CN106944638A - A kind of PCB aperture processing method of control cutting heat - Google Patents
A kind of PCB aperture processing method of control cutting heat Download PDFInfo
- Publication number
- CN106944638A CN106944638A CN201710257966.7A CN201710257966A CN106944638A CN 106944638 A CN106944638 A CN 106944638A CN 201710257966 A CN201710257966 A CN 201710257966A CN 106944638 A CN106944638 A CN 106944638A
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- China
- Prior art keywords
- processing
- hole
- drilling
- pcb board
- drill bit
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
Abstract
The present invention proposes a kind of PCB aperture processing method of new control cutting heat, how the present invention primarily directed to current printed circuit board effectively controls the key technology of cutting heat if drilling, it is mainly used in drill diameter and the larger hole of hole depth, and applied to processing that a series of apertures, hole depth be identical on circuit board and the hole of concentration is compared in distribution.The present invention be it is a kind of combine batch (-type)/great-jump-forward bore process, can realize that a drilling depth is controllable, bore path may be selected, and configure CCD positioning and cold wind auxiliary is processed.
Description
Technical field
The present invention relates to printed circuit board processing technique field, and in particular to a kind of PCB aperture processing side of control cutting heat
Method.
Background technology
As information industry is fast changing, the printed circuit board of the basic spare part of electronics and information industry is used as（PCB）Matter
Amount requires also increasingly to improve.Hole is PCB important component, and bore process turns into an important step of PCB manufacturing process.
In recent years, PCB manufactures are presented high-frequency high-speed, frivolous small-sized, high-density multi-layeredization trend, PCB is had complex structure, hard
The features such as degree is high, sheet metal thickness is big, internal layer coefficient of friction is big, brings challenges to PCB Drilling operations.
PCB boring procedures are frequently accompanied by the generation of drilling heat, and drilling heat is too high to have larger shadow to sheet material and cutter
Ring.For sheet material, drilling heat is too high to be easily caused sheet deformation, influences hole machined precision.Such as metal base printed circuit board
（MPCB）, wherein the heat that thick copper base processing is produced is more, precision and internal surface of hole quality to workpiece are impacted, in addition aluminium
Basal plate heated easily softens, and produces a large amount of burrs, influences hole quality.For cutter, the incoming cutter of drilling heat makes cutter temperature
Degree rises, the chip hydraulic performance decline such as hardness, intensity, so as to increase tool wear；Chip is easily caused to be glued in addition, drilling temperature is too high
Knife phenomenon, so that blocking chip area causes cracking of cutter.
In the prior art in order to solve PCB heat dissipation problems, drilling cover plate typically uses aluminium flake, utilizes the good thermal conductivity of aluminium
Can, be conducive to distributing the heat of PCB boring procedures.But the heat that this method can only solve PCB surface distributes problem, and
It is not enough to solve to produce amount of heat in hole.
There are wet boring and water-cooled in the prior art, although the radiating effect of water-cooled is fine, but for some spies
Different sheet material, water-cooled is likely to affect PCB electric conductivity and the copper facing effect in following hole.
How effectively to control the chip heat produced in PCB aperture process turns into the key for ensureing hole quality and cutter life
Factor.
The content of the invention
In view of this, to solve the technical problem being previously mentioned in background technology, the present invention proposes a kind of new control cutting
The PCB aperture processing method of heat, how the present invention primarily directed to current printed circuit board effectively controls the key of cutting heat if drilling
Technology, is mainly used in drill diameter and the larger hole of hole depth, and is applied to process a series of apertures, hole depth phase on circuit board
The hole of concentration is compared in same and distribution.The present invention is a kind of with reference to batch (-type)/great-jump-forward bore process, and can realize once drill deeply
Degree it is controllable, bore path may be selected, and configure CCD positioning and cold wind auxiliary be processed.
The technical scheme is that：It is a kind of control cutting heat pcb board hole forming method, it is characterised in that including with
Lower specific steps：
S1. the quantity in processing hole needed for setting on same pcb board, the drilling depth in processing hole of pcb plates is set as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.3h- in described hole
0.5h drilling depth；Particularly, described first processing hole can be any one of the processing hole described in S1.
S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in described hole
Drilling goes out 0.3h-0.5h drilling depth；Particularly, described next processing hole is closest to the hole in a processing hole
Position.
S4. S3 manufacturing procedure is repeated, until completing the first round drilling processing in whole processing holes set in S1；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.1h- in described hole
0.3h drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.1h-0.3h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
Particularly, in one embodiment, next processing hole described in S3, S5 is to have been completed closest to previous step
The processing hole of processing.
Particularly, in one embodiment, next processing Kong Weiyu previous steps described in S3, S5 have completed processing
Processing hole have one processing hole interval processing hole.
Particularly, in one embodiment, next processing Kong Weiyu previous steps described in S3, S5 have completed processing
Processing hole have two processing hole interval processing holes.
Further, the quantity in the processing hole set in S1 is 3-10.Inventor verifies discovery by substantial amounts of research,
Under the processing hole number set herein, the efficiency of processing with maximized optimization processing effect, can be improved.
Further, CCD position indicators are installed on the main shaft of the drill bit.The CCD position indicators are mainly used in determining to add
The position in work hole, is operated with the station for ensureing the reachable setting of main shaft.The CCD position indicators can pass through any prior art
Realize.
Further, the present invention is persistently entered using cooling air unit also by the way of cold wind secondary process to drill bit with hole
Row spray cooling, cold flow is 0.3-0.5m3/min.
Further, the form of the cooling air unit processing includes the mode that jet or jet are combined with air-breathing.Using this
Mode, can blow away or siphon away the chip on processing hole and periphery, it is ensured that the precision of processing and the stability of performance.
Further, the cooling air unit is arranged on main shaft, is processed with main axle moving.
Further, the cooling air unit is self-contained unit, and individually control mobile route and cooled region are processed.
The present invention makes cutter have certain residence time in atmosphere, and coordinate in the process of great-jump-forward drilling
Cold wind injection is adequately cooled cutter, the heat that cutter drilling process is produced can be enable to scatter and disappear, it is ensured that cutter is cut
Consider performance and life-span to be worth doing；Cutter is reduced because thermal expansion produces excessive friction.
Wherein, cold wind auxiliary drilling, device to hole carries out cold wind injection, reduces the temperature of dielectric layer resin, it is possible to reduce viscous knife
Phenomenon, enables drilling cuttings smoothly to discharge；Additionally chip removal can be assisted with chip in cleaning eye；The main phase of great-jump-forward bore process
When the heat produced in subsection hole-drilling, the cutting output and hole for reducing each working angles, advantageously reduce ailhead in hole, reduce hole
Position skew ensures hole quality.
The beneficial effects of the present invention are：
1. drill bit is in each drilling process, from feed to withdrawing, temperature is first steeply risen and then drilling completes withdrawing, and temperature is opened
Begin to decline, heat disperses from temperature highest apex point to the low surrounding environment of temperature, progressively drops to room temperature.If drill bit continues
Drilling overlong time, heat has little time to disperse, then the heat of drill bit is added up in original amount of residual heat, with brill
Kong Yue is more, and heat accumulative is bigger, causes the hardness strength and drilling performance of drill bit to decline, and makes hole because thermal expansion occurs for drill bit
Interior friction increase, and produce horn-like hole as drilling depth increases.Drilled using great-jump-forward, drill bit can be made in switching hole
The aerial time lengthening of exposure during drilling, and cooled down plus cold wind injection, drill bit can be made to obtain fully
Cooling；
2. the present invention is used in combination with cold wind injection, device to hole carries out cold wind injection.So advantage has：（1）The fracture pole of chip
Limit has certain relation with temperature, and every kind of material has a critical temperature value, can rise higher than this material temperature plasticity, cut
Difficulty raising is cut, so being that material temperature is conducive to cutting less than critical temperature value, is conducive to improving while reducing material temperature
The fragility of material, reduces viscous knife phenomenon（Ensure that chip removal is unimpeded）With the surface quality in guarantee hole；（2）Cold wind is ejected through impact
Residual chip in hole, plays clearing function.
3. the present invention positions miscellaneous function using CCD, hole position precision may further ensure that.
Brief description of the drawings
Fig. 1 is embodiment application schematic diagram of the invention；
Fig. 2 is embodiment application schematic diagram of the invention；
Fig. 3 is embodiment application schematic diagram of the invention.
Embodiment
Technical scheme is clearly and completely described below in conjunction with embodiment, it is clear that described reality
It is only a part of embodiment of the invention to apply example, rather than whole embodiments.
Embodiment 1
A kind of PCB aperture processing method of control cutting heat, including step in detail below：
S1. position, be processed the positioning hole of place needs on the plate of processing first, then beaten on the bakelite plate of drilling machine
Upper PIN nails；Backing plate 5, the pcb board 4 for needing processing, cover plate 3 are put into preparation drilling successively；
S2. drill bit periphery is provided with cooling air unit, and cooling air unit is provided with first jet 1 and second nozzle 2, and first jet 1 is responsible for
Cold wind injection is carried out to drill bit 6；Second nozzle 2 is responsible for cooling down processing hole；
S3. the process of jumping characteristic drilling is carried out to pcb board：（1）The drilling of certain depth is first carried out to the first processing hole 7；（2）So
Drill bit is moved to progress drilling at the position of the second processing hole 8, the depth of drilling to the first processing hole 7 afterwards；（3）Then drill bit is moved to
First processes the position drilling of hole 7 to deeper position；（4）Repeat（1）、（2）With（3）Until completing first processes hole 7 and second
Process the processing in hole 8；
Processing mode in the present embodiment is the progress that the first processing hole 7 and second consistent to two apertures, hole depth processes hole 8
Great-jump-forward drilling, the present invention can be extended to three holes, great-jump-forward drillings more than four holes；
First jet 1 and second nozzle 2 can carry out cold wind injection to processing hole with drill bit always in drilling process.
Positioner：CCD position indicators are installed on drill press spindle（Do not mark）.In boring procedure, after sheet material is fixed,
The machined pore size of automatic Picking and position are scanned by CCD, are compared with processed file, error value back is returned into system
Automatically compensate and correct, then perform the processed file after compensating approach.The CCD position indicators can pass through any prior art
Realize.
Embodiment 2
A kind of PCB aperture processing method of control cutting heat, including step in detail below：
S1. the quantity in processing hole needed for setting on same pcb board, the drilling depth in processing hole of pcb plates is set as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.35h in described hole
Drilling depth；Particularly, described first processing hole can be any one of the processing hole described in S1.
S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in described hole
Drilling goes out 0.355h drilling depth；Particularly, described next processing hole is closest to the hole position in a processing hole.
S4. S3 manufacturing procedure is repeated, until completing the first round drilling processing in whole processing holes set in S1；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.15h in described hole
Drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.15h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
Particularly, in a kind of processing mode of the present embodiment, next processing hole described in S3, S5 is closest to upper
One step has completed the processing hole of processing.
Particularly, in a kind of processing mode of the present embodiment, next processing Kong Weiyu previous steps described in S3, S5 are
Completing the processing hole of processing has the processing hole at a processing hole interval.
Particularly, in a kind of processing mode of the present embodiment, next processing Kong Weiyu previous steps described in S3, S5
Having completed the processing hole of processing has the processing hole at two processing hole intervals.
Further, the quantity in the processing hole set in S1 is 7.Inventor verifies discovery by substantial amounts of research,
Under the processing hole number of this setting, the efficiency of processing with maximized optimization processing effect, can be improved.
Further, CCD position indicators are installed on the main shaft of the drill bit.The CCD position indicators are mainly used in determining to add
The position in work hole, is operated with the station for ensureing the reachable setting of main shaft.The CCD position indicators can pass through any prior art
Realize.
Further, the present invention is persistently entered using cooling air unit also by the way of cold wind secondary process to drill bit with hole
Row spray cooling, cold flow is 0.35m3/min.
Further, the form of the cooling air unit processing includes the mode that jet or jet are combined with air-breathing.Using this
Mode, can blow away or siphon away the chip on processing hole and periphery, it is ensured that the precision of processing and the stability of performance.
Further, the cooling air unit is arranged on main shaft, is processed with main axle moving.
Further, the cooling air unit is self-contained unit, and individually control mobile route and cooled region are processed.
The present invention makes cutter have certain residence time in atmosphere, and coordinate in the process of great-jump-forward drilling
Cold wind injection is adequately cooled cutter, the heat that cutter drilling process is produced can be enable to scatter and disappear, it is ensured that cutter is cut
Consider performance and life-span to be worth doing；Cutter is reduced because thermal expansion produces excessive friction.
Wherein, cold wind auxiliary drilling, device to hole carries out cold wind injection, reduces the temperature of dielectric layer resin, it is possible to reduce viscous knife
Phenomenon, enables drilling cuttings smoothly to discharge；Additionally chip removal can be assisted with chip in cleaning eye；The main phase of great-jump-forward bore process
When the heat produced in subsection hole-drilling, the cutting output and hole for reducing each working angles, advantageously reduce ailhead in hole, reduce hole
Position skew ensures hole quality.
Embodiment 3
A kind of PCB aperture processing method of control cutting heat, including step in detail below：
S1. the quantity in processing hole needed for setting on same pcb board, the drilling depth in processing hole of pcb plates is set as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.4h's in described hole
Drilling depth；Particularly, described first processing hole can be any one of the processing hole described in S1.
S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in described hole
Drilling goes out 0.4h drilling depth；Particularly, described next processing hole is closest to the hole position in a processing hole.
S4. S3 manufacturing procedure is repeated, until completing the first round drilling processing in whole processing holes set in S1；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.2h's in described hole
Drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.2h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
Particularly, next processing hole described in S3, S5 is the processing hole that processing has been completed closest to previous step.
Particularly, next processing Kong Weiyu previous steps described in S3, S5 have completed the processing hole of processing with one
Process the processing hole at hole interval.
Particularly, next processing Kong Weiyu previous steps described in S3, S5 have completed the processing hole of processing with two
Process the processing hole at hole interval.
Further, the quantity in the processing hole set in S1 is 4.Inventor verifies discovery by substantial amounts of research,
Under the processing hole number of this setting, the efficiency of processing with maximized optimization processing effect, can be improved.
Further, CCD position indicators are installed on the main shaft of the drill bit.The CCD position indicators are mainly used in determining to add
The position in work hole, is operated with the station for ensureing the reachable setting of main shaft.The CCD position indicators can pass through any prior art
Realize.
Further, the present invention is persistently entered using cooling air unit also by the way of cold wind secondary process to drill bit with hole
Row spray cooling, cold flow is 0.4m3/min.
Further, the form of the cooling air unit processing includes the mode that jet or jet are combined with air-breathing.Using this
Mode, can blow away or siphon away the chip on processing hole and periphery, it is ensured that the precision of processing and the stability of performance.
Further, the cooling air unit is arranged on main shaft, is processed with main axle moving.
Further, the cooling air unit is self-contained unit, and individually control mobile route and cooled region are processed.
The present invention makes cutter have certain residence time in atmosphere, and coordinate in the process of great-jump-forward drilling
Cold wind injection is adequately cooled cutter, the heat that cutter drilling process is produced can be enable to scatter and disappear, it is ensured that cutter is cut
Consider performance and life-span to be worth doing；Cutter is reduced because thermal expansion produces excessive friction.
Wherein, cold wind auxiliary drilling, device to hole carries out cold wind injection, reduces the temperature of dielectric layer resin, it is possible to reduce viscous knife
Phenomenon, enables drilling cuttings smoothly to discharge；Additionally chip removal can be assisted with chip in cleaning eye；The main phase of great-jump-forward bore process
When the heat produced in subsection hole-drilling, the cutting output and hole for reducing each working angles, advantageously reduce ailhead in hole, reduce hole
Position skew ensures hole quality.
Embodiment 4
A kind of PCB aperture processing method of control cutting heat, including step in detail below：
S1. the quantity in processing hole needed for setting on same pcb board, the drilling depth in processing hole of pcb plates is set as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.4h's in described hole
Drilling depth；Particularly, described first processing hole can be any one of the processing hole described in S1.
S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in described hole
Drilling goes out 0.4h drilling depth；Particularly, described next processing hole is closest to the hole position in a processing hole.
S4. S3 manufacturing procedure is repeated, until completing the first round drilling processing in whole processing holes set in S1；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.2h's in described hole
Drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.2h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
Particularly, next processing Kong Weiyu previous steps described in S3, S5 have completed the processing hole of processing with two
Process the processing hole at hole interval.
Further, the quantity in the processing hole set in S1 is 6.Inventor verifies discovery by substantial amounts of research,
Under the processing hole number of this setting, the efficiency of processing with maximized optimization processing effect, can be improved.
Further, CCD position indicators are installed on the main shaft of the drill bit.The CCD position indicators are mainly used in determining to add
The position in work hole, is operated with the station for ensureing the reachable setting of main shaft.The CCD position indicators can pass through any prior art
Realize.
Further, the present invention is persistently entered using cooling air unit also by the way of cold wind secondary process to drill bit with hole
Row spray cooling, cold flow is 0.4m3/min.
Further, the form of the cooling air unit processing includes the mode that jet or jet are combined with air-breathing.Using this
Mode, can blow away or siphon away the chip on processing hole and periphery, it is ensured that the precision of processing and the stability of performance.
Further, the cooling air unit is arranged on main shaft, is processed with main axle moving.
Further, the cooling air unit is self-contained unit, and individually control mobile route and cooled region are processed.
The present invention makes cutter have certain residence time in atmosphere, and coordinate in the process of great-jump-forward drilling
Cold wind injection is adequately cooled cutter, the heat that cutter drilling process is produced can be enable to scatter and disappear, it is ensured that cutter is cut
Consider performance and life-span to be worth doing；Cutter is reduced because thermal expansion produces excessive friction.
Wherein, cold wind auxiliary drilling, device to hole carries out cold wind injection, reduces the temperature of dielectric layer resin, it is possible to reduce viscous knife
Phenomenon, enables drilling cuttings smoothly to discharge；Additionally chip removal can be assisted with chip in cleaning eye；The main phase of great-jump-forward bore process
When the heat produced in subsection hole-drilling, the cutting output and hole for reducing each working angles, advantageously reduce ailhead in hole, reduce hole
Position skew ensures hole quality.
Embodiment 5
A kind of PCB aperture processing method of control cutting heat, including step in detail below：
S1. the quantity in processing hole needed for setting on same pcb board, the drilling depth in processing hole of pcb plates is set as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.4h's in described hole
Drilling depth；Particularly, described first processing hole can be any one of the processing hole described in S1.
S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in described hole
Drilling goes out 0.4h drilling depth；Particularly, described next processing hole is closest to the hole position in a processing hole.
S4. S3 manufacturing procedure is repeated, until completing the first round drilling processing in whole processing holes set in S1；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.2h's in described hole
Drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.2h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
Particularly, next processing Kong Weiyu previous steps described in S3, S5 have completed the processing hole of processing with one
Process the processing hole at hole interval.
Further, the quantity in the processing hole set in S1 is 5.Inventor verifies discovery by substantial amounts of research,
Under the processing hole number of this setting, the efficiency of processing with maximized optimization processing effect, can be improved.
Further, CCD position indicators are installed on the main shaft of the drill bit.The CCD position indicators are mainly used in determining to add
The position in work hole, is operated with the station for ensureing the reachable setting of main shaft.The CCD position indicators can pass through any prior art
Realize.
Further, the present invention is persistently entered using cooling air unit also by the way of cold wind secondary process to drill bit with hole
Row spray cooling, cold flow is 0.4m3/min.
Further, the form of the cooling air unit processing includes the mode that jet or jet are combined with air-breathing.Using this
Mode, can blow away or siphon away the chip on processing hole and periphery, it is ensured that the precision of processing and the stability of performance.
Further, the cooling air unit is arranged on main shaft, is processed with main axle moving.
Further, the cooling air unit is self-contained unit, and individually control mobile route and cooled region are processed.
The present invention makes cutter have certain residence time in atmosphere, and coordinate in the process of great-jump-forward drilling
Cold wind injection is adequately cooled cutter, the heat that cutter drilling process is produced can be enable to scatter and disappear, it is ensured that cutter is cut
Consider performance and life-span to be worth doing；Cutter is reduced because thermal expansion produces excessive friction.
Wherein, cold wind auxiliary drilling, device to hole carries out cold wind injection, reduces the temperature of dielectric layer resin, it is possible to reduce viscous knife
Phenomenon, enables drilling cuttings smoothly to discharge；Additionally chip removal can be assisted with chip in cleaning eye；The main phase of great-jump-forward bore process
When the heat produced in subsection hole-drilling, the cutting output and hole for reducing each working angles, advantageously reduce ailhead in hole, reduce hole
Position skew ensures hole quality.
Embodiment 6
A kind of PCB aperture processing method of control cutting heat, including step in detail below：
S1. the quantity in processing hole needed for setting on same pcb board, the drilling depth in processing hole of pcb plates is set as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.3h's in described hole
Drilling depth；Particularly, described first processing hole can be any one of the processing hole described in S1.
S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in described hole
Drilling goes out 0.3h drilling depth；Particularly, described next processing hole is closest to the hole position in a processing hole.
S4. S3 manufacturing procedure is repeated, until completing the first round drilling processing in whole processing holes set in S1；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.1h's in described hole
Drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.1h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
Particularly, in a kind of processing mode of the present embodiment, next processing hole described in S3, S5 is closest to upper
One step has completed the processing hole of processing.
Particularly, in a kind of processing mode of the present embodiment, next processing Kong Weiyu previous steps described in S3, S5 are
Completing the processing hole of processing has the processing hole at a processing hole interval.
Particularly, in a kind of processing mode of the present embodiment, next processing Kong Weiyu previous steps described in S3, S5 are
Completing the processing hole of processing has the processing hole at two processing hole intervals.
Further, the quantity in the processing hole set in S1 is 8.Inventor verifies discovery by substantial amounts of research,
Under the processing hole number of this setting, the efficiency of processing with maximized optimization processing effect, can be improved.
Further, CCD position indicators are installed on the main shaft of the drill bit.The CCD position indicators are mainly used in determining to add
The position in work hole, is operated with the station for ensureing the reachable setting of main shaft.The CCD position indicators can pass through any prior art
Realize.
Further, the present invention is persistently entered using cooling air unit also by the way of cold wind secondary process to drill bit with hole
Row spray cooling, cold flow is 0.3m3/min.
Further, the form of the cooling air unit processing includes the mode that jet or jet are combined with air-breathing.Using this
Mode, can blow away or siphon away the chip on processing hole and periphery, it is ensured that the precision of processing and the stability of performance.
Further, the cooling air unit is arranged on main shaft, is processed with main axle moving.
Further, the cooling air unit is self-contained unit, and individually control mobile route and cooled region are processed.
The present invention makes cutter have certain residence time in atmosphere, and coordinate in the process of great-jump-forward drilling
Cold wind injection is adequately cooled cutter, the heat that cutter drilling process is produced can be enable to scatter and disappear, it is ensured that cutter is cut
Consider performance and life-span to be worth doing；Cutter is reduced because thermal expansion produces excessive friction.
Wherein, cold wind auxiliary drilling, device to hole carries out cold wind injection, reduces the temperature of dielectric layer resin, it is possible to reduce viscous knife
Phenomenon, enables drilling cuttings smoothly to discharge；Additionally chip removal can be assisted with chip in cleaning eye；The main phase of great-jump-forward bore process
When the heat produced in subsection hole-drilling, the cutting output and hole for reducing each working angles, advantageously reduce ailhead in hole, reduce hole
Position skew ensures hole quality.
Embodiment 7
A kind of PCB aperture processing method of control cutting heat, including step in detail below：
S1. the quantity in processing hole needed for setting on same pcb board, the drilling depth in processing hole of pcb plates is set as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.5h's in described hole
Drilling depth；Particularly, described first processing hole can be any one of the processing hole described in S1.
S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in described hole
Drilling goes out 0.3h drilling depth；Particularly, described next processing hole is closest to the hole position in a processing hole.
S4. S3 manufacturing procedure is repeated, until completing the first round drilling processing in whole processing holes set in S1；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.3h's in described hole
Drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.1h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
Particularly, in a kind of processing mode of the present embodiment, next processing hole described in S3, S5 is closest to upper
One step has completed the processing hole of processing.
Particularly, in a kind of processing mode of the present embodiment, next processing Kong Weiyu previous steps described in S3, S5 are
Completing the processing hole of processing has the processing hole at a processing hole interval.
Particularly, in a kind of processing mode of the present embodiment, next processing Kong Weiyu previous steps described in S3, S5 are
Completing the processing hole of processing has the processing hole at two processing hole intervals.
Further, the quantity in the processing hole set in S1 is 10.Inventor verifies discovery by substantial amounts of research,
Under the processing hole number of this setting, the efficiency of processing with maximized optimization processing effect, can be improved.
Further, CCD position indicators are installed on the main shaft of the drill bit.The CCD position indicators are mainly used in determining to add
The position in work hole, is operated with the station for ensureing the reachable setting of main shaft.The CCD position indicators can pass through any prior art
Realize.
Further, the present invention is persistently entered using cooling air unit also by the way of cold wind secondary process to drill bit with hole
Row spray cooling, cold flow is 0.5m3/min.
Further, the form of the cooling air unit processing includes the mode that jet or jet are combined with air-breathing.Using this
Mode, can blow away or siphon away the chip on processing hole and periphery, it is ensured that the precision of processing and the stability of performance.
Further, the cooling air unit is arranged on main shaft, is processed with main axle moving.
Further, the cooling air unit is self-contained unit, and individually control mobile route and cooled region are processed.
The present invention makes cutter have certain residence time in atmosphere, and coordinate in the process of great-jump-forward drilling
Cold wind injection is adequately cooled cutter, the heat that cutter drilling process is produced can be enable to scatter and disappear, it is ensured that cutter is cut
Consider performance and life-span to be worth doing；Cutter is reduced because thermal expansion produces excessive friction.
Wherein, cold wind auxiliary drilling, device to hole carries out cold wind injection, reduces the temperature of dielectric layer resin, it is possible to reduce viscous knife
Phenomenon, enables drilling cuttings smoothly to discharge；Additionally chip removal can be assisted with chip in cleaning eye；The main phase of great-jump-forward bore process
When the heat produced in subsection hole-drilling, the cutting output and hole for reducing each working angles, advantageously reduce ailhead in hole, reduce hole
Position skew ensures hole quality.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.It is noted that the technical characteristic not being described in detail in the present invention, can be by this
Field any prior art is realized.
Claims (10)
1. a kind of pcb board hole forming method of control cutting heat, it is characterised in that including step in detail below：
S1. the quantity in processing hole needed for setting on same pcb board, sets the drilling depth in processing hole of pcb plates as h；
S2. first round drilling processing is carried out to the first processing hole of pcb board using drill bit, drilling goes out 0.3h- in described hole
0.5h drilling depth；S3. next processing hole drill bit being moved on pcb board carries out first round drilling processing, in institute
Drilling goes out 0.3h-0.5h drilling depth in the hole stated；S4. S3 manufacturing procedure is repeated, until completing the whole set in S1
Process the first round drilling processing in hole；
S5. drill bit is reset to the first processing hole progress next round drilling processing of pcb board, and drilling goes out 0.1h- in described hole
0.3h drilling depth；
S6. according to S5, next processing hole that drill bit is moved on pcb board carries out epicycle drilling processing, in described hole
Drilling goes out 0.1h-0.3h drilling depth；
S7. S6 manufacturing procedure is repeated, until completing the epicycle drilling processing in whole processing holes set in S1；
S8. repeat S5-S7, until the whole processing holes set in S1 reach setting needed for setting processing hole depth h.
2. the pcb board hole forming method of control cutting heat according to claim 1, it is characterised in that what is set in S1 adds
The quantity in work hole is 3-10.
3. the pcb board hole forming method of control cutting heat according to claim 1, it is characterised in that described in S3, S5
Next processing hole is the processing hole that processing has been completed closest to previous step.
4. the pcb board hole forming method of control cutting heat according to claim 1, it is characterised in that described in S3, S5
The processing hole that next processing Kong Weiyu previous steps have completed processing has a processing hole for processing hole interval.
5. the pcb board hole forming method of control cutting heat according to claim 1, it is characterised in that described in S3, S5
The processing hole that next processing Kong Weiyu previous steps have completed processing has two processing holes for processing hole interval.
6. the pcb board hole forming method of control cutting heat according to claim 1, it is characterised in that the master of the drill bit
CCD position indicators are installed on axle.
7. the pcb board hole forming method of control cutting heat according to claim 1, it is characterised in that also auxiliary using cold wind
The mode of processing is helped, spray cooling is persistently carried out to drill bit and hole using cooling air unit, cold flow is 0.3-0.5m3/
min。
8. the pcb board hole forming method of control cutting heat according to claim 7, it is characterised in that the cooling air unit
The form of processing includes the mode that jet or jet are combined with air-breathing.
9. the pcb board hole forming method of control cutting heat according to claim 7, it is characterised in that the cooling air unit
On main shaft, processed with main axle moving.
10. the pcb board hole forming method of control cutting heat according to claim 7, it is characterised in that the cooling air unit
For self-contained unit, individually control mobile route and cooled region are processed.
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| CN201710257966.7A CN106944638A (en) | 2017-04-19 | 2017-04-19 | A kind of PCB aperture processing method of control cutting heat |
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| CN201710257966.7A CN106944638A (en) | 2017-04-19 | 2017-04-19 | A kind of PCB aperture processing method of control cutting heat |
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Application publication date: 20170714 |