CN210322574U - Vickers hardness tester for detecting special metal material - Google Patents
Vickers hardness tester for detecting special metal material Download PDFInfo
- Publication number
- CN210322574U CN210322574U CN201921013151.5U CN201921013151U CN210322574U CN 210322574 U CN210322574 U CN 210322574U CN 201921013151 U CN201921013151 U CN 201921013151U CN 210322574 U CN210322574 U CN 210322574U
- Authority
- CN
- China
- Prior art keywords
- vickers hardness
- hardness tester
- ccd image
- image sensor
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
This the utility model relates to a measuring instrument technical field especially relates to a vickers hardness tester that special metal material detected usefulness, include: body, pressure sensor and CCD image sensor. By utilizing the automatic detection of the pressure sensor on the pressure data and the automatic detection of the length of the diagonal line of the indentation by the CCD image sensor, the detection data of special metals made of different materials can be conveniently read and stored without manual visual inspection; the hardness tester integrates image acquisition and hardness measurement, and is intelligently controlled, convenient and fast to operate and high in measurement precision.
Description
Technical Field
The utility model relates to a measuring instrument technical field especially relates to a vickers hardness tester that special metal material detected usefulness.
Background
The physical meaning represented by the Brinell hardness, Rockwell hardness and Vickers hardness values is the ability of the surface of a material to resist indentation by a hard object, which may reflect a combination of elasticity, plasticity, strength and toughness of the material. Among them, the vickers hardness test is mainly used for a small load vickers hardness test in material research and scientific experiments, and is used for testing the hardness of small-sized precision parts, the hardness of a surface hardened layer and the depth of an effective hardened layer, the surface hardness of a plating layer, the hardness of a sheet material and a thin wire rod, the hardness in the vicinity of a blade, the hardness of a dental material, and the like.
The testing principle of Vickers hardness: pressing a load within 120kg and a diamond square cone with an apex angle of 136 degrees into the surface of the material by a Vickers hardness tester, observing the surface area of an indentation pit of the material under a microscope, and dividing the surface area by the load value to obtain the Vickers hardness value. Or, the workpiece surface is pressed through a stepping motor, and then the length of the diagonal line of the indentation is measured through a reading microscope. And then measuring the Vickers hardness by using a conversion relation between the diagonal line and the test force. The vickers hardness value is the quotient of the test force divided by the surface area of the indentation. Vickers hardness value calculation formula: vickers hardness HV ═ constant × test force/indentation surface area.
Because the test force of the Vickers hardness test is very small, the indentation is also very small, and the appearance and the service performance of the sample can not be influenced. The micro Vickers hardness test is mainly used for the research of metalology and metallography, is used for measuring the hardness of each composition phase in a metal structure, and is used for the research of the brittleness of refractory compounds and the like. The micro vickers hardness test is also used for testing very small or very thin parts, which can be as thin as 3 μm in thickness.
At present, the hardness detection of a traditional Vickers hardness tester for measuring metal needs manual visual inspection of a test piece loaded and pressed by an eyepiece, and then corresponding hardness values are obtained through comparison, so that great difficulty is brought to data reading and detection result storage; moreover, for the traditional vickers hardness tester for measuring special metals under the condition of different materials, no traditional test reference data exists, the traditional vickers hardness tester based on the structural rigid plate needs to continuously adjust the test environment and artificially record the detection data, and the traditional hardness detection and recording can not meet the actual requirements under the trend that products are increasingly diversified.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a vickers hardness tester that special metal material detected usefulness, include:
the device comprises a body, a central processing unit and a control unit, wherein the central processing unit is arranged in the body;
the pressure sensor is arranged above the front side of the lower part of the body and is electrically connected with the central processing unit;
and the CCD image sensor is arranged below the front side of the upper part of the body and is electrically connected with the central processing unit.
Preferably, the device also comprises an ocular lens which is arranged at the front end of the CCD image sensor.
Preferably, the CCD image sensor further comprises an LED light source which is arranged below the inner wall of the upper part of the body, surrounds the outside of the CCD image sensor and is electrically connected with the central processing unit.
Preferably, the sensing signal of the pressure sensor is amplified by an amplifier and then transmitted to the central processing unit.
Preferably, the LCD display screen is arranged above the front side of the outer wall of the body and is electrically connected with the central processing unit.
Preferably, the LCD display is a touch-type LCD display.
Has the advantages that: the utility model discloses a Vickers hardness tester that special metal material detected usefulness, through utilizing pressure sensor to the automated inspection of pressure data and CCD image sensor to the automated inspection of indentation diagonal length, need not artifical range estimation, read and preserve the detection data of the special metal of different materials conveniently; the hardness tester integrates image acquisition and hardness measurement, and is intelligently controlled, convenient and fast to operate and high in measurement precision.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a vickers hardness tester for detecting a special metal material of the present invention.
Fig. 2 is a circuit diagram of an embodiment of the vickers hardness tester for detecting the special metal material of the present invention.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are preferred embodiments of the present invention. It is to be understood that the described embodiments are merely a subset of the embodiments of the invention, and not all embodiments; it should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
An embodiment of the utility model provides a vickers hardness tester that special metal material detected usefulness, as shown in fig. 1, 2, specifically can include following module: body, pressure sensor and CCD image sensor. A central processing unit is arranged in the body, wherein the model of the central processing unit is AT89C 51; the pressure sensor is arranged above the front side of the lower part of the body and is electrically connected with the central processing unit; and the CCD image sensor is arranged below the front side of the upper part of the body and is electrically connected with the central processing unit. Preferably, an eyepiece is arranged at the front end of the CCD image sensor of the Vickers hardness tester.
In specific implementation, the sensing signal of the pressure sensor is amplified by an amplifier and then transmitted to the central processing unit. Because the weak induction signal is amplified, the I/O level threshold of a central processing unit can be met, the sensitivity of signal detection is provided, and the reliability of detection is ensured.
In an optional embodiment, the Vickers hardness tester further comprises an LED light source arranged below the inner wall of the upper part of the body, surrounding the CCD image sensor and electrically connected with the central processing unit. Because the LED light source is designed in a surrounding mode, the LED light source surrounds the periphery of the CCD image sensor and can irradiate the equipment to be tested for 360 degrees, and the CCD image sensor is favorable for capturing good reflected induction light.
In another optional embodiment, the vickers hardness tester further comprises an LCD screen disposed above the front surface of the outer wall of the body and electrically connected to the central processor. In the embodiment, the LCD screen is a touch type LCD screen, a display of a personal computer is not required to be connected externally, the display screen is integrated with the Vickers hardness tester into a whole, and the device is simple in structure and convenient to operate.
The embodiment of the utility model provides a theory of operation of vickers hardness tester: an LED light source on a Vickers hardness tester is started, the surface of a special metal workpiece placed on a pressure sensor is pressed through a stepping motor, a central processing unit obtains pressure data detected by the pressure sensor and the length of an indentation diagonal line detected by a CCD image sensor, the Vickers hardness value is calculated by substituting a Vickers hardness value calculation formula which is a constant multiplied by a pressure value/indentation surface area, and the Vickers hardness value is displayed through an LCD display screen. And the diagonal length of the indentation can obtain the surface area of the indentation according to a preset conversion table.
In summary, the vickers hardness tester for detecting the special metal material provided by the embodiment of the invention conveniently reads and stores the detection data of the special metal of different materials by utilizing the automatic detection of the pressure sensor on the pressure data and the automatic detection of the diagonal length of the indentation by the CCD image sensor without manual visual inspection; the hardness tester integrates image acquisition and hardness measurement, and is intelligently controlled, convenient and fast to operate and high in measurement precision.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
It should also be noted that in the description of the present specification, reference to the description of the term "one embodiment", "some embodiments", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. A Vickers hardness tester for detecting special metal materials is characterized by comprising:
the device comprises a body, a central processing unit and a control unit, wherein the central processing unit is arranged in the body;
the pressure sensor is arranged above the front side of the lower part of the body and is electrically connected with the central processing unit;
and the CCD image sensor is arranged below the front side of the upper part of the body and is electrically connected with the central processing unit.
2. The vickers hardness tester for testing a special metallic material as claimed in claim 1, further comprising an eyepiece disposed at a front end of said CCD image sensor.
3. The Vickers hardness tester for testing specific metal materials according to claim 2, further comprising an LED light source disposed below the inner wall of the upper portion of the body, surrounding the outside of the CCD image sensor, and electrically connected to the CPU.
4. The vickers hardness tester for testing a special metal material as claimed in claim 1, wherein a sensing signal of said pressure sensor is amplified by an amplifier and transmitted to said cpu.
5. The Vickers hardness tester for testing specific metal materials according to any one of claims 1 to 4, further comprising an LCD screen disposed over the front surface of the outer wall of the body and electrically connected to the CPU.
6. The Vickers hardness tester for testing specific metal materials according to claim 5, wherein the LCD screen is a touch type LCD screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013151.5U CN210322574U (en) | 2019-07-01 | 2019-07-01 | Vickers hardness tester for detecting special metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013151.5U CN210322574U (en) | 2019-07-01 | 2019-07-01 | Vickers hardness tester for detecting special metal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322574U true CN210322574U (en) | 2020-04-14 |
Family
ID=70147941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921013151.5U Expired - Fee Related CN210322574U (en) | 2019-07-01 | 2019-07-01 | Vickers hardness tester for detecting special metal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210322574U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014252A (en) * | 2020-09-02 | 2020-12-01 | 徐州工程学院 | Brinell hardness field measuring device for small-diameter pipe |
| CN115791384A (en) * | 2023-01-09 | 2023-03-14 | 苏州熠品质量技术服务有限公司 | Ball pressure test indentation measurement system based on machine vision |
-
2019
- 2019-07-01 CN CN201921013151.5U patent/CN210322574U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014252A (en) * | 2020-09-02 | 2020-12-01 | 徐州工程学院 | Brinell hardness field measuring device for small-diameter pipe |
| CN112014252B (en) * | 2020-09-02 | 2023-03-14 | 徐州工程学院 | Brinell hardness field measuring device for small-diameter pipe |
| CN115791384A (en) * | 2023-01-09 | 2023-03-14 | 苏州熠品质量技术服务有限公司 | Ball pressure test indentation measurement system based on machine vision |
| CN115791384B (en) * | 2023-01-09 | 2023-04-21 | 苏州熠品质量技术服务有限公司 | Ball press test indentation measurement system based on machine vision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4056884B2 (en) | Coordinate measuring device having a probe head for probing a work place | |
| CN210322574U (en) | Vickers hardness tester for detecting special metal material | |
| Ovcharenko et al. | A novel test rig for in situ and real time optical measurement of the contact area evolution during pre-sliding of a spherical contact | |
| US4987898A (en) | Method and device for the non-invasive measurement of pressure | |
| JPS59216237A (en) | Data input unit | |
| JP2007183190A (en) | Microhardness measuring method and microhardness meter | |
| CN101008580A (en) | Resistance type wave height gauge | |
| Mallos | An electrical caliper for continuous measurement of relative displacement | |
| CN200989867Y (en) | Micromachine type CCD young's modulus tester | |
| EP1538608A3 (en) | Electromagnetic void-sensing probes and position control systems | |
| JPWO2016194985A1 (en) | Measuring device for performing indentation / creep test, test method, physical property evaluation program, and recording medium recording the physical property evaluation program | |
| KR20100058033A (en) | Probe for tactile measurement device and the measurement device using it | |
| CN109313215B (en) | Data processing device for scanning probe microscope | |
| RU167852U1 (en) | DEVICE FOR MEASURING MECHANICAL PROPERTIES OF MATERIALS | |
| RU2061405C1 (en) | Device for determining mechanical properties of biological tissues | |
| RU64778U1 (en) | MANUAL STATIC HARDWARE METER | |
| JP2768773B2 (en) | Hardness measuring device | |
| KR910020434A (en) | Ultrasound Imaging Device | |
| JP2001324375A (en) | Minute weighting detector and minute weighting measuring device | |
| CN208567668U (en) | A kind of clearance gauge | |
| JPH1123449A (en) | Holding power-measuring device of adhesive material and method therefor | |
| JP3871164B2 (en) | Automatic test force hardness tester | |
| JPH0625723B2 (en) | Hardness tester | |
| JP3877023B2 (en) | Vickers hardness tester | |
| SU1619132A1 (en) | Device for sclerometric investigations of materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 Termination date: 20210701 |