CN211042081U - Resistance strain gauge pasting device - Google Patents
Resistance strain gauge pasting device Download PDFInfo
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- CN211042081U CN211042081U CN201922019713.3U CN201922019713U CN211042081U CN 211042081 U CN211042081 U CN 211042081U CN 201922019713 U CN201922019713 U CN 201922019713U CN 211042081 U CN211042081 U CN 211042081U
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- shell
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- spring sleeve
- threads
- resistance strain
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- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a resistance strain gauge pasting device, including shell, removable formula location base and lock attach the mechanism, the removable formula location base insert the lower extreme of shell to link together through countersunk bolt and shell, be equipped with the through-hole that supplies the cylinder to pass on the removable formula location base, the cross section of shell is the rectangle, the shell is hollow structure; the utility model has simple structure and simple operation, and can improve the pasting precision of the strain gauge; the utility model presses the button downwards to press the spring sleeve into the shell, so that the top of a plurality of plastic threads can be driven to be respectively embedded between two adjacent threads of the internal thread by only utilizing the pressing deformation of the plastic threads, thereby realizing the fixation of the spring sleeve and the shell without the help of an auxiliary tool, and the locking is quick and has good effect; the top of a plurality of plastic screw threads can be driven to be screwed out along the spiral direction of the internal thread respectively by rotating the button, so that the spring sleeve is separated from the shell.
Description
Technical Field
The utility model belongs to the technical field of the foil gage, concretely relates to resistance foil gage pastes device.
Background
A resistive strain gauge is a device for measuring strain that is composed of a sensitive grid or the like. The resistance strain gauge has various shapes and is widely used in various mechanical tests. The working principle of the device is that when a conductor or a semiconductor is mechanically deformed under the action of external force, the resistance value of the conductor or the semiconductor is correspondingly changed, and the phenomenon is called as a strain effect. When the resistance strain gauge is used, the resistance strain gauge needs to be adhered to a measuring point of a component, after the component is stressed, the resistance of the resistance strain gauge changes along with the strain of the measuring point, and then the resistance value of the resistance strain gauge is measured by a special instrument and converted into the strain of the measuring point. Whether the pasting position and the pasting angle of the resistance strain gauge are correct or not can greatly influence the strain of the measuring point obtained by the test.
At present, few patents are available for adhering resistance strain gauges. In actual operation, the strain gauge is generally pasted by hands or tweezers. Because the size of the resistance strain gauge is about 5 mm generally, the position error of the strain gauge is overlarge inevitably due to manual pasting, and finally the test result is inaccurate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device is pasted to resistance strain gauge to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a resistance strain gauge pasting device comprises a shell, a replaceable positioning base and a locking mechanism, wherein the replaceable positioning base is inserted into the lower end of the shell and connected with the shell through a countersunk bolt, a through hole for a cylinder to pass through is formed in the replaceable positioning base, the cross section of the shell is rectangular, and the shell is of a hollow structure; the locking mechanism comprises a knob arranged outside the shell, a spring sleeve arranged inside the shell, a first spring and a pressing plate in sequence from top to bottom, wherein one end of the spring sleeve is connected with the knob, and the other end of the spring sleeve is arranged inside the shell and is in sliding connection with the shell; one end of the first spring is arranged inside the spring sleeve, the other end of the first spring is connected with the pressing plate, the pressing plate is connected with the shell in a sliding mode, the lower portion of the pressing plate is connected with a cylinder, a second spring is sleeved outside the cylinder, one end of the second spring is connected with the pressing plate, the other end of the second spring is abutted to the replaceable positioning base, the cylinder penetrates through a through hole in the replaceable positioning base and is connected with the sucker, and the sucker is connected with the vacuum generator through an air pipe.
Preferably, the inner wall of the shell is provided with a metal separation block, the metal separation block separates the interior of the shell into an upper cavity and a lower cavity, and the upper cavity is internally provided with internal threads.
Preferably, a plurality of mutually independent plastic threads are arranged on the outer side of the spring sleeve, and the top shapes of the plastic threads are matched with the internal threads.
Preferably, the heights of the plastic threads are all 1-3mm, and the cross sections of the plastic threads are trapezoidal.
Preferably, the knob is provided with barb teeth on the periphery and is provided with a plurality of slots at intervals in a concave mode.
Compared with the prior art, the resistance strain gauge pasting device has the advantages of simple structure and simple operation, and can improve the pasting precision of the strain gauge; the utility model presses the button downwards to press the spring sleeve into the shell, so that the top of a plurality of plastic threads can be driven to be respectively embedded between two adjacent threads of the internal thread by only utilizing the pressing deformation of the plastic threads, thereby realizing the fixation of the spring sleeve and the shell without the help of an auxiliary tool, and the locking is quick and has good effect; the top of a plurality of plastic screw threads can be driven to be screwed out along the spiral direction of the internal thread respectively by rotating the button, so that the spring sleeve is separated from the shell.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
fig. 1 is a schematic structural view of the resistance strain gauge pasting device of the present invention.
In the figure: 1. a housing; 2. a knob; 3. a spring sleeve; 4. a first spring; 5. pressing a plate; 6. a cylinder; 7. a second spring; 8. a metal barrier; 9. an internal thread; 10. a replaceable positioning base; 11. a suction cup; 12. a countersunk bolt; 13. plastic screw threads; 14. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a resistance strain gauge pasting device comprises a shell 1, a replaceable positioning base 10 and a locking mechanism, wherein the replaceable positioning base 10 is inserted into the lower end of the shell 1 and connected with the shell 1 through a countersunk head bolt 12, a through hole 14 for a cylinder 6 to pass through is formed in the replaceable positioning base 10, the cross section of the shell 1 is rectangular, and the shell 1 is of a hollow structure; the locking mechanism sequentially comprises a knob 2 arranged outside the shell 1, a spring sleeve 3 arranged inside the shell 1, a first spring 4 and a pressing plate 5 from top to bottom, wherein one end of the spring sleeve 3 is connected with the knob 2, and the other end of the spring sleeve 3 is arranged inside the shell 1 and is in sliding connection with the shell 1; one end of the first spring 4 is arranged inside the spring sleeve 3, the other end of the first spring is connected with the pressing plate 5, the pressing plate 5 is connected with the shell 1 in a sliding mode, the lower portion of the pressing plate 5 is connected with the cylinder 6, the second spring 7 is sleeved outside the cylinder 6, one end of the second spring 7 is connected with the pressing plate 5, the other end of the second spring is abutted to the replaceable positioning base 10, the cylinder 6 penetrates through a through hole 14 in the replaceable positioning base 10 to be connected with the sucker 11, and the sucker 11 is connected with the vacuum generator through an air pipe.
In this embodiment 2 periphery has the barb tooth and the interval is concave to be equipped with most seam and is glued, not only can avoid the rotation to skid, and is laborsaving moreover, effectively improves the practicality of knob.
In this embodiment the inner wall of the shell 1 is provided with a metal separation baffle 8, the metal separation baffle 8 separates the interior of the shell 1 into an upper chamber and a lower chamber, an internal thread 9 is arranged in the upper chamber, the outer side of the spring sleeve 3 is provided with a plurality of mutually independent plastic threads 13, and the top shapes of the plastic threads 13 are matched with the internal thread 9.
In the embodiment, the heights of the plastic threads 13 are all 1-3mm, and the cross sections of the plastic threads 13 are all trapezoidal.
The utility model adopts the above technical scheme, when pasting the foil gage, place the foil gage in the through-hole 14 of the removable formula location base 10, press the button 2 downwards, impress the spring sleeve 3 into the shell 1, make it only need to utilize the pressing deformation of plastic thread 13, can drive the top of a plurality of plastic thread 13 to embed respectively between two adjacent threads of internal thread 9, thus need not to realize with the help of appurtenance that spring sleeve 3 and shell 1 are fixed, the lock attaches swiftly, effectual; the strain gauge is fixed on the suction cup 11 under the action of the vacuum generator; then coating glue on the surface of the test piece, enabling the replaceable positioning base 10 to be tightly attached to the surface of the test piece, and aligning the positioning scribed lines on the replaceable base 10 with the marked lines on the surface of the test piece; then, the button 2 is pushed downwards to the lowest position, the sucking disc 11 and the strain gauge are driven by the button 2 to move downwards, so that the strain gauge is pushed out of the replaceable positioning base 10 by the sucking disc 11 and is in close contact with the surface of the test piece; after the glue is dried for 5-15 seconds, the top parts of the plastic threads 13 can be driven to be screwed out along the spiral direction of the internal threads 9 respectively by rotating the button 2, so that the spring sleeve 3 is separated from the shell 1.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a device is pasted to resistance foil gage, includes shell (1), removable formula location base (10) and lock and attaches the mechanism, its characterized in that: the replaceable positioning base (10) is inserted into the lower end of the shell (1) and connected with the shell (1) through a countersunk bolt (12), a through hole (14) for a cylinder (6) to pass through is formed in the replaceable positioning base (10), the cross section of the shell (1) is rectangular, and the shell (1) is of a hollow structure; the locking mechanism sequentially comprises a knob (2) arranged outside the shell (1), a spring sleeve (3) arranged inside the shell (1), a first spring (4) and a pressing plate (5) from top to bottom, wherein one end of the spring sleeve (3) is connected with the knob (2), and the other end of the spring sleeve is arranged inside the shell (1) and is in sliding connection with the shell (1); the improved vacuum pump is characterized in that one end of the first spring (4) is arranged inside the spring sleeve (3), the other end of the first spring is connected with the pressing plate (5), the pressing plate (5) is connected with the shell (1) in a sliding mode, the lower portion of the pressing plate (5) is connected with the cylinder (6), the second spring (7) is sleeved outside the cylinder (6), one end of the second spring (7) is connected with the pressing plate (5), the other end of the second spring is abutted to the replaceable positioning base (10), the cylinder (6) penetrates through a through hole (14) in the replaceable positioning base (10) to be connected with the sucker (11), and the sucker (11) is connected with the vacuum generator through an air pipe.
2. The resistance strain gage pasting device according to claim 1, wherein: the utility model discloses a shell, including shell (1), metal separates and keeps off (8), the metal separates and keeps off (8) and separates into upper plenum and lower plenum with shell (1) inside, the indoor internal thread (9) that is provided with of upper plenum.
3. The resistance strain gage pasting device according to claim 1, wherein: the outer side of the spring sleeve (3) is provided with a plurality of mutually independent plastic threads (13), and the top shapes of the plastic threads (13) are matched with the internal threads (9).
4. A resistance strain gauge attaching apparatus according to claim 3, wherein: the height of each plastic screw tooth (13) is 1-3mm, and the cross section of each plastic screw tooth (13) is trapezoidal.
5. The resistance strain gage pasting device according to claim 1, wherein: the periphery of the knob (2) is provided with barb teeth and a plurality of slots are concavely arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019713.3U CN211042081U (en) | 2019-11-21 | 2019-11-21 | Resistance strain gauge pasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922019713.3U CN211042081U (en) | 2019-11-21 | 2019-11-21 | Resistance strain gauge pasting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211042081U true CN211042081U (en) | 2020-07-17 |
Family
ID=71535097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922019713.3U Active CN211042081U (en) | 2019-11-21 | 2019-11-21 | Resistance strain gauge pasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211042081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361951A (en) * | 2020-11-10 | 2021-02-12 | 水利部产品质量标准研究所 | Pen type auxiliary tool in pasting process of resistance strain gauge |
| CN113513519A (en) * | 2021-05-17 | 2021-10-19 | 南京贺普科技有限公司 | Strain gauge pasting device |
-
2019
- 2019-11-21 CN CN201922019713.3U patent/CN211042081U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361951A (en) * | 2020-11-10 | 2021-02-12 | 水利部产品质量标准研究所 | Pen type auxiliary tool in pasting process of resistance strain gauge |
| CN113513519A (en) * | 2021-05-17 | 2021-10-19 | 南京贺普科技有限公司 | Strain gauge pasting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231115 Address after: 523000 Building 1, No.1 Xuefu Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Guangdong Qingda Innovation Research Institute Co.,Ltd. Address before: Building 1, No.1 Xuefu Road, Songshan Lake Park, Dongguan City, Guangdong Province, 523808 Patentee before: TSINGHUA INNOVATION CENTER IN DONGGUAN |
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| TR01 | Transfer of patent right |