CN103887931A - Motor numerical control assembling device and method - Google Patents

Motor numerical control assembling device and method Download PDF

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Publication number
CN103887931A
CN103887931A CN201410128132.2A CN201410128132A CN103887931A CN 103887931 A CN103887931 A CN 103887931A CN 201410128132 A CN201410128132 A CN 201410128132A CN 103887931 A CN103887931 A CN 103887931A
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China
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motor
slide
stator
rotor
stator module
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CN201410128132.2A
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Chinese (zh)
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CN103887931B (en
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刘海岷
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武汉轻工大学
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Publication of CN103887931B publication Critical patent/CN103887931B/en
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Abstract

The invention relates to a motor numerical control assembling device and method. A tip cone is arranged on a base head frame in the axial direction of a pre-assembled motor in a suspension mode. The tip cone penetrates through a central through hole of a stator fixing element. A sliding rail is arranged at the right end of a base in the axial direction of the motor and is used for fixing the stator fixing element of a stator component to be driven by a servo motor to drive the stator component to linearly move along the sliding rail. A center-adjustable tip which can flexibly shift and change around the axis of a rotor is arranged on a tail base, and the tip is horizontally arranged and can stretch into a central hole in the rear end of a rotor shaft of the pre-assembled motor to be located. The reserved axial length between the tip cone and the tip is larger than the axial length of the pre-assembled motor, the axis of the tip, the axis of the tip cone and the central through hole of the stator fixing element are concentrically arranged, and the tip cone and the tip can clamp and abut against the left end and the right end of a pre-assembled motor shaft respectively. The motor can be automatically assembled, the problem that a rotor component is attracted on a stator component magnetically in the traditional assembling method is solved, and assembling quality and assembling efficiency are greatly improved.

Description

Motor numerical control assembling device and method
Technical field
The present invention relates to motor mounting technology field, be specifically related to a kind of special equipment and method that adopts Numeric Control Technology motor to be carried out to assembling automatically.
Background technology
The technique that middle and small motor is assembled of generally acknowledging at present, comprises the steps:
1. the preparation before assembling
(1) motor base to be assembled (stator), electricity are driven after (rotor) and other annex clean out foreign matter and use the cotton wiped clean that speckles with gasoline;
(2) check that stator and rotor winding insulation winding, outlet box insulation are not less than the not damaged that requires of regulation;
(3.) check that whether channel mould, tooth support, winding overhang colligation and cross-over block loosening and come off, channel mould and colligation whether exceed surface unshakable in one's determination without latitude or tied rope;
2. the pre-assembled of rolling bearing
Motor rolling bearing uses in pairs in motor, be arranged on respectively motor shaft load end and unsupported end two ends, be fixed on electric machine stand (stator winding is in support) end cap at every one end housing washer, inner ring is fixed on rotor shaft extension end, work the motion of supporting counterrotating rotor, mainly bear the footpath taking radial load as master, axial connected load, also rotor axis of electric is played to two-way axle positioning action simultaneously.
In motor assembly technology, the pre-assembled mode of rolling bearing has two kinds: a kind of is that bearing is pre-assembled on the axle journal of rotor axis of electric, rotor is inserted in after electric machine stand again by after being arranged on housing washer with the electric motor end cap of bearing pedestal along bore of stator central axis, electric motor end cap is fixed on electric machine stand; Another kind is that bearing is pre-assembled on electric motor end cap bearing pedestal, and rotor is fixed on electric motor end cap on electric machine stand after will being arranged on housing washer with bearing electric machine end cap again after bore of stator central axis inserts in electric machine stand.
No matter be that assembly method all has shrink-on and two kinds of mounting processs of cooling jacket.If rolling bearing need to be preloaded onto on motor bearings neck, when shrink-on, be that rolling bearing to be installed is placed on and in machine oil, is heated to 5~10 minutes, 100 DEG C of left and right (sealed bearing employing electrical heating method), when rapidly bearing being inserted on rotor axis of electric neck after inner ring swell, treat that the cooling contraction rear bearing of bearing inner ring is just fixed on rotor axle journal tightly; If rolling bearing need to be preloaded onto on electric motor end cap, that end cap is placed on and in machine oil, is heated to 5~10 minutes, 100 DEG C of left and right, when rapidly bearing outer ring being pressed in end-cover axle bearing after end-cover axle bearing swell, treat that the cooling contraction rear bearing of end-cover axle bearing outer ring is just fixed in electric motor end cap bearing pedestal tightly.
So-called cooling jacket is exactly that the mode that adopts external force to cold pressing installs to bearing holder (housing, cover) on rotor axle journal or in end-cover axle bearing.If bearing holder (housing, cover) is installed on rotor axle journal, bearing is enclosed within advance (internal diameter is less than rotor axle journal) on rotor axis of electric elongated end, then use an internal diameter than the large 2~3mm of axle journal, thickness is less than the sleeve that the copper (or soft metal) of bearing inner race thickness makes and packs into rotor axis of electric from the outer end of axle, end face and bearing inner race end face close contact that sleeve is inserted, finally firmly beat from the sleeve other end, until bearing is in place; If rolling bearing need to be preloaded onto on electric motor end cap, bearing is placed on electric motor end cap bearing pedestal in advance, then use an external diameter than the little 2~3mm of bearing outer ring, thickness is less than end face and the bearing outer ring end face close contact of sleeve one end that the copper (or soft metal) of bearing outer ring thickness makes, finally firmly beat from the sleeve other end, until bearing is in place.
For large in batches production, some enterprise also adopts forcing press that bearing is pressed on rotor axle journal or in electric motor end cap bearing pedestal for improving assembly quality and efficiency.But general common No. 5 supports and following micro-machine adopt cooling jacket mode.
If direct current machine or wound rotor alternating current machine are installed bearing after needing formerly to install commutator or collector ring again.
3. pack rotor into bore of stator
(1) motor base (stator) is lain on workbench;
(2) special small-sized or micromachine directly inserts rotor with hand from motor base one end along stator winding axis.To as slightly bigger motor, due to weight exceed staff hold Beijing South Maxpower Technology Co. Ltd's power time, generally all lift by specific purpose tool, as rotor hoisting device etc.The linking arm that hoisting device connects by top lifting boom, up and down and the running-on of bottom level setting form.Running-on is the sleeve pipe that an internal diameter is slightly larger than motor-shaft extending end.Lifting mode is: by casing pipe sleeve in one end of motor-shaft extending end (being generally motor load end), lifting rope one end is enclosed within on lifting boom, adjust the lifting of lifting center, the stator winding central axis of then other end of rotor axis of electric being aimed to motor base one end inserts.After rotor lifting puts in place substantially, gently rotor is put down and set aside on stator, hoisting device is taken off.
4. the installation of electric motor end cap
Because bearing outer ring and electric motor end cap bearing pedestal are also interference fit, therefore, also there is heat to install and two kinds of modes of cold installation (cold pressing into) by technological requirement when mounted, but generally all adopt cold mounting means.Mounting process is generally: forward and backward bearing (ball) cover is enclosed within respectively axle from rotor axis of electric two ends, after on the rotor shaft extension end of lifting rope cover difference end cap outer end, slowly lift by crane, rotor lifting is rotated to one end end cap during to stator winding axis, end cap is aimed at the seam on motor base, withstand with hard thing at the motor shaft other end, then use sleeve (internal diameter is slightly larger than motor shaft) to pack into motor shaft elongated end and make sleeve end face and bearing cap end face close contact, finally firmly beat from the sleeve other end, until electric motor end cap is in place.Install behind one end, with same method, the other end is installed.After the end cap at two ends all installs (seam alignment), fastening bolt is tightened.
5. the installation of other parts
Fan is packed into from shaft extension end, install after dropping place with after screw fastening by fan guard cover.
But there are the following problems for the technique that above-mentioned motor is installed and assembled:
1. while lid in mounted motor rear and front end, rotor is to be sling and be suspended in stator winding chamber by crane, utilize sleeve to apply External Force Acting in electric motor end cap, when end-cover axle bearing is squeezed into bearing outer ring, inhomogeneous due to active force, cause rotor in stator winding chamber axially with radially produce irregular motion by reaction, make rotor outer wall and the grazing of stator winding cavity wall and produce damage; Meanwhile, this inhomogeneous active force applying also very easily damages bearing, clamping stagnation while making motor operation;
Due to bore of stator axis and armature spindle axis concentricity requirement higher, adopt stator hoisting mode to carry out axle center positioning precision poor, cause rotor electromagnetic force moment unbalance;
3. unstable product quality while batch production in batches, rework rate is higher.
4. the rotor assembly of servomotor is permanent magnet, has powerful magnetic force, and the slightly different axle of rotor assembly and stator module can cause magnetic force unbalance, and rotor assembly is adsorbed on stator module, cannot separate by manpower.
Summary of the invention
The installation quality problem causing in order to overcome existing motor assembly technology, the invention provides a kind of taking Numeric Control Technology as basic motor assembling special equipment and method, this equipment can not only complete assembling to motor automatically, but also do not damage bearing and motor stator and rotor surface, key is to have solved the problem of traditional assembly method rotor assembly magnetic-adsorption on stator module, greatly improves assembly quality and efficiency of assembling.
The present invention is as follows for addressing the above problem adopted technical scheme:
A kind of motor numerical control assembling device, is characterized in that: comprise base, the headstock, stator retaining element, tailstock;
The left end of base arranges the headstock, and on the headstock, along the axial unsettled horizontal spindle that arranges of prepackage motor, main shaft end is the addendum cone that can stretch into prepackage rotor axis of electric front end centre bore; Addendum cone is through the central through hole of stator retaining element;
The right-hand member of the headstock along the axial arranged slide rail of motor, can drive stator module along this slide rail rectilinear motion for the stator retaining element of fixed stator assembly under driven by servomotor;
The right-hand member of base arranges another axial slide rail, and tailstock is arranged on this another slide rail and is locked by retaining mechanism; Tailstock holds out against air cylinder driven by rotor also can be along this another slide rail rectilinear motion; An energy is set top around the adjusting center of the flexible skew variation of rotor axis on tailstock, top being horizontally disposed with, left end is to stretch into the tip of locating in prepackage rotor shaft rear end centre bore;
Addendum cone and top between reserved axial length be greater than the axial length of pre-installing motor, and the top and shaft centre line of addendum cone and the central through hole of stator retaining element arrange with one heart, makes addendum cone and toply can clamp respectively the two ends, left and right of withstanding prepackage motor shaft.
In technique scheme, the top concrete structure of adjusting center is: on tailstock, along continuous straight runs is fixedly installed mohs bush, and mohs bush outer surface is circular cylinder body, inside establishes the hollow taper hole of major part towards axial horizontal left end; The head end of Morse taper shank is cylindrical shell, and afterbody connects the long handle of conical shell shape, and this long handle stretches in the taper hole of mohs bush; Opening internal taper hole is outwardly set on the left side of the head end cylindrical shell of Morse taper shank; Top being horizontally disposed with, left end is the tip that can stretch in prepackage rotor shaft rear end centre bore, right-hand member contacts and is co-located at butterfly spring in an end closure and horizontally disposed adjusting center positioning sleeve; The right side sealing end of adjusting center positioning sleeve is sphere tail end, and the internal taper hole of the head end cylindrical shell of Morse taper shank coordinates with the sphere tail end sliding contact of adjusting center positioning sleeve; The head end cylindrical shell of adjusting center positioning sleeve and Morse taper shank is all arranged in a thread bush, between adjusting center positioning sleeve and thread bush, coordinates by self-aligning bearing is movable.
In technique scheme, top tip is arranged in the sleeve pipe of adjusting center positioning sleeve, and tip is setpoint distance apart from the sleeve pipe left side of adjusting center positioning sleeve, and this setpoint distance is not more than prepackage rotor shaft rear end extension elongation.
In technique scheme, the concrete structure of stator retaining element is: the bottom of stator retaining element is arranged on a slide rail described in this by axial slide slide carriage, and axially slide slide carriage is by driven by servomotor can be along this slide rail rectilinear motion; Axially on slide slide carriage, slide seat body is set, stator retaining element is on slide seat body; Slide seat body be vertically arrange and plate face perpendicular to the slab of a described slide rail, the central through hole of stator retaining element is offered at slab center, central through hole radial outer periphery arranges stepped hole with one heart, elastic positioning element is arranged in stepped hole and is fixed on slide seat body; Elastic positioning element cross section is circular, has the outer rim seam that protrudes vertically slide seat body right side towards right-hand member; The radial outer periphery of elastic positioning element, is also fixedly installed clamping cylinder on slide seat body, clamping cylinder clamping plate are set on the projecting shaft of clamping cylinder, and the initial position of clamping cylinder clamping plate is horizontal cross setting vertical with clamping cylinder projecting shaft.
In technique scheme, elastic positioning element end face cylindrical and end face flange spigot coordinate with the front end positioning spigot of stator module; Clamping cylinder clamping plate are fixed on stator module on slide seat body.
In technique scheme, on slide seat body, be fixedly installed 2-3 clamping cylinder; In the time that clamping cylinder ante-chamber pressurizes, clamping cylinder clamping plate are longitudinally or in axial linear movement, from horizontal cross position 90-degree rotation, then do rectilinear motion, until the locating flange of clamping motor stator module, in the time that the back cavity of cylinder pressurizes, first clamping cylinder clamping plate do rectilinear motion and unclamp locating flange, and then clamping cylinder clamping plate 90-degree rotation is to horizontal cross position.
In technique scheme, axially on slide slide carriage, be also provided with horizontal cross guide rail, horizontal cross guide rail and a described guide rail be in the horizontal direction 90 ° vertical; Axially there is cross slide slide slide carriage upper end, and cross slide is connected with axial slide slide carriage by bottom guide groove, and cross slide is driven and can be done horizontal cross feed motion by screw mandrel; Stator support frame and stator high-low regulating are set on cross slide; Slide seat body is fixed on cross slide by stator support frame.
In technique scheme, a described slide rail overlaps with another axial slide rail or is parallel up and down.
In technique scheme, the headstock comprises the chuck on U-shaped seat and U-shaped seat, and main shaft is through chuck and pass through angle thrust bearing by chuck support.
The motor assembly method that adopts above-mentioned motor numerical control assembling device, is characterized in that comprising the steps:
(1) the preparation such as clean, the inspection to all parts of motor and Insulation test work;
(2) after rolling bearing being pre-assembled on the axle at rotor two ends, the end cap of the unsupported end of motor is assembled on the outer ring of unsupported end bearing, forms the rotor assembly just installing; , stator and front end housing, rear end cap are assembled meanwhile, formed the stator module just installing; Front end housing has front end positioning spigot;
(3) utilize stator retaining element to carry out the fixing of stator module and location: by the front end housing positioning spigot endoporus of stator module to the elastic positioning element seam on alignment motor numerical control assembling device, behind seam location, clamping cylinder clamping plate are then yearned for front end rectilinear motion until compress the locating flange of stator module along motor shaft around projecting shaft 90-degree rotation separately, make to be fixed to the slide seat body at motor numerical control assembling device behind stator module location;
(4) rotor assembly is placed between the headstock of motor numerical control assembling device and tailstock and is fixedly clamped: addendum cone stretches in armature spindle front end centre bore, top stretching in the centre bore of armature spindle rear end; Afterwards, rotor holds out against cylinder and stretches out toward front end, drives tailstock and toply moves forward, is contacted to realize rotor assembly location respectively and clamps with top by addendum cone from the compression at armature spindle two ends; Meanwhile, when rotor holds out against cylinder also for the assembling of the motor of different model, adjust position; After tailstock drives top arrival clamping and positioning position, tailstock is locked by locking device; The butterfly spring of top afterbody ensure top all the time with armature spindle rear end centre bore close contact to realize centering;
(5) slide servomotor effect, drives slide seat body to move axially along motor by axial slide slide carriage, and the stator module on slide seat body synchronously moves vertically and the centre bore that makes rotor assembly pass stator module carries out combination and assembles;
Stator module and electric rotor assembly in conjunction with assembling process in, when the rear bearing of rotor assembly enters moment in the rear bearing hole of stator module, certainly lead to interfering edge, now, because stator module is positioned on elastic positioning element, distortion by elastic positioning element under stressed, will inevitably along the direction of interfering edge make stator module according to the journal offset of rotor assembly to realize disalignment compensation of error; Simultaneously, be contained in top meeting in adjusting center positioning sleeve along with rotor assembly swings on the inner conical surface of Morse taper shank front end along the rotate axis of sub-component of the direction of interfering edge, compensation disalignment error, rear bearing packed into smoothly and do not damage bearing, and having avoided rotor assembly magnetic-adsorption on stator module.
With respect to prior art, beneficial effect of the present invention is:
In the assembling process of motor, the fore bearing of rotor assembly will coordinate with the fore bearing hole of stator module, the rear bearing of rotor assembly will coordinate with the rear bearing hole of stator module, the cooperation at two bearings place is situated between in little gap with between excessively coordinating, and stator module and rotor assembly are all rigid bodies, all there is disalignment error in rotor assembly and stator module self front and back bearings; Theoretically, prior art will realize undamaged assembling by two out-of-alignment rigid bodies, can not realize, and this new technology has solved above problem, and its key technology is as follows:
1) innovated motor assembly technology, the right-hand member Position Design of rotor assembly adjusting center locating centre that can offset angle, axial force is by adjusting center positioning sleeve, self-aligning bearing off-load on tailstock, and the top stressed power that is always butterfly spring, protects centre bore not impaired; Together with the flexible setting element of adjusting center locating centre and stator module, jointly compensate the assembly quality problem that the disalignment of stator module and rotor assembly causes, particularly solved the problem of traditional assembly method rotor assembly magnetic-adsorption on stator module.
2) adopted elastomeric material, as the stator module setting element of polyurethane material, can the distortion under stressed by setting element, the assembling difficulty that compensation stator module and rotor assembly disalignment cause, improves assembly quality.
3) change the horizontal assembling of motor into by the vertical assembling of motor, facilitated the lifting of motor, improved efficiency of assembling.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is described in further detail:
Figure 1 shows that the rotor assembly of the prepackage of assembling according to the present invention.
Figure 2 shows that the stator module of the prepackage of assembling according to the present invention.
Fig. 3 is the motor numerical control assembling device structural representation according to enforcement of the present invention.
Fig. 4 is tailstock of the present invention and adjusting center top tip structure schematic diagram.
Fig. 5 is that rotor assembly of the present invention holds out against schematic diagram.
Fig. 6 is stator retaining element structural representation of the present invention.
Embodiment
According to motor numerical control assembling device of the invention process, as shown in Fig. 3-6, total arrangement as shown in Figure 3.Mainly holding out against the functional parts such as cylinder 7 by base 8, tailstock 5, the headstock 1, stator retaining element 4, rotor, to form each component function as follows:
Base 8 comprises the lathe bed and the base that are fixed together, mainly its supporting role.Each critical piece is housed on lathe bed, and material is cast iron.Have longitudinal rail (also claiming motor shaft direction guiding rail) at lathe bed left end, the axial slide slide carriage 4.6 of stator retaining element 4 bottoms is contained on the longitudinal rail of lathe bed left end, can under 4.7 effects of slide servomotor, carry out linear longitudinal movement along lathe bed longitudinal guide.
Axially slide slide carriage 4.6 is provided with horizontal cross guide rail, horizontal cross guide rail and longitudinal rail be in the horizontal direction 90 ° vertical; Axially there is cross slide slide slide carriage 4.6 upper ends, and cross slide is connected with axial slide slide carriage 4.6 by base channel, and while driving screw mandrel rotation, cross slide can be done horizontal cross feed motion; Horizontal cross guide rail is preferably dovetail groove guide rail; Stator support frame and stator high-low regulating are set on cross slide, and stator support frame supports stator module 3 at vertical direction, and stator high-low regulating can be in the vertical height of the small adjustment motor stator of vertical direction.
By the supplying position of digital control system control slide plate and slide carriage, can adapt under same base seat number the motor assembling of different size.
The headstock 1 is arranged on the left end of lathe bed, comprises the chuck 1.2 on U-shaped seat and U-shaped seat, and main shaft passes chuck and supported by chuck 1.2 by angle thrust bearing.Main shaft end is the addendum cone 1.1 that can stretch into prepackage rotor axis of electric front end centre bore; Addendum cone 1.1 is through the central through hole of stator retaining element 4.In motor rotor component 3, motor shaft front end 3.3 is withstood by addendum cone 1.1; Recessed to drive back end cover for motor 3.5 on the rotor assembly 3 that withstood to stop seam on protruding aligning stator module 2 rear end caps 2.2.The shaft centre line of addendum cone 1.1 and tailstock 5 and be installed at top 5.6 shaft centre lines on tailstock 5 and the central through hole concentric (as shown in Figure 5) of stator retaining element 4.
Tailstock 5 is contained on another longitudinal rail of lathe bed right-hand member (another longitudinal rail can overlap with aforesaid longitudinal rail), can hold out against that cylinder 7 acts on and longitudinally move linearly and adjust along this another longitudinal rail by rotor whether rotor assembly 3 is contacted, after putting in place, pass through retaining mechanism fixed position on tailstock 5, top 5.6 axis of spindles are parallel with lathe bed longitudinal guide, top 5.6 and the butterfly spring 5.5 of top afterbody be longitudinally placed in adjusting center positioning sleeve 5.4, adjusting center positioning sleeve 5.4 is placed in thread bush 5.3, between adjusting center positioning sleeve 5.4 and thread bush 5.3, coordinate by self-aligning bearing 5.8 is movable, the head end cylindrical shell of Morse taper shank 5.2 stretches in the other end of thread bush 5.3, and the internal taper hole of the head end cylindrical shell of Morse taper shank 5.2 coordinates with the sphere tail end sliding contact of adjusting center positioning sleeve 5.4, the afterbody of Morse taper shank 5.2 head end cylindrical shells connects the long handle of conical shell shape, and this long handle stretches in the taper hole of mohs bush 5.1, and mohs bush 5.1 peripheries are circular cylinder body, a circular cylinder body part (being greater than 1/2nd cylindrical shell length) for mohs bush 5.1 stretches in tailstock 5 and with tailstock 5 and fixes.
As shown in Figure 6, be stator retaining element 4 of the present invention, be arranged on the slide seat body 4.3 of the end that keeps left, slide seat body 4.3 is fixed on stator support frame.Slide seat body 4.3 is a slab, and slab center offers through hole, through hole periphery and the concentric stepped hole that arranges of through hole, and stepped hole right-hand member is filled elastic positioning element 4.4, and elastic positioning element 4.4 contacts with the each step surface of stepped hole and coordinates and fixed by screw; Elastic positioning element 4.4 cross sections are circular, have the outer rim seam protruding towards right-hand member vertically; The radial outer periphery of elastic positioning element 4.4, on slide seat body 4.3, be also fixedly installed 2-3 clamping cylinder 4.1, clamping cylinder clamping plate 4.2 are set on the projecting shaft of clamping cylinder 4.1, and the initial position of clamping cylinder clamping plate 4.2 is horizontal cross setting vertical with clamping cylinder 4.1 projecting shafts; The action of clamping cylinder 4.1 comprises that rotation and straight line compress two actions: in the time that cylinder ante-chamber pressurizes, clamping cylinder clamping plate 4.2 are longitudinally or in axial linear movement, from horizontal cross position 90-degree rotation, then do rectilinear motion, until the locating flange of clamping motor stator module 2, in the time that the back cavity of cylinder pressurizes, first clamping cylinder clamping plate 4.2 do rectilinear motion and unclamp locating flange, and then clamping cylinder clamping plate 4.2 90-degree rotations are to horizontal cross position;
Preferred elastomeric setting element 4.4 adopts PU elastomeric material to make, and relies on cylindrical and end face flange spigot, coordinates location with the front end positioning spigot 2.4 of stator module 2.Behind location, by clamping cylinder clamping plate 4.2, stator module 2 is fixed on slide seat body 4.3.
Adopt after motor numerical control assembling device of the present invention, motor assembly method is as follows:
1) before assembling, complete the preparation (the same with generally acknowledged assembly technology) such as clean, inspection and Insulation test work of all parts;
2) rolling bearing (fore bearing 3.2 and rear bearing 3.4) is pre-assembled on the axle at rotor 3.1 two ends after (the same with generally acknowledged assembly technology), the end cap of the unsupported end of motor (being generally back end cover for motor 3.5) is assembled on the outer ring of unsupported end bearing (rear bearing 3.4) (as shown in Figure 1), forms the rotor assembly 3 just installing; , according to the mode of Fig. 2, stator core 2.1, stator winding 2.7 are assembled with front end housing 2.6, rear end cap 2.2 meanwhile, formed the stator module 2 just installing; Front end housing 2.6 has front end positioning spigot 2.4; Fore bearing hole 2.5 and rear bearing hole 2.3 in front end housing 2.6 and rear end cap 2.2 are vacant,
3) adjust the height of stator retaining element and along horizontal horizontal level, make stator module center line concentric with addendum cone center line;
4), as Fig. 3-5, utilize stator retaining element 4 to carry out the fixing and location of stator module 2: the initial position of the clamping cylinder clamping plate 4.2 of stator retaining element 4 is horizontal cross setting vertical with clamping cylinder 4.1 projecting shafts, the addendum cone 1.1 of the headstock 1 enters and stretches out from rear end from the centre bore front end of stator module 2, afterwards by front end housing positioning spigot 2.4 endoporus of stator module 2 to elastic positioning element 4.4 seams on alignment motor numerical control assembling device, behind seam location, clamping cylinder clamping plate 4.2 are then yearned for front end rectilinear motion until compress the locating flange of stator module 2 along motor shaft around projecting shaft 90-degree rotation separately, make to be fixed to behind stator module 2 location on the slide seat body 4.3 of motor numerical control assembling device (as shown in Figure 6, the general 2-3 of clamping cylinder 4.1, in figure, only draw 1), the action of clamping cylinder 4.1 comprises rotation and compresses two actions: in the time that cylinder ante-chamber pressurizes, clamping cylinder clamping plate 4.2 are in the straight-line while, from horizontal cross position 90-degree rotation, then do rectilinear motion, until the locating flange of clamping motor stator module, in the time that the back cavity of cylinder pressurizes, first clamping cylinder clamping plate 4.2 do rectilinear motion and unclamp locating flange, and then clamping cylinder clamping plate 4.2 90-degree rotations are to horizontal cross position,
5) as Fig. 3-6, rotor assembly 3 is lifted or is manually placed between the headstock 1 and tailstock 5 of motor numerical control assembling device, armature spindle front end 3.3 centre bores are located to realize with addendum cone 1.1 close contacts through stator module 2 centre bores; Tailstock 5 one end, top 5.6 in adjusting center positioning sleeve 5.4 and armature spindle rear end 3.6 centre bore close contacts; Afterwards, rotor holds out against cylinder 8 and stretches out toward front end, drive tailstock 5 and top 5.6 move forward and realize armature spindle front and back end along motor shaft to location clamp; Meanwhile, when rotor holds out against cylinder 8 also for the assembling of the motor of different model, adjust position, after arriving clamped position, tailstock 5 is locked by locking device; The butterfly spring 5.5 of top afterbody ensures that top 5.6 feel relieved to realize with armature spindle rear end 3.6 centre bore close contacts all the time;
6) as Fig. 3-6, slide servomotor 4.7 acts on, drive slide seat body 4.3 to move axially along motor by axial slide slide carriage 4.6, the stator module 2 on slide seat body 4.3 synchronously moves vertically and makes rotor assembly 3 carry out combination assembling through the centre bore of stator module 2;
Stator module 2 and electric rotor assembly 3 in conjunction with assembling process in, when the rear bearing 3.4 of rotor assembly 3 enters moment in the rear bearing hole 2.3 of stator module, certainly lead to interfering edge, now, because stator module 2 is positioned on elastic positioning element 4.4, distortion by elastic positioning element 4.4 under stressed, will inevitably along the direction of interfering edge make stator module 2 according to the journal offset of rotor assembly 3 to realize disalignment compensation of error; Meanwhile, being contained in top 5.6 in adjusting center positioning sleeve 5.4 can swing on the inner conical surface of Morse taper shank 5.2 front ends along the rotate axis of sub-component of the direction of interfering edge along with rotor assembly 3, and compensation disalignment error packs smoothly rear bearing into and do not damage bearing; Be fitted to each other in process, axial force is very large, is protection centre bore, and axial force is passed through adjusting center positioning sleeve 5.4, self-aligning bearing 5.8 off-loads on tailstock 5, the top 5.6 stressed power that are always butterfly spring 5.5.
In the assembling process of motor, the fore bearing of rotor assembly 3 will coordinate with the fore bearing hole of stator module 2, the rear bearing of rotor assembly 3 will coordinate with the rear bearing hole of stator module 2, the cooperation at two bearings place is situated between in little gap with between excessively coordinating, and stator module 2 and rotor assembly 3 are all rigid bodies, all there is disalignment error in rotor assembly 3 and stator module 2 self front and back bearings; Theoretically, two out-of-alignment rigid bodies be realized to undamaged assembling, can not realize, this new technology has solved above problem, and its key technology is as follows:
(1) innovated motor assembly technology, the right-hand member Position Design of rotor assembly adjusting center locating centre that can offset angle, with together with the flexible setting element of stator module, jointly compensate the assembly quality problem that the disalignment of stator module and rotor assembly causes.
(2) adopted elastomeric material, as the stator module setting element of polyurethane material, can the distortion under stressed by setting element, the assembling difficulty that compensation stator module and rotor assembly disalignment cause, improves assembly quality.
(3) change the horizontal assembling of motor into by the vertical assembling of motor, facilitated the lifting of motor, improved efficiency of assembling.

Claims (10)

1. a motor numerical control assembling device, is characterized in that: comprise base, the headstock, stator retaining element, tailstock;
The left end of base arranges the headstock, and on the headstock, along the axial unsettled horizontal spindle that arranges of prepackage motor, main shaft end is the addendum cone that can stretch into prepackage rotor axis of electric front end centre bore; Addendum cone is through the central through hole of stator retaining element;
The right-hand member of the headstock along the axial arranged slide rail of motor, can drive stator module along this slide rail rectilinear motion for the stator retaining element of fixed stator assembly under driven by servomotor;
The right-hand member of base arranges another axial slide rail, and tailstock is arranged on this another slide rail and is locked by retaining mechanism; Tailstock holds out against air cylinder driven by rotor also can be along this another slide rail rectilinear motion; An energy is set top around the adjusting center of the flexible skew variation of rotor axis on tailstock, top being horizontally disposed with, left end is the tip that can stretch in prepackage rotor shaft rear end centre bore;
Addendum cone and top between reserved axial length be greater than the axial length of pre-installing motor, and the top and shaft centre line of addendum cone and the central through hole of stator retaining element arrange with one heart, makes addendum cone and toply can clamp respectively the two ends, left and right of withstanding prepackage motor shaft.
2. motor numerical control assembling device according to claim 1, it is characterized in that: the top concrete structure of adjusting center is: on tailstock, along continuous straight runs is fixedly installed mohs bush, mohs bush outer surface is circular cylinder body, inside establishes the hollow taper hole of major part towards axial horizontal left end; The head end of Morse taper shank is cylindrical shell, and afterbody connects the long handle of conical shell shape, and this long handle stretches in the taper hole of mohs bush; Opening internal taper hole is outwardly set on the left side of the head end cylindrical shell of Morse taper shank; Top being horizontally disposed with, left end is the tip that can stretch in prepackage rotor shaft rear end centre bore, right-hand member contacts and is co-located at butterfly spring in an end closure and horizontally disposed adjusting center positioning sleeve; The right side sealing end of adjusting center positioning sleeve is sphere tail end, and the internal taper hole of the head end cylindrical shell of Morse taper shank coordinates with the sphere tail end sliding contact of adjusting center positioning sleeve; The head end cylindrical shell of adjusting center positioning sleeve and Morse taper shank is all arranged in a thread bush, between adjusting center positioning sleeve and thread bush, coordinates by self-aligning bearing is movable.
3. motor numerical control assembling device according to claim 1 and 2, it is characterized in that: top tip is arranged in the sleeve pipe of adjusting center positioning sleeve, and tip is setpoint distance apart from the sleeve pipe left side of adjusting center positioning sleeve, this setpoint distance is not more than prepackage rotor shaft rear end extension elongation.
4. motor numerical control assembling device according to claim 3, it is characterized in that: the concrete structure of stator retaining element is: the bottom of stator retaining element is arranged on a slide rail described in this by axial slide slide carriage, axially slide slide carriage is by driven by servomotor can be along this slide rail rectilinear motion; Axially on slide slide carriage, slide seat body is set, stator retaining element is on slide seat body; Slide seat body be vertically arrange and plate face perpendicular to the slab of a described slide rail, the central through hole of stator retaining element is offered at slab center, central through hole radial outer periphery arranges stepped hole with one heart, elastic positioning element is arranged in stepped hole and is fixed on slide seat body; Elastic positioning element cross section is circular, has the outer rim seam that protrudes vertically slide seat body right side towards right-hand member; The radial outer periphery of elastic positioning element, is also fixedly installed clamping cylinder on slide seat body, clamping cylinder clamping plate are set on the projecting shaft of clamping cylinder, and the initial position of clamping cylinder clamping plate is horizontal cross setting vertical with clamping cylinder projecting shaft.
5. motor numerical control assembling device according to claim 4, is characterized in that: elastic positioning element end face cylindrical and end face flange spigot coordinate with the front end positioning spigot of stator module; Clamping cylinder clamping plate are fixed on stator module on slide seat body.
6. according to the motor numerical control assembling device described in claim 4 or 5, it is characterized in that: on slide seat body, be fixedly installed 2-3 clamping cylinder; In the time that clamping cylinder ante-chamber pressurizes, clamping cylinder clamping plate are longitudinally or in axial linear movement, from horizontal cross position 90-degree rotation, then do rectilinear motion, until the locating flange of clamping motor stator module, in the time that the back cavity of cylinder pressurizes, first clamping cylinder clamping plate do rectilinear motion and unclamp locating flange, and then clamping cylinder clamping plate 90-degree rotation is to horizontal cross position.
7. motor numerical control assembling device according to claim 6, is characterized in that: axially on slide slide carriage, be also provided with horizontal cross guide rail, horizontal cross guide rail and a described guide rail be in the horizontal direction 90 ° vertical; Axially there is cross slide slide slide carriage upper end, and cross slide is connected with axial slide slide carriage by bottom guide groove, and cross slide is driven and can be done horizontal cross feed motion by screw mandrel; Stator support frame and stator high-low regulating are set on cross slide; Slide seat body is fixed on cross slide by stator support frame.
8. according to the motor numerical control assembling device described in claim 1 or 2 or 4 or 5 or 7, it is characterized in that: a described slide rail overlaps with another axial slide rail or be parallel up and down.
9. motor numerical control assembling device according to claim 8, is characterized in that: the headstock comprises the chuck on U-shaped seat and U-shaped seat, and main shaft is through chuck and pass through angle thrust bearing by chuck support.
10. the motor assembly method that adopts one of the claims described motor numerical control assembling device, is characterized in that comprising the steps:
(1) the preparation such as clean, the inspection to all parts of motor and Insulation test work;
(2) after rolling bearing being pre-assembled on the axle at rotor two ends, the end cap of the unsupported end of motor is assembled on the outer ring of unsupported end bearing, forms the rotor assembly just installing; , stator and front end housing, rear end cap are assembled meanwhile, formed the stator module just installing; Front end housing has front end positioning spigot;
(3) utilize stator retaining element to carry out the fixing of stator module and location: by the front end housing positioning spigot endoporus of stator module to the elastic positioning element seam on alignment motor numerical control assembling device, behind seam location, clamping cylinder clamping plate are then yearned for front end rectilinear motion until compress the locating flange of stator module along motor shaft around projecting shaft 90-degree rotation separately, make to be fixed to the slide seat body at motor numerical control assembling device behind stator module location;
(4) rotor assembly is placed between the headstock of motor numerical control assembling device and tailstock and is fixedly clamped: addendum cone stretches in armature spindle front end centre bore, top stretching in the centre bore of armature spindle rear end; Afterwards, rotor holds out against cylinder and stretches out toward front end, drives tailstock and toply moves forward, is contacted to realize rotor assembly location respectively and clamps with top by addendum cone from the compression at armature spindle two ends; Meanwhile, when rotor holds out against cylinder also for the assembling of the motor of different model, adjust position; After tailstock drives top arrival clamping and positioning position, tailstock is locked by locking device; The butterfly spring of top afterbody ensure top all the time with armature spindle rear end centre bore close contact to realize centering;
(5) slide servomotor effect, drives slide seat body to move axially along motor by axial slide slide carriage, and the stator module on slide seat body synchronously moves vertically and the centre bore that makes rotor assembly pass stator module carries out combination and assembles;
Stator module and electric rotor assembly in conjunction with assembling process in, when the rear bearing of rotor assembly enters moment in the rear bearing hole of stator module, certainly lead to interfering edge, now, because stator module is positioned on elastic positioning element, distortion by elastic positioning element under stressed, will inevitably along the direction of interfering edge make stator module according to the journal offset of rotor assembly to realize disalignment compensation of error; Simultaneously, be contained in top meeting in adjusting center positioning sleeve along with rotor assembly swings on the inner conical surface of Morse taper shank front end along the rotate axis of sub-component of the direction of interfering edge, compensation disalignment error, rear bearing packed into smoothly and do not damage bearing, and having avoided rotor assembly magnetic-adsorption on stator module.
CN201410128132.2A 2014-04-01 2014-04-01 Motor numerical control assembling device and method Expired - Fee Related CN103887931B (en)

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Publication number Priority date Publication date Assignee Title
CN104142222A (en) * 2014-08-21 2014-11-12 重庆智超机械有限责任公司 Automatic power generator stator and rotor testing table
CN105449957A (en) * 2015-12-10 2016-03-30 湖北三江航天红阳机电有限公司 Automatic stator and rotor combining machine
CN106067707A (en) * 2016-06-14 2016-11-02 北京精密机电控制设备研究所 A kind of Novel direct wire type electromechanical coupling system and assembly method
CN106451940A (en) * 2016-10-21 2017-02-22 安徽巨自动化装备有限公司 Stator and rotor assembling equipment in new energy motor assembly
CN107742959A (en) * 2017-11-22 2018-02-27 四川金英科技有限责任公司 Water sends out machine rotor yoke block more than one piece one hot cover process
WO2018201454A1 (en) * 2017-05-05 2018-11-08 深圳市鑫华威机电设备有限公司 Stator stabilizing device, and method for same

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CN202861731U (en) * 2012-09-26 2013-04-10 六安江淮电机有限公司 Numerical control device used for stringing rotors by motor
CN203788106U (en) * 2014-04-01 2014-08-20 武汉轻工大学 Motor assembling device

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KR20020084449A (en) * 2001-05-02 2002-11-09 엘지이노텍 주식회사 Apparatus for assembling motor
CN101373913A (en) * 2007-08-20 2009-02-25 许晓华 Fixture for assembling motor complete machine
CN202861731U (en) * 2012-09-26 2013-04-10 六安江淮电机有限公司 Numerical control device used for stringing rotors by motor
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Publication number Priority date Publication date Assignee Title
CN104142222A (en) * 2014-08-21 2014-11-12 重庆智超机械有限责任公司 Automatic power generator stator and rotor testing table
CN104142222B (en) * 2014-08-21 2017-01-18 重庆智超机械有限责任公司 Automatic power generator stator and rotor testing table
CN105449957A (en) * 2015-12-10 2016-03-30 湖北三江航天红阳机电有限公司 Automatic stator and rotor combining machine
CN105449957B (en) * 2015-12-10 2019-05-28 湖北三江航天红阳机电有限公司 A kind of automatic packer of stator rotor
CN106067707A (en) * 2016-06-14 2016-11-02 北京精密机电控制设备研究所 A kind of Novel direct wire type electromechanical coupling system and assembly method
CN106067707B (en) * 2016-06-14 2018-10-09 北京精密机电控制设备研究所 A kind of linear electromechanical servo mechanism and assembly method
CN106451940A (en) * 2016-10-21 2017-02-22 安徽巨自动化装备有限公司 Stator and rotor assembling equipment in new energy motor assembly
CN106451940B (en) * 2016-10-21 2019-03-19 安徽巨一自动化装备有限公司 Rotor together equipment in the assembly of new energy motor
WO2018201454A1 (en) * 2017-05-05 2018-11-08 深圳市鑫华威机电设备有限公司 Stator stabilizing device, and method for same
CN107742959A (en) * 2017-11-22 2018-02-27 四川金英科技有限责任公司 Water sends out machine rotor yoke block more than one piece one hot cover process
CN107742959B (en) * 2017-11-22 2019-09-27 四川金英科技有限责任公司 Water sends out machine rotor magnetic yoke block more than one piece one hot cover process

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