CN2054536U - Multipurpose extending gauge - Google Patents
Multipurpose extending gauge Download PDFInfo
- Publication number
- CN2054536U CN2054536U CN 89204920 CN89204920U CN2054536U CN 2054536 U CN2054536 U CN 2054536U CN 89204920 CN89204920 CN 89204920 CN 89204920 U CN89204920 U CN 89204920U CN 2054536 U CN2054536 U CN 2054536U
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- utility
- model
- elastic
- gauge
- extensometer
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Abstract
The utility model provides a multipurpose extending gauge used for measuring the mechanical property of material, a special positioning gauge is used for positioning, and two pairs of finials and elastic arms are used for clamping test samples. The utility model can automatically average different kinds of deformation of two symmetrical sets of measuring points at the two measuring surfaces of the test sample. The utility model which is installed on the test samples has the characteristics of stable clamping, high dithering resistant ability, high precision, etc. The utility model can be used for various test samples in plate shapes, in band shapes, in circular shapes, in abnormal shapes, etc. The utility model is a novel extending gauge which can accurately measure 'defined disproportionate extending stress', 'defined remanent extending stress', 'yield points', 'elastic modulus', etc. according to an 'GB228-87 tensile test method' and an international standard 'ISO6892 metal material tension test method'.
Description
The utility model relates to the technical field of measuring the metal material mechanics performance, and it is applied in a kind of new multi-purpose extensometer of the regulation disproportional elongation stress that can measure metal material on the Material Testing Machine exactly, predetermined residual elongating stress, yield point, elastic modulus etc.
Existing extensometer generally all adopts knife edge type, with rubber band or carbine extensometer is installed in a side of sample, and such mounting means bearing accuracy is poor, can only record the stretch value of this side of sample, owing to do not have accurate in locating device, gauge length L
0Be difficult for guaranteeing.Just may change zero point when sample has slight jitter, when the grip of testing machine concentricity is relatively poor (particularly old-fashioned testing machine), in the stressed incipient stage, on one side certain of sample has compression deformation, make the recording curve The initial segment linear poor, even the record elongation is the phenomenon of negative value." inductance type extensometer " reaches " the dual-purpose extensometer of ball-and-socket hinge style mechano-electronic " then shortcomings such as weight is big, the adaptation sample type is few, price is expensive.
Task of the present utility model provides the versatile extensometer of a kind of energy.It is located with special set gauge, can stablize, promptly be clamped on plate, band, garden and the special-shaped multiple sample, the various mechanical property parameters of measuring with it, satisfy GB " GB228-87 " and international standard " ISO6892 " comprehensively and measure the requirement of the various mechanical properties of metal material, can reach GB " B " level by the extensometer classification.
The utility model is achieved in that it is made up of plug, lead, elastic beam, strainometer, coupling block, it is characterized in that on coupling block, being equipped with two pairs of elastic arms, the bending stiffness of elastic arm should be 2～5 times of elastic beam bending stiffness, the rounded nose center of elastic arm is equipped with top, circular hole is occupied at middle part at elastic arm, screw passes the circular hole of elastic arm, the knurled nut is spun on the screw, packing ring is equipped with in the connection place of coupling block and elastic beam, coupling block can be used screw with connecting of elastic beam, also can use cementing agent.The utility model is the elastic beam of lengthening resistance-type bow type extensometer, to increase the linearity, the test arm part and the edge of a knife with former usefulness, change elastic arm and four top into, the bending stiffness of elastic arm should be 2～5 times of elastic beam, elastic beam and elastic arm are fixed tightly on the coupling block with screw, and the rounded nose center of elastic arm is equipped with top, and top employing wringing fit mode is pressed on the elastic arm.The connection place of coupling block and elastic beam is provided with packing ring, and coupling block can be used screw with connecting of elastic beam, also can use cementing agent.The multi-usage extensometer carries out resilient clamp by elastic arm rounded nose center top and the screw and the knurled nut that pass the elastic arm middle part to sample.With special-purpose set gauge location, the multi-usage extensometer is installed on the sample during clamping, can guarantees the axle center of four top definite planes like this, and can guarantee original gauge length L by sample
0Precision reach the B level.
This by plug, lead, elastic beam, strainometer, the multi-usage extensometer that coupling block is formed, it is characterized in that having Baltimore groove on the special-purpose set gauge, two seamed edges of groove are parallel to each other, two seamed edges of groove also should be parallel to the elastic arm rounded nose near horizontal plane, the front elevation of special-purpose set gauge is a convex shape, two planes on its step should be orthogonal, sample is placed in the Baltimore groove, two seamed edge location by Baltimore groove, milled screw with the Baltimore groove opposite holds out against sample, the rounded nose of multi-usage extensometer abuts against on two steps of boss, sample be placed on two couple of elastic arm top between, at this moment screw the knurled nut on the elastic arm, toply just can clamp sample, unscrew the milled screw on special-purpose set gauge Baltimore groove opposite, be folded down special-purpose set gauge.
When sample stretches, because the multi-usage extensometer is by elastic arm sample to be carried out resilient clamp, the elongation of two of the rounded nose center groups of top two groups of measuring points in two symmetrical sides of can materialsing respectively on the elastic arm, by relatively rotating between the elastic arm, pass to the strainometer that is attached on the elastic beam with the axle center stretch value and become electric signal output by strainometer.
The elastic beam two ends connect with coupling block, and the rectangle special washer of necessary employing and connection place, coupling block end consistent size tightens up the linearity that could guarantee its transmission with screw with it, perhaps adopts bonding technology, and elastic beam and coupling block are entirely cemented.
The utility model is compared with extensometer commonly used, multi-usage extensometer one plays the effect that knife edge type extensometer symmetry is installed two mean values of materialsing only, and weight ratio inductance type extensometer is light more than one times, gently manys times than the dual-purpose extensometer of ball-and-socket hinge style mechano-electronic, because the utility model is reasonable in design, adopt long elastic beam, compact conformation, the bulk-breaking combination is easy to manufacture, and cost is low, install with special-purpose set gauge, make original gauge length L
0Clamping is accurate, and is easy for installation, and by the extensometer stage division of GB GB228-87 regulation, the utility model can reach the requirement of B level.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is power-deformation curve synoptic diagram that the utility model is drawn;
Fig. 2 is power-deformation curve synoptic diagram that existing extensometer is drawn;
Fig. 3 is the front elevation of the utility model assembling synoptic diagram;
Fig. 4 is the vertical view of the utility model assembling synoptic diagram;
Fig. 5 is that the utility model removes two pairs of top synoptic diagram that are clamped on the sample behind the special-purpose set gauge;
Fig. 6 is the synoptic diagram of the special-purpose set gauge front view of the utility model;
Fig. 7 is the synoptic diagram of the special-purpose set gauge side view of the utility model.
When using the utility model to make tensile test, testing machine, sample, secondary instrument and preliminary work are joined by institute, identical with extensometer requirement commonly used now, when on the sample that preliminary work is finished, the utility model being installed, be positioned on the middle part of sample to be tested earlier with special-purpose set gauge (10), sample (9) is stuck in the little square groove of set gauge (10), screw screw (13) and withstand sample, again the cylindrical of the rounded nose of two pairs of elastic arms (8) is abutted against on the face position, right angle of set gauge (10), screw two knurled nuts (12) on the elastic arm (8), two pairs top (11) then stably clamp sample (9), unload set gauge (10) this moment, then can continue operation, can write down out the full GB228-87 tensile test of symbol method and measure the required curve of various performances by the using method of former similar extensometer commonly used.
Specify structure situation of the present utility model with reference to Fig. 3 and Fig. 4:
Elastic beam (6) and elastic arm (8) all the same alloy material of the persevering elastic performance of apparatus are made, the bending stiffness of elastic arm (8) is 3 times of elastic beam (6) bending stiffness, the alloy material of the persevering elastic performance of elastic beam (6) apparatus is made rectangle, the thickness of material is 1 millimeter, two ends at it are drilled with mounting hole, coupling block (7) is made pane shape with aluminum alloy materials, two sides at it are drilled with the screw that connects with elastic arm (8), are drilled with the screw that connects with elastic beam (6) at its middle part of opposite side.The alloy material of the persevering elastic performance of elastic arm (8) apparatus is made, the thickness of material is 1 millimeter, its end is made rounded nose, the center of rounded nose is drilled with the hole that top (11) are installed, the other end of elastic arm (8) is done two mounting holes that are connected with coupling block (7), the middle part of elastic arm is drilled with a hole that is connected with screw rod (14), and screw rod (14) passes the hole, and knurled nut (12) is contained on the screw rod (14).Make with alloy tool steel top (11), its end is done coning, the other end makes cylindrical, the hole wringing fit at the diameter of cylinder and elastic arm (8) rounded nose center is fitted together, plug (1) is connected with special-purpose amplifier with lead (2), other screws can be selected standard component for use, the persevering flexible steel of square washer (3) apparatus are made, the termination consistent size of its size and coupling block (7), be drilled with a hole in its centre, be convenient to be pressed together with screw and coupling block (7) and elastic beam (6), also can use cementing agent, elastic beam (6) and coupling block (7) are bonded together, and the shell of multi-usage extensometer (4) rectangle box-like made of plastic is fastened on coupling block (7) with screw and upward gets final product.
It changes special-purpose set gauge (10) according to the shape and size of tested sample, be the example explanation with the survey circular specimen below: special-purpose set gauge (10) is made with the little tool steel material of distortion, with reference to Fig. 6 and Fig. 7 its structure is specifically described, its front elevation is " protruding " font, two step surfaces (F) and face (E) should be orthogonal, two seamed edges of groove (D) should be parallel to face (F), and size (A) is according to original gauge length L
0Determine, size (C) should be half of elastic arm (8) rounded nose diameter, the size of groove (D) should be about 1/4th of a tested sample diameter, there is screw on opposite at groove (D), milled screw (13) is housed in the screw, holds out against sample with it, the side of set gauge (10) is " recessed " font, the size of groove (B) should be greater than the diameter of tested sample, and the sample that can conveniently be installed is advisable.
Claims (3)
1, a kind of by plug (1), lead (2), elastic beam (6), strainometer (5), the multi-usage extensometer that coupling block (7) is formed, it is characterized in that on coupling block (7), being equipped with two pairs of elastic arms (8), the bending stiffness of elastic arm (8) should be 2～5 times of elastic beam (6) bending stiffness, in the rounded nose center of elastic arm (8) top (11) are housed, circular hole is occupied at middle part at elastic arm (8), screw (14) passes the circular hole of elastic arm (8), knurled nut (12) is spun on the screw (14), and coupling block (7) is equipped with packing ring (3) with the connection place of elastic beam (6).
2,, it is characterized in that adopting rectangle packing ring (3) and screw that elastic beam (6) is pressed on the coupling block (7) according to the multi-usage extensometer of claim 1.
3,, it is characterized in that coupling block (7) and connecting of elastic beam (6) can using cementing agent according to the multi-usage extensometer of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89204920 CN2054536U (en) | 1989-05-04 | 1989-05-04 | Multipurpose extending gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89204920 CN2054536U (en) | 1989-05-04 | 1989-05-04 | Multipurpose extending gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2054536U true CN2054536U (en) | 1990-03-14 |
Family
ID=4862160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89204920 Withdrawn CN2054536U (en) | 1989-05-04 | 1989-05-04 | Multipurpose extending gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2054536U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487415C (en) * | 2004-11-22 | 2009-05-13 | 中国科学院理化技术研究所 | Method for measuring polymer-base foam material elastic modulus by displacement sensor |
| CN102506688A (en) * | 2011-10-24 | 2012-06-20 | 浙江大学 | Resistance strain thickness measuring device and measurement method thereof |
| CN105737790A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Device for measuring test hole compression deformation |
| CN108956281A (en) * | 2018-06-04 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of fixation device of sheet metal drawing by high temperature extensometer |
-
1989
- 1989-05-04 CN CN 89204920 patent/CN2054536U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487415C (en) * | 2004-11-22 | 2009-05-13 | 中国科学院理化技术研究所 | Method for measuring polymer-base foam material elastic modulus by displacement sensor |
| CN102506688A (en) * | 2011-10-24 | 2012-06-20 | 浙江大学 | Resistance strain thickness measuring device and measurement method thereof |
| CN105737790A (en) * | 2014-12-10 | 2016-07-06 | 中国飞机强度研究所 | Device for measuring test hole compression deformation |
| CN105737790B (en) * | 2014-12-10 | 2018-12-14 | 中国飞机强度研究所 | A kind of device being squeezed and deformed for measured hole |
| CN108956281A (en) * | 2018-06-04 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of fixation device of sheet metal drawing by high temperature extensometer |
| CN108956281B (en) * | 2018-06-04 | 2021-02-09 | 中国航发北京航空材料研究院 | Fixing device of sheet metal high temperature tensile extensometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |