CN210389469U - Cooling dust removal pressure foot for drilling of PCB - Google Patents
Cooling dust removal pressure foot for drilling of PCB Download PDFInfo
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- CN210389469U CN210389469U CN201920770452.6U CN201920770452U CN210389469U CN 210389469 U CN210389469 U CN 210389469U CN 201920770452 U CN201920770452 U CN 201920770452U CN 210389469 U CN210389469 U CN 210389469U
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- pressure foot
- safety cover
- drilling
- foot base
- cold air
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Abstract
The utility model provides a cooling dust removal pressure foot for PCB board drilling, which comprises a cold air protective cover, a pressure foot base, a cold air duct and a dust absorption duct, wherein the cold air protective cover is fixed at the upper end of the pressure foot base and extends to the inside of the pressure foot base, the pressure foot base is communicated with the cold air protective cover, a cold air pipe is fixed at one side of the cold air protective cover and is communicated with the cold air protective cover, the dust absorption duct is fixed at one side of the pressure foot base and is communicated with the pressure foot base, a drilling hole is arranged on the lower surface of the pressure foot base, the drilling hole is communicated with the dust absorption duct, the cooling pressure foot for PCB board drilling guides cold air into the cold air protective cover through the cold air duct, thereby not only cooling a drill bit in the drilling process, reducing the heat generated in the drilling process, but also discharging cutting waste materials on the drill bit in time, and then can effectual improvement hole quality, have high quality and high security advantage.
Description
Technical Field
The utility model relates to a pressure foot field, in particular to cooling dust removal pressure foot for drilling of PCB board.
Background
In the processing process of the PCB, high temperature generated by drilling produces certain damage to the PCB. In addition, the requirement of the processing of the PCB on the holes is high, and high-temperature cutting can cause various hole quality problems such as hole roughness, orifice burrs, in-hole drilling dirt and the like, which seriously affect the use of the board in high-frequency signal transmission, finally reduce the reliability and stability of the product, cause the problems of high board rejection rate, high processing cost and the like, and thus, a high-efficiency method needs to be researched to improve the processing quality of the holes of the PCB.
At present, in order to improve the processing quality of PCB holes, the general direction is to reduce the cutting temperature and reduce the damage of high temperature to the plate, and the cooling gas such as cold air, liquid nitrogen, carbon dioxide and the like is usually added to a drill bit during processing. Through the method, the hole machining quality of the PCB can be improved, but in actual operation, the traditional pressure foot cannot meet the requirements of machining and cooling at the same time in a new machining mode.
Therefore, there is a need for a high quality and high safety pressure foot to meet the operational requirements of the cooling process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the weak point among the prior art and the cooling dust removal pressure foot for drilling of PCB board that provides, this a cooling pressure foot for drilling of PCB board passes through the cold wind pipe and channels into cold wind safety cover with cold wind in, not only can cool down the in-process drill bit of drilling, reduce the heat that the drilling in-process produced, and can also in time discharge the cutting waste material on the drill bit, simultaneously through the cooperation of dust absorption pipe with pressure foot base, can effectually with the dust and the waste material discharge pressure foot that the drilling in-process produced outside, and then can effectual improvement hole quality, high quality and high security advantage have.
The embodiment of the utility model provides a cooling dust removal pressure foot for drilling of PCB board, including cold wind safety cover, pressure foot base, cold wind pipe, dust absorption pipe, the cold wind safety cover is fixed in inside pressure foot base upper end just extends to pressure foot base, pressure foot base with cold wind safety cover intercommunication, the cold wind pipe is fixed in one side of cold wind safety cover and with cold wind safety cover intercommunication, the dust absorption pipe is fixed in one side of pressure foot base and with pressure foot base intercommunication, the pressure foot base lower surface has been seted up and has been bored the pinhole, bore the pinhole with dust absorption pipe intercommunication.
Further, the cold wind safety cover is the annular setting, the cold wind safety cover is including last safety cover and lower safety cover, it is fixed in to go up the safety cover down safety cover upper end and with safety cover intercommunication down, it is greater than to go up the safety cover external diameter down the safety cover external diameter, go up the outer wall of safety cover with form 90 contained angles between the tail end of safety cover down.
Furthermore, the lower protective cover is positioned in the pressure foot base and a gap is arranged between the lower protective cover and the inner wall of the pressure foot base.
Furthermore, the height of the lower protection cover is smaller than the height of the inner wall of the pressure foot base, and the outer diameter of the lower protection cover is smaller than the inner diameter of the pressure foot base.
Further, the dust suction duct is positioned at the lower end of the cold air duct.
Furthermore, the central line of the cold air protection cover coincides with the central line of the pressure foot base.
Furthermore, the drilling hole is located in the center of the pressure foot base, and the central line of the drilling hole is respectively overlapped with the central lines of the cold air protection cover and the pressure foot base.
Further, an included angle α is formed between the central line of the cold air duct and the central line of the cold air protection cover, and the included angle α ranges from 90 degrees to 180 degrees.
Furthermore, an included angle β is formed between the central line of the dust suction conduit and the central line of the pressure foot base, and the included angle β ranges from 0 degree to 90 degrees.
Furthermore, be provided with on the cold wind protection cover with cold wind protection cover integrated into one piece's a plurality of fixed ear seats, fixed ear seat inside be provided with the fixing bolt of fixed ear seat looks adaptation.
Compared with the prior art, the utility model has the advantages that: owing to be provided with the cold wind safety cover, pressure foot base, cold wind pipe and dust absorption pipe, through the cold wind safety cover, pressure foot base, cooperation between four of cold wind pipe and dust absorption pipe, make the cold wind pipe with cold wind leading-in to the cold wind safety cover in, and not only can cool down the in-process drill bit of drilling through cold wind, reduce the heat that the drilling in-process produced, and can also in time discharge the cutting waste material on the drill bit, promote the waste material to discharge, simultaneously through the cooperation of dust absorption pipe and pressure foot base, can effectually discharge outside the pressure foot with dust and the waste material that the drilling in-process produced, and then can effectual improvement hole quality, high quality and high security advantage have.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a cooling dust removal pressure foot for PCB board drilling of the present invention.
Fig. 2 is a sectional view of the cooling dust removal pressure foot for PCB board drilling of the present invention.
Fig. 3 is a sectional view of the cooling and dust-removing pressure foot cooling and air-blowing protection cover for PCB board drilling of the present invention.
Fig. 4 is a cross-sectional view of the pressure foot base in the cooling dust removal pressure foot of the utility model for drilling holes on the PCB board.
The figure includes:
the device comprises a cold air protection cover 1, an upper protection cover 11, a lower protection cover 12, a pressure foot base 2, a cold air duct 3, a dust absorption duct 4, a drilling needle hole 5, a fixing lug seat 6 and a fixing bolt 7.
Detailed Description
The invention is further described with reference to the following examples.
As shown in fig. 1-2, a cooling dust removal pressure foot for drilling holes in a PCB comprises a cold air protection cover 1, a pressure foot base 2, a cold air conduit 3 and a dust absorption conduit 4, wherein the cold air protection cover 1 is welded and fixed on the upper end of the pressure foot base 2 and extends into the pressure foot base 2, the pressure foot base 2 is communicated with the cold air protection cover 1, the cold air conduit is welded and fixed on one side of the cold air protection cover 1 and is communicated with the cold air protection cover 1, the dust absorption conduit 4 is welded and fixed on one side of the pressure foot base 2 and is communicated with the pressure foot base 2, a drilling hole 5 is formed in the lower surface of the pressure foot base 2, the drilling hole is communicated with the dust absorption conduit, cold air can be introduced into the cold air protection cover 1 through the cold air conduit 3, and a drill bit can be cooled through cold air in the drilling process, reduce the heat that the drilling in-process produced, but also can in time discharge the cutting waste material on the drill bit, fall and design annular safety cover device around the drill bit, promote the waste material to discharge, simultaneously through the cooperation of dust absorption pipe 4 and pressure foot base 2, can effectually discharge the dust and the waste material that the in-process of will drilling produced outside the pressure foot, and then can effectual improvement hole quality, have high quality and high security advantage.
As shown in fig. 2, in a preferred embodiment, the cold wind safety cover 1 is the annular setting, the cold wind safety cover 1 is including last safety cover 11 and lower safety cover 12, go up the safety cover 11 and be fixed in lower safety cover 12 upper end and with lower safety cover 12 intercommunication, go up the safety cover 11 with set up for integrated into one piece between the safety cover 12 down, it is greater than to go up the safety cover 11 external diameter down safety cover 12 external diameter, go up the safety cover 11 the outer wall with form 90 contained angles between the tail end of lower safety cover 12, can make cold wind form the swirl air current after entering into cold wind safety cover 1, not only can in time discharge the cutting waste material on the drill bit, the whirlwind that the swirl air current produced has also further improved the cool time simultaneously, improves the cold wind utilization ratio.
As shown in fig. 2, in a preferred embodiment, the lower protection cover 12 is located inside the pressure foot base 2 and is provided with a gap with the inner wall of the pressure foot base 2, further, the height of the lower protection cover 12 is smaller than the height of the inner wall of the pressure foot base 2, the outer diameter of the lower protection cover 12 is smaller than the inner diameter of the pressure foot base 2, and due to the fact that a certain gap exists between the lower protection cover 12 and the pressure foot base 2, the dust suction pipe 4 is communicated with the drilling needle hole 5, dust and waste materials generated in the drilling process can be discharged out of the pressure foot through the dust suction pipe 4, meanwhile, the side wall of the cold air protection cover 1 can also separate cold air and dust in the cold air protection cover 1, and work efficiency is improved.
As shown in fig. 2, in a preferred embodiment, the dust suction duct 4 is located at the lower end of the cold air duct 3, and further, the direction of the dust suction duct 1 is consistent with the direction of the swirling cyclone inside the cold air protection cover 1, so that the dust suction efficiency of the dust suction duct 1 can be effectively improved.
As shown in fig. 2, in a preferred embodiment, the central line of the cold air protection cover 1 coincides with the central line of the pressure foot base 2, so that the cold air protection cover 1 and the pressure foot base 2 can be ensured to be located on the same vertical line, and further, the drilling hole 5 is located in the center of the pressure foot base 2, the central line of the drilling hole 5 coincides with the central lines of the cold air protection cover 1 and the pressure foot base 2, so that the drilling hole 5, the cold air protection cover 1 and the pressure foot base 2 can be ensured to be located on the same vertical line, and the accuracy of the pressure foot in the using process can be effectively improved.
As shown in fig. 3, in a preferred embodiment, an included angle α is formed between a center line of the cold air duct 3 and a center line of the cold air protection cover 1, the included angle α ranges from 90 ° to 180 °, so that an air inlet angle in the cold air duct 3 is optimal, and an air inlet effect is good.
As shown in fig. 4, in a preferred embodiment, an included angle β is formed between the central line of the dust suction duct 4 and the central line of the pressure foot base 2, and the included angle β ranges from 0 ° to 90 °, so that the dust suction angle in the dust suction duct 4 is optimal, and the dust suction effect is good.
As shown in fig. 3, in a preferred embodiment, the cold air protection cover 1 is provided with a plurality of fixing lug seats 6 integrally formed with the cold air protection cover 1, the fixing bolts 7 adapted to the fixing lug seats 6 are arranged inside the fixing lug seats 6, and the pressure foot can be effectively fixed through connection and cooperation of the fixing lug seats 6 and the fixing bolts 7, so that the pressure foot is prevented from deviating in the using process, and the stability of the pressure foot is improved.
As shown in fig. 1, in a preferred embodiment, the surface of the pressure foot is coated with a stainless steel coating, so that the surface of the pressure foot is prevented from being oxidized to generate rusty spots during use, and the service life of the pressure foot is prolonged.
The cooling dust removal pressure foot for drilling the PCB board of the embodiment has the following use method:
firstly, cold air is introduced into the cold air guide pipe 3, so that cold air vortex is formed in the cold air protective cover 1 by the cold air, the drilling needle of the PCB is ensured to be gradually cooled under the action of the cold air vortex in the drilling process, the PCB is drilled after the drilling needle is cooled, meanwhile, the dust suction guide pipe 4 is opened, so that dust in the drilling process of the PCB can be discharged along the dust suction guide pipe 4, and finally, after the drilling is finished, the cold air guide pipe 3 is firstly closed, and then the dust suction guide pipe 4 is closed.
Compared with the prior art, the utility model has the advantages that: owing to be provided with the cold wind safety cover, pressure foot base, cold wind pipe and dust absorption pipe, through the cold wind safety cover, pressure foot base, cooperation between four of cold wind pipe and dust absorption pipe, make the cold wind pipe with cold wind leading-in to the cold wind safety cover in, and not only can cool down the in-process drill bit of drilling through cold wind, reduce the heat that the drilling in-process produced, and can also in time discharge the cutting waste material on the drill bit, promote the waste material to discharge, simultaneously through the cooperation of dust absorption pipe and pressure foot base, can effectually discharge outside the pressure foot with dust and the waste material that the drilling in-process produced, and then can effectual improvement hole quality, high quality and high security advantage have.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a cooling dust removal pressure foot for drilling of PCB board which characterized in that: including cold wind safety cover, pressure foot base, cold wind pipe, dust absorption pipe, the cold wind safety cover is fixed in pressure foot base upper end just extends to pressure foot base inside, pressure foot base with cold wind safety cover intercommunication, the cold wind pipe is fixed in one side of cold wind safety cover and with cold wind safety cover intercommunication, the dust absorption pipe is fixed in one side of pressure foot base and with pressure foot base intercommunication, the pressure foot base lower surface has been seted up and has been bored the pinhole, bore the pinhole with dust absorption pipe intercommunication.
2. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 1, wherein: the cold wind safety cover is the annular setting, the cold wind safety cover is including last safety cover and lower safety cover, it is fixed in to go up the safety cover down safety cover upper end and with safety cover intercommunication down, it is greater than to go up the safety cover external diameter down the safety cover external diameter, go up the outer wall of safety cover with form 90 contained angles between the tail end of safety cover down.
3. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 2, wherein: the lower protective cover is positioned in the pressure foot base and a gap is arranged between the inner wall of the pressure foot base.
4. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 2, wherein: the height of lower safety cover is less than the inner wall height of pressure foot base, the external diameter of lower safety cover is less than the internal diameter of pressure foot base.
5. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 1, wherein: the dust absorption guide pipe is positioned at the lower end of the cold air guide pipe.
6. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 1, wherein: the central line of the cold air protection cover coincides with the central line of the pressure foot base.
7. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 1, wherein: the drilling needle hole is located in the center of the pressure foot base, and the central line of the drilling needle hole is respectively overlapped with the central lines of the cold air protection cover and the pressure foot base.
8. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 1, wherein an included angle α is formed between a central line of the cold air duct and a central line of the cold air protection cover, and the included angle α ranges from 90 ° to 180 °.
9. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 1, wherein an included angle β is formed between the central line of the dust suction duct and the central line of the pressure foot base, and the included angle β ranges from 0 ° to 90 °.
10. The cooling dust removal pressure foot for drilling the PCB as claimed in claim 1, wherein: be provided with on the cold wind safety cover with a plurality of fixed ear seats of cold wind safety cover integrated into one piece, fixed ear seat inside be provided with the fixing bolt of fixed ear seat looks adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770452.6U CN210389469U (en) | 2019-05-27 | 2019-05-27 | Cooling dust removal pressure foot for drilling of PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770452.6U CN210389469U (en) | 2019-05-27 | 2019-05-27 | Cooling dust removal pressure foot for drilling of PCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210389469U true CN210389469U (en) | 2020-04-24 |
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ID=70347125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920770452.6U Active CN210389469U (en) | 2019-05-27 | 2019-05-27 | Cooling dust removal pressure foot for drilling of PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210389469U (en) |
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2019
- 2019-05-27 CN CN201920770452.6U patent/CN210389469U/en active Active
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