TWI427900B - Apparatus for assembling voice coil motor and method of using same - Google Patents

Description

Voice coil motor assembly jig and use method thereof

The present invention relates to a voice coil motor assembly jig, and more particularly to a jig for assembling a magnetic component of a voice coil motor and a method of using the jig.

The voice coil motor is often used as a driving structure for the focus adjustment of the camera module, and mainly includes a voice coil motor frame, a magnet, a coil, and the like. Magnets are often placed around the frame to provide a magnetic field in the direction of the magnetic field from the center of the frame that interacts with the electromagnetic field generated by the energized solenoid to drive the lens or barrel.

However, the current magnetic component assembly process is mostly done by hand, which takes too much time and the assembly yield is not high, which affects the output and quality of the voice coil motor.

In view of the above, it is necessary to provide a jig capable of automatically assembling a magnetic component and a method of using the jig.

A voice coil motor assembly jig for mounting a magnetic component for a voice coil motor to be assembled, the voice coil motor having a fixing frame defining a plurality of magnetic portions for accommodating the magnetic component, the assembly The fixture includes: a base having a surface; a magnetic conductive member vertically disposed on the surface of the base for providing an attraction to the magnetic component Force, the magnetic conductive member has a central axis and the magnetic conductive member is rotatable along the central axis; a support member and a fixing member, the support member and the fixing member are sleeved on the magnetic conductive member and disposed opposite to each other for the voice coil a motor mounting bracket is fixed between the support member and the fixing member; a conveying portion is provided with a groove for accommodating the plurality of magnetic elements, the groove has a first end and a second end, the first end is adjacent to the The magnetic conductive member is aligned with a magnetic portion of the fixing frame; the ejector member is adjacent to the second end of the groove; and the driving portion is configured to drive the ejector member to penetrate the groove.

A method of installing a magnetic component for a voice coil motor, comprising the steps of: providing a voice coil motor mount to be assembled, the fixture defining a plurality of magnetic portions for accommodating the magnetic component; Arranging a plurality of magnetic elements in the groove; the support member, the voice coil motor holder and the fixing member are sequentially sleeved on the magnetic conductive member; and a magnetic portion of the fixing frame is adjacent to one end of the conveying portion; The driving portion pushes the ejector member to apply a thrust force to the magnetic element in the groove, so that the magnetic element closest to the magnetic portion is attached to the magnetic portion under the joint action of the thrust and the attraction force of the magnetic conductive member; The magnetic conductive member rotates at an angle to drive the voice coil motor holder sleeved on the magnetic conductive member to rotate, so that the other magnetic portion is aligned with one end of the groove; and thus repeats until the magnetic component is installed.

A method of installing a magnetic component for a voice coil motor, comprising the steps of: providing a first fixture to be assembled and a second fixture, each fixture defining a plurality of magnetic portions for accommodating the magnetic component Aligning a plurality of magnetic elements in the groove of the conveying portion; the supporting member, the first fixing frame, the spacer, the second fixing frame and the fixing member are sequentially sleeved on the magnetic conductive member; a magnetic portion of a fixing frame is adjacent to one end of the conveying portion; and the driving portion pushes the magnetic element of the ejection member into the groove Applying a thrust force, such that the magnetic element closest to the magnetic portion is attached to the magnetic portion under the action of the thrust and the attraction force of the magnetic conductive member; rotating the magnetic conductive member at a certain angle to make the first fixed frame The other magnetic portion is aligned with one end of the groove; the method is repeated until the magnetic component of the first holder is installed; and a magnetic portion of the second holder is adjacent to one end of the conveying portion; Pushing the ejector member to apply a thrust force to the magnetic element in the groove, so that the magnetic element closest to the second fixed frame magnetic portion is attached to the magnetic portion under the joint action of the thrust and the attraction force of the magnetic conductive member Rotating the magnetic conductive member at an angle such that the other magnetic portion of the second fixing frame is aligned with one end of the groove; thus repeating until the magnetic component of the second fixing frame is installed.

Compared with the prior art, the voice coil motor assembly jig provided by the present invention is provided with a driving portion that drives the ejection member to penetrate the groove of the conveying portion to mount the magnetic component located at the conveying portion to the voice coil motor. In the magnetic part, when a magnetic component is installed, the magnetic conductive member drives the voice coil motor to rotate, so that the other magnetic portion is aligned with one end of the conveying portion, thereby realizing automatic assembly and improving the assembly efficiency of the voice coil motor.

The invention can also sleeve the fixing frame of the plurality of voice coil motors on the magnetic conductive member to reduce the time for removing the loading voice coil motor and further improve the assembly efficiency.

10, 20‧‧‧ voice coil motor assembly fixture

102‧‧‧Base

104‧‧‧Magnetic parts

1061‧‧‧Supports

1062‧‧‧Fixed parts

108‧‧‧Transportation Department

111‧‧‧ ejection

110‧‧‧ Drive Department

101‧‧‧ fixed frame

1011‧‧‧Magnetic Department

1021‧‧‧Base surface

1063‧‧‧Base

1064‧‧‧Sleeve

1013‧‧‧Magnetic components

1081‧‧‧ trench

1082‧‧‧Terminal end

1083‧‧‧The other end of the trench

201‧‧‧ spacers

204, 202‧‧‧ voice coil motor mount

2011‧‧‧Upper side

2012‧‧‧ underside

1 is a schematic view of a voice coil motor assembly jig provided by a first embodiment of the present invention.

2 is an exploded perspective view of FIG. 1.

3 is a schematic view of a voice coil motor assembly jig provided by a second embodiment of the present invention.

Figure 4 is an exploded perspective view of Figure 3.

The invention will now be described in further detail with reference to the accompanying drawings.

Referring to FIG. 1 and FIG. 2, the voice coil motor assembly jig 10 according to the first embodiment of the present invention includes a base 102, a magnetic conductive member 104, a support member 1061, a fixing member 1062, a conveying portion 108, an ejection member 111, and a driving device. Part 110.

The voice coil motor mount 101 defines a plurality of magnetized portions 1011 for magnetically capacitive elements.

The base 102 has a rectangular parallelepiped structure and is vertically disposed on a workbench (not shown).

The base 102 has a surface 1021, and the magnetically permeable member 104 is vertically disposed on the surface 1021. The magnetic conductive member 104 is made of a magnetic conductive stainless steel material and has a rectangular parallelepiped structure. It can be integrally formed with the support member 1061, or can be separately manufactured and then fixed to the surface 1021 of the base 102.

The base 102 can be connected to a driving mechanism (not shown) for driving the base 102 and the magnetic conductive member 104 to rotate about the central axis of the magnetic conductive member 104 or to move along the extending direction of the magnetic conductive member 104. The support 1061 also rotates or moves synchronously with the base 102.

Preferably, the drive mechanism (not shown) only drives the magnetically conductive member 104 to rotate about its own central axis. Since the voice coil motor mount 101 and the magnetic conductive member 104 that are sleeved on the magnetic conductive member 104 are closely connected, the voice coil motor mount 101 will rotate synchronously with the magnetic conductive member 104.

It can be understood that the structure of the magnetic conductive member 104 is related to the structure of the voice coil motor, and the structure of the magnetic conductive member 104 can be designed according to actual needs.

The support member 1061 is composed of two parts, a base 1063, and the base 1063 has a through hole. (not shown), the second series is fixed to the sleeve 1064 of the base 1063, and the position of the sleeve 1064 is the same as the position of the through hole (not shown). The sleeve 1064 is in communication with the through hole of the base 1063.

The support member 1061 is sleeved on the magnetic conductive member 104 such that the base 1063 and the base 102 are in contact with each other.

The holder 101 is fixed to the top end of the sleeve 1064 through the magnetically permeable member 104. Preferably, the top end of the sleeve 1064 is provided with a plurality of positioning structures (not shown) that cooperate with the holder 101 to better secure the holder 101. The fixing member 1062 and the supporting member 1061 are basically the same in structure, and are also sleeved on the magnetic conductive member 104, opposite to the position of the supporting member 1061, and the top end of the sleeve and the fixing frame 101 cooperate with the fixing fixing frame, which mainly provides a facing base 102. The pressure in the direction to stabilize the holder 101.

The conveying portion 108 is provided with a groove 1081 for accommodating a plurality of magnetic elements 1013. The groove 1081 has a first end 1082 and a second end 1083. The first end 1082 is adjacent to the magnetic conductive member 104 and aligned with the fixing frame. One of the magnetic portions 1011 of 101. Preferably, the distance between the first end 1082 and the magnetic pole portion 1011 is less than the thickness of one magnetic element 1013.

The plurality of magnetic elements 1013 are arranged in the trench 1081.

The ejector member 111 is connected to the driving portion 110. The ejector member 111 is adjacent to the second end 1083 of the trench 1081 and can extend into the trench 1083. The width of the ejector member 111 is less than or equal to the width of the trench 1081 and the length is greater than the length of the trench 1081.

The driving portion 110 is configured to drive the ejector member 111 to penetrate the trench 1083. The driving portion 110 may be a stepping motor. When the moving distance of the ejection member 111 is equal to the thickness of one magnetic member 1013, the first magnetic member located closest to the magnetic conductive member 104 in the groove 1083 is pushed out of the groove 1083 to be attached to the magnetic portion 1011. In this process, due to magnetic conduction The piece 104 itself will also create an attractive force with the magnetic element 1013, and thus can function to match the magnetic element 1013.

When assembling the voice coil motor, the support member 1061, the fixing frame 101, and the fixing member 1062 are sequentially sleeved from the bottom to the top of the magnetic conductive member 104. A plurality of magnetic elements 1013 are arranged in the trenches 1081 of the transport portion 108, and one of the largest areas of each of the magnetic elements 1013 faces the plane where the magnetic portion 1011 is located; adjusting the position of the magnetic conductive member 104 causes one of the fixing frames 101 to be placed The magnetic portion 1011 is adjacent to one end 1082 of the transport portion 108. Preferably, the distance between the one end 1082 of the conveying portion and the magnetic portion 1011 is smaller than the thickness of the magnetic member 1013.

The driving portion 110 is activated to drive the ejector member 111 to move to the magnetic member 1013 in the groove, and apply a pushing force to the magnetic member 1013 so that the magnetic member 1013 closest to the magnetic portion 1011 is in the thrust and the magnetic conductive member 104. The attraction portion is attached to the magnetic portion 1011.

Rotating the magnetic conductive member 104 at an angle to align the other magnetic portion 1011 with one end 1082 of the groove, and then starting the driving portion 110 again, applying the thrust to the magnetic element 1013 in the groove by using the ejector member 111, The next magnetic element 1013 is pushed to the magnetic portion 1011.

Generally, if the voice coil motor mount 101 is a square structure, the support member 102 can be rotated by 90 degrees.

This is repeated until all magnetic components have been installed.

Referring to FIG. 3 and FIG. 4, the voice coil motor assembly jig 20 according to the second embodiment of the present invention is basically the same as the voice coil motor assembly jig 10 provided in the first embodiment, except that the voice coil motor assembly process is the same. The tool 20 also includes a spacer 201. Voice coil motor assembly The jig 20 can assemble a plurality of voice coil motors on a magnetically permeable member 104.

The spacer 201 is a hollow frame of a rectangular parallelepiped structure made of a non-magnetic material.

In use, the support member 1061, the voice coil motor mount 204, the spacer 201, the voice coil motor mount 202, and the fixing member 1062 are sequentially sleeved on the magnetic conductive member 104 from bottom to top. The upper side 2011 of the spacer 201 and the voice coil motor mount 202 are fitted together, and the lower side 2012 and the voice coil motor mount 204 are fitted together, so that the voice coil motor mount 202 and the voice coil motor mount 204 can be separated from each other to avoid installation. The magnetic elements of the two voice coil motors interact with each other during the magnetic component.

After assembling all the magnetic components of the voice coil motor mount 204, the magnetic portion of the voice coil motor mount 202 is aligned with one end 1082 of the transport portion 108, and then the drive portion 110 is activated to mount the magnetic member 1013.

It will be appreciated that a plurality of voice coil motors can be assembled on a magnetically permeable member as long as the magnetically permeable member 104 is sufficiently long.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧ voice coil motor assembly fixture

101‧‧‧ fixed frame

1011‧‧‧Magnetic Department

102‧‧‧Base

1021‧‧‧Base surface

104‧‧‧Magnetic parts

1061‧‧‧Support

1062‧‧‧Fixed parts

1063‧‧‧Base

1064‧‧‧Sleeve

108‧‧‧Transportation Department

110‧‧‧ Drive Department

1081‧‧‧ trench

1082‧‧‧Terminal end

1083‧‧‧The other end of the trench

1013‧‧‧Magnetic components

Claims (8)

A voice coil motor assembly jig for mounting a magnetic component to a voice coil motor to be assembled, the voice coil motor having a fixing frame defining a plurality of magnetic portions for accommodating the magnetic component, the improvement The assembly jig includes: a base having a surface; a magnetic conductive member vertically disposed on the surface of the base for providing an attractive force to the magnetic member, the magnetic conductive member having a central axis and the magnetic conductive member The magnetic conductive member is rotatable along the central axis; the support member and the fixing member are sleeved on the magnetic conductive member and disposed opposite to fix the voice coil motor fixing bracket to the support member and the fixing member a conveying portion provided with a groove for accommodating a plurality of magnetic members, the groove having a first end and a second end, the first end being adjacent to the magnetic conductive member and aligned with one of the fixing frames a magnetic portion; an ejector member, the ejector member is adjacent to the second end of the groove; and a driving portion for driving the ejector member to penetrate the groove. The voice coil motor assembly jig according to claim 1, wherein the voice coil motor assembly jig further comprises a spacer, the spacer is sleeved on the magnetic conductive member and located at the support member and the fixing member Between, it is used to isolate the complex voice coil motor mount, and the spacer is made of a non-magnetic material. The voice coil motor assembly jig according to claim 1, wherein the distance between the one end of the conveying portion and the magnetic portion is smaller than the thickness of the magnetic member. The voice coil motor assembly jig according to claim 1, wherein the driving portion is a stepping motor. The voice coil motor assembly jig according to claim 1, wherein the magnetic conductive member has a square structure and is made of a magnetic conductive stainless steel material. The voice coil motor assembly jig according to claim 1, wherein the magnetic conductive member is a cylindrical structure and is made of a magnetic conductive stainless steel material. A method of using a voice coil motor assembly jig according to claim 1, comprising the steps of: providing a voice coil motor mount to be assembled, the holder defining a plurality of magnetic components for accommodating the magnetic component a magnetic portion; a plurality of magnetic elements are arranged in the groove of the conveying portion; the support member, the voice coil motor holder and the fixing member are sequentially sleeved on the magnetic conductive member; and a magnetic portion of the fixing frame is arranged Adjacent to one end of the conveying portion; causing the driving portion to push the ejector member to apply a thrust force to the magnetic member in the groove, so that the magnetic element closest to the magnetic portion is combined with the attraction force of the thrust and the magnetic conductive member Attached to the magnetic portion; rotating the magnetic member at a certain angle to drive the voice coil motor holder sleeved on the magnetic member to rotate, so that the other magnetic portion is aligned with one end of the groove; The magnetic components are installed. A method for using a voice coil motor assembly jig according to claim 7, comprising the steps of: providing a first fixing frame to be assembled and a second fixing frame, each fixing frame defining a plurality of uses Storing a magnetic portion of the magnetic component; Arranging a plurality of magnetic elements in the groove of the conveying portion; the supporting member, the first fixing frame, the spacer, the second fixing frame and the fixing member are sequentially sleeved on the magnetic conductive member; a magnetic portion of the fixing frame is adjacent to one end of the conveying portion; causing the driving portion to push the ejection member to apply a thrust force to the magnetic element in the groove, so that the magnetic element closest to the magnetic portion is in the thrust and the magnetic conductive member Attached to the magnetic portion under the action of attraction; rotating the magnetic member at an angle such that another magnetic portion of the first holder is aligned with one end of the groove; thus repeating until the first The magnetic component of the fixing frame is installed; one magnetic portion of the second fixing frame is adjacent to one end of the conveying portion; and the driving portion pushes the ejection member to apply a thrust force to the magnetic component in the groove, so that the closest The magnetic component of the second fixed mounting magnetic portion is attached to the magnetic placing portion under the action of the thrust and the attraction force of the magnetic conductive member; the magnetic conductive member is rotated by a certain angle to make the other of the second fixing frame The magnetic portion is aligned with one end of the groove; Until the holder of the second magnetic element is installed.