CN201749134U - Laminating block and supporting rack of PCB testing clamp - Google Patents
Laminating block and supporting rack of PCB testing clamp Download PDFInfo
- Publication number
- CN201749134U CN201749134U CN2010202497088U CN201020249708U CN201749134U CN 201749134 U CN201749134 U CN 201749134U CN 2010202497088 U CN2010202497088 U CN 2010202497088U CN 201020249708 U CN201020249708 U CN 201020249708U CN 201749134 U CN201749134 U CN 201749134U
- Authority
- CN
- China
- Prior art keywords
- hierarchical block
- pcb
- block
- boss
- caulking groove
- 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
Links
Images
Abstract
The utility model discloses a laminating block and a supporting rack of a PCB (printed circuit board) testing clamp, wherein one end surface of the laminating block is provided with a boss; the corresponding position on the other end surface is provided with an embedding trough; and the bosses on the two adjacent laminating blocks are embedded with the embedding troughs respectively. In the utility model, the bosses and the embedding troughs are arranged between the upper end surface and the lower end surface of the laminating blocks of the PCB testing clamp, the bosses convexly extend out of a guide hole of a guide plate and are embedded with the embedding troughs on the other adjacent laminating block; therefore, the offsetting does not occur between the laminating blocks and between the laminating block and the guide plate; the testing effect of a PCB can be avoided to be affected; and the testing qualified rate and the testing efficiency can be improved.
Description
Technical field
The utility model relates to a kind of hierarchical block of PCB test fixture and the bracing frame that is made of hierarchical block.
Background technology
At present, along with the high speed development of PCB industry, the PCB product is also towards high precision, and highdensity direction is advanced.Like this, test has also brought very big pressure to PCB.For the PCB of those numbers of test points more (generally more than 5000 o'clock), it is particularly important that the stability of test fixture seems.In test process,, cause percent of pass low because trickle skew between the deformation of test fixture or layer and the layer all will greatly influence the effect of test.
See also Fig. 1, existing P CB test fixture is generally the sandwich construction that the multilayer guide plate constitutes, and generally is ten layers of structure, supports by hierarchical block between layer and the layer.See also Fig. 2 and Fig. 3, the hierarchical block of existing P CB test fixture generally adopts column structure, and the upper and lower surface of cylinder all is the plane, and so, test fixture is difficult to guarantee that the guide plate of each layer is not offset when in use.In case and test fixture stability is bad or guide plate has trickle skew, all can influence the test effect.Like this, be unfavorable for the raising of test passes rate and the raising of testing efficiency.
The utility model content
The technical matters that the utility model mainly solves provides a kind of hierarchical block and bracing frame of PCB test fixture, and is simple in structure, and connective stability is good, improves the PCB testing efficiency.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the hierarchical block that a kind of PCB test fixture is provided, one end face of described hierarchical block is provided with a boss, and the corresponding position of other end is provided with a caulking groove, and boss and caulking groove on adjacent two hierarchical blocks are chimeric mutually.
Wherein, described hierarchical block is cylindrical shape, and the xsect of described hierarchical block becomes toroidal.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of bracing frame is provided, the middle part of support frame as described above forms by hierarchical block is chimeric, one end face of described hierarchical block is provided with a boss, the corresponding position of other end is provided with a caulking groove, boss and caulking groove on adjacent two hierarchical blocks are chimeric mutually, the top of support frame as described above has the higher slice piece with described hierarchical block tabling, the lower surface of described higher slice piece is provided with first caulking groove with the boss tabling of described hierarchical block, the bottom of support frame as described above has the lower leaf piece with described hierarchical block tabling, and the upper surface of described lower leaf piece has second boss with the caulking groove tabling of described hierarchical block.
Wherein, the lower surface of the upper surface of described higher slice piece, lower leaf piece is the plane.
Wherein, described higher slice piece, lower leaf piece all are cylindrical shape, and the xsect of described hierarchical block becomes toroidal.
The beneficial effects of the utility model are: the both ends of the surface that are different from the hierarchical block between the guide plate of PCB test fixture of prior art are planes, between adjacent two hierarchical blocks, all take place easily between hierarchical block and the guide plate to slide and the situation of influence test effect.The hierarchical block of the utility model PCB test fixture is by being provided with projection and caulking groove between the upper and lower end face with hierarchical block, projection from the pilot hole of guide plate, protrude out with another adjacent hierarchical block on caulking groove chimeric mutually, thereby between hierarchical block and the hierarchical block, and all can not be offset between hierarchical block and the guide plate, thereby can avoid influencing the test effect of pcb board, improve test passes rate and testing efficiency.
Description of drawings
Fig. 1 is the user mode figure of the hierarchical block of existing PCB test fixture;
Fig. 2 is the structural representation of the hierarchical block of PCB test fixture among Fig. 1;
Fig. 3 is the cut-open view of the hierarchical block of PCB test fixture among Fig. 2;
Fig. 4 is the structural representation of a kind of embodiment of the hierarchical block of the utility model PCB test fixture;
Fig. 5 is the cut-open view of the hierarchical block of the utility model PCB test fixture;
Fig. 6 is another type structure cut-open view of the hierarchical block of the utility model PCB test fixture;
Fig. 7 is a type structure cut-open view again of the hierarchical block of the utility model PCB test fixture;
Fig. 8 is the user mode figure of the hierarchical block of the utility model PCB test fixture.
Embodiment
By describing technology contents of the present utility model, structural attitude in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
See also Fig. 4 and Fig. 5, the utility model provides a kind of hierarchical block of PCB test fixture, one end face of described hierarchical block 10 is provided with a boss 11, the corresponding position of other end is provided with a caulking groove 12, boss 11 on adjacent two hierarchical blocks 10 is chimeric mutually with caulking groove 12, described hierarchical block 10 is cylindrical shape, and the xsect of described hierarchical block 10 becomes toroidal.
The utility model hierarchical block 10 is used for adjacent two guide plates of connection PCB test fixture, and hierarchical block 10 is in the pilot hole of guide plate, and adjacent two hierarchical blocks 10 are chimeric mutually, thereby a plurality of guide plates are fixed into stepped construction.Described a plurality of hierarchical block 10 chimeric formation bracing frames are used for supporting the guide plate that constitutes described formation PCB test fixture.
See also Fig. 6, Fig. 7 and Fig. 8, in one embodiment, the middle part of support frame as described above is made of described hierarchical block 10 chimeric series connection, the top of support frame as described above has the higher slice piece 20 with described hierarchical block 10 tablings, the lower surface of described higher slice piece 20 is provided with first caulking groove 21 with boss 11 tablings of described hierarchical block 10, the bottom of support frame as described above has the lower leaf piece 30 with described hierarchical block 10 tablings, and the upper surface of described lower leaf piece 30 has second boss 31 with caulking groove 12 tablings of described hierarchical block 10.Described higher slice piece 20, lower leaf piece 30 all are cylindrical shape, and the xsect of described higher slice piece, lower leaf piece becomes toroidal.
Described higher slice piece 20 is used for fixing the B01 layer of test fixture and the guide plate of B1 layer.Described hierarchical block 10 is used for fixing the B1 layer of test fixture and the guide plate of B2 layer, B2 layer and B3 layer, B3 layer and B4 layer, B4 layer and B5 layer, B5 layer and B6 layer, B6 layer and B7 layer.30 of lower leaf pieces are used for fixing the guide plate of B7 layer and BU layer.
In the present embodiment, because bracing frame is connected and composed by hierarchical block 10, higher slice piece 20, lower leaf piece 30 tablings, guide plate closely is fixed between adjacent two hierarchical blocks, between hierarchical block 10 and the hierarchical block 10, can not slide between hierarchical block 10, higher slice piece 20, lower leaf piece 30 and the guide layer that is connected, thereby can avoid influence test effect, improve test passes rate and testing efficiency.
Among another embodiment, support frame as described above can only have a plurality of hierarchical block 10 chimeric formation, and promptly described higher slice piece 20, lower leaf piece 30 have the structure identical with described hierarchical block 10.
The both ends of the surface that are different from the hierarchical block between the guide plate of PCB test fixture of prior art are planes, between adjacent two hierarchical blocks 10, all take place easily between hierarchical block 10 and the guide plate to slide and the situation of influence test effect.The hierarchical block of the utility model PCB test fixture passes through on the hierarchical block 10, projection and caulking groove 12 are set between the lower surface, projection from the pilot hole of guide plate, protrude out with another adjacent hierarchical block 10 on caulking groove 12 chimeric mutually, thereby between hierarchical block 10 and the hierarchical block 10, and all can not be offset between hierarchical block 10 and the guide plate, can well fix the guide plate between each guide layer, in test, promoted the stability of test fixture greatly, thereby can avoid influencing the test effect of pcb board, improve test passes rate and testing efficiency.
In sum, the hierarchical block of the utility model PCB test fixture is simple in structure, connects the guide plate good stability and can not be offset, and improves the qualification rate of PCB to be measured.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. the hierarchical block of a PCB test fixture is characterized in that, an end face of described hierarchical block is provided with a boss, and the corresponding position of other end is provided with a caulking groove, and boss and caulking groove on adjacent two hierarchical blocks are chimeric mutually.
2. the hierarchical block of PCB test fixture according to claim 1 is characterized in that: described hierarchical block is cylindrical shape, and the xsect of described hierarchical block becomes toroidal.
3. bracing frame, it is characterized in that: the middle part of support frame as described above forms by hierarchical block is chimeric, one end face of described hierarchical block is provided with a boss, the corresponding position of other end is provided with a caulking groove, boss and caulking groove on adjacent two hierarchical blocks are chimeric mutually, the top of support frame as described above has the higher slice piece with described hierarchical block tabling, the lower surface of described higher slice piece is provided with first caulking groove with the boss tabling of described hierarchical block, the bottom of support frame as described above has the lower leaf piece with described hierarchical block tabling, and the upper surface of described lower leaf piece has second boss with the caulking groove tabling of described hierarchical block.
4. bracing frame according to claim 3 is characterized in that: the lower surface of the upper surface of described higher slice piece, lower leaf piece is the plane.
5. according to claim 3 or 4 described bracing frames, it is characterized in that: described higher slice piece, lower leaf piece all are cylindrical shape, and the xsect of described hierarchical block becomes toroidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202497088U CN201749134U (en) | 2010-07-06 | 2010-07-06 | Laminating block and supporting rack of PCB testing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202497088U CN201749134U (en) | 2010-07-06 | 2010-07-06 | Laminating block and supporting rack of PCB testing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749134U true CN201749134U (en) | 2011-02-16 |
Family
ID=43583810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202497088U Expired - Fee Related CN201749134U (en) | 2010-07-06 | 2010-07-06 | Laminating block and supporting rack of PCB testing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201749134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938256A (en) * | 2014-04-23 | 2014-07-23 | 昆山凯盈机械科技有限公司 | Guide plate for PCB (Printed Circuit Board) |
-
2010
- 2010-07-06 CN CN2010202497088U patent/CN201749134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938256A (en) * | 2014-04-23 | 2014-07-23 | 昆山凯盈机械科技有限公司 | Guide plate for PCB (Printed Circuit Board) |
| CN103938256B (en) * | 2014-04-23 | 2016-03-30 | 昆山凯盈机械科技有限公司 | A kind of guide plate of pcb board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202855789U (en) | Lamination template for crystalline silica solar cell module | |
| CN201749134U (en) | Laminating block and supporting rack of PCB testing clamp | |
| CN203011961U (en) | Wafer test probe card | |
| CN103386810B (en) | A kind of cost-saving large format composite halftone | |
| CN108633178A (en) | A kind of double-layer circuit board of perfect heat-dissipating | |
| CN203350285U (en) | Clamping device for detecting on-off of flying probe of flexible printed circuit board (PFC) | |
| CN202958055U (en) | Printed circuit board (PCB) multi-layer board superposed positioning device | |
| CN103018501B (en) | Wafer test probe card | |
| CN201925281U (en) | Waterproof connecting device | |
| CN203427438U (en) | Cost-saving large-format composite screen printing plate | |
| CN206632482U (en) | A kind of pcb board welds locating rack | |
| CN202758553U (en) | Light-emitting diode (LED) display screen with high flatness and box body of LED display screen | |
| CN203407091U (en) | Milling structure for a plurality of base material sheets | |
| CN103381700A (en) | Composite screen printing plate capable of reducing cost | |
| CN208568834U (en) | A kind of pcb board test fixture | |
| CN202310310U (en) | Aligning clamp used for laminated arrangements of unit boards | |
| CN201563291U (en) | Internal layer structure for circuit board | |
| CN205562745U (en) | Micropin test fixture | |
| CN206213540U (en) | Detachable desk | |
| CN204257681U (en) | A kind of laminated form board | |
| CN205898845U (en) | A tool for testing LED display screen | |
| CN203554516U (en) | Mobile phone based on SIM (subscriber identity module) card overhead surface-mount technology | |
| CN209249082U (en) | The exchanging structure of SSD test | |
| CN213546336U (en) | Battery piece diaphragm and photovoltaic module | |
| CN202282908U (en) | Backlight FPC (flexible printed circuit) structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20130706 |