A method of measuring a sealed compression amount, a storage medium, and an apparatus

Abstract

A sealed compression measurement method, a storage medium and an equipment relate to the technical field of automation detection, and solve the problems of low efficiency and poor measurement accuracy of the existing manual measurement method. The method comprises the following steps: S1, fitting models of a measured sealing element and a measurement reference element in a free state according to actual assembly positions of the measured sealing element and the measurement reference element, and cutting two-dimensional sections of the measured sealing element and the measurement reference element; S2, marking the measured sealing element and the measurement reference element; S3, capturing an intersection of the measured sealing element and the measurement reference element; S4, establishing a measurement reference surface of the measurement reference element; S5, capturing a farthest point i of the measured sealing element on a side compressed to the reference surface; and S6, measuring a minimum distance of the point i to the measurement reference surface, that is, a compression amount.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automatic detection technology, in particular to a sealing compression measurement method, a storage medium and equipment. BACKGROUND

[0002] Mechanical seals belong to one of the precise and complex mechanical basic elements. Sealing rings, sealing strips and other sealing elements are mainly used to realize the isolation of media to ensure that components and the like will not fail or be damaged due to media leakage or inflow. Sealing rings can be divided into different categories according to their functions or shapes. O-shaped sealing rings are a common type of sealing ring. O-shaped sealing rings are generally installed in rectangular grooves on the outer circle or inner circle and are mainly used to achieve static sealing.

[0003] Sealing elements are widely used in the development and manufacturing process of whole vehicles. The influence of sealing compression on sealing performance and service life cannot be ignored. However, the existing solutions are limited to manual measurement of the compression of sealing elements of the whole vehicle, which is a repetitive operation with low efficiency and poor measurement accuracy, and cannot effectively support project development. SUMMARY

[0004] In order to solve the problem of low efficiency and poor measurement accuracy of the existing manual measurement method, the present application proposes a sealing compression measurement method, a storage medium and equipment.

[0005] The technical solution of the present application is as follows:

[0006] A sealing compression measurement method, the method comprising the following steps:

[0007] S1. Fitting a model of the free state of the measured sealing element and the measurement reference element according to the actual assembly position of the measured sealing element and the measurement reference element, and cutting a two-dimensional section of the measured sealing element and the measurement reference element;

[0008] S2. Marking the measured sealing element and the measurement reference element;

[0009] S3. Capturing the intersection of the measured sealing element and the measurement reference element;

[0010] S4. Establishing a measurement reference surface of the measurement reference element;

[0011] S5. Capturing the farthest point i of the measured sealing element on the compressed side from the reference surface;

[0012] S6. Measuring the minimum distance from the point i to the measurement reference surface, i.e. the compression.

[0013] Preferably, the measurement reference surface is a plane in which the line segment between the two farthest intersection points of the measured sealing element and the measurement reference element is located.

[0014] Preferably, the cutting method of the two-dimensional section in step S1 comprises:

[0015] Step 1, the three-dimensional data of the part is opened by using a three-dimensional data calling method;

[0016] Step 2, the three-dimensional data of the part is intercepted to obtain a two-dimensional drawing;

[0017] The method for intercepting the three-dimensional data of the part to obtain the two-dimensional drawing comprises an overall intercepting method, a selected intercepting method and a reference part intercepting method;

[0018] The overall intercepting method specifically comprises:

[0019] The positioning module gives two extreme points of the three-dimensional data of the part;

[0020] The direction module determines the intercepting direction of the two-dimensional drawing of the three-dimensional data of the part;

[0021] The quantification module determines the intercepting deflection angle of the two-dimensional drawing of the three-dimensional data of the part;

[0022] According to the number of the three-dimensional data of the part to be intercepted, the quantification module divides the three-dimensional data of the part into two-dimensional sections evenly;

[0023] After the range module selects the intercepting range of the two-dimensional drawing of the three-dimensional data of the part, the two-dimensional drawing of the three-dimensional data of the part is intercepted.

[0024] A sealed compression amount measurement system is used to realize the sealed compression amount measurement method.

[0025] A computer readable storage medium is used to store a computer program, and the computer program executes the sealed compression amount measurement method.

[0026] An electronic device comprises a processor and a memory, wherein the processor and the memory complete mutual communication through a communication bus; the memory is used to store a computer program; and the processor is used to execute the computer program stored on the memory to realize the sealed compression amount measurement method.

[0027] Compared with the prior art, the application solves the problems of low efficiency and poor measurement accuracy of the manual measurement method, and has the following specific beneficial effects:

[0028] The application establishes an automobile DPA automatic inspection system by compiling a secondary development program, uses computer measurement instead of manual measurement, realizes automation, greatly improves the three-dimensional data compression amount measurement efficiency and measurement accuracy of the whole vehicle, and effectively supports project development. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a two-dimensional section view of the measured seal and the measurement reference part;

[0030] Figure 2 A diagram for automatically marking the measured seal and the measurement reference;

[0031] Figure 3 A diagram for the intersection of the measured seal and the measurement reference;

[0032] Figure 4 A diagram for the position of the measurement reference surface;

[0033] Figure 5 A diagram for the automatically captured i point;

[0034] Figure 6 A diagram for the result of the automatically measured compression amount;

[0035] Figure 7 A diagram for the result of the manually measured compression amount. DETAILED DESCRIPTION

[0036] In order to make the technical solutions of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the specification of the present application. It should be noted that the following embodiments are only used to better understand the technical solutions of the present application, and should not be understood as a limitation of the present application.

[0037] Embodiment 1.

[0038] The present embodiment provides a seal compression amount measurement method, which comprises the following steps:

[0039] S1. Fitting a model of the measured seal and the measurement reference in a free state according to the actual assembly position of the measured seal and the measurement reference, and cutting a two-dimensional section of the measured seal and the measurement reference, as shown in Figure 1 ;

[0040] S2. Marking the measured seal and the measurement reference, as shown in Figure 2 , wherein the B part is the measurement reference, indicated by the symbol +, and the A part is the measured part;

[0041] S3. Capturing the intersection points a, b, c, d, e, f, g and h of the measured seal and the measurement reference, as shown in Figure 3 ;

[0042] S4. Establishing a measurement reference surface of the measurement reference, as shown in Figure 4 ;

[0043] S5. Capturing the farthest point i of the measured seal from the reference surface on the compressed side, as shown in Figure 5 ;

[0044] S6. Measuring the minimum distance of the i point to the measurement reference surface, that is, the compression amount.

[0045] Embodiment 2.

[0046] This embodiment is a further illustration of embodiment 1, wherein the measurement reference plane is the plane in which the line segment between the two farthest intersection points of the measured seal and the measurement reference element is located.

[0047] As shown in Figure 4 , the measurement reference plane is the plane of the vertical screen in which the line segment between the farthest intersection points e and h of the A component and the B component is located.

[0048] Taking the measurement of the compression amount of the cabin seal strip of a certain vehicle model as an example, the precision and efficiency of the compression measurement of the DPA automatic inspection system-compression inspection module are compared with manual measurement. According to the above method, the compression amount is measured automatically, which takes 30 seconds and the result is 4.0 mm, as shown in Figure 6 ; the manual measurement method and result are shown in Figure 7 , the two-dimensional section is manually cut, a new measurement line and the farthest point are established on the straight line segment of the adjacent component, the distance from the measurement point to the straight line is measured, and the measurement result is 3.95 mm, which takes 3 minutes and the measurement reference component cannot be marked; it can be proved that the measurement efficiency of the method described in this embodiment is greatly improved, which is increased by 83.3%, and the measurement precision is also improved compared with manual measurement.

[0049] Embodiment 3.

[0050] This embodiment is a further illustration of embodiment 1, wherein the cutting method of the two-dimensional section in step S1 comprises:

[0051] Step 1: opening the part three-dimensional data by using a three-dimensional data calling method;

[0052] Step 2: taking a two-dimensional drawing of the part three-dimensional data;

[0053] The method for taking a two-dimensional drawing of the part three-dimensional data comprises an overall screenshot method, a selected screenshot method and a reference element screenshot method;

[0054] The overall screenshot method specifically comprises:

[0055] The positioning module gives two extreme points of the part three-dimensional data respectively;

[0056] The direction module determines the screenshot direction of the two-dimensional drawing of the part three-dimensional data;

[0057] The quantification module determines the screenshot deflection angle of the two-dimensional drawing of the part three-dimensional data;

[0058] According to the number of part three-dimensional data to be cut, the quantification module evenly divides the part three-dimensional data into two-dimensional sections;

[0059] The range module selects the cutting range of the two-dimensional drawing of the three-dimensional data of the part, and cuts the two-dimensional drawing of the three-dimensional data of the part.

[0060] Embodiment 4.

[0061] The embodiment provides a sealed compression measurement system, which is used to realize the optical transceiver beacon light spot center positioning method as any one of the embodiments 1-3.

[0062] Embodiment 5.

[0063] The embodiment provides a computer readable storage medium, which is used to store a computer program, and the computer program executes the optical transceiver beacon light spot center positioning method as any one of the embodiments 1-3.

[0064] Embodiment 6.

[0065] The embodiment provides an electronic device, which comprises a processor and a memory, wherein the processor and the memory complete mutual communication through a communication bus; the memory is used to store a computer program; and the processor is used to execute the computer program stored on the memory, so that the optical transceiver beacon light spot center positioning method as any one of the embodiments 1-3 is realized.

[0066] The memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM can be used, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It is to be noted that the memory described with the methods of the present application is intended to include, but not be limited to, these and any other suitable types of memory.

[0067] In the embodiments described above, all or some of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or some of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed by a computer, all or some of the processes or functions described in the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as high-density digital video disc (digital video disc, DVD)), or semiconductor media (such as solid state disc (solid state disc, SSD)), etc. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware in the processor or the instruction in the form of software. The steps of the method disclosed in the embodiments of the present application can be directly embodied as hardware processor execution, or executed by hardware and software module combination in the processor. The software module can be located in random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, register, etc. mature storage medium in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0068] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with a signal processing capability. In the implementation process, the steps of the above method embodiments can be completed by an integrated logic circuit or an instruction in the form of software in the processor. The processor mentioned above can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method.

Claims

1. A method of measuring a sealing compression amount, characterized by, The method comprises the following steps: S1, fitting the models of the measured seal and the measurement reference in free state according to the actual assembly position of the measured seal and the measurement reference, and cutting the two-dimensional sections of the measured seal and the measurement reference; S2, marking the measured seal and the measurement reference; S3, capturing the intersection of the measured seal and the measurement reference; S4, establishing the measurement reference surface of the measurement reference; S5, capturing the farthest point i of the measured seal from the reference surface on the compressed side; S6, measuring the minimum distance of the point i from the measurement reference surface, i.e. the compression amount; The cutting method of the two-dimensional section in step S1 comprises: Step 1, opening the three-dimensional data of the part by using a three-dimensional data calling method; Step 2, cutting the two-dimensional graph of the three-dimensional data of the part; The method for cutting the two-dimensional graph of the three-dimensional data of the part comprises an overall cutting method, a selected cutting method and a reference cutting method; The overall cutting method specifically comprises: The positioning module gives the extreme points of the two ends of the three-dimensional data of the part respectively; The direction module determines the cutting direction of the two-dimensional graph of the three-dimensional data of the part; The quantification module determines the deflection angle of the cutting of the two-dimensional graph of the three-dimensional data of the part; According to the number of the three-dimensional data of the part to be cut, the quantification module evenly divides the three-dimensional data of the part into two-dimensional sections; After the range module selects the cutting range of the two-dimensional graph of the three-dimensional data of the part, the two-dimensional graph of the three-dimensional data of the part is cut.

2. The sealed compression metrology method of claim 1, wherein, The measurement reference surface is the plane in which the line segment between the two farthest intersection points of the measured seal and the measurement reference is located.

3. A sealed compression metrology system characterized by, The method is used for realizing the seal compression amount measurement method as claimed in claim 1 or 2.

4. A computer-readable storage medium, characterized in that, The computer readable storage medium is used for storing the computer program, and the computer program executes the seal compression amount measurement method as claimed in claim 1 or 2.

5. An electronic device, comprising: The computer readable storage medium is used for storing the computer program, and the computer program executes the seal compression amount measurement method as claimed in claim 1 or 2. The computer readable storage medium is used for storing the computer program, and the computer program executes the seal compression amount measurement method as claimed in claim 1 or 2.

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