Visual Brinell hardness tester capable of digitally amplifying and testing method thereof

Abstract

The invention discloses a visual Brinell hardness tester capable of digitally amplifying and a testing method thereof. The Brinell hardness tester comprises a visual Brinell hardness tester, a digital amplifier and a digital amplifier, the test board is arranged on the visual Brinell hardness tester; the steel ball pressure head is arranged on the visual Brinell hardness tester and is pressed into the test sample under the control of the visual Brinell hardness tester; the lens is arranged on the visual Brinell hardness tester, and the position of the lens and the position of the steel ball pressure head can be switched under the control of the visual Brinell hardness tester; the camera directly faces the lens and is used for capturing indentation image information in real time and transmitting the indentation image information; the main board is provided with an image processing module which is used for carrying out zooming amplification processing on the indentation image information transmitted by the camera and received by the main board; and the display module is used for receiving the indentation image information subjected to zooming amplification processing and presenting an indentation real-time image. According to the invention, the labor intensity of operators is reduced, and the eyesight of the operators is protected from being influenced to the greatest extent.

Description

Technical Field

[0001] The invention relates to the technical field of Brinell hardness testers, and in particular to a digitally magnifiable visual Brinell hardness tester and a testing method thereof. Background Art

[0002] The Brinell hardness test is the test method with the largest indentation among all hardness tests. It can reflect the comprehensive performance of the material and is not affected by the microscopic segregation and uneven composition of the sample structure. It is a hardness test method with higher accuracy.

[0003] The working principle of the Brinell hardness tester is to press a steel ball of a certain diameter into the surface of the sample at a certain speed under the action of a certain test force, remove the test force after a specified period of time, and calculate the Brinell hardness value of the sample by measuring the diameter of the indentation ball. It is mainly used for hardness determination of materials such as cast iron, steel, non-ferrous metals and soft alloys. Since the indentation of the Brinell hardness test is large, the test process is relatively complicated, the indentation measurement operation is relatively time-consuming, and the measurement error is also relatively large, so the operator is required to have skilled experimental techniques and rich experience.

[0004] The existing Brinell hardness tester generally measures the indentation diameter through a mechanical eyepiece, which requires high experimental skills and experience of the operator. Since the image cannot be magnified, long-term use of the eyepiece will also affect the user's vision. Summary of the invention

[0005] According to an embodiment of the present invention, a digitally magnifiable visual Brinell hardness tester is provided, comprising: Visual Brinell Hardness Tester; Test bench, the test bench is set on a visual Brinell hardness tester; Steel ball indenter, which is set on the visual Brinell hardness tester, presses into the test sample under the control of the visual Brinell hardness tester, and unloads after holding the load for a period of time; The lens is arranged on the visual Brinell hardness tester and can switch positions with the steel ball indenter under the control of the visual Brinell hardness tester; The camera is directly opposite to the lens and rotates with the rotation of the lens, and is used to capture the indentation image information in real time and transmit it; A mainboard, on which an image processing module is provided, for zooming and magnifying the indentation image information transmitted by the camera received by the mainboard; The display module receives the indentation image information processed by zooming and magnification, and presents a real-time indentation image.

[0006] Furthermore, it also includes: a measuring knob, which is arranged on the visual Brinell hardness tester.

[0007] Furthermore, the mainboard is connected to the display module and the camera via a video cable.

[0008] Furthermore, the display module includes: a screen, and the screen is arranged on the visual Brinell hardness tester.

[0009] Furthermore, the visual Brinell hardness tester has an inverted "concave" structure.

[0010] According to another embodiment of the present invention, a method for testing a digitally magnified visual Brinell hardness tester is provided, comprising the following steps: Place the test sample on the test bench; Start the visual Brinell hardness tester, control the steel ball indenter to press into the test sample, and unload after holding the load for a period of time; The camera is controlled to rotate to the original steel ball indenter position, and the camera captures the indentation image of the test sample in real time and transmits the indentation image information; The image processing module on the mainboard receives the indentation image information transmitted by the camera, and transmits it to the display module after zooming and magnification processing, and the display module presents the real-time image of the indentation; After adjusting the engraved line on the display module to be tangent to the indentation image, the measurement is confirmed and the display module displays the actual hardness value of the test sample.

[0011] Furthermore, the position of the scale line on the display module can be adjusted by manipulating the measuring knob.

[0012] According to a digitally magnified visual Brinell hardness tester and its testing method according to an embodiment of the present invention, we have made improvements on the existing optical system of the hardness tester, and installed a variable-focus CMOS / CCD camera at the position of the eyepiece to replace the eyepiece. The camera is used to capture the indentation image information in real time and transmit it to the image processing unit on the mainboard. The unit can magnify the indentation image to different sizes and project it onto the display screen, which is convenient for the operator to measure the indentation diameter. At the same time, a measuring knob is set next to the screen to facilitate the user's measurement operation. It not only reduces the labor intensity of the operator, but also protects the operator's eyesight to the maximum extent.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic structural diagram of a digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention.

[0015] Figure 2 The present invention is a flowchart of a testing method of a digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0017] First, combine Figure 1 A digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention is described, which is used for hardness testing and has a wide range of application scenarios.

[0018] like Figure 1 As shown, a digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention comprises a visual Brinell hardness tester 1, a test bench 2, a steel ball indenter 3, a lens 4, a camera 5, a mainboard 6 and a display module 7.

[0019] Specifically, Figure 1 As shown, the test bench 2 is arranged on the visual Brinell hardness tester 1 and is used for placing the test sample 12 to be tested.

[0020] Specifically, Figure 1 As shown, the steel ball indenter 3 is arranged on the visual Brinell hardness tester 1, and is pressed into the test sample 12 under the control of the visual Brinell hardness tester 1, and is unloaded after being held for a period of time.

[0021] Specifically, Figure 1 As shown, the lens 4 is arranged on the visual Brinell hardness tester 1 and can switch positions with the steel ball indenter 3 under the control of the visual Brinell hardness tester 1 .

[0022] Specifically, Figure 1 As shown, the camera 5 is directly opposite to the lens 4 and rotates with the rotation of the lens 4, so as to capture and transmit the indentation image 10 information in real time. The camera 5 adopts CMOS or CCD.

[0023] Specifically, Figure 1 As shown, an image 10 processing module is provided on the main board 6 , which is used to perform zooming and magnification processing on the indentation image 10 information transmitted by the camera 5 and received by the main board 6 .

[0024] Specifically, Figure 1 As shown, the display module 7 receives the zoomed indentation image 10 information and presents the real-time indentation image 10. The display module 7 comprises: a screen, which is arranged on the visual Brinell hardness tester 1.

[0025] Further, if Figure 1 As shown, a digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention further comprises: a measuring knob 8, which is arranged on the visual Brinell hardness tester 1 for easy operation by human personnel.

[0026] Further, if Figure 1 As shown, the mainboard 6 is connected to the display module 7 and the camera 5 via a video cable 9 .

[0027] Further, if Figure 1 As shown, the visual Brinell hardness tester 1 is an inverted "concave" structure, and the overall structure is more compact.

[0028] Working principle: Place the test sample 12 on the test bench 2; Start the visual Brinell hardness tester 1, control the steel ball indenter 3 to press into the test sample 12, and unload after holding the load for a period of time; The camera 4 is controlled to rotate to the original position of the steel ball indenter 3, and the camera 5 captures the indentation image 10 of the test sample 12 in real time and transmits the indentation image 10 information; The image 10 processing module on the main board 6 receives the indentation image 10 information transmitted by the camera 5, and transmits it to the display module 7 after zooming and magnification processing, and the display module 7 presents the real-time indentation image 10; After the engraved line on the display module 7 is adjusted to be tangent to the indentation image 10 by manipulating the measuring knob 8 , the measurement is confirmed and the display module 7 displays the measured hardness value 13 of the test sample 12 .

[0029] As described above, in a digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention, we have made improvements on the existing optical system of the hardness tester, and installed a variable-focus CMOS / CCD camera 5 at the position of the eyepiece to replace the eyepiece. The camera 5 is used to capture the indentation image information in real time and transmit it to the image 10 processing unit on the main board 6. The unit can magnify the indentation image 10 to different sizes and project it onto the display screen, which is convenient for the operator to measure the indentation diameter. At the same time, a measuring knob 8 is set next to the screen to facilitate the user's measurement operation. It not only reduces the labor intensity of the operator, but also protects the operator's vision to the greatest extent.

[0030] The above combined with Figure 1 A digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention is described. Further, the present invention can also be applied to a testing method of a digitally magnifiable visual Brinell hardness tester.

[0031] like Figure 1~2 According to another embodiment of the present invention, a method for testing a digitally magnifiable visual Brinell hardness tester is provided, comprising the following steps: S1: Place the test sample 12 on the test bench 2.

[0032] S2: Start the visual Brinell hardness tester 1, control the steel ball indenter 3 to press into the test sample 12, and unload after holding the load for a period of time.

[0033] S3: Control the lens 4 to rotate to the original position of the steel ball indenter 3, and the camera 5 captures the indentation image 10 of the test sample 12 in real time and transmits the indentation image 10 information.

[0034] S4: the image 10 processing module on the main board 6 receives the indentation image 10 information transmitted by the camera 5 and transmits it to the display module 7 after zooming and magnification processing, and the display module 7 presents the real-time indentation image 10 .

[0035] S5: After adjusting the engraved line on the display module 7 to be tangent to the indentation image 10 , the measurement is confirmed, and the display module 7 displays the measured hardness value 13 of the test sample 12 .

[0036] Furthermore, in this embodiment, the position of the engraved lines on the display module 7 can be adjusted by manipulating the measuring knob 8 .

[0037] Above, refer to Figure 2 A test method for a digitally magnifiable visual Brinell hardness tester according to an embodiment of the present invention is described. We have innovatively upgraded the traditional optical observation system of the hardness tester by introducing a CMOS / CCD camera 5 with adjustable focal length as a replacement for the eyepiece. This design innovation enables the real-time image 10 of the indentation to be captured directly by the camera 5 and instantly transmitted to the advanced image 10 processing module built into the mainboard 6. The module has a powerful image 10 processing function, which can flexibly enlarge the captured indentation image 10 to the required size, and then project the clear enlarged image 10 onto the display screen, which greatly facilitates the operator to accurately measure the indentation diameter.

[0038] To further optimize the user experience, we added an intuitive measurement knob next to the display. This user-friendly design allows users to easily adjust during the measurement process, further simplifying the operation process and reducing the workload. In addition, this technical improvement not only significantly reduces the physical fatigue caused by long-term visual observation of operators, but also effectively protects their vision health, achieving a dual improvement in work efficiency and operator well-being.

[0039] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A digitally magnifiable visual Brinell hardness tester, characterized in that: Include: Visual Brinell Hardness Tester; A test bench, the test bench being arranged on the visual Brinell hardness tester; A steel ball indenter, which is arranged on the visual Brinell hardness tester, presses the test sample under the control of the visual Brinell hardness tester, and unloads after holding the load for a period of time; A lens, wherein the lens is arranged on the visual Brinell hardness tester and can switch positions with the steel ball indenter under the control of the visual Brinell hardness tester; A camera, which is directly opposite to the lens and rotates along with the rotation of the lens, and is used to capture the indentation image information in real time and transmit it; A mainboard, wherein an image processing module is provided on the mainboard, and is used for zooming and magnifying the indentation image information transmitted by the camera and received by the mainboard; The display module receives the indentation image information processed by zooming and magnification, and presents a real-time indentation image.

2. The digitally magnifiable visual Brinell hardness tester according to claim 1, characterized in that: It also includes: a measuring knob, which is arranged on the visual Brinell hardness tester.

3. The digitally magnifiable visual Brinell hardness tester according to claim 1, characterized in that: The mainboard is connected to the display module and the camera via a video cable.

4. The digitally magnifiable visual Brinell hardness tester according to claim 1, characterized in that: The display module comprises: a screen, and the screen is arranged on the visual Brinell hardness tester.

5. The digitally magnifiable visual Brinell hardness tester according to claim 1, characterized in that: The visual Brinell hardness tester is an inverted "concave" structure.

6. A method for testing a digitally magnified visual Brinell hardness tester, characterized in that: The following steps are included: Place the test sample on the test bench; Start the visual Brinell hardness tester, control the steel ball indenter to press into the test sample, and unload after holding the load for a period of time; The camera is controlled to rotate to the original steel ball indenter position, and the camera captures the indentation image of the test sample in real time and transmits the indentation image information; The image processing module on the mainboard receives the indentation image information transmitted by the camera, and transmits it to the display module after zooming and magnification processing, and the display module presents the real-time image of the indentation; After adjusting the engraved line on the display module to be tangent to the indentation image, the measurement is confirmed and the display module displays the actual hardness value of the test sample.

7. The test method of the digitally magnifiable visual Brinell hardness tester as claimed in claim 6, characterized in that: The position of the scale line on the display module can be adjusted by manipulating the measuring knob.

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