CN217237571U - Bending sample deformation measuring mechanism - Google Patents
Bending sample deformation measuring mechanism Download PDFInfo
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- CN217237571U CN217237571U CN202220437427.8U CN202220437427U CN217237571U CN 217237571 U CN217237571 U CN 217237571U CN 202220437427 U CN202220437427 U CN 202220437427U CN 217237571 U CN217237571 U CN 217237571U
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Abstract
The utility model provides a crooked sample deformation measurement mechanism, which comprises a fixed base, the fixed connecting rod that is provided with in right side of fixing base, the right-hand head that adds power that is provided with of connecting rod, the fixed measuring apparatu mounting bracket that is provided with in below of adding the head, the measuring apparatu mounting bracket includes deflector and backup pad, arbitrary one deformation measuring stick all is connected with a horizontal pole in the top of deflector separately, the downside at the both ends of arbitrary one horizontal pole all is connected with a guide bar separately, arbitrary one guide bar all passes deflector and backup pad downwards and downwardly extending, all be provided with a linear bearing between arbitrary one guide bar and the deflector, all be provided with a spacing tang in the top of backup pad on arbitrary one guide bar, all be provided with a reset spring between arbitrary one spacing tang and the backup pad. The utility model provides a reset spring can promote the horizontal pole for deformation measuring stick and crooked sample are more laminated, and it is minimum to the bending force influence of sample, make measuring result more accurate.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to material bending deformation test device, especially a bending test sample deformation measurement mechanism.
Background
In the bending sample deformation measurement test, a measurement device is used to measure a sample. In the prior art, the deformation measuring rod is not attached to the bending test sample, so that the measuring result is inaccurate.
Disclosure of Invention
An object of the utility model is to provide a crooked sample deformation measurement mechanism, this kind of crooked sample deformation measurement mechanism solve among the prior art crooked sample deformation measurement test result unsafe technical problem.
The utility model discloses a bending sample deformation measuring mechanism, which comprises a fixed base, the right side of the fixed base is fixedly provided with a connecting rod, the right side of the connecting rod is provided with a stress application head, the upper side of the stress application head is connected with a stress application rod, the lower side of the stress application head is fixedly provided with a measuring instrument mounting rack, the measuring instrument mounting rack comprises a guide plate and a support plate, the support plate is positioned below the guide plate, the lower side of the guide plate is provided with two small stroke measuring instruments and a large stroke measuring instrument at intervals along the length direction thereof, the large stroke measuring instrument is arranged at the right side of the small stroke measuring instrument, the upper sides of the small stroke measuring instrument and the large stroke measuring instrument are respectively connected with a deformation measuring rod, any one deformation measuring rod is respectively connected with a cross rod above the guide plate, the length direction of the cross rod is parallel to the width direction of the guide plate, the lower sides of both ends of any cross rod are respectively connected with a guide rod, any one guide rod downwards penetrates through the guide plate and the support plate and downwards extends, a linear bearing is arranged between any one guide rod and the guide plate, a limiting spigot is arranged above the support plate on any one guide rod, and a reset spring is arranged between any one limiting spigot and the support plate.
Furthermore, the small stroke measuring instrument and the large stroke measuring instrument are respectively connected with the deformation measuring rod through couplers.
Compared with the prior art, the utility model, its effect is positive and obvious. The utility model provides a reset spring can promote the horizontal pole for deformation measuring stick and crooked sample are more laminated, and it is minimum to the bending force influence of sample, make measuring result more accurate. The movable frame is composed of the deformation measuring rod, the cross rod and the guide rod, the compression amount of the reset spring is adjustable, the balance of the ejection force of the movable frame and the reset spring is realized, the force of the deformation measuring rod on the bending sample is small, the deformation measuring rod can move along with the deformation of the bending sample, and the influence of the ejection force on the bending test can be ignored. The large stroke gauge can measure the deformation of the large stroke. The small stroke measuring instrument is used for measuring the deformation of the small stroke, and the measuring precision is higher. And the mounting hole of the measuring instrument is reserved, and the mounting position of the measuring instrument can be adjusted according to needs.
Drawings
Fig. 1 is a perspective view of the bending sample deformation measuring mechanism of the present invention.
Fig. 2 is a front view of a bending sample deformation measuring mechanism according to the present invention.
Fig. 3 is a sectional view a-a of fig. 2.
Fig. 4 is a top view of a bending sample deformation measuring mechanism according to the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments, but the present invention is not limited to this embodiment, and the protection scope of the present invention should be included in all similar structures and similar variations thereof. The utility model provides an upper and lower, preceding, back, left and right equidirectional use only for the description convenience, it is not right the technical scheme's of the utility model restriction.
Example 1
As shown in fig. 1, 2, 3 and 4, the bending sample deformation measuring mechanism of the present invention comprises a fixing base 1, a connecting rod 2 is fixedly disposed on the right side of the fixing base 1, a force applying head 4 is disposed on the right side of the connecting rod 2, a force applying rod (not shown) is connected to the upper side of the force applying head 4, a measuring instrument mounting frame 6 is fixedly disposed below the force applying head 4, the measuring instrument mounting frame 6 comprises a guide plate 15 and a support plate 16, the support plate 16 is disposed below the guide plate 15, two small stroke measuring instruments 9 and one large stroke measuring instrument 8 are disposed on the lower side of the guide plate 15 along the length direction thereof at intervals, the large stroke measuring instrument 8 is disposed on the right side of the small stroke measuring instrument 9, the upper sides of the small stroke measuring instrument 9 and the large stroke measuring instrument 8 are respectively connected to a deformation measuring rod 5, any one deformation measuring rod 5 is respectively connected to a cross rod 14 above the guide plate 15, the length direction of the cross rods 14 is parallel to the width direction of the guide plates 15, the lower sides of two ends of any one of the cross rods 14 are respectively connected with one guide rod 12, any one of the guide rods 12 downwards penetrates through the guide plates 15 and the support plates 16 and downwards extends, a linear bearing 13 is arranged between any one of the guide rods 12 and the guide plates 15, a limiting spigot 17 is arranged above the support plates 16 on any one of the guide rods 12, and a return spring 7 is arranged between any one of the limiting spigot 17 and the support plates 16.
Further, the small stroke measuring instrument 9 and the large stroke measuring instrument 8 are connected with the deformation measuring rod 5 through a coupling 11.
Specifically, the small stroke measuring instrument 9, the large stroke measuring instrument 8, the linear bearing 13, the return spring 7 and the like in the present embodiment all adopt known solutions in the prior art, which are known to those skilled in the art and are not described herein again.
The working principle of the embodiment is as follows:
the bending sample deformation measuring mechanism is used for measuring the bending degree of a sample in the reciprocating bending test process, and can measure the deformation of three positions.
The fixing seat 1 and the measuring instrument mounting frame 6 are fixing parts in the test process. The sample connecting rod 2 is fixed with the fixed seat 1 through a set screw 10. The bending specimen 3 is connected to the specimen connection rod 2 by a screw. During the test, the deformation of the bending sample 3 is transmitted to the large stroke measuring instrument 8 and the small stroke measuring instrument 9 through the deformation measuring rod 5, so that the deformation amount of the sample is measured. The return spring 7 pushes the cross bar 14 so that the deformation measuring rod 5 is more attached to the bending test piece 3 and the bending force on the test piece 3 is minimally affected.
3. The detailed test process is as follows:
a. the sample fixing seat 1 and the measuring instrument mounting rack 6 are fixing parts and do not move in the sample process.
b. The bending test piece 3 is connected with the test piece connecting rod 2 through self-provided threads.
c. One end of the sample connecting rod 2 is placed in the sample fixing seat 1, and the sample connecting rod 2 is fastened by a fastening screw 10.
d. The right end of the bending sample 3 is sleeved with the force applying head 4.
e. And 3 deformation measuring rods 5 are arranged. And measuring the deformation of the sample at different positions in the test process.
f. The force application head 4 is loaded. The bent sample 3 has a large end deformation amount and is therefore measured by the large stroke gauge 8. The deformation of the middle part and the head part of the bending sample 3 is small, so the small stroke measuring instrument 9 is adopted for measurement.
g. The deformation measuring rod 5 is in slight force contact with the bending sample 3, and the measurement of the loading force of the bending sample 3 is not influenced.
h. The deformation measuring rod 5, the cross rod 14 and the guide rod 12 are all rigidly connected through threads or set screws to form a moving frame, and the moving frame is integrally compressed onto the return spring 7.
i. After the bending test is finished. The deformation measuring rod 5 is removed first, and then the force application head 4 and the bending test piece 3 are removed.
The utility model provides a reset spring 7 can promote horizontal pole 14 for deformation measuring stick 5 is more laminated with crooked sample 3, and is minimum to the bending force influence of sample 3, makes measuring result more accurate. The deformation measuring rod 5, the cross rod 14 and the guide rod 12 form a movable frame, the compression amount of the reset spring 7 is adjustable, the balance of ejection forces of the movable frame and the reset spring 7 is realized, the force of the deformation measuring rod 5 on the bending sample 7 is small, the deformation measuring rod can move along with the deformation of the bending sample 3, and the influence of the ejection force on the bending test can be ignored. The large stroke gauge 8 can measure the deformation of the large stroke. The small stroke measuring instrument 9 is used for measuring the deformation of the small stroke, and the measuring precision is higher. And the mounting hole of the measuring instrument is reserved, and the mounting position of the measuring instrument can be adjusted according to needs.
Claims (2)
1. A bending sample deformation measuring mechanism is characterized in that: comprises a fixed seat (1), a connecting rod (2) is fixedly arranged on the right side of the fixed seat (1), a force application head (4) is arranged on the right side of the connecting rod (2), a force application rod is connected on the upper side of the force application head (4), a measuring instrument mounting frame (6) is fixedly arranged below the force application head (4), the measuring instrument mounting frame (6) comprises a guide plate (15) and a support plate (16), the support plate (16) is positioned below the guide plate (15), two small stroke measuring instruments (9) and a large stroke measuring instrument (8) are arranged on the lower side of the guide plate (15) at intervals along the length direction of the guide plate, the large stroke measuring instrument (8) is arranged on the right side of the small stroke measuring instrument (9), the upper sides of the small stroke measuring instruments (9) and the large stroke measuring instruments (8) are respectively connected with a deformation measuring rod (5), any one deformation measuring rod (5) is respectively connected with a cross rod (14) above the guide plate (15), the length direction of horizontal pole (14) is on a parallel with the width direction of deflector (15), the downside at the both ends of arbitrary horizontal pole (14) all is connected with a guide bar (12) respectively, arbitrary guide bar (12) all passes deflector (15) and backup pad (16) downwards and downwardly extending, all be provided with a linear bearing (13) between arbitrary guide bar (12) and deflector (15), all be provided with one spacing tang (17) in the top of backup pad (16) on arbitrary guide bar (12), all be provided with one reset spring (7) between arbitrary spacing tang (17) and backup pad (16).
2. A bending specimen deformation measuring mechanism according to claim 1, characterized in that: the small stroke measuring instrument (9) and the large stroke measuring instrument (8) are respectively connected with the deformation measuring rod (5) through a coupler (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220437427.8U CN217237571U (en) | 2022-03-02 | 2022-03-02 | Bending sample deformation measuring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220437427.8U CN217237571U (en) | 2022-03-02 | 2022-03-02 | Bending sample deformation measuring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217237571U true CN217237571U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220437427.8U Active CN217237571U (en) | 2022-03-02 | 2022-03-02 | Bending sample deformation measuring mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217237571U (en) |
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2022
- 2022-03-02 CN CN202220437427.8U patent/CN217237571U/en active Active
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