CN213829292U - PCB board drilling backing plate structure - Google Patents
PCB board drilling backing plate structure Download PDFInfo
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- CN213829292U CN213829292U CN202022849578.8U CN202022849578U CN213829292U CN 213829292 U CN213829292 U CN 213829292U CN 202022849578 U CN202022849578 U CN 202022849578U CN 213829292 U CN213829292 U CN 213829292U
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- pcb board
- drilling
- apron
- plate
- backing plate
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Abstract
The utility model provides a PCB board drilling backing plate structure for supplementary graphite drilling machine drills to the PCB board, including backing plate, aluminum plate and apron, the backing plate setting is in PCB board below, and aluminum plate sets up in PCB board top, and the apron setting adopts the plank in the aluminum plate top, and apron thickness is 1 ~ 5mm, the beneficial effects of the utility model are that: when drilling the PCB, through increasing the one deck apron above aluminum plate, can make aluminum plate closely the pressfitting between PCB board and apron, the drill bit carries out the pre-drilling on the apron earlier, makes the drill bit can not appear cutting edge of a knife or a sword and sawtooth when drilling aluminum plate and PCB board, can not take place the phenomenon that the hole site bursts yet.
Description
Technical Field
The utility model relates to a PCB board drilling equipment field, in particular to PCB board drilling backing plate structure.
Background
In the process of manufacturing the PCB, a plurality of holes with different apertures are generally drilled on the PCB for component insertion holes or conduction. Generally adopt drilling backing plate and aluminum plate as important material of assisting when the drilling of PCB board, when drilling, place the PCB board between backing plate and aluminum plate, in order to improve the quality of drilling, utilize aluminum plate to cover on the PCB board, can play radiating effect, avoid drill bit high temperature to damage the PCB board, can prevent the indentation simultaneously, however, if aluminum plate is too thick, damage the drill bit easily, therefore the thickness of aluminum plate is general all thinner, generally 0.15 ~ 0.2mm, however, because aluminum plate is thinner, when drilling to the PCB board, especially when the drilling diameter is greater than 3.2mm, flash or sawtooth can appear in hole site department, even the hole site bursts, influence the quality of PCB board, consequently, it is necessary to make a backing plate structure, can make the PCB board can not appear flash and sawtooth in the in-process of drilling, also can not appear the phenomenon of bursting.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a PCB board drilling backing plate structure is in order to solve the problem mentioned in the background art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a PCB board drilling backing plate structure for supplementary graphite drilling machine drills to the PCB board, includes backing plate, aluminum plate and apron, and the backing plate setting is in PCB board below, and aluminum plate sets up in PCB board top, and the apron setting is in the aluminum plate top.
To the further description of the present invention: the cover plate is made of wood plates.
To the further description of the present invention: the cover plate is made of epoxy glass cloth.
To the further description of the present invention: the thickness of the cover plate is 1-5 mm.
To the further description of the present invention: the backing plate is made of wood plates.
To the further description of the present invention: the backing plate is made of phenolic aldehyde plates.
To the further description of the present invention: the thickness of the base plate is 1-5 mm.
The utility model has the advantages that: when drilling the PCB, through increasing the one deck apron above aluminum plate, can make aluminum plate closely the pressfitting between PCB board and apron, the drill bit carries out the pre-drilling on the apron earlier, makes the drill bit can not appear cutting edge of a knife or a sword and sawtooth when drilling aluminum plate and PCB board, can not take place the phenomenon that the hole site bursts yet.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
description of reference numerals:
1. a base plate; 2. an aluminum plate; 3. a cover plate; 4. and (7) a PCB board.
Detailed Description
The invention is further illustrated below with reference to the following examples and figures:
the first embodiment is as follows:
as shown in fig. 1: the utility model provides a PCB board drilling backing plate structure, a be used for supplementary graphite drilling machine to drill to PCB board 4, including backing plate 1, aluminum plate 2 and apron 3, backing plate 1 sets up in PCB board 4 below, aluminum plate 2 sets up in PCB board 4 top, apron 3 sets up in aluminum plate 2 top, because aluminum plate 2 is thinner, aluminum plate 2 can be in drilling, play the effect of heat dissipation cooling to the drill bit, prevent that the drill bit high temperature from damaging PCB board 4, set up apron 3 in aluminum plate 2 top, can prevent that the drilling upper surface from producing the flash, sawtooth and hole site burst, prevent simultaneously more effectively that PCB board 4 can not be weigh wounded, set up backing plate 1 in PCB board 4 below, can play the effect of protection workstation in manufacturing process, prevent simultaneously that the drilling lower surface from producing the flash.
In this design, apron 3 adopts the plank, and 3 thickness of apron are 2.5mm, and backing plate 1 adopts the plank, and 1 thickness of backing plate is 2.5mm, and the plank is a common material, and the low price, it is easy to obtain, and the hardness of plank is not high simultaneously, and the difficult wearing and tearing of drill bit improve the life of drill bit in drilling, and the thickness of apron 3 and backing plate 1 adopts 2.5 mm. On the one hand, the strength can meet the production requirement, and on the other hand, the drilling stroke and the material cost of the drill bit are reduced.
The working principle of the embodiment is as follows:
when drilling PCB board 4, prevent backing plate 1 on the workstation, PCB board 4 is laid in proper order to backing plate 1 top, aluminum plate 2 and apron 3, the drill bit of graphite drilling machine is followed from last to drilling from bottom to bottom, loop through apron 3, aluminum plate 2, PCB board 4 and backing plate 1, thereby accomplish the drilling process to PCB board 4, make drilling on PCB board 4 simultaneously have no flash, sawtooth and fracture, backing plate 1 can use repeatedly many times, apron 3 is through turn-over or rotatory, make the position of treating drilling avoid existing hole site, also can used repeatedly many times.
Example two:
this embodiment is similar to the embodiment, and the difference is:
the apron 3 of this embodiment adopts the epoxy glass cloth board, and backing plate 1 adopts the phenolic aldehyde board, and the apron 3 adopts the purpose that the epoxy glass cloth board is effectual in heat transfer, can dispel the heat to the drill bit effectively, and the backing plate 1 adopts the purpose that the phenolic aldehyde board is cheap, matter is light and heat transfer effect is good.
The working principle of this embodiment is the same as that of the first embodiment, and will not be described herein again.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a PCB board drilling backing plate structure for supplementary graphite drilling machine drills the PCB board, its characterized in that: including backing plate, aluminum plate and apron, the backing plate sets up in PCB board below, aluminum plate sets up in PCB board top, the apron sets up aluminum plate top.
2. The PCB board drilling pad structure of claim 1, wherein: the cover plate is made of a wood plate.
3. The PCB board drilling pad structure of claim 1, wherein: the cover plate is made of epoxy glass cloth.
4. The PCB board drilling pad structure of claim 1, wherein: the thickness of the cover plate is 1-5 mm.
5. The PCB board drilling pad structure of claim 1, wherein: the backing plate is made of a wood plate.
6. The PCB board drilling pad structure of claim 1, wherein: the backing plate is a phenolic aldehyde plate.
7. The PCB board drilling pad structure of claim 1, wherein: the thickness of the base plate is 1-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022849578.8U CN213829292U (en) | 2020-12-02 | 2020-12-02 | PCB board drilling backing plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022849578.8U CN213829292U (en) | 2020-12-02 | 2020-12-02 | PCB board drilling backing plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213829292U true CN213829292U (en) | 2021-07-30 |
Family
ID=76995404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022849578.8U Active CN213829292U (en) | 2020-12-02 | 2020-12-02 | PCB board drilling backing plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213829292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114206004A (en) * | 2021-11-18 | 2022-03-18 | 昆山万源通电子科技股份有限公司 | CEM-1 plate drilling burr improving process |
| CN114340213A (en) * | 2021-12-29 | 2022-04-12 | 江苏苏杭电子有限公司 | Drilling method for aluminum sheet of silk-screen printing plate for PCB (printed Circuit Board) solder-resisting plug hole |
-
2020
- 2020-12-02 CN CN202022849578.8U patent/CN213829292U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114206004A (en) * | 2021-11-18 | 2022-03-18 | 昆山万源通电子科技股份有限公司 | CEM-1 plate drilling burr improving process |
| CN114340213A (en) * | 2021-12-29 | 2022-04-12 | 江苏苏杭电子有限公司 | Drilling method for aluminum sheet of silk-screen printing plate for PCB (printed Circuit Board) solder-resisting plug hole |
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