the equipment box (1) are fixed A support cabinet (24) is connected, and a drawer (25) is movably connected inside the support cabinet (24), the left and right sides of the drawer (25) are provided with connecting grooves (26), and the connecting grooves (26) are A connecting key (27) is slidably connected inside, a connecting plate (28) is arranged below the equipment box (1), and a hydraulic rod (29) is fixedly connected to the front end of the connecting plate (28). The hydraulic rod (29) The front end of the equipment box (1) is provided with a seat (30), and a roller (31) is fixedly connected to the bottom of the support column (30). The front end of the equipment box (1) is hinged with a folding door (32), and the folding door (32) An observation window (33) is fixedly connected to the inside of the . 2.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述检测模块(4)包括有激光位移传感器单元(401)、温度传感器单元(402)、振动传感器单元(403)、电磁传感器单元(404)、视觉传感器单元(405)和其它传感器单元(406)，且激光位移传感器单元(401)通过导线与温度传感器单元(402)电性输出连接，且温度传感器单元(402)通过导线与振动传感器单元(403)电性输出连接，所述振动传感器单元(403)通过导线与电磁传感器单元(404)电性输出连接，且电磁传感器单元(404)通过导线与视觉传感器单元(405)电性输出连接，所述视觉传感器单元(405)通过导线与其它传感器单元(406)电性输出连接，所述激光位移传感器单元(401)、温度传感器单元(402)、振动传感器单元(403)、电磁传感器单元(404)、视觉传感器单元(405)和其它传感器单元(406)之间通过导线电性串联连接，且其它传感器单元(406)通过导线与数据整合单元(5)电性输出连接。2. A kind of information collection and fusion device and method based on the thermal design of the spindle according to claim 1, wherein the detection module (4) comprises a laser displacement sensor unit (401), a temperature sensor unit (402) ), vibration sensor unit (403), electromagnetic sensor unit (404), visual sensor unit (405) and other sensor units (406), and the laser displacement sensor unit (401) is electrically output from the temperature sensor unit (402) through wires connected, and the temperature sensor unit (402) is electrically output-connected to the vibration sensor unit (403) through a wire, the vibration sensor unit (403) is electrically output-connected to the electromagnetic sensor unit (404) through a wire, and the electromagnetic sensor unit ( 404) is connected to the electrical output of the visual sensor unit (405) through wires, the visual sensor unit (405) is connected to the electrical output of other sensor units (406) through wires, the laser displacement sensor unit (401), the temperature sensor The unit (402), the vibration sensor unit (403), the electromagnetic sensor unit (404), the visual sensor unit (405) and the other sensor units (406) are electrically connected in series by wires, and the other sensor units (406) are connected by wires It is connected to the electrical output of the data integration unit (5). 3.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述滑轨(9)的水平线与电动伸缩杆(21)的水平线之间相平行，且电动伸缩杆(21)呈对称状分布于隔板(8)的上方左右两侧。3. An information collection and fusion device based on the thermal design of a main shaft and a method thereof according to claim 1, wherein the horizontal line of the slide rail (9) is parallel to the horizontal line of the electric telescopic rod (21) , and the electric telescopic rods (21) are symmetrically distributed on the upper left and right sides of the partition plate (8). 4.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述硅胶垫(11)的右侧表面与夹板(16)的左侧表面之间为紧密贴合，且夹板(16)的中轴线与滑块(17)的中轴线之间相重合。4. The information acquisition and fusion device based on the thermal design of the main shaft and the method thereof according to claim 1, characterized in that, between the right side surface of the silicone pad (11) and the left side surface of the splint (16) In order to fit closely, the central axis of the splint (16) coincides with the central axis of the slider (17). 5.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述夹板(16)通过滑块(17)与滑轨(9)之间构成滑动结构，且滑块(17)的外部尺寸与滑轨(9)的内部尺寸之间相吻合。5 . The information collection and fusion device based on the thermal design of the spindle according to claim 1 and the method thereof, wherein the splint ( 16 ) forms a sliding movement between the slider ( 17 ) and the slide rail ( 9 ). 6 . structure, and the outer dimension of the slider (17) matches the inner dimension of the slide rail (9). 6.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述电动伸缩杆(21)贯穿于支撑板(22)的内部，且电动伸缩杆(21)的水平线与固定板(23)的外壁之间相垂直。6. An information collection and fusion device based on the thermal design of the main shaft and method thereof according to claim 1, wherein the electric telescopic rod (21) runs through the interior of the support plate (22), and the electric telescopic rod The horizontal line of (21) is perpendicular to the outer wall of the fixing plate (23). 7.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述固定板(23)的中轴线与隔板(8)的上表面之间相垂直，且固定板(23)的下表面与隔板(8)的上表面之间为紧密贴合。7 . The information collection and fusion device based on the thermal design of the main shaft and the method thereof according to claim 1 , wherein the central axis of the fixed plate ( 23 ) is in phase with the upper surface of the partition plate ( 8 ). 8 . Vertical, and the lower surface of the fixing plate (23) and the upper surface of the partition plate (8) are in close contact. 8.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述抽屉(25)通过连接键(27)与连接槽(26)之间构成滑动结构，且连接键(27)的外部尺寸与连接槽(26)的内部尺寸之间相吻合。8 . The information collection and fusion device based on the thermal design of the main shaft and the method thereof according to claim 1 , wherein the drawer ( 25 ) forms a sliding movement between the connection key ( 27 ) and the connection groove ( 26 ). 9 . structure, and the outer dimension of the connection key (27) matches the inner dimension of the connection slot (26). 9.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述液压杆(29)呈对称状分布于支撑柱(30)的后端上下两侧，且液压杆(29)的水平线与支撑柱(30)的外壁之间相垂直。9 . The information collection and fusion device based on the thermal design of the main shaft and the method thereof according to claim 1 , wherein the hydraulic rods ( 29 ) are symmetrically distributed on the upper and lower ends of the rear end of the support column ( 30 ). 10 . The horizontal line of the hydraulic rod (29) is perpendicular to the outer wall of the support column (30). 10.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述支撑柱(30)的中轴线与滚轮(31)的中轴线之间相重合，且支撑柱(30)的中轴线与连接板(28)的中轴线之间相平行。10 . The information collection and fusion device based on the thermal design of the main shaft and the method thereof according to claim 1 , wherein the central axis of the support column ( 30 ) and the central axis of the roller ( 31 ) coincide with each other. 11 . , and the central axis of the support column (30) is parallel to the central axis of the connecting plate (28). 11.根据权利要求1所述的一种基于主轴热设计的信息采集融合装置及其方法，其特征在于，所述具体操作步骤如下：11. A kind of information collection and fusion device and method based on spindle thermal design according to claim 1, it is characterized in that, described concrete operation steps are as follows: S1、将温度传感器以及激光位移传感器与数据整合单元(5)和检测模块(4)进行连接，并检查线路是否连接牢靠，机床主轴系统热态特性受多来源、多类型因素的影响，通过结合机床主轴系统热误差生成机理的先验总结和理论分析，对机床内外部待测信息的检测和获取进行合理规划，搭建信息采集平台，在机床运行过程中对力学、声学、热学、振动学等信息不同位点、时间、通道及各传感器不同检测类型、采样频段的数据进行准确、全面地获取。基于信号采集数据，采用LabVIEW和MATLAB建立主轴运行信息采集处理模型，完成振动信号、声压信号、切削力信号、温度信号以及工件加工精度等信息数据的连续循环同步采集分离与精确识别解析，满足信息获取的实时性与同步性要求；S1. Connect the temperature sensor and the laser displacement sensor to the data integration unit (5) and the detection module (4), and check whether the lines are firmly connected. The thermal characteristics of the machine tool spindle system are affected by multiple sources and types of factors. By combining The prior summary and theoretical analysis of the thermal error generation mechanism of the machine tool spindle system, the reasonable planning for the detection and acquisition of the information to be measured inside and outside the machine tool, the establishment of an information collection platform, and the analysis of mechanics, acoustics, heat, vibration, etc. during the operation of the machine tool. Accurate and comprehensive acquisition of data from different locations, times, channels, and different detection types and sampling frequency bands of each sensor. Based on the signal acquisition data, LabVIEW and MATLAB are used to establish the spindle operation information acquisition and processing model, to complete the continuous cycle, synchronous acquisition, separation and accurate identification and analysis of information data such as vibration signal, sound pressure signal, cutting force signal, temperature signal and workpiece machining accuracy. Real-time and synchronization requirements for information acquisition; S2、将传感器的另一端设置在机床主轴系统旁边，确保传感器能够实时检测主轴数据，对采集的信息进行数据分析，然后根据分析结果进行数据检测和数据清理，接着将清理过的数据整合和数据集成，通过Joint Directors of Laboratories(JDL)模型建立数据级基础信息数据集，在此基础上将整合的数据转换成适合挖掘的形式，接着需要利用智能技术来挖掘潜在的有用信息，并重新存入基础信息数据集中进行数据更新，为信息特征提取与筛选、核心变量导出与权值求解和信息融合模型的建立奠定基础；S2. Set the other end of the sensor next to the spindle system of the machine tool to ensure that the sensor can detect the spindle data in real time, perform data analysis on the collected information, and then perform data detection and data cleaning according to the analysis results, and then integrate the cleaned data. Integration, through the Joint Directors of Laboratories (JDL) model to establish a data-level basic information data set, on this basis, convert the integrated data into a form suitable for mining, and then need to use intelligent technology to mine potential useful information and re-store it Data update is carried out in the basic information data set, which lays the foundation for the extraction and screening of information features, the export of core variables and the calculation of weights, and the establishment of information fusion models; S3、打开开关，温度传感器以及激光位移传感器将记录主轴在运行时产生的数据，温度传感器将信息经过放大和转换后传递到读写器单元(13)，激光位移传感器将信息经过放大和转换之后传递到控制器单元(12)，基础信息数据集数据规模庞大，信息类型多，其中包含引起热误差的直接变量、间接变量、疑似变量、冗余变量和干扰量等，不能直接反应与热误差的相关性，需要对原始信息进行特征提取和筛选，并通过训练的神经网络对之进行分析识别，导出核心变量，求取核心变量权值，通过Radial Basis Function(RBF)模型建立热设计信息特征集，其过程描述大致如下：S3. Turn on the switch, the temperature sensor and the laser displacement sensor will record the data generated by the spindle during operation, the temperature sensor will amplify and convert the information and transmit it to the reader unit (13), and the laser displacement sensor will amplify and convert the information. Transferred to the controller unit (12), the basic information data set has a huge data scale and many types of information, including direct variables, indirect variables, suspected variables, redundant variables and interference quantities that cause thermal errors, which cannot directly reflect thermal errors. It is necessary to extract and screen the original information, analyze and identify it through the trained neural network, derive the core variables, obtain the weights of the core variables, and establish the thermal design information features through the Radial Basis Function (RBF) model. The process is described roughly as follows: 1)特征提取：采用时域、频域、时频域分析中的总体经验模态分解以及灰度共生矩阵等特征提取方法对基础信息数据集进行特征提取。1) Feature extraction: Feature extraction methods such as overall empirical mode decomposition in time domain, frequency domain, and time-frequency domain analysis and gray-level co-occurrence matrix are used to extract features from the basic information dataset. 2)特征筛选：特征集数据量庞大，且各信息特征量之间具有相关性，使后续模型建立存在较大复杂性，造成热设计决策误差。利用Pearson相关系数法以特征量与热态特性的相关性作为依据对特征信息进行筛选，即2) Feature screening: The amount of data in the feature set is huge, and there is a correlation between the information features, which makes the subsequent model establishment more complicated, resulting in thermal design decision-making errors. The Pearson correlation coefficient method is used to screen the feature information based on the correlation between the feature quantity and the thermal state characteristics, that is,
Figure FDA0002733877630000051
Figure FDA0002733877630000051
 式中，T是特征相关性系数，N是特征集中特征量数，i是特征量，xi是热态特性指标量。In the formula, T is the feature correlation coefficient, N is the number of feature quantities in the feature set, i is the feature quantity, and x i is the thermal state characteristic index quantity. 3)核心变量导出与权值求解：基于热态特性识别目标的特点，通过神经网络对特征信息进行分析识别，导出热态特性核心变量，并进行核心变量权值求解，获得多源异类信息数据的特征集。其中，利用核心变量j对目标A基本概率分配函数mj(A)进行权值求解可表示为3) Core variable derivation and weight solution: Identify the characteristics of the target based on the thermal state characteristics, analyze and identify the feature information through a neural network, derive the core variables of the thermal state characteristics, and solve the core variable weights to obtain multi-source heterogeneous information data feature set. Among them, using the core variable j to solve the weight value of the basic probability distribution function m j (A) of the target A can be expressed as
Figure FDA0002733877630000052
Figure FDA0002733877630000052
 式中,Cj为核心变量对热态特性目标量A的相关系数，N为核心变量数，K为修正系数，Rj为对应传感器的可靠性系数，Wj为传感器的环境加权系数，αj为传感器最大相关系数，βj为传感器相关分配值；In the formula, C j is the correlation coefficient between the core variables and the target quantity A of thermal state characteristics, N is the number of core variables, K is the correction coefficient, R j is the reliability coefficient of the corresponding sensor, W j is the environmental weighting coefficient of the sensor, α j is the maximum correlation coefficient of the sensor, and β j is the assigned value of the sensor correlation; S4、读写器单元(13)将信息进行读数和写入，控制器单元(12)将信息经过分析处理，基于核心变量，结合基本概率分布函数，获取机床主轴系统热误差的诱导证据，并利用证据理论进行加权DS证据融合模型建立，实现多源异类信息决策级融合模型建立。假设两个证据对热态特性目标A和B在同一空间Θ中的概率分布函数mi，m2，则可以计算其融合为新假设θ的置信水平，其求解公式如下：S4. The reader unit (13) reads and writes the information, and the controller unit (12) analyzes and processes the information, obtains the induction evidence of the thermal error of the machine tool spindle system based on the core variables and the basic probability distribution function, and The weighted DS evidence fusion model is established by using evidence theory, and the decision-level fusion model of multi-source heterogeneous information is established. Assuming the probability distribution functions m i , m 2 of two evidences for the thermal state characteristic targets A and B in the same space Θ, the confidence level of fusion into a new hypothesis θ can be calculated, and the solution formula is as follows:
Figure FDA0002733877630000061
Figure FDA0002733877630000061
Figure FDA0002733877630000062
Figure FDA0002733877630000062
 式中，k为两个证据之间的冲突因子，多源异类信息融合模型的建立如图4所示；In the formula, k is the conflict factor between the two evidences, and the establishment of the multi-source heterogeneous information fusion model is shown in Figure 4; S5、经过处理之后的信息传递到信息采集单元(14)，信息采集单元(14)将传递过来的信息进行收集，分类等操作，基于多源异类信息耦合模型的建立，围绕主轴系统就力场、声场、热场、电磁场等多场边界获得主轴系统热态特性分布特性，以诱导证据为约束条件，定义设计区域、材料属性、热载荷情况等相关参数，对机床主轴系统进行全约束热设计求解，求取其热态特性的最优解，进一步获得热设计参数，并建立起热设计数据库，实现通过建立多源异类信息融合模型获取热设计参数以驱动热设计数字化建模的目的；S5. The processed information is transmitted to the information acquisition unit (14), and the information acquisition unit (14) collects, classifies and other operations on the transmitted information. , sound field, thermal field, electromagnetic field and other multi-field boundaries to obtain the distribution characteristics of the thermal state characteristics of the spindle system, with the induced evidence as the constraint, define the design area, material properties, thermal load conditions and other related parameters, and carry out the fully constrained thermal design of the machine tool spindle system Solve, obtain the optimal solution of its thermal state characteristics, further obtain thermal design parameters, and establish a thermal design database to achieve the purpose of obtaining thermal design parameters by establishing a multi-source heterogeneous information fusion model to drive thermal design digital modeling; S6、经过收集之后的信息再次传递到信息融合模块(15)，信息融合模块(15)将处理之后的信息进行融合，对具有复杂性和多样性的信息数据进行处理，最终将数据传递到主机(3)上，供使用者对信息进行分析记录，搭建多源异类信息采集分离与识别解析平台，完善系统软硬件配置，包括传感器、数据采集卡选型及其信号输入范围、采样频率、信号连接方式、采集卡的接线方式等。完成软件系统的设计，在LabVIEW软件环境下，按照设定的采样时间、采样频率、采样通道等完成信号采集程序的编制，调用Matlab程序设计数据采集模块，数据分析模块等，进行多源异类信息融合模型建立，完成机床多源异类信息采集与处理，获取热设计数据，实现对主轴系统进行多场多体全约束智能热设计。借助试验平台，可开展机床主轴系统热动态特性分析与测试研究，并对热设计方案进行有效性和准确性验证，进一步完成对热设计方法的修正。S6. The collected information is transmitted to the information fusion module (15) again, and the information fusion module (15) fuses the processed information, processes the complex and diverse information data, and finally transmits the data to the host (3) On, for users to analyze and record information, build a multi-source heterogeneous information collection, separation, identification and analysis platform, and improve the system software and hardware configuration, including sensor, data acquisition card selection and its signal input range, sampling frequency, signal Connection method, connection method of the acquisition card, etc. Complete the design of the software system, in the LabVIEW software environment, complete the compilation of the signal acquisition program according to the set sampling time, sampling frequency, sampling channel, etc., call the Matlab program to design the data acquisition module, data analysis module, etc., to carry out multi-source heterogeneous information The fusion model is established, the collection and processing of multi-source heterogeneous information of the machine tool is completed, the thermal design data is obtained, and the multi-field, multi-body, and full-constraint intelligent thermal design of the spindle system is realized. With the help of the test platform, the analysis and testing of the thermal dynamic characteristics of the machine tool spindle system can be carried out, the validity and accuracy of the thermal design scheme can be verified, and the thermal design method can be further revised.
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