CN206650922U - X ray target practice pad - Google Patents
X ray target practice pad Download PDFInfo
- Publication number
- CN206650922U CN206650922U CN201621211390.8U CN201621211390U CN206650922U CN 206650922 U CN206650922 U CN 206650922U CN 201621211390 U CN201621211390 U CN 201621211390U CN 206650922 U CN206650922 U CN 206650922U
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- cylinder
- thickness
- diameter
- ray target
- target practice
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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.)
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Abstract
The utility model provides a kind of X ray target practice pad, including upper prepreg and lower prepreg, the upper prepreg includes integrally formed cylinder A and cylinder B, the lower prepreg includes integrally formed cylinder C and cylinder D, wherein, the cylinder B and cylinder C and cylinder D is pressed integrally by way of hot pressing, and the diameter of the cylinder A is less than the diameter of the cylinder B, and the diameter of the cylinder C is less than the diameter of the cylinder D.The problem of drill hole of FR4 plates can be avoided to produce burr and burr in the utility model, there is the characteristics of simple in construction, cost is low.
Description
Technical field
Circuit board manufacturing area is the utility model is related to, more particularly to a kind of X ray target practice pad.
Background technology
In the prior art, when being drilled using X ray target-shooting machine to FR4 circuit boards, the drill hole of FR4 plates is also easy to produce
The problem of burr and burr.
Utility model content
The utility model provides a kind of X ray target practice pad, to solve to use X ray target-shooting machine pair in the prior art
When FR4 circuit boards are drilled, the problem of drill hole of FR4 plates is also easy to produce burr and burr.
To solve the above problems, as one side of the present utility model, there is provided a kind of X ray target practice pad, including
Upper prepreg and lower prepreg, the upper prepreg include integrally formed cylinder A and cylinder B, the lower semi-solid preparation
Piece includes integrally formed cylinder C and cylinder D, wherein, the cylinder B and the cylinder C and cylinder the D pressure by way of hot pressing
Integrator, the diameter of the cylinder A are less than the diameter of the cylinder B, and the diameter of the cylinder C is straight less than the cylinder D
Footpath.
Preferably, the thickness of the upper prepreg is 2 millimeters.
Preferably, the thickness of the lower prepreg is 3 millimeters.
Preferably, the thickness of the cylinder A is 1 millimeter, and the thickness of the cylinder B is 1 millimeter.
Preferably, the thickness of the cylinder C is 2 millimeters, and the thickness of the cylinder D is 1 millimeter.
Preferably, the thickness of the cylinder A is less than or equal to the thickness of the cylinder C.
Preferably, a diameter of 15.96 millimeters of the cylinder B and cylinder D.
The problem of drill hole of FR4 plates can be avoided to produce burr and burr in the utility model, there is simple in construction, cost
The characteristics of low.
Brief description of the drawings
Fig. 1 schematically shows the structural representation of prepreg；
Fig. 2 schematically shows the structural representation of lower prepreg.
Reference in figure：1st, cylinder A；2nd, cylinder B；3rd, cylinder C；4th, cylinder D.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
As depicted in figs. 1 and 2, the X ray target practice pad in the utility model includes upper prepreg and lower prepreg,
The upper prepreg includes integrally formed cylinder A1 and cylinder B2, and the lower prepreg includes integrally formed cylinder C3
With cylinder D4, wherein, the cylinder B2 and the cylinder C3 and cylinder D4 are pressed integrally by way of hot pressing, the cylinder
A1 diameter is less than the diameter of the cylinder B2, and the diameter of the cylinder C3 is less than the diameter of the cylinder D4.
In use, the utility model to be placed in the underface of the brill nozzle of X ray target-shooting machine, during punching, bore nozzle and just beat
Centre of the present utility model, after brill nozzle has drilled through FR4 plates, then pierce in the utility model, therefore the drill hole of FR4 plates can be avoided
The problem of producing burr and burr, there is the characteristics of simple in construction, cost is low.
In one embodiment it is preferred that the thickness of the upper prepreg is 2 millimeters；Preferably, the lower semi-solid preparation
The thickness of piece is 3 millimeters.
In one embodiment it is preferred that the thickness of the cylinder A1 is 1 millimeter, the thickness of the cylinder B2 is 1 milli
Rice；Preferably, the thickness of the cylinder C3 is 2 millimeters, and the thickness of the cylinder D4 is 1 millimeter.
In one embodiment it is preferred that the thickness of the cylinder A1 is less than or equal to the thickness of the cylinder C3.
In one embodiment it is preferred that a diameter of 15.96 millimeters of the cylinder B2 and cylinder D4.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (7)
- A kind of 1. X ray target practice pad, it is characterised in that including upper prepreg and lower prepreg, the upper prepreg Including integrally formed cylinder A (1) and cylinder B (2), the lower prepreg includes integrally formed cylinder C (3) and cylinder D (4), wherein, the cylinder B (2) is pressed integrally with the cylinder C (3) and cylinder D (4) by way of hot pressing, the post Body A (1) diameter is less than the diameter of the cylinder B (2), and the diameter of the cylinder C (3) is less than the diameter of the cylinder D (4).
- 2. X ray target practice pad according to claim 1, it is characterised in that the thickness of the upper prepreg is 2 millis Rice.
- 3. X ray target practice pad according to claim 1, it is characterised in that the thickness of the lower prepreg is 3 millis Rice.
- 4. X ray target practice pad according to claim 1, it is characterised in that the thickness of the cylinder A (1) is 1 millimeter, The thickness of the cylinder B (2) is 1 millimeter.
- 5. X ray target practice pad according to claim 1, it is characterised in that the thickness of the cylinder C (3) is 2 millimeters, The thickness of the cylinder D (4) is 1 millimeter.
- 6. X ray target practice pad according to claim 1, it is characterised in that the thickness of the cylinder A (1) is less than or waited In the thickness of the cylinder C (3).
- 7. X ray target practice pad according to claim 1, it is characterised in that the cylinder B (2) and the cylinder D (4) A diameter of 15.96 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211390.8U CN206650922U (en) | 2016-11-09 | 2016-11-09 | X ray target practice pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211390.8U CN206650922U (en) | 2016-11-09 | 2016-11-09 | X ray target practice pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206650922U true CN206650922U (en) | 2017-11-17 |
Family
ID=60283054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621211390.8U Active CN206650922U (en) | 2016-11-09 | 2016-11-09 | X ray target practice pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206650922U (en) |
-
2016
- 2016-11-09 CN CN201621211390.8U patent/CN206650922U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |