An angular velocity sensor testing device

Abstract

The application discloses an angular velocity sensor testing device and belongs to the technical field of testing equipment. The angular velocity sensor testing device comprises a rotating wheel disc and a rotating swing arm. A plurality of annular grooves are formed in one side of the rotating wheel disc. An annular guide rail is arranged in the annular grooves. The annular guide rail is connected with a signal transmission assembly on one side of the annular groove opening. The power signal line of an upper computer is connected with the annular guide rail through the bottom surface of the annular groove. The signal transmission assembly can move along the annular groove. A transmission shaft is rotatably connected to the middle part of the rotating wheel disc. The rotating swing arm is connected with the end part of the transmission shaft. The end part of the signal transmission assembly is connected with the rotating swing arm. The rotating swing arm is provided with an angular velocity sensor on the outside. The shaft center of the angular velocity sensor coincides with the shaft center of the transmission shaft. The signal transmission mode of the wired angular velocity sensor in the transmission process is changed by arranging the rotating wheel disc, the annular guide rail and the signal transmission assembly. The winding problem of the wired angular velocity sensor in the signal transmission process is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of test equipment, more particularly, to a kind of angular velocity sensor testing device. BACKGROUND

[0002] Angular velocity sensor is a kind of precision, sensitive electronic components, when angular velocity sensor rotates along the set direction, accurately, real-time, comprehensive testing of the parameters of angular velocity sensor is the basic guarantee to master its performance.There are many methods to test the parameters of angular velocity sensor, and the corresponding devices for testing angular velocity sensor are also various, these devices are generally deficient in the following aspects:

[0003] 1) The test device is complicated in structure, high in cost and difficult to test.

[0004] 2) The test device is difficult to operate, the test product is single, the sensor assembly is complex, and a special tool is required.

[0005] 3) During the test process, it is easy to wind the wire for wired sensor test, which is not conducive to long-time test, and affects the test result and test accuracy.

[0006] In the prior art, CN201710604832.8 Angular velocity sensor testing device and system, CN201911337688.1 Angular velocity sensor testing tester and CN201420487226.4 Angular velocity sensor testing device improve the angular velocity sensor testing device and the measurement method from different angles. CN201710604832.8 Angular velocity sensor testing device and system, in addition to signal processing and transmission, although the rotation of the turntable and the rotating mechanism can simulate the working state of the angular velocity sensor, the turntable and the rotating mechanism still use the traditional rotating and clamping structure, and the above-mentioned winding technical problem still exists; CN201911337688.1 Angular velocity sensor testing tester uses the fixed rotation of the measuring turntable, but the winding problem is still not solved, so it is more for measuring angular velocity sensors without wires, and it cannot adapt to sensors of different structures and needs special fixtures for clamping; In CN201420487226.4 Angular velocity sensor testing device, the angular velocity sensor is fixed and wired by horizontal connecting rod, bearing disc, clamping seat and brush, the angular velocity sensor is installed in the inner cavity of the clamping seat, the front end of the angular velocity sensor abuts against multiple buffer blocks adhered to the clamping seat, and the rear end of the angular velocity sensor is provided with a gasket. Although it is convenient for angular velocity sensor clamping installation, it is very difficult to connect the three wires of the angular velocity sensor to the three brushes and communicate through the three brushes and the three copper strips, especially when different sizes of angular velocity sensors are continuously replaced for measurement. SUMMARY

[0007] The purpose of the present application is to provide an angular velocity sensor testing device to solve one of the problems raised in the background art, especially to solve the problem of winding the angular velocity sensor during testing.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0009] An angular velocity sensor testing device, comprising a rotating disc, a plurality of annular grooves are formed on one side of the rotating disc, an annular guide rail is arranged in the annular groove, and a signal transmission assembly is connected to the annular guide rail on the side of the annular groove opening. The upper computer power signal line passes through the bottom surface of the annular groove and is connected to the annular guide rail. The signal transmission assembly can move along the annular groove.

[0010] A rotating swing arm is rotatably connected to the transmission shaft in the rotating disc, the signal transmission assembly is connected to the rotating swing arm, the rotating swing arm is provided with an angular velocity sensor on the outside, and the shaft center of the angular velocity sensor coincides with the shaft center of the transmission shaft.

[0011] A drive mechanism, wherein the output shaft of the drive mechanism is connected to the transmission shaft.

[0012] Preferably, the signal transmission component includes a connecting rod, one end of which is connected to the rotating swing arm, and the other end is connected to a sleeve. The sleeve is made of insulating material, and a spring is provided inside the sleeve. A pin is provided on one side of the sleeve, and the end of the pin extends into the sleeve and is connected to the spring.

[0013] Preferably, the outer end of the ejector pin is spherical, the outer surface of the annular guide rail is arc-shaped, and the ejector pin slides along the annular guide rail.

[0014] Preferably, the rotating arm is made of insulating material, and the inner side of the rotating arm has multiple threaded holes, the end of the connecting rod is connected to the threaded holes, and the outer side has multiple terminal holes, the threaded holes are connected to the terminal hole A, the terminal hole A is provided in the terminal hole A, and the power line and signal line of the angular velocity sensor are connected to the terminal A.

[0015] Preferably, the rotating disk is made of insulating material, and a plurality of terminal hole B is opened on the side of the rotating disk opposite to the annular groove. The terminal hole B is connected to the annular groove, and a terminal B is provided in the terminal hole B. The terminal B is connected to the power line and signal line of the host computer.

[0016] Preferably, the driving mechanism includes a stepper motor, a reducer is provided on one side of the stepper motor, the output shaft of the stepper motor is connected to the input shaft of the reducer, the output shaft of the reducer is connected to the transmission shaft, and a speed regulator is also provided on the stepper motor.

[0017] Preferably, it also includes a base plate, the top surface of which is provided with a bracket, and the drive mechanism and the rotating disk are both mounted on the bracket.

[0018] Preferably, the rotating wheel and the drive shaft are connected by bearings.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) The present application changes the signal transmission mode of the wired angular velocity sensor in the transmission process by setting the rotating disc, the annular guide rail and the signal transmission assembly, solves the winding problem of the wired angular velocity sensor in the signal transmission process, the angular velocity sensor is installed on the rotating swing arm, the power supply and the transmission signal are transmitted through the binding post A- connecting rod-spring-needle-annular guide rail-binding post B-upper computer, when the driving mechanism drives the transmission shaft, the rotating swing arm and the angular velocity sensor to rotate, the signal transmission assembly will rotate with the rotating swing arm, that is, the connecting rod, the sleeve, the spring and the needle will rotate with the rotating swing arm, the head of the needle moves on the annular guide rail, under the action of the spring force, the contact force between the needle and the annular guide rail is ensured during high-speed rotation, the contact between the needle and the annular guide rail is good, the signal transmission is not affected, the rotating disc design is adopted, the continuity and real-time performance of the angular velocity sensor during testing are ensured, and the device has the advantages of simple structure, high reliability, low cost, fast operation, convenient maintenance and the like.

[0021] (2) The present application can prevent the motor from losing step when the speed of the stepping motor is low by the way of the stepping motor and the speed reducer, can more accurately control the angular velocity compared with the servo motor, can more accurately simulate the angular velocity change, has good effect for long time testing, the whole system has low cost, avoids the winding problem of the wired angular velocity sensor during testing, and conveniently and quickly completes the angular velocity control in testing. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the present application;

[0023] Figure 2 It is the rotating disc and rotating swing arm connecting structure schematic diagram of the present application;

[0024] Figure 3 It is the signal transmission assembly structure schematic diagram of the present application;

[0025] Figure 4 It is the rotating disc structure schematic diagram of the present application;

[0026] Figure 5 It is the rotating disc side sectional view schematic diagram of the present application.

[0027] Explanation of reference numerals in the drawing: 1, stepping motor; 2, speed reducer; 3, bottom plate; 4, support; 5, rotating disc; 6, transmission shaft; 7, rotating swing arm; 8, connecting rod; 9, spring; 10, needle; 11, sleeve; 12-1, binding post A; 12-2, binding post B; 13, annular guide rail; 14, bearing; 15, speed regulator; 16, angular velocity sensor. DETAILED DESCRIPTION

[0028] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0030] In the description of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Embodiment:

[0032] Please refer to Figures 1-5 A kind of angular velocity sensor testing device, including rotating wheel disc 5, rotating wheel disc 5 one side is provided with a plurality of annular grooves, annular groove is provided with annular guide rail 13, annular guide rail 13 is located at the opening side of annular groove and is connected with signal transmission component, the power signal line of host computer passes through the bottom surface of annular groove and is connected with annular guide rail 13, corresponding test result is analyzed by host computer software, angular velocity sensor parameter real-time, continuous, accurate measurement can be realized, signal transmission component can move along annular groove;

[0033] Rotary swing arm 7, transmission shaft 6 is rotatably connected in rotating wheel disc 5, rotary swing arm 7 is connected with the end of transmission shaft 6, the end of signal transmission component is connected with rotary swing arm 7, angular velocity sensor 16 is provided on the outer side of rotary swing arm 7, angular velocity sensor 16 is fixed on rotary swing arm 7 by screw, the axis of angular velocity sensor 16 coincides with the axis of transmission shaft 6, the transmission signal line of angular velocity sensor 16 is transmitted to host computer in turn through signal transmission component, annular guide rail 13, change the signal transmission mode of wired angular velocity sensor in transmission process, solve the problem of winding in the signal transmission process of wired angular velocity sensor;

[0034] A driving mechanism, an output shaft of the driving mechanism is connected with the transmission shaft 6, the transmission shaft 6 is driven to rotate by the driving mechanism, the transmission shaft 6 drives the rotary swing arm 7 to rotate, the rotary swing arm 7 drives the signal transmission assembly to move periodically on the annular guide rail 13, and the power line and the signal line are connected to the upper computer through the binding post.

[0035] In the application, the signal transmission assembly comprises a connecting rod 8, one end of the connecting rod 8 is connected with the rotary swing arm 7, and the other end of the connecting rod 8 is connected with a sleeve 11; the connecting rod 8 and the sleeve 11 are threadedly connected; the sleeve 11 is made of insulating material; a spring 9 is arranged in the sleeve 11; a thimble 10 is arranged on one side of the sleeve 11; the thimble 10 extends into the sleeve 11 and is connected with the spring 9 at the end; the spring 9 ensures that the thimble 10 is in good contact with the annular guide rail 13 during high-speed rotation, so that the signal transmission is not affected; the power supply and the signal transmission are transmitted through the binding post A 12-1-connecting rod 8-spring 9-thimble 10-annular guide rail 13-binding post B 12-2-upper computer, the signal transmission mode of the wired angular velocity sensor 16 during the transmission process is changed, and the winding problem during the signal transmission process of the wired angular velocity sensor is solved.

[0036] In the application, the outer end of the thimble 10 is spherical, the outer side of the annular guide rail 13 is arc-shaped, the thimble 10 slides along the annular guide rail 13, the head of the thimble 10 is inserted into the annular groove of the rotary wheel disc 5 and is in contact with the annular guide rail 13, and the cooperation between the thimble 10 and the annular guide rail 13 ensures the signal transmission when the thimble 10 moves along the annular guide rail 13.

[0037] In the application, the rotary swing arm 7 is made of insulating material, a plurality of threaded holes are formed in the inner side of the rotary swing arm 7, the end of the connecting rod 8 is connected in the threaded hole, a plurality of binding post holes are formed in the outer side of the rotary swing arm 7, the threaded hole is in communication with the binding post hole A, the binding post A 12-1 is arranged in the binding post hole A, the power line and the signal line of the angular velocity sensor 16 are connected on the binding post A 12-1, the binding post A 12-1 and the connecting rod 8 are in conduction, and the signal of the angular velocity sensor 16 is transmitted to the connecting rod 8 through the binding post A 12-1.

[0038] In the application, the rotary wheel disc 5 is made of insulating material, a plurality of binding post holes B are formed in the side, away from the annular groove, of the rotary wheel disc 5, the binding post hole B is in communication with the annular groove, the binding post B 12-2 is arranged in the binding post hole B, the power line and the signal line of the upper computer are connected on the binding post B 12-2, the binding post B 12-2 and the annular guide rail 13 are in conduction, and the signal transmitted to the annular guide rail 13 is transmitted to the upper computer through the binding post B 12-2.

[0039] In the application, the driving mechanism comprises a stepper motor 1, a reducer 2 arranged on one side of the stepper motor 1, an output shaft of the stepper motor 1 connected with an input shaft of the reducer 2, an output shaft of the reducer 2 connected with a transmission shaft 6, a speed regulator 15 further arranged on the stepper motor 1, and an angular velocity sensor 16. When the angular velocity sensor 16 is tested, the stepper motor 1 provides a rotating speed, the rotating speed of the stepper motor 1 is reduced by the reducer 2, the stepper motor 1 is regulated by the speed regulator 15, the angular velocity ω of the transmission shaft 6 can be calculated according to the rotating speed of the stepper motor 1 and the reduction ratio of the reducer 2, and the step length of the stepper motor 1 and the subdivision of the driver can adjust the accuracy of the whole system.

[0040] In the application, a bottom plate 3 is further included, a support 4 is arranged on the top surface of the bottom plate 3, the driving mechanism and the rotating wheel disc are arranged on the support 4, and the bottom plate 3 and the support 4 are connected together by welding to form a support frame of the whole testing device.

[0041] In the application, the rotating wheel disc 5 and the transmission shaft 6 are connected by a bearing 14, the transmission shaft 6 is facilitated to rotate relative to the rotating wheel disc 5, and the shaft centers of the stepper motor 1, the reducer 3, the bearing 14, the transmission shaft 6 and the rotating wheel disc 5 are on the same plane.

[0042] In the application, when the angular velocity sensor 16 is tested, the stepper motor 1 provides a rotating speed, the rotating speed of the stepper motor 1 is reduced by the reducer 2, the stepper motor 1 is regulated by the speed regulator 15, the angular velocity ω of the transmission shaft 6 can be calculated according to the rotating speed of the stepper motor 1 and the reduction ratio of the reducer 2, the step length of the stepper motor 1 and the subdivision of the driver can adjust the accuracy of the whole system, the angular velocity sensor 16 is installed on a rotating swing arm 7, the power supply and the transmission signal are transmitted through a wiring post A 12-1- a connecting rod 8- a spring 9- a thimble 10- an annular guide rail 13- a wiring post B 12-2- an upper computer, the signal transmission mode of the wired angular velocity sensor in the transmission process is changed, and the winding problem in the signal transmission process of the wired angular velocity sensor is solved; when the driving mechanism drives the transmission shaft 6, the rotating swing arm 7 and the angular velocity sensor 16 to rotate, the signal transmission assembly will rotate with the rotating swing arm 7, that is, the connecting rod 8, the sleeve 11, the spring 9 and the thimble 10 will rotate with the rotating swing arm 7, the head of the thimble 10 is moved on the annular guide rail 13, and under the elastic force of the spring 9, the contact force between the thimble 10 and the annular guide rail 13 in the high-speed rotating process is ensured, the thimble 10 and the annular guide rail 13 are in good contact, and the signal transmission is not affected.

[0043] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An angular velocity sensor testing apparatus, characterized by, include: A rotating wheel (5) has multiple annular grooves on one side. An annular guide rail (13) is provided in the annular groove. A signal transmission component is connected to the annular guide rail (13) located on the side of the opening of the annular groove. The power signal line of the host computer passes through the bottom surface of the annular groove and is connected to the annular guide rail (13). The signal transmission component can move along the annular groove. A rotating swing arm (7) is rotatably connected to a drive shaft (6) in the middle of the rotating disk (5). The rotating swing arm (7) is connected to the end of the drive shaft (6). The end of the signal transmission component is connected to the rotating swing arm (7). An angular velocity sensor (16) is provided on the outside of the rotating swing arm (7). The axis of the angular velocity sensor (16) coincides with the axis of the drive shaft (6). A drive mechanism, the output shaft of which is connected to the transmission shaft (6); The signal transmission component includes a connecting rod (8), one end of which is connected to the rotating swing arm (7), and the other end is connected to a sleeve (11). The sleeve (11) is made of insulating material, and a spring (9) is provided inside the sleeve (11). A pin (10) is provided on one side of the sleeve (11), and the end of the pin (10) extends into the sleeve (11) and is connected to the spring (9). The rotating arm (7) is made of insulating material. Multiple threaded holes are opened on the inner side of the rotating arm (7). The end of the connecting rod (8) is connected to the threaded hole. Multiple terminal holes are opened on the outer side. The threaded hole is connected to the terminal hole A. Terminal A (12-1) is provided in the terminal hole A. The power line and signal line of the angular velocity sensor (16) are connected to the terminal A (12-1). The rotating disk (5) is made of insulating material. The rotating disk (5) has multiple terminal holes B on the side away from the annular groove. The terminal holes B are connected to the annular groove. A terminal B (12-2) is provided in the terminal hole B. The terminal B (12-2) is connected to the power line and signal line of the host computer.

2. A rotational velocity sensor testing apparatus according to claim 1, wherein: The outer end of the ejector pin (10) is spherical, the outer surface of the annular guide rail (13) is arc-shaped, and the ejector pin (10) slides along the annular guide rail (13).

3. A rotational velocity sensor testing apparatus as claimed in claim 1, wherein: The driving mechanism includes a stepper motor (1), a reducer (2) is provided on one side of the stepper motor (1), the output shaft of the stepper motor (1) is connected to the input shaft of the reducer (2), the output shaft of the reducer (2) is connected to the transmission shaft (6), and a speed regulator (15) is also provided on the stepper motor (1).

4. The angular velocity sensor testing device according to claim 1, characterized in that: It also includes a base plate (3), on the top surface of which a bracket (4) is provided, and the drive mechanism and the rotating wheel are both provided on the bracket (4).

5. The angular velocity sensor testing device according to claim 1, characterized in that: The rotating disk (5) and the drive shaft (6) are connected by a bearing (14).

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