CN211347673U - Large deformation measuring device of single photoelectric encoder - Google Patents
Large deformation measuring device of single photoelectric encoder Download PDFInfo
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- CN211347673U CN211347673U CN201922228931.8U CN201922228931U CN211347673U CN 211347673 U CN211347673 U CN 211347673U CN 201922228931 U CN201922228931 U CN 201922228931U CN 211347673 U CN211347673 U CN 211347673U
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Abstract
The utility model discloses a big measuring device that warp of single photoelectric encoder, which comprises a bracket, install the photoelectric encoder device on the support, be located two transmission of photoelectric encoder device both sides, be located the balancing unit of photoelectric encoder device below, be located two first chucks of transmission below, install drive arrangement and cotton rope in support one side, cotton rope and first chuck, transmission, balancing unit and photoelectric encoder device connect gradually, the both sides of sample are got respectively to two first chucks, drive arrangement can drive the sample and make progress tensile deformation in order to drive the photoelectric encoder device and rotate, the photoelectric encoder device can read the tensile length of sample. The utility model discloses an adopt single photoelectric encoder to replace two photoelectric encoders, turn into the displacement volume of two gauge length lines single photoelectric encoder's positive negative corner, directly obtain the increment of sample gauge length, saved equipment cost, improved measurement accuracy.
Description
Technical Field
The utility model relates to an elongation detects technical field, concretely relates to big deformation measuring device of single photoelectric encoder.
Background
The mechanical property of the material is an important factor influencing the functional characteristics of the material, the elongation is an important parameter for measuring the performance of the metal material, the elongation is the ratio of the total deformation of a gauge length section after a sample is stretched and broken to the original gauge length, according to the requirements of the relevant national standard of a tensile test, the tensile sample needs to be processed into a dumbbell-shaped cylindrical part, large-diameter sections at two ends are stretching clamping parts, and a small-diameter section in the middle is an extension part, in the prior art, the general measuring method is to utilize two photoelectric encoders to respectively track the displacement of two gauge length lines of the sample, calculate the increment of the gauge length of the sample through computer processing, finally obtain the elongation of the material by using the ratio of the increment to the gauge length, because the prior art mainly adopts the double photoelectric encoders to measure, the manufacturing cost of equipment is high, the computer needs to combine the numerical values of the two photoelectric encoders to operate, the, and the use of two photoelectric encoders easily increases the system error, resulting in low measurement accuracy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single photoelectric encoder large deformation measuring device adopts single photoelectric encoder to replace two photoelectric encoders, saves the cost, improves measurement accuracy.
To achieve the purpose, the utility model adopts the following technical proposal:
the large deformation measuring device comprises a support, a photoelectric encoder device arranged on the support, two transmission devices positioned on two sides of the photoelectric encoder device, a balancing device positioned below the photoelectric encoder device, two first chucks positioned below the transmission devices, a driving device arranged on one side of the support and a wire rope, wherein the wire rope is sequentially connected with the first chucks, the transmission devices, the balancing device and the photoelectric encoder device, the two first chucks respectively clamp two sides of a sample, the driving device can drive the sample to stretch and deform upwards to drive the photoelectric encoder device to rotate, and the photoelectric encoder device can read the stretching length of the sample.
As a preferable scheme of the single photoelectric encoder large deformation measuring device, the photoelectric encoder device comprises a first fixed pulley mounted on the bracket and a photoelectric encoder connected with the first fixed pulley, and the first fixed pulley is connected with the balancing device through the wire rope.
As a preferable scheme of the large deformation measuring device of the single photoelectric encoder, the transmission device comprises two second fixed pulleys, the two second fixed pulleys are arranged at intervals, and the wire rope is sequentially connected with the first chuck, the two second fixed pulleys and the balancing device.
As a preferable scheme of the large deformation measuring device of the single photoelectric encoder, the balancing device comprises a balancing block, a mounting seat and two movable pulleys, wherein the mounting seat is mounted on the balancing block and is provided with a groove, the two movable pulleys are mounted in the groove at intervals and coaxially, and the first fixed pulley is sequentially connected with the movable pulley and the second fixed pulley through the cord.
As a preferable mode of the large deformation measuring device with the single photoelectric encoder, the balancing device is the same as the total weight of the two first chucks and the sample.
As a preferable scheme of the large deformation measuring device with the single photoelectric encoder, the driving device comprises a tensile testing machine positioned on one side of the bracket and two second chucks arranged on the tensile testing machine, one of the second chucks clamps the lower part of the sample to fix the sample, and the tensile testing machine can drive the other second chuck to clamp and upwards stretch the sample.
As a preferable scheme of the large deformation measuring device with the single photoelectric encoder, the first chuck comprises a first clamping block, a second clamping block and a spring for connecting the first clamping block and the second clamping block, and when the spring is in a relaxed state, the first clamping block is in plug-in fit with the second clamping block.
As a preferred scheme of the large deformation measuring device of the single photoelectric encoder, the support comprises a base, a sliding rod arranged on the base and two sliding blocks in sliding fit with the sliding rod, the two first chucks are fixedly connected with the two sliding blocks respectively, and the first chucks can slide along the length direction of the sliding rod.
As a preferred scheme of the large deformation measuring device with the single photoelectric encoder, the large deformation measuring device further comprises a protective cover, wherein the protective cover is arranged above the support, and the photoelectric encoder and the second fixed pulley are located in the protective cover.
The utility model has the advantages that: the utility model discloses an improve the structure of assembly pulley, adopt single photoelectric encoder to replace two photoelectric encoders, turn into the positive negative corner of single photoelectric encoder with the displacement volume of two gauge length lines, direct stack or the double wave disappears on photoelectric encoder, directly obtain the increment of sample gauge length, reached two photoelectric encoder's measuring effect, saved equipment cost, improved measurement accuracy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a side view of a single photoelectric encoder large deformation measuring device according to an embodiment of the present invention.
Fig. 2 is a front view of a single photoelectric encoder large deformation measuring device according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a single photoelectric encoder large deformation measuring device according to an embodiment of the present invention.
In fig. 1 to 3:
1. a support; 11. a base; 12. a slide bar; 13. a slider;
2. a photoelectric encoder device; 21. a first fixed pulley; 22. a photoelectric encoder;
3. a transmission device;
4. a balancing device; 41. a counterbalance; 42. a mounting seat; 43. a movable pulley;
5. a first chuck; 51. a first clamping block; 52. a second clamp block; 53. a spring;
6. a cord; 7. a shield.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, the embodiment of the utility model provides a big measuring device that warp of single photoelectric encoder includes support 1, install photoelectric encoder device 2 on support 1, be located two transmission 3 of 2 both sides of photoelectric encoder device, be located balancing unit 4 of 2 below of photoelectric encoder device, be located two first chucks 5 of transmission 3 below, install drive arrangement and cotton rope 6 in support 1 one side, cotton rope 6 and first chuck 5, transmission 3, balancing unit 4 and photoelectric encoder device 2 connect gradually, the both sides of sample are got respectively to two first chucks 5, drive arrangement can drive the sample and upwards tensile deformation rotates in order to drive photoelectric encoder device 2, photoelectric encoder device 2 can read the tensile length of sample.
In the embodiment, by improving the structure of the pulley block, the single photoelectric encoder device 2 is adopted to replace the double photoelectric encoder device 2, the two first chucks 5 respectively clamp the upper side and the lower side of the middle part of the sample and the marked line, the driving device fixes the lower end of the sample and simultaneously clamps the upper end of the sample to apply an upward pulling force, the sample deforms and stretches upwards, the two first chucks 5 rise along with the stretching of the sample, the transmission device 3 in transmission connection with the two first chucks 5, the photoelectric encoder device 2 and the balancing device 4 rotate simultaneously, the displacement of the two first chucks 5 is different due to the upward stretching of the sample, the displacement of the two first chucks 5 is transmitted to the photoelectric encoder device 2 through the transmission device 3, the displacement of the two first chucks 5 is converted into positive and negative rotation angles of the photoelectric encoder device 2, and is directly superposed or cancelled on the photoelectric encoder device 2, therefore, the increment of the sample gauge length is directly obtained, the measuring effect of the double-photoelectric encoder device 2 is achieved, the equipment cost is saved, and the measuring precision is improved.
As a preferred embodiment of the present invention, the photoelectric encoder device 2 includes a first fixed pulley 21 installed on the support 1 and a photoelectric encoder 22 connected to the first fixed pulley 21, and the first fixed pulley 21 is connected to the balancing device 4 through a cord 6. The optical-electrical encoder 22 in this embodiment is an ESG38S solid-axis incremental encoder, the ESG38S solid-axis incremental encoder can convert displacement into a periodic electrical signal, and then convert the electrical signal into a counting pulse, and the position of the counting pulse is known by a counting device, the ESG38S solid-axis incremental encoder is characterized in that each time an output pulse signal is generated, an incremental displacement corresponds to one incremental displacement, and it can generate a pulse signal equivalent to the displacement increment, and its function is to provide a sensing method for discretization or increment of continuous displacement amount and displacement change, which is a relative position increment with respect to a certain reference point, that is, the optical-electrical encoder 22 can accurately measure the rotation speed, rotation angle and displacement of the first fixed pulley 21.
In this embodiment, the transmission device 3 includes two second fixed pulleys, the two second fixed pulleys are arranged at intervals, and the wire rope 6 is connected with the first chuck 5, the two second fixed pulleys and the balancing device 4 in sequence. The second fixed pulley in this embodiment functions as a connection conductor for connecting the first jaw 5 and the balancing device 4.
In this embodiment, the balancing device 4 includes a balance weight 41, a mounting seat 42 mounted on the balance weight 41, and two movable pulleys 43, the mounting seat 42 is provided with a groove, the two movable pulleys 43 are coaxially mounted in the groove at intervals, and the first fixed pulley 21 is sequentially connected with the movable pulley 43 and the second fixed pulley through a cord 6. The wire 6 in this embodiment is first connected to one of the first chucks 5, then the wire 6 is connected to the first fixed pulley 21 after passing around two second fixed pulleys and one movable pulley 43 adjacent to the first chuck 5 in turn, the wire 6 is connected to the other movable pulley 43 and the other two second fixed pulleys after passing around the first fixed pulley 21 in turn, and the wire 6 is connected to the other first chuck 5 after passing around the second fixed pulley.
In the present embodiment, the balance device 4 is the same as the two first chucks 5 and the total weight of the sample. The balance device 4 in this embodiment plays a balance role, and by adjusting the weight of the balance weight 41, the balance device 4 can counteract the weight of the two first chucks 5 and the sample to ensure that the sample on the first chuck 5 is in a static state under the condition of no external force driving, because the total weight of the balance device 4, the two first chucks 5 and the sample is the same, when the driving device is not in operation, the balance device 4 and the first chuck 5 are in a static state, at this time, the first fixed pulley 21 does not rotate, when the driving device applies an upward force to the sample, the sample stretches upwards, the first chuck 5 moves upwards, the first fixed pulley 21 rotates, the balance device 4 moves downwards, at this time, the number of rotation turns of the first fixed pulley 21 is the increment of the sample gauge length.
In this embodiment, the driving device includes a tensile testing machine located on one side of the bracket 1 and two second chucks installed on the tensile testing machine, wherein one of the second chucks grips the lower portion of the sample to fix the sample, and the tensile testing machine can drive the other second chuck to grip and upwardly stretch the sample. The tension testing machine in the embodiment adopts an XLD-KE electronic tension testing machine, the electronic tension testing machine adopts a high-efficiency speed reducing mechanism, a high-precision lead screw and a speed-regulating driving system, and is driven by an alternating-current servo motor and an alternating-current servo device, and the XLD-KE electronic tension testing machine is suitable for the performance tests of stretching, stripping, deformation, tearing, heat sealing, adhesion, puncture force, opening force, low-speed unwinding force and the like of products such as plastic films, composite materials, adhesives, adhesive tapes, non-setting adhesives, medical patches, protective films, release paper, back plate materials, rubber, paper fibers and the like.
In this embodiment, the first chuck 5 includes a first clamping block 51, a second clamping block 52 and a spring 53 for connecting the first clamping block 51 and the second clamping block 52, and when the spring 53 is in a relaxed state, the first clamping block 51 is in plug-in fit with the second clamping block 52. The first chuck 5 in this embodiment uses a spring 53 to connect the first clamping block 51 and the second clamping block 52, and when the first chuck 5 needs to clamp a sample, the first clamping block 51 and the second clamping block 52 can be pulled apart manually, and the sample can be placed between the first clamping block 51 and the second clamping block 52 and clamped.
In this embodiment, the bracket 1 includes a base 11, a sliding rod 12 installed on the base 11, and two sliding blocks 13 slidably engaged with the sliding rod 12, wherein the two first chucks 5 are respectively fixedly connected to the two sliding blocks 13, and the first chucks 5 can slide along the length direction of the sliding rod 12. The first jaw 5 in this embodiment is mounted on a slide rod 12 through a slide block 13, and the first jaw 5 can slide up and down on the slide rod 12.
The large deformation measuring device of the single photoelectric encoder in the embodiment further comprises a protective cover 7, the protective cover 7 is installed above the support 1, and the photoelectric encoder 22 and the second fixed pulley are located in the protective cover 7. The protective cover 7 in this embodiment plays a protective role to prevent external factors from affecting the test.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (9)
1. The large deformation measuring device for the single photoelectric encoder is characterized by comprising a support (1), a photoelectric encoder device (2) arranged on the support (1), two transmission devices (3) positioned at two sides of the photoelectric encoder device (2), a balancing device (4) positioned below the photoelectric encoder device (2), two first chucks (5) positioned below the transmission devices (3), a driving device arranged at one side of the support (1) and a wire rope (6), wherein the wire rope (6) is sequentially connected with the first chucks (5), the transmission devices (3), the balancing device (4) and the photoelectric encoder device (2), the two first chucks (5) respectively clamp two sides of a sample, and the driving device can drive the sample to be stretched and deformed upwards to drive the photoelectric encoder device (2) to rotate, the optoelectronic encoder device (2) can read the stretched length of the specimen.
2. Single-photoelectric-encoder large-deformation measuring device according to claim 1, characterized in that the photoelectric encoder device (2) comprises a first fixed pulley (21) mounted on the support (1) and a photoelectric encoder (22) connected to the first fixed pulley (21), the first fixed pulley (21) being connected to the balancing device (4) by the wire (6).
3. Single-photoelectric-encoder large-deformation measuring device according to claim 2, characterized in that the transmission means (3) comprises two second fixed pulleys, which are arranged at a distance from each other, and the string (6) is connected in series with the first collet (5), the two second fixed pulleys and the balancing means (4).
4. The large deformation measuring device of a single photoelectric encoder as claimed in claim 3, wherein the balancing means (4) comprises a balancing mass (41), a mounting seat (42) mounted on the balancing mass (41), and two movable pulleys (43), the mounting seat (42) is provided with a groove, the two movable pulleys (43) are mounted in the groove at intervals and coaxially, and the first fixed pulley (21) is connected with the movable pulley (43) and the second fixed pulley in sequence through the wire (6).
5. Single-photoelectric-encoder large deformation measuring device according to claim 4, characterized in that the balancing means (4) is the same as the total weight of the two first chucks (5) and the test specimen.
6. The single-photoelectric-encoder large-deformation measuring device as recited in claim 1, wherein the driving means comprises a tensile tester located on one side of the frame (1) and two second chucks mounted on the tensile tester, one of the second chucks grips under the test specimen to hold the test specimen, and the tensile tester drives the other second chuck to grip and pull the test specimen upward.
7. Single-photoelectric-encoder large-deformation measuring device according to claim 1, characterized in that the first collet (5) comprises a first clamping block (51), a second clamping block (52) and a spring (53) for connecting the first clamping block (51) and the second clamping block (52), the first clamping block (51) and the second clamping block (52) being in a plug-in fit when the spring (53) is in a relaxed state.
8. The large deformation measuring device with the single photoelectric encoder as claimed in claim 1, wherein the support (1) comprises a base (11), a slide rod (12) mounted on the base (11) and two slide blocks (13) in sliding fit with the slide rod (12), the two first chucks (5) are respectively fixedly connected with the two slide blocks (13), and the first chucks (5) can slide along the length direction of the slide rod (12).
9. Single-photoelectric-encoder large deformation measuring device according to claim 3, characterized in that it further comprises a protective cover (7), said protective cover (7) being mounted above said support (1), said photoelectric encoder (22) and said second fixed pulley being located inside said protective cover (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922228931.8U CN211347673U (en) | 2019-12-12 | 2019-12-12 | Large deformation measuring device of single photoelectric encoder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922228931.8U CN211347673U (en) | 2019-12-12 | 2019-12-12 | Large deformation measuring device of single photoelectric encoder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848344A (en) * | 2021-10-28 | 2021-12-28 | 凤凰汇通(杭州)科技有限公司 | High-speed linear motion track testing device |
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2019
- 2019-12-12 CN CN201922228931.8U patent/CN211347673U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848344A (en) * | 2021-10-28 | 2021-12-28 | 凤凰汇通(杭州)科技有限公司 | High-speed linear motion track testing device |
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