CN101954500A - Device and method for processing counterbore of circuit board - Google Patents
Device and method for processing counterbore of circuit board Download PDFInfo
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- CN101954500A CN101954500A CN 201010253673 CN201010253673A CN101954500A CN 101954500 A CN101954500 A CN 101954500A CN 201010253673 CN201010253673 CN 201010253673 CN 201010253673 A CN201010253673 A CN 201010253673A CN 101954500 A CN101954500 A CN 101954500A
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Abstract
The invention discloses a device and a method for processing a counterbore of a circuit board. The device comprises a bench-type drilling machine, a reaming knife, a working table and a depth control device fixed on the working table, wherein the reaming knife comprises more than two main/auxiliary cutting edges; the front angle of the reaming knife is between 13 and 17 degrees, the back angle is between 27 and 33 degrees, and the spiral angle is between 13 and 17 degrees; and the depth control device comprises a locking device, a positioning device, a positioning disc, a guide mechanism and a working table. When the device is in use, the relative positions of the depth control device and the bench-type drilling machine are adjusted to ensure that a positioning guide post in front of the reaming knife and the guide mechanism of the depth control device are positioned on the same axial line; and the feeding depth is set, the drilling machine is started, then a manual feed handle is rotated to drill the counterbore, and when the guide post contacts the positioning disc, a drilling bit is put up to finish the processing of the counter bore. The device and the method have the advantages of convenient use and adjustment, simple structure, easy maintenance, long service life, long processing cost and the like, and are suitable for wide popularization in the field of processing the counterbore.
Description
Technical field
The present invention relates to a kind of wiring board counterbore processing unit (plant) and method.
Background technology
The hole that is used for fixed-site on the printed wiring board mostly is counterbore, these counterbores of conventional art all are to use conventional countersink to process on numerical control drilling machine, numerical control drilling machine uses conventional countersink breaking when these counterbores of processing serious, positional precision and aperture precision can not effectively be guaranteed, at all can't ordinary production, mainly performance and former because:
1, the employed countersink handle of a knife of numerical control drilling machine diameter all is φ 3.175mm, and counter bore hole diameters all is more than the φ 4.0mm, even reach φ 12.0mm, the cutter footpath is big more, the suffered moment of torsion of handle of a knife is big more in the drilling process, when moment of torsion reached the peak torque that handle of a knife can bear, the handle of a knife phenomenon that fractures will take place; Handle of a knife fractures and can cause following harm: the one, and cutter life reduces (average life span less than 200 holes), and the cost of charp tool increases; The 2nd, the product of producing can be discarded; The 3rd, fracture main shaft moment moment is born big radial load effect, influences main shaft precision and life-span; The 4th, working (machining) efficiency is low, and the upper and lower plates time is long, the handle of a knife break process time is long.
2, (bore diameter is big more greater than the handle of a knife diameter because of bore diameter, gap is big more), the suffered moment of torsion of handle of a knife is very big in the drilling process, even the problem that cutter fractures does not take place, cutter is subjected in drilling process also can be unstable than big twisting force, can tremble in the horizontal direction, the result is position, hole precision and the aperture that influence is holed.
3, well-known, the cutting edge of conventional countersink all is 2, and cutting edge is few more, and the cutting output of each cutting edge will increase in the unit interval, and cutting edge is stressed will to be increased, and can cause instability in the cutter boring procedure, and the result influences aperture precision.
4, utilize counterbore angle and the counterbore depth dimensions relation of conditioning each other to design, guarantee all kinds of technical requirements of counterbore by the control lathe Z axle free degree, but present lathe adds man-hour actual, be difficult to spatial relation and free degree restriction state between assurance workpiece, frock and the cutter three, thereby do not reach the degree of depth requirement of all kinds of counterbores of control.
On numerical control drilling machine, use the problem of conventional countersink processing counterbore method and existence just can not satisfy printed wiring board countersunk hole quality and efficient, cost requirement like this.Along with wiring board industry profit margin more and more lower today, each enterprise all improves the quality and production efficiency in the various advanced technologies of research, so we also must use new departure processing printed wiring board assurance countersunk hole quality also to enhance productivity as possible.
As shown in Figure 6, micrometer is widely used as survey tool, it measures adjustment member, be micrometric screw a, nut casing b, microdrum c, fixed muffle d and the ratchet swing handle e of micrometer, classical especially metering system, precision height not only, and simple to operate, so can be used as the degree of depth control assembly of counterbore, its structure uses.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of wiring board counterbore processing unit (plant) and method.The technological means that the present invention adopts is as follows:
A kind of wiring board counterbore processing unit (plant) comprises: bench drill, countersink and workbench; It is characterized in that also comprising: be fixed on the degree of depth control device on the workbench;
The quantity of the master/front cutting edge of described countersink is more than 2; In addition, the anterior angle of described countersink is between 13 °-17 °, and relief angle is between 27 °-33 °, and helical angle is between 13 °-17 °;
Described degree of depth control device comprises locking device, positioner, positioning disk, guiding mechanism and workbench; The structure of described positioner is the structure of miking adjustment member, and the described positioner support that is fixed by positioning device is fixed on the workbench; Described workbench is provided with guiding mechanism, be positioned at positioner directly over; The top of the screw rod on positioner is provided with positioning disk, and described positioning disk can move up and down along guiding mechanism; Movable mark tube on the rotary positioning apparatus, the control screw rod drives positioning disk and moves up and down in guiding mechanism; Described locking device is used for tie down screw near being fixed on screw rod.The quantity of the master/front cutting edge of described countersink is 4; The anterior angle of described countersink is 15 °, and relief angle is 30 °, and helical angle is 15 °.Be provided with and the suitable positioning guide column of wiring board counterbore bottom diameter at described countersink front end.Diameter and the same diameter of drilling part at the bare terminal end handle of a knife of described countersink.Described locking device is made of drive link, jackscrew and turning handle; Be provided with a hole above the described guiding mechanism, described jackscrew is with silk hole threaded engagement; Described drive link is fixed on the workbench by the locking device fixed support; Turning handle is rotated control by drive link to jackscrew.
A kind of wiring board counterbore processing method of above-mentioned processing unit (plant) is characterized in that
1), diameter and the position according to customer requirement gets out wiring board counterbore bottom outlet;
2), this wiring board being carried out electroless copper plating makes hole wall form conductive layer;
3), this wiring board carried out figure shift, the bottom outlet of counterbore will be made the tent hole when figure shifted;
4), this wiring board is carried out demoulding, etching, takes off resist layer and handle, form the wiring board that has line pattern;
5), this wiring board is carried out welding resistance printing, exposure, development, curing, surface treatment, sharp processing operation;
6) but, prepare bench drill and be in machining state, the countersink clamping on the bench drill chuck and fix;
7), be positioned on the workbench boring counterbore degree of depth control device for, adjust the relative position of degree of depth control device and bench drill, rotate the hand feed handle, the guiding mechanism of countersink front positioning guide column and degree of depth control device is on the same axis;
8), wiring board to be processed is put on the workbench, make wiring board counterbore bottom outlet alignment guide mechanism center, rotating the bench drill auger spindle then partly makes the countersink positioning guide column aim at wiring board counterbore bottom outlet, auger spindle is pressed down until the countersink positioning guide column can pass the counterbore bottom outlet smoothly, this moment countersink, wiring board counterbore bottom outlet, guiding mechanism on an axis, finish the vertical direction location, the countersink positioning guide column that makes rotation drilling machine feeding handle falls in the wiring board counterbore bottom outlet fully, machine does not spud in earlier, the movable mark tube of dextrorotation positioner makes the positioning disk in guiding mechanism just in time touch the lower edge of countersink positioning guide column, this position is as zero point, locking auger spindle and degree of depth control device make it fixed-site;
9), the counter bore hole diameters according to customer requirement, bottom diameter, counterbore goniometer calculate the counterbore degree of depth, regulates the positioner below the degree of depth control device, sets feeding depth;
10), fixing wiring board to be processed, rotate the hand feed handle after starting rig, make countersink front positioning guide column begin the drilling counterbore behind the entry-line plate counterbore bottom outlet at a slow speed, guide pillar to be positioned touches counter-rotation feeding handle behind the positioning disk on the positioner, lift drill bit, first counterbore this moment completion of processing;
11), process remaining counterbore until this plate completion of processing, change and produce plate by as above method processing by as above method;
12), to this wiring board clean, electrical measurement, visual inspection, obtain the finished product wiring board.
It is conspicuous comparing advantage of the present invention with prior art, specific as follows:
1, this wiring board counterbore processing unit (plant) and method, can on the lathe platform, realize the accurate control of different size and classification counterbore (the tack counterbore of different counter bore hole diameters, different bottom diameter, different counterbore angle, the different counterbore degree of depth, taper counterbore (82 degree/90 degree/230 degree counterbores etc.)) according to customer requirement, the highest aperture precision can reach 4mil (0.1mm), and aperture precision CPK value reaches 2.15; Maximum gauge can be machined to 12.0mm.
2, owing to adopted novel countersink, master/front cutting edge has been increased to 4 by 2, simultaneously anterior angle, relief angle, Luo Jiaojiao is adjusted, and has increased the stability in the drilling process.
3, owing to adopted novel countersink, countersink front end to increase the positioning guide column suitable, guaranteed the precision of counterbore to greatest extent with the counterbore bottom diameter;
4, the handle of novel countersink footpath is identical with the brill footpath, has guaranteed that handle of a knife can sustain the big torsion that produces in the drilling process, has avoided the problem of breaking.
5, novel taper countersink has certain versatility, as long as the counterbore angle is the same, can bore the hole of any diameter bigger and littler than countersink handle footpath than counter bore hole diameters in theory, only will adjust different brill dark (thickness of wiring board wants enough simultaneously).
6, the positioner below the degree of depth control device is the micrometer structure, can be in the positioner range ability arbitrarily, drilling depth under the accurate control, the comprehensive error of other mechanisms, depth accuracy can be controlled within the 50 μ m.
7, the positioner of degree of depth control device has been owing to adopted locking device, so bore the helicitic texture that the drop power that produces when touching positioning disk can damage positioning device under countersink, has the batch process meaning.
8, degree of depth control device have use easy to adjust, simple in structure, be easy to maintenance, long service life, processing cost is lower, the range of work is wide, volume is little, advantage such as in light weight.
Description of drawings
Fig. 1 is the specification schematic diagram of the special-purpose countersink of the taper adopted of the present invention;
Fig. 2 is the specification schematic diagram of the special-purpose countersink of the tack that adopts of the present invention;
Fig. 3 is the wiring board counterbore schematic cross-section that the present invention adopts the special-purpose countersink boring of taper;
Fig. 4 is the wiring board counterbore schematic cross-section that the present invention adopts the special-purpose countersink boring of tack;
Fig. 5 is that the present invention adopts special-purpose countersink to bore the composition structural representation of counterbore;
Fig. 6 is the measurement adjustment member structural representation of micrometer;
Fig. 7 is that degree of depth control device of the present invention is formed structural representation;
Fig. 8 is degree of depth control device of the present invention and bench drill, wiring board aligning structure schematic diagram;
Structural representation when Fig. 9 is a degree of depth control device zero setting of the present invention;
Figure 10 is that degree of depth control device of the present invention is set the dark back of brill structural representation;
Figure 11 touches structural representation behind the positioning disk for getting into terminal point under the countersink of the present invention;
Figure 12 has bored structural representation behind the counterbore cutter lifting for the present invention;
Figure 13 is a counterbore inside diameter measurement evaluation map of the present invention.
Among the figure: 1, countersink, 2, the bare terminal end handle of a knife, 3, positioning guide column, 4, drilling machine chuck, 5, lock screw, 7, wiring board counterbore bottom outlet, 8, degree of depth control device, 9, master/front cutting edge, 11, anterior angle, 12, relief angle, 13, helical angle, 14, counterbore, 15, locking device fixed support, 16, locking device, 17, positioner, 18, positioning disk, 19, guiding mechanism, 20, the positioner fixed support, 21, workbench, 22, wiring board to be processed, 23, screw rod, 24, the movable mark tube, 25, drive link, 26, jackscrew, 27, turning handle, 28, the silk hole.
The specific embodiment
As depicted in figs. 1 and 2, the quantity of the master/front cutting edge 9 of countersink of the present invention surpasses 2 promptly to be increased on 2 original basis, changes into countersink 1 anterior angle 11 between 13 °-17 ° simultaneously, relief angle 12 changes between 27 °-33 °, helical angle 13 changes between 13 °-17 °; Make stressed more evenly, reduce mechanical oscillation; With bare terminal end handle of a knife 2 diameters by φ 3.175mm change into drilling part with diameter for example the drilling section diameter be 8mm, then the handle of a knife diameter also is 8mm.In addition, on drill bit position foremost, increased positioning guide column 3, these positioning guide column 3 diameters are identical with wiring board counterbore bottom outlet 7 diameters of customer requirement, when boring counterbore this positioning guide column 3 be introduced into the counterbore bottom outlet, in order to guarantee product quality, the diameter precision of cutter positioning guide pillar reaches φ d
-0.05 -0.1And surface roughness reaches
This countersink uses on bench drill, can reach best result of use as cooperating degree of depth control device.Above feature is applicable to the different shape countersink, as tack countersink, taper countersink 82 degree/90 degree/120 degree etc., according to the cutter of counterbore shape design different angles.Also have the taper countersink in this countersink to have certain versatility, as long as the counterbore angle is the same, can bore the hole of any diameter bigger and littler than countersink handle footpath than counter bore hole diameters, it is dark only to need to adjust different brills in two process.
The degree of depth control device of processing wiring board counterbore of the present invention utilizes counterbore angle and the counterbore depth dimensions relation of conditioning each other is designed, and guarantees all kinds of technical requirements of counterbore by the control lathe Z axle free degree again.As shown in Figure 6, degree of depth control device of the present invention comprises locking device 16, positioner 17, positioning disk 18, guiding mechanism 19 and workbench 21; The structure of described positioner 17 is the structure of miking adjustment member, and described positioner 17 support 20 that is fixed by positioning device is fixed on the workbench 21; Described workbench 21 is provided with guiding mechanism 19, be positioned at positioner 17 directly over; The top of the screw rod 23 on positioner 17 is provided with positioning disk 18, and described positioning disk 18 can move up and down along guiding mechanism 19; Movable mark tube 24 on the rotary positioning apparatus 17, control screw rod 23 drives positioning disk 18 and moves up and down in guiding mechanism 19; Described locking device 16 is used for tie down screw 23 near being fixed on screw rod 23.Wherein locking device 23 can be structures such as vice structure, band-type brake structure, jackscrew.What locking device 16 of the present invention adopted is the jackscrew structure, is made of drive link 14, jackscrew 15 and turning handle 27; Be provided with a hole 28 above the described guiding mechanism 19, described jackscrew 26 is with a hole 28 threaded engagement; Described drive link 25 is fixed on the workbench 21 by locking device fixed support 15; Turning handle 27 is controlled by 25 pairs of jackscrews 26 of drive link, rotates turning handle 27 and drives jackscrews 26 rotations by drive link 25, feeds and withdraw from the purpose that reaches locking and unclamp screw rod 23 with control jackscrew 26.
The tack countersink processing counterbore that is respectively 90 ° taper countersink and 180 ° with the counterbore angle is that example is done explanation below:
Embodiment 1: as Fig. 1, Fig. 3 and shown in Figure 5, Figure 1 shows that taper countersink angle is 90 ° a structural representation, and adopt this countersink to bore the composition structural representation that counterbore cooperates degree of depth control device as shown in Figure 5, wherein bare terminal end handle of a knife 2 diameters are changed into and the same diameter of drilling part by φ 3.175mm, be that the drilling section diameter is 8mm, then the handle of a knife diameter also is 8mm; Wiring board counterbore bottom outlet 7 diameters of positioning guide column 3 diameter design consideration customer requirements are identical, but tolerance is φ d
-0.05 -0.1, surface roughness reaches
Guaranteeing has better fit with wiring board counterbore bottom outlet 7; The quantity of master/front cutting edge 9 is increased to 4 by normal 2, simultaneously countersink anterior angle 11 is changed into 15 °, relief angle 12 and changes 30 °, helical angle 13 into and change 15 ° into, makes stressed more evenly, reduces mechanical oscillation; The beating degree of master/front cutting edge 9 is 0.02, guarantees the counterbore precision with this countersink 1 processing to greatest extent.Carry out counterbore and add man-hour, mounting means as shown in Figure 5 is placed on the bare terminal end handle of a knife 2 of countersink 1 in the drilling machine chuck 4 on the bench drill, and is fixed on the bench drill by lock screw 5.
Described degree of depth control device present embodiment as shown in Figure 7 selects the epoxy resin board of a L200xW300xH10 as workbench 21, outside dimension perforate in workbench 21 centre positions according to guiding mechanism 19, guiding mechanism 19 is mounted in the hole of being opened, guarantee that certain tolerance fit can not relatively move guiding mechanism 19 in the hole of workbench 21, center boring below guiding mechanism 19.Positioner 17 is that the top of micrometer is removed, and keeps support, the screw rod 23 of the reserve part of micrometer is goed deep in the guiding mechanism 19, and front end and positioning disk 18 are connected and fixed.The micrometer stand part promptly: positioner fixed support 20 is fixed by bolts on the workbench 21, keeps positioner 17 vertical with workbench 21.Reach the effect of location again by being used of foregoing locking device 16, concrete technology implementation procedure is as follows:
Boring counterbore depth localization device 17 Primary Location in bench drill table top center, put the wiring board to be processed 22 that has bored wiring board counterbore bottom outlet 7, be clamped in special-purpose countersink 1 on the bench drill chuck and locking, adjust depth localization device 17, bench drill auger spindle, wiring board to be processed 22 threes' relative position, the wiring board counterbore bottom outlet 7 three centers of the guiding mechanism 19 on countersink front positioning guide column 3, the workbench 21, wiring board to be processed are on the same axis, as shown in Figure 8; The countersink positioning guide column 3 that makes rotation drilling machine feeding handle falls in the wiring board counterbore bottom outlet 7 fully, machine does not spud in earlier, the movable mark tube 24 of dextrorotation positioner 17 makes the positioning disk 18 in guiding mechanism 19 just in time touch the lower edge of countersink positioning guide column 3, and this position is as zero point, as shown in Figure 9; Counterbore degree of depth h according to customer requirement, the movable mark tube 24 of left-handed positioner 17 makes from the downward modulation of counting zero point and highly is h, adjusting locking device 16 is that turning handle 27 is controlled by 25 pairs of jackscrews 26 of drive link, rotate turning handle 27 and drive jackscrew 26 rotations by drive link 25, with feeding of control jackscrew 26, to locking state, as shown in figure 10; Rotate the hand feed handle after starting rig, make countersink front positioning guide column 3 begin the drilling counterbore behind the entry-line plate counterbore bottom outlet 7 at a slow speed, guide pillar 3 to be positioned no longer continues to bore down after touching positioning disk 18, as shown in figure 11; Counter-rotation feeding handle lifts countersink 1, and this moment, countersink 1 left the wiring board that bores 22, and counterbore 14 is completion of processing.Counterbore 14 shapes on the wiring board to be processed 22 that processes as shown in Figure 3, counterbore 14 aperture CPK values reach more than 2.0.
Embodiment 2: as Fig. 2, Fig. 4 and shown in Figure 5.Figure 2 shows that the tack countersink is that cone angle is by 90 ° of structural representations that become 180 ° (tack), countersink shown in Figure 5 bores the composition structural representation that counterbore cooperates degree of depth control device, because the structure of the bare terminal end handle of a knife 2 of difform countersink rear end is identical, here just not tack countersink mounting structure figure is drawn (countersink among Fig. 5 is that 90 ° of countersinks have become the tack countersink by cone angle), cutting tip diameter and bare terminal end handle of a knife 2 diameters become the same with client's final aperture, positioning guide column 3 diameters are according to customer requirement, other parameter such as major-minor cutting edge 9 quantity, anterior angle 11, relief angle 12, helical angle 13, beating degree, surface roughness, carry out counterbore and add the mounting means in man-hour, and the step that is used with degree of depth control device is all the same with embodiment 1, is not therefore giving unnecessary details here; With this special-purpose tack countersink use bench drill cooperate on the wiring board to be processed 22 that degree of depth control device 8 processes according to as shown in Figure 5 mode counterbore 14 shapes as shown in Figure 4, wherein counterbore 14 aperture CPK values can reach more than 2.0.
Above-described is the architectural feature of the improved wiring board counterbore of the present invention feeder apparatus and the description of use, descends to regard to the wiring board counterbore processing method of utilizing above-mentioned processing unit (plant) to be described, and particular content is as follows:
1), diameter and the position according to customer requirement gets out wiring board counterbore bottom outlet 7;
2), this wiring board being carried out electroless copper plating makes hole wall form conductive layer;
3), this wiring board carried out figure shift, the bottom outlet of counterbore will be made the tent hole when figure shifted, and avoided plating in follow-up electroplating process electro-coppering and coating against corrosion;
4), this wiring board is carried out demoulding, etching, takes off resist layer and handle, form the wiring board that has line pattern, the chemical copper layer is etched in this moment counterbore bottom outlet hole, becomes non-plating hole;
5), this wiring board is carried out welding resistance printing, exposure, development, curing, surface treatment, sharp processing operation, obtain half-finished wiring board;
6) but, prepare bench drill and be in machining state, countersink 1 is prepared our self-designed special-purpose countersink by customer requirement, as tack countersink, taper countersink 82 degree/90 degree/120 degree, countersink 1 clamping on the bench drill chuck and fix;
7), boring counterbore degree of depth control device 8 Primary Location on workbench 21, bench drill table top center, adjust the relative position of degree of depth control device 8 and bench drill, rotation hand feed handle, the countersink front positioning guide column 3 and the guiding mechanism of degree of depth control device 8 are on the same axis, guarantee that positioner is vertical with work top, and guarantee that locking device is intact effectively;
8), wiring board 22 to be processed is put on the workbench 21, make wiring board counterbore bottom outlet 7 alignment guide mechanisms 19 centers, rotating the bench drill auger spindle then partly makes countersink positioning guide column 3 aim at wiring board counterbore bottom outlet 7, auger spindle is pressed down until countersink positioning guide column 3 can pass the counterbore bottom outlet smoothly, this moment countersink 1, wiring board counterbore bottom outlet 7, guiding mechanism 19 on an axis, finish the vertical direction location, the countersink positioning guide column 3 that makes rotation drilling machine feeding handle falls in the wiring board counterbore bottom outlet 7 fully, machine does not spud in earlier, the movable mark tube 24 of dextrorotation positioner 17 makes the positioning disk 18 in guiding mechanism 19 just in time touch the lower edge of countersink positioning guide column 3, this position is as zero point, locking auger spindle and degree of depth control device 8 make it fixed-site;
9), the counter bore hole diameters according to customer requirement, bottom diameter, counterbore goniometer calculate the counterbore degree of depth, regulates the positioner 17 below the degree of depth control device 8, sets feeding depth;
10), fixing wiring board to be processed, rotate the hand feed handle after starting rig, make countersink 1 front positioning guide column 3 begin the drilling counterbore behind the entry-line plate counterbore bottom outlet 7 at a slow speed, guide pillar 3 to be positioned touches the positioning disk 18 back counter-rotation feeding handles on the positioner 17, lift drill bit, first counterbore this moment completion of processing;
11), process the 2nd hole, the 3rd hole by as above method ...,, change and produce plate by as above method processing until this plate completion of processing;
12), to this wiring board clean, electrical measurement, visual inspection, obtain the finished product wiring board.
By said apparatus and method evaluation is measured in the counterbore aperture, data such as following table:
By the counterbore aperture of as above method processing between 5.8 ± 0.2mm (as shown in figure 13) fully, average CPK value reaches 2.15, process is highly stable, for the wiring board counterbore of other different apertures, different counterbore angle, different bottom diameters, as long as adjustment cutter and parameter just can reach same effect.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (6)
1. a wiring board counterbore processing unit (plant) comprises: bench drill, countersink (1) and workbench (21); It is characterized in that also comprising: be fixed on the degree of depth control device (8) on the workbench (21);
The quantity of the master/front cutting edge (9) of described countersink (1) is more than 2; In addition, the anterior angle of described countersink (11) is between 13 °-17 °, and relief angle (12) is between 27 °-33 °, and helical angle (13) is between 13 °-17 °;
Described degree of depth control device (8) comprises locking device (16), positioner (17), positioning disk (18), guiding mechanism (19) and workbench (21); The structure of described positioner (17) is the structure of miking adjustment member, and described positioner (17) support (20) that is fixed by positioning device is fixed on the workbench (21); Described workbench (21) is provided with guiding mechanism (19), be positioned at positioner (17) directly over; The top of the screw rod (23) on positioner (17) is provided with positioning disk (18), and described positioning disk (18) can move up and down along guiding mechanism (19); Movable mark tube (24) on the rotary positioning apparatus (17), control screw rod (23) drives positioning disk (18) and moves up and down in guiding mechanism (19); Described locking device (16) is used for tie down screw (23) near being fixed on screw rod (23).
2. a kind of wiring board counterbore processing unit (plant) according to claim 1 is characterized in that the quantity of the master/front cutting edge (9) at described countersink is 4; The anterior angle of described countersink (11) is 15 °, and relief angle (12) is 30 °, and helical angle (13) is 15 °.
3. a kind of wiring board counterbore processing unit (plant) according to claim 1 and 2 is characterized in that being provided with the positioning guide column (3) suitable with wiring board counterbore bottom outlet (7) diameter at described countersink front end.
4. a kind of wiring board counterbore processing unit (plant) according to claim 3 is characterized in that diameter and the same diameter of drilling part at the bare terminal end handle of a knife (2) of described countersink.
5. a kind of wiring board counterbore processing unit (plant) according to claim 1 is characterized in that described locking device (16) is made of drive link (25), jackscrew (26) and turning handle (27); Be provided with a hole (28) above the described guiding mechanism (19), described jackscrew (26) is with silk hole (28) threaded engagement; Described drive link (25) is fixed on the workbench (21) by locking device fixed support (15); Turning handle (27) is rotated control by drive link (25) to jackscrew (26).
6. a wiring board counterbore processing method of utilizing the described processing unit (plant) of claim 4 is characterized in that
1), diameter and the position according to customer requirement gets out wiring board counterbore bottom outlet (7);
2), this wiring board being carried out electroless copper plating makes hole wall form conductive layer;
3), this wiring board carried out figure shift, the bottom outlet of counterbore will be made the tent hole when figure shifted;
4), this wiring board is carried out demoulding, etching, takes off resist layer and handle, form the wiring board that has line pattern;
5), this wiring board is carried out welding resistance printing, exposure, development, curing, surface treatment, sharp processing operation;
6) but, prepare bench drill and be in machining state, countersink (1) clamping on the bench drill chuck and fix;
7), be positioned on the workbench (21) boring counterbore degree of depth control device (8), adjust the relative position of degree of depth control device (8) and bench drill, rotation hand feed handle is on the same axis countersink front positioning guide column (3) and the guiding mechanism of degree of depth control device (8);
8), wiring board to be processed (22) is put on the workbench (21), make wiring board counterbore bottom outlet (7) alignment guide mechanism (19) center, rotating the bench drill auger spindle then partly makes countersink positioning guide column (3) aim at wiring board counterbore bottom outlet (7), auger spindle is pressed down until countersink positioning guide column (3) can pass the counterbore bottom outlet smoothly, this moment countersink (1), wiring board counterbore bottom outlet (7), guiding mechanism (19) on an axis, finish the vertical direction location, the countersink positioning guide column (3) that makes rotation drilling machine feeding handle falls in the wiring board counterbore bottom outlet (7) fully, machine does not spud in earlier, the movable mark tube (24) of dextrorotation positioner (17) makes the positioning disk (18) in guiding mechanism (19) just in time touch the lower edge of countersink positioning guide column (3), this position is as zero point, locking auger spindle and degree of depth control device (8) make it fixed-site;
9), the counter bore hole diameters according to customer requirement, bottom diameter, counterbore goniometer are calculated the counterbore degree of depth, the positioner (17) that adjusting degree of depth control device (8) is following, setting feeding depth;
10), fixing wiring board to be processed, rotate the hand feed handle after starting rig, make countersink (1) front positioning guide column (3) begin the drilling counterbore behind the entry-line plate counterbore bottom outlet (7) at a slow speed, guide pillar to be positioned (3) touches positioning disk (18) the back counter-rotation feeding handle on the positioner (17), lift drill bit, first counterbore this moment completion of processing;
11), process remaining counterbore until this plate completion of processing, change and produce plate by as above method processing by as above method;
12), to this wiring board clean, electrical measurement, visual inspection, obtain the finished product wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010253673XA CN101954500B (en) | 2010-08-13 | 2010-08-13 | Device and method for processing counterbore of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010253673XA CN101954500B (en) | 2010-08-13 | 2010-08-13 | Device and method for processing counterbore of circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101954500A true CN101954500A (en) | 2011-01-26 |
| CN101954500B CN101954500B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010253673XA Expired - Fee Related CN101954500B (en) | 2010-08-13 | 2010-08-13 | Device and method for processing counterbore of circuit board |
Country Status (1)
| Country | Link |
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| CN (1) | CN101954500B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159033A (en) * | 2011-03-28 | 2011-08-17 | 冠锋电子科技(梅州)有限公司 | Method for making flared hole on circuit board |
| CN103418814A (en) * | 2013-07-27 | 2013-12-04 | 桐城运城制版有限公司 | Drilling machine provided with center hole and used for thin plates |
| CN103808236A (en) * | 2012-11-14 | 2014-05-21 | 兰州大学 | Blasthole measuring instrument |
| CN107186249A (en) * | 2016-03-14 | 2017-09-22 | 深圳光启高等理工研究院 | Processing method and component for carrying out counter boring to workpiece |
| CN107269223A (en) * | 2017-08-14 | 2017-10-20 | 朱鸿杰 | A kind of power cable equipment |
| CN108145213A (en) * | 2016-12-06 | 2018-06-12 | 江西昌河航空工业有限公司 | A kind of guided tooling for sheet member draw nest |
| CN108890216A (en) * | 2018-07-20 | 2018-11-27 | 中航沈飞民用飞机有限责任公司 | A kind of method in the qualified hole of craft composite material interlayer high-precision |
| CN109079580A (en) * | 2017-06-14 | 2018-12-25 | 南京晨伟机械设备制造有限公司 | A kind of ratchet-type drilling tool |
| US10556240B2 (en) | 2015-07-02 | 2020-02-11 | Serenity Data Security, Llc | Product verification for hard drive data destroying device |
| CN111230182A (en) * | 2020-03-16 | 2020-06-05 | 沈阳飞机工业（集团）有限公司 | Method for machining countersunk hole at joint of inner walls of thin-wall cavity part |
| US10926298B2 (en) | 2015-07-02 | 2021-02-23 | Serenity Data Security, Llc | Hard drive dismantling system |
| US11167384B2 (en) | 2015-07-02 | 2021-11-09 | Serenity Data Security, Llc | Hard drive non-destructive dismantling system |
| CN115365765A (en) * | 2022-07-29 | 2022-11-22 | 广联航空工业股份有限公司 | Deep hole machining method with position precision requirement |
| CN116851803A (en) * | 2023-08-24 | 2023-10-10 | 意特利（滁州）智能数控科技有限公司 | Machining method and machining device for countersunk holes |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159033A (en) * | 2011-03-28 | 2011-08-17 | 冠锋电子科技(梅州)有限公司 | Method for making flared hole on circuit board |
| CN103808236A (en) * | 2012-11-14 | 2014-05-21 | 兰州大学 | Blasthole measuring instrument |
| CN103808236B (en) * | 2012-11-14 | 2018-08-24 | 兰州大学 | Blast hole analyzer |
| CN103418814A (en) * | 2013-07-27 | 2013-12-04 | 桐城运城制版有限公司 | Drilling machine provided with center hole and used for thin plates |
| US10556240B2 (en) | 2015-07-02 | 2020-02-11 | Serenity Data Security, Llc | Product verification for hard drive data destroying device |
| US11167384B2 (en) | 2015-07-02 | 2021-11-09 | Serenity Data Security, Llc | Hard drive non-destructive dismantling system |
| US10926298B2 (en) | 2015-07-02 | 2021-02-23 | Serenity Data Security, Llc | Hard drive dismantling system |
| CN107186249A (en) * | 2016-03-14 | 2017-09-22 | 深圳光启高等理工研究院 | Processing method and component for carrying out counter boring to workpiece |
| CN108145213A (en) * | 2016-12-06 | 2018-06-12 | 江西昌河航空工业有限公司 | A kind of guided tooling for sheet member draw nest |
| CN109079580A (en) * | 2017-06-14 | 2018-12-25 | 南京晨伟机械设备制造有限公司 | A kind of ratchet-type drilling tool |
| CN109079580B (en) * | 2017-06-14 | 2023-11-17 | 南京晨伟机械设备制造有限公司 | Ratchet type drilling tool |
| CN107269223A (en) * | 2017-08-14 | 2017-10-20 | 朱鸿杰 | A kind of power cable equipment |
| CN108890216A (en) * | 2018-07-20 | 2018-11-27 | 中航沈飞民用飞机有限责任公司 | A kind of method in the qualified hole of craft composite material interlayer high-precision |
| CN111230182A (en) * | 2020-03-16 | 2020-06-05 | 沈阳飞机工业（集团）有限公司 | Method for machining countersunk hole at joint of inner walls of thin-wall cavity part |
| CN115365765A (en) * | 2022-07-29 | 2022-11-22 | 广联航空工业股份有限公司 | Deep hole machining method with position precision requirement |
| CN115365765B (en) * | 2022-07-29 | 2023-11-21 | 广联航空工业股份有限公司 | Deep hole machining method with position precision requirement |
| CN116851803A (en) * | 2023-08-24 | 2023-10-10 | 意特利（滁州）智能数控科技有限公司 | Machining method and machining device for countersunk holes |
| CN116851803B (en) * | 2023-08-24 | 2023-11-17 | 意特利（滁州）智能数控科技有限公司 | Machining method and machining device for countersunk holes |
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