CN103464806B - A kind of method of thread mill drilling and device - Google Patents
A kind of method of thread mill drilling and device Download PDFInfo
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- CN103464806B CN103464806B CN201210183678.9A CN201210183678A CN103464806B CN 103464806 B CN103464806 B CN 103464806B CN 201210183678 A CN201210183678 A CN 201210183678A CN 103464806 B CN103464806 B CN 103464806B
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Abstract
A kind of method of thread mill drilling, comprise the following steps: step a, location motherboard is processed: location motherboard is arc with CNC planer type milling machine, the extrados of location motherboard is identical with the curvature of the intrados of magneto outer rotor, the top of location motherboard is provided with the seam of the extrados protrusion along location motherboard, described location motherboard is provided with several pilot holes that at least one row longitudinally arrange, each pilot hole all radially runs through location motherboard, each magnet steel threaded hole lengthwise position one_to_one corresponding of a file on the lengthwise position of each pilot hole and magneto outer rotor, after adopting above-mentioned processing method, led to boring, tapping by the some pilot holes on the motherboard of location, machining accuracy is high, and is easy to operation, and process velocity is fast.
Description
Technical field
The present invention relates to method and the device of thread mill drilling in the manufacture of a kind of wind-driven generator, in the directly driven wind-powered magneto outer rotor of especially a kind of large scale, the processing method of magnet steel threaded hole and device.
Background technology
In the directly driven wind-powered magneto of external-rotor-type, the intrados array of usual outer rotor has several magnet steel, and magnet steel along the circumferential circular array of outer rotor, and is the distribution of some files along the direction being parallel to outer roller axial.
Usually, bonding magnetic steel at the inner circumferential surface of outer rotor, but is adopted in such a way, due to service life of glue and reliability not good, the service life of device entirety and reliability are all difficult to ensure.In order to improve the reliability of connection, usually the mode that outer rotor and magnet steel are threaded connection is carried out fastening.Concrete, first on outer rotor, radially, axially need offer some groups of uniform screws, and some bolts are set on magnet steel, the position one_to_one corresponding of bolt on magnet steel after the position of screw and assembling, coordinate magnet steel to be threaded with outer rotor by above-mentioned bolt, screw and locate.
Although the better reliability of above-mentioned syndeton, but because numerous screws radially, is axially distributed on outer rotor, the difficulty of location, boring is large, and is all hole on the face of cylinder, and therefore each screw is accurately located along axial, the circumference of outer rotor, difficulty of processing is large.
Existing main scheme is manual location of ruling, and adopts T-square or single-frame rules by monolateral positioning marking wrench work, then pasting magnet steel.Such method inefficiency, labour intensity are large and installation accuracy is poor.
Refer to Fig. 1, Fig. 2, now also has the scheme that a kind of operating efficiency increases, first outer rotor is placed on turntable, again several radial drilling machines are set in the periphery of outer rotor; radial drilling machine maintains static in the radial direction of outer rotor; drive outer rotor intermittent rotary to relevant position by turntable, then drive radial drilling machine radially-inwardly to process corresponding screw along outer rotor.Adopt such frock, though improve to some extent in working (machining) efficiency, labour intensity etc., but because radial drilling machine need be arranged on the outer radial periphery of outer rotor, not only take up room large, processing for large diameter outer rotor is particularly difficult, in addition, also there is the defect that number of devices is many, structure is numerous and jumbled, with high costs.
Summary of the invention
The technical problem that the present invention solves is the above-mentioned deficiency overcoming prior art, provide a kind of applied widely, structure simply for auxiliary positioning processing magnet steel the method for directly driven wind-powered magneto outer rotor magnet steel threaded hole processing and the device that close screw.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A method for thread mill drilling, comprises the following steps:
Step a, process location motherboard with CNC planer type milling machine:
Location motherboard is arc, the extrados of location motherboard is identical with the curvature of the intrados of magneto outer rotor, the top of location motherboard is provided with the seam of the extrados protrusion along location motherboard, described location motherboard is provided with several pilot holes that at least one row longitudinally arrange, each pilot hole all radially runs through location motherboard, each magnet steel threaded hole lengthwise position one_to_one corresponding of a file on the lengthwise position of each pilot hole and magneto outer rotor;
Step b, first location motherboard is arranged on the anti-drive end of magneto outer rotor:
The location extrados of motherboard and the intrados of magneto outer rotor fit tightly, the location seam of motherboard and the anti-drive end end face of magneto outer rotor are fitted, and the magnet steel threaded hole position one_to_one corresponding of a file on the pilot hole of locating on motherboard and magneto outer rotor;
Step c, the circumference of magneto outer rotor install several location motherboard, the columns of the pilot hole on each location motherboard is identical, be separated with magnet steel threaded hole between adjacent two location motherboards, between described adjacent two location motherboards, the columns of the magnet steel threaded hole at interval is identical with the columns of pilot hole on the motherboard of location;
Steps d, by being arranged at the rotary rig of magneto outer rotor central authorities, the magnet steel threaded hole corresponding to each pilot hole being holed, then carries out manual tapping;
Step e, described in step c adjacent two location motherboards between interval magnet steel threaded hole places install location motherboard;
Step f, repetition steps d, complete the processing of whole magnet steel threaded hole on magneto outer rotor.
After adopting above-mentioned processing method, led to boring, tapping by the some pilot holes on the motherboard of location, machining accuracy is high, and is easy to operation, and process velocity is fast; By the rotary rig being positioned over outer rotor center, each magnet steel threaded hole is holed one by one, tapping, process equipment size is little, cost is low, be particularly useful for major diameter outer rotor magnet steel threaded hole processing; Utilize anti-drive end end face that plane precision on magneto outer rotor is high as axial location datum level, magnet steel threaded hole precision is vertically accurate, ensures that magnet steel completes assembling smoothly.Closely connected by the inwall of extrados and the magneto outer rotor of locating motherboard, location motherboard stability better, and reduces the error that magnet steel threaded hole adds man-hour.
And, by step c and step e, compartment of terrain, circumferentially divide equally processing magnet steel threaded hole, with existing, along compared with inner peripheral surface by column the order mode of processing, significantly can reduce accumulated error, the situation that between the whole Kong Lieyu starter hole row that accumulated error especially can be avoided to cause, spacing difference is large, magnet steel is difficult to assembling.
It should be noted that:
The direction of magneto outer rotor axis is parallel to after above-mentioned " longitudinal direction " refers to assembling;
Above-mentioned " circumference " refers to the circumferencial direction of magneto outer rotor anti-drive end end face.
In step c and step e, be separated with magnet steel threaded hole between adjacent two location motherboards and refer to the position being positioned at magnet steel threaded hole to be processed on magneto outer rotor.
Preferably, before described steps d, carry out accurate adjustment by the circumferential position of following steps to adjacent two location motherboards:
Cd1, a location survey block is respectively set on two adjacent location motherboards, two location survey blocks locate two row pilot hole pin joints on motherboard, adjacent respectively with adjacent two, the opposite sides of two location survey blocks is provided with datum plane, and the size of the angle between the sagittal plane of a row pilot hole of each datum plane and this location survey block of pin joint equals adjacent two half of locating the central angle size between two row pilot holes on motherboard, adjacent;
Cd2, measure the spacing of two datum planes, and the position of two adjacent location motherboards is finely tuned.
Adopt said method to the string between adjacent two location motherboards apart from measuring, not only when measuring, two datum planes are parallel to each other, slide calliper rule isoline distance measuring tool can be directly utilized to measure, to measure the air line distance of two planes, calculate on adjacent two location motherboards, the central angle of two adjacent row pilot holes, measure easy to operate, precisely, through measuring, after fine setting, circumferential position accuracy often between adjacent two location motherboards is higher, location motherboard position error when mounted can be reduced, thus improve the processing of magneto outer rotor upper magnetic steel threaded hole, positioning precision.
Preferably, the columns of the pilot hole that described each location motherboard longitudinally arranges is more than or equal to two row, and the radial angle of two row pilot holes adjacent on the motherboard of location is equal with the radial angle of the magnet steel threaded hole of two files adjacent on magneto outer rotor.
Adopt such method, each location motherboard all can realize the processing of at least two row magnet steel threaded holes, and working (machining) efficiency is higher.
Preferably, described step e specifically comprises the following steps:
E1, by described in step c adjacent two location motherboards pull down;
At least one row pilot hole of the location motherboard that e2, step e1 pull down with the magnet steel threaded hole processed for origin reference location, adjacent two the magnet steel threaded hole column alignments of locating interval between motherboard described in location all the other each row pilot holes of motherboard and step c.
Because the radial angle of two row pilot holes adjacent on the motherboard of location is equal with the radial angle of the magnet steel threaded hole of two files adjacent on magneto outer rotor, therefore, after being located by the wherein row pilot hole on the motherboard of location and the magnet steel threaded hole processed, the position of the still unprocessed magnet steel threaded hole of another row on all the other adjacent pilot hole row i.e. corresponding magneto outer rotor on the motherboard of location, location conveniently, accurate.
Preferably, in described steps d, adopt screw tap to carry out tapping, the head of described screw tap is provided with lead, described lead and pilot hole matched in clearance.
Be different from prior art, the mode of chip removal wedge-shaped slot is set at the head of screw tap, the lead suitable with the internal diameter of pilot hole is set at the head of screw tap, makes screw tap axis consistent with the axis of magnet steel threaded hole, thus ensure that the radial machining accuracy of magnet steel threaded hole.
Preferably, in step b, in step c and step e, binder is provided with between the extrados of described location motherboard and magneto outer rotor, described binder comprises the first clamping part and the second clamping part, the extrados compact siro spinning technology of described first clamping part and magneto outer rotor, described second clamping part is arranged at the intrados side of location motherboard, described second clamping part has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt, after the anti-drive end end face of seam and magneto outer rotor is fitted, adjustment hold-down bolt will locate motherboard and magneto outer rotor compresses.
Adopt such method, exert pressure fastening by binder to magneto outer rotor and location motherboard, improve Assembly stability further, thus reduce mismachining tolerance, improve machining accuracy.
A kind of device of thread mill drilling, comprise location motherboard, described location motherboard is arc, the extrados of location motherboard is identical with the curvature of the intrados of magneto outer rotor, described location motherboard is longitudinally arranged with several pilot holes, each pilot hole all radially runs through location motherboard, the lengthwise position one_to_one corresponding of the magnet steel threaded hole on the position of pilot hole and magneto outer rotor.
Such processing unit (plant) auxiliary positioning is adopted to process magnet steel closing screw, because the extrados of locating motherboard is identical with the curvature of the intrados of magneto outer rotor, after assembling, location motherboard fits in the inwall of magneto outer rotor, positioning stablity, and by several pilot holes that location motherboard longitudinally arranges, holing, tapping time lead, ensure that magnet steel threaded hole radially, axial machining accuracy.
Preferably, the top of described location motherboard is provided with the seam protruded along extrados; Because the anti-drive end end face flatness precision after processing of magneto outer rotor is high, by fitting tightly along the seam of extrados protrusion and the anti-drive end end face of magneto outer rotor of locating motherboard during assembling, can ensure that location motherboard has excellent assembly precision.
Preferably, binder is provided with between the extrados of described arc and magneto outer rotor, described binder comprises the first clamping part and the second clamping part, the extrados compact siro spinning technology of described first clamping part and magneto outer rotor, described second clamping part is arranged at the intrados side of arc, described second clamping part has been disposed radially adjustment screw, and regulate in screw and be provided with hold-down bolt, described hold-down bolt is relative to the second clamping part moving radially along magneto outer rotor.Exert pressure fastening by binder to magneto outer rotor and location motherboard, improve Assembly stability further, thus reduce mismachining tolerance, improve machining accuracy.
Compared with prior art, the present invention has following beneficial effect:
1, led to boring, tapping by the some pilot holes on the motherboard of location, machining accuracy is high, and is easy to operation, and process velocity is fast;
2, by the rotary rig being positioned over outer rotor center, each magnet steel threaded hole is holed one by one, tapping, process equipment size is little, cost is low, be particularly useful for major diameter outer rotor magnet steel threaded hole processing;
3, utilize anti-drive end end face that plane precision on magneto outer rotor is high as axial location datum level, magnet steel threaded hole precision is vertically accurate, ensure that magnet steel completes assembling smoothly, and it is closely connected by the inwall of the extrados and magneto outer rotor of locating motherboard, location motherboard stability is better, and reduces the error that magnet steel threaded hole adds man-hour.
Accompanying drawing explanation
Fig. 1 is the main schematic diagram of directly driven wind-powered magneto outer rotor magnet steel threaded hole processing unit (plant) in prior art;
Fig. 2 is the top view of directly driven wind-powered magneto outer rotor magnet steel threaded hole processing unit (plant) in prior art;
Fig. 3 is the arrangement schematic diagram of directly driven wind-powered magneto outer rotor upper magnetic steel threaded hole;
Fig. 4 is the schematic diagram in the present invention's directly driven wind-powered magneto outer rotor upper magnetic steel threaded hole processing method after alinco assembled;
Fig. 5 is the structural representation of locating motherboard in the present invention;
Fig. 6 is the front view of locating motherboard in the present invention;
Fig. 7 is the side view of locating motherboard in the present invention;
Fig. 8 is the machining sketch chart of directly driven wind-powered magneto outer rotor magnet steel threaded hole in the present invention;
Fig. 9 is the close-up schematic view of part A in Fig. 8;
Figure 10 is the schematic diagram after processing magnet steel threaded hole in the present invention on directly driven wind-powered magneto outer rotor;
Figure 11 is the partial top view of Figure 10;
Figure 12 is the schematic diagram being positioned measurement in the present invention by location survey block;
Figure 13 is the close-up schematic view of part A in Figure 12;
Figure 14 is the schematic diagram that in the present invention, step e locates motherboard running fix path;
Figure 15 is the next view of Figure 14;
Figure 16 is the next view of Figure 15;
Figure 17 is the next view of Figure 16;
Figure 18 is the structural representation of existing screw tap;
Figure 19 is the structural representation of plug tap of the present invention;
Figure 20 is the processing mode schematic diagram of rotary rig.
Reference numeral is as follows: motherboard-1, location; Magneto outer rotor-2; Anti-drive end-the 2a of magneto outer rotor; Drive end-the 2b of magneto outer rotor; Magnet steel threaded hole-2c; Seam-3; Pilot hole-4; Rotary rig-5; Binder-6; First clamping part-6a; Second clamping part-6b; Hold-down bolt-6d; Screw tap-7; Lead-7a; Magnet steel-8; Location survey block-9; Datum plane--9a; Angle-α between the sagittal plane of one row pilot hole of datum plane and this location survey block of pin joint; Adjacent two central angle-β located between two row pilot holes on motherboards, adjacent.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiments of the present invention are not limited to following examples, and the various changes made under the prerequisite not departing from present inventive concept all belong within protection scope of the present invention.
Embodiment 1
Refer to Fig. 3 to Figure 20, a kind of method of thread mill drilling, comprises the following steps:
Step a, with CNC planer type milling machine process location motherboard 1:
Location motherboard 1 is arc, the extrados of location motherboard 1 is identical with the curvature of the intrados of magneto outer rotor 2, that is: during assembling, the extrados of location motherboard 1 can be closely connected with the intrados of magneto outer rotor 2, after mounting, the location extrados of motherboard 1 and the intrados of magneto outer rotor 2 are fitted; Identical with the curvature of the intrados of magneto outer rotor 2 owing to locating the extrados of motherboard 1, after assembling, location motherboard 1 fits in the intrados of magneto outer rotor 2, positioning stablity, accurate.
The top of location motherboard 1 is provided with the seam 3 of the extrados protrusion along location motherboard 1, the bottom of seam 3 is plane, and fit with the anti-drive end 2a end face of magneto outer rotor after mounting, in order to position longitudinal starting altitude of location motherboard 1, because the anti-drive end 2a end face of magneto outer rotor is adding man-hour, flatness precision is high, utilize the seam 3 of the extrados protrusion along location motherboard 1, fit tightly with the anti-drive end 2a end face of magneto outer rotor, can ensure that location motherboard 1 has excellent assembly precision.
Location motherboard 1 is provided with four row longitudinally arrange, several pilot holes 4, each pilot hole 4 all radially runs through location motherboard 1, each pilot hole 4 is all process with reference to the position of each magnet steel threaded hole 2c on work piece magneto outer rotor 2, each pilot hole 4 all runs through location motherboard 1 along the radial direction of location motherboard 1, the lengthwise position one_to_one corresponding of the magnet steel threaded hole 2c on the position of pilot hole 4 and magneto outer rotor 2, namely each pilot hole 4 is equal with the distance of the anti-drive end 2a end face of magneto outer rotor with magnet steel threaded hole 2c with the fore-and-aft distance of seam 3 lower surface, can ensure location motherboard 1 assemble in place after, guiding completes longitudinal direction, the location of circumference and boring.
Step b, first location motherboard 1 is arranged on the anti-drive end 2a of magneto outer rotor:
The longitudinal line of longitudinal line of pilot hole 4 each on first location motherboard 1 with arbitrary row magnet steel threaded hole 2c of magneto outer rotor 2 is alignd, and the intrados of the extrados of location motherboard 1 and magneto outer rotor 2 is fitted tightly, the seam 3 of location motherboard 1 is fitted with the anti-drive end 2a end face of magneto outer rotor, the lengthwise position one_to_one corresponding of the magnet steel threaded hole 2c of a file to be processed on the position of pilot hole 4 on the motherboard 1 of location and magneto outer rotor 2, is then located.
Step c, the circumference of magneto outer rotor 2 install nine location motherboards 1, each location motherboard 1 all there are four row pilot holes 4, on each row, the quantity of pilot hole 4 is identical, be separated with magnet steel threaded hole 2c between adjacent two location motherboards 1, and between adjacent two location motherboards 1, the columns of the magnet steel threaded hole 2c at interval is identical with the columns of pilot hole 4 on the motherboard 1 of location.
After completing steps c assembles, the circumference of magneto outer rotor 2 uniform, the position of 80 row magnet steel threaded hole 2c to be processed, after location motherboard 1 being installed by step b, step c, there are 40 row magnet steel threaded hole 2c corresponding with the pilot hole 4 on the motherboard 1 of location, and every two groups adjacent, to having in four row magnet steel threaded hole 2c of pilot hole 4, be separated with all four row to be processed and four row magnet steel threaded holes row of location motherboard 1 are not installed.
Steps d, by being arranged at the rotary rig 5 of magneto outer rotor 2 central authorities, the magnet steel threaded hole 2c corresponding to each pilot hole 4 being holed, then carries out manual tapping.Rotary rig 5 is arranged at the central authorities of magneto outer rotor 2, namely the rotating shaft of rotary rig 5 and magneto outer rotor 2 are coaxially arranged, and when the bit of rotary rig 5, keep the radial direction of drill bit and magneto outer rotor 2 in the same way.Before magnet steel threaded hole 2c is holed, the drill bit of rotary rig 5 is adjusted to the longitudinal direction corresponding with pilot hole 4 and circumferential position.When creeping into, drill bit, at the auxiliary lower accurate guide-localization of pilot hole 4, improves borehole accuracy and completes boring.After completing boring, in order to avoid screw tap 7 breaks in magnet steel threaded hole 2c, complete tapping in the mode of hand tapping.
Step e, described in step c adjacent two location motherboards 1 between interval magnet steel threaded hole 2c places install locate motherboard 1, after processing magnet steel threaded hole 2c by previous step, at the circumference of magneto outer rotor 2, the place to be processed of magnet steel threaded hole 2c, location motherboard 1 is installed, to realize guiding when holing.
Step f, repetition steps d, hole to the magnet steel threaded hole 2c corresponding to each pilot hole 4, then carry out manual tapping, complete the processing of whole magnet steel threaded hole 2c on magneto outer rotor 2.
In the present embodiment, circumferentially be distributed in magneto outer rotor 2 inwall, the magnet steel threaded hole 2c intending processing amounts to 80 row, each location motherboard 1 comprises four row pilot holes 4, therefore, when step c location motherboard 1 has assembled, amount to 10 location motherboards 1, corresponding 40 row magnet steel threaded hole 2c, simultaneously, remain 40 row magnet steel corresponding closing 10 the location motherboards 1 installed by step e in screw thread 2c hole, and guide, complete processing, after all magnet steel threaded hole 2c machine, magnet steel 8 by bolt and magnet steel threaded hole 2c fastening.
In all the other embodiments, be arranged at the columns of pilot hole 4 on the motherboard 1 of location, that longitudinally arrange, can according to be circumferentially distributed in magneto outer rotor 2 inwall, the difference of magnet steel threaded hole 2c columns of intending processing, can be two row, three row, five row or more, as long as after assembling some location motherboard 1, nonmagnetic steel threaded hole 2c row do not match with pilot hole 4, just repeat no more at this.
Embodiment 2
Refer to Figure 12 and Figure 13, the method for the present embodiment thread mill drilling, before described steps d, carries out accurate adjustment by the circumferential position of following steps to adjacent two location motherboards:
Cd1, a location survey block 9 is respectively set on two adjacent location motherboards 1, two location survey blocks 9 locate two row pilot hole 4 pin joints on motherboard 1, adjacent respectively with adjacent two, the opposite sides of two location survey blocks 9 is provided with datum plane 9a, and the size of the angle α between the sagittal plane of a row pilot hole 4 of each datum plane 9a and this location survey block 9 of pin joint equals adjacent two half of locating the central angle β size between two row pilot holes 4 on motherboard 1, adjacent;
In the present embodiment, central angles on adjacent two location motherboards 1 that step c installs, between adjacent two row pilot holes 4, contain two adjacent row pilot holes 4 and that not yet install location motherboard 1, four row magnet steel threaded hole 2c the arrange central angle angle summation of between two adjacent row pilot holes 4 four.
In the present embodiment, the size of the central angle corresponding to six row magnet steel threaded hole 2c be a row pilot hole 4 of 360 ° of ÷ 80 × 5=22.5 °, datum plane 9a and this location survey block 9 of pin joint sagittal plane between angle α be 11.25 °.By calculating or measuring on drawing, obtain the theoretical line distance of the datum plane 9a between adjacent two location motherboards 1.
Cd2, measure the spacing of two datum plane 9a, and locate compared with the theoretical line distance of the datum plane 9a between motherboard 1 with adjacent two that calculate or record on drawing, thus the position of two adjacent location motherboards 1 is finely tuned.
All the other steps refer to embodiment 1.
Embodiment 3
Refer to 14 to Figure 17, in the method for the present embodiment thread mill drilling, described step e specifically comprises the following steps:
E1, by described in step c adjacent two location motherboards 1 pull down;
E2, as shown in figure 14, the one row pilot hole 4 at the edge of the location motherboard 1 that step e1 pulls down circumferentially mobile 13.5 °, and with the magnet steel threaded hole 2c processed for benchmark is located by pin, as shown in figure 15, its excess-three row pilot hole 4 on this location motherboard 1 to be located in the four row magnet steel threaded hole 2c at interval between motherboard 1 with adjacent two described in step c, is alignd near three row magnet steel threaded hole 2c of this location motherboard 1.
Adopt said method that another location motherboard 1 is installed, as shown in figure 16, by another location motherboard 1 circumferentially mobile 4.5 °, as shown in figure 17, the magnet steel threaded hole 2c making each to be processed all has pilot hole 4 corresponding.
All the other steps refer to embodiment 2.
In all the other embodiments, when the columns of circumferentially movement after location motherboard 1 is pulled down can be selected arbitrarily under the prerequisite not exceeding hole number of columns on the motherboard 1 of location, arrange as long as it has initial locating hole and may correspond to magnet steel threaded hole 2c to be processed, just repeat no more at this.
Embodiment 4
Refer to Fig. 8 to Figure 11, in step b, the step c of the method for the present embodiment thread mill drilling and step e, in order to improve the extrados and the stability be connected between magneto outer rotor 2 that connect location motherboard 1 further, binder 6 is provided with, to exert pressure fastening to magneto outer rotor 2 and location motherboard 1 between location motherboard 1 and magneto outer rotor 2.
Concrete, binder 6 comprises the first clamping part 6a and the second clamping part 6b, the extrados compact siro spinning technology of the first clamping part 6a and magneto outer rotor 2, second clamping part 6b is arranged at the intrados side of location motherboard 1, second clamping part 6b has been disposed radially adjustment screw, regulates in screw and is provided with hold-down bolt 6d, after seam 3 and the anti-drive end 2a end face of magneto outer rotor are fitted, adjustment hold-down bolt 6d, radially compresses location motherboard 1 and magneto outer rotor 2.
The method of all the other thread mill drillings and step refer to embodiment 2.
Embodiment 5
Refer to Figure 19, in the method for the present embodiment thread mill drilling, step c adopts screw tap 7 to carry out tapping.
Be different from the traditional screw tap 7 shown in Figure 18, the head of the present embodiment plug tap 7 is provided with lead 7a, lead 7a and pilot hole 4 matched in clearance.The lead 7a suitable with the internal diameter of pilot hole 4 is set by the head at screw tap 7, makes screw tap 7 axis consistent with the axis of magnet steel threaded hole 2c, thus ensure that the radial machining accuracy of magnet steel threaded hole 2c.
The method of all the other thread mill drillings and step refer to embodiment 4.
Embodiment 6
Refer to Fig. 4 to Figure 11, a kind of device of thread mill drilling, comprise location motherboard 1, location motherboard 1 is arc, the extrados of location motherboard 1 is identical with the curvature of the intrados of magneto outer rotor 2, location motherboard 1 is longitudinally arranged with several pilot holes 4, and each pilot hole 4 all radially runs through location motherboard 1, the lengthwise position one_to_one corresponding of the magnet steel threaded hole 2c on the position of pilot hole 4 and magneto outer rotor 2; Such processing unit (plant) auxiliary positioning is adopted to process magnet steel threaded hole 2c, because the extrados of locating motherboard 1 is identical with the curvature of the intrados of magneto outer rotor 2, after assembling, location motherboard 1 fits in the intrados of magneto outer rotor 2, positioning stablity, and by several pilot holes 4 that location motherboard 1 longitudinally arranges, holing, tapping time lead, ensure that magnet steel threaded hole 2c radially, axial machining accuracy.
The method utilizing the device of the present embodiment thread mill drilling to assist magnet steel threaded hole 2c to process, refers to embodiment 1.
Embodiment 7
Refer to Fig. 4 to Figure 11, in the device of the present embodiment thread mill drilling, the top of location motherboard 1 is provided with the seam 3 protruded along extrados; Because the anti-drive end 2a end face flatness precision after processing of magneto outer rotor is high, seam 3 by protruding along the extrados of location motherboard 1 during assembling fits tightly with the anti-drive end 2a end face of magneto outer rotor, can ensure that location motherboard 1 has excellent assembly precision.
All the other structures refer to embodiment 6.
The method utilizing the device of the present embodiment thread mill drilling to assist magnet steel threaded hole 2c to process, refers to embodiment 1.
Embodiment 8
Refer to Fig. 4 to Figure 11, in the device of the present embodiment thread mill drilling, binder 6 is provided with between the extrados of arc and magneto outer rotor 2, binder 6 comprises the first clamping part 6a and the second clamping part 6b, the extrados compact siro spinning technology of the first clamping part 6a and magneto outer rotor 2, second clamping part 6b is arranged at the intrados side of arc, second clamping part 6b has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt 6d, hold-down bolt 6d is relative to the second clamping part 6b moving radially along magneto outer rotor 2.Exert pressure fastening by binder 6 pairs of magneto outer rotors 2 and location motherboard 1, improve Assembly stability further, thus reduce mismachining tolerance, improve machining accuracy.
All the other structures refer to embodiment 7.
The method utilizing the device of the present embodiment thread mill drilling to assist magnet steel threaded hole 2c to process, refers to embodiment 2.
By reference to the accompanying drawings embodiments of the invention are described in detail above; but the present invention is not limited to above-described embodiment; can also make various change in the ken that those of ordinary skill in the art possess, these changes all belong within protection scope of the present invention.
Claims (9)
1. a method for thread mill drilling, is characterized in that, comprises the following steps:
Step a, with CNC planer type milling machine process location motherboard (1):
Location motherboard (1) is arc, the extrados of location motherboard (1) is identical with the curvature of the intrados of magneto outer rotor (2), the top of location motherboard (1) is provided with the seam (3) of the extrados protrusion along location motherboard (1), described location motherboard (1) is provided with several pilot holes (4) that at least one row longitudinally arrange, each pilot hole (4) all radially runs through location motherboard (1), each magnet steel threaded hole (2c) lengthwise position one_to_one corresponding of a file on the lengthwise position of each pilot hole (4) and magneto outer rotor (2),
Step b, first location motherboard (1) is arranged on the anti-drive end (2a) of magneto outer rotor:
The extrados of location motherboard (1) and the intrados of magneto outer rotor (2) fit tightly, the seam (3) of location motherboard (1) is fitted with anti-drive end (2a) end face of magneto outer rotor, and locates magnet steel threaded hole (2c) the position one_to_one corresponding of the pilot hole (4) on motherboard (1) and a file on magneto outer rotor (2);
Step c, the circumference of magneto outer rotor (2) install several location motherboard (1), the columns of the pilot hole (4) on each location motherboard (1) is identical, be separated with magnet steel threaded hole (2c) between adjacent two location motherboard (1), between described adjacent two location motherboard (1), the columns of the magnet steel threaded hole (2c) at interval is identical with the columns of the upper pilot hole (4) in location motherboard (1);
Steps d, by be arranged at magneto outer rotor (2) central authorities rotary rig (5), the magnet steel threaded hole (2c) corresponding to each pilot hole (4) is holed, then carries out manual tapping;
Step e, between adjacent two location motherboard (1) described in step c, location motherboard (1) is installed at magnet steel threaded hole (2c) places at interval;
Step f, repetition steps d, complete the processing of the upper whole magnet steel threaded hole (2c) of magneto outer rotor (2).
2. the method for thread mill drilling according to claim 1, is characterized in that, before described steps d, carries out accurate adjustment by the circumferential position of following steps to adjacent two location motherboards:
Cd1, each a location survey block (9) is set two adjacent location motherboards (1) are upper, two location survey blocks (9) are located on motherboard (1) with adjacent two respectively, two adjacent row pilot hole (4) pin joints, the opposite sides of two location survey blocks (9) is provided with datum plane (9a), the size of the angle (α) between the sagittal plane of one row pilot hole (4) of each datum plane (9a) and this location survey block (9) of pin joint equals adjacent two and locates on motherboard (1), the half of central angle (β) size between two adjacent row pilot holes (4),
Cd2, measure the spacing of two datum planes (9a), and the position of two adjacent location motherboards (1) is finely tuned.
3. the method for thread mill drilling according to claim 2, it is characterized in that: the columns of the pilot hole (4) that described each location motherboard (1) longitudinally arranges is more than or equal to two row, the radial angle of the upper two adjacent row pilot holes (4) in location motherboard (1) is equal with the radial angle of the magnet steel threaded hole (2c) of upper adjacent two files of magneto outer rotor (2).
4. the method for thread mill drilling according to claim 3, is characterized in that, described step e specifically comprises the following steps:
E1, by described in step c adjacent two location motherboard (1) pull down;
At least one row pilot hole (4) of the location motherboard (1) that e2, step e1 pull down with the magnet steel threaded hole (2c) processed for origin reference location, all the other each row pilot holes (4) of location motherboard (1) and adjacent two magnet steel threaded hole (2c) column alignments of locating interval between motherboard (1) described in step c.
5. the method for the thread mill drilling according to claim arbitrary in Claims 1-4, it is characterized in that: in described steps d, adopt screw tap (7) to carry out tapping, the head of described screw tap (7) is provided with lead (7a), described lead (7a) and pilot hole (4) matched in clearance.
6. the method for the thread mill drilling according to claim arbitrary in Claims 1-4, it is characterized in that: in step b, in step c and step e, binder (6) is provided with between the extrados of described location motherboard (1) and magneto outer rotor (2), described binder (6) comprises the first clamping part (6a) and the second clamping part (6b), the extrados compact siro spinning technology of described first clamping part (6a) and magneto outer rotor (2), described second clamping part (6b) is arranged at the intrados side of location motherboard (1), described second clamping part (6b) has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt (6d), after seam (3) and anti-drive end (2a) end face of magneto outer rotor are fitted, adjustment hold-down bolt (6d) will be located motherboard (1) and be compressed with magneto outer rotor (2).
7. the device of a thread mill drilling, it is characterized in that: comprise location motherboard (1), described location motherboard (1) is arc, the extrados of location motherboard (1) is identical with the curvature of the intrados of magneto outer rotor (2), described location motherboard (1) is longitudinally arranged with several pilot holes (4), each pilot hole (4) all radially runs through location motherboard (1), the lengthwise position one_to_one corresponding of the magnet steel threaded hole (2c) on the position of pilot hole (4) and magneto outer rotor (2).
8. the device of thread mill drilling according to claim 7, is characterized in that: the top of described location motherboard (1) is provided with the seam (3) protruded along extrados.
9. the device of thread mill drilling according to claim 8, it is characterized in that: between the extrados of described arc and magneto outer rotor (2), be provided with binder (6), described binder (6) comprises the first clamping part (6a) and the second clamping part (6b), the extrados compact siro spinning technology of described first clamping part (6a) and magneto outer rotor (2), described second clamping part (6b) is arranged at the intrados side of arc, described second clamping part (6b) has been disposed radially adjustment screw, regulate in screw and be provided with hold-down bolt (6d), described hold-down bolt (6d) is relative to the second clamping part (6b) moving radially along magneto outer rotor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210183678.9A CN103464806B (en) | 2012-06-06 | 2012-06-06 | A kind of method of thread mill drilling and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210183678.9A CN103464806B (en) | 2012-06-06 | 2012-06-06 | A kind of method of thread mill drilling and device |
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| CN103464806B true CN103464806B (en) | 2015-09-16 |
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| CN105665791B (en) * | 2014-11-17 | 2018-07-13 | 昌河飞机工业（集团）有限责任公司 | A kind of bushing plate component and the method that inserts is quickly positioned and assembled using the component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393673Y (en) * | 1999-09-09 | 2000-08-30 | 天津市华特包装机械有限责任公司第一分公司 | Series drill jig for universal flanges |
| DE20311204U1 (en) * | 2003-07-22 | 2003-09-11 | Reichhart Friedrich | Jig for boring large diameter holes in pipe duct is supported on two pairs of angles slides and has a magnetic grip for the boring tool |
| CN201361732Y (en) * | 2009-02-26 | 2009-12-16 | 天津赛瑞机器设备有限公司 | Boring tool used for processing threaded bottom hole on faceplate of wind power generation booster frame |
| CN202763134U (en) * | 2012-06-06 | 2013-03-06 | 东方电气集团东方电机有限公司 | Device for processing threaded holes |
-
2012
- 2012-06-06 CN CN201210183678.9A patent/CN103464806B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2393673Y (en) * | 1999-09-09 | 2000-08-30 | 天津市华特包装机械有限责任公司第一分公司 | Series drill jig for universal flanges |
| DE20311204U1 (en) * | 2003-07-22 | 2003-09-11 | Reichhart Friedrich | Jig for boring large diameter holes in pipe duct is supported on two pairs of angles slides and has a magnetic grip for the boring tool |
| CN201361732Y (en) * | 2009-02-26 | 2009-12-16 | 天津赛瑞机器设备有限公司 | Boring tool used for processing threaded bottom hole on faceplate of wind power generation booster frame |
| CN202763134U (en) * | 2012-06-06 | 2013-03-06 | 东方电气集团东方电机有限公司 | Device for processing threaded holes |
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| CN103464806A (en) | 2013-12-25 |
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