CN213092609U - Deflection testing machine - Google Patents
Deflection testing machine Download PDFInfo
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- CN213092609U CN213092609U CN202021947257.5U CN202021947257U CN213092609U CN 213092609 U CN213092609 U CN 213092609U CN 202021947257 U CN202021947257 U CN 202021947257U CN 213092609 U CN213092609 U CN 213092609U
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- test piece
- test
- displacement sensor
- bottom plate
- testing machine
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- 238000012360 testing method Methods 0.000 title claims abstract description 133
- 238000006073 displacement reaction Methods 0.000 claims abstract description 49
- 230000008859 change Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 abstract description 7
- 238000002474 experimental method Methods 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000004154 testing of material Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model relates to a material detects technical field, especially relates to a flexibility testing machine, include: a base plate; the two supporting plates are symmetrically arranged on the bottom plate and used for horizontally supporting a test piece so that the test piece is suspended relative to the bottom plate; the counterweight block is detachably connected to the suspended part of the test piece and is used for applying vertical downward force to the test piece; the test seat is arranged on the bottom plate in a sliding manner along the length direction of the test piece; and the displacement sensor is arranged on the test seat and used for measuring the relative displacement change of the suspended part of the test piece along the vertical direction. The utility model discloses a flexibility testing machine overall structure is simple, convenient operation, and is small and portable, and the security is high, and is applicable in the teaching for the student demonstration and supply the student to go up the hand operation experiment, does benefit to and improves the teaching quality.
Description
Technical Field
The utility model relates to a material detects technical field, especially relates to a flexibility testing machine.
Background
At present, the material is generally tested by a large-scale material testing machine in teaching for the mechanical property of deflection. The test machine is used for teaching demonstration by using test pieces made of different materials, and can meet the requirement of basic students on the experiment of material bending on the macro scale. However, the conventional material testing machine is large in size, complex to use and has certain dangers. And students cannot operate the tester manually due to safety problems.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a deflection testing machine for solving the problems of large size, complicated operation and the like of the conventional material testing machine.
The above purpose is realized by the following technical scheme:
a deflection testing machine comprising:
a base plate;
the two supporting plates are symmetrically arranged on the bottom plate and used for horizontally supporting a test piece so that the test piece is suspended relative to the bottom plate;
the counterweight block is detachably connected to the suspended part of the test piece and is used for applying vertical downward force to the test piece;
the test seat is arranged on the bottom plate in a sliding manner along the length direction of the test piece; and
and the displacement sensor is arranged on the test seat and used for measuring the relative displacement change of the suspended part of the test piece along the vertical direction.
In one embodiment, the bottom plate is provided with a linear slide rail, the linear slide rail is arranged along the length direction of the test piece, and the test seat is provided with a slide block which is in sliding fit with the linear slide rail.
In one embodiment, the flexibility testing machine further comprises an electric slide rail, the electric slide rail comprises a rail part and a sliding part, the sliding part is connected to the rail part in a sliding mode, the rail part is arranged on the bottom plate along the length direction of the test piece, and the test seat is connected to the sliding part.
In one embodiment, the deflection testing machine further comprises an electric screw pair, the electric screw pair comprises a screw rod part and a sliding seat part, the sliding seat part is movably connected to the screw rod part, the screw rod part is arranged on the bottom plate along the length direction of the test piece, and the test seat is connected to the sliding seat part.
In one embodiment, the test seat comprises a mounting groove and a limiting structure, the displacement sensor is mounted in the mounting groove, and the limiting structure is arranged on the test seat and can be in contact with the displacement sensor, so that the position of the displacement sensor relative to the mounting groove is fixed.
In one embodiment, the limiting structure comprises a threaded column, the threaded column is rotatably connected to the side wall of the test seat, and one end of the threaded column can extend into the mounting groove and abut against the displacement sensor.
In one embodiment, the limiting structure further comprises a butting rod, two ends of the butting rod are respectively connected to the two side groove walls of the mounting groove, and the butting rod is arranged between the end of the threaded column and the displacement sensor.
In one embodiment, the balancing weight comprises two clamping seats, the two clamping seats are symmetrically connected to two sides of the balancing weight, and each clamping seat is provided with a clamping groove matched with the test piece in a contact mode.
In one embodiment, each support plate comprises a support groove, the support groove is arranged at one end of the support plate far away from the bottom plate, the end of the test piece is placed in the support groove, and the support groove is used for limiting the test piece to move only along the length direction of the test piece.
In one embodiment, the displacement sensor is a laser displacement sensor.
The flexibility testing machine at least has the following technical effects:
above-mentioned flexibility testing machine constitutes the main body frame of testing machine by bottom plate and backup pad, and during the use, the test piece is unsettled to be placed in the bottom plate top, and the balancing weight is connected on the test piece as application of force spare detachably, utilizes displacement sensor to measure the relative displacement change between the different positions of the unsettled part of test piece simultaneously. The testing machine is simple in overall structure, convenient to operate, small in size, convenient to carry, high in safety, applicable to teaching, capable of demonstrating students and supplying students to conduct operation tests on hands, and beneficial to improvement of teaching quality.
Drawings
Fig. 1 is a schematic structural view of a deflection testing machine according to an embodiment of the present invention.
Wherein:
100-a base plate;
110-linear slide rail;
200-a support plate;
210-a support slot;
300-a balancing weight;
310-a card holder; 311-card slot;
400-test seat;
410-a slider; 420-mounting grooves;
430-a limit structure; 431-threaded post; 432-a butt-joint rod;
500-a displacement sensor;
600-test piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description of the deflection testing machine of the present invention is made in detail by embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the deflection testing machine according to an embodiment of the present invention includes a bottom plate 100, two supporting plates 200 symmetrically disposed on the bottom plate 100, a weight block 300, a testing seat 400, and a displacement sensor 500. The two support plates 200 serve to horizontally support the test piece 600 so that the test piece 600 is suspended with respect to the base plate 100. The counterweight 300 is detachably connected to the suspended part of the test piece 600, and the counterweight 300 is used for applying vertical downward force to the test piece 600. The test socket 400 is slidably disposed on the base plate 100 in the length direction of the test piece 600. The displacement sensor 500 is mounted on the test socket 400, and the displacement sensor 500 is used for measuring the relative displacement change in the vertical direction between different positions of the suspended part of the test piece 600.
Wherein, the two supporting plates 200 and the bottom plate 100 may be integrally formed. Alternatively, the two support plates 200 may be symmetrically connected to both ends of the base plate 100 by welding. The base plate 100 and the support plate 200 may be made of a wood material or a plastic material.
In one embodiment, each support plate 200 includes a support groove 210, the support groove 210 is disposed at an end of the support plate 200 away from the base plate 100, an end of the test piece 600 is placed in the support groove 210, and the support groove 210 is used to limit the test piece 600 to move only in a length direction of the test piece 600. Not only be convenient for realize the unsettled support to test piece 600 through setting up support groove 210, can carry on spacingly to test piece 600 in other directions except that test piece 600 length direction moreover.
The utility model discloses displacement sensor 500 of embodiment is preferably laser sensor. The laser sensor is one of non-contact measurement, and can accurately measure changes in position, displacement, and the like of a measured object.
The utility model discloses amount of deflection testing machine constitutes the main body frame of testing machine by bottom plate 100 and backup pad 200, during the use, and test piece 600 is unsettled to be placed in bottom plate 100 top, and balancing weight 300 connects on test piece 600 as application of force spare detachably, utilizes displacement sensor 500 to measure the relative displacement change between the different positions of test piece 600 unsettled part simultaneously. The testing machine is simple in overall structure, convenient to operate, small in size, convenient to carry, high in safety, applicable in teaching, capable of demonstrating students and supplying students to conduct operation tests on hands, and beneficial to improvement of teaching quality.
The way in which the test socket 400 is slid on the base plate 100 may be various. Referring to fig. 1, as an implementation manner, a linear slide rail 110 is disposed on a base plate 100, the linear slide rail 110 is disposed along a length direction of a test piece 600, a slider 410 is disposed on a test socket 400, and the slider 410 is in sliding fit with the linear slide rail 110. Through the sliding fit of the slider 410 and the linear slide rail 110, the stable and reliable sliding of the test seat 400 relative to the base plate 100 is easily realized, and a tester can drive the displacement sensor 500 on the test seat 400 to acquire the displacement changes of a plurality of different points of the test piece 600 through the test seat 400.
In other embodiments, the deflectometer further comprises an electric slide rail, which comprises a rail portion and a sliding portion, wherein the sliding portion is slidably connected to the rail portion, the rail portion is arranged on the base plate 100 along the length direction of the test piece 600, and the test seat 400 is connected to the sliding portion. Still alternatively, in another embodiment, the deflectometer further comprises an electric screw pair, the electric screw pair comprises a screw portion and a slide portion, the slide portion is movably connected to the screw portion, the screw portion is arranged on the bottom plate 100 along the length direction of the test piece 600, and the test socket 400 is connected to the slide portion.
Referring to fig. 1, as an implementation manner, the test socket 400 includes a mounting groove 420 and a position limiting structure 430, the displacement sensor 500 is mounted in the mounting groove 420, and the position limiting structure 430 is disposed on the test socket 400 and can contact the displacement sensor 500, so that the position of the displacement sensor 500 is fixed relative to the mounting groove 420. The displacement sensor 500 can be stably and reliably mounted on the test socket 400 through the mounting groove 420 and the stopper structure 430. The test socket 400 may be made of plastic or the like.
The structure of the position limiting structure 430 may be various. In one embodiment, the position limiting structure 430 includes a threaded column 431, the threaded column 431 is rotatably connected to the sidewall of the test socket 400, and one end of the threaded column 431 can extend into the mounting groove 420 and abut on the displacement sensor 500. Through setting up threaded column 431, when displacement sensor 500 placed in mounting groove 420, can rotate threaded column 431 towards displacement sensor 500 one side for threaded column 431 butt and exert certain extrusion force to displacement sensor 500, thereby can make displacement sensor 500 fix in mounting groove 420 reliably, avoid displacement sensor 500 to shake when following test seat 400 and take place and influence the detection precision.
Further, the limiting structure 430 further includes a butting rod 432, two ends of the butting rod 432 are respectively connected to two side groove walls of the mounting groove 420, and the butting rod 432 is disposed between the end of the threaded column 431 and the displacement sensor 500. By providing the abutting rod 432, the biasing area of the screw post 431 against the displacement sensor 500 can be increased, and the displacement sensor 500 can be fixed more reliably. In other embodiments, the abutment rod 432 may also be directly connected to the end of the threaded post 431 that extends into the mounting slot 420.
Referring to fig. 1, as an implementation manner, the counterweight 300 includes two clamping seats 310, the two clamping seats 310 are symmetrically connected to two sides of the counterweight 300, and each clamping seat 310 is provided with a clamping groove 311 in contact fit with the test piece 600. In this embodiment, the counterweight 300 can be erected on the test piece 600 through the two clamping seats 310, and it can be understood that the mass of the counterweight 300 can be selected according to the test requirement. Through two cassette 310 and test piece 600 cooperation connections, not only easily realize the connection of the easy to detach formula of balancing weight 300 and test piece 600, balancing weight 300 can dodge the position that supplies displacement sensor 500 to detect test piece 600 without hindrance simultaneously, effectively guarantees to detect the precision.
Use the utility model discloses a during the deflection testing machine, put test piece 600's both ends on two backup pads 200 earlier, then can exert known power to test piece 600 through erect balancing weight 300 on test piece 600, remove displacement sensor 500 to the position of being convenient for the test again, later observe test piece 600 deformation and displacement sensor 500's detection data can. The utility model discloses a deflection test machine has small, easy operation, and the security is high characteristics, and it adopts simple reliable mechanical structure and the sensor commonly used in the industry to build, and the test device stable performance, unit price far are less than the current mechanics teaching experiment machine in laboratory. Meanwhile, the testing machine is simple in structure, faults are easy to find and remove, maintenance cost is low, and efficiency is high. The experimental machine can effectively improve the participation of students to better complete the corresponding experiment of courses, and is convenient for the students to deeply understand the classroom knowledge, arouse the desire of exploring and learning of the students, create the atmosphere of exploring and learning, and contribute to the improvement of teaching quality.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A deflection testing machine is characterized by comprising:
a base plate;
the two supporting plates are symmetrically arranged on the bottom plate and used for horizontally supporting a test piece so that the test piece is suspended relative to the bottom plate;
the counterweight block is detachably connected to the suspended part of the test piece and is used for applying vertical downward force to the test piece;
the test seat is arranged on the bottom plate in a sliding manner along the length direction of the test piece; and
and the displacement sensor is arranged on the test seat and used for measuring the relative displacement change of different positions of the suspended part of the test piece along the vertical direction.
2. The deflection testing machine according to claim 1, wherein a linear slide rail is arranged on the bottom plate, the linear slide rail is arranged along the length direction of the test piece, and a slide block is arranged on the test seat and is in sliding fit with the linear slide rail.
3. The deflectometer of claim 1 further comprising a motorized slide rail, said motorized slide rail comprising a rail portion and a sliding portion, said sliding portion being slidably attached to said rail portion, said rail portion being disposed on said base plate along the length of the test piece, said test socket being attached to said sliding portion.
4. The deflectometer of claim 1 further comprising an electric screw pair, wherein the electric screw pair comprises a screw portion and a slide portion, the slide portion is movably connected to the screw portion, the screw portion is disposed on the bottom plate along the length direction of the test piece, and the test socket is connected to the slide portion.
5. The deflectometer of claim 1 wherein the test seat includes a mounting slot in which the displacement sensor is mounted and a stop structure disposed on the test seat and contactable with the displacement sensor to fix the position of the displacement sensor relative to the mounting slot.
6. The deflection testing machine of claim 5, wherein the limiting structure comprises a threaded column rotatably connected to the side wall of the test seat, and one end of the threaded column can extend into the mounting groove and abut against the displacement sensor.
7. The deflection testing machine according to claim 6, wherein the limiting structure further comprises an abutting rod, two ends of the abutting rod are respectively connected to two side groove walls of the mounting groove, and the abutting rod is arranged between the end of the threaded column and the displacement sensor.
8. The deflection testing machine according to claim 1, wherein the balancing weight comprises two clamping seats, the two clamping seats are symmetrically connected to two sides of the balancing weight, and each clamping seat is provided with a clamping groove matched with the test piece in a contact manner.
9. The deflectometer of claim 1, wherein each support plate comprises a support groove, the support groove is arranged at one end of the support plate far away from the bottom plate, the end part of the test piece is placed in the support groove, and the support groove is used for limiting the test piece to move only along the length direction of the test piece.
10. The deflectometer of claim 1, wherein the displacement sensor is a laser displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021947257.5U CN213092609U (en) | 2020-09-07 | 2020-09-07 | Deflection testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021947257.5U CN213092609U (en) | 2020-09-07 | 2020-09-07 | Deflection testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213092609U true CN213092609U (en) | 2021-04-30 |
Family
ID=75634444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021947257.5U Expired - Fee Related CN213092609U (en) | 2020-09-07 | 2020-09-07 | Deflection testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213092609U (en) |
-
2020
- 2020-09-07 CN CN202021947257.5U patent/CN213092609U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210430 |