Motor calibration device

Abstract

The embodiment of the present application provides a motor calibration device for calibrating a motor, characterized in that it includes: a base, a fixing portion, a guide member and a limiting mechanism, wherein the motor is fixed to the base, the fixing portion is used to be fixedly connected to a load member in the motor, one end of the guide member is connected to the fixing portion, and the other end of the guide member extends outward along the axial direction of the motor, and the limiting mechanism is arranged on the base, and the limiting mechanism is used to limit the end of the guide member away from the motor so that the load member can only move along the axial direction of the motor. The motor calibration device provided in the embodiment of the present application can alleviate or solve the problem of inaccurate or even impossible calibration of the motor due to the load component of the load camera in the motor moving left and right along a plane perpendicular to the axial direction of the optical path when calibrating the motor.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of calibration devices, and in particular to a motor calibration device. Background Art

[0002] The camera module is an image input device that is widely used in camera shooting, mobile phone video, security monitoring and other fields. The quality of the camera is inevitably related to the camera module. With the continuous advancement of technology, the performance of the camera module is also constantly improving.

[0003] The camera module contains a motor. As one of the important components of the camera module, the motor mainly plays the role of accurately controlling the movement of the camera. The motor can drive the camera to move axially along the optical path of the camera module to achieve the focusing performance of the camera module. In some applications, in order to meet more performance requirements of the camera module, such as the anti-shake performance of the camera module, the motor is also required to drive the camera to move left and right along a plane perpendicular to the optical path axis.

[0004] When calibrating the above motor, since the load component of the load camera in the motor will move left and right along a plane perpendicular to the axis of the optical path, it will cause the motor to be calibrated inaccurately or even impossible to calibrate. Summary of the invention

[0005] An embodiment of the present application provides a motor calibration device, which can alleviate or solve the problem of inaccurate or even impossible calibration of the motor due to the load component of the load camera in the motor moving left and right along a plane perpendicular to the axis of the optical path.

[0006] An embodiment of the present application provides a motor calibration device for calibrating a motor, and is characterized in that it includes: a base, a fixing portion, a guide member and a limiting mechanism, wherein the motor is fixed to the base, the fixing portion is used to be fixedly connected to a load member in the motor, one end of the guide member is connected to the fixing portion, and the other end of the guide member extends outward along the axial direction of the motor, and the limiting mechanism is arranged on the base, and the limiting mechanism is used to limit the end of the guide member away from the motor so that the load member can only move along the axial direction of the motor.

[0007] The motor calibration device provided in the embodiment of the present application includes a base, a fixing part, a guide member and a limiting mechanism. The base is used to fix the motor and assemble the limiting mechanism. The fixing part can be regarded as a dummy lens fixedly connected to the load member in the motor. One end of the guide member is connected to the fixing part, and the other end of the guide member extends outward along the axial direction of the motor. The limiting mechanism is arranged outside the motor to limit the end of the guide member away from the motor so that the load member can only move along the axial direction of the motor. This can alleviate or solve the problem of inaccurate calibration or even inability to calibrate the motor in the related art.

[0008] In a possible embodiment, the limiting mechanism includes: a positioning member and a magnetic member. The positioning member is arranged along the axial direction of the motor, the guide member is arranged on one side of the positioning member, and the magnetic member is arranged on a side of the positioning member away from the guide member. The magnetic member and the guide member are magnetically attracted to each other so that the guide member is attached to the surface of the positioning member.

[0009] The positioning piece is arranged along the axial direction of the motor. When the motor is calibrated, the guide piece can fit the surface of the positioning piece and reciprocate along the axial direction of the motor. In addition, the magnetic piece and the guide piece are magnetically attracted. By adjusting the magnetic force of the magnetic piece to make it appropriate, the friction between the guide piece and the positioning piece can be reduced, which facilitates the calibration of the motor.

[0010] In a possible implementation, the positioning member includes: at least two positioning columns, and the at least two positioning columns are arranged at intervals along the axial direction of the motor.

[0011] Setting the positioning member in a columnar form can further reduce the friction between the guide member and the positioning member, making it easier to calibrate the motor.

[0012] In a possible implementation, the positioning member includes: two positioning posts, and the two positioning posts are spaced apart along the axial direction of the motor. This method is a comprehensive consideration of materials and effects.

[0013] In a possible implementation, the positioning member is a positioning plate, and the positioning plate is arranged along the axial direction of the motor.

[0014] In a possible implementation manner, the limiting mechanism includes a limiting member, the limiting member is arranged along the axial direction of the motor, the limiting member has a limiting ring, and the guide member passes through the limiting ring.

[0015] In this way, when calibrating the motor, the motor can only move along its axial direction, and no magnetic parts are required, thereby reducing the device cost and assembly cost.

[0016] In a possible implementation, the limiting member includes: at least two limiting columns, and the at least two limiting columns are arranged at intervals along the axial direction of the motor.

[0017] Setting the limiter in a columnar form can further reduce the friction between the guide member and the limiter, making it easier to calibrate the motor.

[0018] In a possible implementation manner, the limiting member includes: two limiting columns, and the two limiting columns are arranged at intervals along the axial direction of the motor. This method is a comprehensive consideration of materials and effects.

[0019] In a possible implementation manner, the limiting member is a limiting plate, and the limiting plate is arranged along the axial direction of the motor.

[0020] In a possible implementation, the limiting mechanism includes: at least two limiting portions, at least two of the limiting portions are arranged along the axial direction of the motor, and one end of the guide member away from the motor is clamped between the at least two limiting portions.

[0021] In this way, when calibrating the motor, the motor can only move along its axial direction, and no magnetic parts are required, thereby reducing the device cost and assembly cost.

[0022] In a possible implementation, the base includes: a first base, a second base and a third base, the second base and the third base are arranged on the first base, the motor is fixed to the second base, the limit mechanism is arranged on the third base, and the third base is slidably arranged on the first base along a plane perpendicular to the axial direction of the motor. This can realize calibration of multiple positions of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative labor.

[0024] Figure 1 It is a structural schematic diagram of a camera module in the related art;

[0025] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0026] Figure 3 for Figure 1 A top view of

[0027] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0028] Figure 5 It is a structural schematic diagram of a motor in the related art;

[0029] Figure 6 It is a schematic diagram of the exploded structure of a motor in the related art;

[0030] Figure 7 A schematic diagram of a motor calibration device provided in an embodiment of the present application calibrating a motor;

[0031] Figure 8 A schematic diagram of a motor calibration device provided in an embodiment of the present application calibrating a motor;

[0032] Fig. 9 A schematic diagram of a motor calibration device provided in an embodiment of the present application calibrating a motor;

[0033] Fig.10 for Fig. 9 A schematic diagram of the cross-sectional structure of the middle limiter;

[0034] Fig.11 A schematic diagram of a motor calibration device provided in an embodiment of the present application calibrating a motor.

[0035] Description of reference numerals:

[0036] 1- Camera module;

[0037] 11- Motor;

[0038] 111-mounting hole;

[0039] 112-external frame;

[0040] 113- Functional department;

[0041] 1131- first magnet;

[0042] 1132 - second magnet;

[0043] 1133-coil;

[0044] 1134-Ball;

[0045] 1135-magnetic conductive parts;

[0046] 114- load member;

[0047] 12-lens;

[0048] 13- bearing seat;

[0049] 131-assembly hole;

[0050] 14- Image sensor assembly;

[0051] 141-light-transmitting plate;

[0052] 142- Image sensor;

[0053] 143- electrical connector;

[0054] 15- bottom plate;

[0055] 200-Motor calibration device;

[0056] 210- base;

[0057] 211-first base;

[0058] 212- Second base;

[0059] 213-third base;

[0060] 220-fixed part;

[0061] 230-guide member;

[0062] 240-limiting mechanism;

[0063] 241- positioning piece;

[0064] 2411-Positioning column;

[0065] 2412- positioning piece;

[0066] 242-magnetic parts;

[0067] 243-limiting piece;

[0068] 2431-limiting ring;

[0069] 244-Limiting part. DETAILED DESCRIPTION

[0070] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0071] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0072] First, the main application scenarios of the motor 11 detected by the motor calibration device 200 in this application are briefly introduced.

[0073] The motor 11 is mainly used in the camera module 1. Figure 1 is a structural diagram of a camera module 1 in the related art, Figure 2 for Figure 1 Schematic diagram of the decomposition structure, refer to Figure 1 and Figure 2As shown, the camera module 1 includes: a motor 11, a lens 12, a bearing seat 13 and an image sensor assembly 14. The motor 11 has a mounting hole 111. The interior of the motor 11 is hollow to form a storage space. The lens 12 is mounted on the motor 11 through the mounting hole 111, and the lens 12 is at least partially located in the storage space in the motor 11. For example, the lens 12 can be completely located in the storage space of the motor 11. The lens 12 can also be partially located in the storage space of the motor 11, and the other part is exposed to the outside of the motor 11. The image sensor assembly 14 is arranged at the bottom of the motor 11.

[0074] Figure 3 for Figure 1 A top view of Figure 4 for Figure 3 AA section view, reference Figure 4 As shown, the light incident side of the lens 12 is located outside the motor 11, and the light emitting side of the lens 12 is located inside the motor 11. External ambient light enters the lens 12 from the light incident side of the lens 12. The lens 12 may be composed of one or more stacked lenses. The optical axis of the lens 12 passes through the center of the lens. The lens focuses the incident light, and the focused light is emitted from the light emitting side of the lens 12.

[0075] The image sensor assembly 14 is located on the light-emitting optical path of the lens 12. For example, the image sensor assembly 14 is located on the light-emitting side of the lens 12, and the optical axis of the lens 12 passes through the center of the image sensor assembly 14. The light emitted from the lens 12 enters the image sensor assembly 14, and the photoelectric conversion effect of the image sensor assembly 14 converts the emitted light signal into an electrical signal to realize the imaging function of the camera module 1.

[0076] Combination Figure 2 As shown, the camera module 1 may further include a bottom plate 15, which may be enclosed together with the housing of the motor 11 to form a receiving space. By removing the bottom plate 15, it is convenient to install the lens 12, the image sensor assembly 14 and other devices of the camera module 1 in the receiving space.

[0077] Reference Image Figure 2 and Figure 4 As shown, the image sensor assembly 14 may include a light-transmitting plate 141, an image sensor 142, and an electrical connector 143. The image sensor 142 is located at the light-exiting side of the lens 12, for example, the optical axis of the lens 12 passes through the center of the image sensor 142. The light emitted from the lens 12 is irradiated to the image sensor 142, and the image sensor 142 converts the emitted light signal into an electrical signal through photoelectric conversion, thereby realizing the imaging function of the camera module 1. Figure 2 and Figure 4 As shown, the image sensor 142 may be mounted on the base plate 15 .

[0078] The electrical connector 143 is used to electrically connect the image sensor 142 to an external circuit, and then, the image sensor 142 is controlled to work through the external circuit. Specifically, one end of the electrical connector 143 is connected to the image sensor 142, and the other end of the electrical connection is connected to the external circuit. For example, the other end of the electrical connector 143 is connected to a circuit board in an electronic device. The electrical connector 143 is used to electrically connect the image sensor 142 to an image processing unit (Image Signal Processing, ISP) on the circuit board, and the image processing unit (ISP) is electrically connected to a digital processing unit (Digital Signal Processing, DSP). Among them, the image processing unit (ISP) and the digital processing unit (DSP) can be separately arranged on the circuit board, or the image processing unit (ISP) and the digital processing unit (DSP) can be integrated together and arranged on the circuit board. When the user takes a photo, the processor on the circuit board controls the image sensor 142 to work. When taking a photo, the shutter is opened, and light passes through the lens 12 and the light-transmitting plate 141 to the image sensor 142. The light signal is converted into an electrical signal. The image sensor 142 transmits the electrical signal to the image processing unit (ISP) through the electrical connector 143 for processing. The image processing unit (ISP) converts the electrical signal into a digital image signal. The image processing unit (ISP) outputs the digital image signal to the digital processing unit (DSP) for processing. The digital processing unit (DSP) converts the digital signal into an image signal in a standard RGB, YUV or other format.

[0079] The light-transmitting plate 141 may be a transparent protective plate for protecting the image sensor 142 from damage. Alternatively, the light-transmitting plate 141 may be a filter plate for filtering out light of a specific wavelength, and the auxiliary lens 12 may enhance transmittance or cut off part of the light.

[0080] Continue to refer Figure 2 and Figure 4 As shown, the supporting seat 13 is arranged below the lens 12, and an assembly hole 131 is opened on the supporting seat 13 for setting a light-transmitting plate 141. The image sensor 142 is located below the light-transmitting plate 141. In this way, the light signal transmitted from the lens 12 can pass through the light-transmitting plate 141 and be incident on the imaging area of ​​the image sensor 142.

[0081] The motor 11, as a driving device of the camera module 1, can drive the lens 12 to move along the direction of its optical axis to achieve the focusing function of the camera module 1. With the advancement of technology, the motor 11 also needs to drive the lens 12 to move along a plane perpendicular to its optical axis.

[0082] Figure 5 is a schematic diagram of the structure of the motor 11 in the related art, Figure 6 is a schematic diagram of the exploded structure of the motor 11 in the related art, refer to Figure 5 and Figure 6 As shown, the motor 11 includes: an outer frame 112, a functional part 113 and a load member 114. The functional part 113 is disposed in the outer frame 112, and the load member 114 is disposed in the functional part 113. The load member 114 is provided with a mounting hole 111 for assembling the lens 12.

[0083] Specifically, a ball 1134 is arranged on the structural plane of the functional part 113, and the load member 114 is mounted on the ball 1134. The functional part 113 also includes a first magnet 1131, a second magnet 1132 and a coil 1133. The first magnet 1131 and the second magnet 1132 are arranged above or below the coil 1133 and are arranged parallel to the structural plane of the functional part 113. The load member 114 is engaged with the first magnet 1131 and the second magnet 1132. The first magnet 1131 and the second magnet 1132 can be magnets or magnetic steel. The magnetization direction of the first magnet 1131 and the magnetization direction of the second magnet 1132 are perpendicular or parallel to the plane where the optical axis of the lens 12 is located, and the magnetization direction of the first magnet 1131 is opposite to the magnetization direction of the second magnet 1132. Among them, the magnetization direction is the direction from the north pole (that is, the N pole) to the south pole (that is, the S pole).

[0084] A magnetic conductive member 1135 is provided between the first magnet 1131 and the second magnet 1132, which can be understood as the first magnet 1131 and the second magnet 1132 are fixedly connected to two opposite sides of the magnetic conductive member 1135 respectively. The magnetic conductive member 1135 can be a yoke made of stacked silicon steel sheets. Therefore, by providing the magnetic conductive member 1135 between the first magnet 1131 and the second magnet 1132, the magnetic flux intensity between the first magnet 1131 and the second magnet 1132 can be increased, the driving strength of the load 114 can be improved, and the leakage magnetic flux can be reduced to improve the energy utilization rate. In addition, the first magnet 1131 and the second magnet 1132 can be integrated into one by the magnetic conductive member 1135, which is conducive to the overall assembly of the magnetic conductive member 1135, the first magnet 1131, and the second magnet 1132.

[0085] When the coil 1133 is energized, the first magnet 1131 and the second magnet 1132 generate a Lorentz force F parallel or perpendicular to the optical axis of the lens 12. 1 and F 2 , F 1 and F 2 Since the load member 114 is mounted on the ball 1134, the F 1 and F 2 The combined force can drive the load element 114 to move on the plane of the optical path of the lens 12 or on a plane perpendicular to the optical path. On this basis, the load element 114 can be driven to reciprocate by the current commutation of the coil 1133.

[0086] This type of motor 11 is a planar ball type, and can use the principle of different coils 1133 to generate different electric fields. When the electronic device camera module 1 shakes and causes image instability, the small electric field created can drive the load 114 to rotate in the opposite direction to offset the shake of the electronic device.

[0087] However, when calibrating a motor 11 such as this, during the calibration process, since the ball 1134 can move in any direction on the structural plane of the functional portion 113, it is impossible to determine the actual position of the load member 114. In addition, due to the imbalance of force during the movement, the load member 114 may not move along the axial direction of the motor 11 as expected, resulting in inaccurate calibration of the motor 11 or even failure to calibrate.

[0088] In view of this, an embodiment of the present application provides a motor calibration device 200, including: a fixing portion 220, a guide member 230 and a limiting mechanism 240, the fixing portion 220 is used to connect with the load member 114 in the motor 11, one end of the guide member 230 is connected to the fixing portion 220, and the other end extends outward along the axial direction of the motor 11, and the limiting mechanism 240 is used to limit the end of the guide member 230 away from the motor 11 so that the load member 114 can only move along the axial direction of the motor 11, thereby alleviating or solving the problem of inaccurate calibration or even inability to calibrate such motors 11.

[0089] The motor calibration device 200 provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0090] Figure 7 A schematic diagram of a motor calibration device 200 provided in an embodiment of the present application for calibrating a motor 11, see Figure 7 As shown, the motor calibration device 200 provided in the embodiment of the present application includes: a base 210 , a fixing portion 220 , a guide member 230 and a limiting mechanism 240 .

[0091] Specifically, the motor 11 is fixed on the base 210, and the fixing part 220 is fixedly connected to the load part 114 in the motor 11. The function of the load part 114 in the motor 11 is to install the lens 12. The fixing part 220 can be regarded as a fake lens fixedly connected to the load part 114. One end of the guide part 230 is connected to the fixing part 220, and the other end of the guide part 230 extends outward along the axial direction of the motor 11. The axial direction of the motor 11 refers to the axial direction of the mounting hole 111 in the load part 114 for assembling the lens 12.

[0092] The limiting mechanism 240 is disposed on the base 210 , and limits the end of the guide member 230 away from the motor 11 so that the load member 114 in the motor 11 can only move along the axial direction of the motor 11 .

[0093] It can be understood that the motor calibration device 200 provided in the embodiment of the present application includes a base 210, a fixing portion 220, a guide member 230 and a limiting mechanism 240. The base 210 is used to fix the motor 11 and assemble the limiting mechanism 240. The fixing portion 220 can be regarded as a false lens fixedly connected to the load member 114 in the motor 11. One end of the guide member 230 is connected to the fixing portion 220, and the other end of the guide member 230 extends outward along the axial direction of the motor 11. The limiting mechanism 240 is arranged on the outside of the motor 11, and the end of the guide member 230 away from the motor 11 is limited so that the load member 114 can only move along the axial direction of the motor 11. This can alleviate or solve the problem of inaccurate calibration or even inability to calibrate the motor 11 in the related art.

[0094] It should be noted that the motor calibration device 200 provided in the embodiment of the present application is not only applicable to the planar ball motor shown above, but is also applicable to any motor type in which the load member 114 cannot accurately move along the axial direction of the motor 11 during the calibration process.

[0095] It should be understood that Figure 7 The actual proportions of the various parts are not drawn in the figures, so the present application should not be limited to the proportions, dimensions, etc. described in the drawings. In addition, in the present application, "connection" or "electrical connection" can not only mean that the two are directly connected, but also that the two are connected through one or more intermediate devices. "Installation" in the present application can include any existing installation method. For example, one component can be fixed on, under or in another component by means of connectors (such as bolts, rivets, etc.) and / or adhesives. These understandings all fall within the scope of the embodiments of the present application.

[0096] Of course, this application does not stop here, please continue to refer to Figure 7 As shown, in some embodiments of the present application, the limiting mechanism 240 may include: a positioning member 241 and a magnetic member 242, the positioning member 241 is arranged along the axial direction of the motor 11, the guide member 230 is arranged on one side of the positioning member 241, and the magnetic member 242 is arranged on the side of the positioning member 241 away from the guide member 230.

[0097] For example, Figure 7 In accordance with Figure 7 Describing the direction of the plane, the guide member 230 is arranged on the lower side of the positioning member 241, and the magnetic member 242 is arranged on the side of the positioning member 241 away from the guide member 230, that is, the magnetic member 242 is arranged on the upper side of the positioning member 241, and the magnetic member 242 and the guide member 230 are magnetically attracted to each other so that the guide member 230 is attached to the surface of the positioning member 241.

[0098] Since the positioning member 241 is arranged along the axial direction of the motor 11, when the motor 11 is calibrated, the guide member 230 can fit the surface of the positioning member 241 and reciprocate along the axial direction of the motor 11. In addition, the magnetic member 242 and the guide member 230 are magnetically attracted to each other, and the magnetic force of the magnetic member 242 can be adjusted to make it suitable, so as to reduce the friction between the guide member 230 and the positioning member 241, thereby facilitating the calibration of the motor 11.

[0099] Continue to refer Figure 7 As shown, in some embodiments of the present application, the positioning member 241 may include: at least two positioning posts 2411, for example, the positioning posts 2411 may be two, three, or more than three. At least two positioning posts 2411 are arranged at intervals along the axial direction of the motor 11. It can be understood that the reason for setting at least two positioning posts 2411 and arranging them at intervals is that if only one positioning post 2411 is set, the load member 114 will not be able to move in the axial direction of the motor 11 as expected during the calibration of the motor 11.

[0100] It is easy to understand that setting the positioning member 241 in a columnar form can further reduce the friction between the guide member 230 and the positioning member 241, thereby facilitating the calibration of the motor 11.

[0101] Continue to refer Figure 7 As shown, in some embodiments of the present application, the number of the positioning posts 2411 is two, and the two positioning posts 2411 are arranged at intervals along the axial direction of the motor 11. This method is a comprehensive consideration of materials and effects.

[0102] Figure 8 A schematic diagram of a motor calibration device 200 provided in an embodiment of the present application for calibrating a motor 11, see Figure 8 As shown, the positioning member 241 can be in the form of a positioning plate 2412 , and the positioning plate 2412 is arranged along the axial direction of the motor 11 .

[0103] Fig. 9 A schematic diagram of a motor calibration device 200 provided in an embodiment of the present application calibrating a motor 11. Fig.10 for Fig. 9 The cross-sectional structure diagram of the middle stopper 243 is shown in FIG. Fig. 9 and Fig.10 As shown, in some embodiments of the present application, the limiting mechanism 240 includes a limiting member 243 , which is arranged along the axial direction of the motor 11 , and has a limiting ring 2431 , and the guide member 230 is passed through the limiting ring 2431 .

[0104] In this way, when the motor 11 is calibrated, the motor 11 can only move along its axial direction, and the magnetic component 242 may not be provided, thereby reducing the device cost and the assembly cost.

[0105] Similarly, the limiting member 243 can also be similar to the principle of the positioning member 241 described above. In some embodiments of the present application, the limiting member 243 may include: at least two limiting columns, and at least two limiting columns are arranged at intervals along the axial direction of the motor 11. The limiting member 243 is set in a columnar form, which can reduce the friction between the guide member 230 and the limiting member 243, and facilitate the calibration of the motor 11.

[0106] Similar to the positioning column 2411 , in some embodiments of the present application, there may be two limiting columns, which are spaced apart from each other along the axial direction of the motor 11 .

[0107] In some embodiments of the present application, the limiting member 243 may also be a limiting plate, and the setting direction of the limiting plate is along the axial direction of the motor 11.

[0108] Fig.11 A schematic diagram of a motor calibration device 200 provided in an embodiment of the present application for calibrating a motor 11, see Fig.11 As shown, in some embodiments of the present application, the limiting mechanism 240 may include: at least two limiting portions 244, at least two limiting portions 244 are arranged along the axial direction of the motor 11, and the end of the guide member 230 away from the motor 11 is clamped between the at least two limiting portions 244.

[0109] For example, Fig.11 As shown in , the limiting mechanism 240 includes two limiting parts 244, which are arranged along the axial direction of the motor 11, and the end of the guide member 230 away from the motor 11 is clamped between the two limiting parts 244. In this way, when calibrating the motor 11, the motor 11 can only move along its axial direction, and the magnetic member 242 may not be arranged, thereby reducing the device cost and the assembly cost.

[0110] Of course, in order to reduce the friction between the guide member 230 and the limiting portion 244, the limiting portion 244 may also be in a columnar form. In this case, at least two columnar limiting portions 244 need to be arranged on both sides of the guide member 230, so that the contact area between the guide member 230 and the limiting portion 244 is reduced, thereby reducing the friction between the guide member 230 and the limiting portion 244 and facilitating the calibration of the motor 11.

[0111] Of course, this application does not stop here, please continue to refer to Figure 7 As shown, in some embodiments of the present application, the base 210 may include: a first base 211 , a second base 212 and a third base 213 .

[0112] The first base 211 is used as a bearing member for the second base 212 and the third base 213. The second base 212 and the third base 213 are arranged on the first base 211, and the motor 11 is fixed on the second base 212. It is understood that the arrangement of the second base 212 is not limited to Figure 7 A second base 212 is respectively disposed at the four corners of the middle motor 11 , and any base 212 is sufficient to fix the motor 11 .

[0113] The limiting mechanism 240 is disposed on the third base 213. The third base 213 can be slidably disposed on the first base 211 along a plane perpendicular to the axial direction of the motor 11. Figure 7 The description of the direction of the plane can be understood as the third base 213 can move up and down, so that the calibration of multiple positions of the motor 11 can be realized.

[0114] It should be noted that the first base 211 and the second base 212 are only used to distinguish their uses. In some embodiments of the present application, the first base 211 and the second base 212 can be integrally formed into a whole.

[0115] The directional terms mentioned in the embodiments of the present application, such as "inside", "outside", etc., are only referenced to the directions of the drawings. Therefore, the directional terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, unless otherwise specified in the present application, "multiple" in the present application refers to two or more.

[0116] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0117] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0118] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A motor calibration device, used for calibrating a motor, characterized in that: include: A base, a fixing part, a guide part and a limiting mechanism, wherein the motor includes a functional part and a load part; The motor is fixed to the base, the fixing portion is used to be fixedly connected to the load member in the motor, one end of the guide member is connected to the fixing portion, and the other end of the guide member extends outward along a first axial direction of the motor, and the first axial direction of the motor is set to be the axial direction of the mounting hole in the load member for assembling the lens; The limiting mechanism is disposed on the base, and is used to limit the end of the guide member away from the motor so that the load member can only move along the second axial direction of the motor; A ball is arranged on the structural plane in the functional part, and the load member is mounted on the ball; the ball is used to move in any direction on the structural plane of the functional part, and the second axial direction of the motor includes a preset direction in which the ball moves on the structural plane.

2. The motor calibration device according to claim 1, characterized in that: The limiting mechanism comprises: a positioning member and a magnetic member; The positioning member is arranged along a first axial direction of the motor, the guide member is arranged on one side of the positioning member, and the magnetic member is arranged on a side of the positioning member away from the guide member; The magnetic member and the guide member are magnetically attracted to each other so that the guide member is attached to the surface of the positioning member.

3. The motor calibration device according to claim 2, characterized in that: The positioning member includes at least two positioning columns, and the at least two positioning columns are arranged at intervals along a first axial direction of the motor.

4. The motor calibration device according to claim 3, characterized in that: The positioning member includes two positioning columns, and the two positioning columns are arranged at intervals along a first axial direction of the motor.

5. The motor calibration device according to claim 2, characterized in that: The positioning member is a positioning plate, and the positioning plate is arranged along a first axial direction of the motor.

6. The motor calibration device according to claim 1, characterized in that: The limiting mechanism comprises a limiting member, and the limiting member is arranged along a first axial direction of the motor; The limiting member has a limiting ring, and the guiding member is passed through the limiting ring.

7. The motor calibration device according to claim 6, characterized in that: The limiting member includes: at least two limiting columns, and the at least two limiting columns are arranged at intervals along the first axial direction of the motor.

8. The motor calibration device according to claim 7, characterized in that: The limiting member includes two limiting columns, and the two limiting columns are arranged at intervals along the first axial direction of the motor.

9. The motor calibration device according to claim 6, characterized in that: The limiting member is a limiting plate, and the limiting plate is arranged along the first axial direction of the motor.

10. The motor calibration device according to claim 1, characterized in that: The limiting mechanism comprises: at least two limiting parts; At least two of the limiting portions are arranged along a first axial direction of the motor, and one end of the guide member away from the motor is clamped between the at least two limiting portions.

11. The motor calibration device according to any one of claims 1 to 10, characterized in that: The base comprises: a first base, a second base and a third base; The second base and the third base are arranged on the first base, and the motor is fixed to the second base; The limiting mechanism is arranged on the third base, and the third base is slidably arranged on the first base along a plane perpendicular to the axial direction of the motor.

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