A standard sample size measurement method, system and application

Abstract

In order to solve the problem that the existing method for measuring samples cannot classify samples, the present invention provides a standard sample size measurement method, system and application, including the following steps: S1. Determine the sample incoming information through a code scanning component, and send the information to the control end, which forms a QR code corresponding to the sample; S2. Position the sample scanned in step S1; S3. Spray a QR code on the sample positioned in step S2; S4. Measure the size of the sample sprayed with the QR code; S5. Classify the above samples by type using the size data obtained in step S4. The system described in the present invention pre-sets a sample type database through a visual device or workstation, and solves the problems of sample type identification, classification, and coding when different types of samples are measured at the same time by comparing the measurement results with the database, thereby reducing the time and errors of manual identification.

Description

Technical Field

[0001] The present invention relates to the field of material performance testing, and in particular to a standard sample size measurement method, system and application. Background Art

[0002] A standard sample actually provides one or more quantitative values ​​for a substance as a "reference value" for the accuracy of other measurements. Therefore, the measurement requirements for the sample are relatively high.

[0003] Existing methods for measuring the dimensions of inspection specimens use micrometers and vernier calipers, while automated measurement devices integrate grating scales and micrometers into automated control mechanisms, achieving high-precision, automated measurement. However, existing measurement methods and devices are unable to classify specimens, requiring manual classification, resulting in disorganized data and confusing subsequent management.

[0004] In short, the existing measurement method for samples has the problem of being unable to classify the samples, resulting in data confusion and inconvenience in query and management. Summary of the Invention

[0005] In order to solve the problem in the prior art that the sample measurement method cannot classify the samples, the present invention provides a standard sample size measurement method, system and application, which can effectively solve the above problem.

[0006] In order to achieve the above object, the specific solution adopted by the present invention is: a method for measuring the size of a standard sample, comprising the following steps:

[0007] S1. Determine the incoming sample information through the code scanning component and send the information to the control terminal, which generates a QR code corresponding to the sample;

[0008] S2. Position the sample scanned in step S1;

[0009] S3. Spray the QR code on the sample located in step S2;

[0010] S4. Measure the size of the sample sprayed with the QR code;

[0011] S5. Classify the above samples by type based on the size data obtained in step S4.

[0012] The specific process of the S5 step is:

[0013] The size data obtained in step S4 is uploaded to the control terminal, and the type of the sample is obtained by comparing with the database in the control terminal; at the same time, the type information of the sample is associated with the QR code information sprayed in step S3.

[0014] In a specific embodiment, the specific process of step S5 is as follows:

[0015] The size data obtained in step S4 is uploaded to the control terminal, and the type of the sample is obtained by comparing with the database in the control terminal; at the same time, the type information of the sample is associated with the QR code information sprayed in step S3.

[0016] An application of the aforementioned standard sample size measurement method in measuring the size of mechanical property splines.

[0017] A standard sample size measurement system comprises a frame, a conveying robot, a host computer, and a code scanning component, a fixing component, a coding component, and a measuring component arranged on the frame; wherein the host computer is electrically connected to the code scanning component for collecting incoming material information of the sample; wherein the host computer is electrically connected to the fixing component for detecting whether the sample is in place and controlling the fixing component to fix the sample; wherein the host computer is connected to the coding component for controlling the coding component to spray a unique QR code onto the sample; wherein the host computer is electrically connected to the measuring component for collecting the size data of the sample and judging the type of the sample based on the size information; wherein the host computer is electrically connected to the conveying robot for conveying the sample to the next workstation after the sample is placed on the fixing component and the positioning is completed and the type of the sample is judged.

[0018] In a specific embodiment, the code scanning component includes a code scanning gun electrically connected to the host computer, or includes a code scanning unit electrically connected to the host computer and a door-shaped code scanning bracket arranged on the frame; wherein, the code scanning unit is arranged on the crossbeam of the code scanning bracket and the detection end is arranged downward.

[0019] In a specific embodiment, the fixing assembly includes a bottom plate, a negative pressure unit, and a positioning unit disposed on a frame; wherein a row of at least two positioning units is disposed on an edge of the bottom plate, and a ventilation hole for adsorbing the sample is disposed in the middle of the bottom plate; the ventilation hole is connected to an output end of the negative pressure unit;

[0020] Among them, the positioning unit cooperates with the positioning device on the conveying robot to place the sample at the required position; wherein, the negative pressure unit is electrically connected to the host computer to control the operation of the negative pressure unit after the conveying robot places the sample at the specified position.

[0021] In a specific embodiment, the measuring component includes a first slide rail mechanism for measuring the thickness of the sample, a second slide rail mechanism for measuring the length and width of the sample, and a fixed frame for setting the first slide rail mechanism and the second slide rail mechanism; wherein, the fixed frame is set on the frame and can move linearly along the frame; the first slide rail mechanism is set on the side of the fixed frame perpendicular to the ground; the second slide rail mechanism is set on the side of the fixed frame away from the fixed component, and the second slide rail mechanism can move linearly along the fixed frame, and the movement direction of the second slide rail mechanism is perpendicular to the movement direction of the fixed frame.

[0022] In a specific embodiment, the first slide rail mechanism and the second slide rail mechanism each include a drive motor, a first guide rail, a second guide rail, a slider, a screw and a measuring element; wherein, the first guide rail and the second guide rail are detachably arranged on a fixed frame; a slider is arranged in the gap between the first guide rail and the second guide rail; a measuring element is arranged at one end of the slider facing the sample and a threaded hole is arranged at the end away from the sample; the threaded hole on the slider is arranged corresponding to the screw; one end of the screw is connected to the output end of the drive motor, and the other end is arranged on the fixed frame through a fixing seat.

[0023] In a specific embodiment, the fixing assembly includes a transparent bottom plate, a positioning unit, and a lighting unit arranged on the frame;

[0024] The measuring component includes a CCD linear array;

[0025] Wherein, the edge of the bottom plate is provided with a row of at least two positioning units;

[0026] Among them, the positioning unit cooperates with the positioning device on the conveying robot to place the sample in the object field of view of the imaging objective lens and set the CCD linear array image sensitive surface at the optimal image plane position of the imaging objective lens; wherein, the CCD linear array is electrically connected to the host computer to upload the measurement results to the host computer.

[0027] In a specific embodiment, the fixing assembly includes a transparent bottom plate, a positioning unit, and a lighting unit arranged on the frame;

[0028] The measuring component includes a CCD linear array for measuring the length and width of the sample and a screw drive mechanism for measuring the thickness of the sample; wherein, a row of at least two positioning units is provided on the edge of the base plate and cooperates with the positioning device on the conveying robot to place the sample in the object field of view of the imaging objective lens and set the CCD linear array image sensitive surface at the optimal image plane position of the imaging objective lens; wherein, the CCD linear array is electrically connected to the host computer and is used to upload the measurement results to the host computer; the screw drive mechanism drives the screw to cooperate with the slider through a stepping motor, so that the slider moves on the corresponding guide rail, thereby completing the thickness measurement of the sample.

[0029] Beneficial effect: The method of the present invention sets up a spraying device to communicate with the component for measuring the sample, sprays a code on the surface of the sample, and stores the size data of the sample obtained by the measuring component, and then compares it with the standard data in the database to obtain the type of sample and complete the classification of the sample.

[0030] The system of the present invention pre-sets a sample type database through a visual device or workstation, and solves the problems of sample type identification, classification, and coding when different types of samples are measured simultaneously by comparing the measurement results with the database, thereby reducing the time and errors of manual identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The present invention is a flowchart of the method.

[0032] Figure 2 This is a structural block diagram of the system of the present invention.

[0033] Figure 3 Schematic diagram of the structure of the system of the present invention.

[0034] Figure 4 for Figure 3 Schematic diagram of the structure of the code scanning component.

[0035] Figure 5 for Figure 3 An embodiment of a fixing component and a measuring component.

[0036] Figure 6 for Figure 5 Left view of .

[0037] Figure 7 for Figure 6 AA screenshot in.

[0038] Figure 8 for Figure 3 The main view of the fixed component.

[0039] Figure 9 for Figure 8Top view of .

[0040] Figure 10 for Figure 3 Another embodiment of the fixing component and the measuring component.

[0041] Figure 11 for Figure 10 Partial view from top view.

[0042] Among them, it is necessary to clarify that: Figure 5 The direction of the arrow is the direction of airflow, which means negative pressure is generated.

[0043] Explanation of the accompanying symbols: 1-frame; 2-transfer robot; 3-host computer; 4-code scanning component; 5-fixing component; 6-inkjet coding component; 7-measuring component; 401-code scanning gun; 402-code scanning unit; 402-code scanning bracket; 501-base plate; 502-negative pressure unit; 503-positioning unit; 502A-long hole; 701-first slide rail mechanism; 702-second slide rail mechanism; 703-fixed frame; 704-CCD linear array; 1A-crossbeam; 8-sample; a-drive motor, b-first guide rail, c-second guide rail, d-slider, e-screw, g-measuring element. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0045] In order to solve the problem in the prior art that the sample measurement method cannot classify the samples, the present invention provides the following standard sample size measurement method.

[0046] like Figure 1 The method for measuring the size of a standard sample comprises the following steps:

[0047] S1. Determine the incoming sample information through the code scanning component and send the information to the control terminal, which generates a QR code corresponding to the sample;

[0048] S2. Position the sample scanned in step S1;

[0049] S3. Spray the QR code on the sample located in step S2;

[0050] S4. Measure the size of the sample sprayed with the QR code;

[0051] S5. Upload the size data obtained in step S4 to the control terminal, and obtain the type of the sample by comparing with the database in the control terminal; at the same time, associate the type information of the sample with the QR code information sprayed in step S3.

[0052] The control end described in step S5 stores a database constructed with sample standard data; after receiving the length, width and thickness data of the sample to be tested, it compares them with the data in the above database to find the corresponding sample type and complete the sample classification process.

[0053] Mechanical properties splines are a commonly used strip sample. Traditionally, manual sorting is used, which is slow and prone to errors. Furthermore, since the samples are not coded after sorting, it's impossible to determine if their dimensions are acceptable. Manual recording is often time-consuming and labor-intensive, with a high error rate and difficulty in subsequent statistical analysis.

[0054] In order to solve the above problems, the method described in the present invention is used in the classification and measurement process of mechanical property splines, which can effectively improve efficiency, control error rate, and facilitate subsequent data statistics, thereby greatly improving production efficiency.

[0055] This embodiment also provides an application of the aforementioned standard sample size measurement method in measuring the size of mechanical property splines.

[0056] In order to meet the application of the above-mentioned measurement method in actual production, the present invention provides a standard sample size measurement system.

[0057] like Figures 2-3 The standard sample size measurement system includes a frame 1, a conveying robot 2, a host computer 3, and a code scanning component 4 arranged on the frame 1 for collecting incoming material information of the sample 8, a fixing component 5 for fixing the sample, a coding component 6 for spraying a unique QR code on the sample 8, and a measuring component 7 for collecting the size data of the sample 8; wherein the host computer 3 is electrically connected to the code scanning component 4, the fixing component 5, the coding component 6 and the measuring component 7, and after receiving the signal of completion of the code scanning component 4, the conveying robot 2 controls the conveying robot 2 to place the sample 8 on the fixing component 5 for positioning, and then measures the size of the sample 8 through the measuring component 7, determines the type of the sample 8 in the host computer 3, and then transports the sample 8 to the next workstation, such as a classification storage box, through the conveying robot 2.

[0058] According to actual production needs, the code scanning component 4 can be a code scanning gun 401; the code scanning gun 401 is held in the hand of the staff to scan the sample 8, obtain the factory information of the sample 8, and store the information in the host computer 3.

[0059] Or, as Figure 4The code scanning assembly 4 may include a code scanning unit 402 and a door-shaped code scanning bracket 403 mounted on the frame 1. The code scanning unit 402 is mounted on a crossbeam of the code scanning bracket 403. When a sample 8 passes under the code scanning bracket 403, the code scanning unit 402 acquires the coded information on the sample 8 and transmits it to the host computer 3. The sample 8 may be transported through the code scanning unit 402 via a conveyor belt, or the sample 8 may be manually placed under the code scanning unit 402.

[0060] It should be made clear that after the staff completes the code scanning process, the sample 8 is transferred to the fixed component 5 by the transfer robot 2. During this process, the transfer robot 2 uses the pixel points through the CCD to locate and cooperate with the transfer robot 2 to grasp.

[0061] Example I: Since the sample 8 needs to be measured after the fixing component 5 is fixed, if a laser head is used for linear scanning measurement, the sample 8 needs to be fixed to prevent the sample 8 from moving and affecting the measurement result.

[0062] In actual work, Figures 5-6 The measuring component 7 can measure the length, width and thickness of the sample 8 through the laser ranging unit; at the same time, in the process of using the laser ranging, in order to ensure the accuracy of the measurement results, the sample 8 is kept in a stationary state by the fixing component 5, and the laser ranging unit on the measuring component 7 can move linearly to measure the size data of the sample 8 by scanning.

[0063] Specifically, the fixing assembly 5 includes a base plate 501, a negative pressure unit 502, and a positioning unit 503, which are arranged on the frame 1 by bolts; wherein, a row of at least two positioning units 503 are arranged on the edge of the base plate 501 and a ventilation hole is arranged in the middle of the base plate 501; the ventilation hole is connected to the output end of the negative pressure unit 502; wherein, the positioning unit 503 cooperates with the positioning device on the conveying robot 2 to place the sample 8 at the required position; wherein, the negative pressure unit 502 is electrically connected to the host computer 3 to control the operation of the negative pressure unit 502 after the conveying robot 2 places the sample 8 at the specified position, so as to adsorb the sample 8 on the base plate 501.

[0064] Preferably, Figures 8-9The base plate 501 is provided with a raised surface for placing sample 8. To accommodate different samples 8, if there are several small ventilation holes, sample 8 may shift position when the negative pressure unit 502 is activated, resulting in inaccurate measurement results. Therefore, the ventilation holes can be arranged as a long hole 502A; the length of the long hole 502A aligns with the length of the sample 8. When placed, the sample 8 is positioned above the long hole 502A. When the negative pressure unit 502 is activated, the sample 8 can be smoothly adsorbed, eliminating the problem of measurement inaccuracy caused by displacement of the sample 8.

[0065] At the same time, a raised plane is provided on the bottom plate 501, which can make the height of the sample 8 higher than the supporting surface of the frame 1, so as to facilitate the measurement of the thickness of the sample 8. Moreover, a negative pressure unit 502 can be provided below the raised plane to facilitate sealing with a sealant.

[0066] It should be clarified that: the positioning unit 503 can be an infrared transmitter; and the positioning device arranged on the conveying robot 2 can be an infrared receiver; when the infrared transmitter and the infrared receiver are completely corresponding, a signal is sent to the host computer 3, and the host computer 3 sends a control signal to control the conveying robot 2 to release the sample 8, and then controls the negative pressure unit 502 to work through the long hole 502A to adsorb the sample 8 on the bottom plate 501.

[0067] The measuring assembly 7 includes a first slide rail mechanism 701 for measuring the thickness of the sample 8, a second slide rail mechanism 702 for measuring the length and width of the sample 8, and a fixed frame 703 for setting the first slide rail mechanism 701 and the second slide rail mechanism 702;

[0068] In which, the fixed frame 703 is set on the rack 1 through a guide rail; a first slide rail mechanism 701 is set on the side of the fixed frame 703 perpendicular to the ground; a second slide rail mechanism 702 is set on the side of the fixed frame 703 away from the fixed component 5, and the second slide rail mechanism 702 can move linearly along the fixed frame 703, and the movement direction of the second slide rail mechanism 702 is perpendicular to the movement direction of the fixed frame 703.

[0069] The first slide rail mechanism 701 and the second slide rail mechanism 702 are both guide rail structures for linear motion. They have the same structure except for different running directions. They both include a drive motor a, a first guide rail b, a second guide rail c, a slider d, a screw e, and a measuring element g.

[0070] Among them, such as Figure 7The first guide rail b and the second guide rail c are detachably arranged on the fixed frame 703; a slider d is set in the gap between the first guide rail b and the second guide rail c; a measuring element g is set at one end of the slider d facing the sample 8 and a threaded hole is set at the end away from the sample 8; the threaded hole on the slider d is set corresponding to the screw e; one end of the screw e is connected to the output end of the drive motor a, and the other end is set on the fixed frame 703 through a bearing seat.

[0071] Example II: Figures 10-11 In actual work, the measuring component 7 can measure the length, width and thickness of the sample 8 through the CCD; since the CCD does not require linear motion to measure the size of an object, the sample 8 can be placed at a designated position.

[0072] To complete CCD size measurement, the fixing component 5 includes a transparent base plate 501, a positioning unit 503 and an illumination unit arranged on the frame 1; the measuring component 7 includes a CCD linear array 704; wherein, a row of at least two positioning units 503 are arranged on the edge of the base plate 501; wherein, the positioning unit 503 cooperates with the positioning device on the conveying robot 2 to place the sample 8 in the object field of view of the imaging objective lens and set the CCD linear array image sensitive surface at the optimal image plane position of the imaging objective lens, and completes the measurement through the illumination of the illumination unit; wherein, the CCD linear array 704 is electrically connected to the host computer 3 for measuring the size data of the sample 8.

[0073] In this embodiment, the base plate 501 is made of a transparent material, such as glass. The sample 8 is positioned by the transfer robot 2 via the positioning unit 503 and then placed on the base plate 501. Preferably, the CCD linear array 704 can be disposed on the base plate 501 on the side opposite to the sample 8 or on the side of the fixed frame 703 facing the sample 8. For ease of use, a desired lighting unit can also be provided as needed.

[0074] Preferably, the CCD linear array 704 selects two CCDs located at both ends of the base plate 501; two CCDs are used to calculate the length of the product, and CCD detection: the accuracy is field of view / (pixel*5). According to a 200 field of view and a 2000W pixel camera, the accuracy is calculated to be about 0.02mm. Using two CCDs can narrow the field of view for detection, thereby improving the accuracy of detection. In order to ensure the accuracy of measurement, the product needs to be front-lit, and when placing the product, the burr side needs to face up to prevent the burr from affecting the accuracy of detection.

[0075] During the installation process, if necessary, a crossbeam 1A can be set on the rack 1 to place the required CCD linear array 704 or lighting unit, which can be adjusted according to actual conditions.

[0076] Specific embodiment III: Of course, in the specific implementation process, a linear scanning method and a CCD linear array 704 can also be used in combination.

[0077] For example, the fixing assembly 5 includes a transparent bottom plate 501, a positioning unit 503, and an illumination unit provided on the frame 1; the measuring assembly 7 includes a CCD linear array 704 for measuring the length and width of the sample 8, and a first slide rail mechanism 701 for measuring the thickness of the sample 8;

[0078] Among them, the edge of the base plate 501 is provided with a row of at least two positioning units 503 and cooperates with the positioning device on the conveying robot 2, so as to place the sample 8 in the object field of view of the imaging objective lens and set the CCD linear array image sensitive surface at the optimal image plane position of the imaging objective lens, and complete the measurement through the illumination of the illumination unit; wherein, the CCD linear array 704 is electrically connected to the host computer 3.

[0079] Similarly, a second slide rail mechanism 702 for measuring the length and width of the sample 8 and a CCD linear array 704 for measuring the thickness of the sample 8 may also be provided as needed.

[0080] Compared with existing technologies, the system described in this invention uses measurement components to reduce dimensional measurement time from an average of approximately 45 seconds per specimen to 3-5 seconds per specimen, improving dimensional measurement efficiency by nearly 9-15 times. This addresses the inefficiency of existing specimen testing methods and their inability to meet the low-cost requirements of large-scale sample testing. Furthermore, due to the rational classification process and automatic classification, it can be linked with subsequent automated units, such as the pressure detection unit, to form a complete automated production line.

[0081] It should be clarified that the coding component 6 described in this article can choose the technical solution described in application number CN205467924.

[0082] It should be clear that the host computer 3 can be set on the rack 1, or in the control room as needed.

[0083] It should be clarified that during the process of conveying the sample 8 , the conveying robot 2 described in this article may use a negative pressure suction cup to move the sample 8 in order to protect the surface of the sample 8 .

[0084] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily make changes or substitutions within the technical scope disclosed in the present invention, and all such changes or substitutions fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A standard specimen size measurement system, characterized by: It comprises a frame (1), a conveying manipulator (2), a host computer (3), and a code scanning component (4), a fixing component (5), a code spraying component (6), and a measuring component (7) arranged on the frame (1); The host computer (3) is electrically connected to the code scanning component (4) and is used to collect incoming information of the sample (8); The host computer (3) is electrically connected to the fixing assembly (5) and is used to detect whether the sample (8) is in place and control the fixing assembly (5) to fix the sample; The host computer (3) is connected to the coding component (6) and is used to control the coding component (6) to spray a unique two-dimensional code onto the sample (8); The host computer (3) is electrically connected to the measuring component (7) and is used to collect the dimensional data of the sample (8) and determine the type of the sample (8) based on the dimensional data; The host computer (3) is electrically connected to the conveying robot (2) and is used to transport the sample (8) to the next station after the sample (8) is placed on the fixing component (5) and positioned and the type of the sample (8) is determined; The fixing assembly (5) comprises a base plate (501) arranged on the frame (1), a negative pressure unit (502), and a positioning unit (503); The edge of the bottom plate (501) is provided with a row of at least two positioning units (503), and the middle of the bottom plate (501) is provided with a ventilation hole for adsorbing the sample (8); the ventilation hole is connected to the output end of the negative pressure unit (502); the length direction of the ventilation hole is consistent with the length direction of the sample; The positioning unit (503) cooperates with the positioning device on the conveying robot (2) to place the sample (8) at a desired position; The negative pressure unit (502) is electrically connected to the host computer (3) and is used to control the operation of the negative pressure unit (502) after the conveying robot (2) places the sample (8) at a designated position.

2. A standard specimen size measurement system according to claim 1, characterized in that: The code scanning component (4) comprises a code scanning gun (401) electrically connected to the host computer (3) or comprises a code scanning unit (402) electrically connected to the host computer (3) and a door-shaped code scanning bracket (403) arranged on the frame (1); wherein the code scanning unit (402) is arranged on the crossbeam of the code scanning bracket (403) and the detection end is arranged downward.

3. A standard specimen size measurement system according to claim 1, characterized in that: The measuring assembly (7) comprises a first slide rail mechanism (701) for measuring the thickness of the sample (8), a second slide rail mechanism (702) for measuring the length and width of the sample (8), and a fixed frame (703) for arranging the first slide rail mechanism (701) and the second slide rail mechanism (702); The fixed frame (703) is arranged on the frame (1) and can move linearly along the frame (1); a first slide rail mechanism (701) is arranged on the side of the fixed frame (703) perpendicular to the ground; a second slide rail mechanism (702) is arranged on the side of the fixed frame (703) away from the fixed component (5), and the second slide rail mechanism (702) can move linearly along the fixed frame (703), and the movement direction of the second slide rail mechanism (702) is perpendicular to the movement direction of the fixed frame (703).

4. A standard specimen size measurement system according to claim 3, characterized in that: The first slide rail mechanism (701) and the second slide rail mechanism (702) each include a drive motor (a), a first guide rail (b), a second guide rail (c), a slider (d), a screw (e), and a measuring element (g); The first guide rail (b) and the second guide rail (c) are detachably arranged on the fixed frame (703); a slider (d) is arranged in the gap between the first guide rail (b) and the second guide rail (c); a measuring element (g) is arranged on one end of the slider (d) facing the sample (8), and a threaded hole is arranged on the end away from the sample (8); the threaded hole on the slider (d) is arranged corresponding to the screw (e); one end of the screw (e) is connected to the output end of the drive motor (a), and the other end is arranged on the fixed frame (703) through a fixing seat.

5. The standard specimen size measurement system according to claim 1, characterized in that: The fixing assembly (5) comprises a transparent bottom plate (501), a positioning unit (503) and a lighting unit arranged on the frame (1); The measuring component (7) includes a CCD linear array (704); Wherein, a row of at least two positioning units (503) is provided on the edge of the bottom plate (501); The positioning unit (503) cooperates with the positioning device on the conveying robot (2) to place the sample (8) in the object field of view of the imaging objective lens and to set the CCD linear array image sensitive surface at the optimal image plane position of the imaging objective lens; The CCD linear array (704) is electrically connected to the host computer (3) and is used to upload the measurement results to the host computer (3).

6. A standard specimen size measurement system according to claim 4, characterized in that: The fixing assembly (5) comprises a transparent bottom plate (501), a positioning unit (503) and a lighting unit arranged on the frame (1); The measuring assembly (7) comprises a CCD linear array (704) for measuring the length and width of the sample (8) and a screw drive mechanism for measuring the thickness of the sample (8); The edge of the bottom plate (501) is provided with a row of at least two positioning units (503) which cooperate with the positioning device on the conveying robot (2) to place the sample (8) in the object field of view of the imaging objective lens and set the CCD linear array image sensitive surface at the optimal image plane position of the imaging objective lens; the CCD linear array (704) is electrically connected to the host computer (3) to upload the measurement results to the host computer (3); The screw driving mechanism drives the screw to cooperate with the slider through a stepping motor, so that the slider moves on the corresponding guide rail, thereby completing the thickness measurement of the sample (8).

7. A method for measuring the size of a standard specimen, applied to the standard specimen size measuring system according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. The sample incoming information is determined by the scanning component and sent to the control terminal, which forms a QR code corresponding to the sample; S2. Position the sample scanned in step S1; S3. Spray the QR code on the sample positioned in step S2; S4. Measure the dimensions of the sample sprayed with the QR code; S5. Classify the above-mentioned samples by type based on the dimensional data obtained in step S4.

8. A method for measuring the size of a standard sample according to claim 7, characterized in that: The specific process of the S5 step is: The size data obtained in step S4 is uploaded to the control terminal, and the type of the sample is obtained by comparing with the database in the control terminal; at the same time, the type information of the sample is associated with the QR code information sprayed in step S3.

9. Application of the standard sample size measurement method according to claim 7 in measuring the size of mechanical property splines.

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