TWI415371B - Fixing device for fixing componects of voice coil motor - Google Patents

Abstract

The present invention relates to a fixing device used for fixing some components of a voice coil motor and including a first clamp, a second clamp and a connector. The first clamp has a first surface and a first groove defined in the first surface. The second clamp has a second surface and a second groove defined in the second surface. The connector connects to the first clamp and the second clamp.

Description

Fixing device for fixed voice coil motor components

The present invention relates to a fixture, and more particularly to a fixture for securing a voice coil motor component.

For example, "Design method of new high-speed precision positioning system based on voice coil motor" (China Mechanical Engineering, 16 (16): 1414-1419, 2005), Voice Coil Motor (VCM) is based on the principle of Ampere A new type of direct drive motor is manufactured, which can avoid the gaps of the transmission link in the rotary motor drive, and has the advantages of high speed, small volume and convenient control. Therefore, the voice coil motor has been widely used in mobile phone lens modules.

With the miniaturization of the voice coil motor, the difficulty of assembling the voice coil motor is correspondingly increased. During the assembly of the voice coil motor, the two shrapnel are fixed to a frame by dispensing. When the shrapnel and the frame are small, if the shrapnel is pressed by the finger and dispensed, the shrapnel is easily warped and fixed.

In view of the above, it is necessary to provide a fixing device for fixing a voice coil motor component.

A fixing device for a fixed voice coil motor component for assembling a voice coil motor component Fixing the voice coil motor component, the voice coil motor component includes a frame body, a lens carrier and two elastic pieces, the lens carrier is located in the frame body and includes a cylinder body, and the two elastic pieces are respectively located in the frame The fixing device includes a first clamp, a second clamp and a connecting member at both ends of the body and the cylinder. The first clamp includes a first surface, and a first recess is formed at a center of the first surface. The second clamp includes a second surface, and a second recess is formed at a central position of the second surface. The connecting member may connect the first clamp and the second clamp through the elastic piece and the lens carrier, and the first surface of the first clamp and the second surface of the second clamp respectively abut the frame The springs on both ends are fixed to fix the components of the voice coil motor component.

The fixing device connects the first jig and the second jig by the connecting member, thereby fixing the voice coil motor component to facilitate assembly of the voice coil motor component.

1,3,4‧‧‧ fixtures

12,32,42‧‧‧First fixture

122,322,422‧‧‧ first surface

124,324,424‧‧‧first groove

126,326,426‧‧‧ first bottom

128,328‧‧‧first screw hole

14,34,44‧‧‧second fixture

142,442‧‧‧second surface

144,444‧‧‧second groove

146,446‧‧‧second bottom surface

148,348‧‧‧Second screw hole

16,36,46‧‧‧connectors

462‧‧‧First connection

464‧‧‧Second connection

2‧‧‧ voice coil motor components

22‧‧‧ frame

222‧‧‧Support column

224‧‧‧ beams

226‧‧‧First positioning column

24‧‧‧Lens carrier

242‧‧‧Cylinder

244‧‧‧Second positioning column

26‧‧‧Shrap

262‧‧‧ first through hole

264‧‧‧Second through hole

1 is an exploded view of a fixing device according to a first embodiment of the present invention; FIG. 2 is another perspective view of the fixing device of FIG. 1; FIG. 3 is a perspective view of a voice coil motor component to be assembled; FIG. 5 is a schematic view showing a first working state of the fixing device of FIG. 1; FIG. 6 is a second working state of the fixing device of FIG. 1; FIG. 7 is a second embodiment of the present invention; FIG. 8 is a perspective view of a fixing device according to a third embodiment of the present invention; and FIG. 9 is another perspective view of the fixing device of FIG.

The following preferred embodiments will be described in detail below with reference to the accompanying drawings.

1 and 2 show a fixing device 1 according to a first embodiment of the present invention. The fixing device 1 includes a first clamp 12 , a second clamp 14 and a connecting member 16 . The first clamp 12 and the second clamp 14 can be connected by the connecting member 16.

The first clamp 12 includes a first surface 122, and the first surface 122 is centrally formed with a circular first recess 124. The first recess 124 defines a first bottom surface 126 . The first bottom surface 126 defines a first screw hole 128 extending through the first clamp 12 .

The second clamp 14 includes a second surface 142 that defines a circular second recess 144 at a central location. The second recess 144 has a second bottom surface 146 . The second bottom surface 146 defines a second screw hole 148 extending through the second clamp 14 .

The connecting member 16 is a screw threaded at both ends. The two ends of the connecting member 16 are respectively screwed with the first screw hole 128 of the first clamp 12 and the second screw hole 148 of the second clamp 14 to connect the first clamp 12 and the second clamp 14 .

Referring to FIG. 3 and FIG. 4 , a voice coil motor component 2 to be assembled includes a frame 22 , a lens carrier 24 and two elastic pieces 26 . The frame 22 includes four support columns 222 arranged in parallel and a plurality of beams 224 connected to the support columns 222. Each of the support columns 222 is respectively provided with a first positioning post 226. The lens carrier 24 is located in the frame 22 and includes a cylinder 242. Four second positioning posts 244. The two elastic pieces 26 are respectively located at two ends of the frame body 22 and the cylindrical body 242, and a circular first through hole 262 is defined at a central position thereof, corresponding to the first positioning post 226 and the second positioning post. A second through hole 264 is provided at a position of 244. The first positioning post 226 and the second positioning post 244 pass through the second through hole 264 to position the two elastic pieces 26 .

Referring to FIGS. 4-6, when the voice coil motor component 2 is assembled using the fixture 1, the first clamp 12 is first placed on the work platform with its first surface 122 facing upward. Then, a piece of the elastic piece 26, a frame 22, a lens holder 24 and another elastic piece 26 are sequentially placed on the first clamp 12, so that the lens carrier 24 is located in the frame. 22, the two elastic pieces 26 are respectively located at the two ends of the frame 22, and each of the two through holes 264 of the two elastic pieces 26 passes through the first positioning post 226 and the second positioning post 244 at corresponding positions. . One end of the connecting member 16 is passed through the elastic piece 26 and the lens carrier 24 to be screwed with the first screw hole 128 of the first clamp 12. The other end of the connecting member 16 is screwed with the second screw hole 148 of the second clamp 14 so that the first surface 122 of the first clamp 12 and the second surface 142 of the second clamp 14 are respectively adhered to The elastic pieces 26 on both ends of the frame 22 are fixed to fix the components of the voice coil motor component 2. Dispensing at the junction of the beam 224 of the frame 22 and the elastic piece 26 causes the elastic piece 26 to be fixed to the frame 22. The first jig 12, the second jig 14 and the connecting member 16 are removed, and the voice coil motor element 2 is assembled.

Referring to FIG. 7 , a fixing device 3 according to a second embodiment of the present invention is different from the fixing device 1 provided by the first embodiment in that one end of the connecting member 36 is fixed to the first jig 32 . The center of a bottom surface 326 can be fixed in a one-piece, interference fit or other manner. The other end of the connecting member 36 can be The second clamp 34 is screwed.

Referring to FIG. 8 and FIG. 9 , a fixing device 4 according to a third embodiment of the present invention is different from the fixing device 1 provided by the first embodiment in that the connecting member 46 includes a first connecting portion 462 and A second connecting portion 464 corresponding to the first connecting portion 462. The first connecting portion 462 is a threaded screw, and one end thereof is fixed at the center of the first bottom surface 426 of the first clamp 42. The second connecting portion 464 is a ring column provided with a screw hole, and one end thereof is fixed at the center of the second bottom surface 446 of the second clamp 44. The first connecting portion 462 can be screwed with the second connecting portion 464 to connect the first clamp 42 and the second clamp 44.

The fixing device connects the first jig and the second jig by the connecting member, thereby fixing the voice coil motor component, so that the two elastic pieces can be pressed flat on the frame body for assembly.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

1‧‧‧Fixed devices

12‧‧‧First fixture

122‧‧‧ first surface

124‧‧‧First groove

126‧‧‧ first bottom surface

128‧‧‧First screw hole

14‧‧‧Second fixture

16‧‧‧Connecting parts

Claims (7)

A fixing device for fixing a voice coil motor component for fixing the voice coil motor component when assembling a voice coil motor component, the voice coil motor component comprising a frame body, a lens carrier and two elastic pieces, the lens bearing seat is located The inside of the frame includes a cylinder, and the two elastic pieces are respectively located at two ends of the frame body and the cylinder body, wherein the fixing device comprises a first clamp, a second clamp and a connecting member; The first jig includes a first surface, a first groove is formed at a center of the first surface; the second jig includes a second surface, and a second groove is formed at a central position of the second surface; The connecting member may connect the first clamp and the second clamp through the elastic piece and the lens carrier, and the first surface of the first clamp and the second surface of the second clamp respectively abut the frame The springs on both ends are fixed to fix the components of the voice coil motor component. The fixing device of the first aspect of the invention, wherein the first recess of the first clamp has a first bottom surface, the first bottom surface is provided with a first screw hole; The second groove has a second bottom surface, the second bottom surface is provided with a second screw hole, the second screw hole extends through the second clamp; the connecting member is provided with a thread at both ends, and the connecting member has two ends Separating with the first screw hole and the second screw hole respectively. The fixing device of claim 1, wherein the first recess of the first clamp has a first bottom surface, one end of the connecting member is fixed on the first bottom surface; and the second clamp The second recess has a second bottom surface, and the second bottom surface is provided with a second screw hole extending through the second clamp; the connecting member is provided with a thread, and the other end of the connecting member is connectable to the second Screw holes are screwed together. The fixing device of claim 3, wherein the connecting member is integrally formed with the first jig. The fixing device of claim 1, wherein the first recess of the first clamp has a first bottom surface, and the second recess of the second clamp has a second bottom surface; the connection The device includes a first connecting portion and a second connecting portion corresponding to the first connecting portion, the first connecting portion is fixed to the first bottom surface of the first groove, and the second connecting portion is fixed to the a second bottom surface of the second recess, the first connecting portion being connectable to the second connecting portion. The fixing device of claim 5, wherein the first connecting portion is a threaded screw, and the second connecting portion is a ring post having a screw hole, the first connection The portion may be screwed with the second connecting portion. The fixing device according to claim 6, wherein the first connecting portion is integrally formed with the first jig, and the second connecting portion is integrally formed with the second jig.