CN101881710B - Location loading material testing machine - Google Patents
Location loading material testing machine Download PDFInfo
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- CN101881710B CN101881710B CN2010101903144A CN201010190314A CN101881710B CN 101881710 B CN101881710 B CN 101881710B CN 2010101903144 A CN2010101903144 A CN 2010101903144A CN 201010190314 A CN201010190314 A CN 201010190314A CN 101881710 B CN101881710 B CN 101881710B
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Abstract
The invention relates to a location loading material testing machine which belongs to the technical field of material test. The location loading material testing machine is characterized in a location loading system; a support stand and a loading support part of the location loading system are respectively positioned at both ends of a fixing base; the loading support part comprises a location loading stand, a flange shaft, an overrunning clutch, a rolling bearing, a groove-shaped nut and two sliding blocks; three guide grooves are arranged on the location loading stand; the sliding blocks are respectively positioned in two keyways of the right external diameter of the groove-shaped nut; the overrunning clutch and the rolling bearing are fixed in the location loading stand in parallel; one end of the flange shaft is fixed by a hexagon nut through threads, and the other end is connected with the groove-shaped nut by threads; the left side of the groove-shaped nut is provided with a groove-shaped cavity; two through holes which are distributed left and right are radially arranged in the groove-shaped cavity; and the positions of the two through holes correspond to the first guide groove and the second guide groove on a loading support stand. The invention can realize a series of tension and compression tests and torsion tests by applying the guide grooves in the horizontal direction and the vertical direction of a location tension-compression-torsion loading stand.
Description
Technical field
The invention belongs to metal material experimental technique field, the Material Testing Machine that particularly provides a kind of simple in structure, multiple functional location to load.
Background technology
Along with the development of industrial technology, increasingly high to the various mechanical property requirements of material, when this just requires material accurately tested.Also improved application performance to Material Testing Machine.Strong and the detection property reliability height of simple in structure, multiple functional, rig-site utilization property becomes people Material Testing Machine is proposed new requirement.
Present existing technology has State Intellectual Property Office's Granted publication number: CN200982938Y, patent name: a kind of spring tension and compression testing machine; Granted publication number: CN200986512Y, patent name: spring tension and compression testing machine; With State Intellectual Property Office's publication number: CN101042322A, patent name: a kind of constant Loading tension-compression test machine.These technology all are to design to some specific areas and particular aspects, can only carry out independent tension and compression test, and therefore using also has certain limitation.
And the equipment that comes into operation at present mainly contains counterweight formula constant load cupping machine (or system controlled by computer material stretch test machine or universal testing machine) and proving ring (or spring assembly).The former tests accurately, but equipment is relatively more expensive and occupation of land is big, carries and lay not to be very convenient; The latter is simple in structure, price is low, be fit to bulge test, but the precision of device is low, and needs large-scale record equipment secondary load, record data, inconvenient operation automatically.
The locator material testing machine of this patent design can overcome these shortcomings, not only can carry out independent tension and compression test and twisting test, also can draw simultaneously to turn round or press and turn round composite test.Load mode is more flexible, but can load also manual loading automatically, and record data bring great convenience to data processing automatically.
Summary of the invention
The object of the present invention is to provide a kind of multifunctional material testing machine that loads through the location; Solved shortcomings such as the expensive of equipment operation and maintenance in the past, floor area are big, the present invention realizes that a kind of enable manual loads also can load automatically simple in structure, floor area is little (about 60 * 30 * 25), gather automatically and the multi-functional locator material testing machine of record data.
This device is made up of control system, detection system, location loading system (twisting tension and compression) three parts.
Control system is to pass through software systems controlled motion control card by industrial computer, makes fortune power control fabrication drive stepping motor and rotates drive flange shaft realization motion control behind shaft coupling.
Detection system is made up of STSS-1 ess-strain module, load sensor, GGD19-LVDT displacement transducer; Obtain the ess-strain signal through the sensor that loads the position during location test, load sensor sends the ess-strain signal to STSS-1 ess-strain module then; Obtain displacement signal through the GGD19-LVDT displacement transducer, realize that the location detects the variation of ess-strain in real time.
The location loading system is made up of firm banking, support pedestal and loading support section, and support pedestal and loading support section lay respectively at the two ends of firm banking.The support pedestal top is provided with trip bolt, and effect is that test specimen is applied fixing hinged location, and the support pedestal top is provided with pin-and-hole, is used for fixing test specimen; Loading support section is made up of location loading support, flange shaft, overrunning clutch, rolling bearing, grooved nut and two slide blocks.The location loads support and is fixed on the firm banking; The location loads on the support has three gathering sills; First gathering sill is that the vertical degree of freedom of restriction realizes the tension and compression effect; Second gathering sill is that the limit levels degree of freedom realizes twisting action, and the effect of the 3rd gathering sill is the move left and right of regulating the slide block in the channel nut keyway through the 3rd gathering sill.Two slide blocks lay respectively in two keyways of channel nut right part external diameter, and overrunning clutch and rolling bearing are fixed on the location side by side and load the support the inside, and wherein overrunning clutch is positioned at the outside of rolling bearing.The flange shaft two ends are threaded; Left end shaft shoulder place has two and the corresponding keyway of channel nut keyway; After in slide block moves to the flange shaft keyway, channel nut is rotated with flange shaft, flange shaft one end is fixed with hexagonal nut through screw thread; The other end is connected with channel nut through screw thread, and the hexagonal nut of flange shaft through overrunning clutch, rolling bearing and end fixed locating loading support circular cavity centerline.Grooved nut right side becomes thread connection with flange shaft, and the left side is the flute profile cavity, on the flute profile cavity, radially is distributed with two through holes, and the position of through hole is corresponding with first and second gathering sills on loading support pedestal on two.In tension and compression when test, put into grooved nut cavity with test specimen, passes on first gathering sill on the location loading support, the grooved nut and corresponding through hole of first gathering sill and test specimen with second straight pin.Control system drives the stepping motor rotation and behind shaft coupling, drives the flange shaft rotation, and flange shaft and grooved nut form the screw thread motion, promptly converts the location tension and compression load test of the rectilinear motion realization of grooved nut to test specimen to by rotatablely moving of flange shaft.Pass the location with the three cylindrical pin and load through hole and the test specimen corresponding on second gathering sill on the support, the grooved nut with second gathering sill.After two slide blocks move in the flange shaft keyway, circumferentially fixing flange shaft and grooved nut, make flange shaft and channel nut not have relative motion, one common peripheral loads the rotation of support circular cavity center line around the location, realize the location twisting test to test specimen.
The present invention has compared advantage with existing Material Testing Machine:
1, testing machine simple in structure, take up room little, equipment principle is simply clear, compact equipment, cost performance is high.
2, creationaryly realized the location test of Material Testing Machine, both can manual loading also can load automatically, taked and record data the accuracy of the data of mentioning greatly automatically test specimen.Solved the irrealizable problem of existing testing machine.
The level on the utilization location twisting tension and compression loading support of 3, the invention property and the gathering sill of vertical both direction can be realized a series of tension and compression test and twisting test.
Description of drawings
The structured flowchart and the description of drawings of specific embodiment of the present invention are following:
Fig. 1 Material Testing Machine one-piece construction figure
Fig. 2 locatees loading system (cross sectional plan view)
Fig. 3 locatees and loads support (outward appearance front view)
Fig. 4 flange shaft front view
Fig. 5 flange shaft side view
1, industrial computer; 2, motion control card; 3, stepping motor; 4, STSS-1 ess-strain module; 5, shaft coupling; 6, overrunning clutch; 7, rolling bearing; 8, grooved nut; 9, the location loads support; 10, GGD19-LVDT stretching displacement sensor; 11, GGD19-LVDT torsional displacement sensor; 12, first load sensor; 13, second load sensor; 14, trip bolt; 15, parallels; 16, support pedestal; 17, firm banking; 18, first straight pin; 19, test specimen; 20, second straight pin; 21, three cylindrical pin; 22, screw; 23, slide block (2); 24, hexagonal nut; 25, flange shaft; 26, manual loading rod.27, first gathering sill; 28, second gathering sill; 29, the 3rd gathering sill.
Specific embodiments
Said the present invention locatees loading system (cross sectional plan view), Fig. 3 by Fig. 1 Material Testing Machine one-piece construction figure, Fig. 2 and locatees and load support (outward appearance front view), Fig. 4 flange shaft front view and Fig. 5 flange shaft side view and form.Its load mode is divided into automatic control loaded and two kinds of manual control loaded.
The concrete function implementation of proprietary material testing machine of the present invention is following:
One, control system: pass through the required realization parameter value of input on the corresponding program interface of industrial computer 1 when loading automatically; Send control signal by software to motion control card 2 then; 3 rotations of motion control card 2 processing control information rear drive stepping motors, stepping motor 3 drives flange shaft 25 through shaft coupling 5 and rotates, and realizes loading automatically; Directly decide manual loading rod 26 during manual loading and drive flange shaft 25 rotations, realize manual loading with the manpower rotation.
Two, detection system: the concrete implementation of detection system is made up of GGD19-LVDT stretching displacement sensor 10, GGD19-LVDT torsional displacement sensor 11, STSS-1 ess-strain module 4, first load sensor 12, second load sensor 13; Can obtain the ess-strain signals through first load sensor 12, second load sensor 13 during loading; First load sensor 12, second load sensor 13 send the ess-strain signal to STSS-1 ess-strain module 5 then, and the ess-strain module by signal is handled ess-strain is realized demonstrating in real time in the back on industrial computer 1 variation.GGD19-LVDT stretching displacement sensor 10, GGD19-LVDT torsional displacement sensor 11 can detect the test specimen change in displacement after the loading, send signal to industrial computer 1 and realize showing in real time change in displacement.
Three, the location loads system: during the tension and compression test, grooved nut 8 moves forward and backward through driving grooved nut 8 with being threaded of grooved nut 8 with flange shaft 25, realizes the tension and compression to test specimen 19.Load test specimen 19, grooved nut 8, location support 9 and connect together through second gathering sill 28 with three cylindrical pin 21.The other end of test specimen 19 is placed on the support pedestal 16, passes through fixedly test specimen 19 of pin-and-hole with first straight pin 18, limits the degree of freedom of test specimens 19 simultaneously with fastening bolt 14 extruding parallels 15.When flange shaft 25 is rotated, move forward and backward, realize tension and compression test test specimen because the axial restraint effect of hexagonal nut 24 makes flange shaft 25 drive grooved nut 8.It has utilized the irreversible characteristic of overrunning clutch, realizes keeping the constant of loaded load in the process of the test.
During twisting test; After in slide block 23 moves to the flange shaft keyway, channel nut 8 is rotated with flange shaft 25, the rotation of flange shaft 25 drives grooved nut 8 and rotates; And connect together an end of test specimen 19 and grooved nut 8 through first gathering sill 27 with second straight pin 20; The other end of test specimen 19 is placed on the support pedestal 16, passes through fixedly test specimen 19 of pin-and-hole with first straight pin 18, limits the degree of freedom of test specimens 19 simultaneously with fastening bolt 14 extruding parallels 15.Flange shaft 25 drives test specimen 19 through grooved nut 8 and rotates, and realizes reversing test specimen.Because the restriction of overrunning clutch 6 makes flange shaft 25 unidirectionally to rotate, the backward rotation of flange shaft 25 when preventing to carry out twisting test realizes the twisting test to test specimen.It has utilized the irreversible characteristic of overrunning clutch, realizes keeping the constant of loaded load in the process of the test.
More than if experiment drives grooved nuts 8 motion together will realize manual loading the time as long as rotation manual loading bar 26 drives flange shaft 25, can realize special tests such as a series of twisting tension and compression.
Claims (3)
1. a location loading material testing machine is made up of control system, detection system, location loading system three parts; Control system is to pass through software systems controlled motion control card (2) by industrial computer (1), makes motion control card (2) drive stepping motor (3) and rotates drive flange shaft (25) realization motion control behind shaft coupling (5); Detection system is made up of STSS-1 ess-strain module (4), GGD19-LVDT stretching displacement sensor (10), GGD19-LVDT torsional displacement sensor (11), first load sensor (12), second load sensor (13); Obtain the ess-strain signal through the sensor that loads the position during location test, send first load sensor (12), second load sensor (13) ess-strain signal to STSS-1 ess-strain module (4) then; Obtain displacement signal through GGD19-LVDT displacement transducer (10), realize that the location detects the variation of ess-strain in real time; It is characterized in that: the location loading system is made up of firm banking (17), support pedestal (16) and loading support section (I), and support pedestal (16) and loading support section (I) lay respectively at the two ends of firm banking (17); Support pedestal (16) top is provided with trip bolt (14), and effect is that test specimen (19) is applied fixing hinged location, and support pedestal (16) middle part is provided with pin-and-hole, is used for fixing test specimen (19); Loading support section (I) is made up of location loading support (9), flange shaft (25), overrunning clutch (6), rolling bearing (7), grooved nut (8) and two slide blocks (23); The location loads support (9) and is fixed on the firm banking (17); The location loads on the support (9) has three gathering sills; First gathering sill (27) is that the vertical degree of freedom of restriction realizes the tension and compression effect; Second gathering sill (28) is that the limit levels degree of freedom realizes twisting action, and the 3rd gathering sill (29) effect is the move left and right through the 3rd gathering sill (29) regulating tank inner slide (23); Overrunning clutch (6) and rolling bearing (7) are fixed on the location side by side and load support (9) the inside; Wherein overrunning clutch (6) is positioned at the outside of rolling bearing (7); Flange shaft (25) two ends are threaded; Left end shaft shoulder place has two and the corresponding keyway of channel nut (8) keyway; After in slide block (23) moves to flange shaft (25) keyway, channel nut (8) and flange shaft (25) circumferentially are fixed together and rotate, flange shaft (25) one ends are fixed with hexagonal nut (24) through screw thread; The other end is connected with channel nut (8) through screw thread, and the hexagonal nut (24) of flange shaft (25) through overrunning clutch (6), rolling bearing (7) and end fixed locating loading support (9) circular cavity centerline; It is the flute profile cavity that grooved nut (8) right side becomes thread connection, left side with flange shaft (25), on the flute profile cavity, radially is distributed with two through holes, and the position of two through holes is corresponding with first gathering sill (27) and second gathering sill (28) on loading support pedestal.
2. a kind of location loading material testing machine as claimed in claim 1 is characterized in that: flange shaft (25) is that the centre of gyration rotates with rolling bearing (7) and overrunning clutch (6) in the loading system of said location; The location loading system is utilized the irreversible characteristic of overrunning clutch (6), realizes keeping in the process of the test the constant of loaded load.
3. the method for application of location loading material testing machine as claimed in claim 1; It is characterized in that: during the tension and compression test; Test specimen (19) is put into grooved nut (8) cavity, go up and corresponding through hole of first gathering sill (27) and test specimen (19) with first gathering sill (27), grooved nut (8) that second straight pin (20) passes on the location loading support (9); Control system drives stepping motor (3) and rotates drive flange shaft (25) rotation behind shaft coupling (5); Flange shaft (25) forms the screw thread motion with grooved nut (8), promptly converts the location tension and compression load test of the rectilinear motion realization of grooved nut (8) to test specimen (19) to by rotatablely moving of flange shaft (25); During twisting test, go up and corresponding through hole of second gathering sill (28) and test specimen with second gathering sill (28), grooved nut (8) that three cylindrical pin (21) passes on the location loading support (9); After in two slide blocks (23) move to flange shaft (25) keyway; Circumferentially fixing flange shaft (25) and grooved nut (8); Make flange shaft (25) and the no relative motion of channel nut (8); One common peripheral loads the rotation of support (9) circular cavity center line around the location, realize the location twisting test to test specimen (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101903144A CN101881710B (en) | 2010-06-02 | 2010-06-02 | Location loading material testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101903144A CN101881710B (en) | 2010-06-02 | 2010-06-02 | Location loading material testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101881710A CN101881710A (en) | 2010-11-10 |
| CN101881710B true CN101881710B (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101903144A Expired - Fee Related CN101881710B (en) | 2010-06-02 | 2010-06-02 | Location loading material testing machine |
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| CN (1) | CN101881710B (en) |
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Granted publication date: 20121107 Termination date: 20130602 |