Adjustable fixing device for angle sensor

Abstract

The utility model is suitable for the field of detection equipment, and provides an adjustable fixing device for an angle sensor, which comprises a positioning plate, and one side of the positioning plate is provided with an open slot; a sensor is arranged on one surface of the positioning plate; the center of the positioning plate and the center of the sensor are located on the same axis. A limiting space is formed between the positioning plate and the sensor; and the positioning plate and the sensor relatively rotate along the axis in the limiting space, so that the positioning plate is positioned by using the positioning mechanism and the shaft to be measured, and the angle sensor and the shaft to be measured are coaxially centered by using the positioning plate, so that the alignment difficulty during installation of the angle sensor is reduced, and the measurement precision of the angle sensor is improved.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to an adjustable fixing device for an angle sensor. Background Art

[0002] Angle sensors are used to measure precision detection components related to angles. In most cases, they are used to detect the rotation angle of shaft components.

[0003] Among them, during the installation and use of the angle sensor, it is necessary to ensure that its input end is coaxially positioned with the shaft component to ensure the accuracy of the detected value; however, due to the inevitable positioning deviation (centering deviation or angle deviation) in the actual assembly process, most of the existing angle sensor installation methods are direct assembly methods, that is, the input end of the angle sensor is fixedly connected to the end of the shaft component (slot pin pair connection structure), and after the installation is completed, it is impossible to achieve fine-tuning actions such as zeroing the angle sensor.

[0004] As is known from the above, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. To address the above problems, an adjustable fixing device for an angle sensor is proposed. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the present utility model is to provide an adjustable fixing device for an angle sensor, which adjusts the placement angle of the angle sensor through a positioning plate and a sensor bracket, thereby providing an adjustable fixing device for an angle sensor.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an adjustable fixing device for an angle sensor, comprising a positioning plate, one side of which is provided with an open groove; and one side of which is provided with a sensor.

[0007] The centers of the positioning plate and the sensor are located on the same axis; and a limiting space is provided between the positioning plate and the sensor.

[0008] The positioning plate and the sensor rotate relatively along the axis in the limiting space.

[0009] According to the adjustable fixing device for the angle sensor of the utility model, the positioning plate is in the shape of a parallelogram with a first U-shaped groove in the middle, and a sensor bracket is provided on the other side of the positioning plate.

[0010] According to the adjustable fixing device for the angle sensor of the utility model, a second U-shaped groove is provided on the sensor bracket, and a rotating shaft is passed through the first U-shaped groove and the second U-shaped groove.

[0011] According to the adjustable fixing device for an angle sensor of the utility model, the sensor bracket is a bending plate, and the bending angle of the sensor bracket is 90°.

[0012] According to the adjustable fixing device for the angle sensor of the utility model, the axis of the rotating shaft and the center of the positioning plate are located on the same axis.

[0013] According to the adjustable fixing device for the angle sensor of the utility model, the limiting space is an arc-shaped groove symmetrically arranged on the sensor.

[0014] The utility model provides an adjustable fixing device for an angle sensor, which has the following beneficial effects:

[0015] The utility model provides an adjustable fixing device for an angle sensor, comprising a positioning plate to assist the angle sensor in positioning its center, and a sensor bracket to support and fix the angle sensor, thereby achieving strong stability; a positioning mechanism and an axis to be measured are used to position the positioning plate, and the positioning plate is used to center the angle sensor coaxially with the axis to be measured, thereby reducing the difficulty of aligning the angle sensor during installation and improving the measurement accuracy of the angle sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the positioning plate;

[0018] Figure 3 It is a structural schematic diagram of the sensor bracket;

[0019] Figure 4 It is a structural schematic diagram of the sensor;

[0020] Figure 5 It is a schematic diagram of the structure at the arc groove;

[0021] Figure 6 It is a schematic diagram of the structure at the rotating axis;

[0022] Figure 7 for Figure 1 Schematic diagram of the structure;

[0023] Figure 8 yes Figure 7 The structural diagram of part A in the figure;

[0024] Fig. 9 It is a schematic diagram of the structure at the positioning piece;

[0025] Fig.10 yes Fig. 9 A cross-sectional view of the middle C portion;

[0026] In the figure: 00-main bracket, 1-axis to be measured, 10-first positioning hole, 11-rotating part, 12-matching part, 13-activity space, 2-sensor, 21-rotating axis, 22-arc groove, 3-axis end baffle, 31-second positioning hole, 32-mounting hole, 4-fixing part, 5-sensor bracket, 51-second U-shaped groove, 6-positioning part, 7-positioning plate, 71-first U-shaped groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] See also Figure 1 to Figure 6 The utility model provides a fixing bracket for the angle sensor 2, including a positioning plate 7, a first U-shaped groove 71 is provided in the positioning plate 7, a sensor 2 is provided on one side of the positioning plate 7, a sensor 2 bracket is provided on the other side of the positioning plate 7, a second U-shaped groove 51 is opened on the sensor 2 bracket, one side of the sensor 2 input rotation shaft 21 is against the first U-shaped groove 71, and the first U-shaped groove 71 and the second U-shaped groove 51 are both penetrated by the rotation shaft 21.

[0031] The center of the positioning plate 7 and the sensor 2 are located on the same axis; the axis of the rotating shaft 21 and the center of the positioning plate 7 are located on the same axis, thereby achieving positioning of the sensor 2 with the help of the positioning plate 7.

[0032] A limiting space is provided between the positioning plate 7 and the sensor 2, and the limiting space is an arc groove 22 symmetrically arranged on the sensor 2. When it is necessary to perform operations such as zeroing the sensor 2, the sensor 2 is rotated along the limiting space (arc groove 22) with the axis as the center of the circle to adjust the relative angle between the sensor 2 and the positioning plate 7.

[0033] The sensor 2 includes a shell, a rotating shaft 21 is passed through the shell, a sealing assembly is arranged around the rotating shaft 21, a shaft to be measured 1 is coaxially arranged at the end of the rotating shaft 21, and the shaft to be measured 1 is a swing arm shaft in this embodiment and is installed on the main bracket 0, and the sensor 2 is connected to the main bracket 0 via the sensor 2 bracket.

[0034] See also Figure 5 , Figure 6 and Figure 7 Preferably, a rotating member 11 is eccentrically provided at the end of the shaft 1 to be measured. Specifically in this example, the rotating member 11 is a shift shaft (a cylindrical shaft-type component). Preferably, a shaft end baffle 3 is coaxially fixed to the end of the shaft 1 to be measured.

[0035] A first positioning hole 10 is provided at the end of the shaft 1 to be tested, and a second positioning hole 31 is provided at the center of the shaft end baffle 3. Positioning members 6 are installed in the first positioning hole 10 and the second positioning hole 31. The positioning member 6 adopts a pin structure. The axial center positioning of the shaft 1 to be tested and the shaft end baffle 3 is achieved through the cooperation of the positioning member 6 with the first positioning hole 10 and the second positioning hole 31.

[0036] join Figures 1 to 8 , Specifically, the position of installing the sensor 2 bracket is that the second U-shaped groove 51 of the sensor 2 bracket is facing the shaft 1 to be measured, and the sensor 2 bracket is fixed to the positioning plate 7 by bolts. After the positioning member 6 is installed, one end of it is clearance fit or transition fit with the shaft end baffle 3. At this time, the shaft end baffle 3 is in a rotatable state, and one end is installed on the sensor 2 bracket. The relative position of the sensor 2 bracket and the positioning member 6 is adjusted, and the positioning member 6 is passed through the second U-shaped groove 51 so that the positioning member 6 just rests against the first U-shaped groove 71 of the positioning plate 7. The shaft end baffle 3 is eccentrically provided with a counterweight to rotate the shaft end baffle 3. When the shaft end baffle 3 is in a rotatable state, its center of gravity is close to one side of the rotating member 11. The shaft end baffle 3 rotates at an angle, and the rotating member 11 is located at the lowest end of the shaft end baffle 3. After the shaft end baffle 3 is positioned, the shaft end baffle 3 is fixedly installed with the end of the shaft 1 to be measured through a fixed structure, and finally the positioning member 6 is removed.

[0037] See also Figure 3Specifically, the sensor 2 bracket is a bending plate, and the bending angle of the sensor 2 bracket is 90°. One end of the sensor 2 bracket is bolted to the positioning plate 7, and the other end of the sensor 2 bracket is bolted to the main bracket 0, so that the sensor 2 bracket is easy to install and disassemble.

[0038] The output end of the sensor 2 is installed with a matching piece 12, which is a dial plate with a predetermined angle to the axis of the output end of the sensor 2. The matching piece 12 is provided with an activity space 13 for the output end of the sensor 2 to move radially, and the rotating piece 11 extends into the activity space 13. Through the above structure, the connection between the sensor 2 and the shaft to be measured 1 is replaced from the traditional "rigid connection" to a "flexible connection". Even if there is a certain angle mismatch or the axis is not centered, the activity space 13 between the groove of the dial plate and the pin of the dial shaft allows a certain amount of offset. At the same time, the second U-shaped groove 51 on the sensor bracket 5 facilitates the installation and mutual cooperation of the sensor 2 and the matching piece 12.

[0039] The utility model provides an adjustable fixing device for an angle sensor, comprising a positioning plate to assist the angle sensor in positioning its center, and a sensor bracket to support and fix the angle sensor, thereby achieving strong stability; a positioning mechanism and an axis to be measured are used to position the positioning plate, and the positioning plate is used to center the angle sensor coaxially with the axis to be measured, thereby reducing the difficulty of aligning the angle sensor during installation and improving the measurement accuracy of the angle sensor.

[0040] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An adjustable fixing device for an angle sensor, characterized in that: It comprises a positioning plate, one side of which is provided with an opening groove; one side of which is provided with a sensor; The centers of the positioning plate and the sensor are located on the same axis; a limiting space is provided between the positioning plate and the sensor; The positioning plate and the sensor rotate relatively along the axis in the limiting space.

2. The adjustable fixing device for an angle sensor according to claim 1, characterized in that: The positioning plate is in the shape of a parallelogram with a first U-shaped groove in the middle, and a sensor bracket is provided on the other side of the positioning plate.

3. The adjustable fixing device for an angle sensor according to claim 2, characterized in that: The sensor bracket is provided with a second U-shaped groove, and a rotating shaft passes through the first U-shaped groove and the second U-shaped groove.

4. The adjustable fixing device for an angle sensor according to claim 3, characterized in that: The sensor bracket is a bent plate, and the bending angle of the sensor bracket is 90°.

5. The adjustable fixing device for an angle sensor according to claim 3, characterized in that: The axis of the rotating shaft and the center of the positioning plate are located on the same axis.

6. The adjustable fixing device for an angle sensor according to claim 1, characterized in that: The limiting space is an arc-shaped groove symmetrically arranged on the sensor.

Images