CN108195286B - Wheel hub detection method, device and system and control equipment - Google Patents
Wheel hub detection method, device and system and control equipment Download PDFInfo
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- CN108195286B CN108195286B CN201711419595.4A CN201711419595A CN108195286B CN 108195286 B CN108195286 B CN 108195286B CN 201711419595 A CN201711419595 A CN 201711419595A CN 108195286 B CN108195286 B CN 108195286B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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- G01B5/0025—Measuring of vehicle parts
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Abstract
The invention provides a hub detection method, a device, a system and control equipment, and relates to the technical field of detection. The hub detection method is applied to control equipment of a hub detection system, and the system further comprises a laser displacement sensor group, a motor and a data acquisition unit. The method comprises the following steps: controlling a motor to drive a hub to be tested to rotate; controlling the plurality of laser displacement sensors to acquire the distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end according to a preset frequency respectively, and acquiring a plurality of groups of distance data acquired by the plurality of laser displacement sensors after the hub to be detected rotates for at least one circle; respectively carrying out filtering processing on the multiple groups of distance data to obtain multiple groups of processed calculation data; and respectively obtaining the jumping quantity corresponding to the first end, the second end, the third end and the fourth end based on the multiple groups of calculated data. The hub detection method can conveniently achieve the acquisition of the runout amount of the hub to be detected.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a hub detection method, a device, a system and control equipment.
Background
In the production of the actual hub, the influence of processes such as manufacturing, processing, coating and the like can be caused, the runout quantity exists in the axial direction and the radial direction at the same time, the vibration can be caused in the vertical direction of a vehicle due to the existence of the runout quantity in the radial direction, and the phenomenon of clamping a tire can be caused in the serious case; the axial runout quantity can aggravate the abrasion of the tire, and the tire burst phenomenon can occur in serious cases. Therefore, it is very necessary to detect the amount of hub runout after hub production.
The existing measurement of the end radial run-out of the hub is usually that the end face run-out and the radial run-out of the hub are manually measured by a micrometer, and a large amount of manpower is needed to carry the hub, so that manpower and material resources are wasted, and the detection cost is increased.
Disclosure of Invention
In view of this, the embodiment of the invention provides a method, a device, a system and a control device for detecting a hub.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, an embodiment of the present invention provides a hub detection method, which is applied to a control device of a hub detection system, where the system further includes a laser displacement sensor group, a motor, and a data acquisition unit, where a plurality of laser displacement sensors of the laser displacement sensor group are respectively and fixedly disposed at a first end, in a radial direction, of a first side surface facing a hub to be detected, a second end, in a radial direction, of a second side surface, a third end, in an axial direction, of an outer circumferential surface, and a fourth end, the motor is rotatably connected to the hub, the plurality of laser displacement sensors are connected to the control device through the data acquisition unit, and the motor is connected to the control device, where the method includes: controlling the motor to drive the hub to be tested to rotate; controlling the plurality of laser displacement sensors to acquire distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end according to a preset frequency respectively, and acquiring a plurality of groups of distance data acquired by the plurality of laser displacement sensors after the hub to be detected rotates for at least one circle; respectively carrying out filtering processing on the multiple groups of distance data to obtain multiple groups of processed calculation data; and respectively obtaining the jumping amount corresponding to the first end, the jumping amount corresponding to the second end, the jumping amount corresponding to the third end and the jumping amount corresponding to the fourth end based on the multiple groups of calculation data.
In a second aspect, an embodiment of the present invention provides a hub detecting device, which is applied to a control device of a hub detecting system, the system further includes a laser displacement sensor group, a motor, and a data acquisition unit, a plurality of laser displacement sensors of the laser displacement sensor group are respectively and fixedly disposed at a first end along a radial direction of a first side surface facing a hub to be detected, a second end along the radial direction of a second side surface, a third end along an axial direction of an outer circumferential surface, and a fourth end, the motor is rotatably connected to the hub, the plurality of laser displacement sensors are connected to the control device through the data acquisition unit, and the motor is connected to the control device, the device includes: the device comprises a motor control module, an acquisition control module, a data processing module and a jumping amount calculation module, wherein the motor control module is used for controlling the motor to drive the hub to be tested to rotate; the acquisition control module is used for controlling the plurality of laser displacement sensors to acquire the distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end according to a preset frequency respectively so as to obtain a plurality of groups of distance data acquired by the plurality of laser displacement sensors after the hub to be detected rotates for at least one circle; the data processing module is used for respectively carrying out filtering processing on the multiple groups of distance data to obtain multiple groups of processed calculation data; the jumping amount calculation module is configured to obtain, based on the multiple sets of calculation data, a jumping amount corresponding to the first end, a jumping amount corresponding to the second end, a jumping amount corresponding to the third end, and a jumping amount corresponding to the fourth end, respectively.
In a third aspect, an embodiment of the present invention provides a control device, which includes a memory and a processor, where the memory stores computer instructions, and when the computer instructions are read and executed by the processor, the processor is caused to execute the hub detection method provided in the first aspect.
In a fourth aspect, an embodiment of the present invention provides a hub detection system, where the system includes a control device, a laser displacement sensor group, a motor, and a data acquisition unit, where multiple laser displacement sensors of the laser displacement sensor group are respectively and fixedly disposed at a first end, in a radial direction, of a first side surface facing a hub to be detected, a second end, in a radial direction, of a second side surface, a third end, in an axial direction, of an outer circumferential surface, and a fourth end, the motor is rotatably connected to the hub, the multiple laser displacement sensors are connected to the control device through the data acquisition unit, and the motor is connected to the control device, where the control device is configured to control the motor to operate, and is further configured to control the multiple laser displacement sensors to operate according to a preset frequency; the motor is used for driving the hub to be tested to rotate; the plurality of laser displacement sensors are used for acquiring the distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end; the control equipment is further used for obtaining multiple groups of distance data collected by the laser displacement sensors after the hub to be tested rotates for at least one circle, filtering the multiple groups of distance data respectively to obtain processed multiple groups of calculation data, and obtaining the jumping amount corresponding to the first end, the jumping amount corresponding to the second end, the jumping amount corresponding to the third end and the jumping amount corresponding to the fourth end based on the multiple groups of calculation data respectively.
According to the wheel hub detection method, the device, the system and the control equipment provided by the embodiment of the invention, the motor is controlled to drive the wheel hub to be detected to rotate, then the plurality of laser displacement sensors are controlled to respectively acquire the distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end of the wheel hub to be detected according to the preset frequency, a plurality of groups of distance data acquired by the plurality of laser displacement sensors after the wheel hub to be detected rotates for at least one circle are acquired, then the plurality of groups of distance data are respectively subjected to filtering processing, a plurality of groups of processed calculated data are acquired, and finally the jumping quantity corresponding to the first end, the jumping quantity corresponding to the second end, the jumping quantity corresponding to the third end and the jumping quantity corresponding to. According to the wheel hub detection method, the device, the system and the control equipment, the distance data of the response position of the wheel hub to be detected are acquired through the laser displacement sensor, the jumping amount corresponding to each position is calculated after the distance data are processed, so that the jumping amount of the corresponding position of the wheel hub to be detected can be conveniently detected, and the problems that manpower and material resources are wasted and the cost is high in the wheel hub detection method in the prior art are solved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a block diagram of a hub detection system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram illustrating positions of a plurality of laser displacement sensors in a hub detection system according to an embodiment of the present invention
FIG. 3 is a block diagram of a control device provided by an embodiment of the present invention;
FIG. 4 is a flow chart illustrating a hub detection method provided by an embodiment of the present invention;
fig. 5 is a flowchart illustrating step S130 in the hub detecting method according to the embodiment of the present invention;
FIG. 6 is a block diagram of a hub testing device provided in accordance with an embodiment of the present invention;
fig. 7 is a block diagram illustrating a data processing module in the wheel hub detecting device according to the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Fig. 1 shows a block diagram of a hub detection system according to an embodiment of the present invention. As shown in fig. 1, the hub detection system 10 may include a control device 100, a laser displacement sensor set 200, a motor 300, and a data acquisition unit 400. The laser sensor group 200 includes a plurality of laser sensors 210. The plurality of laser displacement sensors 210 are connected with the control device 100 through the data acquisition unit 400, and the control device 100 is connected with the motor 300 through the motor driving module 500. The motor 300 can be rotatably connected with the hub to be tested.
In the embodiment of the present invention, as shown in fig. 2, a plurality of laser displacement sensors 210 are respectively and fixedly disposed on a first end 611 facing the first side surface 610 of the wheel hub 600 to be measured in the radial direction, a second end 621 of the second side surface 620 in the radial direction, a third end 631 of the outer circular surface 630 in the axial direction, and a fourth end 632.
Fig. 3 shows a block diagram of a control device applicable to an embodiment of the present invention. As shown in fig. 3, the control device 100 includes a memory 102, a memory controller 104, one or more (only one shown) processors 106, a peripheral interface 108, a radio frequency module 110, an audio module 112, a display unit 114, and the like. These components communicate with each other via one or more communication buses/signal lines 116.
The memory 102 may be used to store software programs and modules, such as program instructions/modules corresponding to the hub detection method and apparatus in the embodiment of the present invention, and the processor 106 executes various functional applications and data processing, such as the hub detection method provided in the embodiment of the present invention, by running the software programs and modules stored in the memory 102.
The memory 102 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. Access to the memory 102 by the processor 106, and possibly other components, may be under the control of the memory controller 104.
The peripheral interface 108 couples various input/output devices to the processor 106 as well as to the memory 102. In some embodiments, the peripheral interface 108, the processor 106, and the memory controller 104 may be implemented in a single chip. In other examples, they may be implemented separately from the individual chips.
The rf module 110 is used for receiving and transmitting electromagnetic waves, and implementing interconversion between the electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices.
The display unit 114 provides a display interface between the control device 100 and a user. In particular, display unit 114 displays video output to the user, the content of which may include text, graphics, video, and any combination thereof.
It will be appreciated that the configuration shown in fig. 3 is merely illustrative and that the control device 100 may also include more or fewer components than shown in fig. 3, or have a different configuration than shown in fig. 3. The components shown in fig. 3 may be implemented in hardware, software, or a combination thereof.
First embodiment
Fig. 4 shows a flowchart of a hub detection method according to an embodiment of the present invention. The hub detection method is applied to control equipment of a hub detection system, and the hub detection system further comprises a laser displacement sensor group, a motor and a data acquisition unit. A plurality of laser displacement sensors of the laser displacement sensor group are respectively and fixedly arranged at a first end along the radial direction of a first side surface, a second end along the radial direction of a second side surface, a third end along the axial direction of an outer circular surface and a fourth end, which are opposite to the wheel hub to be detected, a motor is rotationally connected with the wheel hub, the plurality of laser displacement sensors are connected with a control device through a data acquisition unit, and the motor is connected with the control device. In a preferred embodiment, the number of the laser displacement sensors in the laser displacement sensor group may be 4, and the 4 laser displacement sensors correspond to the first end, the second end, the third end and the fourth end, respectively.
Referring to fig. 4, the hub detecting method includes:
step S110: and controlling the motor to drive the hub to be tested to rotate.
When the jumping amount of the hub to be detected is detected, the hub to be detected can be arranged in the hub detection system, and then the motor is controlled to rotate, so that the hub to be detected rotates along with the rotation of the motor. When the hub to be detected rotates, each position of the circumference passes through the position just opposite to the laser displacement sensor, so that the jumping quantity of the circumference of the hub to be detected is detected conveniently.
In the embodiment of the invention, the motor can be controlled to drive the hub to be tested to rotate at the speed of 1-12 circles in one minute. Of course, the rotation speed of the specific motor is not limited in the embodiment of the present invention.
Step S120: and controlling the plurality of laser displacement sensors to acquire the distances between the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end according to a preset frequency respectively, and acquiring a plurality of groups of distance data acquired by the plurality of laser displacement sensors after the hub to be detected rotates for at least one circle.
After the wheel hub to be measured rotates along with the rotation of the motor, the distances between the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end are acquired by the plurality of laser displacement sensors according to the preset frequency.
It can be understood that one of the plurality of laser displacement sensors detects a distance from the surface of the first end, one of the plurality of laser displacement sensors detects a distance from the surface of the second end, one of the plurality of laser displacement sensors detects a distance from the surface of the third end, and one of the plurality of laser displacement sensors detects a distance from the surface of the fourth end.
In the embodiment of the invention, each laser displacement sensor can be controlled to detect the distance of the surface of the hub to be detected according to the frequency of once acquisition of 50-70 us. Preferably, the laser displacement sensor can be controlled to detect at the frequency of one acquisition of 60 us.
In the embodiment of the invention, a plurality of groups of distance data respectively detected by a plurality of laser displacement sensors of a hub to be detected, which rotates for at least one circle, are obtained.
It will be appreciated that each laser displacement sensor corresponds to a set of distance data, each set of distance data being the detected distance to a corresponding plurality of points along the entire circumference of the hub under test.
Thus, a plurality of sets of distance data corresponding to the plurality of laser displacement sensors can be obtained.
Step S130: and respectively carrying out filtering processing on the multiple groups of distance data to obtain multiple groups of processed calculation data.
After obtaining the multiple groups of distance data, filtering the multiple groups of distance data respectively in order to eliminate errors generated during detection.
In the embodiment of the present invention, referring to fig. 5, step S130 may include:
step S131: and respectively carrying out first filtering processing on the multiple groups of distance data based on a preset amplitude filtering algorithm to obtain multiple groups of processing data.
Specifically, step S131 may include:
judging whether the absolute value of the difference value between the nth distance data in a group of distance data and the (n-1) th distance data in the distance data is smaller than or equal to a first preset value or not; and if not, deleting the nth distance data to obtain the processing data.
It can be understood that, in two adjacent distance data, if the difference between the next distance data and the previous distance data is greater than the first preset difference, the next distance data is deleted, and the previous distance data is used as the next distance data, so as to replace the next distance data. After the above-described processing is performed on the set of distance data, a set of processed data is obtained.
In the embodiment of the invention, after each group of distance data is processed according to the method, a plurality of groups of processing data are obtained. Therefore, the pulse interference caused by accidental factors can be effectively overcome, and errors caused by the pulse interference in the processed data are avoided.
Step S132: and respectively carrying out second filtering processing on the multiple groups of processing data based on a preset recursive average filtering algorithm to obtain multiple groups of calculation data.
Specifically, step S132 may include:
obtaining an arithmetic mean value of a plurality of processing data from the m-T th to the m-th in a group of the processing data, wherein T is a second preset value; and replacing the mth processing data with the arithmetic mean value to obtain the calculation data.
It can be understood that, based on the above method, the processing data except the first T processed data in a group of processed data can be processed as described above, so that the periodic interference can be well suppressed, the smoothness is high, and the hub detection method can be applied to the high-frequency oscillation condition.
After each group of processing data is processed according to the method, a plurality of groups of calculation data can be obtained.
Step S140: and respectively obtaining the jumping amount corresponding to the first end, the jumping amount corresponding to the second end, the jumping amount corresponding to the third end and the jumping amount corresponding to the fourth end based on the multiple groups of calculation data.
After obtaining the plurality of sets of calculation data, wherein one set of calculation data of the plurality of sets of calculation data corresponds to the first end, one set of calculation data of the plurality of sets of calculation data corresponds to the second end, one set of calculation data of the plurality of sets of calculation data corresponds to the third end, and one set of calculation data of the plurality of sets of calculation data corresponds to the fourth end, and then, based on the plurality of sets of calculation data, the amount of jump corresponding to the first end, the amount of jump corresponding to the second end, the amount of jump corresponding to the third end, and the amount of jump corresponding to the.
Specifically, step S140 may include:
obtaining a maximum value and a minimum value in the y-th group of calculation data in the plurality of groups of calculation data; and calculating the difference value between the maximum value and the minimum value to obtain the jumping amount corresponding to the ith end corresponding to the y-th group of calculated data.
It can be understood that the maximum value in a set of calculation data is subtracted by the minimum value in the set of calculation data, so that the bounce amount corresponding to the ith end corresponding to the set of calculation data can be obtained. For example, the maximum value in the 3 rd group of calculation data corresponding to the third end is subtracted by the minimum value in the 3 rd group of calculation data to obtain the jumping amount corresponding to the third section corresponding to the 3 rd group of calculation data.
Therefore, the jumping amount corresponding to the first end, the jumping amount corresponding to the second end, the jumping amount corresponding to the third end and the jumping amount corresponding to the fourth end can be obtained according to the method.
The first end is the radial end part of the first side surface of the hub to be tested, and the second end is the radial end part of the second side surface of the hub to be tested, so that the jumping amount corresponding to the first end and the jumping amount corresponding to the second end are the end surface jumping amount of the hub to be tested. Because the third end and the fourth end are two ends of the outer circular surface of the hub to be tested along the axial direction, the runout amount corresponding to the third end and the runout amount corresponding to the fourth end are the radial runout amount of the hub to be tested.
Therefore, the hub detection method can obtain the end face runout amount and the radial runout amount of the hub to be detected.
In the embodiment of the present invention, the runout amount corresponding to the first end, the runout amount corresponding to the second end, the runout amount corresponding to the third end, and the runout amount corresponding to the fourth end may also be compared with a preset runout amount, where the preset runout amount is a maximum runout amount allowed by a standard of the hub, so as to evaluate the runout amount of the hub to be tested.
Therefore, the hub detection method may further include:
judging whether the jumping amount corresponding to the first end, the second end, the third end and the fourth end is smaller than or equal to a preset jumping amount or not; and if so, outputting the information that the jumping amount of the hub to be tested is normal.
It can be understood that when it is determined that the runout amount corresponding to the first end, the runout amount corresponding to the second end, the runout amount corresponding to the third end, and the runout amount corresponding to the fourth end are all less than or equal to the maximum runout amount allowed by the standard of the hub, it indicates that the runout amount of the hub is normal, and information that the runout amount of the hub to be tested is normal may be output and displayed, so that a user knows that the runout amount of the hub to be tested is normal.
The hub detection method provided by the first embodiment of the invention drives the hub to be detected to rotate by controlling the motor, then controls the laser displacement sensors for detecting the runout quantities of the four positions of the hub to be detected to detect the distance of the surface of the hub to be detected, obtains multiple groups of distance data of at least one circle of rotation of the hub, then calculates the runout quantities of the four positions of the hub after filtering data processing is carried out on the obtained distance data, and obtains the end face runout quantity and the radial runout quantity of the hub. The wheel hub jumping amount detection device can conveniently detect the jumping amount of the wheel hub to be detected, reduce manpower and material resources, avoid errors generated during manual contact measurement and improve the detection precision of the jumping amount of the wheel hub to be detected.
Second embodiment
The invention provides a hub detection device in a second embodiment. This wheel hub detection device is applied to wheel hub detecting system's controlgear, the system still includes laser displacement sensor group, motor and data acquisition unit, a plurality of laser displacement sensors of laser displacement sensor group are fixed respectively and are set up just to the wheel hub that awaits measuring first side along radial first end, the radial second end of second side, outer disc along axial third end and fourth end, the motor with wheel hub rotates and connects, a plurality of laser displacement sensors pass through the data acquisition unit with controlgear connects, the motor with controlgear connects. Referring to fig. 6, the hub detecting device 700 includes: a motor control module 710, an acquisition control module 720, a data processing module 730, and a jerk amount calculation module 740. The motor control module 710 is configured to control the motor to drive the hub to be tested to rotate; the acquisition control module 720 is configured to control the plurality of laser displacement sensors to acquire distances from the surface of the first end, the surface of the second end, the surface of the third end, and the surface of the fourth end according to a preset frequency, respectively, and obtain a plurality of sets of distance data acquired by the plurality of laser displacement sensors after the hub to be measured rotates for at least one week; the data processing module 730 is configured to perform filtering processing on the multiple sets of distance data respectively to obtain multiple sets of processed calculation data; the runout amount calculating module 740 is configured to obtain the runout amount corresponding to the first end, the runout amount corresponding to the second end, the runout amount corresponding to the third end, and the runout amount corresponding to the fourth end based on the plurality of sets of calculation data, respectively.
In an embodiment of the present invention, referring to fig. 7, the data processing module 730 may include a first data processing unit 731 and a second data processing unit 732. The first data processing unit 731 is configured to perform first filtering processing on the multiple sets of distance data respectively based on a preset amplitude filtering algorithm, so as to obtain multiple sets of processing data; the second data processing unit 732 is configured to perform second filtering processing on the multiple sets of processing data based on a preset recursive average filtering algorithm, respectively, to obtain the multiple sets of calculation data.
In this embodiment of the present invention, the first data processing unit 731 is specifically configured to determine whether an absolute value of a difference between an nth distance data in a set of distance data and an n-1 st distance data in the set of distance data is less than or equal to a first preset value; and if not, deleting the nth distance data to obtain the processing data.
In this embodiment of the present invention, the first data processing unit 732 is specifically configured to obtain an arithmetic average of a plurality of processing data from m-T to m-th in a group of the processing data, where T is a second preset value; and replacing the mth processing data with the arithmetic mean value to obtain the calculation data.
In an embodiment of the present invention, the jitter amount calculation module 740 may include a first calculation unit and a second calculation unit. The first calculation unit is used for obtaining the maximum value and the minimum value in the y-th group of calculation data in the plurality of groups of calculation data; and the second calculating unit is used for calculating the difference value between the maximum value and the minimum value to obtain the jumping amount corresponding to the ith end corresponding to the y-th group of calculated data.
In an embodiment of the present invention, the hub detecting module 700 may further include a bounce amount determining module and an executing module. The jumping amount judging module is used for judging whether the jumping amount corresponding to the first end, the second end, the third end and the fourth end is smaller than or equal to a preset jumping amount or not; the execution module is used for outputting the information that the jumping amount of the hub to be tested is normal when the jumping amount corresponding to the first end, the jumping amount corresponding to the second end, the jumping amount corresponding to the third end and the jumping amount corresponding to the fourth end are all smaller than or equal to a preset jumping amount.
Third embodiment
A third embodiment of the present invention provides a control device 100, please refer to fig. 3, wherein the control device 100 includes a memory 102 and a processor 106, the memory 102 stores computer instructions, and when the computer instructions are read and executed by the processor 106, the processor 106 is caused to execute the hub detecting method according to the first embodiment of the present invention.
Fourth embodiment
A fourth embodiment of the present invention provides a wheel hub detecting system 10, please refer to fig. 1, which may include a control device 100, a laser displacement sensor set 200, a motor 300, and a data collecting unit 400. The laser sensor group 200 includes a plurality of laser sensors 210. The plurality of laser displacement sensors 210 are connected with the control device 100 through the data acquisition unit 400, and the control device 100 is connected with the motor 300 through the motor driving module 500. The motor 300 can be rotatably connected with the hub to be tested.
In the embodiment of the present invention, the number of the laser displacement sensors 210 in the laser displacement sensor group 200 may be 4. As shown in fig. 2, the 4 laser displacement sensors 210 are respectively and fixedly disposed at a first end 611 facing the first side surface 610 of the hub 600 to be measured along the radial direction, a second end 621 of the second side surface 620 along the radial direction, a third end 631 of the outer circular surface 630 along the axial direction, and a fourth end 632.
In the embodiment of the present invention, the control device 100 is configured to control the motor 300 to operate, and is further configured to control the plurality of laser displacement sensors 210 to operate according to preset frequencies respectively; the motor 300 is used for driving the hub to be tested to rotate; the plurality of laser displacement sensors 210 are used for acquiring the distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end; the control device 100 is further configured to obtain multiple sets of distance data acquired by the laser displacement sensors 210 after the hub to be tested rotates for at least one week, filter the multiple sets of distance data respectively to obtain processed multiple sets of calculation data, and obtain the amount of runout corresponding to the first end, the amount of runout corresponding to the second end, the amount of runout corresponding to the third end, and the amount of runout corresponding to the fourth end based on the multiple sets of calculation data.
In summary, according to the wheel hub detection method, the device, the system, and the control apparatus provided in the embodiments of the present invention, the motor is controlled to drive the wheel hub to be detected to rotate, then the plurality of laser displacement sensors are controlled to respectively acquire the distances between the surface of the first end, the surface of the second end, the surface of the third end, and the surface of the fourth end of the wheel hub to be detected according to the preset frequency, so as to obtain a plurality of sets of distance data acquired by the plurality of laser displacement sensors after the wheel hub to be detected rotates for at least one week, then the plurality of sets of distance data are respectively filtered, so as to obtain a plurality of sets of processed data, and finally the amount of runout corresponding to the first end, the amount of runout corresponding to the second end, the amount of runout corresponding to. According to the wheel hub detection method, the device, the system and the control equipment, the distance data of the response position of the wheel hub to be detected are acquired through the laser displacement sensor, and the jumping amount corresponding to each position is calculated after the distance data are processed, so that the jumping amount of the wheel hub to be detected can be detected very conveniently, manpower and material resources are reduced, errors generated during manual contact type measurement are avoided, the detection precision of the jumping amount of the wheel hub to be detected is improved, and the problem that manpower and material resources are wasted and the cost is high in the wheel hub detection method in the prior art is solved.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a wheel hub detection method, its characterized in that is applied to wheel hub detecting system's controlgear, the system still includes laser displacement sensor group, motor and data acquisition unit, a plurality of laser displacement sensors of laser displacement sensor group are fixed respectively and are set up just to the wheel hub that awaits measuring first side along radial first end, the radial second end of second side, outer disc along axial third end and fourth end, the motor with wheel hub rotates to be connected, a plurality of laser displacement sensors pass through the data acquisition unit with controlgear connects, the motor with controlgear connects, the method includes:
controlling the motor to drive the hub to be tested to rotate;
controlling the plurality of laser displacement sensors to acquire distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end according to a preset frequency respectively, and acquiring a plurality of groups of distance data acquired by the plurality of laser displacement sensors after the hub to be detected rotates for at least one circle;
respectively carrying out filtering processing on the multiple groups of distance data to obtain multiple groups of processed calculation data;
respectively obtaining the jumping amount corresponding to the first end, the jumping amount corresponding to the second end, the jumping amount corresponding to the third end and the jumping amount corresponding to the fourth end based on the multiple groups of calculation data;
wherein, the filtering the multiple groups of distance data to obtain processed multiple groups of calculation data includes:
respectively carrying out first filtering processing on the multiple groups of distance data based on a preset amplitude filtering algorithm to obtain multiple groups of processing data;
respectively carrying out second filtering processing on the multiple groups of processing data based on a preset recursive average filtering algorithm to obtain multiple groups of calculation data;
the second filtering processing is respectively performed on the multiple groups of processing data based on a preset recursive average filtering algorithm to obtain the multiple groups of calculation data, and the second filtering processing comprises the following steps:
obtaining an arithmetic mean value of a plurality of processing data from the m-T th to the m-th in a group of the processing data, wherein T is a second preset value;
and replacing the mth processing data with the arithmetic mean value to obtain the calculation data.
2. The method according to claim 1, wherein the performing a first filtering process on the plurality of sets of distance data respectively based on a preset amplitude filtering algorithm to obtain a plurality of sets of processed data comprises:
judging whether the absolute value of the difference value between the nth distance data in a group of distance data and the (n-1) th distance data in the distance data is smaller than or equal to a first preset value or not;
and if not, replacing the nth distance data with the (n-1) th distance data to obtain the processing data.
3. The method according to claim 1, wherein the obtaining the amount of jitter corresponding to the first terminal, the amount of jitter corresponding to the second terminal, the amount of jitter corresponding to the third terminal, and the amount of jitter corresponding to the fourth terminal based on the plurality of sets of calculation data comprises:
obtaining a maximum value and a minimum value in the y-th group of calculation data in the plurality of groups of calculation data;
and calculating the difference value between the maximum value and the minimum value to obtain the jumping amount corresponding to the ith end corresponding to the y-th group of calculated data.
4. The method according to claim 1, wherein after obtaining the amount of jitter corresponding to the first terminal, the amount of jitter corresponding to the second terminal, the amount of jitter corresponding to the third terminal, and the amount of jitter corresponding to the fourth terminal, respectively, based on the plurality of sets of calculation data, the method further comprises:
judging whether the jumping amount corresponding to the first end, the second end, the third end and the fourth end is smaller than or equal to a preset jumping amount or not;
and if so, outputting the information that the jumping amount of the hub to be tested is normal.
5. The utility model provides a wheel hub detection device, its characterized in that is applied to wheel hub detecting system's controlgear, the system still includes laser displacement sensor group, motor and data acquisition unit, a plurality of laser displacement sensors of laser displacement sensor group are fixed respectively and are set up just to the wheel hub that awaits measuring first side along radial first end, the radial second end of second side, outer disc along axial third end and fourth end, the motor with wheel hub rotates to be connected, a plurality of laser displacement sensors pass through the data acquisition unit with controlgear connects, the motor with controlgear connects, the device includes: a motor control module, an acquisition control module, a data processing module and a jumping amount calculation module, wherein,
the motor control module is used for controlling the motor to drive the hub to be tested to rotate;
the acquisition control module is used for controlling the plurality of laser displacement sensors to acquire the distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end according to a preset frequency respectively so as to obtain a plurality of groups of distance data acquired by the plurality of laser displacement sensors after the hub to be detected rotates for at least one circle;
the data processing module is used for respectively carrying out filtering processing on the multiple groups of distance data to obtain multiple groups of processed calculation data;
the jumping amount calculation module is configured to obtain, based on the multiple sets of calculation data, a jumping amount corresponding to the first end, a jumping amount corresponding to the second end, a jumping amount corresponding to the third end, and a jumping amount corresponding to the fourth end, respectively;
the data processing module comprises a first data processing unit and a second data processing unit, wherein,
the first data processing unit is used for respectively carrying out first filtering processing on the multiple groups of distance data based on a preset amplitude filtering algorithm to obtain multiple groups of processing data;
the second data processing unit is used for respectively carrying out second filtering processing on the multiple groups of processing data based on a preset recursive average filtering algorithm to obtain multiple groups of calculation data;
the second filtering processing is respectively performed on the multiple groups of processing data based on a preset recursive average filtering algorithm to obtain the multiple groups of calculation data, and the second filtering processing comprises the following steps:
obtaining an arithmetic mean value of a plurality of processing data from the m-T th to the m-th in a group of the processing data, wherein T is a second preset value;
and replacing the mth processing data with the arithmetic mean value to obtain the calculation data.
6. A control device, comprising a memory and a processor, the memory storing computer instructions that, when read and executed by the processor, cause the processor to perform the method of any one of claims 1-4.
7. A wheel hub detection system is characterized by comprising a control device, a laser displacement sensor group, a motor and a data acquisition unit, wherein a plurality of laser displacement sensors of the laser displacement sensor group are respectively and fixedly arranged at a first end along the radial direction of a first side surface of a wheel hub to be detected, a second end along the radial direction of a second side surface, a third end along the axial direction of an outer circular surface and a fourth end, the motor is rotationally connected with the wheel hub, the plurality of laser displacement sensors are connected with the control device through the data acquisition unit, the motor is connected with the control device, wherein,
the control equipment is used for controlling the motor to work and controlling the laser displacement sensors to work according to preset frequency respectively;
the motor is used for driving the hub to be tested to rotate;
the plurality of laser displacement sensors are used for acquiring the distances from the surface of the first end, the surface of the second end, the surface of the third end and the surface of the fourth end;
the control device is further configured to obtain multiple sets of distance data acquired by the multiple laser displacement sensors after the hub to be tested rotates for at least one circle, filter the multiple sets of distance data respectively to obtain processed multiple sets of calculation data, and obtain a runout amount corresponding to the first end, a runout amount corresponding to the second end, a runout amount corresponding to the third end, and a runout amount corresponding to the fourth end based on the multiple sets of calculation data respectively;
the control equipment is specifically used for respectively carrying out first filtering processing on the multiple groups of distance data based on a preset amplitude filtering algorithm to obtain multiple groups of processing data; respectively carrying out second filtering processing on the multiple groups of processing data based on a preset recursive average filtering algorithm to obtain multiple groups of calculation data; the second filtering processing is respectively performed on the multiple groups of processing data based on a preset recursive average filtering algorithm to obtain the multiple groups of calculation data, and the second filtering processing comprises the following steps: obtaining an arithmetic mean value of a plurality of processing data from the m-T th to the m-th in a group of the processing data, wherein T is a second preset value; and replacing the mth processing data with the arithmetic mean value to obtain the calculation data.
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| CN109883372B (en) * | 2019-02-27 | 2024-04-19 | 中信戴卡股份有限公司 | Second harmonic runout simulation hub |
| CN109813493B (en) * | 2019-02-27 | 2023-11-03 | 中信戴卡股份有限公司 | Verification hub and verification method of motor vehicle hub runout testing machine |
| CN110823165B (en) * | 2019-11-19 | 2022-03-25 | 文登恒润锻造有限公司 | Platform, method and device for measuring straightness of forged crankshaft blank and electronic equipment |
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| CN202453684U (en) * | 2011-12-27 | 2012-09-26 | 长安大学 | Control device for measuring runout of automobile wheel hub |
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