CN216771927U

CN216771927U - Voice coil motor service life detection device and voice coil motor service life detection system

Info

Publication number: CN216771927U
Application number: CN202123416911.7U
Authority: CN
Inventors: 是晓铖; 陆万里
Original assignee: Jiangsu Dingzhi Intelligent Control Technology Co ltd
Current assignee: Jiangsu Dingzhi Intelligent Control Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-17
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a voice coil motor service life detection device which comprises a horizontally arranged base, wherein a motor mounting plate is vertically arranged at one end of the base, a stop block is arranged at the other end of the base, a guide rail is horizontally arranged on the base and is positioned between the motor mounting plate and the stop block, a sliding block is connected onto the guide rail in a sliding manner, a movable plate is fixedly connected onto the sliding block through a screw, a grating sensor is arranged on a bottom plate, and a grating matched with the grating sensor is arranged on the side wall of the movable plate. The utility model provides a voice coil motor service life detection device and a voice coil motor service life detection system, wherein a testing mechanism part and an electrical control part are integrated, and the voice coil motor service life detection device and the voice coil motor service life detection system are used for simulating and testing the service life of a voice coil motor.

Description

Voice coil motor service life detection device and voice coil motor service life detection system

Technical Field

The utility model relates to a voice coil motor service life detection device and system, and belongs to the technical field of motor detection.

Background

Currently, a voice coil motor is a special form of direct drive motor. The voice coil motor has the characteristics of simple structure, small volume, high speed, high acceleration response speed and the like, so the voice coil motor is widely applied to industrial production and daily life. This voice coil motor life-span detection device is directed against be linear type voice coil motor.

In order to ensure the reliability and performance index of the motor operation, the motor needs to be subjected to a sampled life test, the life test of the voice coil motor is performed for a long time under the condition of medium and low load, the aging degree of the motor is inspected when the test is finished, and whether the service life of the motor meets the requirement or not is judged. The existing service life testing device can cause the condition that the motor is taken off the shaft when the motor loses steps, and the voice coil motor and the top of the leading-out shaft are damaged to a certain extent. In addition, when testing the service life of the voice coil motor, generally in an open environment, for example, patent publication No. CN204789942U adopts a vertical direction to test the voice coil motor by continuously running, the influence of the external environment on the motor may cause inaccurate service life test of the motor or cause damage of the motor, and further the accuracy of service life detection of the voice coil motor is low. If a closed detection environment is adopted, the detection process is complicated and the detection cost is high. Meanwhile, the service life of the voice coil motor is detected by adopting the testing tool, the output shaft of the voice coil motor is in operation in the vertical direction, the output shaft pushes the sliding block to slide on the vertically placed guide rail, the stress of the output shaft of the voice coil motor is large, and the service life detection accuracy of the voice coil motor is also influenced.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a voice coil motor service life detection device and a voice coil motor service life detection system, wherein a testing mechanism part and an electrical control part are integrated for simulating and testing the service life of a voice coil motor.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

the utility model provides a voice coil motor life-span detection device, it includes the base, the one end level of base is provided with the motor mounting panel, the vertical dog that is provided with of the other end of base, the base is improved level and is provided with the guide rail just the guide rail is located between motor mounting panel and the dog, sliding connection has the slider on the guide rail, through screw fixedly connected with movable plate on the slider, be provided with the grating sensor on the base, be provided with on the lateral wall of movable plate with grating sensor matched with grating.

Furthermore, a groove is formed in the base, and the guide rail is fixed in the groove through a screw.

Further, the check block is fixed in the groove through a screw, a protruding block used for sliding in the groove is arranged at the bottom of the check block, a threaded hole is formed in the groove, and a mounting through hole used for the screw to penetrate through is formed in the check block.

Furthermore, a reading head is arranged on the side wall of the grating sensor opposite to the grating, and the installation height of the grating is the same as the height of the reading head of the corresponding grating sensor.

Furthermore, a force sensor used for sensing the impact of the sliding block is arranged on the side wall, opposite to the sliding block, of the stop block.

Further, the rotor plate comprises a horizontal plate and a vertical plate, the horizontal plate is fixed on the sliding block through a screw, and the vertical plate is fixedly connected with a motor shaft of the motor to be measured through a connecting shaft.

Furthermore, the motor to be measured is fixed on the motor mounting plate, and the excircle positioning spigot of the motor to be measured is matched with the mounting positioning spigot of the motor mounting plate.

A voice coil motor life detection system comprises a plurality of driving assemblies and a plurality of voice coil motor life detection devices.

Furthermore, each drive assembly is electrically connected with a voice coil motor service life detection device, and the drive assembly comprises a driver and a controller.

Furthermore, drive assembly passes through wiring end assembly and voice coil motor life-span detection device and measured motor electric connection, be provided with multiunit inlet wire and outlet on the wiring end assembly, voice coil motor life-span detection device and measured motor link to each other with the inlet wire on the wiring end assembly through the wire respectively, drive assembly passes through the wire and links to each other with the outlet wire on the wiring end assembly.

By adopting the technical scheme, the voice coil motor is adopted to push the sliding block to slide in the horizontal direction, so that the stress condition of the motor shaft of the voice coil motor is reduced, and the accuracy of the service life detection of the voice coil motor is improved. The grating sensor is added and connected with the driving assembly, so that the motor can be stopped to run when the motor loses steps forwards, and the motor is protected. Meanwhile, a force sensor is arranged on the stop block, and the motor can stop or give an alarm after being impacted. Thereby reduce external environment to voice coil motor's influence, avoid voice coil motor's the inaccurate or condition that leads to the motor to damage of life-span test. The utility model adds preventive protection mechanisms such as a grating sensor, a stop block, a force sensor and the like, adds preventive measures and improves the safety.

The utility model integrates the drive control into a whole, saves the space and improves the integration level of the equipment. The whole test part has visual data, the operation interface is humanized, and the readability is strong. The use and the maintenance are more facilitated, the structure is integrated with the control part, and the later management is more convenient. Overall structure is more pleasing to the eye, and more lightweight, the visuality is stronger, and efficiency of software testing is higher.

Drawings

FIG. 1 is a schematic structural diagram of a voice coil motor life detection system according to the present invention;

FIG. 2 is a schematic structural diagram of a voice coil motor life detection apparatus according to the present invention;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of another embodiment of a voice coil motor life detection apparatus according to the present invention;

FIG. 5 is a schematic structural view of a motor mounting plate of the present invention;

FIG. 6 is a schematic view of the structure of the motor under test of the present invention;

FIG. 7 is a schematic view of a matching structure of a tested motor and a motor mounting plate according to the present invention;

FIG. 8 is a schematic diagram of a grating sensor according to the present invention;

fig. 9 is a schematic diagram of the structure of the terminal assembly of the present invention.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Example one

As shown in fig. 2 to 7, the present embodiment provides a voice coil motor life detection device, which includes a base 1 horizontally disposed, a motor mounting plate 2 is vertically disposed at one end of the base 1, a stop dog 3 is disposed at the other end of the base 1, a guide rail 4 is horizontally disposed on the base 1, the guide rail 4 is located between the motor mounting plate 2 and the stop dog 3, a groove 11 is disposed on the base 1, and the guide rail 4 is fixed in the groove 11 through a screw. The guide rail 4 is connected with a slide block 5 in a sliding way, and the guide rail 4 and the slide block 5H7 are matched with each other in tolerance, so that the mounting and positioning accuracy of the whole transmission structure is ensured. The slider 5 is fixedly connected with a rotor plate 6 through a screw, the base 1 is provided with a grating sensor 7, and the side wall of the rotor plate 6 is provided with a grating 8 matched with the grating sensor 7.

The voice coil motor life detection device has the following installation process: the grating sensor 7 is fastened on the base 1 through screws, the grating 8 is attached to the side wall of the movable plate 6, the guide rail 4 is arranged in the groove 11 of the base 1 and then fastened on the base 1 through screws, the sliding block 5 is installed at the tail end of the guide rail 4, the movable plate 6 is fastened on the sliding block 5 through screws, the motor shaft and the movable plate 6 are connected through the connecting shaft 9, and the tested voice coil motor is connected on the motor mounting plate 2 through screws.

As shown in fig. 1 and 2, the stopper 3 is fixed in the groove 11 by a screw, a bump for sliding in the groove 11 is arranged at the bottom of the stopper 3, a threaded hole is arranged in the groove 11, a mounting through hole for the screw to pass through is arranged on the stopper 3, and the position of the stopper 3 can be determined according to the maximum position of the motor 10 to be tested.

As shown in fig. 8, a reading head 71 is disposed on a side wall of the grating sensor 7 opposite to the grating 8, and the grating 8 is mounted at the same height as the reading head 71 of the corresponding grating sensor 7.

The structure of the testing device assembly is simple, the grating sensor 7 is arranged and used for testing the service life working condition of the voice coil motor in real time, the grating sensor 7 can detect the change of the external environment in real time, when sundries or other objects influence the running speed of the motor in the outside, the grating sensor 7 detects that the moving position and the moving time of the grating 8 on the movable plate 6 change and transmits the change to the controller, and the controller controls the alarm or controls the voice coil motor which is detecting to stop detecting.

As shown in fig. 4, a force sensor 31 for sensing the impact of the slider 5 is arranged on the side wall of the stopper 3 opposite to the slider 5, the force sensor 31 is arranged on the contact surface of the stopper 3 and the slider 5, and when the pressure between the slider 5 and the stopper 3 is greater than a set threshold value, the detection of the voice coil motor is alarmed or stopped, so that the influence of the external environment on the voice coil motor is reduced, the condition that the life test of the voice coil motor is inaccurate or the motor is damaged is avoided, and the accuracy of the life detection of the voice coil motor is improved.

As shown in fig. 4 and 7, the rotor plate 6 includes a horizontal plate 61 and a vertical plate 62, wherein the horizontal plate 61 and the vertical plate 62 are perpendicular to each other, the horizontal plate 61 is fixed on the slider 5 by a screw, and the vertical plate 62 of the rotor plate 6 is fixedly connected with the motor shaft of the motor 10 to be measured by the connecting shaft 9, so as to ensure that the motor shaft of the motor 10 to be measured and the connecting hole on the rotor plate 6 are coaxial, and the horizontal direction in the present application takes a ground plane as a reference.

As shown in fig. 5 and 6, the motor 10 to be tested is fixed on the motor mounting plate 2 by screws, and the outer circle positioning spigot 101 of the motor 10 to be tested is matched with the mounting positioning spigot 21 of the motor mounting plate 2, so that the motor shaft of the motor 10 to be tested is aligned with the mounting hole of the vertical plate 62 of the rotor plate 6, and the concentricity is ensured.

Example two

As shown in fig. 1, the present embodiment provides a life detection system for a voice coil motor, which includes a plurality of driving assemblies 102, and a plurality of life detection devices 104 of the voice coil motor according to the first embodiment. One set of voice coil motor detecting system can set up simultaneously and connect a plurality of voice coil motor life-span detection device 104, has improved detection efficiency.

As shown in fig. 1, each driving assembly 102 is electrically connected to a voice coil motor life detection device 104, and the driving assembly 102 includes a driver and a controller, which are integrated into the driving assembly 102, the driver is used for driving the motor 10 to be tested to operate, and the controller is used for controlling the operating state of the motor 10 to be tested. The drive assembly 102 is connected with a computer through a usb interface to control the motor, and data such as running times, distance and the like can also be directly checked through the computer.

The test items are set by connecting a computer with the drive assembly 102 through a serial port, setting parameters are written into a ROM in the controller, the motor can be controlled after the setting is finished, and the motor can be used for a long time after the setting is finished. The data of the operation can be recorded by the grating 8, and the tested motor 10 can also be stopped at the time of overtravel by the stop 3 and the force sensor 31.

The detection principle is as follows: after the drive parameters are set, the tested motor 10 is installed on the testing device assembly, the power supply is connected to enable the drive assembly 102 to control the motor to start reciprocating operation, meanwhile, the drive receives the operation data feedback of the motor, long-term off-line operation can be achieved, and the data can be checked through direct connection after the test is finished.

As shown in fig. 9, the driving assembly 102 is electrically connected to the voice coil motor life detection device 104 and the motor 10 to be tested through the terminal assembly 103, the terminal assembly 103 is provided with a plurality of groups of wire inlets X1 and wire outlets X2, the voice coil motor life detection device 104 and the motor 10 to be tested are respectively connected to the wire inlets X1 on the terminal assembly 103 through wires, and the driving assembly 102 is connected to the wire outlets X2 on the terminal assembly 103 through wires. All the wire harnesses are connected through the wiring terminal assembly, so that the wire ends are prevented from being exposed, and the wiring is more standard.

The technical problems, technical solutions and advantages of the present invention have been described in detail with reference to the above embodiments, and it should be understood that the above embodiments are merely exemplary and not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a voice coil motor life-span detection device which characterized in that: it includes base (1) that the level set up, the vertical motor mounting panel (2) that is provided with of one end of base (1), the other end of base (1) is provided with dog (3), base (1) is improved level and is provided with guide rail (4) just guide rail (4) are located between motor mounting panel (2) and dog (3), sliding connection has slider (5) on guide rail (4), through screw fixedly connected with slide plate (6) on slider (5), be provided with grating sensor (7) on base (1), be provided with on the lateral wall of slide plate (6) with grating sensor (7) matched with grating (8).

2. A voice coil motor life detection apparatus as claimed in claim 1, wherein: a groove (11) is formed in the base (1), and the guide rail (4) is fixed in the groove (11) through a screw.

3. A voice coil motor life detection apparatus as claimed in claim 2, wherein: the stop block (3) is fixed in the groove (11) through a screw, a convex block used for sliding in the groove (11) is arranged at the bottom of the stop block (3), a threaded hole is formed in the groove (11), and a mounting through hole used for the screw to pass through is formed in the stop block (3).

4. A voice coil motor life detection apparatus as claimed in claim 1, wherein: the side wall of the grating sensor (7) opposite to the grating (8) is provided with a reading head (71), and the installation height of the grating (8) is the same as the height of the reading head (71) of the corresponding grating sensor (7).

5. A voice coil motor life detection apparatus as claimed in claim 1, wherein: and a force sensor (31) for sensing the impact of the sliding block (5) is arranged on the side wall of the stop block (3) opposite to the sliding block (5).

6. A voice coil motor life detection apparatus as claimed in claim 1, wherein: the dynamic plate (6) comprises a horizontal plate (61) and a vertical plate (62), the horizontal plate (61) is fixed on the sliding block (5) through a screw, and the vertical plate (62) is fixedly connected with a motor shaft of the motor (10) to be measured through a connecting shaft (9).

7. A voice coil motor life detection apparatus as claimed in claim 6, wherein: the motor (10) to be measured is fixed on the motor mounting plate (2), and the excircle positioning spigot (101) of the motor (10) to be measured is matched with the mounting positioning spigot (21) of the motor mounting plate (2).

8. A voice coil motor life detection system which characterized in that: comprising a plurality of drive assemblies (102), and a plurality of voice coil motor life detection devices according to any one of claims 1 to 7.

9. A voice coil motor life detection system as claimed in claim 8, wherein: each driving assembly (102) is electrically connected with a voice coil motor life detection device, and each driving assembly (102) comprises a driver and a controller.

10. A voice coil motor life detection system as claimed in claim 8, wherein: the voice coil motor service life detection device is characterized in that the driving assembly (102) is electrically connected with the voice coil motor service life detection device and a motor (10) to be detected through the terminal assembly (103), a plurality of groups of wire inlets (X1) and wire outlets (X2) are arranged on the terminal assembly (103), the voice coil motor service life detection device and the motor (10) to be detected are respectively connected with the wire inlets (X1) on the terminal assembly (103) through wires, and the driving assembly (102) is connected with the wire outlets (X2) on the terminal assembly (103) through wires.