CN113107940B - Multifunctional on-shaft strain gauge pasting tool - Google Patents
Multifunctional on-shaft strain gauge pasting tool Download PDFInfo
- Publication number
- CN113107940B CN113107940B CN202110371176.8A CN202110371176A CN113107940B CN 113107940 B CN113107940 B CN 113107940B CN 202110371176 A CN202110371176 A CN 202110371176A CN 113107940 B CN113107940 B CN 113107940B
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- rubber elastic
- strain gauge
- elastic pad
- sliding block
- transparency film
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- 239000011521 glass Substances 0.000 claims abstract description 7
- 229920000298 Cellophane Polymers 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000007639 printing Methods 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 12
- 230000005611 electricity Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 239000010409 thin film Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a multifunctional on-shaft strain gauge pasting tool, which comprises: the magnetic force seat comprises a magnetic force seat body, a magnetic core, a lifting platform, adjusting nuts, supporting springs, high-transparency film pieces, rubber elastic pads and a carrier platform, wherein the magnetic force seat body consists of supporting seats and connecting plates, the supporting seats are symmetrically arranged on the connecting plates, the lifting platform is arranged between the two supporting seats, the supporting springs are arranged between the connecting plates and sliding blocks, and the adjusting nuts are arranged on the lifting platform; the carrier platform is clamped on the sliding block; the rubber elastic pad is fixed on the carrier platform, and the high-transparency film piece is attached to the rubber elastic pad. The combined type strain gauge is simple in structure and convenient to install, the purpose of applying acting force along the axis direction when the strain gauge is adhered is achieved through the combination of the vertical sliding pair and the spring, and the purpose of accurately adhering the strain gauge and preventing bubbles from being generated on the adhering surface is achieved through the combination of the rubber elastic pad, the grid lines and the PET high-transparency film sheet covered with glass paper.
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 rapid and high-precision installation of an on-shaft strain gauge.
Background
The strain measurement technology is widely applied by virtue of the advantages of high precision and sensitivity, good frequency response, easy realization of digitization, 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 gages are required to be stuck to the surface of a shaft according to certain rules according to measurement parameters. One or a plurality of strain gauge combinations are needed to be stuck at the same measuring point position according to a certain direction to finish a specific measuring task, and meanwhile, a certain relative position relation between the strain gauge combination and the axis is also needed to be ensured, and a plurality of higher sticking quality requirements such as no bubbles on a sticking surface are also needed.
At present, strain gauge sticking is finished manually by virtue of the technology and experience of technicians, the mounting technical states of strain gauges mounted by different technicians and different strain gauges mounted by the same technician cannot be guaranteed to be consistent, and measurement accuracy is difficult to guarantee. And the whole operation process is complicated due to the requirement of ensuring the parallelism or the perpendicularity with the central line of the shaft in the process of pasting the strain gauge. Especially when the axle diameter of the measured axle is larger, the requirements on the pasting quality and the precision of the strain gauge are more difficult to ensure. Therefore, in the actual operation process, a considerable part of technicians directly paste the strain gauge according to self experience and naked eye observation, and the mounting quality and the measuring accuracy of the strain gauge are greatly different according to the level of operators. In particular, when a full bridge is used for torque measurement, sometimes 4 unidirectional strain gages are required to be stuck at the same time in the direction of 45 degrees with the axis or 2 half-bridge torque strain gages are required to be stuck at the same time in the direction of the axis, at this time, the included angles and distances between a single strain gage and the axis, between the strain gages and the like become extremely difficult to control, and the mounting quality and the measurement accuracy are more difficult to ensure. The strain gauge sticking is required to be greatly dependent on experience and technical accumulation of operators at present, so that the technical level requirements of the operators are high.
Disclosure of Invention
The invention aims to provide a multifunctional on-shaft strain gauge pasting tool which solves the problems.
The technical content is that a multi-functional epaxial strain gauge pastes instrument 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 transparent film piece, a rubber elastic pad and a carrier platform, wherein the magnetic force seat body is composed of two supporting seats and a connecting plate, the two supporting seats are symmetrically arranged on the connecting plate, a V-shaped groove is formed in one surface, far away from the connecting plate, of each supporting seat, 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 is composed 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 sliding holes in the connecting plate; the supporting 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 pad is fixed on the carrier platform, and the high-transparency film piece is attached to the rubber elastic pad.
Further, the support seat and the sliding block are installed through a dovetail structure.
Further, elastic buckles are arranged on two sides of the sliding block, and extend out of the sliding block and are clamped on the rubber elastic pad with the carrier platform mounting surface.
Further, clamping grooves corresponding to the elastic buckles are formed in two sides of the carrier platform.
Further, an embedded mounting structure is further arranged between the sliding block and the carrier platform.
Furthermore, the mounting surfaces of the sliding block and the carrier platform are provided with embedded grooves, the mounting surfaces of the carrier platform and the sliding block are provided with embedded protrusions, and the embedded protrusions are arranged in the embedded grooves.
Further, the rubber elastic pad is of a wedge-shaped structure, and an included angle of 10-20 degrees is formed between the rubber elastic pad and the installation surface of the sliding block and between the rubber elastic pad and the installation surface of the high-transparency film piece.
Further, grid lines are arranged on the mounting surfaces of the rubber elastic pad and the high-transparency film piece; the cross section of the grid lines and the middle section of the rubber elastic pad 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 electrostatic and a small amount of PET high transparent film sheet coated with cellophane is adhered by adhesive.
The beneficial effects are that: the invention discloses a multifunctional on-shaft strain gauge pasting tool, which is simple in structure and convenient to install, the purpose of applying acting force along the axis direction when a strain gauge is pasted is achieved through the combination of a vertical sliding pair and a spring, and the purpose of accurately pasting the strain gauge, preventing bubbles from being generated on the pasting surface and rapidly dismantling the installation tool is achieved through the combination of a rubber elastic pad, grid lines and a PET high transparent film sheet coated with cellophane.
Drawings
FIG. 1 is a schematic top perspective view of the invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the vertical cross-section structure of FIG. 1;
FIG. 4 is a schematic diagram of the use structure of the invention;
FIG. 5 is a schematic view of the structure of the magnetic base body;
FIG. 6 is a schematic view of a lifting platform;
FIG. 7 is a schematic view of a carrier platform structure;
FIG. 8 is a schematic view of a rubber elastic pad structure;
1. a magnetic base body; 11. a support base; 12. a connecting plate; 13. a V-shaped groove; 14. a sliding hole; 15. dovetail grooves; 2. a magnetic core; 3. a lifting platform; 31. a sliding block; 32. adjusting a screw; 33. an elastic buckle; 34. embedding the groove; 35. dovetail protrusions; 4. an adjusting nut; 5. a support spring; 6. a highly transparent sheet of film; 7. a rubber elastic pad; 71. Grid lines; 8. a carrier platform; 81. embedding the bulge; 82. a clamping groove; 9. a shaft.
Detailed Description
As shown in fig. 1-8, a multifunctional on-axis strain gage attachment tool comprising: 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 piece 6, a rubber elastic pad 7 and a carrier platform 8, wherein the magnetic force seat body 1 is composed of a supporting seat 11 and a connecting plate 12, the two supporting seats 11 are symmetrically arranged below the connecting plate 12, a V-shaped groove is formed in one surface, far away from the connecting plate 12, of the supporting seat 11, 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 is composed 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 seats 11, so that the adjusting screw 32 extends out through the sliding hole 14 in the connecting plate 12; the supporting spring 5 is arranged on the adjusting screw rod 32 and 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 transparent film sheet 6 is attached to the rubber elastic pad 7.
Further in this example, the support base 11 and the connection plate 12 are integrally formed, and the rubber elastic pad 7 is fixed on the carrier platform 8 by using 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 protruding 35 and forked tail recess 15 are constituteed, is equipped with vertical forked tail recess 15 on the opposite face of two supporting seats 11, be equipped with vertical forked tail protruding 35 on the sliding surface of sliding block 31 both sides and supporting seat 11, forked tail protruding 35 slidable mounting improves the stability of sliding block 31 reciprocates through the forked tail structure in forked tail recess 15, prevents that sliding block 31 from shaking.
Further in this example, elastic buckles 33 are provided on both sides of the sliding block 31, and the elastic buckles 33 extend out of the sliding block 31 and are clamped on the carrier platform 8 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 elasticity buckle 33, and the sliding block 31 is fixed carrier platform 8 through elasticity buckle 33 to the 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 mounting surfaces of the sliding block 31 and the carrier platform 8 are provided with the embedded grooves 34, the mounting surfaces of the carrier platform 8 and the sliding block 31 are provided with the embedded protrusions 81, the embedded protrusions 81 are arranged in the embedded grooves 34, the carrier platform 8 can be positioned through the embedded mounting structure, the mounting precision after replacement is ensured, meanwhile, dislocation of the sliding block 31 and the carrier platform 8 can be prevented, the stability of the pasting tool is ensured, and the pasting quality is improved.
Further in this example, the rubber elastic pad 7 is wedge-shaped 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 paste the back and appear the phenomenon of bubble, improve the quality of pasting.
Further in this example, the rubber elastic pad 7 and the mounting surface of the high transparent film sheet 6 are provided with grid lines 71; the grid lines 71 are printed on the rubber elastic pad 7, and the grid lines 71 form angles of 0 DEG, 45 DEG, 90 DEG and 135 DEG with the section of the rubber elastic pad 7.
Further in this example, the highly transparent film sheet 6 is a cellophane coated PET highly transparent film sheet 6.
Further in this example, the rubber elastic pad 7 adsorbs the high transparent film sheet 6 coated with cellophane by electrostatic and combining a small amount of non-setting adhesive, so that the adhesion of the rubber elastic pad 7 to the high transparent film sheet 6 can be reduced, and the high transparent film sheet 6 is conveniently adhered to the multifunctional shaft 9.
Still be equipped with the handle ON the magnetic core 2, can rotate the magnetic core 2 through the handle, make supporting seat 11 can adsorb ON the axle 9, the side of supporting seat 11 still has carved with ON and OFF sign, through looking over the rotation position of magnetic core 2, judges the operating condition of magnetic core 2.
The process of attaching and installing the strain gauge by adopting the strain gauge attaching tool on the multifunctional shaft 9 is as follows: directly taking down the carrier platform 8 of the pasting tool, and pasting the PET high transparent film sheet 6 covered with glass paper on the bottom of the rubber elastic pad 7; positioning by referring to the printing 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 cellophane in a required combination mode by using self-adhesive double-sided tape; the carrier platform 8 with the strain gauge adhered is reinstalled on the lifting platform 3 of the adhering tool; the adjusting nut 4 is rotated to enable the lifting platform 3 to ascend, and the supporting spring 5 is compressed to the lowest point of the rubber elastic pad 7 which 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 seat body 1 ON the shaft 9, ensuring that the region of the printed grid line 71, ON which the strain gauge is stuck, ON the PET high-transparency film sheet 6 coated with glass paper is positioned in the polished and cleaned region ON the shaft 9, and rotating the handle of the magnetic core 2 to the 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 contacts with the surface of the shaft 9, and the glue is placed until solidification; pressing two sides of the PET high-transparency film sheet 6 covered with the glass paper, 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 covered with the glass paper; rotating the handle of the magnetic core 2 to the OFF position, and taking down the strain gauge sticking tool on the multifunctional shaft 9; and (5) removing the PET high-transparency film sheet 6 coated with the cellophane from the back of the strain gauge, and completing the strain gauge pasting work.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that numerous similar modifications and adaptations could be made by those skilled in the art without departing from the principles of the invention, which would be considered within the scope of the invention.
Claims (1)
1. The utility model provides a multi-functional epaxial strain gauge bonding tool which characterized in that: comprising the following steps: the magnetic force seat comprises a magnetic force seat body (1), magnetic cores (2), a lifting platform (3), adjusting nuts (4), supporting springs (5), high-transparency thin films (6), rubber elastic pads (7) and a carrier platform (8), wherein the magnetic force seat body (1) is composed of two supporting seats (11) and a connecting plate (12), the two supporting seats (11) are symmetrically arranged on the connecting plate (12), V-shaped grooves are formed in one surface, far away from the connecting plate (12), of each supporting seat (11), sliding holes (14) are formed in the connecting plate (12) between the two supporting seats (11), the magnetic cores (2) are arranged in the supporting seats (11) of the magnetic force seat body (1), the lifting platform (3) is of an inverted-T-shaped structure and is composed of sliding blocks (31) and adjusting screws (32) arranged on the sliding blocks (31), and the sliding blocks (31) are arranged between the two supporting seats (11) in a sliding mode, and enable the adjusting screws (32) to extend out through the sliding holes (14) on the connecting plate (12). The supporting spring (5) is arranged on the adjusting screw (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 (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);
the support seat (11) and the sliding block (31) are installed through a dovetail structure;
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) with the mounting surface of the carrier platform (8);
clamping grooves (82) corresponding to the elastic buckles (33) are formed in two sides of the carrier platform (8);
an embedded mounting structure is further arranged between the sliding block (31) and the carrier platform (8);
an embedded groove (34) is formed in the mounting surfaces of the sliding block (31) and the carrier platform (8), an embedded protrusion (81) is formed in the mounting surfaces of the carrier platform (8) and the sliding block (31), and the embedded protrusion (81) is arranged in the embedded groove (34);
the rubber elastic pad (7) is of a wedge-shaped structure, and an included angle of 10-20 degrees is formed between the rubber elastic pad (7) and the installation surface of the sliding block (31) and between the rubber elastic pad (7) and the installation surface of the high-transparency film piece (6);
grid lines (71) are arranged on the mounting surfaces of the rubber elastic pad (7) and the high-transparency film piece (6); the cross sections of the grid lines (71) and the rubber elastic pad (7) form included angles of 0 degree, 45 degrees, 90 degrees and 135 degrees;
the high-transparency film sheet (6) is a PET high-transparency film sheet (6) coated with cellophane;
the rubber elastic pad (7) adsorbs the PET high-transparency film sheet (6) coated with the cellophane by static electricity and combining a small amount of non-setting adhesive;
the process of attaching and installing the strain gauge by adopting the strain gauge attaching tool on the multifunctional shaft (9) is as follows: directly taking down a carrier platform (8) of the pasting tool, and pasting a PET high-transparency film sheet (6) coated with cellophane on the bottom of a rubber elastic pad (7); positioning by referring to the printing grid lines (71) at the bottom of the rubber elastic pad (7), and adhering the back surface of the strain gauge to the PET high-transparency film sheet (6) coated with cellophane in a required combination mode by using self-adhesive double-sided adhesive; the carrier platform (8) with the strain gauge adhered is reinstalled on the lifting platform (3) of the adhering tool; the adjusting nut (4) is rotated to enable the lifting platform (3) to ascend, and the supporting spring (5) is compressed to the lowest point of the rubber elastic pad (7) which is higher than the highest point of the V-shaped groove (13) of the magnetic seat body (1); the V-shaped groove (13) of the magnetic seat body (1) is arranged ON the shaft (9), meanwhile, the area of the printed grid line (71) which is adhered with the strain gauge ON the PET high-transparency film sheet (6) covered with cellophane is ensured to be positioned in the polished and cleaned area ON the shaft (9), and the handle of the magnetic core (2) is rotated to the 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 rubber is placed until the glue is solidified; pressing two sides of the PET high-transparency film sheet (6) covered with the glass paper, simultaneously rotating the adjusting nuts (4) to enable the lifting platform (3) to ascend, and separating the rubber elastic pad (7) from the PET high-transparency film sheet (6) covered with the glass paper; rotating the handle of the magnetic core (2) to an OFF position, and taking down a strain gauge sticking tool on the multifunctional shaft (9); and (3) removing the PET high-transparency film sheet (6) covered with the cellophane from the back of the strain gauge, and completing the strain gauge pasting work.
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 CN113107940A (en) | 2021-07-13 |
| CN113107940B true 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 |
Country Status (1)
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| CN (1) | CN113107940B (en) |
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| CN113107940A (en) | 2021-07-13 |
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