CN113107940A - Multifunctional on-shaft strain gauge pasting tool - Google Patents
Multifunctional on-shaft strain gauge pasting tool Download PDFInfo
- Publication number
- CN113107940A CN113107940A CN202110371176.8A CN202110371176A CN113107940A CN 113107940 A CN113107940 A CN 113107940A CN 202110371176 A CN202110371176 A CN 202110371176A CN 113107940 A CN113107940 A CN 113107940A
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- sliding block
- rubber elastic
- connecting plate
- multifunctional
- elastic pad
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- 229920000298 Cellophane Polymers 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a multifunctional on-shaft strain gage pasting tool, which comprises: the magnetic base comprises a magnetic base body, a magnetic core, a lifting platform, an adjusting nut, a supporting spring, a high-transparency film sheet, a rubber elastic pad and a carrier platform, wherein the magnetic base body consists of a supporting base and a connecting plate, the supporting base is symmetrically arranged on the connecting plate, the lifting platform is arranged between the two supporting bases, the supporting spring is arranged between the connecting plate and a sliding block, and the adjusting nut is arranged on the lifting platform; the carrier platform is clamped on the sliding block; the rubber elastic cushion is fixed on the carrier platform, and the high-transparency film sheet is attached to the rubber elastic cushion. Simple structure, simple to operate, the purpose of applying the effort along the axle center direction when foil gage is pasted has been realized to the combination of perpendicular slip pair and spring, and rubber elastic pad and gridlines and the high transparent film piece combination of PET that covers cellophane have realized the purpose of accurate pasting foil gage and preventing to paste the face and generate the bubble.
Description
Technical Field
The invention relates to a multifunctional on-shaft strain gauge pasting tool, in particular to a portable multifunctional on-shaft strain gauge pasting tool capable of realizing quick and high-precision mounting of an on-shaft strain gauge.
Background
The strain measurement technology is widely applied to various advantages of high precision and sensitivity, good frequency response, easy realization of digitization and automation, strong environment adaptability and the like. The method provides a very convenient solution for measuring parameters such as shafting power, bending moment, thrust and the like. According to the measurement principle, the strain measurement method belongs to contact measurement, and various strain gauges are required to be adhered to the surface of a shaft according to measurement parameters and a certain rule. One or more strain gauge assemblies are needed to be pasted at the same measuring point position according to a certain direction to complete a specific measuring task, and meanwhile, a certain relative position relation between the strain gauge assemblies and the axis line is needed to be kept, and a plurality of high pasting quality requirements such as no bubbles exist on the pasting surface are also needed to be guaranteed.
At present, strain gauges are pasted manually by technicians according to self technology and experience, the strain gauges installed by different technicians and the installation technical states of different strain gauges installed by the same technician cannot be guaranteed to be consistent, and the measurement accuracy is difficult to guarantee. And the whole operation process is complicated because the requirements of being parallel or perpendicular to the axis center line and the like need to be ensured in the process of pasting the strain gauge. Especially, when the shaft diameter of the measured shaft is larger, the pasting quality and the precision requirement of the strain gauge are more difficult to guarantee. Therefore, in the actual operation process, a considerable part of technicians only observe and directly paste according to own experience by naked eyes, and the mounting quality and the measurement accuracy of the strain gauge are different and have larger difference according to the level of the operators. Especially when the full bridge is adopted for torque measurement, sometimes 4 unidirectional strain gauges are adhered to the direction which is 45 degrees from the axis or 2 half bridge torque strain gauges are adhered to the direction along the axis at the same time, and at the moment, the included angles, the distances and the like between the single strain gauges and the axis and between the strain gauges become extremely difficult to control, so that the installation quality and the measurement precision are more difficult to ensure. Because the existing strain gauge pasting needs to depend on experience and technology accumulation of operators to a great extent, the requirement on the technical level of the operators is high.
Disclosure of Invention
The invention aims to provide a multifunctional on-shaft strain gage pasting tool, which solves the problems.
Technical content, a multi-functional epaxial foil gage bonding tool includes: the magnetic force seat comprises a magnetic force seat body, a magnetic core, a lifting platform, an adjusting nut, a supporting spring, a high-transparency film sheet, a rubber elastic pad and a carrier platform, wherein the magnetic force seat body consists of two supporting seats and a connecting plate, the two supporting seats are symmetrically arranged on the connecting plate, one surface, away from the connecting plate, of each supporting seat is provided with a V-shaped groove, a sliding hole is formed in the connecting plate between the two supporting seats, the magnetic core is arranged in the supporting seat of the magnetic force seat body, the lifting platform is of an inverted T-shaped structure and consists of a sliding block and an adjusting screw rod arranged on the sliding block, and the sliding block is slidably arranged between the two supporting seats so that the adjusting screw rod extends out through the; the support spring is arranged on the adjusting screw rod and is arranged between the connecting plate and the sliding block, and the adjusting nut is arranged on the adjusting screw rod extending out of the connecting plate; the carrier platform is clamped on one surface of the sliding block, which is far away from the connecting plate; the rubber elastic cushion is fixed on the carrier platform, and the high-transparency film sheet is attached to the rubber elastic cushion.
Furthermore, install through the forked tail structure between supporting seat and the sliding block.
Furthermore, elastic buckles are arranged on two sides of the sliding block and extend out of the sliding block to be clamped on the rubber elastic pad together with the carrier platform mounting surface.
Furthermore, clamping grooves corresponding to the elastic buckles are formed in the two sides of the carrier platform.
Furthermore, an embedded installation structure is further arranged between the sliding block and the carrier platform.
Furthermore, an embedding groove is formed in the mounting surface of the sliding block and the carrier platform, an embedding protrusion is arranged on the mounting surface of the carrier platform and the sliding block, and the embedding protrusion is mounted in the embedding groove.
Furthermore, the rubber elastic pad is of a wedge-shaped structure, and an included angle of 10-20 degrees is formed between the mounting surface of the rubber elastic pad and the sliding block and between the mounting surface of the rubber elastic pad and the high-transparency film sheet.
Furthermore, grid lines are arranged on the installation surfaces of the rubber elastic cushion and the high-transparency film sheet; the grid lines and the middle section of the rubber elastic cushion form included angles of 0 degree, 45 degrees, 90 degrees and 135 degrees.
Further, the high-transparency film sheet is a PET high-transparency film sheet coated with cellophane.
Furthermore, the rubber elastic pad is adsorbed by static electricity and a small amount of non-setting adhesive adhered with a PET high-transparency film sheet coated with cellophane.
Has the advantages that: the invention discloses a multifunctional on-shaft strain foil pasting tool which is simple in structure and convenient to install, the purpose of applying acting force along the axis direction when a strain foil is pasted is realized through the combination of a vertical sliding pair and a spring, and the purposes of accurately pasting the strain foil, preventing bubbles from being generated on a pasting surface and quickly dismantling the installing tool are realized through the combination of a rubber elastic pad, grid lines and a PET high-transparency film coated with cellophane.
Drawings
FIG. 1 is a schematic top perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1;
FIG. 3 is a schematic view of the vertical cross-section of FIG. 1;
FIG. 4 is a schematic diagram of the use structure of the invention;
FIG. 5 is a schematic view of a magnetic base;
FIG. 6 is a schematic structural view of the elevating platform;
FIG. 7 is a schematic view of a carrier platform structure;
FIG. 8 is a schematic view of a rubber elastic pad;
1. a magnetic base body; 11. a supporting seat; 12. a connecting plate; 13. a V-shaped groove; 14. a slide hole; 15. dovetail grooves; 2. a magnetic core; 3. a lifting platform; 31. a slider; 32. adjusting the screw rod; 33. elastic buckle; 34. embedding the groove; 35. dovetail protrusions; 4. adjusting the nut; 5. a support spring; 6. a highly transparent film sheet; 7. a rubber elastic pad; 71. Grid lines; 8. a carrier platform; 81. embedding the protrusion; 82. a card slot; 9. a shaft.
Detailed Description
As shown in fig. 1 to 8, a multifunctional on-axis strain gage pasting tool includes: the magnetic base comprises a magnetic base body 1, a magnetic core 2, a lifting platform 3, an adjusting nut 4, a supporting spring 5, a high-transparency film sheet 6, a rubber elastic pad 7 and a carrier platform 8, wherein the magnetic base body 1 consists of a supporting base 11 and a connecting plate 12, the supporting base 11 is provided with two supporting bases 11, the two supporting bases 11 are symmetrically arranged below the connecting plate 12, one surface, away from the connecting plate 12, of each supporting base 11 is provided with a V-shaped groove, a sliding hole 14 is formed in the connecting plate 12 between the two supporting bases 11, the magnetic core 2 is arranged in the supporting base 11 of the magnetic base body 1, the lifting platform 3 is of an inverted T-shaped structure and consists of a sliding block 31 and an adjusting screw 32 arranged on the sliding block 31, and the sliding block 31 is slidably arranged between the two supporting bases 11, so that the adjusting screw 32 extends; the supporting spring 5 is arranged on the adjusting screw rod 32 and is arranged between the connecting plate 12 and the sliding block 31, and the adjusting nut 4 is arranged on the adjusting screw rod 32 extending out of the connecting plate 12; the carrier platform 8 is clamped on one surface of the sliding block 31 far away from the connecting plate 12; the rubber elastic pad 7 is fixed on the carrier platform 8, and the high-transparency film sheet 6 is attached to the rubber elastic pad 7.
Further in this example, the support base 11 and the connecting plate 12 are of an integral structure, and the rubber elastic pad 7 is fixed on the carrier platform 8 by glue.
Further in this example, install through the forked tail structure between supporting seat 11 and the sliding block 31, the forked tail structure is that forked tail protrusion 35 and forked tail recess 15 constitute, is equipped with vertical forked tail recess 15 on two supporting seat 11's the opposite face, be equipped with vertical forked tail protrusion 35 on sliding block 31 both sides and the glide plane of supporting seat 11, forked tail protrusion 35 slidable mounting improves the stability that sliding block 31 reciprocated through the forked tail structure in forked tail recess 15, prevents that sliding block 31 from trembling.
In this example, further, two sides of the sliding block 31 are provided with elastic buckles 33, and the elastic buckles 33 extend out of the sliding block 31 to be clamped on the carrier platform 8 together with the mounting surface of the carrier platform 8; the carrier platform 8 both sides are equipped with the draw-in groove 82 that corresponds with elastic buckle 33, and sliding block 31 fixes carrier platform 8 through elastic buckle 33 to convenient replacement.
Further in this example, an embedded mounting structure is further provided between the sliding block 31 and the carrier platform 8; specifically, the method comprises the following steps: be equipped with embedding recess 34 on sliding block 31 and carrier platform 8's the installation face, be equipped with embedding arch 81 on carrier platform 8 and sliding block 31's the installation face, embedding arch 81 is installed in embedding recess 34, through embedding mounting structure, can fix a position carrier platform 8, guarantees the installation accuracy after the replacement, can also prevent sliding block 31 and carrier platform 8 dislocation from appearing simultaneously, guarantees the stability of pasting the instrument, improves and pastes the quality.
Further in this example, rubber elastic pad 7 is the wedge structure, be 10~20 contained angles between the installation face of rubber elastic pad 7 and sliding block 31 and the installation face of rubber elastic pad 7 and high transparent film piece 6, prevent to appear having the phenomenon of bubble after pasting, improve and paste the quality.
Further in this example, the installation surface of the rubber elastic pad 7 and the high transparent film sheet 6 is provided with grid lines 71; the grid lines 71 are printed on the rubber elastic pad 7, and the grid lines 71 and the section of the rubber elastic pad 7 form included angles of 0 degree, 45 degrees, 90 degrees and 135 degrees.
Further in this example, the high transparency film sheet 6 is a cellophane coated PET high transparency film sheet 6.
Further, the rubber elastic pad 7 adsorbs the PET high-transparency film sheet 6 coated with the cellophane through static electricity and a small amount of adhesive sticker adhesion, so that the adhesion force of the rubber elastic pad 7 on the high-transparency film sheet 6 can be reduced, and the high-transparency film sheet 6 can be conveniently adhered to the multifunctional shaft 9.
Still be equipped with the handle ON the magnetic core 2, can rotate magnetic core 2 through the handle, make supporting seat 11 whether can adsorb ON axle 9, ON and OFF sign have still been carved with to the side of supporting seat 11, through looking over the rotational position of magnetic core 2, judge the operating condition of magnetic core 2.
The process of adopting the strain gauge pasting tool on the multifunctional shaft 9 to paste and install the strain gauge is as follows: directly taking down the carrier platform 8 of the sticking tool, and sticking the PET high transparent film sheet 6 covered with the cellophane at the bottom of the rubber elastic pad 7; positioning by referring to the printed grid lines 71 at the bottom of the rubber elastic pad 7, and adhering the back of the strain gauge to the PET high-transparency film sheet 6 coated with the cellophane according to a required combination form by using a non-dry double-sided adhesive tape; the carrier platform 8 stuck with the strain gauge is installed on the lifting platform 3 of the sticking tool again; rotating the adjusting nut 4 to enable the lifting platform 3 to ascend and compress the supporting spring 5 until the lowest point of the rubber elastic pad 7 is higher than the highest point of the V-shaped groove 13 of the magnetic seat body 1; placing the V-shaped groove 13 of the magnetic base body 1 ON the shaft 9, ensuring that the area of the printed grid line 71 which is adhered with the strain gauge ON the PET high transparent film sheet 6 coated with the cellophane is positioned in the polished and cleaned area ON the shaft 9, and rotating the handle of the magnetic core 2 to an ON position; coating special glue on the surface area of the shaft 9 corresponding to the strain gauge; the adjusting nut 4 is rotated to enable the lifting platform 3 to slowly descend until the lowest point of the rubber elastic pad 7 is in contact with the surface of the shaft 9, and the lifting platform is placed until glue is solidified; pressing two sides of the PET high-transparency film sheet 6 coated with the cellophane, simultaneously rotating the adjusting nut 4 to enable the lifting platform 3 to ascend, and separating the rubber elastic pad 7 from the PET high-transparency film sheet 6 coated with the cellophane; rotating the handle of the magnetic core 2 to an OFF position, and taking down the strain gauge pasting tool on the multifunctional shaft 9; and (3) the PET high transparent film sheet 6 coated with the cellophane is taken off from the back of the strain gauge, and the strain gauge is pasted.
The foregoing is only a preferred form of the invention and it should be noted that similar variations and modifications could be made by those skilled in the art without departing from the principles of the invention and these should be considered within the scope of the invention.
Claims (10)
1. The utility model provides a multi-functional epaxial foil gage instrument of pasting which characterized in that: the method comprises the following steps: the magnetic force seat comprises a magnetic force seat body (1), a magnetic core (2), a lifting platform (3), an adjusting nut (4), a supporting spring (5), a high transparent film sheet (6), a rubber elastic pad (7) and a carrier platform (8), wherein the magnetic force seat body (1) consists of two supporting seats (11) and a connecting plate (12), the two supporting seats (11) are symmetrically arranged on the connecting plate (12), one surface, far away from the connecting plate (12), of each supporting seat (11) is provided with a V-shaped groove, a sliding hole (14) is formed in the connecting plate (12) between the two supporting seats (11), the magnetic core (2) is arranged in the supporting seat (11) of the magnetic force seat body (1), the lifting platform (3) is of an inverted T-shaped structure and consists of a sliding block (31) and an adjusting screw (32) arranged on the sliding block (31), the sliding block (31) is slidably arranged between the two supporting seats (11), so that the adjusting screw rod (32) extends out through a sliding hole (14) in the connecting plate (12); the supporting spring (5) is arranged on the adjusting screw rod (32) and is arranged between the connecting plate (12) and the sliding block (31), and the adjusting nut (4) is arranged on the adjusting screw rod (32) extending out of the connecting plate (12); the carrier platform (8) is clamped on one surface, far away from the connecting plate (12), of the sliding block (31); the rubber elastic pad (7) is fixed on the carrier platform (8), and the high-transparency film sheet (6) is attached to the rubber elastic pad (7).
2. The multifunctional on-axis strain gage pasting tool as claimed in claim 1, wherein: the supporting seat (11) and the sliding block (31) are installed through a dovetail structure.
3. The multifunctional on-axis strain gage pasting tool as claimed in claim 1, wherein: elastic buckles (33) are arranged on two sides of the sliding block (31), and the elastic buckles (33) extend out of the sliding block (31) and are clamped on the rubber elastic pad (7) together with the mounting surface of the carrier platform (8).
4. The multifunctional on-axis strain gage applicator tool of claim 3, wherein: and clamping grooves (82) corresponding to the elastic buckles (33) are formed in the two sides of the carrier platform (8).
5. The multifunctional on-axis strain gage pasting tool as claimed in claim 4, wherein: an embedded installation structure is further arranged between the sliding block (31) and the carrier platform (8).
6. The multifunctional on-axis strain gage applicator tool of claim 5, wherein: be equipped with embedding recess (34) on the mounting surface of sliding block (31) and carrier platform (8), be equipped with embedding arch (81) on the mounting surface of carrier platform (8) and sliding block (31), embedding arch (81) are installed in embedding recess (34).
7. The multifunctional on-axis strain gage pasting tool as claimed in claim 1, wherein: the rubber elastic pad (7) is of a wedge-shaped structure, and an included angle of 10-20 degrees is formed between the mounting surface of the rubber elastic pad (7) and the sliding block (31) and the mounting surface of the rubber elastic pad (7) and the high-transparency film sheet (6).
8. The multifunctional on-axis strain gage applicator tool of claim 7, wherein: grid lines (71) are arranged on the mounting surfaces of the rubber elastic cushion (7) and the high-transparency film sheet (6); the grid lines (71) and the middle section of the rubber elastic pad (7) form included angles of 0 degree, 45 degrees, 90 degrees and 135 degrees.
9. The multifunctional on-axis strain gage pasting tool as claimed in claim 1, wherein: the high-transparency film sheet (6) is a PET high-transparency film sheet (6) coated with cellophane.
10. The multifunctional on-axis strain gage applicator tool of claim 9, wherein: the rubber elastic pad (7) adsorbs the PET high-transparency film sheet (6) coated with the cellophane through static electricity and a small amount of adhesive sticker adhesion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110371176.8A CN113107940B (en) | 2021-04-07 | 2021-04-07 | Multifunctional on-shaft strain gauge pasting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110371176.8A CN113107940B (en) | 2021-04-07 | 2021-04-07 | Multifunctional on-shaft strain gauge pasting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113107940A true CN113107940A (en) | 2021-07-13 |
| CN113107940B CN113107940B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110371176.8A Active CN113107940B (en) | 2021-04-07 | 2021-04-07 | Multifunctional on-shaft strain gauge pasting tool |
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| CN (1) | CN113107940B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115235524A (en) * | 2022-08-17 | 2022-10-25 | 中国工程物理研究院总体工程研究所 | Novel sensor compresses tightly device |
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| CN113107940B (en) | 2024-03-19 |
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