CN103464807A - Method and device for processing threaded holes in combination way - Google Patents
Method and device for processing threaded holes in combination way Download PDFInfo
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- CN103464807A CN103464807A CN2012101839240A CN201210183924A CN103464807A CN 103464807 A CN103464807 A CN 103464807A CN 2012101839240 A CN2012101839240 A CN 2012101839240A CN 201210183924 A CN201210183924 A CN 201210183924A CN 103464807 A CN103464807 A CN 103464807A
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Abstract
The invention discloses a method for processing threaded holes in a combination way. The method comprises the following step of step a, processing a locating mother board (1) and a locating guide board (8) by a CNC (Computer Numerical Control) planer type milling machine, wherein the locating mother board (1) and the locating guide board (8) are both arc-shaped boards, the curvatures of the outer arc-shaped surfaces of the locating mother board (1) and the locating guide board (8) are both equal to the curvature of the inner arc-shaped surface of a permanent magnet generator outer rotor (2), and the top part of the locating mother board (1) is provided with a seam allowance (3) which is bulged along the outer arc-shaped surface of the locating mother board (1). After the method disclosed by the invention is adopted, hole drilling and thread tapping can be guided through a plurality of guide holes in the locating mother board, the processing accuracy is high, the operation is easy, and the processing speed is fast.
Description
Technical field
The present invention relates to method and the device of combined type thread mill drilling in 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, usually the intrados array of outer rotor has several magnet steel, and magnet steel is along the circumferential circular array of outer rotor, and is some files along the direction that is parallel to outer roller axial and distributes.
Usually, bonding magnetic steel is at the inner circumferential surface of outer rotor, but adopts in such a way, because service life and the reliability of glue are not good, installs whole service life and reliability and all is difficult to guarantee.In order to improve the reliability of connection, the mode usually outer rotor and magnet steel are threaded connection is carried out fastening.Concrete, at first need on outer rotor, radially, axially offer some groups of uniform screws, and some bolts are set on magnet steel, the position of screw is corresponding one by one with the position of bolt on magnet steel after assembling, by above-mentioned bolt, screw, coordinates location that magnet steel is threaded with outer rotor.
Although the better reliability of above-mentioned syndeton, but because numerous screws radially, axially is distributed on outer rotor, the difficulty of location, boring is large, and is all to hole on the face of cylinder, so each screw is large along axial, circumferential accurately location, the difficulty of processing of outer rotor.
Existing main scheme is manual line location, 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, the scheme that now also has a kind of operating efficiency to increase, at first outer rotor is placed on turntable, in the periphery of outer rotor, several radial drilling machines are set again; radial drilling machine radially maintains static outer rotor; by turntable, drive the outer rotor intermittent rotary to relevant position, then drive radial drilling machine radially inwardly to process corresponding screw along outer rotor.Adopt such frock, though improve to some extent at aspects such as working (machining) efficiency, labour intensity, 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 to overcome the above-mentioned deficiency of prior art, provide a kind of applied widely, simple in structure for auxiliary positioning processing magnet steel the method and the device that close the combined type thread mill drilling of screw.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of method of combined type thread mill drilling comprises the following steps:
Step a, with CNC planer type milling machine, process location motherboard and positioning guiding plate:
Location motherboard and positioning guiding plate are arc, and the extrados of the extrados of location motherboard, positioning guiding plate is all identical with the curvature of the intrados of magneto outer rotor, and the top of location motherboard is provided with along the seam of the extrados protrusion of locating motherboard; Described location motherboard longitudinally is arranged with at least two pilot holes, on the motherboard of described location, the position of pilot hole is corresponding one by one with the lengthwise position of at least two magnet steel threaded holes of the anti-drive end of contiguous magneto outer rotor, and each pilot hole all radially runs through the location motherboard;
Described positioning guiding plate longitudinally is arranged with several pilot holes, and the position that on described positioning guiding plate, all the other magnet steel threaded holes are vertically gone up with the magneto outer rotor in the position of pilot hole is corresponding one by one;
The upper end of positioning guiding plate is fixedly installed connector, and at least two holes that are located by connecting are arranged on described connector, and the position in the described hole that is located by connecting is corresponding one by one with the lengthwise position of at least two pilot holes of motherboard lower end, location;
Step b, first location motherboard is arranged on to the anti-drive end of magneto outer rotor:
The extrados of location motherboard and the intrados of magneto outer rotor fit tightly, the anti-drive end end face laminating of seam and the magneto outer rotor of location motherboard, the position that makes to locate pilot hole on motherboard is corresponding one by one with the position of at least two magnet steel threaded holes on a file of the anti-drive end that is close to the magneto outer rotor;
Step c, at several location motherboards of the circumferential installation of magneto outer rotor, the columns of the pilot hole on each location motherboard is identical, be separated with the magnet steel threaded hole between 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 positioning guiding plate be arranged on the location motherboard on:
The intrados of the extrados of positioning guiding plate and magneto outer rotor fits tightly, pilot hole on be located by connecting hole and location motherboard on the pin joint connector, the position of all the other the magnet steel threaded holes on making pilot hole and being positioned at magneto outer rotor one file is corresponding one by one;
Step e, boring, tapping:
By being arranged at the rotary rig of magneto outer rotor central authorities, the corresponding magnet steel threaded hole of each pilot hole is holed, then carry out manual tapping;
Step f, between adjacent two the location motherboards described in step c, the location motherboards are installed at the magnet steel threaded hole places at interval;
Step g, repeating step d and step e, complete all processing of magnet steel threaded hole on the magneto outer rotor.
After adopting above-mentioned processing method, some pilot holes by location on motherboard are to boring, tapping is led, machining accuracy is high, and easy operating, process velocity is fast, and combine with positioning guiding plate by the location motherboard, utilize the location motherboard after anti-drive end one side of magneto outer rotor processes at least two starter hole for the positioning guiding plate location, complete the auxiliary positioning of the some magnet steel threaded holes of longitudinally arranging in back by positioning guiding plate, holed one by one again, tapping, the structure of locating motherboard is simplified more, the processing unit (plant) overall dimensions is less, be easy to take in, transportation, not only be easy to processing, and saving cost, reduce to process the gross weight of apparatus.
Separately, the rotary rig by being positioned over the outer rotor center to each magnet steel threaded hole holed one by one, tapping, the process equipment size is little, cost is low, is particularly useful for the magnet steel threaded hole processing of major diameter outer rotor;
Utilize anti-drive end end face that on the magneto outer rotor, plane precision is high as the axial location datum level, magnet steel threaded hole precision vertically is accurate, guarantees that magnet steel completes assembling smoothly;
The inwall of extrados and magneto outer rotor by the location motherboard is closely connected, locates motherboard stability better, and reduces the error that the magnet steel threaded hole adds man-hour.
It should be noted that:
Above-mentioned " vertically " refers to after assembling the direction that is parallel to magneto outer rotor axis;
Above-mentioned " circumferentially " refers to the circumferencial direction of magneto outer rotor anti-drive end end face.
Preferably, before described step e, by following steps, adjacent two circumferential positions of locating motherboards are carried out to accurate adjustment:
De1, on two adjacent location motherboards, a location survey piece respectively is set, two location survey pieces respectively with adjacent two location motherboards on, adjacent two row pilot hole pin joints, the opposite sides of two location survey pieces is provided with datum plane, the size of the angle between the sagittal plane of a row pilot hole of this location survey piece of each datum plane and pin joint equals on adjacent two location motherboards, the central angle size between adjacent two row pilot holes half;
De2, measure the spacing of two datum planes, and the position of two adjacent location motherboards is finely tuned.
Adopt said method to be measured the string distance between adjacent two location motherboards, not only when measuring, two datum planes are parallel to each other, can directly utilize the slide calliper rule isoline to be measured apart from measuring tool, to measure the air line distance on 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 between every adjacent two location motherboards is higher, can reduce to locate motherboard position error when mounted, thereby improve the processing of magneto outer rotor upper magnetic steel threaded hole, positioning precision.
Preferably, described respectively the location on motherboard is provided with at least two row pilot holes, and on the motherboard of location, the radially angle of two adjacent row pilot holes equates with the radially angle of the magnet steel threaded hole of adjacent two files on the magneto outer rotor.
Adopt such method, each location motherboard all can be realized the processing of at least two row magnet steel threaded holes, and working (machining) efficiency is higher.
Preferably, described step f specifically comprises the following steps:
F1, by step c described adjacent two the location motherboards pull down;
It is origin reference location that at least one row pilot hole of the location motherboard that f2, step f1 pull down be take the magnet steel threaded hole processed, all the other each row pilot holes of location motherboard and adjacent two the magnet steel threaded hole column alignments of locating interval between motherboards described in step c.
Because the radially angle of locating two row pilot holes adjacent on motherboard equates with the radially angle of the magnet steel threaded hole of adjacent two files on the magneto outer rotor, therefore, after locating by the wherein row pilot hole on the motherboard of location and the magnet steel threaded hole processed, on the motherboard of location, all the other adjacent pilot hole row are that on corresponding magneto outer rotor, another is listed as the still position of unprocessed magnet steel threaded hole, and location conveniently, precisely.
Preferably, in described step e, 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, head at screw tap arranges the mode of chip removal with wedge-shaped slot, the suitable lead at the internal diameter of the head setting of screw tap and pilot hole, make the screw tap axis consistent with the axis of magnet steel threaded hole, thereby guaranteed the radially machining accuracy of magnet steel threaded hole.
Preferably, at step b, in step c and step e, be provided with binder between the extrados of described positioning guiding plate and magneto outer rotor, described binder comprises the first clamping part and the second clamping part, described the first clamping part closely is connected with the extrados of magneto outer rotor, described the second clamping part is arranged at intrados one side of positioning guiding plate, described the second clamping part has been disposed radially the adjusting screw, regulate in screw and be provided with hold-down bolt, after the laminating of the upper surface of seam and magneto outer rotor, adjusting hold-down bolt exerts pressure fastening by positioning guiding plate and magneto outer rotor.
By binder, magneto outer rotor and positioning guiding plate are exerted pressure fastening, further improve Assembly stability, thereby reduce mismachining tolerance, improve machining accuracy.
A kind of device of combined type thread mill drilling, comprise the 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 longitudinally is arranged with several pilot holes, each pilot hole all radially runs through the location motherboard, and the position of pilot hole is corresponding with the lengthwise position of magnet steel threaded hole on the magneto outer rotor.Adopt such processing unit (plant) auxiliary positioning processing magnet steel closing screw, because the extrados of location motherboard is identical with the curvature of the intrados of magneto outer rotor, after assembling, the location motherboard fits in the inwall of magneto outer rotor, positioning stablity, and by several pilot holes of longitudinally arranging on the motherboard of location, in boring, led during tapping, guaranteed the 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 flatness precision of anti-drive end end face after processing of magneto outer rotor is high, locate by edge seam that the extrados of motherboard protrudes during assembling and the anti-drive end end face of magneto outer rotor fits tightly, can guarantee to locate motherboard and there is good assembly precision.
Preferably, on the motherboard of described location, the quantity of pilot hole is at least two, and the pilot hole on the motherboard of described location is corresponding one by one with the lengthwise position of at least two magnet steel threaded holes of contiguous magneto outer rotor anti-drive end;
Also comprise positioning guiding plate, described positioning guiding plate is arc, and the extrados of positioning guiding plate is identical with the curvature of the intrados of magneto outer rotor; Described positioning guiding plate longitudinally is arranged with several pilot holes, and on described positioning guiding plate, the position of pilot hole is corresponding one by one with the lengthwise position of all the other magnet steel threaded holes on magneto outer rotor one file;
The upper end of positioning guiding plate is fixedly installed connector, positioning guiding plate is located motherboard and is connected by connector, the outside of described connector is identical with the intrados curvature of location motherboard, at least two holes that are located by connecting are arranged on described connector, and the position in the described hole that is located by connecting is corresponding one by one with the lengthwise position of at least two pilot holes of motherboard lower end, location.
By flat location motherboard, with the positioning guiding plate of strip, combine, utilize the location motherboard after anti-drive end one side of magneto outer rotor processes at least two starter hole for the positioning guiding plate location, complete the auxiliary positioning of the some magnet steel threaded holes of longitudinally arranging in back by positioning guiding plate, holed one by one again, tapping, the structure of locating motherboard is simplified more, not only be easy to processing, and the gross weight of saving cost, reducing to process apparatus.
Preferably, be provided with binder between the extrados of described arc and magneto outer rotor, described binder comprises the first clamping part and the second clamping part, described the first clamping part closely is connected with the extrados of magneto outer rotor, described the second clamping part is arranged at intrados one side of arc, described the second clamping part has been disposed radially the adjusting screw, regulates in screw and is provided with hold-down bolt, and described hold-down bolt is moving radially along the magneto outer rotor with respect to the second clamping part.By binder, magneto outer rotor and location motherboard are exerted pressure fastening, further improve Assembly stability, thereby reduce mismachining tolerance, improve machining accuracy.
Compared with prior art, the invention has the beneficial effects as follows:
1, by the some pilot holes on location motherboard and positioning guiding plate, boring, tapping are led, machining accuracy is high, and easy operating, and process velocity is fast;
2, by the rotary rig that is positioned over the outer rotor center to each magnet steel threaded hole holed one by one, tapping, the process equipment size is little, cost is low, is particularly useful for the magnet steel threaded hole processing of major diameter outer rotor;
3, utilize anti-drive end end face that on the magneto outer rotor, plane precision is high as the axial location datum level, magnet steel threaded hole precision vertically is accurate, guarantee that magnet steel completes assembling smoothly, and closely connected by the inwall of the location extrados of motherboard and magneto outer rotor, location motherboard stability is better, and reduces the error that the magnet steel threaded hole adds man-hour.
The accompanying drawing explanation
The main schematic diagram that Fig. 1 is directly driven wind-powered magneto outer rotor magnet steel threaded hole processing unit (plant) in prior art;
The top view that Fig. 2 is directly driven wind-powered magneto outer rotor magnet steel threaded hole processing unit (plant) in prior art;
The schematic diagram of arranging that Fig. 3 is directly driven wind-powered magneto outer rotor upper magnetic steel threaded hole;
Fig. 4 is the schematic diagram after alinco assembled in the directly driven wind-powered magneto outer rotor of the present invention upper magnetic steel threaded hole processing method;
The structural representation that Fig. 5 is location motherboard in the present invention;
The front view that Fig. 6 is location motherboard in the present invention;
The side view that Fig. 7 is location motherboard in the present invention;
The machining sketch chart that Fig. 8 is Combined magneto generator outer rotor magnet steel threaded hole in the present invention;
The local enlarged diagram that Fig. 9 is A part in Fig. 8;
The schematic diagram that Figure 10 is a kind of embodiment of processing of Combined magneto generator outer rotor magnet steel threaded hole in the present invention;
The partial top view that Figure 11 is Figure 10;
Figure 12 positions the schematic diagram of measurement by the location survey piece in the present invention;
The local enlarged diagram that Figure 13 is A part in Figure 12;
The schematic diagram that Figure 14 is motherboard running fix path, step e location in the present invention;
The next view that Figure 15 is Figure 14;
The next view that Figure 16 is Figure 15;
The next view that Figure 17 is Figure 16;
Figure 18 is the structural representation of existing screw tap;
The structural representation that Figure 19 is plug tap of the present invention;
The processing mode schematic diagram that Figure 20 is rotary rig;
The structural representation that Figure 21 is positioning guiding plate in the present invention.
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; The first clamping part-6a; The second clamping part-6b; Hold-down bolt-6d; Screw tap-7; Lead-7a; Positioning guiding plate-8; Connector-9; Hole-9a is located by connecting; Magnet steel-10; Location survey piece-11; Datum plane--11a; Angle-α between the sagittal plane of one row pilot hole of this location survey piece of datum plane and pin joint; On adjacent two location motherboards, the central angle-β between adjacent two row pilot holes.
The specific embodiment
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, within the various variations of making under the prerequisite that does not break away from aim of the present invention all belong to protection scope of the present invention.
Refer to Fig. 3 to Figure 21, a kind of method of combined type thread mill drilling comprises the following steps:
Step a, with CNC planer type milling machine, process location motherboard 1 and positioning guiding plate 8:
Because the extrados of extrados, the positioning guiding plate 8 of location motherboard 1 is all identical with the curvature of the intrados of magneto outer rotor 2, after assembling, location motherboard 1 and positioning guiding plate 8 all fit in the intrados of magneto outer rotor 2, positioning stablity, accurate.
The top of location motherboard 1 is provided with the seam 3 protruded along the extrados of location motherboard 1, the bottom of seam 3 is plane, and with the anti-drive end 2a end face of magneto outer rotor, fit after assembling, with the vertical starting altitude to location motherboard 1, position, because the anti-drive end 2a end face of magneto outer rotor is adding man-hour, the flatness precision is high, utilize edge to locate the seam 3 of the extrados protrusion of motherboard 1, fit tightly with the anti-drive end 2a end face of magneto outer rotor, can guarantee to locate motherboard 1 and there is good assembly precision.
After longitudinally orienting the position of two magnet steel threaded hole 2c by the pilot hole 4 of location motherboard 1, using above-mentioned two pilot holes 4 as the benchmark of follow-up location, guiding, and be connected with positioning guiding plate 8.
Positioning guiding plate 8 longitudinally is arranged with several pilot holes 4, after positioning guiding plate 8 is in place, on positioning guiding plate 8, the position of pilot hole 4 is corresponding one by one with the lengthwise position of magneto outer rotor 2 vertically upper all the other magnet steel threaded hole 2c, with in subsequent step, complete guiding and the processing of all the other magnet steel threaded hole 2c on file.
Step b, first location motherboard 1 is arranged on to the anti-drive end 2a of magneto outer rotor:
Vertical line of each pilot hole 4 on first location motherboard 1 is alignd with vertical line of arbitrary row magnet steel threaded hole 2c of magneto outer rotor 2, and make to locate the extrados of motherboard 1 and the intrados of magneto outer rotor 2 fits tightly, the anti-drive end 2a end face laminating of the seam 3 of location motherboard 1 and magneto outer rotor;
Concrete, at first, make to locate the extrados of motherboard 1 and the intrados of magneto outer rotor 2 fits tightly, the seam 3 of location motherboard 1 is fitted with the anti-drive end 2a end face of magneto outer rotor, it is corresponding one by one that the position that will locate again two pilot holes 4 on motherboard 1 is adjusted to the position of two magnet steel threaded hole 2c on the file with the anti-drive end 2a of contiguous magneto outer rotor, guarantees to locate motherboard circumferentially and vertically accurately locating along magneto outer rotor 2.
Step c, at nine location motherboards 1 of the circumferential installation of magneto outer rotor 2, on each location motherboard 1, four row pilot holes 4 are all arranged, the quantity that respectively lists pilot hole 4 is identical, be separated with magnet steel threaded hole 2c between 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 assembling, position at circumferential uniform, the 80 row magnet steel threaded hole 2c to be processed of magneto outer rotor 2, after by step b, step c, location motherboard 1 being installed, 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, in the four row magnet steel threaded hole 2c that pilot hole 4 should be arranged, be separated with the to be processed and four row magnet steel threaded holes row that location motherboard 1 is installed of four row between all.
Steps d, by positioning guiding plate 8 be arranged on the location motherboard 1 on:
The connector 9 of positioning guiding plate 8 by its upper end and step b, and step c in pilot hole 4 pin joints on the location motherboard 1 installed, complete the assembling of positioning guiding plate 8, and the extrados of positioning guiding plate 8 and the intrados of magneto outer rotor 2 are fitted tightly, specific as follows:
First the intrados of the extrados of positioning guiding plate 8 and magneto outer rotor 2 is fitted tightly, connector 9 is fixedly connected on positioning guiding plate 8, hole 9a and the location pilot hole 4 on motherboard 1 pin joint one by one that is located by connecting, make pilot hole 4 corresponding one by one with the position of all the other magnet steel threaded hole 2c on magneto outer rotor 2 one files;
Mutually combine with positioning guiding plate 8 by location motherboard 1, realize the correspondence one by one of the whole magnet steel threaded hole 2c position on file on magneto outer rotor 2.
Step e, boring, tapping:
By being arranged at the rotary rig 5 of magneto outer rotor 2 central authorities, to the corresponding magnet steel threaded hole of each pilot hole 4,2c is holed, and then carries out manual tapping.
After completing boring, for fear of screw tap 7, break in magnet steel threaded hole 2c, in the mode of hand tapping, complete tapping.
Step f, between adjacent two the location motherboards 1 described in step c, motherboards 1 install are located at the magnet steel threaded hole 2c places at interval, after processing magnet steel threaded hole 2c by the preorder step, magneto outer rotor 2 circumferentially, the place to be processed of magnet steel threaded hole 2c, location motherboard 1 is installed, the guiding during with realization boring.
Step g, repeating step d, and step e, to the corresponding magnet steel threaded hole of each pilot hole 4,2c is holed, and then carries out manual tapping, completes all processing of magnet steel threaded hole 2c on magneto outer rotor 2.
After completing above-mentioned steps, magnet steel 10 can be matched with magnet steel threaded hole 2c by screw, be fixed on magneto outer rotor 2 inner surfaces.
In the present embodiment, edge circumferentially is distributed in magneto outer rotor 2 inwalls, the magnet steel threaded hole 2c that intends processing amounts to 80 row, comprise four row pilot holes 4 on each location motherboard 1, 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 handles and close 10 location motherboards 1 that install by step e in screw thread 2c hole, and positioning guiding plate 8 correspondences, and guiding, complete processing, after all magnet steel threaded hole 2c machine, magnet steel 8 can be fastening by bolt and magnet steel threaded hole 2c.
In all the other embodiments, each locates the columns of the pilot hole 4 on motherboard 1, according to the difference along circumferentially being distributed in magnet steel threaded hole 2c columns magneto outer rotor 2 inwalls, plan processing, can be two row, three row, five row or more, as long as after the some location of assembling motherboard 1, nonmagnetic steel threaded hole 2c row do not get final product with pilot hole 4 pairings, at this, just repeat no more.
Adopt the processing method of the present embodiment, by the 4 pairs of borings of some pilot holes on the motherboard 1 of location, tapping is led, machining accuracy is high, and easy operating, process velocity is fast, and combine with positioning guiding plate 8 by location motherboard 1, first utilize location motherboard 1 after the anti-drive end 2a of magneto outer rotor mono-side processes at least two starter hole for positioning guiding plate 8 location, complete the auxiliary positioning of the some magnet steel threaded hole 2c that longitudinally arrange in back by positioning guiding plate 8, holed one by one again, tapping, the structure of locating motherboard 1 is simplified more, the processing unit (plant) overall dimensions is less, be easy to take in, transportation, not only be easy to processing, and saving cost, reduce to process the gross weight of apparatus.
Separately, by 5 couples of each magnet steel threaded hole 2c of rotary rig that are positioned over magneto outer rotor 2 centers holed one by one, tapping, the process equipment size is little, cost is low, is particularly useful for the magnet steel threaded hole 2c processing of major diameter outer rotor;
Utilize anti-drive end end face that on magneto outer rotor 2, plane precision is high as the axial location datum level, magnet steel threaded hole 2c precision vertically is accurate, guarantees that magnet steel completes assembling smoothly;
The inwall of extrados and magneto outer rotor 2 by location motherboard 1 is closely connected, locates motherboard 1 stability better, and can reduce the error that magnet steel threaded hole 2c adds man-hour.
In all the other embodiments, the quantity of the pilot hole 4 that location longitudinally is arranged with on motherboard 1, can be 3 or more, can be used as positioning guiding plate 8 initial locating hole, and longitudinally the height of positioning guiding plate 8 is positioned.
Refer to Figure 12 and Figure 13, the method for the present embodiment combined type thread mill drilling, before described step e, is carried out accurate adjustment by following steps to adjacent two circumferential positions of locating motherboards:
De1, on two adjacent location motherboards 1, a location survey piece 11 respectively is set, two location survey pieces 11 respectively with adjacent two location motherboards 1 on, adjacent two row pilot hole 4 pin joints, the opposite sides of two location survey pieces 11 is provided with datum plane 11a, the size of the angle α between the sagittal plane of a row pilot hole 4 of this location survey piece 11 of each datum plane 11a and pin joint equals on adjacent two location motherboards 1, the central angle β size between adjacent two row pilot holes 4 half;
In the present embodiment, central angle on adjacent two location motherboards 1 of installing at step c, between adjacent two row pilot holes 4, comprised two adjacent row pilot holes 4 and between two adjacent row pilot holes 4 four central angle angle summations location motherboard 1, four row magnet steel threaded hole 2c row not yet be installed.
In the present embodiment, the size of the corresponding central angle of six row magnet steel threaded hole 2c is 360 ° of ÷ 80 * 5=22.5 °, and the angle α between the sagittal plane of a row pilot hole 4 of this location survey piece 11 of datum plane 11a and pin joint is 11.25 °.By calculating or measuring, obtain the theoretical air line distance of the datum plane 11a between adjacent two location motherboards 1 on drawing.
De2, measure the spacing of two datum plane 11a, and compare with the theoretical air line distances of datum plane 11a between adjacent two the location motherboards 1 that calculate or record on drawing, thereby the position of two adjacent location motherboards 1 is finely tuned.
All the other steps refer to embodiment 1.
Refer to 14 to Figure 17, in the method for the present embodiment combined type thread mill drilling, described step f specifically comprises the following steps:
F1, by step c described adjacent two the location motherboards 1 pull down;
F2, as shown in figure 14, the one row pilot hole 4 at the edge of the location motherboard 1 that step f1 pulls down is along circumferentially mobile 13.5 °, and take the magnet steel threaded hole 2c that processed and locate by pin as benchmark, as shown in figure 15, between its excess-three row pilot hole 4 on this location motherboard 1 and adjacent two the location motherboards 1 described in step c in the four row magnet steel threaded hole 2c at interval, the three row magnet steel threaded hole 2c near this location motherboard 1 align.
Adopt said method that another location motherboard 1 is installed, as shown in figure 16, by another location motherboard 1, along circumferentially mobile 4.5 °, as shown in figure 17, making all has pilot hole 4 correspondences on each magnet steel threaded hole 2c to be processed.
All the other steps refer to embodiment 2.
In all the other embodiments, the columns that circumferentially move on edge after location motherboard 1 is pulled down can be selected arbitrarily under the prerequisite that not exceed hole number of columns on the motherboard 1 of location, as long as it has initial locating hole, also can be listed as by correspondence magnet steel threaded hole 2c to be processed, at this, just repeat no more.
Refer to Figure 19, in the method for the present embodiment combined type thread mill drilling, step e adopts screw tap 7 to carry out tapping.
Be different from the traditional screw tap 7 shown in Figure 12, the head of the present embodiment plug tap 7 is provided with lead 7a, lead 7a and pilot hole 4 matched in clearance.The suitable lead 7a by the internal diameter of the head setting at screw tap 7 and pilot hole 4, make screw tap 7 axis consistent with the axis of magnet steel threaded hole 2c, thereby guaranteed the radially machining accuracy of magnet steel threaded hole 2c.
All the other steps refer to embodiment 1.
Refer to Fig. 8 to Figure 11, in the method for the present embodiment combined type thread mill drilling, at step b, in step c and step e, , be provided with binder 6 between the extrados of positioning guiding plate 8 and magneto outer rotor 2, binder 6 comprises the first clamping part 6a and the second clamping part 6b, the first clamping part 6a closely is connected with the extrados of magneto outer rotor 2, the second clamping part 6b is arranged at intrados one side of positioning guiding plate 8, the second clamping part 6b has been disposed radially the adjusting screw, regulate in screw and be provided with hold-down bolt 6d, after fitting in seam 3 and the upper surface of magneto outer rotor 2, adjusting hold-down bolt 6d exerts pressure fastening by positioning guiding plate 8 and magneto outer rotor 2.Exert pressure by 6 pairs of magneto outer rotors 2 of binder and positioning guiding plate 8 fastening, further improve Assembly stability, thereby reduce mismachining tolerance, improve machining accuracy.
All the other steps refer to embodiment 4.
Refer to Fig. 4 to Figure 11, a kind of device of combined type 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 longitudinally is arranged with several pilot holes 4, and each pilot hole 4 all radially runs through location motherboard 1, and the position of pilot hole 4 is corresponding with the lengthwise position of magnet steel threaded hole 2c on magneto outer rotor 2; Adopt such processing unit (plant) auxiliary positioning processing magnet steel threaded hole 2c, because the extrados of location 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 of longitudinally arranging on the motherboard 1 of location, in boring, led during tapping, guaranteed magnet steel threaded hole 2c radially, axial machining accuracy.
Utilize the device of the present embodiment combined type thread mill drilling to assist the method for magnet steel threaded hole 2c processing, refer to embodiment 1.
Refer to Fig. 4 to Figure 11, in the device of the present embodiment combined type thread mill drilling, the top of location motherboard 1 is provided with the seam 3 protruded along extrados; Because the flatness precision of anti-drive end 2a end face after processing of magneto outer rotor is high, locate by edge the seam 3 that the extrados of motherboard 1 protrudes during assembling and fit tightly with the anti-drive end 2a end face of magneto outer rotor, can guarantee to locate motherboard 1 and there is good assembly precision.
All the other structures refer to embodiment 6.
Utilize the device of the present embodiment combined type thread mill drilling to assist the method for magnet steel threaded hole 2c processing, refer to embodiment 1.
Refer to Fig. 4 to Figure 21, in the device of the present embodiment combined type thread mill drilling, on the motherboard 1 of location, the quantity of pilot hole 4 is two, and the pilot hole 4 on the motherboard 1 of location is corresponding one by one with the lengthwise position of two magnet steel threaded hole 2c of contiguous magneto outer rotor 2 anti-drive ends; Also comprise positioning guiding plate 8, positioning guiding plate 8 is arc, and the extrados of positioning guiding plate 8 is identical with the curvature of the intrados of magneto outer rotor 2; Positioning guiding plate 8 longitudinally is arranged with several pilot holes 4, and on positioning guiding plate 8, the position of pilot hole 4 is corresponding one by one the lengthwise position of closing screw thread with vertical upper all the other magnet steel of magneto outer rotor 2; The upper end of positioning guiding plate 8 is fixedly installed connector 9, positioning guiding plate 8 is located motherboards 1 and is connected by connector 9, the outside of connector 9 is identical with the intrados curvature of location motherboard 1, two hole 9a that are located by connecting are arranged on connector 9, and the 9a position, hole that is located by connecting is corresponding one by one with the lengthwise position of two pilot holes 4 of motherboard 1 lower end, location.
By flat location motherboard 1, with the positioning guiding plate 8 of strip, combine, utilize location motherboard 1 after the anti-drive end 2a of magneto outer rotor mono-side processes at least two starter hole for positioning guiding plate 8 location, complete the auxiliary positioning of the some magnet steel threaded hole 2c that longitudinally arrange in back by positioning guiding plate 8, holed one by one again, tapping, the structure of locating motherboard 1 is simplified more, not only be easy to processing, and the gross weight of saving cost, reducing to process apparatus.
In all the other embodiments, the quantity that longitudinally is arranged in the pilot hole 4 on the motherboard 1 of location can be three or more, accordingly, be fixedly connected on the hole 9a that is located by connecting that also is provided with equal number on the connector 9 of positioning guiding plate 8 upper ends, just do not repeat one by one at this.
All the other structures refer to embodiment 7.
Utilize the device of the present embodiment combined type thread mill drilling to assist the method for magnet steel threaded hole 2c processing, refer to embodiment 1.
The above is described in detail embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-described embodiment; can also make various variations in the ken possessed those of ordinary skills, within these variations all belong to protection scope of the present invention.
Claims (10)
1. the method for a combined type thread mill drilling, is characterized in that, comprises the following steps:
step a, with CNC planer type milling machine, process location motherboard (1) and positioning guiding plate (8):
Location motherboard (1) and positioning guiding plate (8) are arc, and the extrados of extrados, the positioning guiding plate (8) of location motherboard (1) is all identical with the curvature of the intrados of magneto outer rotor (2), and the top of location motherboard (1) is provided with along the seam (3) of the extrados protrusion of locating motherboard (1); Described location motherboard (1) longitudinally is arranged with at least two pilot holes (4), the position of the upper pilot hole (4) of described location motherboard (1) is corresponding one by one with the lengthwise position of at least two magnet steel threaded holes (2c) of the anti-drive end (2a) of contiguous magneto outer rotor, and each pilot hole (4) all radially runs through location motherboard (1);
Described positioning guiding plate (8) longitudinally is arranged with several pilot holes (4), and the position that all the other magnet steel threaded holes (2c) are vertically gone up with magneto outer rotor (2) in the position of the upper pilot hole (4) of described positioning guiding plate (8) is corresponding one by one;
The upper end of positioning guiding plate (8) is fixedly installed connector (9), at least two holes that are located by connecting (9a) are arranged on described connector (9), and the position in the described hole that is located by connecting (9a) is corresponding one by one with the lengthwise position of at least two pilot holes (4) of motherboard (1) lower end, location;
step b, first location motherboard (1) is arranged on to 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, anti-drive end (2a) the end face laminating of seam (3) and the magneto outer rotor of location motherboard (1), the position that makes to locate the upper pilot hole (4) of motherboard (1) is corresponding one by one with the position of at least two magnet steel threaded holes (2c) on a file of the anti-drive end (2a) of vicinity magneto outer rotor;
Step c, at several location motherboards (1) of the circumferential installation of magneto outer rotor (2), the columns of the pilot hole (4) on each location motherboard (1) is identical, be separated with magnet steel threaded hole (2c) between between adjacent two location motherboards (1), between described adjacent two location motherboards (1), the columns of the magnet steel threaded hole (2c) at interval is identical with the columns of the upper pilot hole (4) of location motherboard (1);
steps d, that positioning guiding plate (8) is arranged on to location motherboard (1) is upper:
The intrados of the extrados of positioning guiding plate (8) and magneto outer rotor (2) fits tightly, pilot hole (4) on the hole that is located by connecting (9a) on pin joint connector (9) and location motherboard (1), the position of all the other the magnet steel threaded holes (2c) on making pilot hole (4) and being positioned at magneto outer rotor (2) one files is corresponding one by one;
step e, boring, tapping:
By being arranged at the rotary rig (5) of magneto outer rotor (2) central authorities, the corresponding magnet steel threaded hole of each pilot hole (4) (2c) is holed, then carry out manual tapping;
step f,between adjacent two the location motherboards (1) described in step c, the magnet steel threaded hole (2c) at interval locates to install location motherboard (1);
step g,repeating step d and step e, complete the processing of the upper whole magnet steel threaded holes (2c) of magneto outer rotor (2).
2. the method for combined type thread mill drilling according to claim 1, is characterized in that, before described step e, by following steps, adjacent two circumferential positions of locating motherboards carried out to accurate adjustment:
De1, on two adjacent location motherboards (1), a location survey piece (11) respectively is set, two location survey pieces (11) are located on motherboards (1) with adjacent two respectively, two adjacent row pilot hole (4) pin joints, the opposite sides of two location survey pieces (11) is provided with datum plane (11a), the size of the angle (α) between the sagittal plane of one row pilot hole (4) of this location survey piece (11) of each datum plane (11a) and pin joint equals on adjacent two location motherboards (1), half of central angle (β) size between two adjacent row pilot holes (4),
De2, measure the spacing of two datum planes (11a), and the position of two adjacent location motherboards (1) is finely tuned.
3. the method for combined type thread mill drilling according to claim 2, it is characterized in that: described respectively the location on motherboard (1) is provided with at least two row pilot holes (4), and location motherboard (1) the above radially angle of two adjacent row pilot holes (4) equates with the radially angle of the magnet steel threaded hole (2c) of upper adjacent two files of magneto outer rotor (2).
4. the processing method of combined type thread mill drilling according to claim 3, is characterized in that, described step f specifically comprises the following steps:
F1, by step c described adjacent two the location motherboards (1) pull down;
It is origin reference location that at least one row pilot hole (4) of the location motherboard (1) that f2, step f1 pull down be take the magnet steel threaded hole (2c) processed, 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 motherboards (1) described in step c.
5. according to the method for the described combined type thread mill drilling of arbitrary claim in claim 1 to 4, it is characterized in that: in described step e, 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. according to the method for the described combined type thread mill drilling of arbitrary claim in claim 1 to 4, it is characterized in that: at step b, in step c and step e, be provided with binder (6) between the extrados of described positioning guiding plate (8) and magneto outer rotor (2), described binder (6) comprises the first clamping part (6a) and the second clamping part (6b), described the first clamping part (6a) closely is connected with the extrados of magneto outer rotor (2), described the second clamping part (6b) is arranged at intrados one side of positioning guiding plate (8), described the second clamping part (6b) has been disposed radially the adjusting screw, regulate in screw and be provided with hold-down bolt (6d), after fitting in seam (3) and the upper surface of magneto outer rotor (2), adjusting hold-down bolt (6d) exerts pressure fastening by positioning guiding plate (8) and magneto outer rotor (2).
7. the device of a combined type 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) longitudinally is arranged with several pilot holes (4), each pilot hole (4) all radially runs through location motherboard (1), and the position of pilot hole (4) is corresponding with the lengthwise position of magnet steel threaded hole (2c) on magneto outer rotor (2).
8. the device of combined type 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 combined type thread mill drilling according to claim 8 is characterized in that:
The quantity of the upper pilot hole (4) of described location motherboard (1) is at least two, and the pilot hole (4) on described location motherboard (1) is corresponding one by one with the lengthwise position of at least two magnet steel threaded holes (2c) of contiguous magneto outer rotor anti-drive end (2a);
Also comprise positioning guiding plate (8), described positioning guiding plate (8) is arc, and the extrados of positioning guiding plate (8) is identical with the curvature of the intrados of magneto outer rotor (2); Described positioning guiding plate (8) longitudinally is arranged with several pilot holes (4), and the position of the upper pilot hole (4) of described positioning guiding plate (8) is corresponding one by one with the lengthwise position of all the other the magnet steel threaded holes (2c) on magneto outer rotor (2) one files;
The upper end of positioning guiding plate (8) is fixedly installed connector (9), positioning guiding plate (8) is located motherboard (1) and is connected by connector (9), the outside of described connector (9) is identical with the intrados curvature of location motherboard (1), at least two holes that are located by connecting (9a) are arranged on described connector (9), and the position in the described hole that is located by connecting (9a) is corresponding one by one with the lengthwise position of at least two pilot holes (4) of motherboard (1) lower end, location.
10. the device of combined type thread mill drilling according to claim 9, 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), described the first clamping part (6a) closely is connected with the extrados of magneto outer rotor (2), described the second clamping part (6b) is arranged at intrados one side of arc, described the second clamping part (6b) has been disposed radially the adjusting screw, regulate in screw and be provided with hold-down bolt (6d), described hold-down bolt (6d) is with respect to the second clamping part (6b) moving radially along magneto outer rotor (2).
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| CN201210183924.0A CN103464807B (en) | 2012-06-06 | 2012-06-06 | A kind of method of combined type thread mill drilling and device |
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| CN201210183924.0A CN103464807B (en) | 2012-06-06 | 2012-06-06 | A kind of method of combined type thread mill drilling and device |
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| JPS6085808A (en) * | 1983-10-18 | 1985-05-15 | Toshiba Corp | Pin hole drilling device for turbine rotor wheel |
| CN201070687Y (en) * | 2007-06-25 | 2008-06-11 | 哈尔滨汽轮机厂有限责任公司 | Turbine rotor fork shaped blade root pin-and-hole split fork space spotting drill mould |
| CN101628371A (en) * | 2009-07-31 | 2010-01-20 | 天津重钢机械装备股份有限公司 | Method for processing large workpiece boring hole by using drilling machine |
| CN202180234U (en) * | 2011-05-11 | 2012-04-04 | 大连船舶重工集团装备制造有限公司 | Tap drilling template |
| CN202639421U (en) * | 2012-06-06 | 2013-01-02 | 东方电气集团东方电机有限公司 | Combined threaded hole processing device |
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2012
- 2012-06-06 CN CN201210183924.0A patent/CN103464807B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6085808A (en) * | 1983-10-18 | 1985-05-15 | Toshiba Corp | Pin hole drilling device for turbine rotor wheel |
| CN201070687Y (en) * | 2007-06-25 | 2008-06-11 | 哈尔滨汽轮机厂有限责任公司 | Turbine rotor fork shaped blade root pin-and-hole split fork space spotting drill mould |
| CN101628371A (en) * | 2009-07-31 | 2010-01-20 | 天津重钢机械装备股份有限公司 | Method for processing large workpiece boring hole by using drilling machine |
| CN202180234U (en) * | 2011-05-11 | 2012-04-04 | 大连船舶重工集团装备制造有限公司 | Tap drilling template |
| CN202639421U (en) * | 2012-06-06 | 2013-01-02 | 东方电气集团东方电机有限公司 | Combined threaded hole processing device |
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| CN103464807B (en) | 2016-04-27 |
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