Auxiliary adjusting system for installation of magnetic encoder

Abstract

The utility model discloses an auxiliary adjusting system for magnetic encoder installation. The auxiliary adjusting system comprises a driving mechanism, a driving circuit, a magnetic mechanism, a magnetic encoder, an oscilloscope and a position adjusting device. The driving mechanism is connected with the magnetic mechanism; the output end of the driving circuit is connected with the input end of the driving mechanism, and the driving circuit is used for driving the driving mechanism to drive the magnetic mechanism to rotate. The magnetic encoder is used for obtaining real-time angle data and real-time speed data of the magnetic mechanism, the output end of the magnetic encoder is connected with the input end of the driving circuit and the input end of the oscilloscope, and the magnetic encoder is used for sending the obtained data to the driving circuit and the oscilloscope; the position adjusting device is connected with the magnetic mechanism, and the oscilloscope is used for displaying the speed fluctuation of the magnetic mechanism so that the position adjusting device can adjust the position of the magnetic mechanism. The magnetic encoder installation auxiliary adjusting system provided by the utility model can improve the stability and accuracy of the whole system.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor drive, and relates to a mounting adjustment system, in particular to a magnetic encoder mounting auxiliary adjustment system. Background Art

[0002] In the field of motor drive technology, most motors do not have control functions themselves and need the help of motor drivers and encoders to realize their operation. There are three types of encoders commonly found on the market: optical encoders, magnetic encoders, and inductive encoders. At present, magnetic encoders are widely used in servo drive motors and stepper closed-loop motors due to their good stability and high cost performance. Magnetic encoders are used in motor drive applications to make the motor start and stop flexible, fast and stable, and accurately positioned, which can greatly improve the motor control accuracy and stability.

[0003] However, the installation of encoders in existing motor drive systems has the following disadvantages: (1) The magnet is installed at an angle, which causes errors in the resolution angle of the magnetic encoder, resulting in poor operating stability of the motor control system; (2) The magnet cannot be installed in alignment with the magnetic encoder chip, which causes errors in the resolution angle of the magnetic encoder, resulting in poor operating accuracy of the motor control system.

[0004] In view of this, there is an urgent need to design a new magnetic encoder installation auxiliary adjustment system to overcome at least part of the above-mentioned defects of the existing magnetic encoder installation auxiliary adjustment system. Utility Model Content

[0005] The utility model provides a magnetic encoder installation auxiliary adjustment system, which can improve the stability and accuracy of the entire system; at the same time, it can solve the problems of the original magnet installation method, such as no reference method, skewed magnet installation position, inability to align the magnet installation with the chip, and magnet installation beyond the chip sensing range.

[0006] In order to solve the above technical problems, according to one aspect of the utility model, the following technical solution is adopted:

[0007] A magnetic encoder installation auxiliary adjustment system, the magnetic encoder magnet installation adjustment system comprises: a driving mechanism, a driving circuit, a magnetic mechanism, a magnetic encoder, an oscilloscope and a position adjustment device;

[0008] The driving mechanism is connected to the magnetic mechanism; the output end of the driving circuit is connected to the input end of the driving mechanism, so as to drive the driving mechanism to drive the magnetic mechanism to rotate;

[0009] The magnetic encoder is used to obtain real-time angle data and real-time speed data of the magnetic mechanism, and the output end of the magnetic encoder is respectively connected to the input end of the drive circuit and the input end of the oscilloscope, so as to send the acquired data to the drive circuit and the oscilloscope;

[0010] The position adjustment device is connected to the magnetic mechanism, and the oscilloscope is used to display the speed fluctuation of the magnetic mechanism for the position adjustment device to adjust the position of the magnetic mechanism.

[0011] As an implementation mode of the utility model, the magnetic encoder is provided with a PWM pin, and the magnetic encoder sends information to the oscilloscope through the PWM pin.

[0012] As an implementation mode of the utility model, the driving mechanism is a motor, and the driving circuit is a motor driver; the motor driver receives data sent by the magnetic encoder to control the motor to rotate at a constant speed.

[0013] As an implementation mode of the utility model, the position adjustment device includes a platform for fixing the magnetic mechanism, so that a staff can manually adjust the position of the magnetic mechanism.

[0014] As an implementation mode of the utility model, the position adjustment device includes a second driving mechanism, a second transmission mechanism, a fixing frame, a position adjustment control circuit and a first communication module; the position adjustment device is connected to a control terminal, and the control terminal can communicate with the position adjustment control circuit;

[0015] The output end of the position adjustment control circuit is connected to the input end of the second driving mechanism, and can control the action of the second driving mechanism;

[0016] The second driving mechanism is connected to the second transmission mechanism, the second transmission mechanism is connected to the fixing frame, and the fixing frame is used to fix the magnetic mechanism; the second driving mechanism can adjust the position of the fixing frame through the second transmission mechanism under the control of the control terminal, thereby adjusting the position of the magnetic mechanism.

[0017] As an implementation mode of the utility model, the oscilloscope includes a display module, and the display module is used to display the speed fluctuation size of the magnetic mechanism.

[0018] As an implementation manner of the present utility model, the magnetic mechanism is a magnet.

[0019] The beneficial effects of the utility model are as follows: the magnetic encoder installation auxiliary adjustment system proposed by the utility model can improve the stability and accuracy of the entire system; at the same time, it can solve the problems of the original magnet installation method having no reference method, the skewed magnet installation position, the magnet installation being unable to align with the chip, and the magnet installation being beyond the chip sensing range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the composition of the magnetic encoder installation auxiliary adjustment system in one embodiment of the utility model.

[0021] Figure 2 This is a flow chart of adjusting the magnetic encoder installation auxiliary adjustment system in one embodiment of the utility model.

[0022] Figure 3 This is a diagram showing the setting of an oscilloscope with the persistence function turned on in one embodiment of the utility model.

[0023] Figure 4 This is an oscilloscope display of a magnet offset PWM diagram in one embodiment of the present invention.

[0024] Figure 5 This is an oscilloscope display of a magnet alignment PWM diagram in one embodiment of the present invention. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0026] In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0027] The description in this section is only for several typical embodiments, and the present invention is not limited to the scope of the embodiments. The same or similar prior art means and some technical features in the embodiments are mutually replaced and are also within the scope of the present invention.

[0028] The term "connection" as used in the specification includes both direct connection and indirect connection, such as connection through some active devices, passive devices or electrically conductive media; it may also include connection through other active devices or passive devices known to those skilled in the art on the basis of achieving the same or similar functional purposes, such as connection through circuits or components such as switches and follower circuits.

[0029] The utility model discloses a magnetic encoder installation auxiliary adjustment system. Figure 1 This is a schematic diagram of the composition of the magnetic encoder installation auxiliary adjustment system in one embodiment of the utility model; please refer to Figure 1The magnetic encoder magnet installation and adjustment system includes: a driving mechanism 3, a driving circuit 2, a magnetic mechanism 4, a magnetic encoder 1, an oscilloscope 5 and a position adjustment device 6.

[0030] The driving mechanism 3 is connected to the magnetic mechanism 4; the output end of the driving circuit 2 is connected to the input end of the driving mechanism 3, so as to drive the driving mechanism 3 to drive the magnetic mechanism 4 to rotate. The magnetic encoder 1 is used to obtain the real-time angle data and real-time speed data of the magnetic mechanism 4. The output end of the magnetic encoder 1 is respectively connected to the input end of the driving circuit 2 and the input end of the oscilloscope 5, so as to send the acquired data to the driving circuit 2 and the oscilloscope 5. The position adjustment device 6 is connected to the magnetic mechanism 4, and the oscilloscope 5 is used to display the speed fluctuation of the magnetic mechanism 4, so as to adjust the position of the magnetic mechanism 4 by the position adjustment device.

[0031] In one embodiment of the utility model, the magnetic encoder 1 is provided with a PWM pin, and the magnetic encoder 1 sends information to the oscilloscope 5 through the PWM pin. The oscilloscope 5 receives the speed data given by the PWM pin of the magnetic encoder 1 to display the speed fluctuation. The oscilloscope 5 may include a display module, and the display module is used to display the speed fluctuation of the magnetic mechanism.

[0032] The driving mechanism 3 may be a motor, the driving circuit 2 may be a motor driver, and the magnetic mechanism 4 may be a magnet; the motor driver receives data sent by the magnetic encoder 1 to control the motor to rotate at a constant speed.

[0033] The position adjustment device 6 may include a platform for fixing the magnetic mechanism, so that the staff can manually adjust the position of the magnetic mechanism; the position of the magnet 4 can be adjusted by the speed fluctuation size given by the oscilloscope 5. Alternatively, the position adjustment device 6 includes a second drive mechanism, a second transmission mechanism, a fixed frame, a position adjustment control circuit and a first communication module; the position adjustment device is connected to a control terminal, and the control terminal can communicate with the position adjustment control circuit; the output end of the position adjustment control circuit is connected to the input end of the second drive mechanism, which can control the action of the second drive mechanism; the second drive mechanism is connected to the second transmission mechanism, and the second transmission mechanism is connected to the fixed frame, and the fixed frame is used to fix the magnetic mechanism; the second drive mechanism can adjust the position of the fixed frame through the second transmission mechanism under the control of the control terminal, thereby adjusting the position of the magnetic mechanism. That is, when debugging the installation position of the magnet, it can be adjusted manually or remotely and electrically.

[0034] Figure 2 This is a flowchart of the adjustment of the magnetic encoder installation auxiliary adjustment system in one embodiment of the utility model; please refer to Figure 2In one use scenario of the utility model, the adjustment process of the magnetic encoder installation auxiliary adjustment system is as follows: after the motor driver is connected, the motor is controlled to run at a constant speed according to the angle signal received from the magnetic encoder, and the motor drives the magnet to rotate at a constant speed. When the installation position of the magnet is offset, the speed calculated by the magnetic encoder has a large fluctuation, which is output to the oscilloscope through the PWM pin; turn on the afterglow display function of the oscilloscope for reference Figure 3 , the duty cycle of the waveform on the oscilloscope has large jumps. Figure 4 , the magnet position adjustment device adjusts the magnet position accordingly according to the duty cycle change; when the magnet position is adjusted to align with the magnetic encoder, the speed calculated by the magnetic encoder no longer fluctuates, and is output to the oscilloscope through PWM. The waveform on the oscilloscope shows that the duty cycle tends to be stable. Figure 5 , magnet installation adjustment control is completed.

[0035] In summary, the magnetic encoder installation auxiliary adjustment system proposed in the utility model can improve the stability and accuracy of the entire system; at the same time, it can solve the problems in the original magnet installation method, such as the lack of a reference method, the skewed magnet installation position, the inability to align the magnet installation with the chip, and the magnet installation exceeding the chip sensing range.

[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The description and application of the utility model here are illustrative, and it is not intended to limit the scope of the utility model to the above-mentioned embodiments. The effects or advantages involved in the embodiments may not be embodied in the embodiments due to interference from various factors, and the description of the effects or advantages is not used to limit the embodiments. The deformation and changes of the embodiments disclosed here are possible, and the replacement of the embodiments and the various equivalent components are well known to those of ordinary skill in the art. It should be clear to those skilled in the art that the utility model can be implemented in other forms, structures, arrangements, proportions, and with other components, materials and parts without departing from the spirit or essential features of the utility model. Other deformations and changes can be made to the embodiments disclosed here without departing from the scope and spirit of the utility model.

Claims

1. A magnetic encoder installation auxiliary adjustment system, It is characterized in that The magnetic encoder magnet installation and adjustment system comprises: a driving mechanism, a driving circuit, a magnetic mechanism, a magnetic encoder, an oscilloscope and a position adjustment device; The driving mechanism is connected to the magnetic mechanism; the output end of the driving circuit is connected to the input end of the driving mechanism, so as to drive the driving mechanism to drive the magnetic mechanism to rotate; The magnetic encoder is used to obtain real-time angle data and real-time speed data of the magnetic mechanism, and the output end of the magnetic encoder is respectively connected to the input end of the drive circuit and the input end of the oscilloscope, so as to send the acquired data to the drive circuit and the oscilloscope; The position adjustment device is connected to the magnetic mechanism, and the oscilloscope is used to display the speed fluctuation of the magnetic mechanism for the position adjustment device to adjust the position of the magnetic mechanism.

2. The magnetic encoder installation auxiliary adjustment system according to claim 1, Features: The magnetic encoder is provided with a PWM pin, and the magnetic encoder sends information to the oscilloscope through the PWM pin.

3. The magnetic encoder installation auxiliary adjustment system according to claim 1, Features: The driving mechanism is a motor, and the driving circuit is a motor driver; the motor driver receives data sent by the magnetic encoder to control the motor to rotate at a constant speed.

4. The magnetic encoder installation auxiliary adjustment system according to claim 1, Features: The position adjustment device comprises a platform for fixing the magnetic mechanism, so that a worker can manually adjust the position of the magnetic mechanism.

5. The magnetic encoder installation auxiliary adjustment system according to claim 1, Features: The position adjustment device comprises a second driving mechanism, a second transmission mechanism, a fixing frame, a position adjustment control circuit and a first communication module; the position adjustment device is connected to a control terminal, and the control terminal can communicate with the position adjustment control circuit; The output end of the position adjustment control circuit is connected to the input end of the second driving mechanism, and can control the action of the second driving mechanism; The second driving mechanism is connected to the second transmission mechanism, the second transmission mechanism is connected to the fixing frame, and the fixing frame is used to fix the magnetic mechanism; the second driving mechanism can adjust the position of the fixing frame through the second transmission mechanism under the control of the control terminal, thereby adjusting the position of the magnetic mechanism.

6. The magnetic encoder installation auxiliary adjustment system according to claim 1, Features: The oscilloscope comprises a display module, and the display module is used to display the speed fluctuation magnitude of the magnetic mechanism.

7. The magnetic encoder installation auxiliary adjustment system according to claim 1, Features: The magnetic mechanism is a magnet.

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