CN210346954U - Integrated three-dimensional force sensor - Google Patents
Integrated three-dimensional force sensor Download PDFInfo
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- CN210346954U CN210346954U CN201920954230.XU CN201920954230U CN210346954U CN 210346954 U CN210346954 U CN 210346954U CN 201920954230 U CN201920954230 U CN 201920954230U CN 210346954 U CN210346954 U CN 210346954U
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Abstract
The utility model discloses an integrated three-dimensional force sensor, which comprises an elastic main body and a resistance strain gauge; the elastic main body comprises an upper end face, a strain beam and a lower end face, and the upper end face and the lower end face are connected through the strain beam; the resistance strain gauge is provided with three groups, namely a resistance strain gauge group x, a resistance strain gauge group y and a resistance strain gauge group z; the resistance strain sheet group Z is adhered to the strain beam, and the veneering of the resistance strain sheet group Z is parallel to the Z axis; the resistance strain sheet group X is adhered to the strain beam, and the veneering of the resistance strain sheet group X is vertical to the X axis; the resistance strain sheet group Y is adhered to the strain beam, and the veneering of the resistance strain sheet group Y is perpendicular to the Y axis. The utility model discloses an integrative three-dimensional force transducer has advantages such as simple structure, with low costs, precision height, measuring range are wide, long service life, simple to operate.
Description
Technical Field
The utility model belongs to the technical field of the sensor, concretely relates to three-dimensional force transducer of integral type.
Background
The sensor is a detection device which can sense the measured information and convert the sensed information into an electric signal or other information in a required form according to a certain rule to output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like. The resistance sensor is a device that converts physical quantities to be measured, such as displacement, deformation, force, acceleration, humidity, temperature, etc., into resistance values, and mainly includes resistance strain type, piezoresistive type, thermal resistance, thermosensitive, gas-sensitive, humidity-sensitive, etc. At present, domestic resistance strain type sensor products generally have low reliability and poor performance precision, and are in a disadvantage in the competition of the global sensor industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three-dimensional force transducer of integral type to solve the problem of the low load in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an integrated three-dimensional force sensor comprises an elastic main body and a resistance strain gauge; the elastic main body comprises an upper end face, four strain beams and a lower end face, wherein the upper end face and the lower end face are connected through the strain beams, the four strain beams are cuboid, and the arrangement directions of the four strain beams are in a regular tetragonal shape; the resistance strain gauge is provided with three groups, namely a resistance strain gauge group x, a resistance strain gauge group y and a resistance strain gauge group z; the resistance strain sheet group Z is adhered to the strain beam, and the veneering of the resistance strain sheet group Z is parallel to the Z axis; the resistance strain sheet group X is adhered to the strain beam, and the veneering of the resistance strain sheet group X is vertical to the X axis; the resistance strain sheet group Y is adhered to the strain beam, and the veneering of the resistance strain sheet group Y is vertical to the Y axis; the resistance strain gauge group x and the resistance strain gauge group y are adjacent and adhered to the four strain beams; the resistance strain gauge group x and the resistance strain gauge group y are adhered to two strain beams, the adhering surfaces of the two strain beams are opposite, and each adhering surface is in a symmetrical relation relative to the center of the lower end surface; correspondingly, four pieces of the resistance strain gauge group z are pasted on each strain beam, the pasting surfaces of the four pieces of the resistance strain gauge group z are opposite, two pieces of the resistance strain gauge group z are pasted on each pasting surface in a transverse and vertical mode, and the pasting surfaces of the two pieces of the resistance strain gauge group z are not in the same plane with the resistance strain gauge group x and the resistance strain gauge group y.
Further, the resistance strain gauge group z is adhered to the central position of the length of each strain beam; the resistance strain gauge group x is adhered to the position, close to the lower end face, of each strain beam; and the resistance strain gauge group y is adhered to the position of each strain beam close to the lower end face.
Further, the upper end face is provided with an upper fixing hole which is equally divided, and correspondingly, the lower end face is provided with a lower fixing hole which is equally divided.
Furthermore, the elastic main body material is integrally formed by adopting aviation aluminum alloy 7075-T651.
The utility model discloses an integrative three-dimensional force transducer has advantages such as simple structure, with low costs, precision height, measuring range are wide, long service life, simple to operate. The main body material is integrally processed and formed by aviation aluminum alloy 7075-T651, the surface is subjected to hard anodizing treatment, the strength is high, the corrosion resistance is strong, the mechanical property is good, the sensor can work under severe conditions, and the miniaturization, the integration and the variety diversification are easy to realize in the aspect of the structure.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a right side view of the present invention;
in the figure: 1-upper fixed hole, 2-upper end face, 3-strain beam, 4-resistance strain gauge group x, 5-lower fixed hole, 6-lower end face, 7-resistance strain gauge group z and 8-resistance strain gauge group y.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
A three-dimensional force sensor is a sensor that can measure components of force in three directions simultaneously. The three-dimensional force sensor realizes the stability of sensor output through the structural design of the elastic body and the reasonable patch layout of the resistance strain gauge. The system is mainly used for robot manufacturing, automation equipment, intelligent control automatic control equipment, intelligent machines, material detection equipment, material stress state analysis, stress analysis of parts in the working process and other occasions.
Referring to fig. 1-3, an integrated three-dimensional force sensor includes an elastic body and a resistance strain gauge; the elastic main body comprises an upper end face 2, strain beams 3 and a lower end face 6, the upper end face 2 and the lower end face 6 are connected by the strain beams 3, four strain beams 3 are arranged and are cuboid, and the arrangement directions of the four strain beams 3 are in a regular tetragonal shape; the resistance strain gauge is provided with three groups of resistance strain gauge groups, namely a resistance strain gauge group x4, a resistance strain gauge group y8 and a resistance strain gauge group z 7; the resistance strain gauge group Z7 is adhered to the strain beam 3, and the attaching surface of the resistance strain gauge group Z7 is parallel to the Z axis; the resistance strain sheet group X4 is adhered to the strain beam 3, and the adhering surface of the resistance strain sheet group X4 is vertical to the X axis; the resistance strain sheet group Y8 is adhered to the strain beam 3, and the adhering surface of the resistance strain sheet group Y8 is vertical to the Y axis; the resistance strain gage group x4 and the resistance strain gage group y8 are adjacently adhered to the four strain beams 3; the resistance strain gauge group x4 and the resistance strain gauge group y8 are adhered to each strain beam 3, the adhering surfaces of the two pieces are opposite, and each adhering surface is in a symmetrical relation relative to the center of the lower end surface 6; correspondingly, the resistance strain gauge group z7 is adhered with four pieces on each strain beam 3, the adhering surfaces of the four pieces are opposite to each other, two pieces are adhered on each adhering surface transversely and vertically, and the adhering surfaces of the two pieces are not on the same plane with the resistance strain gauge group x4 and the resistance strain gauge group y 8. The resistance strain sheet group z7 is adhered to the central position of the length of each strain beam 3; the resistance strain sheet group x4 is adhered to the position of each strain beam 3 close to the lower end surface 6; the resistance strain sheet group y8 is adhered to the position of each strain beam 3 close to the lower end surface 6. The upper end face 2 is provided with equally divided upper fixing holes 1, and correspondingly, the lower end face 6 is provided with equally divided lower fixing holes 5. The elastic main body material is integrally formed by adopting aviation aluminum alloy 7075-T651.
The integrated three-dimensional force sensor is fixed on a measured object through upper and lower mounting surface screws and positioning pins, when the measured object is stressed, the elastic main body strain beam can be elastically deformed, so that the strain beam generates strain, the resistance strain gauge adhered to the strain beam converts the stress of the measured object into resistance change through the elastic strain gauge, the resistance change is converted into voltage output through a Wheatstone bridge circuit, the voltage output is obtained through a display instrument, and finally the stress size and the stress direction of the measured object are generated through data analysis and processing. The resistance strain gauge group Z (a transverse and vertical sticking strain gauge group bridge is adopted, the veneering is parallel to the Z direction) is used for measuring the stress in the Z direction, the resistance strain gauge group X (the veneering is vertical to the X direction) is used for measuring the stress in the X direction, and the resistance strain gauge group Y (the veneering is vertical to the Y direction) is used for measuring the stress in the Y direction.
The utility model discloses an integrative three-dimensional force transducer has advantages such as simple structure, with low costs, precision height, measuring range are wide, long service life, simple to operate. The main body material is integrally processed and formed by aviation aluminum alloy 7075-T651, the surface is subjected to hard anodizing treatment, the strength is high, the corrosion resistance is strong, the mechanical property is good, the sensor can work under severe conditions, and the miniaturization, the integration and the variety diversification are easy to realize in the aspect of the structure.
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 (4)
1. An integrated three-dimensional force sensor, characterized in that: the device comprises an elastic main body and a resistance strain gauge; the elastic main body comprises an upper end face (2), strain beams (3) and a lower end face (6), the upper end face (2) and the lower end face (6) are connected through the strain beams (3), the strain beams (3) are four and are cuboid, and the arrangement directions of the four strain beams (3) are square; the resistance strain gauge is provided with three groups, namely a resistance strain gauge group x (4), a resistance strain gauge group y (8) and a resistance strain gauge group z (7); the resistance strain sheet group Z (7) is adhered to the strain beam (3), and the attaching surface of the resistance strain sheet group Z (7) is parallel to the Z axis; the resistance strain sheet group X (4) is adhered to the strain beam (3), and the veneering of the resistance strain sheet group X (4) is vertical to the X axis; the resistance strain sheet group Y (8) is adhered to the strain beam (3), and the veneering of the resistance strain sheet group Y (8) is vertical to the Y axis; the resistance strain gauge group x (4) and the resistance strain gauge group y (8) are adjacent and adhered to the four strain beams (3); two pieces of the resistance strain gauge group x (4) and the resistance strain gauge group y (8) are adhered to each strain beam (3), the adhering surfaces of the two pieces are opposite, and each adhering surface is in a symmetrical relation relative to the center of the lower end surface (6); correspondingly, four pieces of resistance strain gauge groups z (7) are pasted on each strain beam (3), the pasting surfaces of the four pieces of resistance strain gauge groups z are opposite, two pieces of resistance strain gauge groups x (4) and y (8) are pasted on each pasting surface in a transverse and vertical mode, and the pasting surfaces of the four pieces of resistance strain gauge groups are not on the same plane.
2. The integrated, three-dimensional force sensor of claim 1, wherein: the resistance strain sheet group z (7) is adhered to the central position of the length of each strain beam (3); the resistance strain gauge group x (4) is adhered to the position, close to the lower end face (6), of each strain beam (3); and the resistance strain sheet group y (8) is adhered to the position, close to the lower end surface (6), of each strain beam (3).
3. The integrated, three-dimensional force sensor of claim 2, wherein: the upper end face (2) is provided with equally-divided upper fixing holes (1), and correspondingly, the lower end face (6) is provided with equally-divided lower fixing holes (5).
4. The integrated, three-dimensional force sensor of claim 1, wherein: the elastic main body material is integrally formed by adopting aviation aluminum alloy 7075-T651.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920954230.XU CN210346954U (en) | 2019-06-24 | 2019-06-24 | Integrated three-dimensional force sensor |
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| CN201920954230.XU CN210346954U (en) | 2019-06-24 | 2019-06-24 | Integrated three-dimensional force sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811709A (en) * | 2020-07-16 | 2020-10-23 | 内蒙古第一机械集团股份有限公司 | Four-column torque sensor |
| CN113124936A (en) * | 2021-04-21 | 2021-07-16 | 齐鲁工业大学 | Highway online health monitoring sensor and preparation method thereof |
-
2019
- 2019-06-24 CN CN201920954230.XU patent/CN210346954U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111811709A (en) * | 2020-07-16 | 2020-10-23 | 内蒙古第一机械集团股份有限公司 | Four-column torque sensor |
| CN113124936A (en) * | 2021-04-21 | 2021-07-16 | 齐鲁工业大学 | Highway online health monitoring sensor and preparation method thereof |
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