CN111679189A

CN111679189A - VCM motor performance test structure and test method

Info

Publication number: CN111679189A
Application number: CN202010582686.5A
Authority: CN
Inventors: 付国旺
Original assignee: Wuhan Contemporary Hualu Photoelectric Technology Co ltd
Current assignee: Wuhan Contemporary Hualu Photoelectric Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-09-18

Abstract

The invention discloses a structure and a method for testing performance of a VCM (voice coil motor), which relate to the technical field of VCM motors and comprise a carrier, a dummy lens support and a VCM motor, wherein the carrier comprises an installation seat, a bearing groove and a guide strip, the guide strip is fixedly connected to the outer side above the installation seat, the bearing groove is formed in the installation seat between every two guide strips, the dummy lens support is provided with the guide groove matched with the guide strip, the dummy lens support is positioned and installed on the carrier through the guide groove and the guide strip, and the VCM motor is provided with an installation groove. When the dual-purpose tester is used, the dual lenses adopt a positioning and fixing mode, the relative positions of the dual lenses and the carrier are fixed, relative rotation cannot occur, the consistency of testing is ensured, suction nozzle picking and placing are not needed, the position is determined, only one-time processing is needed in the early stage, the initial cost is high, and the later-stage cost is low.

Description

VCM motor performance test structure and test method

Technical Field

The invention relates to the technical field of VCM motors, in particular to a structure and a method for testing the performance of a VCM motor.

Background

The vcm motor is called as voice coil motor, because the principle is similar to that of a loudspeaker. The direct drive motor is a special type direct drive motor and has the characteristics of simple structure, small volume, quick response, high acceleration, high speed and the like. The vcm motor has a wide application range, and is used in cameras of portable computers, network cameras, video monitors, scanners, mobile phones and other devices, and the main function is focusing, while most of the vcm motors are mobile phones.

At present, the VCM motor has diversified structures, and a test method and a test means have certain defects, as shown in fig. 6-7, a large circle of a contact surface can rotate randomly, the consistency of test data cannot be controlled, a suction nozzle mode is adopted, so that a reflecting surface is easy to be dirty, the reflecting surface is easy to be damaged, the follow-up cost is high, the difference of the test data is obvious, the efficiency is low, and in order to make the VCM test data more stable and the consistency is better, an optimized design is provided, so that a VCM motor performance test structure and a test method are designed to solve the problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a structure and a method for testing the performance of a VCM motor.

In order to achieve the purpose, the invention adopts the following technical scheme:

a performance test structure for a VCM motor comprises a carrier, a dummy lens support and a VCM motor, wherein the carrier comprises a mounting seat, a bearing groove and a guide strip, the guide strip is fixedly connected to the outer side of the upper part of the mounting seat, the bearing groove is formed in the mounting seat between every two guide strips, the dummy lens support is provided with a guide groove matched with the guide strip, the dummy lens support is fixedly mounted on the carrier through the guide groove and the guide strip, the VCM motor is provided with a mounting groove, the outer side of the mounting groove is provided with fixing bayonets in a circular array, the fixing bayonets are matched with the guide strip, and the fixing bayonets of the VCM motor are aligned with the guide groove and the guide strip and mounted at the bottom of the carrier;

a test method for a VCM motor performance test structure, comprising the steps of:

s, before testing: a guide groove at the bottom of the dummy lens support is aligned with a guide strip on the carrier, the downward direction is free from gravity downward, and the guide groove and the guide strip are positioned, installed and fixed without deviation or rotation;

s, during testing: the lower extreme of support is when gravity downwardly movement, the lower extreme of support can fall into the mounting groove of VCM motor automatically, wherein, install the dummy lens in the carrier of dummy lens support bottom, the dummy lens support is when free gravity is downward, the lower tip can fix a position the VCM motor earlier, let the fixed bayonet socket and the guide way and the gib block of VCM motor align, dummy can free gravity fall into the VCM motor, dummy is separated with dummy lens support this moment, do not have any interference, thereby laser instrument light path reflects back from dummy lens plane, the centre can not receive any other external disturbance.

Preferably, the number of the guide grooves and the number of the guide strips are the same, and 3-6 guide grooves and 3-6 guide strips are arranged.

Preferably, the dummytens comprises a reflecting surface, and the mounting seat is positioned and installed with the reflecting surface through the bearing groove.

Preferably, the reflecting surface is of a circular structure, and a bearing block matched with the bearing groove is arranged on the outer side of the reflecting surface.

Compared with the prior art, the invention has the beneficial effects that: when the method is used, the Dummylens adopts a positioning and fixed-point mode, so that the difference of the vcn in the test batch is reduced, and the truest test data is fed back; the Dummy lenses adopt a fixed mode, a complex carrying mode is not adopted, and the testing efficiency is effectively improved; meanwhile, when the device is used, the dummytens reflector surface is protected and cannot be contacted with any part, so that the VCM test performance NG caused by the problem of the reflector surface is avoided;

in addition, during production, the model can be customized according to the volume-produced vcm models, one-to-one correspondence is formed, and the protection effect is achieved; the dummytens can not be greatly worn along with long time, and unnecessary cost loss is brought.

Drawings

Fig. 1 is a schematic structural diagram of a VCM motor performance testing structure and a testing method according to the present invention;

fig. 2 is an exploded view of a VCM motor performance testing structure and method according to the present invention;

FIG. 3 is a schematic structural diagram of a carrier for testing the performance of a VCM motor according to the present invention;

fig. 4 is a schematic structural diagram of a reflective surface for a VCM motor performance testing structure and a testing method according to the present invention;

fig. 5 is a top view of a carrier for testing the performance of the VCM motor according to the present invention;

fig. 6 is an exploded structure diagram before optimization for the VCM motor performance test structure and the VCM motor performance test method according to the present invention;

fig. 7 is an exploded structural view before optimization of a VCM motor performance testing structure and testing method according to the present invention.

In the figure: the device comprises a carrier 1, a mounting seat 101, a bearing groove 102, a guide strip 103, a reflecting surface 2, a 3dummy lens support, a guide groove 301, a 4VCM motor and a fixing bayonet 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-4, a performance test structure for a VCM motor, which includes a carrier 1, a dummy lens support 3 and a VCM motor 4, where the carrier 1 includes a mounting seat 101, a bearing groove 102 and a guide bar 103, the guide bar 103 is fixedly connected to the outer side of the upper side of the mounting seat 101, the bearing groove 102 is disposed on the mounting seat 101 between two guide bars 103, a guide groove 301 adapted to the guide bar 103 is disposed on the dummy lens support 3, the dummy lens support 3 is positioned and mounted on the carrier 1 through the guide groove 301 and the guide bar 103, a mounting groove is disposed on the VCM motor 4, fixing bayonets 5 are disposed in a circular array on the outer side of the mounting groove, the fixing bayonets 5 are adapted to the guide bar 103, and the fixing bayonets 5 of the VCM motor 4 are aligned and mounted at the bottom of the carrier 1 with the guide groove 301 and the guide bar 103;

the number of the guide grooves 301 and the number of the guide strips 103 are the same, and 3-6 guide grooves 301 and 3-6 guide strips 103 are arranged; the dummytens comprises a reflecting surface 2, and a mounting seat 101 is positioned and mounted with the reflecting surface 2 through a bearing groove 102; the reflecting surface 2 is of a circular structure, and the outer side of the reflecting surface 2 is provided with a bearing block matched with the bearing groove 102; the top end of the dummy is arranged in the dummy lens bracket 3 in a sliding and limiting way;

during the test, the following are specified:

s1, before testing: the guide groove 301 at the bottom of the dummy frame 3 is aligned with the guide bar 103 on the carrier 1, the downward direction is free from gravity downward, and the guide groove 301 and the guide bar 103 are positioned, installed and fixed on the dummy frame 3 without deviation or rotation;

s2, during testing: support 1's lower extreme when gravity moves down, support 1's lower extreme can fall into the mounting groove of VCM motor 4 automatically, wherein, install the dummy lens in the carrier 1 of dummy lens support 3 bottom, dummy lens support 3 is when free gravity is downward, the lower tip can fix a position VCM motor 4 earlier, let VCM motor 4's fixed bayonet 5 align with guide way 301 and guide bar 103, dummy lens can free gravity fall into VCM motor 4, dummy lens and dummy lens support 3 separation this moment, do not have any interference, thereby laser instrument optical path reflects from dummy lens plane, the centre can not receive any other external disturbance.

It should be noted that before optimization, dummy is shown in fig. 6-7, the contact surface is large in circle and can rotate freely, the consistency of test data cannot be controlled, the adoption of a suction nozzle mode easily causes the dirty reflection surface, the damage to the reflection surface is easy, and the subsequent cost is high.

The improved state is as shown in figures 1-5, the relative position of the dummy lens and the carrier 1 is fixed, relative rotation cannot occur, the consistency of testing is guaranteed, the suction nozzle is not needed to be taken and placed, the position is determined, only one-time processing in the early stage is needed, the initial cost is high, and the later-stage cost is low.

When the method is used, the Dummylens adopts a positioning and fixed-point mode, so that the difference of the vcn in the test batch is reduced, and the truest test data is fed back; the Dummy lenses adopt a fixed mode, a complex carrying mode is not adopted, and the testing efficiency is effectively improved; meanwhile, when the device is used, the dummytens reflector surface is protected and cannot be contacted with any part, so that the VCM test performance NG caused by the problem of the reflector surface is avoided;

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a be used for VCM motor capability test structure, includes carrier (1), dummy lens support (3) and VCM motor (4), its characterized in that, carrier (1) includes mount pad (101), holds and leans on groove (102) and gib block (103), gib block (103) fixed connection is in the top outside of mount pad (101), hold and lean on groove (102) and set up on mount pad (101) between two liang of gib block (103), be provided with on dummy lens support (3) with gib block (103) looks adaptation guide way (301), dummy lens support (3) are installed on carrier (1) through guide way (301) and gib block (103) location, be provided with the mounting groove on VCM motor (4), the outside of mounting groove is circular array and is provided with fixed bayonet socket (5), fixed bayonet socket (5) and gib block (103) looks adaptation, the fixing bayonet (5) of the VCM motor (4) is aligned with the guide groove (301) and the guide bar (103) and is arranged at the bottom of the carrier (1).

2. A test method for a VCM motor performance test structure is characterized by comprising the following steps:

s1, before testing: a guide groove (301) at the bottom of the dummy lens support (3) is aligned with a guide bar (103) on the carrier (1), the downward direction is free from gravity downward, and the guide groove (301) and the guide bar (103) are positioned, installed and fixed on the dummy lens support (3) without deflection or rotation;

s2, during testing: the lower extreme of support (1) is when gravity moves down, the lower extreme of support (1) can fall into the mounting groove of VCM motor (4) automatically, wherein, install the dummy lens in carrier (1) of dummy lens support (3) bottom, dummy lens support (3) are when free gravity is downward, lower tip can fix VCM motor (4) earlier, let fixed bayonet socket (5) and guide way (301) and guide bar (103) of VCM motor (4) aim at, dummy lens can free gravity fall into VCM motor (4), dummy lens and dummy lens support (3) separation this moment, do not have any interference, thereby laser instrument light path reflects from dummy lens plane, the centre can not receive any other external disturbance.

3. A test structure and a test method for VCM motor performance according to claim 1, characterized in that, the number of the guide grooves (301) and the guide bars (103) is the same, and each of the guide grooves (301) and the guide bars (103) is provided with 3-6.

4. A test structure and method for VCM motor performance according to claim 1, characterized in that, said dummytens includes a reflective surface (2), and said mounting seat (101) is positioned and installed with the reflective surface (2) through the bearing groove (102).

5. A test structure and a test method for the performance of a VCM motor according to claim 4, characterized in that the light reflecting surface (2) is a circular structure, and the outer side of the light reflecting surface (2) is provided with a bearing block matched with the bearing groove (102).