CN218724922U

CN218724922U - Flat type force measuring sensor group

Info

Publication number: CN218724922U
Application number: CN202222911124.8U
Authority: CN
Inventors: 徐修祝; 李光明
Original assignee: WIKA AUTOMATION INSTRUMENT (SUZHOU) CO Ltd
Current assignee: WIKA AUTOMATION INSTRUMENT (SUZHOU) CO Ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-03-24
Anticipated expiration: 2032-11-02

Abstract

The application relates to a flat type dynamometry sensor group, includes: the cable connector comprises a bottom plate, a plurality of lead holes and a plurality of lead wires, wherein at least two grooves are formed in the bottom plate, sensors are arranged in the grooves, the bottom plate is provided with the lead holes, one ends of the lead holes are positioned on the front side surface of the bottom plate, the other ends of the lead holes are positioned on the side walls of the grooves, and the lead holes are used for arranging cables; the upper platform is arranged on the groove and is a test carrier platform used for monitoring the force of the electronic product. The utility model has the advantages that the force measuring sensor group has short height and can be used in sensor occasions with small space height requirements; the force measuring sensor groups are large in number, so that the force measuring requirements of a plurality of stations can be met simultaneously; the strain gauge of a single force measuring sensor is attached to one surface, so that the overall height of the sensor group is reduced, and the angular difference is convenient to adjust; the sensor is integrally designed, so that the installation space is saved, and the use is convenient.

Description

Flat type force measuring sensor group

Technical Field

The application belongs to the technical field of sensors, and particularly relates to a flat force-measuring sensor group.

Background

With the continuous bearing of industrial automation systems, the role played by the load cell is more and more important, and the application field is more and more extensive. The force sensor can be used in various fields such as weighing, engineering machinery, factory automation, medical instruments, force measuring machines and the Internet of things.

Especially in the consumer electronics industry, in order to achieve the comfort level of application of manufactured electronic products, force monitoring needs to be carried out on the manufactured electronic products in the manufacturing process, the existing force measuring sensors are relatively narrow in installation and use height space and relatively high in height, and when the force of a plurality of stations needs to be measured, a plurality of independent force measuring sensors need to be installed for measurement, so that the problems that the use is inconvenient, the installation size is difficult to match and the like exist

In order to solve the problems, the flat sensor group which has compact structure, convenient use, small mutual crosstalk among the sensors and excellent performance is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the flat force-measuring sensor group aims to solve the problems that the existing sensors are used singly, the number of the sensors is large, the sensors are crowded, the height is high, the installation and the use are inconvenient, and the mutual signal crosstalk of the sensors is small.

The utility model provides a technical scheme that its technical problem adopted is: the flat force-measuring sensor group comprises a bottom plate, wherein at least two grooves are formed in the bottom plate, sensors are arranged in the grooves, an upper platform is installed on the sensors and arranged in the grooves, and the upper platform is a test carrier platform and used for monitoring force of an electronic product.

Preferably, the utility model discloses a flat type dynamometry sensor group, be provided with the wire guide on the bottom plate, the one end of wire guide is located the leading flank of bottom plate, and the other end is located the lateral wall of recess, the wire guide is used for wearing to establish the cable conductor.

Preferably, the utility model discloses a flat type dynamometry sensor group, the wire guide is located and is provided with elastic element on the port of the leading flank of bottom plate, elastic element link up with the wire guide, elastic element is used for protecting the downthehole cable conductor of wire.

Preferably, the utility model discloses a flat type dynamometry sensor group, the sensor includes first sensor and second sensor, first sensor includes first elastomer, be provided with two sensitive roof beams at least on the first elastomer, be provided with first strain gauge on the sensitive roof beam.

Preferably, the utility model discloses a flat type force cell sensor group, first strain gauge sets up the one side at first elastomer.

Preferably, the utility model discloses a flat type load cell group, the second sensor includes the second elastomer, be provided with the second strainometer on the second elastomer.

Preferably, the utility model discloses a flat type dynamometry sensor group, the second elastomer sets up to diplopore parallel beam structure.

Preferably, the utility model discloses a flat type dynamometry sensor group, the last installation face of second elastomer and diplopore parallel beam upper surface or the lower installation face of second elastomer and diplopore parallel beam lower surface are provided with the difference in height.

Preferably, the utility model discloses a flat type force cell sensor group, the second strainometer sets up the one side at the second elastomer.

Preferably, the utility model discloses a flat type dynamometry sensor group, be provided with the protection glue on the second elastomer.

The utility model has the advantages that:

(1) The force measuring sensor group is short in height and can be used in sensor occasions with small space height requirements;

(2) The force measurement sensor groups are large in number, so that the force measurement requirements of a plurality of stations can be met simultaneously;

(3) The strain gauge of a single force measuring sensor is attached to one surface, so that the overall height of the sensor group is reduced, and the angular difference is convenient to adjust;

(4) The sensor is integrally designed and integrated on a bottom plate, so that the installation space is saved, and the installation and the use are convenient;

(5) The sensors are independently arranged in the grooves, and signal crosstalk among the sensors is small.

Drawings

The technical solution of the present application is further explained below with reference to the drawings and the embodiments.

FIG. 1 is a schematic illustration of an explosive structure according to an embodiment of the present application;

FIG. 2 is a schematic top view of an embodiment of the present application

FIG. 3 is a schematic diagram of a first sensor configuration of an embodiment of the present application;

FIG. 4 is a schematic diagram of a first sensor test circuit according to an embodiment of the present application;

FIG. 5 is a schematic top view of a second sensor in accordance with an embodiment of the present application;

FIG. 6 is a schematic diagram of a three-dimensional structure of a second sensor according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a front side configuration of a second sensor in accordance with an embodiment of the present application;

FIG. 8 is a schematic diagram of a second sensor testing circuit according to an embodiment of the present application.

The reference numbers in the figures are:

the bottom plate 1, the groove 11, the wire guide hole 12 and the elastic element 13;

the sensor 2, the first sensor 21, the sensitive beam 211, the first strain gauge 212, the first elastic body 213, the second sensor 22, the second elastic body 221, the second strain gauge 222;

upper platform 3, bolt 31.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

The embodiment provides a flat type force sensor group for monitoring the force of a manufactured electronic product in the manufacturing process, and with reference to fig. 1 and 2, the specific structure of the flat type force sensor group comprises:

the sensor comprises a bottom plate 1, wherein the bottom plate 1 is a flat steel plate or an aluminum plate, the steel plate is used for manufacturing a large-capacity and high-strength flat force sensor group, the aluminum plate is used for manufacturing a small-capacity flat force sensor group, the aluminum plate is preferably an aluminum plate in the embodiment, the aluminum plate is light in weight and easy to machine, at least two grooves 11 are machined in the bottom plate 1, in the embodiment, 6 rectangular grooves 11 are preferably arranged, a sensor 2 is fixedly arranged in each groove 11, the sensor 2 comprises a first sensor 21 and a second sensor 22, referring to fig. 3, the first sensor 21 comprises a sensitive beam 211 and a first elastic body 213, the sensitive beam 211 is adhered with a first strain gauge 212, preferably, the first strain gauge 212 is adhered to one side of the sensitive beam 211, and when glue is sealed, only one surface needs to be sealed, the sealing glue is reduced, so that the overall height of the sensor group can be reduced, and the risk of interference of the sealing glue on an upper platform 3 is also reduced; meanwhile, the adjustment of the angular difference is facilitated, because the first strain gauges 212 are attached to one side of the sensitive beam 211, when the sensor 2 is installed in the groove 11, the other side surface of the sensitive beam 211 can be directly used for the adjustment of the angular difference, the other side surface of the sensitive beam 211 is filed by a file to achieve the purpose of the adjustment of the angular difference, or the other side surface of the sensitive beam 211 is repaired to achieve the purpose of the trimming of the sensitivity; at least two sensitive beams 211 are arranged on the first elastic body 213, preferably, 4 sensitive beams 211 are arranged on the first elastic body 213 in this embodiment, and the 4 sensitive beams 211 are distributed pairwise symmetrically; the second sensor 22 includes a second elastic body 221, and a second strain gauge 222 is provided on the second elastic body 221.

It can be understood that, in order to connect the cable on the sensor 2 externally, be provided with the wire guide 12 on the bottom plate 1, the one end of wire guide 12 is located the leading flank of bottom plate 1, and the other end is located the lateral wall of recess 11, and the wiring end at sensor 2 is connected to the one end of cable conductor, and the other end of cable conductor runs through wire guide 12 and is external with the instrument.

In order to protect the cable wire and prevent the port of the wire guide hole 12 from being cut, an elastic element 13 is fixedly connected with the outer port of the wire guide hole 12, the elastic element adopts a spring, the cable wire passes through the spring, and the elastic deflection of the spring plays a role in protecting the cable wire.

Upper mounting plate 3, upper mounting plate 3 sets up in recess 11 top, in this embodiment, upper mounting plate 3 sets up to flat, be provided with the screw hole on the sensor 2, upper mounting plate 3 passes through bolt 31 to be fixed on sensor 2, upper mounting plate 3 is local to be established in the recess, reach the effect that protection sensor 2 leaks outward and the outward appearance is clean and tidy, a plurality of sensors 2 have independent upper mounting plate 3, and install in each recess independently, reduced the mutual signal crosstalk of sensor, improve flat type force cell sensor group's precision.

Preferably, in the flat load cell group of the present embodiment, the first elastic body 213 is also provided with a first strain gauge 212, and referring to fig. 4, the connection position of the first strain gauge 212 in the test circuit is shown.

Preferably, in the flat load cell group of the present embodiment, referring to fig. 5 to 7, the second elastic body 221 is provided with a parallel beam structure with two holes, and a height difference h is provided between an upper mounting surface of the second elastic body 221 and an upper surface of the parallel beam structure with two holes or between a lower mounting surface of the second elastic body 221 and a lower surface of the parallel beam structure with two holes, in the present embodiment, the height difference from a lower plate surface of the base plate 1 to an upper surface of the upper platform 3 is 4 to 9mm, the thickness of the sensor is 3 to 5mm, and the height difference h is 0 to 1mm, and the second strain gauge 222 is attached to one side of the second elastic body 221, so that the overall height of the second sensor is reduced, and the flat load cell group can be used in a sensor with a small space height requirement.

Preferably, in the flat load cell group of the present embodiment, referring to fig. 8, the second strain gauge 222 and the circuit wires on the second elastic body 221 are provided with a protective glue for protecting the second strain gauge 222 and the circuit wires.

A schematic diagram of a test circuit for the second sensor 22 is shown in fig. 7.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The flat force measuring sensor group is characterized by comprising a bottom plate (1), wherein at least two grooves (11) are formed in the bottom plate (1), sensors (2) are arranged in the grooves (11), an upper platform (3) is installed on each sensor (2), the upper platform (3) is arranged in the grooves (11), and the upper platform (3) is arranged as a test carrier platform and used for monitoring force of an electronic product.

2. The flat type load cell group according to claim 1, wherein said base plate (1) is provided with wire holes (12), one end of said wire holes (12) is located on the front side surface of said base plate (1), the other end is located on the side wall of said groove (11), and said wire holes (12) are used for passing through cable wires.

3. The flat load cell group according to claim 2, wherein an elastic element (13) is disposed at the end of the wire guide hole (12) located at the front side of the base plate (1), the elastic element (13) is connected to the wire guide hole (12), and the elastic element (13) is used for protecting the cable inside the wire guide hole (12).

4. The flat load cell group according to claim 1, wherein said sensor (2) comprises a first sensor (21) and a second sensor (22), said first sensor (21) comprises a first elastic body (213), said first elastic body (213) is provided with at least two sensing beams (211), said sensing beams (211) are provided with a first strain gauge (212).

5. The flat load cell group according to claim 4, wherein said first strain gauge (212) is arranged on one side of the first elastic body (213).

6. The flat load cell group according to claim 4, wherein said second sensor (22) comprises a second elastomer body (221), said second elastomer body (221) being provided with a second strain gauge (222).

7. The flat load cell group according to claim 6, wherein said second elastomeric body (221) is provided as a double-bore parallel beam structure.

8. The load cell group according to claim 7, wherein the upper mounting surface of said second elastomeric body (221) and the upper surface of the beam or the lower mounting surface of said second elastomeric body (221) and the lower surface of the beam are provided with a height difference.

9. The flat load cell group according to claim 7, wherein said second strain gauge (222) is arranged on one side of the second elastic body (221).

10. The flat load cell group according to claim 9, wherein said second elastomeric body (221) is provided with a protective glue.