CN203657717U - Testing fixture for measuring angle of taper hole of circuit board - Google Patents
Testing fixture for measuring angle of taper hole of circuit board Download PDFInfo
- Publication number
- CN203657717U CN203657717U CN201320775275.3U CN201320775275U CN203657717U CN 203657717 U CN203657717 U CN 203657717U CN 201320775275 U CN201320775275 U CN 201320775275U CN 203657717 U CN203657717 U CN 203657717U
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- China
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- dististyle
- bellmouth
- diameter
- cubing
- sounding rod
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a testing fixture for measuring the angle of a taper hole of a circuit board. The testing fixture comprises a depth gauge and a measuring end sheet, wherein the measuring end sheet can enter the taper hole. The depth gauge comprises a gauge body and a measuring rod, the measuring rod is connected to the gauge body and arranged under the gauge body, the measuring end sheet is detachably connected to the lower portion of the measuring rod, and the plane where the measuring end sheet is placed is vertical to the measuring rod. The testing fixture can rapidly and accurately measure the angle of the taper hole of the circuit board, and is simple in structure and low in manufacture cost.
Description
Technical field
The utility model relates to a kind of cubing, relates in particular to a kind of cubing of metering circuit plate bellmouth angle.
Background technology
When circuit board mounting related components, mainly adopt plurality of specifications (aperture, angle) countersunk head screw to be fixed on circuit board bellmouth.Along with high performance, the multifunction development of electronic product, size, the thickness of slab of PCB circuit board are more and more various, need the bellmouth angle of processing also varied.In circuit board process, because the parameter controls such as the wearing and tearing of tapered bur cutter or working depth are improper, the bellmouth angle of processing changes tolerance too greatly, cause the cone of countersunk head screw head and the bellmouth angle of circuit board is not mated, circuit board is fixing insecure or screw is surperficial does not flush, this brings very big risk to terminal test of circuit board, application.In recent years, being applied in " semiconductor die testing plate " on highly sophisticated device develops rapidly, such template overwhelming majority all thicker, size is larger, generally must processing bellmouth (diameter≤10mm), and to its angle tolerance control become gradually sternly (required angle tolerance is in 10 ° of +/-).Domestic mechanical processing industry is for the measurement of conical part angle, and the general means such as cutting (destructive measurement), standard taper plug gage or three-dimensional instrument open that adopt are measured, and these means need destructive measurement or surveying instrument cost is higher; Some " dial gauge+sleeve+proof-reading block " though angle detector cost low, can not detect the bellmouth of diameter≤10mm.
Summary of the invention
Based on this, the utility model is to overcome the defect of prior art, and a kind of cubing of metering circuit plate bellmouth angle is provided, and this cubing can realize to be measured fast and accurately to circuit board bellmouth angle, its simple in structure, low cost of manufacture.
Its technical scheme is as follows:
A kind of cubing of metering circuit plate bellmouth angle, comprise depth gauge and can enter the measurement dististyle of described bellmouth, depth gauge comprises table body and sounding rod, sounding rod is connected to described table body below, described measurement dististyle is removably connected to the bottom of sounding rod, and measure dististyle place plane and sounding rod perpendicular.
Choose the measurement dististyle of two different-diameter sizes, be designated as respectively the first measurement dististyle and second and measure dististyle, and the first diameter of measuring dististyle is designated as d1, the second diameter of measuring dististyle is designated as d2, and d1 is less than d2.When measurement, first the first measurement dististyle is connected to the bottom of sounding rod, the bottom surface of the first measurement dististyle and the plate face of pcb board are contacted, sounding rod is perpendicular to the plate face of pcb board, now depth gauge is returned to zero, then by sounding rod, the first measurement dististyle is inserted in bellmouth, first edge of measurement dististyle and the hole wall of bellmouth are contacted, and make the center line of the first measurement dististyle place plane perpendicular to bellmouth, and sounding rod is still perpendicular to the plate face of pcb board, now can read the first degree of depth h1 of measurement dististyle in bellmouth by the table body of depth gauge, then the first measurement dististyle is replaced by the second measurement dististyle, the way of copying the above-mentioned h1 of fathoming, first records the degree of depth h2 of the second measurement dististyle at bellmouth after zeroing again, finally by the geometric relationship between h1, h2, d1, d2 and the angle θ of bellmouth
can obtain the angular dimension of bellmouth.
In an embodiment, described measurement dististyle is fixedly connected with adapter sleeve therein, and measurement dististyle is connected to the bottom of sounding rod removably by this adapter sleeve.
In an embodiment, described adapter sleeve has the interior slotted eye suitable with the bottom of described sounding rod therein, and the central axis of interior slotted eye is perpendicular to measuring dististyle.Thereby, on the one hand, as long as the bottom of sounding rod is inserted in described interior slotted eye, can make to measure dististyle and be connected to securely the bottom of sounding rod; On the other hand, as long as sounding rod is extracted from described interior slotted eye, can make to measure dististyle and disassemble from sounding rod.
In an embodiment, the diameter of described interior slotted eye is 1-10mm therein.This diameter that shows sounding rod also, between 1-10mm, therefore, can make to measure dististyle by sounding rod and enter in bellmouth.
In an embodiment, described measurement dististyle and adapter sleeve are one-body molded therein.
In an embodiment, described table body is dial gauge therein.Thereby, by the measurement of dial gauge, can measure fast and accurately above-mentioned degree of depth h1 and h2.
In an embodiment, described depth gauge also includes pedestal therein, and described table body is fixedly mounted on this pedestal.Thereby, by pedestal fixed support table body, can make to measure accurately and reliably.
Therein in an embodiment, described measurement dististyle is circular egative film, described bellmouth has the first circular open and the second circular open, and the diameter of the first circular open is greater than the diameter of the second circular open, the diameter of described circular egative film is less than the diameter of the first circular open, and is greater than the diameter of the second circular open.Therefore, in the time measuring above-mentioned degree of depth h1 and h2, can realize circular egative film and enter in bellmouth, guarantee that the edge of circular egative film can contact with the hole wall of bellmouth, and then can guarantee that the center line of circular egative film place plane and bellmouth is perpendicular.
In an embodiment, the diameter of described circular egative film is 3mm-15mm therein.Thereby, use described cubing can measure the bellmouth that diameter is greater than 10mm, also can measure the bellmouth that diameter is less than 10mm.
The beneficial effects of the utility model are:
Described cubing can realize to be measured fast and accurately to circuit board bellmouth angle, can not damage to bellmouth its simple in structure, low cost of manufacture.
Brief description of the drawings
Fig. 1 is the structural representation of the cubing of the metering circuit plate bellmouth described in the utility model embodiment.
Fig. 2 is the schematic diagram of the cubing metering circuit plate bellmouth described in the utility model embodiment.
Description of reference numerals:
10, depth gauge, 11, dial gauge, 12, sounding rod, 13, pedestal, 20, adapter sleeve, 30, circular egative film, 40, bellmouth.
Embodiment
Below embodiment of the present utility model is elaborated:
As shown in Figure 1, a kind of cubing of metering circuit plate bellmouth angle, comprise depth gauge 10 and can enter the measurement dististyle of described bellmouth 40, depth gauge 10 comprises table body and sounding rod 12, sounding rod 12 is connected to described table body below, described measurement dististyle is removably connected to the bottom of sounding rod 12, and measure dististyle place plane and sounding rod 12 perpendicular.
Wherein, described measurement dististyle is fixedly connected with adapter sleeve 20, and measurement dististyle is connected to the bottom of sounding rod 12 removably by this adapter sleeve 20.Described adapter sleeve 20 has the interior slotted eye suitable with the bottom of described sounding rod 12, and the central axis of interior slotted eye is perpendicular to measuring dististyle.The diameter of described interior slotted eye is 1-10mm.Described measurement dististyle and adapter sleeve 20 are one-body molded.Described table body is dial gauge 11.Described depth gauge 10 also includes pedestal 13, and described dial gauge 11 is fixedly mounted on this pedestal 13.Described measurement dististyle is circular egative film 30, described bellmouth 40 has the first circular open and the second circular open, and the diameter of the first circular open is greater than the diameter of the second circular open, the diameter of described circular egative film 30 is less than the diameter of the first circular open, and is greater than the diameter of the second circular open.The diameter of described circular egative film 30 is 3mm-15mm, and diameter tolerance is ± 0.05mm-0.15mm.
The present embodiment has the following advantages or principle:
1, while use, first choose the circular egative film 30 of two different-diameter sizes, be designated as respectively the first circular egative film and the second circular egative film, and the diameter of the first circular egative film is designated as d1, the diameter of the second circular egative film is designated as d2, and d1 is less than d2.When measurement, first the first circular egative film is connected to the bottom of sounding rod 12, the bottom surface of the first circular egative film and the plate face of pcb board are contacted, sounding rod 12 is perpendicular to the plate face of pcb board, now depth gauge 10 is returned to zero, then by sounding rod 12, the first circular egative film is inserted in bellmouth 40, the edge of the first circular egative film is contacted with the hole wall of bellmouth 40, and make the center line of the first measurement dististyle place plane perpendicular to bellmouth 40, and sounding rod 12 is still perpendicular to the plate face of pcb board, now can read the first degree of depth h1 of circular egative film in bellmouth 40 by dial gauge 11, then the first circular egative film is replaced by the second circular egative film again, the way of copying the above-mentioned h1 of fathoming, first zeroing records the degree of depth h2 of the second circular egative film at bellmouth 40 again, finally pass through twice depth difference h=h1-h2, the geometric relationship between the poor d=of diameter (d2-d1)/2 and the angle θ of bellmouth
can obtain the angular dimension of bellmouth 40.Measuring principle figure specifically as shown in Figure 2.
2, described adapter sleeve 20 has the interior slotted eye suitable with the bottom of described sounding rod 12, and the central axis of interior slotted eye is perpendicular to measuring dististyle.Thereby, on the one hand, as long as the bottom of sounding rod 12 is inserted in described interior slotted eye, can make to measure dististyle and be connected to securely the bottom of sounding rod 12; On the other hand, as long as sounding rod 12 is extracted from described interior slotted eye, can make to measure dististyle and disassemble from sounding rod 12.
3, the diameter of described interior slotted eye is 1-10mm.This diameter that shows sounding rod 12 also, between 1-10mm, therefore, can make to measure dististyle by sounding rod 12 and enter in bellmouth 40.
4, described table body is dial gauge 11.Thereby, read by the measurement of dial gauge 11, can obtain rapidly and accurately above-mentioned degree of depth h1 and h2.
5, described dial gauge 11 is fixedly mounted on this pedestal 13.Thereby, by pedestal 13 fixed support dial gauges 11, can make to measure accurately and reliably.
6, the diameter of described circular egative film 30 is less than the diameter of the first circular open, and is greater than the diameter of the second circular open.Therefore, in the time measuring above-mentioned degree of depth h1 and h2, can realize circular egative film 30 and enter in bellmouth 40, guarantee that the edge of circular egative film 30 can contact with the hole wall of bellmouth 40, and then can guarantee that the center line of circular egative film 30 place planes and bellmouth 40 is perpendicular.
7, the diameter of described circular egative film 30 is 3mm-15mm.Thereby, use described cubing can measure the bellmouth 40 that diameter is greater than 10mm, also can measure the bellmouth 40 that diameter is less than 10mm.
8, described cubing can be measured fast and accurately to circuit board bellmouth 40 angles, can not damage to bellmouth 40 its simple in structure, low cost of manufacture.
The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (9)
1. the cubing of a metering circuit plate bellmouth angle, it is characterized in that, comprise depth gauge and can enter the measurement dististyle of described bellmouth, depth gauge comprises table body and sounding rod, sounding rod is connected to described table body below, described measurement dististyle is removably connected to the bottom of sounding rod, and measure dististyle place plane and sounding rod perpendicular.
2. the cubing of metering circuit plate bellmouth angle according to claim 1, is characterized in that, described measurement dististyle is fixedly connected with adapter sleeve, and measurement dististyle is connected to the bottom of sounding rod removably by this adapter sleeve.
3. the cubing of metering circuit plate bellmouth angle according to claim 2, is characterized in that, described adapter sleeve has the interior slotted eye suitable with the bottom of described sounding rod, and the central axis of interior slotted eye is perpendicular to measuring dististyle.
4. the cubing of metering circuit plate bellmouth angle according to claim 3, is characterized in that, the diameter of described interior slotted eye is 1-10mm.
5. the cubing of metering circuit plate bellmouth angle according to claim 2, is characterized in that, described measurement dististyle and adapter sleeve are one-body molded.
6. according to the cubing of the metering circuit plate bellmouth angle described in claim 1 to 5 any one, it is characterized in that, described table body is dial gauge.
7. according to the cubing of the metering circuit plate bellmouth angle described in claim 1 to 5 any one, it is characterized in that, described depth gauge also includes pedestal, and described table body is fixedly mounted on this pedestal.
8. according to the cubing of the metering circuit plate bellmouth angle described in claim 1 to 5 any one, it is characterized in that, described measurement dististyle is circular egative film, described bellmouth has the first circular open and the second circular open, and the diameter of the first circular open is greater than the diameter of the second circular open, the diameter of described circular egative film is less than the diameter of the first circular open, and is greater than the diameter of the second circular open.
9. the cubing of metering circuit plate bellmouth angle according to claim 8, is characterized in that, the diameter of described circular egative film is 3mm-1 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775275.3U CN203657717U (en) | 2013-11-28 | 2013-11-28 | Testing fixture for measuring angle of taper hole of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775275.3U CN203657717U (en) | 2013-11-28 | 2013-11-28 | Testing fixture for measuring angle of taper hole of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657717U true CN203657717U (en) | 2014-06-18 |
Family
ID=50924095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320775275.3U Expired - Fee Related CN203657717U (en) | 2013-11-28 | 2013-11-28 | Testing fixture for measuring angle of taper hole of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697423A (en) * | 2015-04-01 | 2015-06-10 | 航天精工股份有限公司 | Measuring gauge for countersink angle and measuring method thereof |
| CN111829418A (en) * | 2020-08-07 | 2020-10-27 | 昆山元明达机电科技有限公司 | A detection device for end piece |
-
2013
- 2013-11-28 CN CN201320775275.3U patent/CN203657717U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697423A (en) * | 2015-04-01 | 2015-06-10 | 航天精工股份有限公司 | Measuring gauge for countersink angle and measuring method thereof |
| CN104697423B (en) * | 2015-04-01 | 2017-07-18 | 航天精工股份有限公司 | The gauge and measuring method of counterbore angle |
| CN111829418A (en) * | 2020-08-07 | 2020-10-27 | 昆山元明达机电科技有限公司 | A detection device for end piece |
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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: 20140618 Termination date: 20211128 |