CN201637644U - Automatic digital readout Brinell image measuring hardness meter - Google Patents
Automatic digital readout Brinell image measuring hardness meter Download PDFInfo
- Publication number
- CN201637644U CN201637644U CN2010201597801U CN201020159780U CN201637644U CN 201637644 U CN201637644 U CN 201637644U CN 2010201597801 U CN2010201597801 U CN 2010201597801U CN 201020159780 U CN201020159780 U CN 201020159780U CN 201637644 U CN201637644 U CN 201637644U
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- pressure head
- controller
- motor
- hardness meter
- lever
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
An automatic digital readout Brinell image measuring hardness meter comprises a frame, a lifting sample platform, a pressure head, a lever and a power mechanism connected at the rear end of the lever, wherein the power mechanism comprises a motor and a ball screw connected with the motor; the upper end of the ball screw is connected with the rear end of the lever, and the lower end thereof is connected with an output shaft of the motor by a gear pair; a pressure sensor is fixed between the pressure head and a pressure head handle; the signal output end of the pressure sensor is connected with a controller; the side of the pressure head is provided with a digital automatic coder, the signal output end of which is connected with the controller; and the controller is connected with the control signal end of the motor by output signals. In the hardness meter, the pressure value of the pressure head is measured by the sensor, and transmitted to the controller, the controller controls a loading mechanism so as to control that the pressure head is applied with accurate load during the process of loading and load keeping process, and the dent on the sample is read by the digital automatic coder so as to form the hardness value which is transmitted to the controller for display.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to the testing material hardness device, particularly a kind of digital display Bu Shi image automatically measuring hardness meter.
Background technology:
Existing Brinell tester adopts hammer pressure mode imposed load, and not only structure heaviness, and measuring error is big, and precision is not enough; And, need carry out manual measurement, complex operation, inefficiency to impression.The structure that adopts motor-driven is also arranged, and still, its Bao He mechanism is a Purely mechanical, protects the lotus time and generally has only discrete several numerical value, can not regulate continuously and protect the lotus time, be not easy to test various samples, and degree of accuracy is not high.
Summary of the invention:
The purpose of this utility model is to provide a kind of digital display Bu Shi image automatically measuring hardness meter, described this digital display Bu Shi image automatically measuring hardness meter to solve in the prior art Brinell tester loading mode error big, protect the lotus time and can not regulate at random according to sample, cause that measuring accuracy is low, the technical matters of inconvenient operation.
This digital display Bu Shi image automatically measuring hardness meter of the present utility model, by fuselage, be fixed on the lifting sample bench on the fuselage, be arranged on the pressure head and the lever of sample bench top, and the actuating unit that is connected lever rear end constitutes, wherein, described actuating unit is made of motor and the ball-screw that is connected with described motor, the upper end of described ball-screw is connected with the rear end of described lever, the lower end of ball screw is connected with the output shaft of motor by gear pair, described pressure head is fixed on the pressure head handle, the upper end of described pressure head handle is connected with lever, be provided with a pressure transducer between pressure head and the pressure head handle, the signal output part of described pressure transducer is connected with an analog to digital converter by amplifier, described analog to digital converter is connected with a controller, the pressure head side is provided with a digital autocoder, the signal output part of described digital autocoder is connected with described controller, and controller is connected with the control signal end of motor.
Further, described motor is a stepper motor.
Further, described sample bench is arranged on the screw rod, and described screw rod cooperates with nut on being arranged on fuselage and constitutes screw thread pair.
Further, described controller is connected with a display and keyboard.
Further, described controller is a single-chip microcomputer.
Principle of work of the present utility model is: collect electric signal from pressure transducer, be input to analog to digital converter through behind the amplifier, AD574 for example, after analog to digital conversion, voltage analog signal is become digital signal, the control motor carries out loading, protects in the closed-loop control system of lotus, off-load after the via controller calculation process again, and sclerometer in the course of the work, and the subtle change of power value can compensate automatically; Impression after the test is read by digital autocoder, and forms hardness number, sends controller to for showing.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model adopts the force value of sensor measurement pressure head in Brinell tester, pass to controller, by controller control loading mechanism, so that the control pressure head applies load accurately in loading, guarantor lotus process, impression on the sample reads, forms hardness number by digital autocoder, sends controller to for showing.
Description of drawings:
Fig. 1 is the structural representation of digital display Bu Shi image automatically measuring hardness meter of the present utility model.
Embodiment:
Embodiment 1:
As shown in Figure 1, digital display Bu Shi image automatically measuring hardness meter of the present utility model, comprise fuselage 1, be fixed on the lifting sample bench 2 on the fuselage 1, the pressure head 3 of sample bench top, lever 4, and the actuating unit that is connected lever 4 rear ends, wherein, described actuating unit comprises motor 5 and the ball-screw 6 that is connected with described motor 5, described ball-screw 6 upper ends are connected with described lever 4 rear ends, described ball screw 6 lower ends are connected by the output shaft of gear pair 7 with motor 5, described pressure head 3 is fixed on the pressure head handle 31, described pressure head handle 31 upper ends are connected with described lever 4, also be fixed with pressure transducer 8 between described pressure head 3 and the described pressure head handle 31, the signal output part of described pressure transducer 8 is connected with analog to digital converter by amplifier, described analog to digital converter is connected with controller 9, be provided with digital autocoder 10 in described pressure head 3 sides, the signal output part of described digital autocoder 10 links to each other with described controller 9, and described controller 9 links to each other with the control signal end of described motor 5 by output signal.
Further, described motor 5 is stepper motors.
Further, described sample bench 2 is arranged on the screw rod 21, institute's screw rod 21 formation screw thread pair that matches with nut 22 on being arranged at described fuselage 1.
Further, being connected with described controller 9 also is provided with a display 11 and keyboard, can show the hardness number of institute's test specimens in real time, and carry out function selecting by keyboard.
Further, described controller is a single-chip microcomputer.
Claims (5)
1. digital display Bu Shi image automatically measuring hardness meter, by fuselage, be fixed on the lifting sample bench on the fuselage, be arranged on the pressure head and the lever of sample bench top, and the actuating unit that is connected lever rear end constitutes, it is characterized in that: described actuating unit is made of motor and the ball-screw that is connected with described motor, the upper end of described ball-screw is connected with the rear end of described lever, the lower end of ball screw is connected with the output shaft of motor by gear pair, described pressure head is fixed on the pressure head handle, the upper end of described pressure head handle is connected with lever, be provided with a pressure transducer between pressure head and the pressure head handle, the signal output part of described pressure transducer is connected with an analog to digital converter by amplifier, described analog to digital converter is connected with a controller, the pressure head side is provided with a digital autocoder, the signal output part of described digital autocoder is connected with described controller, and controller is connected with the control signal end of motor.
2. digital display Bu Shi image automatically measuring hardness meter as claimed in claim 1, it is characterized in that: described motor is a stepper motor.
3. digital display Bu Shi image automatically measuring hardness meter as claimed in claim 1, it is characterized in that: described sample bench is arranged on the screw rod, and described screw rod cooperates with nut on being arranged on fuselage and constitutes screw thread pair.
4. digital display Bu Shi image automatically measuring hardness meter as claimed in claim 1, it is characterized in that: described controller is connected with a display and keyboard.
5. digital display Bu Shi image automatically measuring hardness meter as claimed in claim 1, it is characterized in that: described controller is a single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201597801U CN201637644U (en) | 2010-04-15 | 2010-04-15 | Automatic digital readout Brinell image measuring hardness meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201597801U CN201637644U (en) | 2010-04-15 | 2010-04-15 | Automatic digital readout Brinell image measuring hardness meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637644U true CN201637644U (en) | 2010-11-17 |
Family
ID=43082148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201597801U Expired - Fee Related CN201637644U (en) | 2010-04-15 | 2010-04-15 | Automatic digital readout Brinell image measuring hardness meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807708A (en) * | 2015-05-07 | 2015-07-29 | 济南时代试金仪器有限公司 | Fully automatic Rockwell hardness meter and control method |
| CN105300302A (en) * | 2015-09-21 | 2016-02-03 | 湖北航天技术研究院计量测试技术研究所 | Diameter measurement method for Brinell hardness indent circle |
-
2010
- 2010-04-15 CN CN2010201597801U patent/CN201637644U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807708A (en) * | 2015-05-07 | 2015-07-29 | 济南时代试金仪器有限公司 | Fully automatic Rockwell hardness meter and control method |
| CN105300302A (en) * | 2015-09-21 | 2016-02-03 | 湖北航天技术研究院计量测试技术研究所 | Diameter measurement method for Brinell hardness indent circle |
| CN105300302B (en) * | 2015-09-21 | 2017-10-27 | 湖北航天技术研究院计量测试技术研究所 | The measuring method of Brinell circular diameter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20150415 |
|
| EXPY | Termination of patent right or utility model |