CN117001453B - Motor stator and rotor punching burr control method and system - Google Patents
Motor stator and rotor punching burr control method and system Download PDFInfo
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- CN117001453B CN117001453B CN202311291221.4A CN202311291221A CN117001453B CN 117001453 B CN117001453 B CN 117001453B CN 202311291221 A CN202311291221 A CN 202311291221A CN 117001453 B CN117001453 B CN 117001453B
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- 238000000034 method Methods 0.000 title claims abstract description 73
- 238000004080 punching Methods 0.000 title claims abstract description 66
- 230000002159 abnormal effect Effects 0.000 claims abstract description 101
- 238000012545 processing Methods 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 23
- 230000008859 change Effects 0.000 claims description 58
- 230000005856 abnormality Effects 0.000 claims description 21
- 230000009466 transformation Effects 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 7
- 238000012549 training Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 230000000877 morphologic effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 10
- 238000009826 distribution Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The application provides a motor stator and rotor punching burr control method and system, which relate to the technical field of motors and comprise the following steps: the method comprises the steps of obtaining fixed clamping equipment for processing semi-finished stator and rotor punching sheets, obtaining a plurality of fixed points, constructing a clamping point position vibration sensing module, respectively arranging a plurality of patch sensors on the plurality of fixed points, performing vibration sensing monitoring to obtain a plurality of groups of vibration sensing data sets, collecting sample sensing data sets during processing operation, performing abnormal recognition, locating the abnormal fixed points, generating first fixed adjustment parameters, and controlling the abnormal fixed points by the first fixed adjustment parameters. The application solves the technical problems that the traditional method lacks real-time monitoring of vibration conditions of clamping points, is difficult to accurately position abnormal fixed points causing burrs, limits of manual intervention and the like in the processing process.
Description
Technical Field
The application relates to the technical field of motors, in particular to a motor stator and rotor punching burr control method and system.
Background
Burrs are a common problem in the production process, noise, vibration and efficiency of a motor can be reduced, along with improvement of quality requirements of the motor in the industry, burrs of a control rotor punching sheet become a key of a solution, performance and reliability of the motor can be improved through control of the burrs of the motor stator and rotor punching sheet, meanwhile, requirements of a user on the mute, high efficiency and durability of the motor are met, and development of the motor industry is promoted.
The existing motor stator and rotor punching burr control method has the defects that vibration conditions of clamping points are difficult to accurately monitor in real time in the machining process, vibration anomalies cannot be found timely, abnormal fixing points causing burrs cannot be accurately located, targeted adjustment measures are difficult to take, meanwhile, the manual intervention of burr elimination operation is more, and therefore burr elimination effect is poor and efficiency is low.
Therefore, a certain lifting space exists for controlling burrs of the stator and rotor punching sheets of the motor.
Disclosure of Invention
The application provides a motor stator and rotor punching burr control method and system, and aims to solve the technical problems that in the traditional method, vibration conditions of clamping points are difficult to monitor accurately in real time, vibration anomalies cannot be found timely, abnormal fixing points causing burrs cannot be positioned accurately, targeted adjustment measures are difficult to take, meanwhile, manual intervention of burr elimination operation is more, and therefore burr elimination effect is poor and efficiency is low.
In view of the above problems, the application provides a motor stator and rotor punching burr control method and system.
The application discloses a first aspect, which provides a motor stator and rotor punching burr control method, comprising the following steps: the method comprises the steps of obtaining fixed clamping equipment for processing semi-finished stator and rotor punching sheets; acquiring a plurality of fixed points of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment; a clamping point position vibration sensing module is constructed, wherein the clamping point position vibration sensing module comprises a plurality of patch sensors, the patch sensors are respectively arranged on the fixed points, and the patch sensors are used for respectively carrying out vibration sensing monitoring on the fixed points to obtain a plurality of groups of vibration sensing data sets output by the clamping point position vibration sensing module; collecting a sample sensing data set when the semi-finished stator and rotor punching sheet is placed on the fixed clamping equipment to perform machining operation, wherein the sample sensing data set comprises vibration sample data sets of the fixed points and a machined burr change data set; carrying out abnormal recognition on the plurality of groups of vibration sensing data sets by using the sample sensing data sets, and positioning an abnormal fixed point; based on the anomaly fixed point, a first fixed adjustment parameter is generated, and the anomaly fixed point is controlled by the first fixed adjustment parameter.
In another aspect of the present disclosure, a motor stator and rotor sheet burr control system is provided, the system is used in the above method, and the system includes: the fixed clamping equipment acquisition unit is used for acquiring fixed clamping equipment for processing the semi-finished stator and rotor punching sheet; the fixed point acquisition unit is used for acquiring a plurality of fixed points of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment; the vibration sensing module construction unit is used for constructing a clamping point position vibration sensing module, wherein the clamping point position vibration sensing module comprises a plurality of patch sensors which are respectively arranged on the fixed points, and the patch sensors are used for respectively carrying out vibration sensing monitoring on the fixed points to obtain a plurality of groups of vibration sensing data sets output by the clamping point position vibration sensing module; the sample sensing data acquisition unit is used for collecting sample sensing data sets when the semi-finished stator and rotor punching sheet is placed on the fixed clamping equipment to perform machining operation, wherein the sample sensing data sets comprise vibration sample data sets of the fixed points and machined burr change data sets; the abnormality identification unit is used for carrying out abnormality identification on the plurality of groups of vibration sensing data sets by using the sample sensing data sets and positioning an abnormality fixed point; and the adjusting parameter generating unit is used for generating a first fixed adjusting parameter based on the abnormal fixed point and controlling the abnormal fixed point by the first fixed adjusting parameter.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
the vibration sensing module of the clamping point is constructed, and the patch sensor is used for vibration sensing monitoring of a plurality of fixed points, so that real-time monitoring of vibration conditions of the clamping point is realized; by identifying the abnormality of the sample sensing data set and the plurality of groups of vibration sensing data sets, a specific fixed point causing burrs can be accurately positioned and identified, and targeted adjustment measures are realized; based on the abnormal fixed point, a first fixed adjustment parameter is generated, and automatic control on the abnormal fixed point is realized by applying the parameter, so that the dependence on manual intervention is reduced, and the efficiency and stability are improved. By the method, the technical problems that in the traditional motor stator and rotor sheet burr control, the vibration condition of clamping points is lack in real time monitoring, abnormal fixing points of burrs are difficult to accurately position, manual intervention is limited and the like are effectively solved, and the technical effects of real-time monitoring, accurate positioning, identification, automatic control and the like can be achieved by introducing the method, so that the processing quality of the motor stator and rotor sheet is improved, the burrs are reduced, and the manual intervention is reduced.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
Fig. 1 is a schematic flow chart of a motor stator and rotor punching burr control method according to an embodiment of the application;
fig. 2 is a schematic structural diagram of a motor stator and rotor punching burr control system according to an embodiment of the application.
Reference numerals illustrate: the device comprises a fixed clamping device acquisition unit 10, a fixed point acquisition unit 20, a vibration sensing module construction unit 30, a sample sensing data acquisition unit 40, an abnormality identification unit 50 and an adjustment parameter generation unit 60.
Detailed Description
The embodiment of the application solves the technical problems that the traditional method is difficult to accurately monitor the vibration condition of the clamping point in real time, vibration abnormality cannot be found in time, abnormal fixed points causing burrs cannot be accurately positioned, targeted adjustment measures are difficult to take, meanwhile, the manual intervention of the deburring operation is more, and the deburring effect is poor and the efficiency is low.
Having described the basic principles of the present application, various non-limiting embodiments of the present application will now be described in detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an embodiment of the present application provides a motor stator and rotor punching burr control method, which includes:
the method comprises the steps of obtaining fixed clamping equipment for processing semi-finished stator and rotor punching sheets;
the stator and rotor punching sheet is a rotating part for a motor and consists of a stator punching sheet fixed on a motor stator and a rotor connected to a motor rotor shaft, and the stator and rotor punching sheet is used for providing transmission force and mechanical coupling between the stator and the rotor so as to ensure the normal operation of the motor.
According to the shape, the size and the processing technology requirements of the semi-finished stator and rotor punching sheet, the clamping mode of the used fixed clamping equipment is determined, common clamping modes comprise a mechanical clamp, a vacuum chuck, gas clamping and the like, and according to the selected clamping mode, proper fixed clamping equipment is selected to clamp the semi-finished stator and rotor punching sheet, and the clamping equipment is a clamp specially designed for processing the stator and rotor punching sheet so as to ensure that the semi-finished stator and rotor punching sheet keeps stable position and fixing force in the processing process.
Acquiring a plurality of fixed points of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment;
and (3) installing the selected fixed clamping equipment on processing equipment to ensure that the semi-finished stator and rotor punching sheet is clamped correctly, and determining a plurality of fixed points on the fixed clamping equipment according to the characteristics of the semi-finished stator and rotor punching sheet, wherein the fixed points are distributed at different positions of the semi-finished stator and rotor punching sheet so as to ensure that the whole punching sheet is clamped uniformly and stably.
A clamping point position vibration sensing module is constructed, wherein the clamping point position vibration sensing module comprises a plurality of patch sensors, the patch sensors are respectively arranged on the fixed points, and the patch sensors are used for respectively carrying out vibration sensing monitoring on the fixed points to obtain a plurality of groups of vibration sensing data sets output by the clamping point position vibration sensing module;
according to the processing requirement and quality standard of the semi-finished stator and rotor punching sheet, vibration parameters to be monitored, including vibration amplitude, frequency range, vibration direction and the like, are determined, and according to the vibration monitoring requirement, a patch sensor is selected, wherein the patch sensor is a miniaturized sensor which can be adhered to the surface of an object and is used for measuring vibration data. The selected patch sensors are respectively stuck to a plurality of fixed points of the fixed clamping equipment, so that the vibration condition of the clamping point positions can be accurately perceived.
The patch sensor is connected with the clamping point position vibration sensing module, in the processing process of the semi-finished stator and rotor punching sheet, the clamping point position vibration sensing module is started, so that the patch sensor monitors vibration of each fixed point position in real time, finally a plurality of groups of vibration sensing data sets are obtained, vibration conditions of different fixed points are recorded, the vibration conditions of each fixed point position comprise vibration amplitude, frequency spectrum information, time domain waveform and the like, and the vibration conditions of the clamping point position can be evaluated and subsequent abnormal recognition and adjustment control can be performed through analyzing the data.
Collecting a sample sensing data set when the semi-finished stator and rotor punching sheet is placed on the fixed clamping equipment to perform machining operation, wherein the sample sensing data set comprises vibration sample data sets of the fixed points and a machined burr change data set;
and connecting the vibration sensor to each fixed point on the fixed clamping equipment so as to monitor the vibration condition of each fixed point, placing the semi-finished stator and rotor punching sheet on the fixed clamping equipment, and performing processing operation, and simultaneously, starting the data acquisition equipment to record a vibration sample data set of each fixed point. After finishing the processing operation, checking the processed semi-finished stator and rotor punching sheet, detecting a sample by using measuring equipment such as a microscope, a morphology instrument and the like to obtain data of burr change, including change information of the size, the morphology and the like of the burr, and obtaining a burr change data set. And integrating the vibration sample data set and the burr change data set to obtain a sample sensing data set, wherein the sample sensing data set is from the same cutter and has an approximate service life.
Carrying out abnormal recognition on the plurality of groups of vibration sensing data sets by using the sample sensing data sets, and positioning an abnormal fixed point;
further, performing anomaly identification on the plurality of sets of vibration sensing data sets with the sample sensing data set, locating an anomaly fix point, including:
receiving a burr change data set in the sample sensing data set, and performing feature extraction on the burr change data set, wherein the feature extraction comprises burr size features and burr morphological features; performing burr removal difficulty analysis according to the burr size characteristics and the burr morphology characteristics, outputting a burr grade, setting a preset burr grade, and acquiring a preset vibration index under the preset burr grade; and carrying out abnormal recognition on the multiple groups of vibration sensing data sets, and outputting the fixed point as an abnormal fixed point when the vibration index corresponding to any fixed point does not meet the preset vibration index.
Intercepting a data subset containing burr change information from a sample sensing data set, extracting edge information of burrs by using an edge detection algorithm for each burr change data sample, determining the boundary of the burrs by a connected region analysis method, and calculating geometric attributes such as the length, the width, the area and the like of the burrs by using a binarized image so as to extract relevant size characteristics of the burrs; then, morphological features of the burrs are extracted by analyzing angle information of the burr contours. For example, the frequency distribution of the main direction, the inner angle and the outer angle of the burr is calculated, the angle characteristics of the burr are described, texture analysis is performed, and the detail characteristics of the surface of the burr are obtained so as to reflect the texture rule and the complexity degree of the surface of the burr.
Classifying different burrs based on the extracted burr size features by comparing with previous samples, e.g., setting a threshold to determine which burrs belong to a larger or smaller size range; and evaluating the regularity and complexity of the morphology of the burrs according to the extracted morphology features of the burrs, including comparing morphology feature differences between the burrs to determine burrs that are difficult to remove.
According to the result of the burr removal difficulty analysis, the burr grade is determined according to the comprehensive evaluation of the size and the morphological characteristics, for example, the burr grade is divided into three grades of high grade, medium grade and low grade, and the proper preset burr grade is selected from the output burr grades, for example, the medium grade can be selected as the preset burr grade. Based on the preset burr level, the vibration parameters of each fixed point position under the corresponding level are obtained by referring to the sample data in the sample sensing data set and used as preset vibration indexes, and the preset vibration indexes correspond to the preset burr level.
And extracting vibration parameters corresponding to each fixed point position in the plurality of groups of vibration sensing data sets, comparing the vibration parameters with a preset vibration index, judging the fixed point as an abnormal fixed point if the vibration index corresponding to any fixed point does not meet the preset vibration index, and marking and outputting the position identified as the abnormal fixed point.
Based on the anomaly fixed point, a first fixed adjustment parameter is generated, and the anomaly fixed point is controlled by the first fixed adjustment parameter.
For each abnormal fixed point, corresponding first fixed adjustment parameters are generated according to the required adjustment requirements, wherein the parameters comprise clamping force, rotation angle of a screw, thickness of a correction gasket and the like, and the generated first fixed adjustment parameters are applied to the corresponding abnormal fixed points so as to control the stability and performance of the abnormal fixed points.
Further, generating a first fixed adjustment parameter based on the outlier fixed point, further comprises:
identifying the plurality of fixed points of the fixed clamping equipment to obtain a key fixed point and an auxiliary fixed point; when the abnormal fixed point belongs to the key fixed point, acquiring an abnormal change index, and when the abnormal change index is smaller than a first preset abnormal change index, generating a first fixed adjustment parameter; when the abnormal change index is greater than or equal to the first preset abnormal change index, generating first reminding information for reminding that the abnormal fixed point is abnormal.
Identifying a plurality of points on the fixed clamping equipment through a measuring instrument or drawing analysis, and determining key fixed points through analyzing important influences of clamping points on the whole processing technology, the product quality and the stability, wherein the fixed points are related to factors such as geometric dimensions, positions and shapes of the stator and rotor punching sheets of the semi-finished product; in addition to the critical fastening points, auxiliary fastening points are determined according to the requirements of other specific requirements in the clamping process, and the fastening points relate to further control, stabilization and alignment of the clamping points. The identified key fixation points and auxiliary fixation points are marked and recorded.
And acquiring a calculated abnormal change index by calculating a difference value between the calculated abnormal change index and a preset vibration index by using a vibration sensing data set corresponding to the key fixed point, wherein the index is used for measuring the degree of abnormality of the abnormal fixed point. Based on the related specification, setting the maximum allowable value of the difference value as a first preset abnormal change index aiming at the key fixed point, and judging whether the abnormal fixed point reaches a threshold value required to be adjusted or not. Comparing the calculated abnormal change index with a first preset abnormal change index, if the abnormal change index is smaller than the first preset abnormal change index, indicating that the abnormal fixed point needs to be adjusted, and generating corresponding first fixed adjustment parameters according to specific conditions, wherein the adjustment parameters comprise clamping force, rotation angle of an adjusting screw and the like.
If the abnormal change index is greater than or equal to a first preset abnormal change index, the abnormal fixed point is indicated to reach or exceed a preset threshold value, first reminding information is generated, the first reminding information comprises abnormal fixed point information and is used for reminding the abnormal fixed point of abnormality, relevant information is provided and the attention of operators is drawn through modes of system prompt, alarm sound and the like, so that the abnormality can be found timely and corresponding measures can be taken.
Further, when the abnormal fixed point is an auxiliary fixed point, an abnormal change index is obtained, and if the abnormal change index is smaller than a second preset abnormal change index, a first fixed adjustment parameter is generated, wherein the first fixed adjustment parameter is a clamping adjustment parameter determined based on the elastic modulus of the semi-finished stator and rotor punching sheet.
Similarly, the vibration sensing data set corresponding to the auxiliary fixed point is utilized to calculate an abnormal change index, a second preset abnormal change index is set for the auxiliary fixed point to serve as a judging threshold, the calculated abnormal change index is compared with the second preset abnormal change index, if the abnormal change index is smaller than the second preset abnormal change index, the abnormal fixed point is required to be adjusted, and a first fixed adjustment parameter is generated.
The semi-finished stator and rotor punching sheet has specific elastic properties, the elastic modulus of the semi-finished stator and rotor punching sheet can be obtained through testing, the elastic modulus is a parameter describing the rigidity and deformation characteristics of materials, and a first fixed adjustment parameter is determined according to the elastic modulus of the semi-finished stator and rotor punching sheet, wherein the parameters relate to the setting of clamping force, the adjustment of the rotation angle of a screw or other relevant adjustment measures so as to solve the loosening problem and ensure the stability and the processing quality of clamping points.
Further, the method further comprises the following steps:
the method comprises the steps of constructing a clamping point position pressure sensing module, wherein the clamping point position pressure sensing module comprises a plurality of pressure sensors which are respectively arranged on a plurality of clamping ends, and the clamping point position pressure sensing module is in communication connection with the clamping point position vibration sensing module; the pressure sensors are used for respectively carrying out contact pressure sensing monitoring on the clamping ends, so that a plurality of groups of pressure sensing data sets output by the clamping point position pressure sensing module are obtained; and identifying the multiple groups of pressure sensing data sets and outputting a second fixed adjustment parameter.
According to the structure and the layout of the clamping equipment, the plurality of pressure sensors are respectively placed on each clamping end by combining the number of clamping points, so that the positions and the layout of the sensors can accurately sense the contact pressure, and the plurality of pressure sensors are integrated, so that the clamping point pressure sensing module is constructed. And the clamping point position pressure sensing module is in communication connection with the clamping point position vibration sensing module so as to correlate the pressure sensing data set and the vibration sensing data set together.
And monitoring the contact pressure of each clamping end in real time through a plurality of pressure sensors in the clamping point position pressure sensing module to obtain a plurality of groups of pressure sensing data sets corresponding to each clamping end, wherein each data set comprises the contact pressure monitoring data of the corresponding clamping end.
Further, identifying the plurality of sets of pressure sensing data and outputting a second fixed adjustment parameter, comprising:
training a pressure equalizer, wherein the pressure equalizer is used for carrying out equalization identification on the pressure born by each clamping end; obtaining a first pressure balance index output by the pressure equalizer according to the multiple groups of pressure sensing data sets, and outputting a second fixed adjustment parameter according to the first pressure balance index, wherein the second fixed adjustment parameter at least comprises a clamping angle and clamping displacement; and controlling the abnormal fixed point according to the first fixed adjustment parameter and the second fixed adjustment parameter.
A pressure equalizer suitable for clamping systems is designed, the aim of which is to keep the pressure balance between the clamping points by adjusting the clamping force or other parameters. The clamping forces with different degrees are applied to different points so as to simulate the pressure distribution condition in the actual working condition, and meanwhile, the pressure data of each clamping force state is recorded, so that a group of training data with different clamping force states is obtained.
Training the pressure equalizer by using training data, establishing parameters of the pressure equalizer according to the acquired pressure data and the applied clamping force state, adjusting and optimizing the parameters according to the training result, and gradually improving the performance and accuracy of the pressure equalizer to realize better pressure equalization control until the pressure equalizer output can keep the pressure of each clamping end within a reasonable range and achieve the expected equalization effect.
And processing the collected multiple groups of pressure sensing data sets by using the pressure equalizer to obtain a first pressure equalization index output by the pressure equalizer, wherein the index can reflect pressure difference conditions among different clamping ends and pressure distribution states in the integral clamping system.
According to the first pressure balance index, the angle of the clamping point is adjusted, and the angle of the clamping point is optimized by changing the rotation angle of the screw or other related adjusting means so as to meet the better pressure balance requirement; according to the first pressure balance index, the displacement of the clamping point is adjusted, and the displacement adjustment of the clamping point is realized by means of replacing gaskets, adjusting the relative positions of workpieces and the like, so that better pressure distribution and balance effects are achieved. And integrating the two adjustment parameters of the clamping angle and the clamping displacement to obtain a second fixed adjustment parameter, wherein the second fixed adjustment parameter aims at further adjusting the angle and the displacement of the clamping point position so as to realize a better pressure equalization effect.
According to the first fixed adjustment parameters, corresponding control operation is carried out on the abnormal fixed points, including setting of clamping force, rotation angle adjustment of screws, replacement of gaskets and the like, and the operation is carried out according to the requirements so as to enable the clamping points to reach the required stability and processing quality; based on the generated second fixed adjustment parameters, the state of the abnormal fixed point is further adjusted, and according to clamping angles and clamping displacement in the parameters, better pressure balance and stability are realized by changing angles and relative positions of clamping points.
Further, the method further comprises the following steps:
obtaining a processing technological process of the semi-finished stator and rotor punching sheet; determining clamping conversion process nodes based on each node in the processing process, wherein the clamping conversion process nodes are process nodes in which the position of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment is changed in all the nodes; and carrying out node abnormality recognition on the multiple groups of vibration sensing data sets according to the clamping transformation process nodes, and outputting a corresponding abnormal positioning fixed point when any clamping transformation process node is positioned.
According to specific processing requirements and technological requirements, a processing technological process of the semi-finished stator and rotor punching sheet is obtained, wherein the process describes specific processing steps, operations and processing stages from raw materials to a final product.
According to the processing process flow, flow nodes which can cause the position change of the semi-finished stator and rotor punching sheet are determined in all nodes, and the nodes involve operations such as workpiece replacement, rotation clamping equipment, adjusting bolts and the like, so that the relative position of the semi-finished stator and rotor punching sheet is changed. And taking the obtained flow nodes as clamping transformation flow nodes, wherein the nodes mark key points for changing the positions of the semi-finished stator and rotor punching sheets in clamping operation.
Collecting sample data containing a plurality of groups of vibration sensing data sets, wherein the data cover vibration conditions of the final product from the beginning to the end at different clamping transformation flow nodes, determining data segments corresponding to each node according to the clamping transformation flow nodes, identifying vibration abnormality of the corresponding data segments aiming at each clamping transformation flow node, determining corresponding positioning abnormality fixed points of the vibration modes marked as abnormality, and recording the abnormality fixed points and the clamping transformation flow nodes.
Through the steps, the abnormal locating fixed points which occur when any clamping transformation flow node is located in the clamping operation are identified, and through real-time monitoring and identification of the abnormalities, corresponding measures can be taken to correct the problem of the clamping points, so that the accuracy and stability of the clamping points are ensured.
In summary, the motor stator and rotor punching burr control method and system provided by the embodiment of the application have the following technical effects:
1. the vibration sensing module of the clamping point is constructed, and the patch sensor is used for vibration sensing monitoring of a plurality of fixed points, so that real-time monitoring of vibration conditions of the clamping point is realized;
2. by identifying the abnormality of the sample sensing data set and the plurality of groups of vibration sensing data sets, a specific fixed point causing burrs can be accurately positioned and identified, and targeted adjustment measures are realized;
3. based on the abnormal fixed point, a first fixed adjustment parameter is generated, and automatic control on the abnormal fixed point is realized by applying the parameter, so that the dependence on manual intervention is reduced, and the efficiency and stability are improved.
By the method, the technical problems that in the traditional motor stator and rotor sheet burr control, the vibration condition of clamping points is lack in real time monitoring, abnormal fixing points of burrs are difficult to accurately position, manual intervention is limited and the like are effectively solved, and the technical effects of real-time monitoring, accurate positioning, identification, automatic control and the like can be achieved by introducing the method, so that the processing quality of the motor stator and rotor sheet is improved, the burrs are reduced, and the manual intervention is reduced.
Example two
Based on the same inventive concept as the motor stator and rotor sheet burr control method in the foregoing embodiment, as shown in fig. 2, the present application provides a motor stator and rotor sheet burr control system, which includes:
the fixed clamping equipment acquisition unit 10 is used for acquiring fixed clamping equipment for processing the semi-finished stator and rotor punching sheet;
the fixed point acquisition unit 20 is used for acquiring a plurality of fixed points of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment;
the vibration sensing module construction unit 30, the vibration sensing module construction unit 30 is used for constructing a clamping point position vibration sensing module, wherein the clamping point position vibration sensing module comprises a plurality of patch sensors, the patch sensors are respectively arranged on the fixed points, and the patch sensors are used for respectively carrying out vibration sensing monitoring on the fixed points to obtain a plurality of groups of vibration sensing data sets output by the clamping point position vibration sensing module;
the sample sensing data acquisition unit 40 is used for collecting a sample sensing data set when the semi-finished stator and rotor punching sheet is placed on the fixed clamping equipment to perform machining operation, wherein the sample sensing data set comprises vibration sample data sets of the fixed points and a machined burr change data set;
an anomaly identification unit 50, wherein the anomaly identification unit 50 is configured to perform anomaly identification on the multiple sets of vibration sensing data sets by using the sample sensing data sets, and locate an anomaly fixed point;
and an adjustment parameter generation unit 60, wherein the adjustment parameter generation unit 60 is configured to generate a first fixed adjustment parameter based on the anomaly fixed point, and control the anomaly fixed point with the first fixed adjustment parameter.
Further, the system further comprises a reminding information generating module for executing the following operation steps:
identifying the plurality of fixed points of the fixed clamping equipment to obtain a key fixed point and an auxiliary fixed point;
when the abnormal fixed point belongs to the key fixed point, acquiring an abnormal change index, and when the abnormal change index is smaller than a first preset abnormal change index, generating a first fixed adjustment parameter;
when the abnormal change index is greater than or equal to the first preset abnormal change index, generating first reminding information for reminding that the abnormal fixed point is abnormal.
Further, the system also comprises a second fixed adjustment parameter generation module to perform the following operation steps:
the method comprises the steps of constructing a clamping point position pressure sensing module, wherein the clamping point position pressure sensing module comprises a plurality of pressure sensors which are respectively arranged on a plurality of clamping ends, and the clamping point position pressure sensing module is in communication connection with the clamping point position vibration sensing module;
the pressure sensors are used for respectively carrying out contact pressure sensing monitoring on the clamping ends, so that a plurality of groups of pressure sensing data sets output by the clamping point position pressure sensing module are obtained;
and identifying the multiple groups of pressure sensing data sets and outputting a second fixed adjustment parameter.
Further, the system also comprises an abnormal fixed point control module for executing the following operation steps:
training a pressure equalizer, wherein the pressure equalizer is used for carrying out equalization identification on the pressure born by each clamping end;
obtaining a first pressure balance index output by the pressure equalizer according to the multiple groups of pressure sensing data sets, and outputting a second fixed adjustment parameter according to the first pressure balance index, wherein the second fixed adjustment parameter at least comprises a clamping angle and clamping displacement;
and controlling the abnormal fixed point according to the first fixed adjustment parameter and the second fixed adjustment parameter.
Further, when the abnormal fixed point is an auxiliary fixed point, an abnormal change index is obtained, and if the abnormal change index is smaller than a second preset abnormal change index, a first fixed adjustment parameter is generated, wherein the first fixed adjustment parameter is a clamping adjustment parameter determined based on the elastic modulus of the semi-finished stator and rotor punching sheet.
Further, the system also comprises an abnormal fixed point output module for executing the following operation steps:
receiving a burr change data set in the sample sensing data set, and performing feature extraction on the burr change data set, wherein the feature extraction comprises burr size features and burr morphological features;
performing burr removal difficulty analysis according to the burr size characteristics and the burr morphology characteristics, outputting a burr grade, setting a preset burr grade, and acquiring a preset vibration index under the preset burr grade;
and carrying out abnormal recognition on the multiple groups of vibration sensing data sets, and outputting the fixed point as an abnormal fixed point when the vibration index corresponding to any fixed point does not meet the preset vibration index.
Further, the system also comprises a positioning abnormal fixed point output module for executing the following operation steps:
obtaining a processing technological process of the semi-finished stator and rotor punching sheet;
determining clamping conversion process nodes based on each node in the processing process, wherein the clamping conversion process nodes are process nodes in which the position of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment is changed in all the nodes;
and carrying out node abnormality recognition on the multiple groups of vibration sensing data sets according to the clamping transformation process nodes, and outputting a corresponding abnormal positioning fixed point when any clamping transformation process node is positioned.
In the present disclosure, through the foregoing detailed description of a motor stator and rotor sheet burr control method, those skilled in the art can clearly understand that a motor stator and rotor sheet burr control method and system in this embodiment, for the apparatus disclosed in the embodiments, the description is relatively simple, and relevant places refer to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The motor stator and rotor punching burr control method is characterized by comprising the following steps of:
the method comprises the steps of obtaining fixed clamping equipment for processing semi-finished stator and rotor punching sheets;
acquiring a plurality of fixed points of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment;
a clamping point position vibration sensing module is constructed, wherein the clamping point position vibration sensing module comprises a plurality of patch sensors, the patch sensors are respectively arranged on the fixed points, and the patch sensors are used for respectively carrying out vibration sensing monitoring on the fixed points to obtain a plurality of groups of vibration sensing data sets output by the clamping point position vibration sensing module;
collecting a sample sensing data set when the semi-finished stator and rotor punching sheet is placed on the fixed clamping equipment to perform machining operation, wherein the sample sensing data set comprises vibration sample data sets of the fixed points and a machined burr change data set;
carrying out abnormal recognition on the plurality of groups of vibration sensing data sets by using the sample sensing data sets, and positioning an abnormal fixed point;
based on the anomaly fixed point, a first fixed adjustment parameter is generated, and the anomaly fixed point is controlled by the first fixed adjustment parameter.
2. The method of claim 1, wherein the method further comprises:
identifying the plurality of fixed points of the fixed clamping equipment to obtain a key fixed point and an auxiliary fixed point;
when the abnormal fixed point belongs to the key fixed point, acquiring an abnormal change index, and when the abnormal change index is smaller than a first preset abnormal change index, generating a first fixed adjustment parameter;
when the abnormal change index is greater than or equal to the first preset abnormal change index, generating first reminding information for reminding that the abnormal fixed point is abnormal.
3. The method of claim 1, wherein the method further comprises:
the method comprises the steps of constructing a clamping point position pressure sensing module, wherein the clamping point position pressure sensing module comprises a plurality of pressure sensors which are respectively arranged on a plurality of clamping ends, and the clamping point position pressure sensing module is in communication connection with the clamping point position vibration sensing module;
the pressure sensors are used for respectively carrying out contact pressure sensing monitoring on the clamping ends, so that a plurality of groups of pressure sensing data sets output by the clamping point position pressure sensing module are obtained;
and identifying the multiple groups of pressure sensing data sets and outputting a second fixed adjustment parameter.
4. A method as claimed in claim 3, wherein the method further comprises:
training a pressure equalizer, wherein the pressure equalizer is used for carrying out equalization identification on the pressure born by each clamping end;
obtaining a first pressure balance index output by the pressure equalizer according to the multiple groups of pressure sensing data sets, and outputting a second fixed adjustment parameter according to the first pressure balance index, wherein the second fixed adjustment parameter at least comprises a clamping angle and clamping displacement;
and controlling the abnormal fixed point according to the first fixed adjustment parameter and the second fixed adjustment parameter.
5. The method of claim 2, wherein when the anomaly fixation point is an auxiliary fixation point, an anomaly change index is obtained, and if the anomaly change index is less than a second predetermined anomaly change index, a first fixed adjustment parameter is generated, wherein the first fixed adjustment parameter is a clamping adjustment parameter determined based on an elastic modulus of the semi-finished stator/rotor sheet.
6. The method of claim 1, wherein the method further comprises:
receiving a burr change data set in the sample sensing data set, and performing feature extraction on the burr change data set, wherein the feature extraction comprises burr size features and burr morphological features;
performing burr removal difficulty analysis according to the burr size characteristics and the burr morphology characteristics, outputting a burr grade, setting a preset burr grade, and acquiring a preset vibration index under the preset burr grade;
and carrying out abnormal recognition on the multiple groups of vibration sensing data sets, and outputting the fixed point as an abnormal fixed point when the vibration index corresponding to any fixed point does not meet the preset vibration index.
7. The method of claim 1, wherein the method further comprises:
obtaining a processing technological process of the semi-finished stator and rotor punching sheet;
determining clamping conversion process nodes based on each node in the processing process, wherein the clamping conversion process nodes are process nodes in which the position of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment is changed in all the nodes;
and carrying out node abnormality recognition on the multiple groups of vibration sensing data sets according to the clamping transformation process nodes, and outputting a corresponding abnormal positioning fixed point when any clamping transformation process node is positioned.
8. A motor stator and rotor sheet burr control system, characterized by being used for implementing the motor stator and rotor sheet burr control method according to any one of claims 1-7, comprising:
the fixed clamping equipment acquisition unit is used for acquiring fixed clamping equipment for processing the semi-finished stator and rotor punching sheet;
the fixed point acquisition unit is used for acquiring a plurality of fixed points of the semi-finished stator and rotor punching sheet clamped by the fixed clamping equipment;
the vibration sensing module construction unit is used for constructing a clamping point position vibration sensing module, wherein the clamping point position vibration sensing module comprises a plurality of patch sensors which are respectively arranged on the fixed points, and the patch sensors are used for respectively carrying out vibration sensing monitoring on the fixed points to obtain a plurality of groups of vibration sensing data sets output by the clamping point position vibration sensing module;
the sample sensing data acquisition unit is used for collecting sample sensing data sets when the semi-finished stator and rotor punching sheet is placed on the fixed clamping equipment to perform machining operation, wherein the sample sensing data sets comprise vibration sample data sets of the fixed points and machined burr change data sets;
the abnormality identification unit is used for carrying out abnormality identification on the plurality of groups of vibration sensing data sets by using the sample sensing data sets and positioning an abnormality fixed point;
and the adjusting parameter generating unit is used for generating a first fixed adjusting parameter based on the abnormal fixed point and controlling the abnormal fixed point by the first fixed adjusting parameter.
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|---|---|---|---|---|
| JPH0663260U (en) * | 1993-02-17 | 1994-09-06 | 株式会社明電舎 | Burrs / base metal detector |
| CN104406490A (en) * | 2014-11-20 | 2015-03-11 | 南车株洲电机有限公司 | Panel burr grading detection device |
| WO2020093220A1 (en) * | 2018-11-06 | 2020-05-14 | 深圳创怡兴实业有限公司 | Burr detecting device and method |
| CN112653304A (en) * | 2020-12-22 | 2021-04-13 | 瑞安市华嘉机械制造有限公司 | Centering device for motor stator and rotor punching sheet production |
-
2023
- 2023-10-08 CN CN202311291221.4A patent/CN117001453B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663260U (en) * | 1993-02-17 | 1994-09-06 | 株式会社明電舎 | Burrs / base metal detector |
| CN104406490A (en) * | 2014-11-20 | 2015-03-11 | 南车株洲电机有限公司 | Panel burr grading detection device |
| WO2020093220A1 (en) * | 2018-11-06 | 2020-05-14 | 深圳创怡兴实业有限公司 | Burr detecting device and method |
| CN112653304A (en) * | 2020-12-22 | 2021-04-13 | 瑞安市华嘉机械制造有限公司 | Centering device for motor stator and rotor punching sheet production |
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| CN117001453A (en) | 2023-11-07 |
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