Angle sensor detection device

Abstract

The utility model relates to the field of angle detection, in particular to an angle sensor detection device which comprises a motor, the output end of the motor is provided with a hollow rotating platform, the rotating action of the detection device is slowed down and stabilized, the torque and rigidity of the whole structure are improved, the problem of sudden rotating speed change caused by abnormal movement and instability of the motor is solved, and the detection efficiency is improved. A reference angle sensor is arranged at the lower end of the hollow rotating platform, an upper clamping mechanism is arranged below the reference angle sensor, a measured angle sensor is arranged below the upper clamping mechanism, a carrying seat is arranged below the measured angle sensor, a jacking mechanism is arranged at the lower end of the carrying seat, and a secondary clamping mechanism is arranged on one side of the carrying seat. According to the angle detection device, a product is subjected to secondary positioning and clamping, the problem of zero position deviation is solved, the testing unit is arranged on one side of the secondary clamping mechanism, and through the improvement, the angle detection precision of the detection device is effectively improved.

Description

Technical Field

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

[0002] Angle sensors are widely used in many fields. For example, in the automotive industry, they are used to detect steering angles and wheel alignment, thereby improving vehicle handling and safety. In robotics, they are used to achieve autonomous navigation and precise control of robots. As control accuracy increases, the detection accuracy requirements of the sensors themselves also need to be improved accordingly.

[0003] During the production of sensors, factory accuracy is determined by the testing process. Usually, a motor drives the mechanical structure to rotate the product for testing. However, unstable testing processes and imperfect methods often lead to misjudgment of sensor accuracy, resulting in detection deviation.

[0004] The main causes of detection bias include:

[0005] 1. The drive motor is directly used for angle control, with inaccurate control accuracy and no closed-loop feedback. This results in an unstable actual control angle, causing the structure to shake during the detection process, and the detection angle to fluctuate, making accurate detection impossible.

[0006] 2. There is a gap between the product and the tooling, resulting in inaccurate initial zero position and a fixed offset in the test output value

[0007] 3. The detection method is imperfect, the motor output angle is not accurate, and the motor angle acquisition and angle sensor output acquisition time are not synchronized. During the actual detection, the product is driven by the motor and has deviated from the predetermined angle, resulting in detection deviation due to the asynchronous deviation in time.

[0008] To this end, we propose an angle sensor detection device to solve the above problems. Utility Model Content

[0009] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0010] In view of the problem that the existing angle sensor detection device has inaccurate angle detection, the present utility model is proposed.

[0011] Therefore, the purpose of the present invention is to provide an angle sensor detection device, which aims to solve the problem of inaccurate angle detection of existing angle sensor detection devices.

[0012] In order to solve the above technical problems, the utility model provides the following technical solutions: it includes a base, a bracket is provided on one side of the base, a motor is fixedly connected to the top of the bracket, a hollow rotating platform is provided at the output end of the motor, a reference angle sensor is provided at the lower end of the hollow rotating platform, an upper clamping mechanism is provided below the reference angle sensor, a measured angle sensor is provided below the upper clamping mechanism, a carrier is provided below the measured angle sensor, a lifting mechanism is provided at the lower end of the carrier, a secondary clamping mechanism is provided on one side of the carrier, and a test unit is provided on one side of the secondary clamping mechanism.

[0013] As a preferred solution of the angle sensor detection device of the present invention, the upper clamping mechanism includes a No. 1 cylinder fixedly connected below the reference angle sensor, and the output end of the No. 1 cylinder is fixedly connected to the upper clamping claw.

[0014] As a preferred solution of the angle sensor detection device of the utility model, the secondary clamping mechanism includes a second mounting bracket fixedly connected to the base, the upper end of the second mounting bracket is fixedly connected to the No. 2 cylinder, and the output end of the No. 2 cylinder is fixedly connected to the lower clamping jaw.

[0015] As a preferred solution of the angle sensor detection device of the present invention, the jacking mechanism includes a first mounting bracket fixedly connected above the base, the upper end of the first mounting bracket is fixedly connected to a jacking cylinder, and the output end of the jacking cylinder is fixedly connected to a jacking claw.

[0016] As a preferred solution of the angle sensor detection device of the present invention, the carrier is fixedly connected to the bracket, a loading groove and a lifting groove are provided inside the carrier, and the lifting claw is located in the lifting groove.

[0017] As a preferred solution of the angle sensor detection device of the utility model, the test unit includes a third mounting bracket fixedly connected above the base, a No. 3 cylinder is fixedly connected above the third mounting bracket, and a test device is fixedly connected to the output end of the No. 3 cylinder, and the test device includes a test probe.

[0018] As a preferred solution of the angle sensor detection device of the present invention, the motor and the hollow rotating platform are connected via a coupling.

[0019] Beneficial effects of the angle sensor detection device of the utility model:

[0020] By providing a hollow rotating platform, the rotational movement of the detection device can be decelerated and stabilized, the torque and rigidity of the overall structure can be improved, the problem of sudden speed changes caused by abnormal movement and instability of the motor can be reduced, and the problems of structural shaking, detection angle fluctuation, and inaccurate detection during the detection process can be effectively avoided. A secondary clamping mechanism is provided to perform secondary positioning and clamping on the product, which solves the problem of zero-position offset. A reference angle sensor and a measured angle sensor are synchronously provided, and the reference angle sensor monitors the output angle of the motor, so that the motor only serves as a power source, replacing the motor angle as the real angle feedback signal. By synchronously acquiring the outputs of the reference angle sensor and the measured angle sensor, detection deviations caused by differences in acquisition time are avoided. Improvements have been made to the factors that cause angle detection deviations in the above-mentioned background technology, effectively improving the accuracy of angle detection of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the angle sensor detection device.

[0023] Figure 2 This is a structural diagram of the upper clamping mechanism in the angle sensor detection device.

[0024] Figure 3 This is a structural relationship diagram of the base, secondary clamping mechanism, lifting mechanism, carrier, test unit, measured angle sensor and product rotating arm in the angle sensor detection device.

[0025] Figure 4 This is a structural diagram of the secondary clamping mechanism in the angle sensor detection device.

[0026] Figure 5 This is an exploded view of the lifting mechanism, carrier, angle sensor to be measured, and product rotating arm in the angle sensor detection device;

[0027] Figure 6 This is a schematic diagram of the structure of the carrier in the angle sensor detection device.

[0028] Figure 7 Schematic diagram of the process of angle sensor accuracy detection method.

[0029] Description of reference numerals:

[0030] 100, base;

[0031] 200, bracket;

[0032] 300, motor; 301, hollow rotating platform; 302, reference angle sensor; 402, measured angle sensor; 400, cylinder No. 1; 401, upper gripper;

[0033] 500, carrier; 501, loading trough; 502, lifting trough;

[0034] 600, lifting cylinder; 601, first mounting frame; 602, lifting claw;

[0035] 700, No. 2 cylinder; 701, second mounting frame; 702, lower clamping jaw;

[0036] 800, test unit; 801, third mounting frame; 802, No. 3 cylinder; 803, test device; 804, test probe. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0038] Example 1, with reference to Figure 1 - Figure 6, which is the first embodiment of the present utility model, provides an angle sensor detection device, which includes a base 100, a bracket 200 is provided on one side of the base 100, and a motor 300 is fixedly connected to the top of the bracket 200, and the output end of the motor 300 is connected to a hollow rotating platform 301 through a coupling, which is used to slow down and stabilize the rotation of the detection device, thereby improving the torque and rigidity of the overall structure, and reducing problems such as sudden speed changes caused by motor movement and instability. A reference angle sensor 302 is provided at the lower end of the hollow rotating platform 301, which is used to monitor the output angle of the motor 300, so that the motor 300 is only used as a power source, replacing the motor 300 angle as a real angle feedback signal, thereby solving the problem that the motor 300 is directly used for angle control, the control accuracy is inaccurate and there is no closed-loop feedback, resulting in unstable actual control angle, causing structural shaking during the detection process, the detection angle is always fluctuating, and accurate detection cannot be achieved, effectively improving the detection device In order to improve the angle detection accuracy, an upper clamping mechanism is provided below the reference angle sensor 302 for fixing the product rotating arm, driving the product rotating arm to rotate and perform angle detection. A measured angle sensor 402 is provided below the upper clamping mechanism, and a carrier 500 is provided below the measured angle sensor 402. A lifting mechanism is provided at the lower end of the carrier 500 for lifting the product rotating arm so that the product rotating arm is separated from the carrier 500 for cooperating with rotation detection. A secondary clamping mechanism is provided on one side of the carrier 500 for clamping the electrical interface of the product rotating arm to ensure that the product rotating arm is stable and does not shake. By performing secondary positioning and contour clamping on the product rotating arm, the problem of offset during detection of the product rotating arm is solved, thereby further improving the angle detection accuracy of the detection device. A test unit 800 is provided on one side of the secondary clamping mechanism for connecting the electrical interface of the product rotating arm and reading the data signal of the measured angle sensor 402 during rotation.

[0039] The upper clamping mechanism includes a No. 1 cylinder 400 fixedly connected to the bottom of the reference angle sensor 302. The output end of the No. 1 cylinder 400 is fixedly connected to the upper clamping jaw 401. The No. 1 cylinder 400 controls the clamping and release of the product rotating arm by the upper clamping jaw 401.

[0040] The secondary clamping mechanism includes a second mounting frame 701 fixedly connected to the base 100. The upper end of the second mounting frame 701 is fixedly connected to the second cylinder 700. The output end of the second cylinder 700 is fixedly connected to the lower clamping jaw 702. The second cylinder 700 controls the clamping and release of the product rotating arm by the lower clamping jaw 702.

[0041] The lifting mechanism includes a first mounting frame 601 fixedly connected to the base 100. The upper end of the first mounting frame 601 is fixedly connected to a lifting cylinder 600. The output end of the lifting cylinder 600 is fixedly connected to a lifting claw 602 for clamping or supporting the product rotating arm and cooperating with the lifting cylinder 600 to lift or pull down the product rotating arm.

[0042] The carrier 500 is fixedly connected to the bracket 200. The carrier 500 is provided with a loading slot 501 and a lifting slot 502. The lifting claw 602 is located in the lifting slot 502 and is used to lift the product rotating arm.

[0043] The test unit 800 includes a third mounting frame 801 fixedly connected to the top of the base 100. A No. 3 air cylinder 802 is fixedly connected to the top of the third mounting frame 801. The output end of the No. 3 air cylinder 802 is fixedly connected to a test device 803. The test device 803 is a prior art device. Its working principle and structure are not described here. The test device 803 includes a test probe 804. The No. 3 air cylinder 802 controls the separation or connection of the test probe 804 with the electrical interface of the product rotating arm.

[0044] When in use, the product rotating arm is placed on the carrier 500, and the product rotating arm is lifted and separated from the carrier 500 by the lifting mechanism, and then the product rotating arm is fixed by the upper clamping mechanism and the secondary clamping mechanism. The test probe 804 is controlled by the No. 3 cylinder 802 to connect with the electrical interface of the product rotating arm, and the motor 300 is started to rotate to start the detection of the angular accuracy of the product rotating arm.

[0045] Example 2, reference Figure 7 , the angle sensor detection device provided in Example 1 is further optimized, which includes an angle sensor accuracy detection method, including:

[0046] Step 1: Send instructions to the motion control card through the host computer. The motion control card controls the motor to rotate accordingly according to the instructions. The rotation of the motor drives the rotation of the reference angle sensor and the measured angle sensor and ensures the synchronization of the motion.

[0047] Step 2: When the reference angle sensor and the measured angle sensor are rotated to different angles, the angle signals are output to a data acquisition instrument (analog output signal) or an oscilloscope (digital output signal);

[0048] Step 3: The data acquisition instrument and oscilloscope then feed back the collected angle signal to the host computer;

[0049] Step 4: The host computer analyzes and judges the obtained angle information to accurately obtain the output accuracy of the measured angle sensor.

[0050] Note: The host computer controls the programmable power supply to supply power to the reference angle sensor and the measured angle sensor.

[0051] This approach solves two problems:

[0052] 1. Use a high-precision reference angle sensor as the actual angle, and synchronously collect the outputs of the reference angle sensor and the measured angle sensor to avoid the problems of inaccurate reference and comparison angles and asynchronous output signals;

[0053] 2. Use data acquisition card and oscilloscope to synchronously collect the output signal, avoiding the problem of asynchronous signal processing. Different output signals can be detected synchronously, and are compatible with analog output and digital output.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. An angle sensor detection device, characterized in that: include, A base (100) is provided on one side of the base (100), a bracket (200) is fixedly connected to the top of the bracket (200) with a motor (300), an output end of the motor (300) is provided with a hollow rotating platform (301), a reference angle sensor (302) is provided at the lower end of the hollow rotating platform (301), an upper clamping mechanism is provided below the reference angle sensor (302), a measured angle sensor (402) is provided below the upper clamping mechanism, a carrier (500) is provided below the measured angle sensor (402), a jacking mechanism is provided at the lower end of the carrier (500), a secondary clamping mechanism is provided on one side of the carrier (500), and a test unit (800) is provided on one side of the secondary clamping mechanism.

2. The angle sensor detection device according to claim 1, wherein: The upper clamping mechanism comprises a No. 1 cylinder (400) fixedly connected below the reference angle sensor (302), and an output end of the No. 1 cylinder (400) is fixedly connected to an upper clamping jaw (401).

3. The angle sensor detection device according to claim 2, wherein: The secondary clamping mechanism comprises a second mounting frame (701) fixedly connected to the base (100), the upper end of the second mounting frame (701) is fixedly connected to a second cylinder (700), and the output end of the second cylinder (700) is fixedly connected to a lower clamping jaw (702).

4. The angle sensor detection device according to claim 3, wherein: The lifting mechanism comprises a first mounting frame (601) fixedly connected above the base (100); the upper end of the first mounting frame (601) is fixedly connected to a lifting cylinder (600); and the output end of the lifting cylinder (600) is fixedly connected to a lifting claw (602).

5. The angle sensor detection device according to claim 4, wherein: The carrier (500) is fixedly connected to the bracket (200), and a material loading groove (501) and a lifting groove (502) are provided inside the carrier (500), and the lifting claw (602) is located in the lifting groove (502).

6. The angle sensor detection device according to claim 5, wherein: The test unit (800) comprises a third mounting frame (801) fixedly connected above the base (100); a third air cylinder (802) is fixedly connected above the third mounting frame (801); an output end of the third air cylinder (802) is fixedly connected to a test device (803); and the test device (803) comprises a test probe (804).

7. The angle sensor detection device according to claim 6, wherein: The motor (300) and the hollow rotating platform (301) are connected via a coupling.

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