CN111413933A - Processing method of bright surface of hub, manufacturing method of hub and processing system of hub - Google Patents
Processing method of bright surface of hub, manufacturing method of hub and processing system of hub Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims abstract description 76
- 238000003672 processing method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention provides a hub bright surface processing method, a hub manufacturing method, a hub and a hub processing system. The processing method of the bright surface of the hub comprises the steps of obtaining a three-dimensional model of a blank workpiece of the hub; analyzing the three-dimensional model, and determining the processing path of the bright surface of the hub according to the analysis result; turning the blank workpiece according to the processing path; obtaining the bright surface of the hub. According to the processing method of the bright surface of the hub, the processing surface is actually measured, and the processing program is subjected to fine adjustment and correction according to the measurement result, so that the size deviation among blank workpieces is reduced, the standardization degree of the bright surface of the processed hub is improved, the processing precision is higher, the quality is better, the production efficiency and the one-time qualification rate of products are improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of automobile hub manufacturing, in particular to a method for processing a bright surface of a hub, a method for manufacturing the hub, the hub and a system for processing the hub.
Background
At present, in the production process of a finish turning bright face hub, the actual size of a machined face is not detected and judged in the bright face machining process, programming is carried out according to the theoretical size, machining equipment is used for machining the machined face, and all the programs used by the same hub are consistent. Therefore, the blanks produced by the same wheel type in different moulds or the same mould in different processes and time are slightly different, the size of the finished hub product is deviated, and the reject ratio is increased.
Disclosure of Invention
In order to solve at least one of the above problems, an object of the present invention is to provide a method for processing a bright surface of a hub.
Another object of the present invention is to provide a method for manufacturing a hub, which includes the steps of the method for processing a bright surface of a hub.
Still another object of the present invention is to provide a hub prepared by the above hub processing method.
A further object of the present invention is to provide a machining system for implementing the steps of the above-mentioned hub machining method.
In order to achieve the above object, a first aspect of the present invention provides a hub processing method, including: obtaining a three-dimensional model of a blank workpiece of the hub; analyzing the three-dimensional model, and determining the processing path of the bright surface of the hub according to the analysis result; turning the blank workpiece according to the processing path; and obtaining the bright surface of the hub.
According to the processing method of the wheel hub, the three-dimensional model of the blank workpiece of the wheel hub is obtained, and the specific appearance model of the blank workpiece is obtained, so that corresponding fine tuning compensation can be conveniently carried out on subsequent processing procedures according to the specific appearance model of each blank workpiece, the size deviation of the finished wheel hub processed is reduced, and the sizes of all the wheel hubs are unified. By analyzing the three-dimensional model and determining the processing path of the bright surface of the hub according to the analysis result, the required data can be extracted from the three-dimensional model through a program set in a computer and converted into readable program language to form the processing path for turning the bright surface of the hub, so that processing equipment can process blank workpieces conveniently to obtain the bright surface of the hub with uniform specification. Wherein, the bright surface of the hub can also be called as hub bright surface.
Therefore, the machining surface of the blank workpiece is actually measured, and the machining program is finely adjusted and corrected according to the measurement result, so that the size deviation between the blank workpieces is reduced, the standardization degree of the bright surface of the machined hub is improved, the machining precision is higher, the quality is better, the production efficiency and the one-time qualified rate of products are improved, and the production cost is reduced.
In addition, the processing method of the hub in the technical scheme provided by the invention can also have the following additional technical characteristics:
in the above technical solution, the step of obtaining the three-dimensional model of the blank workpiece of the hub includes: photographing the blank workpiece by using photographing equipment to obtain an image of the blank workpiece; and carrying out three-dimensional modeling according to the image to obtain a corresponding three-dimensional model.
In the above technical scheme, the step of using the photographing device to photograph the blank workpiece comprises: photographing the blank workpiece from a plurality of angles by using an industrial camera; or photographing the blank workpiece along the axis direction of the blank workpiece by using a 3D camera.
In any of the above technical solutions, the step of analyzing the three-dimensional model and determining the machining path of the bright surface of the hub according to the analysis result includes: selecting one point on the central axis of the three-dimensional model as a central point; drawing a plurality of circular curves with different diameters by taking the central point as a circle center, wherein the plurality of circular curves form concentric circles perpendicular to the central axis; extracting a plurality of highest points of the circular curves with different diameters which are respectively projected to the three-dimensional model along the direction of the central axis; determining an outer contour line of a bright surface of the hub according to the plurality of highest points; and converting the outer contour line into a processing path of the bright surface of the hub.
In the above technical solution, the step of determining the outer contour line of the bright surface of the hub according to the plurality of highest points includes: projecting a plurality of said vertices onto an axial section of said three-dimensional model; and connecting the plurality of highest points projected onto the shaft section to form an outer contour line.
In the above technical solution, the step of converting the outer contour line into a processing path of the bright surface of the hub includes: establishing an X-Y-Z three-dimensional coordinate system by taking the direction of the central axis as a Z axis and a plane perpendicular to the central axis as an X-Y plane; extracting the positioning coordinates of the outer contour line on the three-dimensional coordinate system; generating the machining path according to the positioning coordinates; wherein the positioning coordinates comprise: coordinates of an intersection of the outer contour line with the X-Z plane and coordinates of an intersection of the outer contour line with the Y-Z plane.
In any one of the above technical solutions, the step of turning the blank workpiece according to the machining path and the step of obtaining the bright surface of the hub includes: grinding and polishing the turned blank workpiece; and coating the blank workpiece after the grinding and polishing treatment.
The technical scheme of the second aspect of the invention provides a manufacturing method of a hub, which comprises the following steps: the method for processing the bright surface of the hub according to any one of the first technical aspect.
The manufacturing method of the wheel hub provided by the second aspect of the present invention includes any one of the processing methods of the bright surface of the wheel hub in the first aspect, so that all the beneficial effects of any one of the above-mentioned technical solutions are achieved, and details are not repeated herein.
The technical scheme of the third aspect of the invention provides a hub, which is prepared by using the processing method of the hub of the second aspect.
The hub provided by the technical scheme of the third aspect of the present invention is prepared by the processing method of the hub according to any one of the technical schemes of the second aspect, so that all the beneficial effects of any one of the technical schemes are achieved, and no further description is provided herein.
A fourth aspect of the present invention provides a hub machining system for implementing the steps in the hub bright surface machining method according to any one of the first aspect, where the hub bright surface machining system includes: the photographing equipment is used for scanning the blank workpiece; the processor is connected with the photographing equipment and used for receiving a scanning result, constructing a three-dimensional model of the blank workpiece according to the scanning result and determining a processing path for processing the blank workpiece according to the three-dimensional model; and the turning device is connected with the processor and is used for turning the blank workpiece according to the processing path.
It can be understood that, in the process of processing the bright surface of the hub, the processing system provided by the technical scheme can be arranged to process the bright surface of the hub, and similarly, in the process of manufacturing the hub, the processing system provided by the technical scheme can be arranged to process the bright surface of the hub.
The processing system for a wheel hub provided in the fourth aspect of the present invention uses any one of the processing methods for a bright surface of a wheel hub in the first aspect of the present invention, so that all the beneficial effects of any one of the above-mentioned technical solutions are achieved, and details are not repeated herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block flow diagram of a method for machining a bright surface of a hub in one embodiment of the present invention;
FIG. 2 is a block flow diagram of step S20 in one embodiment of the invention;
FIG. 3 is a block flow diagram of step S40 in one embodiment of the invention;
FIG. 4 is a block flow diagram of step S44 in one embodiment of the invention;
FIG. 5 is a block flow diagram of step S45 in one embodiment of the invention;
FIG. 6 is a block flow diagram of a method for machining a bright face of a hub in accordance with one embodiment of the present invention;
fig. 7 is a schematic structural view of a processing system of a hub in an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the names of the components in fig. 7 is:
a photographing apparatus 10; a processor 20; turning device 30.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The following describes a method for processing a bright surface of a hub, a method for processing a hub, a processing system and a hub in some embodiments of the present invention with reference to fig. 1 to 7.
Some embodiments of the present application provide a method of processing a bright surface of a hub.
As shown in fig. 1, the processing method of the bright surface of the hub includes: step S20, obtaining a three-dimensional model of a blank workpiece of the hub; step S40, analyzing the three-dimensional model, and determining the processing path of the bright surface of the hub according to the analysis result; step S60, turning the blank workpiece according to the processing path; and step S80, obtaining the bright surface of the hub.
According to the method for processing the bright surface of the hub, provided by the embodiment, the processing path of the bright surface of the hub corresponding to the blank workpiece is set according to the specific shape of the blank workpiece of each hub, so that a fixed processing program in the related technology is finely adjusted and corrected to compensate the difference between the blank workpieces of each hub, the size of the bright surface processed by turning through the method for processing the bright surface of the hub provided by the embodiment is unified as much as possible, the deviation between hubs processed by different blank workpieces is reduced, the standardization of the produced product is facilitated, and the product yield is improved. And further, the product yield is improved, and the production cost is reduced.
In some embodiments, as shown in fig. 2, step S20 includes: step S22, photographing the blank workpiece by using photographing equipment to obtain an image of the blank workpiece; and step S24, performing three-dimensional modeling according to the image to obtain a corresponding three-dimensional model.
Before a blank workpiece is processed, scanning and imaging the surface to be processed of the blank workpiece, and performing three-dimensional modeling on the shape of the blank workpiece in a processor to form a three-dimensional model. Therefore, the data analysis of the three-dimensional model is convenient to carry out through the processor, and the required data is extracted, so that sufficient data support is provided for fine adjustment and correction of the processing program. Further, the size of the obtained three-dimensional model is consistent with the size of the blank workpiece. Compared with the reduction or the amplification in the same proportion, the size of the three-dimensional model is set to be consistent with that of the blank workpiece, so that the deviation among different blank workpieces can be reflected more truly, and the fine adjustment and correction precision is improved.
In some embodiments, step S22 may be to use an industrial camera to take pictures of the blank workpiece from multiple angles to obtain images of the blank workpiece.
The industrial camera is used for recording a blank workpiece to be processed in real time, and shooting the shape of the blank workpiece from each direction, so that a three-dimensional image is synthesized according to images in multiple directions for modeling.
In other embodiments, step S22 may be to use a 3D camera to take a picture of the blank workpiece along the axial direction of the blank workpiece to obtain an image of the blank workpiece.
Use 3D camera speed of shooing faster, need not set up parts such as arm simultaneously and rotate the blank work piece. Wherein, can set up the 3D camera in the top of blank work piece, carry the below of process 3D camera in proper order a plurality of in blank work piece through carrying the track to reduce parts such as arm, reduced equipment cost, also simplified the shooting step, improved machining efficiency.
In some embodiments, as shown in fig. 3, step S40 includes: step S41, selecting a point on the central axis of the three-dimensional model as a central point; step S42, drawing a plurality of circular curves with different diameters by taking the central point as a circle center, wherein the plurality of circular curves form concentric circles perpendicular to the central axis; step S43, extracting a plurality of highest points of a plurality of circular curves with different diameters which are respectively projected to the three-dimensional model along the direction of the central axis; step S44, determining the outer contour line of the bright surface of the hub according to the plurality of peaks; and step S45, converting the outer contour line into a processing path of the bright surface of the hub.
According to the processing method of the bright surface of the hub, circular curves with different diameters are set, the circular curves are projected on the three-dimensional model to determine the processing reference points, and the processed outer contour line can be determined through the reference points. It should be noted that the number of reference points, that is, the maximum points, is not too small, and by increasing the number of circular curves, a larger number of maximum points can be obtained, so that the accuracy of the outer contour line can be improved, for example, for a curve, the more points on the curve, the higher the accuracy of the line. Further, a reference point may be determined in the height range of 0-1mm, where height refers to the distance in the central axial direction.
Of course, the reference points and thus the outer contour lines can be determined in different ways. As long as the standard of the bright surface capable of being processed uniformly is included in the protection scope of the present application, it is not described herein any more.
It is worth mentioning that the processing reference is reasonably and correctly selected, the consistency of the processing quality can be ensured, the processing efficiency is improved, and the dependence on the skill level of workers is reduced. Meanwhile, the proper reference is selected to be considered from the aspects of machining precision and the like, so that the positioning accuracy of the blank workpiece is ensured, the machining precision is improved, and errors are reduced.
In some embodiments, as shown in fig. 4, step S44 includes: step S442, projecting the plurality of highest points onto an axial section of the three-dimensional model; step S444, a plurality of highest points projected on the axial cross section are connected to form an outer contour line.
In some embodiments, as shown in fig. 5, step S45 includes: step S452, establishing an X-Y-Z three-dimensional coordinate system by taking the direction of the central axis as a Z axis and a plane perpendicular to the central axis as an X-Y plane; step S454, extracting the positioning coordinates of the outer contour line on the three-dimensional coordinate system; and step 456, generating a machining path according to the positioning coordinates. Wherein, the location coordinates include: the coordinates of the intersection of the outer contour line with the X-Z plane and the coordinates of the intersection of the outer contour line with the Y-Z plane.
By setting the coordinate system, corresponding coordinates can be conveniently extracted according to each point on the outer contour line, and the processing direction can be determined according to the coordinate relation between two adjacent points, specifically, the cutting point, the cutter shaft direction, the rotating direction and the like of a turning device such as a processing cutter and the like, so that the processing track can be determined, and the processing can be conveniently realized by setting a corresponding program. Like this, through the turning device of computer control etc. the operation is more convenient, simultaneously through the initial point that sets up the coordinate, has realized the location to the blank work piece, also need not to put forward again and alignment, has improved the efficiency and the quality of processing.
In some embodiments, as shown in fig. 6, between step S60 and step S80, further comprising: step S72, grinding and polishing the turned blank workpiece; and step S74, coating the blank workpiece after polishing.
Polishing and coating are carried out on the turned blank workpiece, surface burrs can be removed through polishing, the bright surface of the hub is smoother, and bright powder is sprayed to the machining surface of the hub through coating, so that the machining surface has a better bright surface effect.
Some embodiments of the present application provide a manufacturing method of a wheel hub, including the processing method of the bright surface of the wheel hub in any of the above embodiments.
At present, the existing production process flow of the automobile hub comprises the following steps: preparing a blank workpiece, and carrying out mechanical processing, inspection, coating and the like on the blank workpiece. Wherein preparing the blank workpiece comprises: melting, refining, material boundary, casting, flaw detection, heat treatment and the like. The step in the processing method of the bright surface of the hub in any embodiment belongs to a step in a process flow of machining a blank workpiece or a machined rough turning workpiece or a step of polishing the surfaces of local spokes and rims after coating.
Therefore, the manufacturing method of the wheel hub in this embodiment includes the processing method of the bright surface of the wheel hub in any of the above embodiments, so that all the advantages of any of the above embodiments are achieved, and further description is omitted here.
Some embodiments of the present application provide a hub prepared by the manufacturing method of the hub in the above embodiments. The hub bright surface is prepared by the hub bright surface processing method in any embodiment.
The hub provided by this embodiment is prepared by the manufacturing method of the hub in the above embodiment, and the bright surface of the hub is prepared by the processing method of the bright surface of the hub in any one of the above embodiments, so that all the beneficial effects of any one of the above embodiments are achieved, and details are not repeated herein.
Some embodiments of the present application provide a hub machining system.
As shown in fig. 7, the processing system of the wheel hub includes a photographing apparatus 10, a processor 20 and a lathing device 30. The photographing device 10 is used for scanning blank workpieces; the processor 20 is connected with the photographing device 10 and is used for receiving the scanning result, constructing a three-dimensional model of the blank workpiece according to the scanning result, and determining a processing path for processing the blank workpiece according to the three-dimensional model; the turning device 30 is connected to the processor 20 for turning the blank workpiece according to the machining path.
Further, the processor 20 includes a three-dimensional modeling system for building a three-dimensional model of the blank workpiece based on the scanning results and a data analysis and extraction system for extracting the required data from the three-dimensional model and converting it into a programming language to the turning device 30 so that the turning device 30 programs the blank workpiece.
The processing system for a wheel hub provided in this embodiment uses the processing method for the bright surface of the wheel hub in any of the above embodiments, so that all the advantages of any of the above embodiments are achieved, and further description is omitted here.
The following specifically describes a processing method and a processing system for a bright surface of a hub, which are provided by the present application, by taking a fine-turning bright surface processing method of an aluminum alloy hub as an example.
At present, the processing of the bright surface of the finish turning bright surface hub in the production process does not detect and judge the actual size of the processed surface, but programs according to the theoretical size and processes by using processing equipment, all the programs used by the same type of hub are consistent and do not change, however, the same type of hub produces a little different blanks under different processes and time of different dies or the same die, if the hub is processed according to a fixed program without fine adjustment and compensation, the size of the processed finished hub is deviated, and the reject ratio is increased, so that a new optimization mode is urgently needed at present to control the processing program, and the one-time qualification rate of the processed product is improved.
Therefore, a specific embodiment of the application provides a processing method of finish turning bright surface of an aluminum alloy hub, which comprises the steps of establishing a three-dimensional model of a three-dimensional shape of a blank workpiece to be processed in a computer by a three-dimensional visual shooting modeling technology, wherein the three-dimensional model is the same as the actual blank in size, then calculating by a computer background, making circles with different diameters by taking the center of the model as a central point, extracting peaks in a certain range, connecting a large number of peaks into a line, extracting lines required by people as an outer contour line, analyzing the outer contour line extraction background, taking the center of a circle as an origin as a coordinate system, forming different coordinate points on different points of the outer contour line, converting the coordinate points into a processing program capable of being recognized by equipment processing, transmitting the processing program to a machining device, and then enabling the machining device to process the provided program, and processing the blank.
The processing system for finish turning of the bright surface of the aluminum alloy hub comprises truss type three-dimensional scanning imaging equipment, also called three-dimensional scanning equipment or scanner imaging equipment, wherein the three-dimensional scanning equipment is arranged in front of the processing equipment, scanning imaging is carried out on the processing surface of a semi-finished product of a processed workpiece hub, the shape of the semi-finished product of the processed workpiece hub is subjected to three-dimensional forming at the background, and the semi-finished product of the processed workpiece hub is also called a blank workpiece.
The three-dimensional scanning equipment comprises equipment photographing equipment, a three-dimensional model establishing system, a data analyzing and extracting system and machining equipment (namely turning equipment); the shooting device is used for recording parts required to be machined in real time, shooting the shapes of the parts from all directions and storing the shapes into an internal memory, the three-dimensional model establishing system is used for analyzing and processing the stored pictures and establishing a three-dimensional model, the data analyzing and extracting system is used for analyzing and processing the data of the established model, extracting the required data, forming machining sentences and transmitting the machining sentences to the machining device, and the machining device processes the hub products after acquiring the data.
The equipment photographing equipment can accurately photograph under various light rays to acquire required model information, the progress is high, and the photographing effect is consistent with each size result of the original part. And the three-dimensional model establishing system is used for reading the pictures shot by the shooting system, carrying out background analysis, reordering and background operation and establishing a final three-dimensional model, wherein the size results of the established three-dimensional model and the physical model are consistent. And the data analysis and extraction system is used for carrying out detailed analysis on the established three-dimensional model, extracting a sample (namely an outer contour line which is also a processing reference line) of a required processing line, establishing a coordinate size, converting the coordinate size into a processing program through background operation, and transmitting the processing program to machining equipment. And the machining equipment is used for receiving the machining program compiled by the data analysis system and machining the machining program by using the model, and the machined model has high precision and high qualification rate.
Specifically, in some specific cases, the processing method for finish turning the bright surface of the aluminum alloy hub comprises the following steps: positioning a blank workpiece; photographing the blank workpiece at different angles by using an industrial camera; performing three-dimensional modeling on a blank workpiece by using computer background manufacturing; the computer carries out three-dimensional model analysis and extracts the required processing lines; establishing a coordinate system according to the machining lines, and compiling a machining program; and reading the machining program by the machining equipment, and machining the product.
In this way, in the fine turning bright surface processing method for the aluminum alloy hub provided by the embodiment, a 3D pattern for processing the bright surface of the aluminum alloy hub is formed by a scanner imaging device; after the 3D graph is obtained, a computer device is used for automatically forming a processing path of the bright surface of the aluminum alloy hub, and data of the path is transmitted to a machining device; after the machining path is read by a machining device after the mechanical arm or manual clamping, the machining path is converted into a machining program through system calculation, and the machining amount is automatically compensated to finish the finish turning bright surface machining of the aluminum alloy hub; the hub product processed by the method has higher precision and better quality, and the efficiency of workshop field production and the one-time qualification rate of the product are obviously improved.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A processing method of a bright surface of a hub is characterized by comprising the following steps:
obtaining a three-dimensional model of a blank workpiece of the hub;
analyzing the three-dimensional model, and determining the processing path of the bright surface of the hub according to the analysis result;
turning the blank workpiece according to the processing path;
and obtaining the bright surface of the hub.
2. The hub bright face machining method according to claim 1, wherein the step of obtaining a three-dimensional model of a blank workpiece of the hub comprises:
photographing the blank workpiece by using photographing equipment to obtain an image of the blank workpiece;
and carrying out three-dimensional modeling according to the image to obtain a corresponding three-dimensional model.
3. The processing method of the bright surface of the hub as claimed in claim 2, wherein the step of photographing the blank workpiece by using a photographing apparatus comprises:
photographing the blank workpiece from a plurality of angles by using an industrial camera; or
And photographing the blank workpiece along the axis direction of the blank workpiece by using a 3D camera.
4. The method for processing the bright surface of the hub as claimed in claim 1, wherein the step of analyzing the three-dimensional model and determining the processing path of the bright surface of the hub according to the analysis result comprises:
selecting one point on the central axis of the three-dimensional model as a central point;
drawing a plurality of circular curves with different diameters by taking the central point as a circle center, wherein the plurality of circular curves form concentric circles perpendicular to the central axis;
extracting a plurality of highest points of the circular curves with different diameters which are respectively projected to the three-dimensional model along the direction of the central axis;
determining an outer contour line of a bright surface of the hub according to the plurality of highest points;
and converting the outer contour line into a processing path of the bright surface of the hub.
5. The hub bright surface machining method according to claim 4, wherein the step of determining the outer contour line of the hub bright surface according to the plurality of highest points comprises the steps of:
projecting a plurality of said vertices onto an axial section of said three-dimensional model;
and connecting the plurality of highest points projected onto the shaft section to form an outer contour line.
6. The hub bright face machining method according to claim 4, wherein the step of converting the outer contour line into the hub bright face machining path includes:
establishing an X-Y-Z three-dimensional coordinate system by taking the direction of the central axis as a Z axis and a plane perpendicular to the central axis as an X-Y plane;
extracting the positioning coordinates of the outer contour line on the three-dimensional coordinate system;
generating the machining path according to the positioning coordinates;
wherein the positioning coordinates comprise: coordinates of an intersection of the outer contour line with the X-Z plane and coordinates of an intersection of the outer contour line with the Y-Z plane.
7. The hub bright face machining method according to any one of claims 1 to 6, characterized by comprising, between the step of turning the blank workpiece according to the machining path and the step of obtaining the hub bright face:
grinding and polishing the turned blank workpiece;
and coating the blank workpiece after the grinding and polishing treatment.
8. A method of manufacturing a wheel hub, comprising: the method for processing the bright surface of the hub as claimed in any one of claims 1 to 7.
9. A wheel hub prepared using the method of manufacturing a wheel hub of claim 8.
10. A hub machining system for realizing the steps in the hub bright surface machining method of any one of claims 1 to 7, characterized by comprising:
the photographing equipment is used for scanning the blank workpiece;
the processor is connected with the photographing equipment and used for receiving a scanning result, constructing a three-dimensional model of the blank workpiece according to the scanning result and determining a processing path for processing the blank workpiece according to the three-dimensional model;
and the turning device is connected with the processor and is used for turning the blank workpiece according to the processing path.
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| CN202010235524.4A CN111413933A (en) | 2020-03-30 | 2020-03-30 | Processing method of bright surface of hub, manufacturing method of hub and processing system of hub |
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| CN202010235524.4A CN111413933A (en) | 2020-03-30 | 2020-03-30 | Processing method of bright surface of hub, manufacturing method of hub and processing system of hub |
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| CN113000910A (en) * | 2021-03-01 | 2021-06-22 | 创新奇智(上海)科技有限公司 | Hub machining auxiliary method and device, storage medium, control device and system |
| CN114693879A (en) * | 2022-03-16 | 2022-07-01 | 哈尔滨理工大学 | Large forged part auxiliary alignment method based on three-dimensional reconstruction technology |
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