Angle sensor calibration device

Abstract

The utility model relates to the technical field of angle sensor calibration devices, and particularly discloses an angle sensor calibration device, which comprises an angle dial coaxially provided with a placing hole, a clamping assembly used for clamping an angle sensor and a measuring plate, the measuring plate is provided with a positioning pin, the clamping assembly comprises a plurality of clamping tables and a clamping plate, and the clamping tables and the clamping plate are provided with positioning pins. The inner side of each clamping table is provided with an inclined face with the bottom inclining towards the inner side of the containing hole, the inclined faces are provided with guide tables in the same direction, the outer walls of the clamping plates are attached to the inclined faces, the bottoms of the clamping plates are upwards provided with guide grooves for the guide tables to slide inside, and the inner walls of the clamping plates are vertically arranged and attached to the outer wall of the angle sensor. And a bottom plate for supporting the angle sensor is further inwards arranged at the bottom of the clamping plate, so that the problem that when a traditional angle sensor calibration device is used, the positions of clamping plates need to be adjusted respectively to clamp the angle sensor, the adjustment steps are tedious, and the installation speed of the angle sensor is low is solved.

Description

Technical Field

[0001] This application relates to the field of angle sensor calibration device technology, and specifically discloses an angle sensor calibration device. Background Technology

[0002] An angle sensor is a sensor that can detect changes in the measured angle and convert them into a usable output signal. It is mainly used to measure the rotational angle between stationary and rotating components and is widely used in precision angle measurement of dynamic systems. The angle sensor's count is related to its initial position; therefore, angle calibration is an essential step in its use.

[0003] For example, an angle sensor calibration device with patent publication number CN221302204U includes an angle plate, a placement hole opened on the angle plate, and a clamping assembly installed below the placement hole. The clamping assembly clamps and fixes the angle sensor, and the upper end of the angle sensor protrudes from the upper side of the angle plate. A measuring plate is clamped on the angle sensor, and a positioning pin is installed on the measuring plate.

[0004] By rotating the angle sensor and observing whether the movement angle of the positioning pin on the measuring plate is consistent with the movement angle measured by the angle sensor, it can be determined whether the angle sensor needs to be qualified and whether it needs to be calibrated.

[0005] However, angle sensors of different models and specifications have different dimensions. In the existing technology, when installing angle sensors of different specifications, it is necessary to adjust the position of the clamping plate by using the third flat gear in the clamping assembly to fix the angle sensor. The adjustment steps are cumbersome and the installation speed of the angle sensor is slow during the calibration process.

[0006] This invention provides an angle sensor calibration device to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of this invention is to solve the problem that traditional angle sensor calibration devices require adjusting the position of the clamping plate to clamp the angle sensor, which results in cumbersome adjustment steps and slow installation speed of the angle sensor.

[0008] To achieve the above objectives, the basic solution of this utility model provides an angle sensor calibration device, including an angle dial with a coaxially formed placement hole, a clamping assembly disposed inside the placement hole for holding the angle sensor, and a measuring plate clamped at one end to the angle sensor. The other end of the measuring plate is provided with a positioning pin for aligning with the dial. A support column is circumferentially fixed to the angle dial. The clamping assembly is characterized in that it includes several clamping platforms and clamping plates. All clamping platforms are circumferentially and uniformly connected to the angle dial. The inner side of each clamping platform is provided with an inclined surface whose bottom slopes inward toward the placement hole. A guide platform is provided in the same direction on the inclined surface. The outer wall of each clamping plate is in contact with the inclined surface, and the bottom of each clamping plate has an upward-facing guide groove for the guide platform to slide inward. The inner wall of each clamping plate is vertically arranged and in contact with the outer wall of the angle sensor. The bottom of each clamping plate is also provided with a base plate for supporting the angle sensor.

[0009] Furthermore, it also includes a balance ring plate with through holes on the same axis, the bottom surface of which can fit against the top surface of all the plates.

[0010] Furthermore, each of the card plates has a pressure plate extending outward from its top outer side, and the bottom surface of the balance ring plate can be in contact with the top surface of all the pressure plates.

[0011] Furthermore, the size of the through hole is not smaller than the size of the placement hole.

[0012] Furthermore, the guide groove does not extend to the top surface of the card plate.

[0013] Furthermore, the card plate has a slot for the angle engraving disc to extend into, and the top of the card plate has an internal threaded hole communicating with the slot. A screw that abuts against the angle engraving disc is threadedly connected to the card plate through the internal threaded hole.

[0014] Furthermore, the clamping assembly includes at least three sets of card platforms and card plates.

[0015] The principle and effect of this solution are as follows:

[0016] 1. Compared with the prior art, this utility model can achieve the accuracy measurement of the angle sensor by installing the angle sensor through the clamping assembly and installing the measuring plate on the angle sensor, rotating the measuring plate, and comparing the rotation angle of the positioning pin with the data read by the angle sensor, and can perform calibration when it is non-compliant.

[0017] 2. Compared with the prior art, the clamping assembly of this utility model pre-positions the clamping plate through the clamping platform. Then, one hand holds the angle sensor, and the other hand pushes the clamping plate upward to make the clamping plate fit against the outer wall of the angle sensor. The angle sensor is supported by the base plate. Then, the angle sensor and the clamping plate are released, and the pressure plate is pressed down by the balance ring plate to make the clamping plate level. At the same time, the clamping plate is clamped down by the guide groove and guide platform in conjunction with the angle sensor to fix the angle sensor. This solves the problem that traditional angle sensor calibration devices require adjusting the position of the clamping plate to clamp the angle sensor, which is cumbersome and slow to install the angle sensor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an angle sensor calibration device according to an embodiment of this application is shown;

[0020] Figure 2 A partial schematic diagram of an angle sensor calibration device according to an embodiment of this application is shown;

[0021] Figure 3 A partial schematic diagram of an angle sensor calibration device according to an embodiment of this application is shown. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] The reference numerals in the accompanying drawings include: angle dial 1, cylinder 2, threaded column 3, angle sensor 4, clamping plate 5, clamping stage 6, pressure plate 7, measuring plate 8, positioning pin 9, guide stage 10, guide groove 11, and base plate 12.

[0024] An angle sensor calibration device, implementing, for example Figure 1 As shown:

[0025] Includes angle dial 1, clamping assembly and measuring plate 8.

[0026] Angle dial 1 has a placement hole coaxially provided, and circumferential grooves are provided on angle dial 1 to correspond to the rotation angle.

[0027] Three support pillars are also installed on the outer edge of the angle dial 1. Each support pillar includes a cylinder 2, a threaded post 3 coaxially welded to the cylinder 2, a ring fitted onto the threaded post 3, and a connecting block welded to the angle dial 1. An annular connecting platform is integrally formed on the outer bottom of the connecting block. The ring is installed inside the connecting platform, and its inner side has internal threads that mesh with the threaded post 3. A T-shaped limiting ring is welded to the outer side of the ring, and a T-shaped limiting ring groove is formed on the inner side of the connecting platform for the T-shaped limiting ring to be inserted and slid. The height of the angle dial 1 can be adjusted by rotating the ring.

[0028] The clamping assembly is installed on the angle dial 1 inside the placement hole. The clamping assembly includes a clamping platform 6 and a clamping plate 5. In this embodiment, a total of three sets of clamping platforms 6 and clamping plates 5 are installed. The clamping platforms 6 are evenly distributed around the angle dial 1. A fan-shaped groove for the angle dial 1 to extend into is opened on the outer side of the clamping platform 6. The top of the clamping platform 6 has an internal threaded hole communicating with the groove. A screw is engaged through the internal threaded hole. The bottom end of the screw extends out of the internal threaded hole and abuts against the angle dial 1 in the groove.

[0029] The inner side of the card table 6 is formed with a slope that is inclined towards the inside of the placement hole, and a guide platform 10 with the same inclination direction is also formed on the slope.

[0030] The outer wall of the pallet 5 is also inclined in the same direction as the inclined plane and fits against the inclined plane. The bottom of each pallet 5 has an upwardly inclined guide groove 11. The guide platform 10 can slide from the bottom of the pallet 5 into the guide groove 11, and the guide groove 11 does not extend to the top surface of the pallet 5, so that the pallet 5 will not detach from the pallet platform 6. Furthermore, as... Figure 2 and Figure 3 As shown, the inner side of the card plate 5 is vertically arranged and fits against the outer wall of the angle sensor 4 during installation. A base plate 12 is also formed inward at the bottom of the card plate 5 to support the angle sensor 4.

[0031] This utility model also includes a balance ring plate, which has a through hole coaxially with the angle dial 1. During installation, the balance ring plate is aligned with the retaining plate 5. In this embodiment, each retaining plate 5 has a pressure plate 7 extending outward from its top outer side, and the size of the through hole is equal to the size of the placement hole. When installing the angle sensor 4, the balance ring plate is placed on top of all the pressure plates 7, with the bottom surface of the balance ring plate in contact with the top surface of all the pressure plates 7.

[0032] After the angle sensor 4 is installed, a measuring plate 8 is also installed on the angle sensor 4. A positioning pin 9 is also installed on the free end of the measuring plate 8. The positioning pin 9 is used to align the scale on the angle dial 1.

[0033] When using this utility model, first fix the card platform 6 at equal intervals on the angle plate 1, then place the card plate 5 on the card platform 6 through the guide groove 11 and the guide platform 10 respectively. Then, hold the angle sensor 4 with one hand and push the card plate 5 upward with the other hand to make the card plate and the outer wall of the angle sensor 4 fit together. The angle sensor 4 is supported by the base plate 12. Then, release the angle sensor 4 and the card plate 5, and press the pressure plate 7 downward through the balance ring plate to make the card plate 5 level. At the same time, the angle sensor 4 is clamped downward through the guide groove 11 and the guide platform 10 to fix the angle sensor 4.

[0034] After installing the measuring plate 8 and the positioning pin 9, rotate the measuring plate 8 and compare the rotation angle of the positioning pin 9 with the data read by the angle sensor 4. This will enable the accuracy measurement of the angle sensor 4 and allow for calibration if the measurement is not compliant.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An angle sensor calibration device, comprising an angle dial with a coaxially formed placement hole, a clamping assembly disposed inside the placement hole for holding the angle sensor, and a measuring plate with one end clamped to the angle sensor, wherein the other end of the measuring plate is provided with a positioning pin for aligning with the dial, and a support column is circumferentially fixed to the angle dial, characterized in that, The clamping assembly includes several clamping platforms and clamping plates. All clamping platforms are circumferentially and evenly connected to the angle dial. The inner side of each clamping platform is provided with an inclined surface that slopes inward toward the placement hole. A guide platform is provided in the same direction on the inclined surface. The outer wall of each clamping plate is in contact with the inclined surface, and the bottom of each clamping plate has an upward-facing guide groove for the guide platform to slide inside. The inner wall of each clamping plate is vertically arranged and in contact with the outer wall of the angle sensor. The bottom of each clamping plate is also provided with a base plate for supporting the angle sensor.

2. The angle sensor calibration device according to claim 1, characterized in that, It also includes a balance ring plate with through holes on the same axis, the bottom surface of which can fit against the top surface of all the plates.

3. The angle sensor calibration device according to claim 2, characterized in that, The outer side of the top of each card plate extends outward to form a pressure plate, and the bottom surface of the balance ring plate can fit against the top surface of all the pressure plates.

4. The angle sensor calibration device according to claim 3, characterized in that, The size of the through hole is not smaller than the size of the placement hole.

5. The angle sensor calibration device according to claim 1, characterized in that, The guide groove does not extend to the top surface of the card plate.

6. The angle sensor calibration device according to claim 1, characterized in that, The mounting plate has a slot for the angle engraving disc to extend into, and the top of the mounting plate has an internal threaded hole communicating with the slot. A screw that abuts against the angle engraving disc is threadedly connected to the mounting plate through the internal threaded hole.

7. An angle sensor calibration device according to any one of claims 1 to 6, characterized in that, The clamping assembly includes at least three sets of card platforms and card plates.

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