CN102122865B - Coil rack fixing device - Google Patents
Coil rack fixing device Download PDFInfo
- Publication number
- CN102122865B CN102122865B CN201010300179.4A CN201010300179A CN102122865B CN 102122865 B CN102122865 B CN 102122865B CN 201010300179 A CN201010300179 A CN 201010300179A CN 102122865 B CN102122865 B CN 102122865B
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- CN
- China
- Prior art keywords
- fixing device
- holder
- rotating shaft
- coil rack
- breasting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Manufacture Of Motors, Generators (AREA)
- Moving Of Heads (AREA)
Abstract
The invention discloses a coil rack fixing device, which is used for fixing a coil rack of a voice coil motor on a rotating shaft of an automatic coiling machine. The coil rack fixing device comprises a first clamping member and a second clamping member, which are fixed on the rotating shaft of the automatic coiling machine. The first clamping member comprises a bearing and supporting shaft fixed on the rotating shaft of the automatic coiling machine; one end of the bearing and supporting shaft away from the rotating shaft of the automatic coiling machine comprises a magnetic conducting part. The second clamping member is provided with a fixing hole for sleeving the bearing and supporting shaft and a magnetic member which is arranged in the fixing hole and can move along the depth direction of the fixing hole. Accordingly, by adjustment of the position of the magnetic member, the distance between the magnetic conducting part and the magnetic member is changed and magnetic force applied to the first clamping member and the second clamping member is adjusted, so that the same coil rack fixing device can fix different types of coil racks with proper force, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of coil rack fixing device.
Background technology
Voice coil motor generally comprises a bobbin and is set around the coil of bobbin.Winder for coiling voice coil motor comprises an automatic coil winding machine and a coil rack fixing device that is fixed on automatic coil winding machine.Automatic coil winding machine generally comprises a rotating shaft.Coil rack fixing device comprises the first holder and second holder that are fixed on the rotating shaft of automatic coil winding machine.Conventionally, in two holders, have one at least and comprise a fixing magnetic part, another holder comprises magnetic part or the magnetic conductive component that another is fixing, and the first holder and the second holder clamp bobbin by magnetic force combination, thereby bobbin is fixed on to rotating shaft.Bobbin is realized the coiling of coil with the rotation of rotating shaft.Yet because magnetic part maintains static, the magnetic force between the first holder and the second holder is also constant, therefore, when the bobbin of processing different model, because the pressure that bobbin can bear is different, need to change different coil rack fixing devices, in order to avoid bobbin is damaged by pressure.So, in order to produce the voice coil motor of Multiple Type, just need to adopt eurypalynous coil rack fixing device, cause the rising of voice coil motor cost.
Summary of the invention
In view of this, be necessary to provide a kind of coil rack fixing device reducing production costs.
, for the bobbin of voice coil motor being fixed on to the rotating shaft of automatic coil winding machine, this coil rack fixing device comprises the first holder and second holder that are fixed on the rotating shaft of this automatic coil winding machine.This first holder comprises a breasting axle that is fixed on the rotating shaft of this automatic coil winding machine, and this breasting axle comprises a magnetic conduction portion away from one end of the rotating shaft of this automatic coil winding machine.This second holder offers a fixing hole for sheathed this breasting axle and one and is arranged in this fixing hole and the magnetic part that can move along the depth direction of this fixing hole.
Compared with prior art, between the first holder of this coil rack fixing device and the second holder, can change by adjusting the position of this magnetic part the distance of this magnetic conduction portion and this magnetic part, thereby adjust, put on the magnetic force on this first holder and this second holder, thereby make can be suitable for a coil rack fixing device processing of the bobbin of different model, reduced production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the coil rack fixing device of preferred embodiments of the present invention.
Fig. 2 is the cutaway view of the coil rack fixing device IV-IV along the line of Fig. 1.
Fig. 3 is the decomposing schematic representation of the coil rack fixing device of Fig. 1.
Fig. 4 is the decomposing schematic representation of another angle of coil rack fixing device of Fig. 1.
Main element symbol description
Coil rack fixing device 10
Bobbin 20
The first holder 100
The first noumenon 102
Breasting axle 104
Screw 106
Screw 110
The second screw 116
The 3rd screw 118
The second screw 120
The first stator 122
The second holder 200
The second body 202
Fixing hole 204
Sheathed hole 210
End face 215
The second stator 216
Embodiment
Please refer to Fig. 1 and Fig. 2, the coil rack fixing device 10 of preferred embodiments of the present invention is for being fixed on the bobbin of voice coil motor 20 rotating shaft 30 of automatic coil winding machine.Coil rack fixing device 10 comprises that the first holder 100 and the second holder 200, the first holders 100 are fixed on rotating shaft 30.
Please again in conjunction with Fig. 3 and Fig. 4, the first holder 100 axial symmetry and coaxially arranging with rotating shaft 30, it comprises columniform, an extended the first noumenon 102 of the axis of rotation 30 and a columniform breasting axle 104.The first noumenon 102 comprises that a upper surface 103 away from rotating shaft 30, lower surface 111 near rotating shaft 30 and one connect the side surface 109 of upper surface 103 and lower surface 111.Breasting axle 104 comprises axis body 108 that a high magnetoresistance material (as plastics) is made and the screw 110 of a magnetic conduction.Axis body 108 comprise mutually back to a bottom surface 107 away from end face 105 and a relative end face 105 of rotating shaft 30.Bottom surface 107 mutually combines with the upper surface 103 of the first noumenon 102.On end face 105, vertically offer the screw 106 of a corresponding screw 110.Screw 110 screws togather to screw 106, thereby breasting axle 104 is arranged to a magnetic conduction portion 119 away from one end of rotating shaft 30.
Be appreciated that it is in order to reduce costs that axis body 108 is used high magnetoresistance material to make, it also can use permeability magnetic material (as steel) to make.So, screw 110 and screw 106 can be set, because the axis body 108 that adopts permeability magnetic material to make has been magnetic conduction portion away from rotating shaft 30 one end.Certainly, the mode that breasting axle 104 is arranged to magnetic conduction portion 119 away from one end of rotating shaft 30 is also not limited to present embodiment, can a magnetic conduction portion be arranged to breasting axle 104 away from one end of rotating shaft 30 by the mode such as bonding.
The second holder 200 axial symmetry and coaxially arranging with rotating shaft 30, it comprises columniform second body 202 of being made by high magnetoresistance material (as plastics), a magnetic part 206.In the present embodiment, magnetic part 206 is the threaded bolts of the tool of being made by magnet.The second body 202 offers a fixing hole 204, and fixing hole 204 is cylindrical and run through the second body 202 along the symmetry axis of the second body 202.Fixing hole 204 comprises that one near the sheathed hole 210 of breasting axle 104 and away from the positioning hole 212 of breasting axle 104.Sheathed hole 210 is corresponding with the shape of breasting axle 104, and sheathed breasting axle 104.The inwall of positioning hole 212 offers the screw thread of corresponding magnetic part 206 (bolt).Please refer to Fig. 2, so, after assembling, can be by magnetic part 206 being screwed into or spiral shell goes out the positioning hole 212 of fixing hole 204, adjust magnetic part 206 in the position of the positioning hole 212 of fixing hole 204, thereby control the distance of magnetic part 206 and screw 110, and then adjustment puts on the magnetic force on the first holder 100 and the second holder 200.
Be appreciated that magnetic part 206 is made to the mode that a bolt just makes magnetic part 206 move along fixing hole 204, but the invention is not restricted to this.As, also can a plurality of draw-in grooves be set fixing hole 204 is interior, so that magnetic part 206 is fastened on to different positions, can make too magnetic part 206 move along the depth direction of fixing hole 204.
Be appreciated that, the first holder 100 and the second holder 200 axial symmetry, and be to produce eccentric force when the first holder 100 and the second holder 200 rotate with rotating shaft 30 with the coaxial setting of rotating shaft 30 of automatic coil winding machine, be a preferred version, but the invention is not restricted to this.
During clamping bobbin 20, first by the sheathed breasting axle 104 that enters the first holder 100 of bobbin 20, then enter breasting axle 104 by the sheathed hole 210 of the fixing hole of the second holder 200 204 is sheathed, effect due to screw 110 and 206 magnetic force of magnetic part, the first holder 100 and the second holder 200 attract each other, thereby bobbin 20 is clamped.Meanwhile, the position that also can adjust magnetic part 206 according to the ability to bear of bobbin 20 changes the attraction of screw 110 and 206 of magnetic parts, and then changes the pressure of the first holder 100 and 200 pairs of bobbins 20 of the second holder, in order to avoid damage bobbin 20.
Preferably, the first holder 100 also comprises that is set in breasting axle 104 plastic cement sleeves 112.Sleeve 112 damages bobbin 20 for preventing 20 of breasting axle 104 and bobbins from producing friction.
Preferably, the first holder 100 also comprises the shell fragment 114 of.Shell fragment 114 is made by having flexible material, as plastics.One side of shell fragment 114 offers two the second screws 116, and the side surface 109 of the first noumenon 102 offers the 3rd screw 118 of two correspondences the second screw 116 near the position of upper surface 103.Shell fragment 114 is fixed on the first noumenon 102 and with the first noumenon 102 and is fitted tightly by the second screw 116 and the 3rd screw 118 by two the second screws 120.Shell fragment 114 is for the end of a thread of fixed coil when bobbin 20 starts coiling (not shown).
Preferably, on the upper surface 103 of the first noumenon 102, be provided with first stator 122, the second holders 200 and comprise an end face 215 towards breasting axle 104 that is positioned at sheathed hole 210, on end face 215, be provided with second stator 216.The first stator 122 and the second stator 216 respectively two end faces of corresponding bobbin 20 (figure is mark not) also engage with two end faces respectively, for further fixed coil frame 20, prevent that bobbin 20 from skidding in coiling process.
Those skilled in the art will be appreciated that; above execution mode is only for the present invention is described; and be not used as limitation of the invention; as long as within connotation scope of the present invention, within the appropriate change that above embodiment is done and variation all drop on the scope of protection of present invention.
Claims (10)
1. a coil rack fixing device, for the bobbin of voice coil motor being fixed on to the rotating shaft of automatic coil winding machine, this coil rack fixing device comprises the first holder and second holder that are fixed on the rotating shaft of this automatic coil winding machine; This first holder comprises a breasting axle that is fixed on the rotating shaft of this automatic coil winding machine, and this breasting axle comprises a magnetic conduction portion away from one end of the rotating shaft of this automatic coil winding machine; Thereby this second holder offers the magnetic part that a fixing hole for sheathed this breasting axle and are arranged in this fixing hole and can move along the depth direction of this fixing hole and fix the distance between itself and this magnetic conduction portion of adjusting; This first holder also comprise one be set on breasting axle for preventing between this breasting axle and this bobbin producing the sleeve of the plastic cement of friction.
2. coil rack fixing device as claimed in claim 1, is characterized in that, the rotating shaft of this first holder and the second holder and this automatic coil winding machine coaxially arranges.
3. coil rack fixing device as claimed in claim 1, it is characterized in that, this first holder comprises that one from the extended the first noumenon of this rotating shaft, and this first noumenon comprises a upper surface away from rotating shaft, a lower surface near rotating shaft and a side surface that connects this upper surface and this lower surface; Described breasting axle is arranged on this upper surface.
4. coil rack fixing device as claimed in claim 3, is characterized in that, this first holder comprises a shell fragment; Shell fragment fits tightly the position of close described upper surface on the side of described the first noumenon.
5. coil rack fixing device as claimed in claim 3, is characterized in that, is provided with one for engaging the first stator of described bobbin on the upper surface of this first noumenon.
6. coil rack fixing device as claimed in claim 3, is characterized in that, this breasting axle comprises the screw of an axis body and a magnetic conduction; This axis body comprise mutually back to an end face away from rotating shaft and the bottom surface of a relative end face, on this end face, vertically offer one to screw that should screw; This screw screws togather to this screw, and the upper surface of this bottom surface and this first noumenon mutually combines.
7. coil rack fixing device as claimed in claim 6, is characterized in that, this axis body is made by high magnetoresistance material.
8. coil rack fixing device as claimed in claim 1, is characterized in that, this second holder comprises the second body that a high magnetoresistance material is made; Described fixing hole runs through this second body, and this fixing hole comprises near the sheathed hole of described breasting axle and away from the positioning hole of described breasting axle.
9. coil rack fixing device as claimed in claim 8, is characterized in that, this magnetic part is a bolt of being made by permeability magnetic material; The inwall of the positioning hole of this fixing hole offers screw thread that should bolt.
10. coil rack fixing device as claimed in claim 8, is characterized in that, the end face towards this breasting axle that this second holder is positioned at described sheathed hole offers one for engaging the second stator of described bobbin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300179.4A CN102122865B (en) | 2010-01-11 | 2010-01-11 | Coil rack fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300179.4A CN102122865B (en) | 2010-01-11 | 2010-01-11 | Coil rack fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102122865A CN102122865A (en) | 2011-07-13 |
| CN102122865B true CN102122865B (en) | 2014-02-19 |
Family
ID=44251347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010300179.4A Expired - Fee Related CN102122865B (en) | 2010-01-11 | 2010-01-11 | Coil rack fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102122865B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888992A (en) * | 2017-12-06 | 2019-06-14 | 宁波泓乾电子有限公司 | A kind of VCM coil grip device |
-
2010
- 2010-01-11 CN CN201010300179.4A patent/CN102122865B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102122865A (en) | 2011-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20160111 |