CN105423846A - Special jig for PCB (Printed Circuit Board) dimension detection - Google Patents
Special jig for PCB (Printed Circuit Board) dimension detection Download PDFInfo
- Publication number
- CN105423846A CN105423846A CN201510933888.9A CN201510933888A CN105423846A CN 105423846 A CN105423846 A CN 105423846A CN 201510933888 A CN201510933888 A CN 201510933888A CN 105423846 A CN105423846 A CN 105423846A
- Authority
- CN
- China
- Prior art keywords
- pcb
- needle plate
- thimble
- size
- spanner
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Abstract
The invention discloses a special jig for PCB (Printed Circuit Board) dimension detection. The jig comprises a base, a needle plate and a template, wherein the needle plate is positioned above the base, the template is positioned above the needle plate, at least two vertical guide rods are fixed on the base, the upper ends of the guide rods are fixedly connected with the template, the needle plate is provided with through holes penetrating through the guide rods, the needle plate can move up and down along the guide rods, the upper surface of the template is sunken to form a dimensional groove, the dimensional groove is provided with a plurality of through holes in the bottom surface, a plurality of thimbles are fixed on the needle plate, the plurality of thimbles correspond to the plurality of through holes, the thimbles can penetrate through the corresponding through holes, a thimble spanner is fixed on the base, the thimble spanner is provided with a jacking portion and a handle portion, and the jacking portion of the thimble spanner presses against the bottom surface of the needle plate. According to the jig, whether the dimension of a PCB is qualified or not is judged by putting the PCB into the dimensional groove synthesizing standard dimension and tolerance, the thimbles are lifted by pulling the thimble spanner after detection, and the PCB is upwards ejected by the thimbles, so that the PCB can be conveniently taken out.
Description
Technical field
The invention belongs to the detection field of printed circuit board (PCB), be specifically related to a kind of tool being exclusively used in PCB size detection.
Background technology
PCB more or less there will be the deviation of some sizes in the fabrication process, generally in margin tolerance for accepting, otherwise be considered as unacceptable product.In prior art, the general surveying instrument that adopts detects PCB size, and conventional is 3D measuring instrument.But although such checkout equipment detection precision is higher, cost of equipment is also high, and operation requirements is high, and then causes PCB also higher at the cost of this link of size detection.And detect the every size on one side of PCB with such checkout equipment, carry out after then carrying out data analysis determining whether certified products, this process is also more consuming time.
Summary of the invention
In order to solve the problem, the invention provides a kind of PCB size detection special fixture, by simply putting into operation, this PCB size detection special fixture can judge that whether the size of PCB is in margin tolerance, jig structure is cleverly utilized to reduce the cost of PCB size detection, and convenient operation, improve the efficiency of PCB size detection.
The present invention in order to the technical scheme solving its technical matters and adopt is:
A kind of PCB size detection special fixture, comprise base, needle plate and template, described needle plate is positioned at directly over described base, described template is positioned at directly over described needle plate, described base is fixed with at least two vertical guide rods, the upper end of described guide rod is fixedly connected with described template, described needle plate is provided with the perforation being through at described guide rod, described needle plate can move up and down along described guide rod, the upper surface of described template is configured with sized recess to lower recess, the bottom surface of described sized recess is provided with some through holes, described needle plate is fixed with some thimbles, the position of some described thimbles is corresponding with the position of some described through holes, described thimble can through corresponding through hole, described base is fixed with thimble spanner, described thimble spanner has top and handle portion, the bottom surface of described needle plate is supported in the top of described thimble spanner.
The present invention in order to the further technical scheme solving its technical matters and adopt is:
Further, described sized recess is provided with two and is respectively size critical groove bigger than normal and size critical groove less than normal, the size of described size critical groove bigger than normal equals PCB standard size and adds tolerance value, and the size of described size critical groove less than normal equals PCB standard size and deducts tolerance value.
Further, described size critical groove less than normal is positioned at described size critical groove bigger than normal, and is form to lower recess from the bottom surface of described size critical groove bigger than normal.
Further, described template is punching block.
Further, described base is wood based panel.
Further, described needle plate is wood based panel.
Further, on the bottom surface of described needle plate and the position contacted with the top of described thimble spanner is coated with wearing layer.Further, described wearing layer is steel plate, and described Interal fixation is in described needle plate.
Further, described base is fixed with thimble spanner holder, described thimble spanner is made up of top, installation portion and handle portion, described installation portion is integrally connected between described top and described handle portion, and described thimble spanner is rotationally connected with described thimble spanner holder in described installation portion place.
Further, described guide rod is provided with four, and is uniformly distributed in the edge of described base
The invention has the beneficial effects as follows: by PCB being put into the sized recess combining standard size and tolerance, the present invention mainly judges that whether PCB size is qualified, then carry out lifting thimble by pulling thimble spanner after detection completes, by thimble, PCB is upwards ejected, be convenient to take out PCB.Therefore, by simply putting into operation, this PCB size detection special fixture can judge that whether the size of PCB is in margin tolerance, jig structure is cleverly utilized to reduce the cost of PCB size detection, and convenient operation, improve the efficiency of PCB size detection.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present invention;
Fig. 2 is the vertical view structural representation of template of the present invention.
Embodiment
Below by way of specific instantiation, the specific embodiment of the present invention is described, those skilled in the art can understand advantage of the present invention and effect easily by content disclosed in the present specification.The present invention also can be implemented in further, different ways, that is, not departing under disclosed category, can give different modifications and change.
Embodiment: a kind of PCB size detection special fixture, as depicted in figs. 1 and 2, comprise base 1, needle plate 2 and template 3, described needle plate is positioned at directly over described base, described template is positioned at directly over described needle plate, described base is fixed with at least two vertical guide rods 4, the upper end of described guide rod is fixedly connected with described template, described needle plate is provided with the perforation being through at described guide rod, described needle plate can move up and down along described guide rod, the upper surface of described template is configured with sized recess to lower recess, the bottom surface of described sized recess is provided with some through holes 5, described needle plate is fixed with some thimbles 6, the position of some described thimbles is corresponding with the position of some described through holes, described thimble can through corresponding through hole, described base is fixed with thimble spanner 7, described thimble spanner has top and handle portion, the bottom surface of described needle plate is supported in the top of described thimble spanner.
Described sized recess is provided with two and is respectively size critical groove 81 bigger than normal and size critical groove 82 less than normal, the size of described size critical groove bigger than normal equals PCB standard size and adds tolerance value, and the size of described size critical groove less than normal equals PCB standard size and deducts tolerance value.Described size critical groove less than normal is positioned at described size critical groove bigger than normal, and is form to lower recess from the bottom surface of described size critical groove bigger than normal.
Described template is punching block, and described base is wood based panel, and described needle plate is wood based panel.
The position contacted on the bottom surface of described needle plate and with the top of described thimble spanner is coated with wearing layer 9.Described wearing layer is steel plate, and described Interal fixation is in described needle plate.
Described base is fixed with thimble spanner holder 10, described thimble spanner is made up of top, installation portion and handle portion, described installation portion is integrally connected between described top and described handle portion, and described thimble spanner is rotationally connected with described thimble spanner holder in described installation portion place.
Described guide rod is provided with four, and is uniformly distributed in the edge of described base.
The course of work of the present invention and principle as follows:
One. before detection PCB size, ensure that the needle plate of this PCB size detection special fixture and thimble sink, make thimble not higher than sized recess bottom surface;
Two. tested PCB is put into sized recess, if PCB can put into size critical groove less than normal, then judges that this tested PCB size is less than normal defective; If PCB is put the very little critical groove less than normal of not drilling depth and can be put into size critical groove bigger than normal, then judge this tested PCB size qualification; If PCB puts not drilling depth cun critical groove bigger than normal, then judge that this tested PCB is bigger than normal defective as size;
Three. being then carry out lifting thimble by pulling thimble spanner after having detected, by thimble, PCB upwards being ejected, be convenient to take out PCB.
Claims (10)
1. a PCB size detection special fixture, it is characterized in that: comprise base (1), needle plate (2) and template (3), described needle plate is positioned at directly over described base, described template is positioned at directly over described needle plate, described base is fixed with at least two vertical guide rods (4), the upper end of described guide rod is fixedly connected with described template, described needle plate is provided with the perforation being through at described guide rod, described needle plate can move up and down along described guide rod, the upper surface of described template is configured with sized recess to lower recess, the bottom surface of described sized recess is provided with some through holes (5), described needle plate is fixed with some thimbles (6), the position of some described thimbles is corresponding with the position of some described through holes, described thimble can through corresponding through hole, described base is fixed with thimble spanner (7), described thimble spanner has top and handle portion, the bottom surface of described needle plate is supported in the top of described thimble spanner.
2. PCB size detection special fixture as claimed in claim 1, it is characterized in that: described sized recess is provided with two and is respectively size critical groove bigger than normal (81) and size critical groove (82) less than normal, the size of described size critical groove bigger than normal equals PCB standard size and adds tolerance value, and the size of described size critical groove less than normal equals PCB standard size and deducts tolerance value.
3. PCB size detection special fixture as claimed in claim 2, is characterized in that: described size critical groove less than normal is positioned at described size critical groove bigger than normal, and is form to lower recess from the bottom surface of described size critical groove bigger than normal.
4. PCB size detection special fixture as claimed in claim 1, is characterized in that: described template is punching block.
5. PCB size detection special fixture as claimed in claim 1, is characterized in that: described base is wood based panel.
6. PCB size detection special fixture as claimed in claim 1, is characterized in that: described needle plate is wood based panel.
7. PCB size detection special fixture as claimed in claim 6, is characterized in that: the position contacted on the bottom surface of described needle plate and with the top of described thimble spanner is coated with wearing layer (9).
8. PCB size detection special fixture as claimed in claim 7, is characterized in that: described wearing layer is steel plate, and described Interal fixation is in described needle plate.
9. PCB size detection special fixture as claimed in claim 1, it is characterized in that: described base is fixed with thimble spanner holder (10), described thimble spanner is made up of top, installation portion and handle portion, described installation portion is integrally connected between described top and described handle portion, and described thimble spanner is rotationally connected with described thimble spanner holder in described installation portion place.
10. PCB size detection special fixture as claimed in claim 1, is characterized in that: described guide rod is provided with four, and is uniformly distributed in the edge of described base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933888.9A CN105423846A (en) | 2015-12-15 | 2015-12-15 | Special jig for PCB (Printed Circuit Board) dimension detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933888.9A CN105423846A (en) | 2015-12-15 | 2015-12-15 | Special jig for PCB (Printed Circuit Board) dimension detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105423846A true CN105423846A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933888.9A Pending CN105423846A (en) | 2015-12-15 | 2015-12-15 | Special jig for PCB (Printed Circuit Board) dimension detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105423846A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678393A (en) * | 2020-06-11 | 2020-09-18 | 武汉华兴达土地咨询有限公司 | Device and method for measuring house size |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7103985B1 (en) * | 2004-12-17 | 2006-09-12 | Roll Forming Corporation | Stringer check fixture and method |
| CN105043196A (en) * | 2015-07-28 | 2015-11-11 | 浙江雅博汽配有限公司 | Pin-block test fixture |
| CN205373570U (en) * | 2015-12-15 | 2016-07-06 | 竞陆电子(昆山)有限公司 | Special tool of PCB size detection |
-
2015
- 2015-12-15 CN CN201510933888.9A patent/CN105423846A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7103985B1 (en) * | 2004-12-17 | 2006-09-12 | Roll Forming Corporation | Stringer check fixture and method |
| CN105043196A (en) * | 2015-07-28 | 2015-11-11 | 浙江雅博汽配有限公司 | Pin-block test fixture |
| CN205373570U (en) * | 2015-12-15 | 2016-07-06 | 竞陆电子(昆山)有限公司 | Special tool of PCB size detection |
Non-Patent Citations (1)
| Title |
|---|
| 杨德辉: "《最新钻模夹具技术》", 31 January 1975, 全华科技图书股份有限公司 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678393A (en) * | 2020-06-11 | 2020-09-18 | 武汉华兴达土地咨询有限公司 | Device and method for measuring house size |
| CN111678393B (en) * | 2020-06-11 | 2022-05-03 | 武汉华兴达土地咨询有限公司 | Device and method for measuring house size |
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Application publication date: 20160323 |