Evaluation method and device for burr cylinder sleeve, electronic equipment and storage medium

Abstract

The invention relates to the technical field of vehicles, in particular to a burr cylinder sleeve evaluation method and device, electronic equipment and a storage medium, and the method comprises the steps: determining a plurality of rotation angles of a to-be-detected burr cylinder sleeve and a plurality of target point locations corresponding to each rotation angle; based on each rotation angle, controlling the to-be-detected burr cylinder sleeve to rotate, and measuring height values of a plurality of target point positions corresponding to each rotation angle; and generating a target matrix based on the height values of the plurality of target point positions corresponding to each rotation angle, obtaining a height evaluation ratio, an average gradient value and an average variance value of the to-be-detected burr cylinder sleeve according to the target matrix, and obtaining an evaluation result of the to-be-detected burr cylinder sleeve according to the height evaluation ratio, the average gradient value and the average variance value. Therefore, the problem that the burr quality condition of the burr cylinder sleeve cannot be comprehensively and accurately evaluated in the prior art is solved, whether the burr quality of the burr cylinder sleeve meets engineering requirements or not can be comprehensively detected, and then the cracking condition of the cylinder sleeve is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a method, device, electronic device and storage medium for evaluating burred cylinder liners. Background Art

[0002] During the automobile engine bench test, due to the differences in burr height, shape consistency and uniformity of the burr cylinder liner, when the engine is running under harsh conditions, the burr cylinder liner is at risk of cracking. The current solution to this problem is mainly to detect the surface volume ratio of the burr cylinder liner before it leaves the factory. The surface volume ratio is used to represent the burr height, shape consistency and uniformity of the burr cylinder liner.

[0003] However, evaluating several characteristics of burred cylinder liners through the numerical value of surface area ratio is not comprehensive and accurate enough for the evaluation of the quality of burred cylinder liners, and cannot fully meet the needs of the project. Summary of the invention

[0004] The present application provides a method, device, electronic device and storage medium for evaluating a burred cylinder liner to solve the problem that related technologies cannot comprehensively and accurately evaluate the burr quality of a burred cylinder liner. It can detect whether the burr quality of a burred cylinder liner meets engineering requirements, thereby reducing the cracking of the cylinder liner.

[0005] The first aspect of the present application provides a method for evaluating a burred cylinder liner, comprising the following steps:

[0006] Determine multiple rotation angles of the cylinder liner to be detected for burrs and multiple target points corresponding to each rotation angle;

[0007] Based on each rotation angle, the cylinder sleeve to be detected for burrs is controlled to rotate, and the height values ​​of multiple target points corresponding to each rotation angle are measured;

[0008] Based on the height values ​​of multiple target points corresponding to each rotation angle, a target matrix is ​​generated, and the height evaluation ratio, average gradient value and average variance value of the cylinder liner with burrs to be detected are obtained according to the target matrix, and the evaluation result of the cylinder liner with burrs to be detected is obtained according to the height evaluation ratio, the average gradient value and the average variance value.

[0009] Optionally, in some embodiments, obtaining the height evaluation ratio, average gradient value and average variance value of the burr cylinder liner to be detected according to the target matrix includes:

[0010] Counting the number of all elements in the target matrix that are greater than a preset height value;

[0011] The highly evaluated ratio is obtained by calculating the ratio of the number of elements to the total number of elements of all elements in the target matrix.

[0012] Optionally, in some embodiments, obtaining the height evaluation ratio, average gradient value and average variance value of the burr cylinder liner to be detected according to the target matrix further includes:

[0013] Calculate the gradient value of each element in the target matrix;

[0014] The average gradient value is obtained according to the gradient value of each element.

[0015] Optionally, in some embodiments, obtaining the height evaluation ratio, average gradient value and average variance value of the burr cylinder liner to be detected according to the target matrix further includes:

[0016] Calculate the variance value of each row of the target matrix and the variance value of each column of the target matrix;

[0017] The average variance value is calculated according to the variance value of each row of the target matrix and the variance value of each column of the target matrix.

[0018] Optionally, in some embodiments, obtaining the evaluation result of the burr cylinder liner to be detected according to the height evaluation ratio, the average gradient value and the average variance value includes:

[0019] Determine whether the high evaluation ratio is lower than a first preset threshold, whether the average gradient value is lower than a second preset threshold, and whether the average variance value is lower than a third preset threshold;

[0020] If the height evaluation ratio is lower than the first preset threshold, the average gradient value is lower than the second preset threshold, and the average variance value is lower than the third preset threshold, the evaluation result is qualified.

[0021] The second aspect of the present application provides a burr cylinder liner evaluation device, comprising:

[0022] A determination module, used to determine a plurality of rotation angles of the cylinder liner to be detected for burrs and a plurality of target points corresponding to each rotation angle;

[0023] A measuring module, for controlling the cylinder sleeve to be detected for burrs to rotate based on each rotation angle, and measuring the height values ​​of multiple target points corresponding to each rotation angle;

[0024] An evaluation module is used to generate a target matrix based on the height values ​​of multiple target points corresponding to each rotation angle, and obtain the height evaluation ratio, average gradient value and average variance value of the cylinder liner with burrs to be detected according to the target matrix, and obtain the evaluation result of the cylinder liner with burrs to be detected according to the height evaluation ratio, the average gradient value and the average variance value.

[0025] Optionally, in some embodiments, the evaluation module includes:

[0026] A counting unit, used for counting the number of all elements in the target matrix that are greater than a preset height value;

[0027] The first calculation unit is used to calculate the ratio of the number of elements to the total number of elements of all elements in the target matrix to obtain the highly evaluated ratio.

[0028] Optionally, in some embodiments, the evaluation module further includes:

[0029] A second calculation unit, used to calculate the gradient value of each element in the target matrix;

[0030] A generating unit is used to obtain the average gradient value according to the gradient value of each element.

[0031] Optionally, in some embodiments, the evaluation module further includes:

[0032] A third calculation unit, used for calculating the variance value of each row of the target matrix and the variance value of each column of the target matrix;

[0033] The fourth calculation unit is used to calculate the average variance value according to the variance value of each row of the target matrix and the variance value of each column of the target matrix.

[0034] Optionally, in some embodiments, the evaluation module includes:

[0035] a judgment unit, used to judge whether the high evaluation ratio is lower than a first preset threshold, whether the average gradient value is lower than a second preset threshold, and whether the average variance value is lower than a third preset threshold;

[0036] An evaluation unit is used to determine that the evaluation result is qualified when the height evaluation ratio is lower than a first preset threshold, the average gradient value is lower than a second preset threshold, and the average variance value is lower than a third preset threshold.

[0037] A third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for evaluating a burred cylinder liner as described in the above embodiment.

[0038] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the method for evaluating a burred cylinder liner as described in the above embodiment.

[0039] Therefore, by determining multiple rotation angles of the burred cylinder liner to be detected and multiple target points corresponding to each rotation angle, and based on each rotation angle, controlling the burred cylinder liner to be detected to rotate, and measuring the height values ​​of multiple target points corresponding to each rotation angle, and based on the height values ​​of multiple target points corresponding to each rotation angle, generating a target matrix, and obtaining the height evaluation ratio, average gradient value and average variance value of the burred cylinder liner to be detected according to the target matrix, and obtaining the evaluation result of the burred cylinder liner to be detected according to the height evaluation ratio, average gradient value and average variance value. Therefore, the problem that the related technology cannot comprehensively and accurately evaluate the burr quality of the burred cylinder liner is solved, and whether the burr quality of the burred cylinder liner meets the engineering requirements can be comprehensively detected, thereby reducing the cracking of the cylinder liner.

[0040] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0042] Figure 1 A flow chart of a method for evaluating a burred cylinder liner according to an embodiment of the present application;

[0043] Figure 2 A block diagram of a device for evaluating a burr cylinder liner provided according to an embodiment of the present application;

[0044] Figure 3 It is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0046] The following describes the evaluation method, device, electronic device and storage medium of the burred cylinder liner of the embodiment of the present application with reference to the accompanying drawings. In view of the problem that the related technology mentioned in the above background technology cannot comprehensively and accurately evaluate the burr quality of the burred cylinder liner, the present application provides a method for evaluating the burred cylinder liner, in which a plurality of rotation angles of the burred cylinder liner to be detected and a plurality of target points corresponding to each rotation angle are determined, and based on each rotation angle, the burred cylinder liner to be detected is controlled to rotate, and the height values ​​of the plurality of target points corresponding to each rotation angle are measured, and a target matrix is ​​generated based on the height values ​​of the plurality of target points corresponding to each rotation angle, and the height evaluation ratio, average gradient value and average variance value of the burred cylinder liner to be detected are obtained according to the target matrix, and the evaluation result of the burred cylinder liner to be detected is obtained according to the height evaluation ratio, average gradient value and average variance value. Thus, the problem that the related technology cannot comprehensively and accurately evaluate the burr quality of the burred cylinder liner is solved, and whether the burr quality of the burred cylinder liner meets the engineering requirements can be comprehensively detected, thereby reducing the cracking of the cylinder liner.

[0047] Specifically, Figure 1 A schematic flow chart of a method for evaluating a burred cylinder liner provided in an embodiment of the present application.

[0048] like Figure 1 As shown, the evaluation method of the burr cylinder liner includes the following steps:

[0049] In step S101, a plurality of rotation angles of a cylinder liner to be inspected for burrs and a plurality of target points corresponding to each rotation angle are determined.

[0050] It should be noted that the embodiment of the present application can detect the burr cylinder liner to be detected by a burr cylinder liner detection device, wherein the burr cylinder liner detection device can include a laser rangefinder body, a base device, a controller, a memory, a display, an input device, etc., which are packaged together as a product for detecting and evaluating the burr quality of the burr cylinder liner.

[0051] When inspecting the burr quality of a burred cylinder liner, place the burred cylinder liner on a base device that can rotate the cylinder liner along the center axis. Use a laser rangefinder with controllable horizontal movement on the top to keep the distance between the probe and the center axis of the burred sleeve unchanged. Move and scan the burr area on the outside of the burred sleeve with the laser rangefinder to obtain the height value of each position in the burr area.

[0052] Specifically, the embodiment of the present application can determine the preset angle of each rotation of the burr cylinder sleeve to be detected, preferably, the preset angle is 0.5°, until one rotation, each rotation angle corresponds to a preset number of points, preferably, the preset number is 1000. For example, the embodiment of the present application can control the burr cylinder sleeve to rotate 0.5° each time, and the position of the laser rangefinder always remains perpendicular to the highest point of the burr surface of the burr cylinder sleeve. After the base device drives the burr cylinder sleeve to rotate 0.5°, the laser rangefinder moves at a uniform speed in the horizontal direction and measures the point height regularly. For every 0.5° rotation of the burr cylinder sleeve, the laser rangefinder measures 1000 points, and the data collection of the entire burr cylinder sleeve is completed after rotating 360 degrees.

[0053] In step S102, based on each rotation angle, the cylinder liner to be detected for burrs is controlled to rotate, and the height values ​​of multiple target points corresponding to each rotation angle are measured.

[0054] Specifically, the embodiment of the present application controls the burr cylinder sleeve to rotate, and measures the height values ​​of all target points at each rotation angle, until the height values ​​of all target points at all rotation angles are obtained. For example, at 0.5°, 1000 points corresponding to 0.5° are measured, and at 1°, 1000 points corresponding to 1° are measured, until the points corresponding to all angles at 360° are obtained.

[0055] In step S103, a target matrix is ​​generated based on the height values ​​of multiple target points corresponding to each rotation angle, and the height evaluation ratio, average gradient value and average variance value of the cylinder liner with burrs to be detected are obtained according to the target matrix, and the evaluation result of the cylinder liner with burrs to be detected is obtained according to the height evaluation ratio, average gradient value and average variance value.

[0056] Specifically, the height values ​​of multiple target points corresponding to each rotation angle are used to generate a target matrix. For example, a group of height values ​​is measured every 0.5° until 360° is measured, and then 720 rows and 1000 columns of height value data form a target matrix, thereby obtaining a target matrix formed by the height values ​​of all points of the burred cylinder liner measured, and the height evaluation ratio, average gradient value and average variance value of the burred cylinder liner to be detected are obtained according to the target matrix, so as to obtain the evaluation result of the burred cylinder liner to be detected according to the height evaluation ratio, average gradient value and average variance value.

[0057] Optionally, in some embodiments, a height evaluation ratio, an average gradient value and an average variance value of the burred cylinder liner to be detected are obtained according to the target matrix, including: counting the number of all elements in the target matrix that are greater than a preset height value; calculating the ratio of the number of elements to the total number of elements of all elements in the target matrix to obtain a height evaluation ratio.

[0058] The preset height value may be pre-set by a user, obtained through a limited number of experiments, or obtained through a limited number of computer simulations, and is not specifically limited here.

[0059] During the actual execution process, the embodiment of the present application allows the user to input a preset height value A, count the number of elements M of points in the target matrix that are greater than A, and the total number of elements of all elements in the target matrix is ​​N. The height evaluation ratio of M / N is used to evaluate the quality of the burr height.

[0060] Optionally, in some embodiments, obtaining the height evaluation ratio, average gradient value and average variance value of the burred cylinder liner to be detected according to the target matrix also includes: calculating the gradient value of each element in the target matrix; and obtaining the average gradient value according to the gradient value of each element.

[0061] Specifically, in the target matrix, the gradient value B of each element of the target matrix is ​​calculated, and the average gradient value B is calculated according to the gradient value B of each element, and the shape consistency of the burr is evaluated according to the average gradient value B.

[0062] Optionally, in some embodiments, the height evaluation ratio, average gradient value and average variance value of the burr cylinder liner to be detected are obtained according to the target matrix, and it also includes: calculating the variance value of each row of the target matrix and the variance value of each column of the target matrix; calculating the average variance value according to the variance value of each row of the target matrix and the variance value of each column of the target matrix.

[0063] Specifically, the variance C is calculated in each row and each column of the matrix, and the average variance value C is calculated, and the uniformity of the burrs is evaluated according to the average variance value C.

[0064] Optionally, in some embodiments, an evaluation result of the burred cylinder liner to be detected is obtained based on the height evaluation ratio, the average gradient value and the average variance value, including: judging whether the height evaluation ratio is lower than a first preset threshold, whether the average gradient value is lower than a second preset threshold, and whether the average variance value is lower than a third preset threshold; if the height evaluation ratio is lower than the first preset threshold, and the average gradient value is lower than the second preset threshold, and the average variance value is lower than the third preset threshold, then the evaluation result is qualified.

[0065] Among them, the first preset threshold, the second preset threshold and the third preset threshold may be preset by a user, may be obtained through a limited number of experiments, or may be obtained through a limited number of computer simulations, and are not specifically limited here.

[0066] Specifically, the embodiment of the present application can set a first preset threshold, a second preset threshold and a third preset threshold to evaluate the quality of the burr height, the consistency of the burr shape and the uniformity of the burr, and when the height evaluation ratio is lower than the first preset threshold, and the average gradient value is lower than the second preset threshold, and the average variance value is lower than the third preset threshold, it is determined that the quality of the burr height, the consistency of the burr shape and the uniformity of the burr meet the engineering requirements.

[0067] In the actual execution process, the embodiment of the present application can write the evaluation algorithm into the controller and the memory. The controller receives the numerical matrix measured by the laser rangefinder and obtains M / N through the evaluation algorithm, and outputs the result to the display. The controller also writes the data into the memory. The overall workflow is: the user places the burr cylinder sleeve on the base device, adjusts the distance between the laser rangefinder and the axis of the burr cylinder sleeve, enters the target height value A, and then starts running the measurement program. After the program is completed, the display shows the measurement result.

[0068] According to the evaluation method of burred cylinder liner proposed in the embodiment of the present application, by determining multiple rotation angles of the burred cylinder liner to be detected and multiple target points corresponding to each rotation angle, and based on each rotation angle, controlling the rotation of the burred cylinder liner to be detected, and measuring the height values ​​of the multiple target points corresponding to each rotation angle, and based on the height values ​​of the multiple target points corresponding to each rotation angle, generating a target matrix, and obtaining the height evaluation ratio, average gradient value and average variance value of the burred cylinder liner to be detected according to the target matrix, and obtaining the evaluation result of the burred cylinder liner to be detected according to the height evaluation ratio, average gradient value and average variance value. Thus, the problem that the related technology cannot comprehensively and accurately evaluate the burr quality of the burred cylinder liner is solved, and whether the burr quality of the burred cylinder liner meets the engineering requirements can be comprehensively detected, thereby reducing the cracking of the cylinder liner.

[0069] Next, a device for evaluating a burred cylinder liner according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0070] Figure 2 It is a block diagram of a device for evaluating a burred cylinder liner according to an embodiment of the present application.

[0071] like Figure 2 As shown, the burr cylinder liner evaluation device 10 includes: a determination module 100 , a measurement module 200 and an evaluation module 300 .

[0072] The determination module 100 is used to determine a plurality of rotation angles of the cylinder liner to be detected for burrs and a plurality of target points corresponding to each rotation angle.

[0073] The measuring module 200 is used to control the rotation of the cylinder liner to be detected for burrs based on each rotation angle, and to measure the height values ​​of multiple target points corresponding to each rotation angle.

[0074] The evaluation module 300 is used to generate a target matrix based on the height values ​​of multiple target points corresponding to each rotation angle, and obtain the height evaluation ratio, average gradient value and average variance value of the cylinder liner with burrs to be detected according to the target matrix, and obtain the evaluation result of the cylinder liner with burrs to be detected according to the height evaluation ratio, average gradient value and average variance value.

[0075] Optionally, in some embodiments, the evaluation module 300 includes: a statistical unit and a first calculation unit.

[0076] The statistical unit is used to count the number of all elements in the target matrix that are greater than a preset height value.

[0077] The first calculation unit is used to calculate the ratio of the number of elements to the total number of elements of all elements in the target matrix to obtain a highly evaluated ratio.

[0078] Optionally, in some embodiments, the evaluation module 300 further includes: a second calculation unit and a generation unit.

[0079] The second calculation unit is used to calculate the gradient value of each element in the target matrix.

[0080] A generation unit is used to obtain the average gradient value based on the gradient value of each element.

[0081] Optionally, in some embodiments, the evaluation module 300 further includes: a third calculation unit and a fourth calculation unit.

[0082] The third calculation unit is used to calculate the variance value of each row of the target matrix and the variance value of each column of the target matrix.

[0083] The fourth calculation unit is used to calculate the average variance value according to the variance value of each row of the target matrix and the variance value of each column of the target matrix.

[0084] Optionally, in some embodiments, the evaluation module 300 includes: a judgment unit and an evaluation unit.

[0085] The judging unit is used to judge whether the high evaluation ratio is lower than a first preset threshold, whether the average gradient value is lower than a second preset threshold, and whether the average variance value is lower than a third preset threshold;

[0086] The evaluation unit is used to evaluate that if the height evaluation ratio is lower than a first preset threshold, the average gradient value is lower than a second preset threshold, and the average variance value is lower than a third preset threshold, the evaluation result is qualified.

[0087] It should be noted that the above explanation of the embodiment of the evaluation method for burred cylinder liners is also applicable to the evaluation device for burred cylinder liners of this embodiment, and will not be repeated here.

[0088] According to the evaluation device for burred cylinder liners proposed in the embodiment of the present application, by determining multiple rotation angles of the burred cylinder liners to be detected and multiple target points corresponding to each rotation angle, and based on each rotation angle, controlling the rotation of the burred cylinder liners to be detected, and measuring the height values ​​of the multiple target points corresponding to each rotation angle, and based on the height values ​​of the multiple target points corresponding to each rotation angle, generating a target matrix, and obtaining the height evaluation ratio, average gradient value and average variance value of the burred cylinder liners to be detected according to the target matrix, and obtaining the evaluation result of the burred cylinder liners to be detected according to the height evaluation ratio, average gradient value and average variance value. Thus, the problem that the related technology cannot comprehensively and accurately evaluate the burr quality of the burred cylinder liners is solved, and whether the burr quality of the burred cylinder liners meets the engineering requirements can be comprehensively detected, thereby reducing the cracking of the cylinder liners.

[0089] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include:

[0090] A memory 301 , a processor 302 , and a computer program stored in the memory 301 and executable on the processor 302 .

[0091] When the processor 302 executes the program, the evaluation method of the burred cylinder liner provided in the above embodiment is implemented.

[0092] Furthermore, the electronic device further comprises:

[0093] The communication interface 303 is used for communication between the memory 301 and the processor 302 .

[0094] The memory 301 is used to store computer programs that can be run on the processor 302 .

[0095] The memory 301 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0096] If the memory 301, the processor 302 and the communication interface 303 are implemented independently, the communication interface 303, the memory 301 and the processor 302 can be connected to each other through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0097] Optionally, in a specific implementation, if the memory 301, the processor 302 and the communication interface 303 are integrated on a chip, the memory 301, the processor 302 and the communication interface 303 can communicate with each other through an internal interface.

[0098] The processor 302 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0099] The embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned method for evaluating a burred cylinder liner.

[0100] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0101] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0102] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0103] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.

[0104] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0105] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for evaluating burr cylinder liners, characterized in that: The following steps are involved: Determine multiple rotation angles of the cylinder liner to be detected for burrs and multiple target points corresponding to each rotation angle; Based on each rotation angle, the cylinder sleeve to be detected for burrs is controlled to rotate, and the height values ​​of multiple target points corresponding to each rotation angle are measured; Based on the height values ​​of multiple target points corresponding to each rotation angle, a target matrix is ​​generated, and the height evaluation ratio, average gradient value and average variance value of the cylinder liner with burrs to be detected are obtained according to the target matrix, and the evaluation result of the cylinder liner with burrs to be detected is obtained according to the height evaluation ratio, the average gradient value and the average variance value.

2. The method according to claim 1, characterized in that The method of obtaining the height evaluation ratio, average gradient value and average variance value of the burr cylinder liner to be detected according to the target matrix includes: Counting the number of all elements in the target matrix that are greater than a preset height value; The highly evaluated ratio is obtained by calculating the ratio of the number of elements to the total number of elements of all elements in the target matrix.

3. The method according to claim 1, characterized in that The step of obtaining the height evaluation ratio, average gradient value and average variance value of the burr cylinder liner to be detected according to the target matrix also includes: Calculate the gradient value of each element in the target matrix; The average gradient value is obtained according to the gradient value of each element.

4. The method according to claim 1, characterized in that The step of obtaining the height evaluation ratio, average gradient value and average variance value of the burr cylinder liner to be detected according to the target matrix also includes: Calculate the variance value of each row of the target matrix and the variance value of each column of the target matrix; The average variance value is calculated according to the variance value of each row of the target matrix and the variance value of each column of the target matrix.

5. The method according to claim 4, characterized in that The evaluation result of the burr cylinder liner to be detected is obtained according to the height evaluation ratio, the average gradient value and the average variance value, including: Determine whether the high evaluation ratio is lower than a first preset threshold, whether the average gradient value is lower than a second preset threshold, and whether the average variance value is lower than a third preset threshold; If the height evaluation ratio is lower than the first preset threshold, the average gradient value is lower than the second preset threshold, and the average variance value is lower than the third preset threshold, the evaluation result is qualified.

6. A burr cylinder liner evaluation device, characterized in that: include: A determination module, used to determine a plurality of rotation angles of the cylinder liner to be detected for burrs and a plurality of target points corresponding to each rotation angle; A measuring module, for controlling the cylinder sleeve to be detected for burrs to rotate based on each rotation angle, and measuring the height values ​​of multiple target points corresponding to each rotation angle; An evaluation module is used to generate a target matrix based on the height values ​​of multiple target points corresponding to each rotation angle, and obtain the height evaluation ratio, average gradient value and average variance value of the cylinder liner with burrs to be detected according to the target matrix, and obtain the evaluation result of the cylinder liner with burrs to be detected according to the height evaluation ratio, the average gradient value and the average variance value.

7. The device according to claim 6, characterized in that The evaluation module comprises: A counting unit, used for counting the number of all elements in the target matrix that are greater than a preset height value; The first calculation unit is used to calculate the ratio of the number of elements to the total number of elements of all elements in the target matrix to obtain the highly evaluated ratio.

8. The device according to claim 6, characterized in that The evaluation module further includes: A second calculation unit, used to calculate the gradient value of each element in the target matrix; A generating unit is used to obtain the average gradient value according to the gradient value of each element.

9. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for evaluating a burred cylinder liner according to any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the method for evaluating a burred cylinder liner as described in any one of claims 1 to 5.

Images