CN220437457U - A torque and angle sensor calibration device - Google Patents

Abstract

The utility model relates to a torque angle sensor calibration device, which includes a device bracket. A standard torque sensor is provided on the device bracket. The upper end of the standard torque sensor is a torque output end of the torque sensor. The device bracket is also provided with a sensor for supplying the standard torque sensor to the standard torque sensor. The lower end of the servo motor transmits torque. The device bracket is provided with a left column and a right column respectively on the left and right sides of the standard torque sensor. The left column is equipped with a first sensor support for guide movement and is fixed on the first sensor support. There is a standard angle sensor set coaxially with the standard torque sensor. The lower end of the standard angle sensor is the torque input end of the angle sensor. The right column is guided and moved in the up and down direction. It is equipped with a second sensor support for the fixed installation of the torque angle sensor. . The utility model provides a torque and angle sensor calibration device that facilitates ensuring the coaxiality between a torque and angle sensor to be calibrated and a standard sensor.

Description

A torque and angle sensor calibration device

Technical field

The utility model relates to the field of verification and calibration, and in particular to a torque and angle sensor calibration device.

Background technique

The torque and angle sensor is a sensor that can measure the torque and rotation angle on the transmission path. Its specific structure is shown in Figures 1 to 2: it includes a sensor housing. The sensor housing is rotated with a sensor rotating part. The sensor rotating part is One end is the sensor torque input end for torque input, and the other end is the sensor torque output end for torque output. The sensor torque input end has an inner square hole structure, and the sensor torque output end has an outer square head structure.

When in use, the sensor housing is fixed on a fixed base, and the sensor torque input end and the sensor torque output end are connected in series to the corresponding transmission path, for example, to the corresponding transmission shaft. The output rotation angle of the transmission shaft Both the output torque and the output torque can be measured by the torque angle sensor. According to the corresponding calibration specifications, the torque and angle sensor needs to be calibrated regularly. The traditional calibration form is not convenient for simultaneous calibration of the torque and angle characteristics of the torque and angle sensor, and it is also not convenient to maintain the required parameters in the traditional calibration method. The coaxiality between the calibration sensor and the standard sensor is not conducive to ensuring the accuracy of the calibration results.

Utility model content

The purpose of this utility model is to provide a torque and angle sensor calibration device that facilitates ensuring the coaxiality between the torque and angle sensor to be calibrated and the standard sensor.

In order to solve the above technical problems, the technical solution of a torque angle sensor calibration device in the present utility model is as follows:

A torque and angle sensor calibration device includes a device bracket. A standard torque sensor with an axis extending in the up and down direction is provided on the device bracket. The upper end of the standard torque sensor is used to communicate with the sensor torque input end of the torque angle sensor in the up and down direction. The torque output end of the torque sensor is connected with the anti-rotation sleeve. The device bracket is also provided with a servo motor for transmitting torque to the lower end of the standard torque sensor. The device bracket is provided with left and right columns on the left and right sides of the standard torque sensor. The column, the left column is guided and moved with a first sensor support. A standard angle sensor set coaxially with the standard torque sensor is fixed on the first sensor support. The lower end of the standard angle sensor is used with the torque angle sensor. The sensor torque output end is connected to the torque input end of the rotation angle sensor in the up and down direction. The right column is equipped with a second sensor support for fixed installation of the torque angle sensor, which is guided and moved in the up and down direction.

Further, the second sensor support is connected to the right column through a connecting sleeve. The right column is composed of a vertically arranged cylindrical rod. The connecting sleeve has a circular inner hole that matches the cylindrical rod. The wall of the connecting sleeve is There are right column tightening screws threaded along the radial direction of the connecting sleeve.

Further, the second sensor support includes a vertically arranged sensor connecting plate. The sensor connecting plate is provided with a sensor fixing threaded hole whose axis extends along the radial direction of the connecting sleeve. The sensor fixing threaded hole is threaded with a torque angle sensor. Fixing screws fixed on the second sensor holder.

Further, the device bracket is provided with a dovetail guide rail with a guide direction extending in the left and right directions, and the bottom of the right column is provided with a column base that cooperates with the guide movement of the dovetail guide rail.

Further, the left upright column includes two vertical guide rods spaced front and rear, and the first sensor support is guided and moved on the two vertical guide rods.

Further, the lower end of the device bracket is fixed with bracket legs. The device bracket is rotated and equipped with a transmission gear that is connected to the lower end of the standard torque sensor. The servo motor is fixed at the bottom of the device bracket. The motor shaft of the servo motor is fixed with a transmission gear that meshes with the transmission gear. Transmission motor shaft gear.

The beneficial effects of the utility model are: when in use, the torque and angle sensor to be calibrated is fixed on the second sensor support, and the second sensor support is moved downward along the right column so that the torque input end of the torque and angle sensor Connect the torque sensor torque output end anti-rotation sleeve of the standard torque sensor; move the first sensor support downward along the left column so that the torque output end of the torque angle sensor is connected to the rotation angle sensor torque input end anti-rotation sleeve of the standard angle sensor. Connection, since the standard angle sensor and the standard torque sensor are coaxial, it includes ensuring the coaxiality of the standard angle sensor, torque angle sensor and standard torque sensor on the force transmission path. The servo motor inputs power to the standard torque sensor, and the standard torque The sensor operates together with the torque and angle sensor, and the torque measurement characteristics of the torque and angle sensor are calibrated through the readings of the standard torque sensor; the angle measurement characteristics of the torque and angle sensor are calibrated through the standard angle sensor.

Description of the drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present disclosure are shown by way of illustration and not limitation, and like or corresponding parts are represented by like or corresponding numerals, wherein:

Figure 1 is a schematic structural diagram of a torque and angle sensor in the background technology of the present invention;

Figure 2 is a top view of Figure 1;

Figure 3 is a schematic structural diagram of an embodiment of the torque and angle sensor calibration device of the present utility model;

Figure 4 is a usage status diagram of Figure 3;

Figure 5 is a schematic diagram of the cooperation between the second sensor support and the torque angle sensor in Figure 3;

Explanation of reference signs: 1. Sensor housing; 2. Sensor torque output end; 3. Sensor torque input end; 4. Device bracket; 5. Bracket legs; 6. Servo motor; 7. Motor shaft gear; 8. Transmission gear ; 9. Standard torque sensor; 10. Left column; 11. Right column; 12. Mounting plate; 13. Fixing screws; 14. Sensor connecting plate; 15. Second sensor support; 16. Connecting sleeve; 17. Right column tightening screw; 18. First sensor support; 19. Left column tightening screw; 20. Standard angle sensor; 21. Torque input end of angle sensor.

Detailed ways

In order to facilitate understanding of the present utility model, the present utility model will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. The preferred embodiments of the present utility model are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a thorough and comprehensive understanding of the disclosure.

It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as commonly understood by those skilled in the technical field belonging to the present invention. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention.

The embodiment of a torque angle sensor calibration device in the present utility model is shown in Figures 3 to 5: it includes a mounting bracket 4, which is a horizontally arranged plate-shaped structure, and a bracket leg 5 is fixed at the bottom of the device bracket. Used to raise the height of the device bracket to facilitate the installation of the servo motor 6.

The device bracket is provided with a standard torque sensor 9 with an axis extending in the up and down direction. The upper end of the standard torque sensor is a torque output end of the torque sensor used to prevent rotation in the up and down direction with the sensor torque input end of the torque angle sensor, because In this embodiment, the sensor torque input end of the torque angle sensor has an inner square hole structure, so the torque output end of the torque sensor has an outer square head structure adapted to the inner square hole structure.

The device bracket is also provided with a servo motor 6 for transmitting torque to the lower end of the standard torque sensor. Specifically, the device bracket is equipped with a transmission gear 8 that is connected to the lower end of the standard torque sensor. The servo motor 6 is fixed at the bottom of the device bracket. The motor shaft of the servo motor is fixed with a motor shaft gear 7 that meshes with the transmission gear.

The device bracket is provided with a left upright column 10 and a right upright column 11 respectively on the left and right sides of the standard torque sensor. In this embodiment, the left upright column 10 includes two vertical guide rods spaced front and back. Each vertical guide rod The bottom of the device is fixed on the device bracket, and the first sensor support 18 is installed on the two vertical guide rods to guide the movement in the up and down direction. The first sensor support 18 cannot rotate relative to the vertical guide rods, and the first sensor support is threaded A left column tightening screw 19 for tightening the corresponding vertical guide rod is connected. When the left column tightening screw 19 is loosened, the first sensor support 18 can move up and down along the left column. When the left column is tightened, the first sensor support 18 can move up and down along the left column. When the upright column tightens the screw, the left upright column tightens the screw against the corresponding vertical guide rod, so that the height of the first sensor support can be fixed.

A standard angle sensor 20 arranged coaxially with the standard torque sensor is fixed on the first sensor support through bolts. The lower end of the standard angle sensor is used to connect with the sensor torque output end of the torque angle sensor in the up and down direction. The torque input terminal 21 of the angle sensor. In this embodiment, because the sensor torque output end of the torque angle sensor has an outer square head structure, the torque input end of the rotation angle sensor has an inner square hole structure that is adapted to the outer square head structure.

The right column is equipped with a second sensor support 15 for fixed installation of the angle sensor, which is guided and moved in the up and down direction. In this embodiment, the second sensor support is connected to the right column 11 through the connecting sleeve 16. The right column is composed of a vertically arranged cylindrical rod. The connecting sleeve has a circular inner hole that matches the cylindrical rod. The connecting sleeve The right column tightening screw 17 is threaded on the wall of the sleeve along the radial direction of the connecting sleeve. When the right column tightening screw 17 is loosened, the second sensor support can move up and down along the right column, and at the same time, the second sensor support can also rotate around the axis of the right column, turning the second sensor support from the standard angle The lower side of the sensor is rotated away to facilitate the installation of the torque angle sensor. After the torque angle sensor is installed on the second sensor support, the second sensor support is rotated to rotate the torque angle sensor to the lower side of the standard angle sensor. . When the right column tightening screw is tightened, the right column tightening screw tightens the right column, and the second sensor support can be fixed. At this time, the second sensor support can neither move up or down relative to the right column. Turn.

The second sensor support includes a vertically arranged sensor connecting plate 14. The sensor connecting plate is provided with a sensor fixing threaded hole whose axis extends along the radial direction of the connecting sleeve. The sensor fixing threaded hole is threaded with a thread for fixing the torque angle sensor to the sensor. Fixing screw 13 on the second sensor holder. That is to say, the torque and angle sensor to be calibrated is connected to the sensor connecting plate of the second sensor support through the fixing screw. The torque and angle sensor has a sensor connecting plate 12, and the sensor connecting plate 12 is provided with a hole for the fixing screw 13 to pass through. of screw holes.

The device bracket is provided with a dovetail guide rail with a guide direction extending in the left and right directions, and the bottom of the right column is provided with a column base that cooperates with the guide movement of the dovetail guide rail. The right column and the second sensor support can be moved left and right to change the position of the torque and angle sensor, ensuring that the torque and angle sensor can be located directly below the standard angle sensor. After the left and right positions of the right column are adjusted, they can be tightened screws to secure the position of the right column.

In the above description of this specification, the terms "fixed", "installed", "connected" or "connected" should be interpreted broadly unless otherwise expressly stated and limited. For example, as far as the term "connection" is concerned, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary. , or it can be the internal connection between two elements or the interactive relationship between two elements. Therefore, unless otherwise explicitly limited in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

Based on the above description of this specification, those skilled in the art can also understand the terms used below, such as "upper", "lower", "front", "back", "left", "right", "length", "width" ”, “thickness”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “axial”, “radial”, “circumferential”, “center”, “ Terms indicating the orientation or positional relationship such as "longitudinal", "transverse", "clockwise" or "counterclockwise" are based on the orientation or positional relationship shown in the drawings of this specification, and are only for the convenience of explaining the present invention. The purpose of the scheme and simplified description is not to express or imply that the devices or elements involved must have the specific orientation, be constructed and operate in the specific orientation, so the above orientation or positional relationship terms cannot be understood or interpreted. It is a limitation of the solution of this utility model.

In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinal numbers are only for descriptive purposes and cannot be understood to express or imply relative importance or implicit indication. The number of technical features. Thus, a feature qualified with "first" or "second" may explicitly or implicitly include at least one of these features. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly and specifically limited.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the spirit of the technical solutions of the various embodiments of the present invention. and scope.

Claims (6)

1. A torque and angle sensor calibration device, including a device bracket, characterized in that: the device bracket is provided with a standard torque sensor with an axis extending in the up and down direction, and the upper end of the standard torque sensor is a sensor torque used with the torque angle sensor. The input end is connected with the torque sensor torque output end in the up and down direction. The device bracket is also provided with a servo motor for transmitting torque to the lower end of the standard torque sensor. The device bracket is provided with two servo motors on the left and right sides of the standard torque sensor. The left column and the right column are equipped with a first sensor support for guide movement on the left column. A standard angle sensor arranged coaxially with the standard torque sensor is fixed on the first sensor support. The lower end of the standard angle sensor is used for The torque input end of the angle sensor is connected to the torque output end of the torque angle sensor in the up and down direction. The right column is equipped with a second sensor support for the fixed installation of the torque angle sensor, which is guided and moved in the up and down direction. . 2. The torque angle sensor calibration device according to claim 1, characterized in that: the second sensor support is connected to the right column through a connecting sleeve, the right column is composed of a vertically arranged cylindrical rod, and the connecting sleeve has The circular inner hole is adapted to the cylindrical rod, and the right column tightening screw is threadedly connected to the sleeve wall of the connecting sleeve along the radial direction of the connecting sleeve. 3. The torque angle sensor calibration device according to claim 2, characterized in that: the second sensor support includes a vertically arranged sensor connecting plate, and the sensor connecting plate is provided with a sensor fixing axis extending along the radial direction of the connecting sleeve. The sensor fixing threaded hole is threaded with a fixing screw for fixing the torque angle sensor to the second sensor support. 4. The torque and angle sensor calibration device according to claim 2, characterized in that: the device bracket is provided with a dovetail guide rail with a guide direction extending in the left and right directions, and the bottom of the right column is provided with a dovetail guide rail that cooperates with the guide movement. column base. 5. The torque and angle sensor calibration device according to claim 1, characterized in that: the left column includes two vertical guide rods spaced front and back, and the first sensor support is guided and moved on the two vertical guide rods. superior. 6. The torque angle sensor calibration device according to any one of claims 1 to 5, characterized in that: the lower end of the device bracket is fixed with bracket legs, and the device bracket is rotatably equipped with a transmission gear connected to the lower end of the standard torque sensor. , the servo motor is fixed at the bottom of the device bracket, and the motor shaft of the servo motor is fixed with a motor shaft gear that meshes with the transmission gear.