CN220472608U - Actuator calibration device and actuator test equipment - Google Patents

Abstract

The utility model discloses an actuator calibration device and an actuator test device, wherein the actuator calibration device comprises a test terminal and a driving mechanism; the driving mechanism is in communication connection with the test terminal, and the output end of the driving mechanism is connected with the actuator to be tested. According to the utility model, when the driving control signal output by the testing terminal is received through the driving mechanism, the to-be-tested actuator is driven to sequentially rotate to the first target angle and the second target angle, the testing terminal obtains the first angle measurement signal and the second angle measurement signal output by the angle sensor when the to-be-tested actuator rotates to the first target angle and the second target angle, and the testing terminal outputs corresponding angle calibration signals to the angle sensor according to the first angle measurement signal and the second angle measurement signal, so that the calibration of the angle sensor in the to-be-tested actuator is completed, the calibration of the to-be-tested actuator is realized through a two-point calibration method, and the calibration efficiency is improved.

Description

Actuator calibration device and actuator test equipment

Technical Field

The utility model relates to the technical field of non-intelligent turbine electric control actuator testing, in particular to an actuator calibration device and actuator testing equipment.

Background

The angle of the automobile turbocharging electric control actuator can be detected and calibrated before production or delivery. However, the existing calibration equipment controls the actuator to reach the target voltage according to the voltage signal output by the actuator through the PID so as to calculate the difference value between the angle of the output rocker arm of the actuator and the target angle, and then recalculates parameters according to the difference value so as to program into the sensor in the actuator, so that repeated calibration is needed to approach the target angle, and the calibration efficiency is low.

Disclosure of Invention

The utility model mainly aims to provide an actuator calibration device, which aims to solve the problem of low calibration efficiency of an angle sensor in an actuator.

In order to achieve the above object, the present utility model provides an actuator calibration device applied to an actuator test apparatus, the actuator test apparatus including a test fixture for fixing an actuator to be tested, the actuator to be tested including an angle sensor for measuring an angle of the actuator to be tested when rotating, the actuator calibration device including:

a test terminal;

the driving mechanism is in communication connection with the test terminal, the output end of the driving mechanism is connected with the to-be-tested actuator, and the driving mechanism is used for driving the to-be-tested actuator to sequentially rotate to a first target angle and a second target angle when receiving a driving control signal output by the test terminal;

the test terminal is used for acquiring a first angle measurement signal and a second angle measurement signal which are output by the angle sensor when the to-be-tested actuator rotates to a first target angle and a second target angle; and the test terminal outputs corresponding angle calibration signals to the angle sensor according to the first angle measurement signals and the second angle measurement signals.

In an embodiment, the driving mechanism comprises a servo motor and a coupler, and the servo motor is in transmission connection with the actuator to be tested through the coupler.

In an embodiment, the actuator calibration device includes a data acquisition card, a first end of the data acquisition card is connected with the angle sensor, a second end of the data acquisition card is connected with the test terminal, and the data acquisition card is used for acquiring the first angle measurement signal and the second angle measurement signal and outputting the first angle measurement signal and the second angle measurement signal to the test terminal.

In one embodiment, the actuator calibration device further comprises:

the communication module is connected with the test terminal, is also connected with the driving mechanism, and is used for receiving the driving control signal sent by the test terminal and outputting the driving control signal to the driving mechanism.

The utility model also provides an actuator test device, which comprises the test fixture and the actuator calibration device.

In one embodiment, the actuator test apparatus includes:

the torque sensor is connected with the test terminal and is used for measuring the torque of the actuator to be tested when the actuator to be tested rotates;

the test terminal is used for controlling the to-be-tested actuator to run to a third target angle, controlling the driving mechanism to drive the to-be-tested actuator to rotate to a first target angle, and receiving a first torque measurement signal measured and output by the torque sensor when the to-be-tested actuator is controlled to run to a fourth target angle;

the test terminal is also used for controlling the to-be-tested actuator to run to a fifth target angle, controlling the driving mechanism to drive the to-be-tested actuator to rotate to a second target angle, and receiving a second torque measurement signal measured and output by the torque sensor when the to-be-tested actuator is controlled to run to a sixth target angle;

the test terminal is also used for determining and prompting a torque test result of the actuator to be tested according to the first torque measurement signal and the second torque measurement signal.

In an embodiment, when the actuator test apparatus includes the data acquisition card, the actuator test apparatus further includes:

the controlled end of the switch circuit is connected with the test terminal through the data acquisition card, the first end of the switch circuit is connected with a power supply, and the second end of the switch circuit is connected with the to-be-tested actuator;

the test terminal is used for outputting an operation control signal to a controlled end of the switch circuit so as to switch on/off the switch circuit and adjust the operation angle of the to-be-tested actuator.

According to the technical scheme, when a driving control signal output by a test terminal is received by a driving mechanism, an actuator to be tested is driven to sequentially rotate to a first target angle and a second target angle, the test terminal obtains a first angle measurement signal and a second angle measurement signal output by an angle sensor when the actuator to be tested rotates to the first target angle and the second target angle, the test terminal calculates the sensitivity and the angle offset of the angle sensor according to the first angle measurement signal and the second angle measurement signal, and outputs a corresponding angle calibration signal to the angle sensor, so that calibration of the angle sensor in the actuator to be tested is completed, calibration of the actuator to be tested is completed through a two-point calibration method, and calibration efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall block diagram of one embodiment of an actuator calibration apparatus of the present utility model;

FIG. 2 is a block diagram of an embodiment of the actuator test apparatus of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Test terminal	70	Switching circuit
20	Driving mechanism	80	Power supply
				30	Actuator to be tested	21	Servo motor
40	Data acquisition card	22	Coupling device
				50	Communication module	31	Angle sensor
60	Torque sensor

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The angle of the automobile turbocharging electric control actuator can be detected and calibrated before production or delivery. However, the existing calibration equipment controls the actuator to reach the target voltage according to the voltage signal output by the actuator through the PID so as to calculate the difference value between the angle of the output rocker arm of the actuator and the target angle, and then recalculates parameters according to the difference value so as to program into the sensor in the actuator, so that repeated calibration is needed to approach the target angle, and the calibration efficiency is low.

In order to solve the above-mentioned problems, the present utility model proposes an actuator calibration device, which is applied to an actuator test device, wherein the actuator test device includes a test fixture, the test fixture is used for fixing an actuator 30 to be tested, the actuator 30 to be tested includes an angle sensor 31, and the angle sensor 31 is used for measuring an angle when the actuator 30 to be tested rotates.

Referring to fig. 1, in an embodiment of the present utility model, the actuator calibration apparatus includes:

a test terminal 10;

the driving mechanism 20 is in communication connection with the test terminal 10, an output end of the driving mechanism 20 is connected with the to-be-tested actuator 30, and the driving mechanism 20 is used for driving the to-be-tested actuator 30 to sequentially rotate to a first target angle and a second target angle when receiving a driving control signal output by the test terminal 10;

the test terminal 10 is configured to obtain a first angle measurement signal and a second angle measurement signal output by the angle sensor 31 when the to-be-tested actuator 30 rotates to a first target angle and a second target angle; the test terminal 10 outputs corresponding angle calibration signals to the angle sensor 31 according to the first angle measurement signal and the second angle measurement signal.

In this embodiment, the driving mechanism 20 may be implemented by any driving mechanism 20 that can drive the actuator 30 to be tested to rotate, for example, a servo motor 21 or a high-precision brushless motor. The test terminal 10 may be implemented using a computer or other device. The angle sensor 31 may be implemented by any angle sensor 31 that can measure the angle of rotation of the actuator 30 to be measured. The angle sensor 31 is used for detecting the angle, and a hole is formed in the body and can be matched with the shaft of the music instrument; when attached to the RCX, the angle sensor 31 counts once every 1/16 of a revolution of the shaft; when the shaft rotates in one direction, the count is increased, and when the rotation direction of the shaft changes, the count is decreased; the count is related to the initial position of the angle sensor 31. When the angle sensor 31 is initialized, its count value is set to 0, and it may be reset by programming.

In this embodiment, when receiving a driving control signal output by the test terminal 10, the driving mechanism 20 drives the to-be-tested actuator 30 to sequentially rotate to a first target angle and a second target angle, the angle sensor 31 in the to-be-tested actuator 30 sequentially measures the angle of the to-be-tested actuator 30 during rotation, and correspondingly outputs a first angle measurement signal and a second angle measurement signal to the test terminal 10, the test terminal 10 calculates the sensitivity and the angle offset of the angle sensor 31 according to the first angle measurement signal and the second angle measurement signal, and outputs a corresponding angle calibration signal to the angle sensor 31, that is, the test terminal 10 writes the calculated sensitivity and angle offset into the memory of the angle sensor 31, so that the angle sensor 31 outputs a corresponding calibrated measurement voltage value when measuring the rotation angle of the to-be-tested actuator 30, for example, when the angle of the to-be-tested actuator 30 is 100 degrees, the angle sensor 31 outputs a 10% voltage signal; when the angle of the to-be-measured actuator 30 is 300 degrees, the angle sensor 31 outputs 90% of voltage signals to complete the calibration of the to-be-measured actuator 30, and the calibration of the angle sensor 31 in the to-be-measured actuator 30 by the two-point calibration method is realized to improve the calibration efficiency.

According to the technical scheme, when a driving control signal output by the test terminal 10 is received through the driving mechanism 20, the to-be-tested actuator 30 is driven to sequentially rotate to a first target angle and a second target angle, the test terminal 10 acquires a first angle measurement signal and a second angle measurement signal output by the angle sensor 31 when the to-be-tested actuator 30 rotates to the first target angle and the second target angle, the test terminal 10 calculates the sensitivity and the angle offset of the angle sensor 31 according to the first angle measurement signal and the second angle measurement signal, and outputs a corresponding angle calibration signal to the angle sensor 31, so that the calibration of the angle sensor 31 in the to-be-tested actuator 30 is completed, the calibration of the to-be-tested actuator 30 is completed through a two-point calibration method, and the calibration efficiency is improved.

In practical application, the calibration device performs calibration by driving the internal motor of the to-be-measured actuator 30, but because the internal motor is a brushed motor, the rocker angle output by the to-be-measured actuator 30 cannot be accurately controlled, so that the error of the calibration result is larger. Thus, the present embodiment adopts the servo motor 21 to control the rocker angle output by the actuator 30 to be measured, so as to reduce the error of the calibration result.

For this purpose, referring to fig. 2, in an embodiment, the drive mechanism 20 comprises a servomotor 21 and a coupling 22, the servomotor 21 being in driving connection with the actuator 30 to be tested via the coupling 22.

In this embodiment, the servo motor 21 is in transmission connection with the to-be-tested actuator 30 through the coupling 22, the test terminal 10 is connected with the servo motor 21, and when the test terminal 10 controls the servo motor 21 to operate, the servo motor 21 drives the to-be-tested actuator 30 to rotate together, so that the servo motor 21 drives the to-be-tested actuator 30 to sequentially rotate to a first target angle and a second target angle, the rocker angle output by the to-be-tested actuator 30 is controlled through the servo motor 21, and the calibration qualification rate is improved.

Referring to fig. 2, in an embodiment, the actuator calibration device includes a data acquisition card 40, a first end of the data acquisition card 40 is connected to the angle sensor 31, a second end of the data acquisition card 40 is connected to the test terminal 10, and the data acquisition card 40 is used for acquiring the first angle measurement signal and the second angle measurement signal and outputting them to the test terminal 10.

In this embodiment, the data acquisition card 40 may be implemented by any data acquisition card 40 that can automatically acquire analog or digital signals to be tested on the device. The data acquisition card 40 is a computer expansion card capable of realizing a data acquisition function, and can be connected to a computer through an ethernet or various wireless networks and other buses. It can be understood that the data acquisition card 40 acquires the first angle measurement signal and the second angle measurement signal when the angle sensor 31 measures the rotation of the actuator 30 to be measured, and outputs the first angle measurement signal and the second angle measurement signal to the test terminal 10 for the test terminal 10 to perform data analysis or process to calculate the sensitivity and the angle offset of the angle sensor 31.

Referring to FIG. 2, in one embodiment, the actuator calibration apparatus further comprises:

the communication module 50 is connected with the test terminal 10, the communication module 50 is further connected with the driving mechanism 20, and the communication module 50 is configured to receive the driving control signal sent by the test terminal 10 and output the driving control signal to the driving mechanism 20.

In this embodiment, the communication module 50 may be implemented by a communication module 50 such as a bluetooth, WIFI or RS485 module. It can be understood that the test terminal 10 establishes a communication connection with the driving mechanism 20 through the communication module 50, and the test terminal 10 sends a driving control signal to the driving mechanism 20 through the communication module 50 to control the driving mechanism 20 to drive the actuator 30 to be tested to rotate.

The utility model also provides an actuator test device, which comprises a test fixture and the actuator calibration device; the specific structure of the actuator calibration device refers to the above embodiments, and since the present actuator test apparatus adopts all the technical solutions of all the embodiments, at least the advantages brought by the technical solutions of the embodiments are provided, and are not described in detail herein.

Referring to fig. 2, in one embodiment, the actuator test apparatus includes:

a torque sensor connected to the test terminal 10, the torque sensor being used to measure the torque of the actuator 30 to be tested when it rotates;

the test terminal 10 is configured to control the to-be-tested actuator 30 to operate to a third target angle, control the driving mechanism 20 to drive the to-be-tested actuator 30 to rotate to a first target angle, and receive a first torque measurement signal measured and output by the torque sensor when the to-be-tested actuator 30 is controlled to operate to a fourth target angle;

the test terminal 10 is further configured to control the to-be-tested actuator 30 to operate to a fifth target angle, control the driving mechanism 20 to drive the to-be-tested actuator 30 to rotate to a second target angle, and then control the to-be-tested actuator 30 to operate to a sixth target angle, and receive a second torque measurement signal measured and output by the torque sensor;

the test terminal 10 is further configured to determine a torque test result of the actuator under test 30 according to the first torque measurement signal and the second torque measurement signal, and prompt the result.

In this embodiment, the torque sensor may be implemented by any torque sensor that can measure the torque when the actuator 30 to be measured rotates. The torque sensor is used for detecting the torque moment perception on various rotating or non-rotating mechanical parts, can convert the physical change of the torque force into an accurate electric signal, and has higher measurement accuracy. Compared with the method of fixing the actuator 30 to be tested by the electromagnet, the method of fixing the actuator 30 to be tested by the driving mechanism 20 has lower cost.

It can be understood that the third target angle, the fourth target angle, the fifth target angle and the sixth target angle can be set according to practical situations, for example, during the torque testing process of the to-be-tested actuator 30, the testing terminal 10 firstly controls the to-be-tested actuator 30 to operate to a 20% angle position, then controls the driving mechanism 20 to drive the to-be-tested actuator 30 to rotate to a first target angle, then the testing terminal 10 controls the to-be-tested actuator 30 to operate to a 40% angle position, at this time, because the driving mechanism 20 is kept at the first target angle, the to-be-tested actuator 30 generates torque, and the testing terminal 10 receives the first torque measurement signal measured and output by the torque sensor; then, the test terminal 10 firstly controls the to-be-tested actuator 30 to operate to 80% of the angle position, then controls the driving mechanism 20 to drive the to-be-tested actuator 30 to rotate to a second target angle, the driving mechanism 20 is kept at the second target angle, then the test terminal 10 controls the to-be-tested actuator 30 to operate to 60% of the angle position, and the test terminal 10 receives a second torque measurement signal measured and output by the torque sensor; the test terminal 10 compares the torque measured values corresponding to the first torque measured signal and the second torque measured signal with a preset torque measured value, and if the torque of the to-be-tested actuator 30 is determined to be qualified, the to-be-tested actuator 30 can be taken down and placed in a regular manner for standby by displaying a prompt of 'test passing'; if the torque test of the to-be-tested actuator 30 is determined to be unqualified, a prompt of 'test failure' is displayed, namely, the to-be-tested actuator 30 is regarded as a defective product, namely, the defective product labels are required to be attached and placed uniformly, so that the visual test result greatly improves the test efficiency of staff. In addition, the test terminal 10 can record the test result of the to-be-tested executor 30 to generate a test report, so that a user can check the corresponding test result when needed, and the traceability of the test data is improved.

Referring to fig. 2, in an embodiment, when the actuator test apparatus includes the data acquisition card 40, the actuator test apparatus further includes:

the controlled end of the switch circuit 70 is connected with the test terminal 10 through the data acquisition card 40, the first end of the switch circuit 70 is connected with the power supply 80, and the second end of the switch circuit 70 is connected with the actuator 30 to be tested;

the test terminal 10 is configured to output an operation control signal to a controlled end of the switch circuit 70 to turn on/off the switch circuit 70, so as to adjust an operation angle of the to-be-tested actuator 30.

In this embodiment, the switching circuit 70 may be implemented by using a switching circuit 70 such as a transistor or a relay. It can be understood that the test terminal 10 can input an operation control signal to the controlled end of the switch circuit 70 through the data acquisition card 40, and control the first end and the second end of the switch circuit 70 to be turned on, so as to adjust the operation angle of the to-be-tested actuator 30, so that the to-be-tested actuator 30 can be operated to the third target angle, the fourth target angle, the fifth target angle and the sixth target angle, thereby realizing the control of the test terminal 10 to the to-be-tested actuator 30 through the switch circuit 70.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (7)

1. The utility model provides an executor calibration device, its characterized in that is applied to executor test equipment, executor test equipment includes test fixture, test fixture is used for fixed executor that awaits measuring, the executor that awaits measuring includes angle sensor, angle sensor is used for measuring the angle when the executor that awaits measuring rotates, executor calibration device includes:

a test terminal;

the driving mechanism is in communication connection with the test terminal, the output end of the driving mechanism is connected with the to-be-tested actuator, and the driving mechanism is used for driving the to-be-tested actuator to sequentially rotate to a first target angle and a second target angle when receiving a driving control signal output by the test terminal;

the test terminal is used for acquiring a first angle measurement signal and a second angle measurement signal which are output by the angle sensor when the to-be-tested actuator rotates to a first target angle and a second target angle; and the test terminal outputs corresponding angle calibration signals to the angle sensor according to the first angle measurement signals and the second angle measurement signals.

2. The actuator calibration device of claim 1, wherein the drive mechanism comprises a servo motor and a coupling, the servo motor being drivingly connected to the actuator under test via the coupling.

3. The actuator calibration device of claim 1, wherein the actuator calibration device comprises a data acquisition card, a first end of the data acquisition card is connected with the angle sensor, a second end of the data acquisition card is connected with the test terminal, and the data acquisition card is used for acquiring the first angle measurement signal and the second angle measurement signal and outputting the first angle measurement signal and the second angle measurement signal to the test terminal.

4. The actuator calibration device of claim 1, further comprising:

the communication module is connected with the test terminal, is also connected with the driving mechanism, and is used for receiving the driving control signal sent by the test terminal and outputting the driving control signal to the driving mechanism.

5. An actuator test apparatus comprising a test fixture and an actuator calibration device according to any one of claims 1-4.

6. The actuator test apparatus of claim 5, wherein the actuator test apparatus comprises:

the torque sensor is connected with the test terminal and is used for measuring the torque of the actuator to be tested when the actuator to be tested rotates;

the test terminal is used for controlling the to-be-tested actuator to run to a third target angle, controlling the driving mechanism to drive the to-be-tested actuator to rotate to a first target angle, and receiving a first torque measurement signal measured and output by the torque sensor when the to-be-tested actuator is controlled to run to a fourth target angle;

the test terminal is also used for controlling the to-be-tested actuator to run to a fifth target angle, controlling the driving mechanism to drive the to-be-tested actuator to rotate to a second target angle, and receiving a second torque measurement signal measured and output by the torque sensor when the to-be-tested actuator is controlled to run to a sixth target angle;

the test terminal is also used for determining and prompting a torque test result of the actuator to be tested according to the first torque measurement signal and the second torque measurement signal.

7. The actuator test apparatus of claim 6, wherein when the actuator test apparatus comprises a data acquisition card, the actuator test apparatus further comprises:

the controlled end of the switch circuit is connected with the test terminal through the data acquisition card, the first end of the switch circuit is connected with a power supply, and the second end of the switch circuit is connected with the to-be-tested actuator;

the test terminal is used for outputting an operation control signal to a controlled end of the switch circuit so as to switch on/off the switch circuit and adjust the operation angle of the to-be-tested actuator.