CN210243052U - Integrated square structure two-component force sensor - Google Patents
Integrated square structure two-component force sensor Download PDFInfo
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- CN210243052U CN210243052U CN201921427022.0U CN201921427022U CN210243052U CN 210243052 U CN210243052 U CN 210243052U CN 201921427022 U CN201921427022 U CN 201921427022U CN 210243052 U CN210243052 U CN 210243052U
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Abstract
The utility model relates to the technical field of sensor design, and provides an integral type square structure two-component force transducer, aiming at solving the problems that the traditional square multidimensional force transducer machining installation and other processes are complicated, and the sensor force measurement two-component direction precision is not accurate enough; the side walls of the two ends of the elastic body workpiece are respectively provided with a first hollow plum blossom hole, a second hollow plum blossom hole, a third hollow plum blossom hole and a fourth hollow plum blossom hole, and the hollow plum blossom holes are respectively poked on four surfaces of the fourth hollow plum blossom hole in an up-and-down symmetrical mode. The first hollow plum blossom hole, the second hollow plum blossom hole, the third hollow plum blossom hole and the fourth hollow plum blossom hole are vertically arranged at an angle of 90 degrees, and the inner walls of the first hollow plum blossom hole and the second hollow plum blossom hole are strain beam areas. The utility model discloses the two minutes directions atress that are particularly useful for fields such as aerospace, robot, car and medical research are measured, have higher social use value and application prospect.
Description
Technical Field
The utility model relates to a sensor design technical field, concretely relates to square structure two component force sensor of integral type.
Background
The conventional load cell is a single force, i.e., a one-dimensional force, and the force direction of the load cell is only one direction. If one single-dimensional force sensor is respectively arranged on the two-dimensional coordinates, the measurement of the two-dimensional force can be realized. In actual design and manufacture, due to application requirements, two independent single-dimensional force sensors are rarely or not allowed to be used for measuring two-dimensional force, the two single-dimensional force sensors are structurally combined into a whole, then component forces in two directions are respectively calculated through processing modes of structures, circuits, software and the like, and then vector operation is carried out to calculate components and directions thereof.
The traditional square multi-dimensional force sensor consists of a square workpiece and a rectangular beam workpiece. The processes of machining and mounting workpieces are complex, and the accuracy of the force measurement in the bisection direction of the sensor is not accurate enough.
The patent with the publication number of CN208984267U discloses a six weight force sensor, it includes top adaptor (1), measuring component (2), bottom adaptor (3), sensor structure through the syllogic connection, the protection to measuring component (2) has been guaranteed, avoided the direct action of external load on measuring component (2), dust has also been avoided simultaneously, the splash into of water droplet, help promoting the protection grade of sensor, through the screw of connecting usefulness, the pin is to the effective transmission of load, can partly reduce the impact of external load to measuring element, improve the life of sensor, but the device exists the deviation on the two minutes sensor precision and the degree of difficulty on the production technology. To this end, we propose a one-piece square structure two-component force sensor.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a square structure two component force sensor of integral type has overcome the not enough of prior art, reasonable in design, and compact structure aims at solving traditional square multidimension force sensor and comprises square work piece and rectangular beam work piece two parts, and the technology such as work piece machining installation is more complicated, the not accurate problem of sensor dynamometry bipartition direction precision.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the integrated square-structure two-component force sensor comprises a square cylinder and elastomer workpieces integrally formed at two ends of the square cylinder, wherein the elastomer workpieces are of rectangular structures, the middle part of the square cylinder is provided with a circular through hole penetrating through the two elastomer workpieces, and the side wall of one elastomer workpiece is provided with a PCB mounting groove for mounting a PCB;
the elastic body workpiece comprises an elastic body workpiece and is characterized in that the side walls of two ends of the elastic body workpiece are respectively provided with a first hollowed-out plum blossom hole and a second hollowed-out plum blossom hole, the first hollowed-out plum blossom hole and the second hollowed-out plum blossom hole are vertically arranged at 90 degrees, the inner walls of the first hollowed-out plum blossom hole and the second hollowed-out plum blossom hole are strain beam areas, and strain gauges are adhered to the inner walls of the strain beam areas through protective glue.
Furthermore, a perforation step is integrally formed on the inner side of the elastomer workpiece on the side of the PCB mounting groove, a signal wire outlet hole is formed in the perforation step in a penetrating mode, and the signal wire outlet hole is connected with the PCB mounting groove in a penetrating mode.
Furthermore, the circular through hole is communicated with the first hollow plum blossom hole and the second hollow plum blossom hole.
Furthermore, four threaded mounting holes are formed in the side walls, back to back, of the two elastomer workpieces in a matrix mode.
Furthermore, the transverse sectional area of the elastomer workpiece is larger than that of the square column.
Furthermore, one side of the square cylinder, which is close to the PCB plate mounting groove, is respectively provided with a wire inlet threading hole and a wire outlet threading hole which are communicated with the PCB plate mounting groove, and the wire inlet threading hole and the wire outlet threading hole are respectively positioned on opposite sides of the square cylinder.
(III) advantageous effects
The embodiment of the utility model provides a two component force sensor of square structure of integral type possesses following beneficial effect:
1. through integrated into one piece's square cylinder and two elastomer work piece settings, can mould direct forming, the installation of being convenient for on the one hand, on the other hand processing technology is simple, cooperates two fretwork quincuncial holes that set up perpendicularly, has effectively reduced the crosstalk between two branches each other, guarantees the measuring accurate.
2. Through two fretwork quincuncial holes that set up perpendicularly, combine the circular through-hole that link up each other, combine the screw thread mounting hole, be convenient for on the one hand the installation on equipment, on the other hand can effectual protection delicate sensor element, extension equipment life.
Drawings
The above features, technical features, advantages and implementations of the one-piece, square-construction, two-component force sensor will be further described in the following, in a clearly understandable manner, with reference to the accompanying drawings, which illustrate preferred embodiments.
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the three-dimensional structure of the present invention;
fig. 3 is a schematic plan view of a side view of the present invention;
FIG. 4 is a side view of the three-dimensional structure of the present invention;
fig. 5 is a schematic plan view of a second side view of the present invention;
fig. 6 is a schematic top view of the present invention.
In the figure: the device comprises a square column body 1, an elastomer workpiece 2, a first hollowed plum blossom hole 3, a second hollowed plum blossom hole 4, a circular through hole 5, a thread mounting hole 6, a signal wire outlet hole 7, a PCB plate mounting groove 8, a wire inlet threading hole 9, a perforation step 10 and a wire outlet threading hole 11.
Detailed Description
The invention will be further described with reference to the following figures 1-6 and examples:
integral type square structure two-component force sensor, including square cylinder 1 and 1 both ends integrated into one piece's of square cylinder elastomer work piece 2, elastomer work piece 2 is the rectangle structure, the installation of being convenient for, and the circular through-hole 5 that runs through two elastomer work pieces 2 is seted up at the middle part of square cylinder 1, and circular through-hole 5 is used for the sensor workpiece to install on equipment, offers the PCB plate mounting groove 8 that is used for installing the PCB board on one of them elastomer work piece 2's the lateral wall for embedded installation PCB board, realize the protection on the one hand, the design of on the other hand embedding is convenient for install.
In this embodiment, as shown in fig. 1-2, the side walls of the two ends of the elastic body workpiece 2 are respectively provided with a first hollow plum blossom hole 3 and a second hollow plum blossom hole 4, the first hollow plum blossom hole 3 and the second hollow plum blossom hole 4 are vertically arranged at 90 °, the inner walls of the first hollow plum blossom hole 3 and the second hollow plum blossom hole 4 are strain beam areas, and strain gauges are adhered to the inner walls of the strain beam areas through protective adhesives, so that the strain gauges arranged at the strain beam areas have two directional force values, namely, two directions of Fx and Fy are stressed due to the vertical arrangement of the first hollow plum blossom hole 3 and the second hollow plum blossom hole 4;
and selecting a measuring strain gauge to be pasted on the strain beam area, and calculating the resistance variation of the strain gauge to obtain the pressure and the tension of the sensor and obtain the output signal of the sensor.
In this embodiment, as shown in fig. 1 and 5, a perforation step 10 is integrally formed on the inner side of the elastomer workpiece 2 on the side of the PCB plate mounting groove 8, and the perforation step 10 is provided with a signal line outlet hole 7 in a through manner, and the signal line outlet hole 7 is connected with the PCB plate mounting groove 8 in a through manner, so that a PCB signal mounted in the PCB plate mounting groove 8 can be safely output.
In this embodiment, as shown in fig. 1, 2 and 4, the circular through hole 5 is in through connection with both the first hollow-out plum blossom hole 3 and the second hollow-out plum blossom hole 4, and the circular through hole 5, the first hollow-out plum blossom hole 3 and the second hollow-out plum blossom hole 4 which are mutually through realize the stress effect of the sensor elastomer.
In this embodiment, as shown in fig. 1 and 6, four threaded mounting holes 6 are formed in the two opposite side walls of the elastomer workpiece 2 in a matrix manner, so that the sensor workpiece is fixedly mounted on the device.
In this embodiment, as shown in fig. 1 to 6, the transverse sectional area of the elastomer workpiece 2 is larger than the transverse sectional area of the square column 1, so that the supporting function of the elastomer workpiece 2 is effectively ensured, and the use and installation are more convenient.
In this embodiment, as shown in fig. 2-5, the incoming threading hole 9 and the outgoing threading hole 11 that link up and connect the PCB plate mounting groove 8 are respectively set up to one side of the square cylinder 1 that is close to the PCB plate mounting groove 8, and the incoming threading hole 9 and the outgoing threading hole 11 are respectively located on the opposite side of the square cylinder 1, have guaranteed wearing to establish of circuit, protect the circuit on the one hand, and the circuit that on the other hand wore to establish looks more pleasing to the eye from the outward appearance.
According to the utility model discloses above-mentioned embodiment's two component force sensor of integral type square structure, the inner wall in first fretwork plum blossom hole 3 and second fretwork plum blossom hole 4 is the roof beam district that meets an emergency, and the strainometer has been pasted through the glue of protecting the adhesive on the inner wall in roof beam district that meets an emergency, because the perpendicular setting in first fretwork plum blossom hole 3 and second fretwork plum blossom hole 4, the strainometer that makes the roof beam district department that meets an emergency set up has two direction power values, Fx and two direction atress of Fy promptly, select to measure the foil gage and paste on the roof beam district that meets an emergency, foil gage resistance variation calculates the sensor and receives pressure, the pulling force size is and reach sensor output signal, the finished product sensor precision is higher.
The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.
Claims (6)
1. The integrated square-structure two-component force sensor comprises a square cylinder and elastomer workpieces integrally formed at two ends of the square cylinder, and is characterized in that the elastomer workpieces are of a rectangular structure, the middle part of the square cylinder is provided with a circular through hole penetrating through the two elastomer workpieces, and the side wall of one elastomer workpiece is provided with a PCB mounting groove for mounting a PCB;
the elastic body workpiece comprises an elastic body workpiece and is characterized in that the side walls of two ends of the elastic body workpiece are respectively provided with a first hollowed-out plum blossom hole and a second hollowed-out plum blossom hole, the first hollowed-out plum blossom hole and the second hollowed-out plum blossom hole are vertically arranged at 90 degrees, the inner walls of the first hollowed-out plum blossom hole and the second hollowed-out plum blossom hole are strain beam areas, and strain gauges are adhered to the inner walls of the strain beam areas through protective glue.
2. The one-piece, square-construction, two-component force sensor of claim 1, wherein: the inner side of the elastomer workpiece on the side of the PCB mounting groove is integrally formed with a perforation step, the perforation step is provided with a signal wire outlet hole in a through mode, and the signal wire outlet hole is in through connection with the PCB mounting groove.
3. The one-piece, square-construction, two-component force sensor of claim 1, wherein: the circular through hole is communicated with the first hollow plum blossom hole and the second hollow plum blossom hole.
4. The one-piece, square-construction, two-component force sensor of claim 1, wherein: four threaded mounting holes are formed in the side walls, back to back, of the two elastomer workpieces in a matrix mode.
5. The one-piece, square-construction, two-component force sensor of claim 1, wherein: the transverse sectional area of the elastomer workpiece is larger than that of the square column.
6. The one-piece, square-construction, two-component force sensor of claim 1, wherein: the incoming line through wires hole and the threading hole of being qualified for the next round of competitions of link connection PCB plate mounting groove are seted up respectively to one side that square column body is close to PCB plate mounting groove, and the incoming line through wires hole with be qualified for the next round of competitions the threading hole and be located the opposite side of square column body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921427022.0U CN210243052U (en) | 2019-08-30 | 2019-08-30 | Integrated square structure two-component force sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921427022.0U CN210243052U (en) | 2019-08-30 | 2019-08-30 | Integrated square structure two-component force sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014010A (en) * | 2020-09-16 | 2020-12-01 | 深圳市鑫精诚科技有限公司 | Novel strain type pressure two-dimensional force sensor |
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2019
- 2019-08-30 CN CN201921427022.0U patent/CN210243052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014010A (en) * | 2020-09-16 | 2020-12-01 | 深圳市鑫精诚科技有限公司 | Novel strain type pressure two-dimensional force sensor |
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