CN201786846U - Positioning dowel and working table - Google Patents
Positioning dowel and working table Download PDFInfo
- Publication number
- CN201786846U CN201786846U CN2010205129707U CN201020512970U CN201786846U CN 201786846 U CN201786846 U CN 201786846U CN 2010205129707 U CN2010205129707 U CN 2010205129707U CN 201020512970 U CN201020512970 U CN 201020512970U CN 201786846 U CN201786846 U CN 201786846U
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- dowel
- positioning
- positioning dowel
- fixed
- table top
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- 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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Abstract
The utility model relates to the field of printed circuit board manufacturing, in particular to a positioning dowel and a working table. The positioning dowel comprises a dowel head and a dowel tail, the dowel head consists of a plurality of elastic parts, the front ends of the elastic parts are gradually reduced to jointly form a tip of the dowel head, and the rear ends of the elastic parts are fixed to the front end of the dowel tail. The positioning dowel can solve the problems of incapability of sleeving a positioning dowel or loosening of a sleeved positioning dowel and the like during plate forming and processing, and can improve size precision of plate forming and processing.
Description
Technical field
The utility model relates to printed wiring board and makes the field, particularly relates to a kind of positioning dowel and worktable.
Background technique
In the printed wiring board shaping operation, large-sized printed wiring board is cut into several pieces printed wire board finished products according to the specification of finished product, encapsulate then.Wherein, the mode of cutting large size printed wiring board is: at first be enclosed within several pieces large scale printed wiring boards on the positioning dowel of table top by the positioning hole on the printed wiring board, thereby several pieces large scale printed wiring boards are overlapped on the table top fixing, then molding machine cuts large-sized printed wiring board by the formula of printed wiring board model correspondence with milling cutter.
Wherein, the positioning hole during the printed wiring board shaping operation is to adopt through hole that machine drillings make as positioning hole at four plate angles of large scale printed wiring board.And employing single-column shape positioning dowel on the table top of prior art.But varying aperture may appear because the quality of positioning hole is subjected to the influence of the plating after machine drilling and the boring, hole shape is bad or hole shape destroys, the varying aperture of positioning hole is in the 2.0mm-3.2mm scope usually.Therefore when printed wiring board is carried out shaping operation, tend to occur the situation that printed wiring board to be cut can not put positioning dowel, situations such as loosening occur after perhaps putting positioning dowel, increase the size deviation of printed wiring board shaping operation, even generation is scrapped.
The model utility content
The utility model provides a kind of positioning dowel and worktable, occurs situations such as loosening after can avoiding sheet metal forming to add can not putting positioning dowel man-hour or put positioning dowel, can improve the size precision that sheet metal forming adds man-hour.
A kind of positioning dowel comprises:
Ailhead, it is made of a plurality of elastic members, and the front end convergent of described a plurality of elastic members is with the tip of the described ailhead of common formation;
The nail tail, the rear end of described a plurality of elastic members is fixed to the front end of described nail tail.
Preferably, described ailhead comprises at least two at continuous silk or the sheet that forms the arc of cone point of front end.
The worktable of a kind of sheet metal forming processing comprises table top, and is fixed on being used on the table top and locatees the positioning dowel of described plate.
Preferably, have fixed hole in the described table top, the nail tail of described positioning dowel is fixed in the described fixed hole.
The positioning dowel that the utility model provides, the positioning dowel of existing single-column shape changed into comprise ailhead and the two-part positioning dowel of nail tail, and ailhead is made of a plurality of elastic members, can insert in the positioning hole of printed wiring board, and and the positioning hole that is arranged on printed wiring board matches, the hole shape and the varying aperture that can adapt to positioning hole, the nail tail can be fixed on the table top, occur situations such as loosening after can avoiding sheet metal forming to add to put positioning dowel man-hour or put positioning dowel, and improve the size precision that sheet metal forming adds man-hour.
Description of drawings
The structural drawing of the positioning dowel that Fig. 1 provides for the utility model;
The structural drawing of the worktable of the printed wiring board shaping operation that Fig. 2 provides for the utility model.
Embodiment
Because existing positioning dowel adopts the shape of single-column shape, therefore when the varying aperture of printed wiring board or hole shape are bad, can cause printed wiring board can not put positioning dowel or put positioning dowel after situations such as loosening appear, the size deviation in the time of can increasing the printed wiring board shaping operation.The utility model embodiment provides a kind of positioning dowel, the positioning dowel of existing single-column shape changed into by ailhead and nail tail two-part form, wherein, ailhead is made of a plurality of elastic members, and the rear end of a plurality of elastic members is fixed to the front end of nail tail, like this, when printed wiring board puts positioning dowel, the ailhead that is made of elastic member can adapt to the hole shape and the varying aperture of positioning hole, the positioning hole that guarantees printed wiring board all can put positioning dowel to realize the fixing size precision when improving the printed wiring board shaping operation.
The utility model embodiment provides a kind of positioning dowel, as shown in Figure 1, comprises ailhead 11 and nail tail 12, wherein:
Ailhead 11 is used for inserting the positioning hole of printed wiring board, and it is made up of a plurality of elastic members, and the front end convergent of a plurality of elastic members is with the tip of common formation ailhead 11;
When carrying out the shaping operation of printed wiring board, the positioning hole of printed wiring board is inserted on the ailhead 11 of positioning dowel, and ailhead 11 is made up of a plurality of elastic members, therefore ailhead 11 can adapt to the positioning hole in different hole shapes or aperture, can guarantee that the positioning hole of printed wiring board all can be by putting positioning dowel when the hole shape of the positioning hole of printed wiring board and varying aperture;
Preferably, ailhead 11 comprises: at least two at continuous silk or the sheet that forms the arc of cone point of front end, like this when the hole shape of positioning hole or varying aperture, the ailhead of being made up of arc silk or sheet 11 can adapt to the hole shape or the varying aperture of positioning hole, guarantee that positioning dowel can be inserted in positioning hole, and after positioning dowel was inserted in positioning hole, the center of circle of positioning hole and the axis of positioning dowel overlapped as far as possible, the precision during with raising printed wiring board shaping operation;
Certainly, ailhead 11 can also be the ball shape of being made up of thin metal cylinder of some arcs or tinsel;
Preferably, elastic member is made up of metal or plastics;
During use, can the positioning hole of ailhead 11 and printed wiring board is corresponding one by one, ailhead is fixed on the table top, when carrying out the shaping operation of printed wiring board, the positioning hole of printed wiring board is enclosed within on the ailhead, cut again and get final product;
Nail tail 12, the rear end of a plurality of elastic members is fixed to the front end of nail tail 12;
The rear end of nail tail 12 front ends and a plurality of elastic members is connected, and nail tail rear end is fixedly connected on the table top, is used for ailhead 11 is fixed on table top.
Preferably, nail tail 12 is specially a cylindrical body, and nail tail 12 is fixed on the table top, and means of fixation is generally: have fixed hole in table top, will follow closely tail again and be fixed in the fixed hole, be about to positioning dowel like this and be fixed on the table top.Preferably, nail also has screw thread on the tail 12, and fixed hole is tapped hole, then positioning dowel tightly can be fixed on the table top.
Certainly, the shape of nail tail can be set arbitrarily as required, as long as the ailhead of positioning dowel can be fixed on the table top, certainly, means of fixation also has multiple, for example welding.
Certainly, the nail tail inserts the fixed hole degree of depth and can determine as required, can all insert in the fixed hole of table top, or part is inserted in the fixed hole of table top, when the nail portion is inserted in the fixed hole of table top, the length that is reserved in the outer nail tail of table top is less than the total thickness of printed wiring board to be processed, can guarantee like this when shaping operation, the ailhead that is made of elastic member can insert in the positioning hole of printed wiring board, and the cross-sectional dimension that is reserved in the outer nail tail of table top is less than the size of the positioning hole that equals printed circuit board, to guarantee that what printed wiring board to be processed can be overlapping is placed on the table top when the nail portion is reserved in outside the table top.
During use, when the position of the positioning dowel on being fixed on table top need change, positioning dowel can be extracted from fixed hole, positioning dowel is inserted in boring on table top again.
Preferably, positioning dowel ailhead 11 and nail tail 12 select for use stainless steel or alloy material to make, and can improve the wear resistance of positioning dowel, and the elasticity of the elastic member of ailhead 11 is moderate and more easy to clean simultaneously.
As shown in Figure 2, the utility model also provides a kind of worktable of sheet metal forming processing, comprises table top 22, and the positioning dowel that be used for positioning plate 21 of said fixing on table top.
Preferably, have fixed hole in the table top, and the nail tail of positioning dowel 21 is fixed in the positioning hole;
Preferably, the fixed hole of table top 22 is a tapped hole, and has screw thread on the nail tail of positioning dowel 21;
Preferably, above-mentioned worktable can be used for the shaping operation of printed wiring board, and positioning dowel 21 is used to locate printed wiring board.
During use, when the position of the positioning dowel 21 on being fixed on table top need change, can make a plurality of table tops as required, and need the position arbitrarily what positioning dowel was fixed on table top; Positioning dowel can certainly be extracted, positioning dowel is inserted in boring on table top again.
Positioning dowel that the utility model provides and the worktable that is used for sheet metal forming processing that is fixed with positioning dowel, the elastic member of positioning dowel can adapt to the hole shape of positioning hole of printed wiring board and the variation in aperture, therefore, can guarantee when the printed wiring board shaping operation, even the hole shape of printed wiring board and varying aperture, printed wiring board still can put positioning dowel, and can not become flexible, the size precision when improving the printed wiring board shaping operation.
Only the structure of example explanation positioning dowel and the worktable that is fixed with positioning dowel among the utility model embodiment with the fixed printed circuit board, but the positioning dowel in the utility model can be used for all plates to be fixed, and worktable of the present utility model can be used for all sheet metal forming processing.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (8)
1. a positioning dowel is characterized in that, comprising:
Ailhead, it is made of a plurality of elastic members, and the front end convergent of described a plurality of elastic members is with the tip of the described ailhead of common formation;
The nail tail, the rear end of described a plurality of elastic members is fixed to the front end of described nail tail.
2. positioning dowel as claimed in claim 1 is characterized in that, described ailhead comprises at least two at continuous silk or the sheet that forms the arc of cone point of front end.
3. positioning dowel as claimed in claim 1 or 2 is characterized in that, described nail tail is a cylindrical body.
4. positioning dowel as claimed in claim 3 is characterized in that, has screw thread on the described nail tail.
5. the worktable of sheet metal forming processing comprises table top, and be fixed on being used on the table top locate described plate as each described positioning dowel of claim 1 to 3.
6. worktable as claimed in claim 5 is characterized in that, has fixed hole in the described table top, and the nail tail of described positioning dowel is fixed in the described fixed hole.
7. worktable as claimed in claim 6 is characterized in that, the fixed hole in the described table top is a tapped hole, has screw thread on the nail tail of described positioning dowel.
8. as each described worktable among the claim 5-7, it is characterized in that described plate is a printed circuit board (PCB).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205129707U CN201786846U (en) | 2010-08-31 | 2010-08-31 | Positioning dowel and working table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205129707U CN201786846U (en) | 2010-08-31 | 2010-08-31 | Positioning dowel and working table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786846U true CN201786846U (en) | 2011-04-06 |
Family
ID=43818811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205129707U Expired - Fee Related CN201786846U (en) | 2010-08-31 | 2010-08-31 | Positioning dowel and working table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786846U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364745A (en) * | 2015-11-06 | 2016-03-02 | 重庆长安汽车股份有限公司 | Positioning pin for workpiece assembly and disassembly |
| CN113927349A (en) * | 2021-10-22 | 2022-01-14 | 深圳市众博信发展有限公司 | Positioning system for manufacturing PCB |
-
2010
- 2010-08-31 CN CN2010205129707U patent/CN201786846U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364745A (en) * | 2015-11-06 | 2016-03-02 | 重庆长安汽车股份有限公司 | Positioning pin for workpiece assembly and disassembly |
| CN113927349A (en) * | 2021-10-22 | 2022-01-14 | 深圳市众博信发展有限公司 | Positioning system for manufacturing PCB |
| CN113927349B (en) * | 2021-10-22 | 2023-08-25 | 深圳市众博信发展有限公司 | Positioning system for manufacturing PCB |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20170831 |