CN1273816C - Portable full digital direct testing universal hardness meter - Google Patents
Portable full digital direct testing universal hardness meter Download PDFInfo
- Publication number
- CN1273816C CN1273816C CN 200410012621 CN200410012621A CN1273816C CN 1273816 C CN1273816 C CN 1273816C CN 200410012621 CN200410012621 CN 200410012621 CN 200410012621 A CN200410012621 A CN 200410012621A CN 1273816 C CN1273816 C CN 1273816C
- Authority
- CN
- China
- Prior art keywords
- force
- seat
- support
- test
- pressure head
- 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
Abstract
The present invention relates to a portable full digital direct-testing universal sclerometer which belongs to the technical field of testing instruments for the performance of the mechanics of materials. The present invention is mainly composed of a cabinet machine frame, a force sealing frame capable of fixing the machine frame, a test force loading device, a displacement sensing device of a press head, and a sensor signal and data processing system, wherein the force sealing frame comprises at least two upright posts which are distributed at both sides of a machine seat and support the entire machine frame, and a magnetic seat which can be connected with a tested sample or a support bottom plate of the tested sample through magnetic force is fixed at the lower end of the force sealing frame; the test force loading device is mainly composed of a worm rod, a worm wheel, a worm-wheel shaft, a force sensor seat, a force sensor, a press plate, a press head seat and a replaceable press head; a measuring head at the lower end of the displacement sensing device of the press head comes into contact with the press head or the upper end of the press head seat normally, and the shell of the displacement sensing device of the press head is fixed on an extension sleeve through a supporting plate and a supporting column. The present invention has the characteristic of portability and is adapt to the on-scene hardness testing of different testing occasions and test samples in various shapes. The present invention can judge the validity of tests in an online mode and obtain test results in an online mode. After different press heads are replaced, corresponding conventional hardness tests can be carried out.
Description
Technical field
The present invention relates to a kind of portable digital direct test all-purpose sclerometer, belong to material mechanical performance testing tool technical field.
Background technology
The instrument of detection metal hardness commonly used comprises Brinell tester, Rockwell hardometer, superficial Rockwell hardness tester, Shore (Richter scale) sclerometer and Vickers.All types of sclero scopes are all only corresponding to a kind of metal hardness test method, or based on a kind of hardness test method, other one, two kind be the auxilliary hardness test of a few scale wherein (and can only do), therefore do not possess versatility; Though statistics have shown that Bu Shi, Rockwell, surperficial Rockwell, Leeb Hardness Tester come into operation at present, but it has only removed the manually-operated and the calculating of contents such as impression measurement, sample mean hardness, hardness indicating value fluctuation degree, can not carry out the process of the test major parameter shows and control, can not real-time judge the validity of test, that is to say that existing sclerometer does not possess digitizing function.It is " digital versatile sclerometer " (patent No. ZL 00 2 55836.X) that prior art discloses a patent name, it has solved scleroscopic versatility and digitizing problem well, but this is a kind of bench mounted hardness tester, in can only detecting, small sample, the field of employment is also fixed, and inconvenience is carried into on-the-spot the use.
That uses at present has a kind of portable hardometer, and hammering type Brinell hardness tester, hand-held Shore hardness tester and Leeb Hardness Tester are wherein arranged.Though these sclerometers can be carried into on-the-spot the use, can detect bulk specimen, and obvious defects is arranged, as: 1, all belong to dynamic loading test sclerometer, test findings only has relativity, and accuracy, consistance are poor; 2, hammering type Brinell hardness tester, hand-held Shore hardness tester can not online acquisition test findings; If 3 on-the-spot samples require directly to measure the hardness number of other scale commonly used, existing above-mentioned portable hardometer just can't carry out.
Summary of the invention
Technical purpose of the present invention is: 1, provide a kind of can be used for easily directly testing each metalloid, various sizes, various tested shape, as the portable totally digitilized universal hardness meter of little load Bu Shi, Rockwell, surperficial Rockwell, Vickers and the little load Vickers hardness of plane, face of cylinder sample; 2, described sclerometer miniaturization, the field of employment both can be fixed, and also can be carried into on-the-spot the use; 3, directly test the hardness number of test button scale commonly used, the online test findings of obtaining does not need the conversion of hardness number between each scale; 4, the degree of depth that shows test power size and pressure head pressing in sample in the process of the test in real time; 5, the validity of online this test of judgement during off-test, and carry out experimental data processing, demonstration, storage.
Technical scheme of the present invention is: described portable digital direct test all-purpose sclerometer, and it mainly is made up of following part: a, a cabinet rack, it mainly is made up of with the spreading cover of fixedlying connected with its lower end support; B, the force-closed framework that energy is fixing with frame, it comprises at least two columns that are distributed in the whole frame of support of support both sides, between this column and the support for can move and fixedlying connected of dismantling, fixedly connected with crossbeam in column upper end, the magnet base that an energy and the bearing plate of tested sample or tested sample are connected with magnetic force is fixed in its lower end; C, a test force loading device that is installed in the frame, it mainly is made up of worm screw, worm gear, worm-wheel shaft, force transducer seat, force transducer, pressing plate, pressing head seat, removable pressure head, wherein the worm screw lower support is fixed in the support, the worm-wheel shaft lower end is connected with force transducer seat screwed hole of centre, constitute the power transmission screw thread pair, force transducer is between force transducer seat and pressing plate, and pressure head is by the pressure head lining location that is fixed on spreading cover lower end center pit; D, a displacement of pressing head sensing device, displacement transducer wherein are below worm-wheel shaft, and its lower end measuring head often contacts with pressure head or pressing head seat upper end, and its housing is fixed in the spreading cover by support plate, pillar; E, sensor signal and data handling system.
The invention has the beneficial effects as follows: portable small-sizedization structure, both can use at fixed-sites such as laboratories, can be carried into on-the-spot the use again; Highly versatile, pressure head is connected with the conical surface or the face of cylinder with pressing head seat, in machine, change pressure head after, little load Bu Shi, Rockwell, surperficial Rockwell, Vickers and the little load Vickers hardness that can directly test all kinds of test buttons; The scope of application to specimen size and shape is big, can carry out the plane and the face of cylinder hardness test of large, medium and small sample; The digitized degree height, the online test validity that carries out is judged the online trial value of obtaining.
Description of drawings
Fig. 1 is during the present invention tests, the front view of the preferred embodiment general structure during facet class sample;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is that A-A behind Fig. 1 removal loam cake 3 is to view;
Fig. 4 is the B-B cut-open view of Fig. 1;
Fig. 5 is the partial enlarged drawing of C among Fig. 1;
Fig. 6 is force transducer 8 and displacement transducer 10 the Signal Processing system that obtains and processing procedure block diagram;
The structural drawing of Fig. 7 when to be pressure head 17 with pressing head seat 20 cooperate with the face of cylinder;
Fig. 8 is in the test, when small column is interviewed sample hardness, the structural drawing of institute's lining band V-arrangement cushion block 46 on the bearing plate 30;
When Fig. 9 is test face of cylinder sample Vickers or little load Vickers hardness, the structural drawing of institute's lining band pin V-arrangement cushion block 47 on the bearing plate 30;
When Figure 10 was testing large ferromagnetism equal diameter face of cylinder sample 50 hardness, magnet base 31 lower shapes or template 49 (shown in the dotted line) bottom were the circular shape synoptic diagram;
Figure 11 is a testing large ferromagnetism not when equal diameter face of cylinder sample or polygon prism sample 52 hardness, and magnet base 31 or shape template 51 (shown in the dotted line) bottom are tubaeform synoptic diagram;
When Figure 12 is test ultra-large type ferromagnetism face of cylinder sample 54 hardness, the structural representation of added two templates 53 in magnet base 31 bottoms.
Embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
In Fig. 1～12, the pairing name of each figure number is called: 1-crossbeam, 2-column, 3-loam cake, the 4-worm gear, 5-support, 6-worm-wheel shaft, 7-force transducer seat, the 8-force transducer, 9-holding screw, 10-displacement transducer, 11-guide rail, the 12-pressing plate, 13-spreading cover, 14-backing pin, 15-pressure head lining, 16-sample, 17-pressure head, the 18-sheath, 20-pressing head seat, 21-pillar, the 22-support plate, 24-axle sleeve, 25-worm screw lower support, the supporting of 26-axle, 27-worm screw, 28-worm screw upper support, the 30-bearing plate, 31-magnet base, 32-magnetic switch, the 33-handwheel, 34-connects cover plate, and 35-locks handwheel, the 36-latch, 37, the 38-amplifier, the 39-clock driver, 40,41-sampling holding device (S/H) and mould/number (A/D) converter, 42-random-access memory (ram), 43-keyboard, the 44-microcomputer, 45-display, 46,47-V shape piece, the 48-pin, 49,51, the 53-template, 50,52, the 54-tested sample.
Fig. 1-5 and Fig. 7 are during the present invention tests, the example structure figure during facet class sample hardness.Described a kind of portable digital direct test all-purpose sclerometer, it is made up of following part: a, a cabinet rack, it is made up of with the spreading cover 13 of fixedlying connected with its lower end support 5; B, the force-closed framework that energy is fixing with frame, it comprises at least two columns 2 that are distributed in the whole frame of support of support 5 both sides, present embodiment column 2 has 4, support 5 both sides have 2 respectively, between this column 2 and the support 5 for can move and fixedlying connected of dismantling, its web member is that latch 36 (it is vee-block) is realized connecting by locking handwheel 35, fixedly connected with crossbeam 1 in column 2 upper ends, the magnet base 31 that an energy and the bearing plate 30 of tested sample or tested sample are connected with magnetic force is fixed in its lower end; C, a test force loading device that is installed in the frame, it is made up of worm screw 27, worm gear 4, worm-wheel shaft 6, force transducer seat 7, force transducer 8, pressing plate 12, pressing head seat 20, removable pressure head 17, wherein worm screw lower support 25 is fixed in the support 5, worm-wheel shaft 6 lower ends are connected with force transducer seat 7 screwed hole of centre, constitute the power transmission screw thread pair, force transducer 8 is between force transducer seat 7 and pressing plate 12, and pressure head 17 overlaps pressure head lining 15 location of 13 lower end center pits by being fixed on spreading; Described removable pressure head 17 is that this pressure head is connected with the conical surface or the face of cylinder with pressing head seat, after changing pressure head, and little load Bu Shi, Rockwell, surperficial Rockwell, Vickers and the little load Vickers hardness that can directly test all kinds of test buttons; D, a displacement of pressing head sensing device, displacement transducer 10 wherein are below worm-wheel shaft 6, and its lower end measuring head often contacts with pressure head 17 or pressing head seat 20 upper ends, and its housing is fixed in spreading cover 13 by support plate 22, pillar 21; E, as shown in Figure 6 has a sensor signal and data handling system; Further say: the fixed connecting piece between described sclerometer column 2 and the support 5 is latch 36 and locking handwheel 35, the axle of this locking handwheel 35 is connected with support 5, support 5 can be fixed on the column 2 after column 2 slides, promptly slide into behind the working position fixing with locking handwheel 35; Spreading overlaps 13 inboards and is provided with the guiding rail 11 that force transducer seat 7 and pressing plate 12 move up and down, and this guide rail has three; As Fig. 1 and Fig. 4, Fig. 5 and shown in Figure 7, three force transducers 8 are by circumference uniform distribution and be fixed on the force transducer seat 7, and pressing plate 12 usefulness screws 23 are connected with force transducer seat 7 and force transducer 8 is applied precompression; Pressure head 17 cooperates with pressing head seat 20 and has interchangeability, and cone angle is 3 °～5 ° when cooperating with circular conical surface, is transition fit when cooperating with the face of cylinder; As shown in Figure 1 and Figure 4, the housing of displacement transducer 10 is fixed in the center pit of triangular support plate 22 with holding screw 9, triangular support plate 22 places three gaps between the force transducer 8, and be fixed in spreading cover 13 by three pillars 21, the housing of displacement transducer 10 and support 5 are fixed; The measuring head of displacement transducer 10 often contacts with pressure head 17 upper surfaces, and (when pressure head 7 upper surfaces are lower than pressing head seat 20 center pit upper surfaces when dark, then measuring head contacts with pressing head seat 20 center pit coboundarys) also has preset value; The lower surface of sheath 18 is stretched out in the working end of pressure head 17; The axis of displacement transducer 10 and pressure head 17 axis coaxles; The measuring head of displacement transducer 10 can with pressure head 17 synchronously, equivalent moves, to obtain displacement transducer signal; The force-closed framework that described hardness adapts in respect of shape, size, a material with detected sample, it has following version: a, as Fig. 1, Fig. 8, shown in Figure 9, when detecting medium and small plane and face of cylinder sample, force-closed framework is made of crossbeam 1, principal post 2, magnet base 31, magnetic switch 32, bearing plate 30; B, as Figure 10 and Figure 11 solid line part illustrated embodiment, when test ferromagnetism large-scale plane sample or large-scale, ultra-large type face of cylinder sample 50,52, then substitute bearing plate 30 by described these samples, to constitute force-closed framework, at this moment, the bottom shape of magnet base 31 and tested sample surface configuration match; C, as the dotted portion of Figure 10 and Figure 11 and embodiment illustrated in fig. 12, when test ferromagnetism large-scale plane sample or large-scale, ultra-large type face of cylinder sample 50,52 or 54, then substitute bearing plate 30, to constitute force-closed framework by the corresponding template 49,51,53 that adds in addition in magnet base 31 bottoms; Switch 32 all is magnetic on the magnet base 31 of described embodiment; As Fig. 1, embodiment illustrated in fig. 8, the bottom surface of magnet base 31 is the plane, and the bearing plate 30 of tested sample is dull and stereotyped, and a center pit is arranged on it, lining is with band pin V-arrangement cushion block 46 in this hole, is used for testing, little load Bu Shi, Rockwell, the surface rockwell hardness of small column interview sample; As Fig. 2, embodiment illustrated in fig. 9, on bearing plate 30, offer two pilot holes in advance, lining is used for testing, the Vickers hardness or the little load Vickers hardness of small column sample with band pin V-arrangement cushion block 47 in this hole; In addition, be used to test medium and small plane sample, also can not perforate on the bearing plate 30; As Fig. 4, shown in Figure 6, three force transducer 8 output signals are arranged, respectively after three amplifiers 37 amplify, be converted to addition behind the digital quantity with passing to three sampling holding device S/H and analog/digital A/D converter 40 with the synchronous mode of the clock signal of clock driver 39, the result is as test power; Displacement transducer 10 output signals are after amplifier 38 amplifies, and signals sampling holding device S/H and analog/digital A/D converter 41 carry out under the synchronization of clock signals control of clock driver 39.
Below to embodiments of the present invention with use method of operating and principle of work is described more specifically as follows:
Shown in Fig. 1-5, when testing medium and small plane sample 16, magnetic switch 32 leaves, and makes magnet base 31 be adsorbed in bearing plate 30, and instrument constitutes force-closed framework by crossbeam 1, column 2, magnet base 31, magnetic switch 32, bearing plate 30; Loam cake 3 is connected with support 5 by connecting cover plate 34; Worm screw 27 usefulness upper supports 28, lower support 25 are fixed in support 5; Worm gear 4 cooperates with worm-wheel shaft 6, and worm-wheel shaft 6 is with axle supporting 26, bearing 24 orientations.Spreading cover 13 is fixedly connected on support 5, its inboard uniform three guide rails 11; Three force transducers 8 are uniform and be fixed in force transducer seat 7, and pressing plate 12 usefulness screws 23 are connected with force transducer seat 7 and force transducer 8 is applied certain precompression; The threaded portion of worm-wheel shaft 6 cooperates with force transducer seat 7 center screws, and force transducer seat 7, three uniform V-arrangement guide runners of pressing plate 12 peripheries cooperate with guide rail 11.Pressure head 17 epimeres cooperate (when cooperating with the face of cylinder, fiting property is a transition fit) with pressing head seat 20 with the circular conical surface or the face of cylinder, and have interchangeability; The lower end working portion stretches out about the sheath 18 end face 2mm that spreading overlaps 13 bottoms.Displacement transducer 10 housings are fixed in the center pit of triangular support plate 22 with holding screw 9, and triangular support plate 22 places three gaps between the force transducer 8, and are fixed in spreading cover 13 by three pillars 21; The measuring head of displacement transducer 10 often contacts (also can be and pressing head seat 20 center pit edge contact) with pressure head 17 upper surfaces, and has preset value, makes the axis and pressure head 17 axis coaxles of displacement transducer 10 simultaneously.Support 5 both sides V-type grooves cooperate with column 2, make the support 5 can upper and lower slip between the column 2 of force-closed framework, and can be fixed in column 2 with locking handwheel 35, latch 36.
During hardness test, unclamp locking handwheel 35, mobile support 5 makes sheath 18 contact samples 16, move on the pressure head 17, can make displacement transducer 10 obtain suitable, preset displacement (l among Fig. 5) for the degree of depth of measuring pressure head 17 pressing in sample 16, with locking handwheel 35, latch 36 is fixed in column 2 with support 5 then, and this moment, the reading of displacement transducer 10 was a
0Evenly apply external force continuously by handwheel 33, pressure head 17 obtains test power F, makes pressure head 17 working end pressing in sample 16.Along with the continuous increase of test power F, the reading a of displacement transducer 10
1Constantly change, the degree of depth of pressure head 17 pressing in sample 16 is h
1=a
1-a
0Dynamic h
1, F shows simultaneously in real time.When reaching setting, F stops to load.The reading of unloading back displacement transducer 10 is a
2, remaining depth of cup h=a
2-a
0H and F send microcomputer 44 to carry out data processing by test specification, online carrying out after test validity judges, obtain the hardness number of sample 16 these points and show, storage.After each specimen test finishes, data such as microcomputer 44 output hardness mean values and hardness indicating value fluctuation degree.
Referring to Fig. 5, Fig. 7.Pressure head 17 epimere fixed parts are the cone of 3 °～5 ° of one section cone angles, accurately cooperate with the conical bore of pressing head seat 20; Pressure head 17 middle part targeting parts are right cylinder, accurately cooperate with pressure head lining 15; The lower end is the measuring head part, makes the shape and size of regulation with the material of hardness test regulation and stipulation.All hardness tests of instrument, comprise little load Bu Shi, Rockwell, surperficial Rockwell, Vickers and low-load Vickers hardness test, the upper end fixed part of used pressure head 17 is consistent with shape, size, the tolerance of middle part targeting part, has interchangeability with cooperating of pressing head seat 20, pressure head lining 15.When changing the hardness test method, need under the spline effect of backing pin 14, pressure head 17 be back-outed from pressing head seat 20, be replaced with corresponding pressure head 17 after, select test method and test conditions by keyboard 43, enter the corresponding signal process system, can carry out hardness test.Pressure head 17 also can cooperate with the face of cylinder with pressing head seat 20, and should select transition fit this moment for use.
Referring to Fig. 8.When the sample hardness of the medium and small face of cylinder of test, bearing plate 30 should serve as a contrast the V-arrangement cushion block 46 that boss is arranged with the bottom, the center pit clearance fit of the boss of V-arrangement cushion block 46 and bearing plate 30.
Referring to Fig. 9.In the test, when the Vickers hardness of small column interview sample and little load Vickers hardness, can on bearing plate 30, offer two pilot holes in advance with instrument transverse axis, longitudinal axis symmetry, lining has the V-arrangement cushion block 47 of two register pins 48 with the bottom, and adjustment Vickers pressure head, two diagonal line of impression are equated with the angle of cut of sample axis, or one parallel, one vertical so that sample face of cylinder hardness number is modified to the plane hardness number.
Referring to Figure 10.Method when Figure 10 is testing large ferromagnetism equal diameter face of cylinder sample hardness and the embodiment of magnet base substructure.When testing the hardness of bigger equal diameter face of cylinder sample 50, the embodiment with tested sample 50 same diameter structures is directly made in magnet base 31 bottoms.Dotted line is the embodiment that template 49 is arranged, and template 49 replaces bearing plate 30, template 49 axis is placed with the axis of tested sample 50 is consistent, to constitute force-closed framework.
Referring to Figure 11.The testing large ferromagnetism is not during the hardness of equal diameter face of cylinder sample 52, solid line is the embodiment that flared structure is directly made in magnet base 31 bottoms, dotted line is the embodiment that template 51 is arranged below the magnet base 31, template 51 replaces bearing plate 30, sclerometer frame transverse axis is placed with the axis of tested sample 52 is consistent, to constitute force-closed framework.
Referring to Figure 12.Method when Figure 12 is test ultra-large type ferromagnetism face of cylinder sample hardness and the embodiment of magnet base 31 substructures.When the hardness of testing large face of cylinder sample 54, can add a template 53 in magnet base 31 bottoms, make the sclerometer frame laterally on the circumference of sample 54, to constitute force-closed framework.
Claims (10)
1. portable digital direct test all-purpose sclerometer is characterized in that it mainly is made up of following part: a, a cabinet rack, and it mainly is made up of with the spreading cover (13) of fixedlying connected with its lower end support (5); B, the force-closed framework that energy is fixing with frame, it comprises at least two columns (2) that are distributed in the whole frame of support of support (5) both sides, between this column (2) and the support (5) for can move and fixedlying connected of dismantling, fixedly connected with crossbeam (1) in column (2) upper end, the magnet base (31) that an energy and the bearing plate (30) of tested sample or tested sample are connected with magnetic force is fixed in its lower end; C, a test force loading device that is installed in the frame, it is mainly by worm screw (27), worm gear (4), worm-wheel shaft (6), force transducer seat (7), force transducer (8), pressing plate (12), pressing head seat (20), removable pressure head (17) is formed, wherein worm screw lower support (25) is fixed in the support (5), worm-wheel shaft (6) lower end is connected with force transducer seat (7) screwed hole of centre, constitute the power transmission screw thread pair, force transducer (8) is positioned between force transducer seat (7) and the pressing plate (12), and pressure head (17) is by pressure head lining (15) location that is fixed on spreading cover (13) lower end center pit; D, a displacement of pressing head sensing device, displacement transducer wherein (10) is in worm-wheel shaft (6) below, its lower end measuring head often contacts with pressure head (17) or pressing head seat (20) upper end, and its housing is fixed in spreading cover (13) by support plate (22), pillar (21); E, sensor signal and data handling system.
2. sclerometer according to claim 1 is characterized in that, the web member between column (2) and the support (5) is latch (36) and locking handwheel (35), and support (5) can be fixed on the column (2) after column (2) slides.
3. sclerometer according to claim 1 is characterized in that, spreading cover (13) inboard is provided with the guiding rail (11) that force transducer seat (7) and pressing plate (12) move up and down.
4. sclerometer according to claim 1, it is characterized in that, force transducer (8) has three, and by circumference uniform distribution and be fixed on the force transducer seat (7), pressing plate (12) is connected with force transducer seat (7) with screw (23) and force transducer (8) is applied precompression; Pressure head (17) cooperates with pressing head seat (20) and has interchangeability, and cone angle is 3 °～5 ° when cooperating with circular conical surface, is transition fit when cooperating with the face of cylinder.
5. sclerometer according to claim 1, it is characterized in that, displacement transducer (10) is fixed in the center pit of triangular support plate (22), triangular support plate (22) places the gap between three force transducers (8), and be fixed in spreading cover (13) by three pillars (21), make the housing of displacement transducer (10) and support (5) fixing; The measuring head of displacement transducer (10) often contacts with pressure head (17) upper surface, and has preset value; The lower surface of sheath (18) is stretched out in the working end of pressure head (17); The axis of displacement transducer (10) and pressure head (17) axis coaxle; The measuring head of displacement transducer (10) can with pressure head (17) synchronously, equivalent moves, to obtain displacement transducer signal.
6. sclerometer according to claim 1 is characterized in that, the shape of the outside surface of the bearing plate (30) of the bottom surface of magnet base (31) and tested sample matches, and switch (32) is magnetic on the magnet base (31); What constitute force-closed framework is crossbeam (1), column (2), magnet base (31), magnetic switch (32) and bearing plate (30).
7. according to claim 1 or 6 described sclerometers, it is characterized in that the bearing plate of tested sample (30) is dull and stereotyped, and a center pit is arranged on it, lining is with band pin V-arrangement cushion block (46) in this hole, is used for testing, little load Bu Shi, Rockwell, the surface rockwell hardness of small column interview sample; Or on bearing plate (30), offer two pilot holes in advance, lining is with band pin V-arrangement cushion block (47), the Vickers hardness or the little load Vickers hardness that are used to test medium and small cylinder sample in this hole; Be used to test middle-size and small-size plane sample, bearing plate (30) can be an imperforate plate.
8. according to claim 1 or 6 described sclerometers, it is characterized in that, the bearing plate of tested sample (30) is the contacted plane of a face and magnet base (31) bottom surface, the template (49,51,53) of the shaped face that another face matches for the shape with the outside surface of tested sample.
9. sclerometer according to claim 1, it is characterized in that, force transducer (8) is installed in the frame, there are three, its output signal is respectively after three amplifiers (37) amplify, be converted to addition behind the digital quantity with passing to three sampling holding devices (S/H) and mould/number (A/D) converter (40) with the synchronous mode of the clock signal of clock driver (39), the result is as test power.
10. sclerometer according to claim 1 is characterized in that, displacement transducer (10) output signal is after amplifier (38) amplifies, and signals sampling, mould/number (A/D) conversion are carried out under the clock signal synchro control of clock driver (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012621 CN1273816C (en) | 2004-01-06 | 2004-01-06 | Portable full digital direct testing universal hardness meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012621 CN1273816C (en) | 2004-01-06 | 2004-01-06 | Portable full digital direct testing universal hardness meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556387A CN1556387A (en) | 2004-12-22 |
| CN1273816C true CN1273816C (en) | 2006-09-06 |
Family
ID=34350988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410012621 Expired - Fee Related CN1273816C (en) | 2004-01-06 | 2004-01-06 | Portable full digital direct testing universal hardness meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1273816C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2738373C (en) * | 2008-09-25 | 2016-12-13 | Hong Zou | Field strength test devices and methods for installed engineered material arresting systems |
| CN102213661B (en) * | 2010-04-09 | 2016-05-25 | 吴绍明 | Universal testing machine |
| CN102589995B (en) * | 2012-02-22 | 2013-09-11 | 西南交通大学 | Method for forecasting uniaxial constitutive relation of material according to press hardness |
| CN202471531U (en) | 2012-03-13 | 2012-10-03 | 沈阳天星试验仪器有限公司 | Portable digital display hardness tester |
| CN105092399B (en) * | 2014-05-21 | 2018-02-06 | 吴绍明 | Combined type qualimeter |
| CN104596872A (en) * | 2014-12-29 | 2015-05-06 | 广州兰泰仪器有限公司 | Hardness measurement instrument for memory sponge and measurement method thereof |
| CN105021486B (en) * | 2015-07-16 | 2018-05-29 | 西安航空动力股份有限公司 | A kind of device for the calibration of metal Rockwell apparatus depth of cup measuring system |
| CN109507054A (en) * | 2017-09-15 | 2019-03-22 | 南京麒麟科学仪器集团有限公司 | Metal block surface hardness detection method |
| CN109632473A (en) * | 2019-02-01 | 2019-04-16 | 江苏方天电力技术有限公司 | A kind of tubular part hardness measurement fixture |
| CN109883862B (en) * | 2019-03-29 | 2024-04-05 | 巨石集团有限公司 | Yarn ball hardness measuring instrument and measuring method thereof |
| CN110186772A (en) * | 2019-06-13 | 2019-08-30 | 广州熙锐自动化设备有限公司 | A kind of pressure testing machine |
| CN110260771A (en) * | 2019-06-24 | 2019-09-20 | 浙江工业大学 | The installs fixture of non-contact displacement transducer suitable for Portable press fit instrument |
| CN111855452A (en) * | 2020-07-20 | 2020-10-30 | 潍坊学院 | Metal material plastic yield strength detection device |
-
2004
- 2004-01-06 CN CN 200410012621 patent/CN1273816C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1556387A (en) | 2004-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1273816C (en) | Portable full digital direct testing universal hardness meter | |
| AU2021101826A4 (en) | Micro-nano indentation testing device and method | |
| CN201110822Y (en) | Self-balance multifunctional structure static loaded experiment loading unit | |
| CN202471531U (en) | Portable digital display hardness tester | |
| CN103308405B (en) | Portable digital display hardness measuring device | |
| CN106768748B (en) | Built-in machine tool spindle axial dynamic stiffness testing device and testing method | |
| CN111982727A (en) | Double-column double-beam portable pressing-in instrument suitable for laboratory and field test | |
| CN201247040Y (en) | Measuring tool for detecting axis verticality and height simultaneously | |
| CN106644687A (en) | Small-punch and continuous indentation integrated tester system | |
| CN111024605A (en) | Stepless pressure regulating friction coefficient measuring instrument | |
| CN202486006U (en) | Portable digital display hardness measuring device | |
| CN2453428Y (en) | Digital and universal type instrument for testing hardness | |
| CN1322321C (en) | Full digital type vickers hardness scale capable of converting dial of experimental result | |
| CN2233579Y (en) | Bending stress and pressure bar stabilizing tester | |
| CN201892644U (en) | Rockwell hardness measuring apparatus of large-size casting and forging piece | |
| CN2901293Y (en) | Portable Rockwell hardness tester | |
| CN110645871A (en) | Automatic centering device and centering method for contact type measuring tape instrument sample | |
| CN211505158U (en) | Stepless pressure regulating friction coefficient measuring instrument | |
| CN112255091B (en) | Hardness meter tray for detecting thin steel plate and detection method thereof | |
| CN2323368Y (en) | Masonry mortar strength point load tester | |
| CN114993890A (en) | Particle medium contact force chain network test device | |
| CN207866291U (en) | A kind of acoustic emission test device for axial workpiece bending crack and fracture detection | |
| CN205449715U (en) | Quick detection device of panel beating intensity | |
| JP2768773B2 (en) | Hardness measuring device | |
| CN101135634A (en) | Dynamic friction coefficient measuring systems in material forming process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |