CN203504318U

CN203504318U - Motor rotor and assembly tool thereof

Info

Publication number: CN203504318U
Application number: CN201320581987.1U
Authority: CN
Inventors: 张宏志
Original assignee: Hefei Kaibang Motor Co Ltd
Current assignee: Hefei Kaibang Motor Co Ltd
Priority date: 2013-09-21
Filing date: 2013-09-21
Publication date: 2014-03-26
Anticipated expiration: 2023-09-21

Abstract

The utility model relates to a motor rotor and an assembly tool thereof. A motor rotor includes an iron core and a rubber sleeve disposed on the periphery of the iron core in a manner of injection molding, wherein a steel ring is disposed on an outer circumferential surface of the rubber sleeve; a magnet ring sleeves the periphery of the steel ring; and an end surface of one end of the steel ring is aligned with an end surface of the rubber sleeve. An assembly tool of the motor rotor includes an upper pressure head and a lower pressure seat. Both the center of the upper pressure head and the center of the lower pressure seat are vertically provided with shaft holes for accommodating a rotation shaft. A cavity for accommodating a rotor and a magnet ring is formed between and surrounded by the upper pressure head and the lower pressure seat. End faces, inside the cavity, of the upper pressure head and the lower pressure seat fit an upper end face and a lower end face which are formed during the assembly of the rotor and the magnet ring respectively. Therefore, the end faces, inside the cavity, of the upper pressure head and the lower pressure seat fit and press against the upper end face and the lower end face respectively at the completion of assembly of the rotor. As a result, the assembly of the rotation shaft and the assembly of the magnet ring are completed at the same time, human resources and material resources are saved, and the assembly efficiency of the rotor is also effectively improved.

Description

Rotor and assembly tooling thereof

Technical field

The utility model relates to motor manufacture field, specifically relates to a kind of rotor and assembly tooling thereof.

Background technology

The processing mode of rotor has multiple, specifically can be in the iron core periphery of rotor direct injection molded elastomer cover, rubber sleeve is embedded with magnetic shoe or magnet ring, also can first rubber sleeve injection moulding be completed, and then on the outer peripheral face of rubber sleeve, add cover magnet ring, for first injection molded elastomer, overlap the frock technique of sheathed magnet ring again, due to rubber sleeve with mould magnet ring and be difficult to smooth socket, for addressing this problem, prior art is the sheathed steel ring of periphery at rubber sleeve, so that mould the smooth assembling of magnet ring, but the axial dimension of described steel ring is less than the axial dimension of rubber sleeve, specifically the two ends end face of steel ring is all positioned at the outer peripheral face place of rubber sleeve, also has certain distance with the end face of rubber sleeve, the problem existing is like this: because magnet ring can drive steel ring in process of press in, certain moving axially occurs, namely steel ring and rubber sleeve produce elastic displacement in the axial direction, once discharge like this pressing action of magnet ring, because elastic reaction steel ring certainly will set back, and drive magnet ring to produce certain moving axially, cause like this magnet ring not in fact to be seated.In addition, be generally that rotating shaft and the magnet ring of rotor is that a minute frock has been assembled, not only expend physical resources, and take time and effort, efficiency of assembling is low.

Summary of the invention

Primary and foremost purpose of the present utility model is to provide a kind of rotor that facilitates magnet ring assembling.

For achieving the above object, the technical solution adopted in the utility model is: a kind of rotor, comprise iron core, and the rubber sleeve that is injection-moulded in iron core periphery, it is characterized in that: on the outer peripheral face of described rubber sleeve, be provided with steel ring, the periphery of steel ring is arranged with magnet ring, and one end end face of described steel ring is concordant with the end face of rubber sleeve.

The beneficial effect that adopts above technical scheme to produce is: one end end face of steel ring is concordant with one end end face of rubber sleeve, be convenient to like this to the steel ring end face mutually concordant with rubber sleeve in addition against, while starting to assemble magnet ring from other one end of steel ring, can effectively prevent that steel ring from moving axially, thereby guarantee that magnet ring is pressed onto position smoothly.

Another one object of the present utility model is to provide a kind of assembly tooling of rotor, it comprises seaming chuck and down pressing seat, the center of seaming chuck, down pressing seat is provided with up and down and arranges, for holding the axis hole of rotating shaft, between seaming chuck, down pressing seat, enclose for holding the cavity of rotor and magnet ring, the upper and lower end face that the end face that seaming chuck, down pressing seat are positioned at cavity inside forms during respectively with rotor and magnet ring assembling matches.

Owing to adopting above technical scheme, the first arrangement of rotating shaft and rotor is carried out to just assembling, then be placed on seaming chuck, between down pressing seat, and by rotating shaft, the first arrangement of rotor is carried out to assist location, then magnet ring is placed on to the first arrangement top of rotor, by seaming chuck, down pressing seat encloses to seaming chuck, what when the end face that down pressing seat is positioned at cavity inside has assembled with rotor respectively, formed is upper, lower surface match against, make region and the iron core assembly success of appointment in rotating shaft, magnet ring is assembled to the periphery of the first arrangement that is coated on rotor simultaneously, so complete the assembling of rotating shaft and magnet ring simultaneously, not only use manpower and material resources sparingly, and effectively improve the efficiency of assembling of rotor.

Accompanying drawing explanation

Fig. 1 is the structural representation of rotor;

Fig. 2 is that the A-A of Fig. 1 is to cutaway view;

Fig. 3 is the schematic perspective view of down pressing seat;

Fig. 4 is the structural representation of down pressing seat;

Fig. 5 is the schematic diagram that Fig. 4 adds the first arrangement of rotating shaft and rotor;

Fig. 6 is the schematic diagram that Fig. 5 adds magnet ring and seaming chuck;

The first arrangement of Fig. 7 rotor assembles the view of rotating shaft and magnet ring;

Fig. 8 is the structural representation of core print seat.

Embodiment

A rotor, as illustrated in fig. 1 and 2, comprises iron core 11, and the rubber sleeve 12 that is injection-moulded in iron core 11 peripheries, on the outer peripheral face of described rubber sleeve 12, be provided with steel ring 13, the periphery of steel ring 13 is arranged with magnet ring 14, and one end end face of described steel ring 13 is concordant with one end end face of rubber sleeve 12.One end end face of steel ring 13 is concordant with one end end face of rubber sleeve 12, be convenient to like this to steel ring 13 end face mutually concordant with rubber sleeve 12 in addition against, while starting to assemble magnet ring 14 from other one end of steel ring 13, can effectively prevent that magnet ring 14 from driving steel ring 13 to move axially, while then avoiding steel ring 13 return, cause magnet ring 14 to move axially, thereby guarantee that magnet ring 14 can be seated smoothly.

As further scheme: the aperture bore of the end of described rubber sleeve 12 is greater than the axis hole aperture of iron core 11, and between the axis hole of the aperture of the end of rubber sleeve 12 and iron core 11, form stepped hole 15, stepped hole 15 is set and can, so that the assembly tooling of arranging positions and correcting rotor 10, guarantees that the rotating shaft 16 of rotor 10 is seated.

Further, for guaranteeing that magnet ring 14 can be smooth, assembling exactly, the technical solution adopted in the utility model is: the endoporus of described magnet ring 14 is provided with first, second step hole 141, 142, first step hole 141 is positioned at rubber sleeve 12 one end concordant with the end face of steel ring 13, second step hole 142 is positioned at the middle part of magnet ring 14, also the endoporus one end that can be understood as magnet ring 14 is closing in shape, the other end is open state, the place end that is the first step hole 141 of magnet ring 14 forms uncovered shape, and magnet ring 14 locates just naturally to form closing in shape away from the aperture of the one end in first step hole 141, at the bottom of the hole in first step hole 141 with rubber sleeve 12, the mutually concordant end face of steel ring 13 is concordant, be conducive to so the preliminary assembling of magnet ring 14, and the periphery of the hole wall in second step hole 142 and steel ring 13 matches, at the bottom of the hole in second step hole 142, be resisted against like this on one end end face of steel ring 13, to magnet ring, 14 assemblings are located effectively.

The invention also discloses a kind of assembly tooling of electronics rotor, it comprises seaming chuck 20 and down pressing seat 30, the center of seaming chuck 20 and down pressing seat 30 is provided with up and down and arranges, for holding the axis hole of the rotating shaft 16 of rotor 10, between seaming chuck 20 and down pressing seat 30, enclose for holding the cavity of rotor 10, and the end face that seaming chuck 20 and down pressing seat 30 are positioned at cavity inside matches with the upper and lower end face of rotor 10 respectively.During use, rotating shaft 16 is carried out to just assembling with the first arrangement 10A of rotor 10, then be placed between seaming chuck 20 and down pressing seat 30, and carry out assist location by the first arrangement 10A of 16 pairs of rotors 10 of rotating shaft, in conjunction with Fig. 1, shown in 5 and 6, the first arrangement 10A of rotor 10 described here can be understood as and comprises its iron core 11, be injection-moulded in the rubber sleeve 12 of iron core 11 peripheries, and be arranged on the steel ring 13 on the outer peripheral face of rubber sleeve 12, then magnet ring 14 is placed on to the just top of arrangement 10A, and by the chamber wall that seaming chuck 20 and down pressing seat 30 enclose the cavity forming, magnet ring 14 is positioned and correcting, finally carry out the pressing action of push-down head 20, until that the end face of the cavity inside that seaming chuck 20 and down pressing seat 30 enclose has formed while having assembled with rotor 16 respectively is upper, lower surface match against, on the axle body of rotating shaft 10, be furnished with so shallow tooth spline region 161 assemble successfully with iron core 11, and magnet ring 14 is assembled to and is coated on the just periphery of arrangement 10A, so complete the assembling of rotating shaft 16 and magnet ring 14 simultaneously, not only use manpower and material resources sparingly, and effectively improve the efficiency of assembling of rotor 10.

Further, between the axis hole of the upper end surface of described down pressing seat 30 and down pressing seat 30, form shoulder hole 32, described shoulder hole 32 is for holding the cavity of rotor 10, the hole wall of shoulder hole 32 coincide with the periphery wall of magnet ring 14 and forms guiding and coordinates, can first the first arrangement 10A that is just equipped with rotating shaft 16 be put into the shoulder hole 32 of down pressing seat 30 like this, and by the hole wall of shoulder hole 32, the periphery wall of magnet ring 14 is positioned and correcting, and then carry out the pressing action of seaming chuck 20.

Further, the place, lower surface of described seaming chuck 20 is provided with the first bulge loop 21, the bottom, hole of the shoulder hole 32 of down pressing seat 30 is provided with the second bulge loop 31, the endoporus of the first and

second bulge loops

21,31 all overlaps with the axis hole of seaming chuck, down pressing seat 20,30, stepped hole 15 tablings of the end of the first and

second bulge loops

21,31 and rotor 10, the first arrangement 10A to rotor 10 when the layout of the first and

second bulge loops

21,31 encloses seaming chuck 20 and down pressing seat 30 plays positioning action accurately.

Further, described seaming chuck 20 comprises internal mold 22 and the external mold 23 of socket, the lower end of internal mold 22 is the first bulge loop 21, and the first bulge loop 21 protrudes out to the below of the lower surface of external mold 23, internal mold 42 and external mold 33 adopts socket modes to form to make both can select different materials processing to make, such as internal mold is selected Cr12 material, can improve the structural strength of the first bulge loop 31 like this, being conducive to the first bulge loop 31 presses down the stepped hole 15 putting in place with the end of rotor 10 and coincide chimeric, and described external mold 33 can be selected 304 stainless steels, in the time of can avoiding like this end face of external mold 33 to contact with magnet ring 20, inhale mutually, affect assembly manipulation.

Further, the bottom, hole of the shoulder hole 32 of described down pressing seat 30 is provided with the 3rd bulge loop 33, the endoporus of the 3rd bulge loop 33 overlaps with the axis hole of down pressing seat 30, the external diameter of the 3rd bulge loop 33 is greater than the external diameter of the second bulge loop 31, and the end face of the 3rd bulge loop 33 is between the bottom surface at the bottom of the end face of the second bulge loop 31 and the hole of shoulder hole 32, the mutually concordant end face of sheathed highly consistent rigidity packing ring 40, the three bulge loops 33, the rigidity packing ring 40 with it of the outer peripheral face of described the 3rd bulge loop 33 to the rubber sleeve 12 of rotor 10 end face mutually concordant with steel ring 13 form against.The layout of the 3rd bulge loop 33 and rigidity packing ring 40 can be supported with the mutually concordant end face of steel ring 13 rubber sleeve 12 of rotor 10, the height of the end face that rubber sleeve 12 and steel ring 13 are mutually concordant is between the bottom surface at the bottom of the end face of the second bulge loop 31 and the hole of shoulder hole 32, the height that is to say the end face that rubber sleeve 12 is mutually concordant with steel ring 13 higher than the hole of shoulder hole 32 at the bottom of height, can guarantee that like this magnet ring 14 can be seated, concrete, described rigidity packing ring 40 is 304 stainless steel materials, can avoid like this rigidity packing ring 40 and magnet ring 14 to inhale mutually, moreover, the layout of described rigidity packing ring 40 can guarantee support strength, avoid the rubber sleeve 12 of rotor 10 and steel ring 13 circumferentially between move axially.

Further, on the hole wall of the shoulder hole 32 of described down pressing seat 30, from the end in aperture, two breach 34 have been arranged symmetrically with downwards, the layout of two breach 34 can facilitate the preliminary placement of rotor to be assembled 10, and the taking-up of having assembled rear rotor 10 of rotating shaft 16 and magnet ring 14.

Further last, described down pressing seat 30 comprises base 30A and the core print seat 30B being mutually nested, and between the upper surface of described core print seat 30B and the upper end surface of base 30A, forms shoulder hole 32, and described second,

third bulge loop

31,33 is positioned at the upper end surface of core print seat 30B.Adopt base 30A and core print seat 30B to coordinate and form down pressing seat 30, not only facilitate the processing of down pressing seat 30, and base 30A and core print seat 30B can adopt different materials processing to make, as base adopts 304 stainless steel materials, can avoid like this hole wall of the shoulder hole 32 on magnet ring 14 and base 30A to inhale mutually, facilitate the assembling of magnet ring 14, and core print seat adopts Cr12 material, can improve like this structural strength of the second and the

3rd bulge loop

31,33.

Claims

1. a rotor, comprise iron core (11), and the rubber sleeve (12) that is injection-moulded in iron core (11) periphery, it is characterized in that: on the outer peripheral face of described rubber sleeve (12), be provided with steel ring (13), the periphery of steel ring (13) is arranged with magnet ring (14), and one end end face of described steel ring (13) is concordant with one end end face of rubber sleeve (12).

2. rotor according to claim 1, it is characterized in that: the aperture bore of the end of described rubber sleeve (12) is greater than the axis hole aperture of iron core (11), and form stepped hole (15) between the aperture of the end of rubber sleeve (12) and the axis hole of iron core (11).

3. rotor according to claim 1, it is characterized in that: the endoporus of described magnet ring (14) is provided with first, second stepped hole (141,142), first step hole (141) is positioned at concordant one end of end face of rubber sleeve (12) and steel ring (13), second step hole (142) is positioned at the middle part of magnet ring (14), end face mutually concordant with rubber sleeve (12), steel ring (13) at the bottom of the hole in first step hole (141) is concordant, and the hole wall of second step hole (142) and the periphery of steel ring match.

4. the assembly tooling of a rotor, it is characterized in that: comprise seaming chuck (20) and down pressing seat (30), the center of seaming chuck, down pressing seat (20,30) is provided with up and down and arranges, for holding the axis hole of the rotating shaft (16) of rotor (10), between seaming chuck, down pressing seat (20,30), enclose for holding the cavity of rotor (10), the end face that seaming chuck, down pressing seat (20,30) are positioned at cavity inside matches with the upper and lower end face of rotor (10) respectively.

5. assembly tooling according to claim 4, it is characterized in that: between the upper end surface of described down pressing seat (30) and the axis hole of down pressing seat (30), form shoulder hole (32), described shoulder hole (32) is for holding the cavity of rotor (10), and the hole wall of shoulder hole (32) coincide with the periphery wall of magnet ring (14) and forms guiding and coordinates.

6. assembly tooling according to claim 5, it is characterized in that: the place, lower surface of described seaming chuck (20) is provided with the first bulge loop (21), the bottom, hole of the shoulder hole (32) of down pressing seat (30) is provided with the second bulge loop (31), the endoporus of first, second bulge loop (21,31) all overlaps with the axis hole of seaming chuck, down pressing seat (20,30), stepped hole (15) tabling of the end of first, second bulge loop (21,31) and rotor (10).

7. according to the assembly tooling described in claim 4 or 6, it is characterized in that: described seaming chuck (20) comprises internal mold (22) and the external mold (23) of socket, the lower end of internal mold (22) is the first bulge loop (21), and the first bulge loop (21) protrudes out to the below of the lower surface of external mold (23).

8. assembly tooling according to claim 6, it is characterized in that: the bottom, hole of the shoulder hole (32) of described down pressing seat (30) is provided with the 3rd bulge loop (33), the endoporus of the 3rd bulge loop (33) overlaps with the axis hole of down pressing seat (30), the external diameter of the 3rd bulge loop (33) is greater than the external diameter of the second bulge loop (31), and the end face of the 3rd bulge loop (33) is positioned between the bottom surface at the bottom of the end face of the second bulge loop (31) and the hole of shoulder hole (32), the sheathed highly consistent rigidity packing ring (40) with it of the outer peripheral face of described the 3rd bulge loop (33), the 3rd bulge loop (33), the mutually concordant end face of rigidity packing ring (40) to the rubber sleeve of rotor (10) (12) end face mutually concordant with steel ring (13) form against.

9. according to the assembly tooling described in claim 4 or 6 or 8, it is characterized in that: on the hole wall of the shoulder hole (32) of described down pressing seat (30), from the end in aperture, be arranged symmetrically with two breach (34) downwards.

10. according to the assembly tooling described in claim 4 or 6 or 8, it is characterized in that: described down pressing seat (30) comprises base (30A) and the core print seat (30B) being mutually nested, between the upper end surface of the upper surface of described core print seat (30B) and base (30A), form shoulder hole (32), described second, third bulge loop (31,33) is positioned at the upper end surface of core print seat (30B).