CN106323780A - Machine head moving type Vickers hardness meter - Google Patents
Machine head moving type Vickers hardness meter Download PDFInfo
- Publication number
- CN106323780A CN106323780A CN201610963492.3A CN201610963492A CN106323780A CN 106323780 A CN106323780 A CN 106323780A CN 201610963492 A CN201610963492 A CN 201610963492A CN 106323780 A CN106323780 A CN 106323780A
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- Prior art keywords
- head
- vickers
- screw
- ball
- motor
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0078—Hardness, compressibility or resistance to crushing using indentation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0078—Hardness, compressibility or resistance to crushing using indentation
- G01N2203/0082—Indentation characteristics measured during load
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0098—Tests specified by its name, e.g. Charpy, Brinnel, Mullen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
- G01N2203/0206—Means for supplying or positioning specimens or exchangeable parts of the machine such as indenters...
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a machine head moving type Vickers hardness meter. The machine head moving type Vickers hardness meter comprises a rack, a working platform, vertical sliding rails, a machine head and a first driving mechanism, wherein the working platform is arranged on the rack; the vertical sliding rails are arranged on the rack; the machine head can move up and down to be connected with the vertical sliding rails; and the first driving mechanism is connected with the machine head so as to drive the machine head to move up and down. According to the machine head moving type Vickers hardness meter provided by the invention, the working platform is fixed and the machine head can move, so that Vickers hardness detection can be carried out on measured pieces with greater volumes and weights.
Description
Technical field
The present invention relates to a kind of material hardness detection equipment, particularly relate to a kind of mobile frame head Vickers.
Background technology
Durometer used in China's material Vickers hardness detection, is all that detected member is placed on lower table, work
Station is arranged on the elevating screw of lower end, and owing to leading screw diameter is smaller, workbench can not be very big, and therefore user is in detection
Detection is cannot be carried out during the material Vickers hardness of bigger part.
In the detection of Vickers hardness, the impression size will got Vickers measures, during measuring,
The amplification 400 times that impression is maximum.Owing to leading screw and leading screw inner room exist glade plane space, amplify 400 times at detected impression
Time, impression deviation detection center, cause detection error, directly affect the accuracy of detection of Vickers hardness.
Summary of the invention
The present invention is inventor based on the fact that make: the Vickers in correlation technique, and head is all fixing
, workbench realizes upgrading by the elevating screw of lower end, to detect on measured piece.Diameter ratio due to leading screw of upgrading
Less, workbench can not be very big, therefore less measured piece can only carry out hardness determination, and user is detecting bigger part
Material Vickers hardness time cannot be carried out detection.
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.
Fix and the moveable mobile frame head of head to this end, it is an object of the present invention to propose a kind of work platforms
Vickers.
A kind of mobile frame head Vickers according to embodiments of the present invention, including:
Frame；
Work platforms, described work platforms is located in described frame；
Upright slide rail, described upright slide rail is located in described frame；
Head, described head can be connected with described upright slide rail up or down；
First drive mechanism, described first drive mechanism is connected with described head to drive described head to move up and down.
Advantageously, described first drive mechanism includes the first motor and the first ball screw, described first ball-screw
One end is connected with described first motor and the other end of described first ball-screw is connected with described head.
Advantageously, described first motor is servomotor.
Advantageously, described head includes:
Mounting platform, described mounting platform can be located at up or down on described upright slide rail and with described first ball-screw
The other end is connected with described mounting platform；
Capstan head, described capstan head is located at below described mounting platform and rotatable with vertical direction for axis；
Pressure head and camera lens, described pressure head and described optical center are symmetrically disposed on described capstan head；
Second drive mechanism, described second drive mechanism is connected with described mounting platform optionally to drive described pressure head upper and lower
Mobile；
Eyepiece, described eyepiece is connected optionally to be connected with described camera lens with described mounting platform.
Advantageously, described second drive mechanism includes that the second motor and the second ball-screw, described second motor are arranged on
On described mounting platform, one end of described second ball-screw is connected with described second motor and described second ball-screw another
One end is connected with described pressure head.
Advantageously, described head also includes that pressure transducer, described pressure transducer are located at the upper end of described pressure head.
Advantageously, described upright slide rail is two be arranged in parallel.
When using mobile frame head Vickers according to embodiments of the present invention to carry out hardness determination, detected member with
The gap of pressure head has been moved up and down by head.Owing to eliminating leading screw jacking system, therefore, area of platform increases
Greatly, bearing capacity is the strongest.User can be smooth in the detection complete the Vickers hardness of detected member of larger volume and weight
Complete.Owing to moving up and down of head is moved along two high accuracy slide rails, customer service spindle arrangement quality of fit effect is low,
The problem that technology difficulty is bigger, has been significantly increased the accuracy of detection of Vickers hardness.Owing to high accuracy line slide rail is standard
Product, market obtains easily, and the technique of Vickers hardness is easier to ensure that.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of mobile frame head Vickers；
Fig. 2 is the close-up schematic view of A in Fig. 1.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings a kind of mobile frame head Vickers according to embodiments of the present invention is described in detail.
As depicted in figs. 1 and 2, a kind of mobile frame head Vickers according to embodiments of the present invention, including: frame
100, work platforms 200, upright slide rail 300, head, the first drive mechanism,
Specifically, work platforms 200 is located in frame 100.
Upright slide rail 300 is located in frame 100.Advantageously, upright slide rail 300 can be two be arranged in parallel.
Described head can be connected with upright slide rail 300 up or down.
Described first drive mechanism is connected with described head to drive described head to move up and down.Advantageously, described first
Drive mechanism includes the first motor 510 and the first ball screw 520, one end of the first ball-screw 520 and the first motor 510 phase
Connect and the other end of the first ball-screw 520 is connected with described head.Advantageously, the first motor 510 can be servomotor.
Advantageously, described head includes: mounting platform 410, capstan head 420, pressure head 430, camera lens 440, the second drive mechanism,
Eyepiece 460.
Mounting platform 410 can be located at up or down on upright slide rail 300 and with the other end of the first ball-screw 520 with
Mounting platform 410 is connected.
Capstan head 420 is located at below mounting platform 410 and rotatable with vertical direction for axis.
Pressure head 430 and camera lens 440 are symmetrically located on capstan head 420.
Described second drive mechanism is connected with mounting platform 410 and moves up and down with optionally drive ram 430.
Eyepiece 460 is connected optionally to be connected with camera lens 440 with mounting platform 410.
Need exist for explanation, consistent in order to ensure the test point on measured piece 600 surface, therefore pressure head 430 and camera lens
440 are symmetrically located on capstan head 420.When measured piece 600 is observed by needs, then rotate capstan head 420 so that camera lens
Above 440 test points being positioned at measured piece 600 surface, now eyepiece 460 is connected with camera lens 440, and user can be to measured piece 600
The test point on surface is observed.And when needs carry out impression test, then rotate capstan head 420 so that pressure head 430 is positioned at tested
Above the test point on part 600 surface, described second drive mechanism can be with the drive ram 430 test point on measured piece 600 surface
Extrude impression.
Advantageously, described second drive mechanism includes the second motor 451 and the second ball-screw 452, and the second motor 451 is pacified
Being contained on mounting platform 410, one end of the second ball-screw 452 is connected with the second motor 451 and the second ball-screw 452 another
One end is connected with pressure head 430.Advantageously, described head also includes that pressure transducer 470, pressure transducer 470 are located at pressure head 430
Upper end.
Mobile frame head Vickers according to embodiments of the present invention is described below and carries out the work process of hardness determination.
Measured piece 600 is put into work platforms 200, makes the test point alignment camera lens 440 of measured piece 600.Start the first electricity
Machine 510 makes described head decline.When camera lens 440 is near measured piece 600, operator can observe tested by eyepiece 460
The definition on part 600 surface.By controlling the lifting of head, the image the most clearly that selection is observed by eyepiece 460, first
Motor 510 is shut down.Then capstan head 420 rotates, and by pressure head 430 and camera lens 440 transposition, makes pressure head 430 be directed at measured piece 600
Test point.Start the second motor 451, drive the second ball-screw 452 rotate along its central shaft and move down, be depressed into pressure and pass
Sensor 470 and pressure head 430, apply active force to the test point on measured piece 600 surface.When pressure transducer 470 detects predetermined
During force value, the second motor 451 is shut down, and keeps the above-mentioned predetermined force value scheduled time.Second motor 451 rotates backward so that pressure head
430 are raised to after initial position shut down, and rotate capstan head and make camera lens 440 rotate to the test point of measured piece 600, operator (or
Person's camera) observe and measure the size of impression, to obtain the hardness number of this hardness determination.Last first motor 510 reversely turns
Dynamic, make head be raised to initial position.
When using mobile frame head Vickers according to embodiments of the present invention to carry out hardness determination, detected member with
The gap of pressure head has been moved up and down by head.Owing to eliminating leading screw jacking system, therefore, area of platform increases
Greatly, bearing capacity is the strongest.User can be smooth in the detection complete the Vickers hardness of detected member of larger volume and weight
Complete.Owing to moving up and down of head is moved along two high accuracy slide rails, customer service spindle arrangement quality of fit effect is low,
The problem that technology difficulty is bigger, has been significantly increased the accuracy of detection of Vickers hardness.Owing to high accuracy line slide rail is standard
Product, market obtains easily, and the technique of Vickers hardness is easier to ensure that.
It is further to note that mobile frame head Vickers according to embodiments of the present invention, the first motor, second
Motor, capstan head and pressure transducer etc., all can use and automatically control, and this is for originally possessing technical staff, is permissible
Understand.
The beneficial effects of the present invention is:
Owing to using line slide rail, ball-screw and servomotor structure, it is achieved that steadily, accurately head move up and down adjustment
Pressure head and the gap of measured piece, reached head and moved up and down high-precision purpose, thus Vickers hardness can be significantly increased
Accuracy of detection.Owing to area of platform is big, space big, the measured piece of more volume and weight can be placed, simultaneously in work
Platform plane can arrange bigger XY direction and multiple special fixture, it is achieved the detection of Vickers hardness.
Owing to the precision of high accuracy line slide rail is the highest, head linearly slide rail direction is done and is moved along a straight line up and down, at impression
When amplifying 400 times or 1000 times, impression regards interior position consistency at microscope, improves Vickers hardness and measures the essence of impression size
Degree.
Pressure transducer is arranged on above pressure head, and during loading, pressure transducer feedback force value can be 1:1 output so that pass
Sensor leaving office output accuracy is higher.
Loading system can use linear bearing and feed rod coupling, motor and ball screw system, it is achieved that loading
Process minimum friction forces, loading and off-load are more precisely more steady.
Mobile frame head Vickers according to embodiments of the present invention, the parts precision used is high, ruggedness is good, work
Skill is good, stable performance, failure rate is low, manufactures faster.
Mobile frame head Vickers according to embodiments of the present invention, measures accurate, efficient, durable, practicality wide, makes
Wide by scope, deviation is little, and precision is higher, and technique is excellent, good looking appearance.User operation is convenient, and service life is long, it is adaptable in batches
Produce, be the most efficient a kind of Vickers.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " up time
Pin ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or imply that the device of indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more, unless separately
There is the most concrete restriction.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (7)
1. a mobile frame head Vickers, it is characterised in that including:
Frame；
Work platforms, described work platforms is located in described frame；
Upright slide rail, described upright slide rail is located in described frame；
Head, described head can be connected with described upright slide rail up or down；
First drive mechanism, described first drive mechanism is connected with described head to drive described head to move up and down.
Mobile frame head Vickers the most according to claim 1, it is characterised in that described first drive mechanism includes
First motor and the first ball screw, one end of described first ball-screw is connected with described first motor and described first ball
The other end of leading screw is connected with described head.
Mobile frame head Vickers the most according to claim 2, it is characterised in that described first motor is servo electricity
Machine.
Mobile frame head Vickers the most according to claim 2, it is characterised in that described head includes:
Mounting platform, described mounting platform can be located at up or down on described upright slide rail and with described first ball-screw
The other end is connected with described mounting platform；
Capstan head, described capstan head is located at below described mounting platform and rotatable with vertical direction for axis；
Pressure head and camera lens, described pressure head and described optical center are symmetrically disposed on described capstan head；
Second drive mechanism, described second drive mechanism is connected with described mounting platform optionally to drive described pressure head upper and lower
Mobile；
Eyepiece, described eyepiece is connected optionally to be connected with described camera lens with described mounting platform.
Mobile frame head Vickers the most according to claim 4, it is characterised in that described second drive mechanism includes
Second motor and the second ball-screw, described second motor is arranged on described mounting platform, the one of described second ball-screw
End is connected with described second motor and the other end of described second ball-screw is connected with described pressure head.
Mobile frame head Vickers the most according to claim 4, it is characterised in that described head also includes that pressure passes
Sensor, described pressure transducer is located at the upper end of described pressure head.
Mobile frame head Vickers the most according to claim 1, it is characterised in that described upright slide rail is parallel setting
Two put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963492.3A CN106323780A (en) | 2016-11-04 | 2016-11-04 | Machine head moving type Vickers hardness meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610963492.3A CN106323780A (en) | 2016-11-04 | 2016-11-04 | Machine head moving type Vickers hardness meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106323780A true CN106323780A (en) | 2017-01-11 |
Family
ID=57815989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610963492.3A Pending CN106323780A (en) | 2016-11-04 | 2016-11-04 | Machine head moving type Vickers hardness meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106323780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956280A (en) * | 2018-10-16 | 2018-12-07 | 马鞍山北光冶金机械有限责任公司 | A kind of engine cylinder body hardness automated test device |
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|---|---|---|---|---|
| JP2001004515A (en) * | 1999-06-22 | 2001-01-12 | Kyushu Electric Power Co Inc | Method and apparatus for measuring hardness |
| JP2005128378A (en) * | 2003-10-27 | 2005-05-19 | Nikon Corp | Stage for optical device and method of manufacturing the same |
| CN201637643U (en) * | 2010-04-13 | 2010-11-17 | 上海尚材试验机有限公司 | Digital readout Vicker hardness tester |
| JP2014035236A (en) * | 2012-08-08 | 2014-02-24 | Shimadzu Corp | Hardness testing device |
| CN203519442U (en) * | 2013-10-21 | 2014-04-02 | 上海研润光机科技有限公司 | Vickers indentation hardness measurement system |
| CN104007032A (en) * | 2014-06-17 | 2014-08-27 | 沈阳天星试验仪器有限公司 | Standard hardness machine with two high-precision force sensors |
| CN105092399A (en) * | 2014-05-21 | 2015-11-25 | 吴绍明 | Combined hardness measuring instrument |
| CN205483875U (en) * | 2016-03-23 | 2016-08-17 | 上海奥龙星迪检测设备有限公司 | Portable automatic rockwell hardness meter of aircraft nose |
| CN206270188U (en) * | 2016-11-04 | 2017-06-20 | 上海奥龙星迪检测设备有限公司 | Mobile frame head Vickers |
-
2016
- 2016-11-04 CN CN201610963492.3A patent/CN106323780A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001004515A (en) * | 1999-06-22 | 2001-01-12 | Kyushu Electric Power Co Inc | Method and apparatus for measuring hardness |
| JP2005128378A (en) * | 2003-10-27 | 2005-05-19 | Nikon Corp | Stage for optical device and method of manufacturing the same |
| CN201637643U (en) * | 2010-04-13 | 2010-11-17 | 上海尚材试验机有限公司 | Digital readout Vicker hardness tester |
| JP2014035236A (en) * | 2012-08-08 | 2014-02-24 | Shimadzu Corp | Hardness testing device |
| CN203519442U (en) * | 2013-10-21 | 2014-04-02 | 上海研润光机科技有限公司 | Vickers indentation hardness measurement system |
| CN105092399A (en) * | 2014-05-21 | 2015-11-25 | 吴绍明 | Combined hardness measuring instrument |
| CN104007032A (en) * | 2014-06-17 | 2014-08-27 | 沈阳天星试验仪器有限公司 | Standard hardness machine with two high-precision force sensors |
| CN205483875U (en) * | 2016-03-23 | 2016-08-17 | 上海奥龙星迪检测设备有限公司 | Portable automatic rockwell hardness meter of aircraft nose |
| CN206270188U (en) * | 2016-11-04 | 2017-06-20 | 上海奥龙星迪检测设备有限公司 | Mobile frame head Vickers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956280A (en) * | 2018-10-16 | 2018-12-07 | 马鞍山北光冶金机械有限责任公司 | A kind of engine cylinder body hardness automated test device |
| CN108956280B (en) * | 2018-10-16 | 2023-12-12 | 马鞍山北光冶金机械有限责任公司 | Automatic test equipment for hardness of engine cylinder block |
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