CN201681606U - Split type yoke used for optical picker - Google Patents
Split type yoke used for optical picker Download PDFInfo
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- CN201681606U CN201681606U CN201020200791XU CN201020200791U CN201681606U CN 201681606 U CN201681606 U CN 201681606U CN 201020200791X U CN201020200791X U CN 201020200791XU CN 201020200791 U CN201020200791 U CN 201020200791U CN 201681606 U CN201681606 U CN 201681606U
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- yoke
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Abstract
The utility model relates to the technical field of yoke, especially a split type yoke used for optical picker comprising a support, a magnet and a split type yoke. The magnet is disposed on the yoke, which is fixedly inserted in the support. The combination surface of the yoke and the support is disposed a protruding point, and an interference fit is provided between the yoke and the support by using the protruding point. By using the interference fit in the utility model, the structure of the yoke and the support can be simplified, the processing molding is easy, the accuracy requirement can be lowered, production efficiency can be improved and the production costs can be reduced. The accuracy requirement can be lowered by pressing the yoke into the support, the flexible yoke and the broken support can be replaced during the assembly process. The utility model has advantages of low defective fraction of assembly, ability of improving the reliability of the automatic operation of machines, improving the assembly efficiency and lowering the production costs of the optical picker.
Description
Technical field:
The utility model relates to the yoke technical field, refers in particular to the split type yoke that is used for optical pickup apparatus.
Background technology:
Yoke is optical pickup apparatus important composition portion product, plays and support positioning magnet, strengthens effects such as magnetic field, and existing yoke mainly contains monoblock type yoke and split type yoke two kinds.The accurate positioning of monoblock type yoke, yoke and support adopt screw to fix more, and shortcoming is that manufacturing cost is higher, the big Heavy Weight of volume; Split type yoke volume lower weight is light, and yoke and support mostly are formula and fix, and manufacturing cost is lower.So satisfying under the prerequisite of bearing accuracy the split type yoke of many employings in the actual production.
For guaranteeing that yoke cooperates tight ness rating with support, split type yoke fit system is an interference fit.See shown in Figure 1ly, the interference fit of existing split type yoke 13 adopts and establishes both sides of the chest 14 cooperate with yoke 13 on the assembling face of support 11, thereby magnet 12 is fixed.During assembling, the part that yoke 13 coboundarys eliminate support ribs 14 forms groove, closely cooperates to reach.But in actual production, moulding support ribs 14 sizes are difficult to management, are easy to generate burr, and assembling is inconvenient, and this kind cooperation is all had relatively high expectations to yoke 13 manufacturing accuracy and mounting equipment bearing accuracy.During so yoke 13 is produced with the assembling of support 11, bad phenomenon such as support 11 ruptures, yoke 13 assemblings are loosening, support 11 distortion often take place, reduced the production efficiency of optical pickup apparatus, increased manufacturing cost.
The utility model content:
The purpose of this utility model is exactly the deficiency that exists at prior art and provide a kind of mode that cooperates by salient point to simplify package assembly, reduce positioning accuracy request, enhance productivity, reduce the split type yoke that is used for optical pickup apparatus of manufacturing cost.
To achieve these goals, the technical solution adopted in the utility model is: the split type yoke that is used for optical pickup apparatus, it includes support, magnet and split type yoke, magnet is arranged on the yoke, yoke plugs and is fixed in the support, convex with salient point on the faying face of yoke and support, yoke is by salient point and support interference fit.
Described salient point is to form in stamping forming mode on yoke, forms concave point on the corresponding stamping surface of yoke.
The faying face edge of described yoke and support is provided with chamfering.
Described concave point is a circular configuration.
The utility model beneficial effect is: the split type yoke that is used for optical pickup apparatus that the utility model provides, it includes support, magnet and split type yoke, magnet is arranged on the yoke, yoke plugs and is fixed in the support, convex with salient point on the faying face of yoke and support, yoke is by salient point and support interference fit, the mode that the utility model cooperates by salient point, simplify the package assembly of yoke and support, machine-shaping is easy, accuracy requirement is lower, enhances productivity, reduces manufacturing cost; And positioning accuracy request was low when yoke was pressed into support, bad phenomenon such as the yoke that takes place in producing is loosening, support breakage have been avoided assembling, the assembly failure rate is low, the mechanical automation operational reliability improves, can realize automated job fully, improve packaging efficiency, reduce the optical pickup apparatus cost of manufacture.
Description of drawings:
Fig. 1 is the decomposing schematic representation of prior art;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is a decomposing schematic representation of the present utility model;
Fig. 4 is the vertical view of the utility model yoke.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, see shown in Fig. 2～4, the utility model includes support 21, two magnets 22 and two split type yokes 23, magnet 22 is arranged on the yoke 23, yoke 23 plugs and is fixed in the support 21, split type yoke 23 is assembled with magnet 22 earlier, whole afterwards being pressed in the assembly hole of support 21, and magnet 22 physical dimension, magnetic flux do not change.The faying face 231 of yoke 23 and support 21 is positioned at the side of yoke 23, convex with circular salient point 232 on this faying face 231, salient point 232 is to form in stamping forming mode on yoke 23, on yoke 23 corresponding stamping surfaces, form concave point 233, the face that support 21 cooperates with yoke 23 then is the plane, and yoke 23 is by salient point 232 and support 21 interference fit.Yoke 23 is provided with chamfering 234 with faying face 231 edges of support 21, makes things convenient for yoke 23 to insert in the support 21.
The utility model is simplified the package assembly of yoke 23 and support 21 by the mode that salient point 232 cooperates, and adopts the punching press method for making, and chamfering 234 is easy with salient point 232 machine-shapings, and accuracy requirement is lower, enhances productivity, reduces manufacturing cost; And positioning accuracy request was low when yoke 23 was pressed into support 21, bad phenomenon such as support 21 fractures, yoke 23 assemblings that take place in producing are become flexible, support 21 distortion have been avoided assembling, the assembly failure rate is low, the mechanical automation operational reliability improves, can realize automated job fully, improve packaging efficiency, reduce the optical pickup apparatus cost of manufacture.
Certainly, the above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (4)
1. the split type yoke that is used for optical pickup apparatus, it includes support (21), magnet (22) and split type yoke (23), magnet (22) is arranged on the yoke (23), yoke (23) plugs and is fixed in the support (21), it is characterized in that: convex with salient point (232) on the faying face (231) of described yoke (23) and support (21), yoke (23) is by salient point (232) and support (21) interference fit.
2. the split type yoke that is used for optical pickup apparatus according to claim 1 is characterized in that: described salient point (232) is to go up in yoke (23) to form in stamping forming mode, forms concave point (233) on the corresponding stamping surface of yoke (23).
3. the split type yoke that is used for optical pickup apparatus according to claim 1 is characterized in that: described yoke (23) is provided with chamfering (234) with faying face (231) edge of support (21).
4. according to any described split type yoke that is used for optical pickup apparatus of claim 1-3, it is characterized in that: described concave point (233) is a circular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020200791XU CN201681606U (en) | 2010-05-10 | 2010-05-10 | Split type yoke used for optical picker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020200791XU CN201681606U (en) | 2010-05-10 | 2010-05-10 | Split type yoke used for optical picker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681606U true CN201681606U (en) | 2010-12-22 |
Family
ID=43346643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020200791XU Expired - Fee Related CN201681606U (en) | 2010-05-10 | 2010-05-10 | Split type yoke used for optical picker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681606U (en) |
-
2010
- 2010-05-10 CN CN201020200791XU patent/CN201681606U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20160510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |