CN102780326A - Tool for assembling photoelectric turntable motor - Google Patents
Tool for assembling photoelectric turntable motor Download PDFInfo
- Publication number
- CN102780326A CN102780326A CN2012102694145A CN201210269414A CN102780326A CN 102780326 A CN102780326 A CN 102780326A CN 2012102694145 A CN2012102694145 A CN 2012102694145A CN 201210269414 A CN201210269414 A CN 201210269414A CN 102780326 A CN102780326 A CN 102780326A
- Authority
- CN
- China
- Prior art keywords
- thread
- lifting nut
- hole
- screw
- frock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a tool for assembling a photoelectric turntable motor, which belongs to the technical field of mechanical assembling. The tool is mainly and technically characterized in that a centering mandrel is in matched connection with a dead axle sunken platform of a photoelectric turntable, a lifting lead screw is in matched connection with the centering mandrel, so a reference center is provided for the tool; the two ends of a central hole of a projection cylinder of a cross plate are respectively provided with a conical surface with a circle of steel balls, so the cross plate, the lifting lead screw, a lifting nut and a pressing ring form a rotating shaft system; and one ends of four draw bars are fixedly connected with four narrow plates of the cross plate, the other ends of the four draw bars are fixedly connected with a motor stator, one end of a lever is connected with the lifting nut, and the motor stator can be lifted and descended through pushing the lever to be accurately installed in a dead axle of the photoelectric turntable. The tool is used for solving the problems of conveniently and reliably mounting the photoelectric turntable motor, and has the characteristics of simple structure, convenience in carrying, high working efficiency and the like.
Description
Technical field
The invention belongs to the mechanical assembly technique field, relate generally to a kind of frock, relate in particular to a kind of frock that is used to assemble the photoelectricity turntable motor.
Background technology
The photoelectricity turntable generally is made up of turntable main casing, dead axle, moving axis, bearing and motor etc., and can realize that axle system rotates.Motor in the photoelectricity turntable is the important devices of photoelectricity turntable, is used for turntable is driven.The assembling of motor in the photoelectricity turntable is the important process process in the photoelectricity turntable assembling process.At first the rotor with motor is assemblied on the moving axis, and then the stator of motor is assemblied on the main casing, refills the distribution brush and waits other smallclothes.Because motor stator, rotor size is bigger and heavier, when assembling, is the positioning accuracy that is difficult to guarantee motor stator and rotor if only rely on simple frock; And when stator and rotor near the time because magnetic attraction is very big between the rotor, be difficult to stator is directly placed the position location; Need just can put in place through repeatedly inferior repeatedly; Efficiency of assembling is very low, and in assembling process repeatedly, can increase the number of times that collides with between stator and the rotor again; The stator magnet of so very easily damaging cylinder, and finally have influence on the quality of motor.
One Chinese patent application 201110453907 discloses " a kind of motor assembly tooling "; This frock is made up of base plate, stator holder, riser, lowering or hoisting gear, rotor holder; Stator holder and riser are installed on the base plate, and lowering or hoisting gear, rotor holder are installed on the riser.Can earlier the photoelectricity turntable be placed on the base plate during assembling, rotor is fixed on the rotor holder again, the operation lowering or hoisting gear descends rotor is assemblied in the stator.Yet there is following defective in this frock: 1) because this frock has adopted lowering or hoisting gear, volume is bigger, can't freely carry; Can only the photoelectricity turntable be placed on the frock when 2) using rotor and the stator of this frock assembling photoelectricity turntable, also want the position of manual adjustment photoelectricity turntable to be located at the stator holder center simultaneously, so the operating process more complicated; 3) be fixed on the riser owing to lowering or hoisting gear, and the rotor holder is fixed on the lowering or hoisting gear, so this restriction of riser can't realize the motor of large-size photoelectricity turntable is assembled.
Summary of the invention
The technical problem that the present invention will solve is, to the problem that exists in the prior art, for assembling photoelectricity turntable motor provide a kind of simple in structure, operation is easy to carry, locate reliable frock.
Frock provided by the invention comprises centering mandrel, elevating screw, lifting nut, four pull bars, four-bladed vane, four nuts, trim ring, tommy bar, some steel balls; Said centering mandrel has centre bore, and the hypomere of centre bore is that screw, port are the hole enlargement positioning table; Said elevating screw is the double end trapezoidal thread bar that an end has protruding screw rod, has the location end face between protruding screw rod and the double end trapezoidal thread; One end of said lifting nut has evagination and has one section external screw thread along the other end, has a hole on the external thread section, and the inner hole thread of lifting nut is the double end trapezoidal thread; Said pull bar is that cylindrical bar and two ends have the first thread protrusion axle and the second thread protrusion axle respectively; Said four-bladed vane contains four narrow boatswain chairs being the cross layout and an end at cross center has the projection cylinder; The projection cylinder has the unthreaded hole that two ends communicate; It is 90 ° the conical surface that two ports of unthreaded hole are equipped with cone angle, and the external end head place of each narrow boatswain chair all has via hole; Said lifting nut with evagination along under mode be connected in the upper end of said elevating screw; The unthreaded hole of said four-bladed vane is enclosed within on the external cylindrical surface of lifting nut, and respectively places a circle steel ball on two said conical surfaces; Said trim ring is being connected with the external thread section of lifting nut above the four-bladed vane and is being pressed on the projection cylinder end face of said four-bladed vane; The first thread protrusion axle of said four pull bars is connected with nut after passing the via hole of four narrow boatswain chairs from bottom to top respectively; When using said frock; Said centering mandrel is connected in the heavy stand of photoelectricity turntable dead axle; The protruding screw rod of said elevating screw is connected with the screw of centering mandrel; The location end face of elevating screw contacts with said hole enlargement positioning table, and said tommy bar is connected with the silk hole of lifting nut, and the second thread protrusion axle of said four pull bars links to each other with four screws of motor stator respectively.
Beneficial effect of the present invention is embodied in the following aspects:
(1) frock provided by the invention has been used the center of photoelectricity turntable shaft architecture dexterously; Frock is connected on the photoelectricity turntable; Can under the prerequisite of moving photoconductor turntable not, carry out the assembling of motor stator, thereby solve the motor assembly problem of large-size photoelectricity turntable.
(2) the present invention's dead axle of being through centering mandrel and turntable shaft is connected and being connected of elevating screw and centering mandrel; Realized the centering of frock and photoelectricity turntable; Lifting nut links to each other with the stator of motor through four pull bars; When lifting nut is connected with elevating screw, just realized the reliable centering of motor stator and photoelectricity turntable that is rotor.
(3) frock provided by the invention is formed rotary axis through lifting nut, four-bladed vane, steel ball, trim ring, guarantees that motor stator can not rotate in assembling process; Lifting nut is connected through trapezoidal thread with elevating screw, has realized the elevating function of frock, in addition; Through handle installation on lifting nut, can make operating personnel carry out the descending operation of frock very like a cork, like this in the motor assembling process; It is high both to have improved efficiency of assembling; Alleviate labor strength, and guaranteed the steady up-down of motor, stopped the appearance of stator in the artificial assembling and positioning process, rotor magnetic cylinder collision cleft phenomenon.
(4) in the present invention; Being connected be between lifting nut and the elevating screw, between elevating screw and the centering mandrel and between centering mandrel and the photoelectricity turntable is threaded; Easily installation and removal; Thereby, characteristics simple to operate, portable that the present invention has, the motor that can satisfy in the photoelectricity turntable after-sales service process removes and installs.
Description of drawings
Fig. 1 is that the structure of frock of the present invention is formed sketch map.
Fig. 2 is the structural representation of centering mandrel shown in Fig. 1.
Fig. 3 is the structural representation of elevating screw shown in Fig. 1.
Fig. 4 is the structural representation of pull bar shown in Fig. 1.
Fig. 5 is the structural representation of lifting nut shown in Fig. 1.
Fig. 6 is the structural representation of four-bladed vane shown in Fig. 1.
Fig. 7 be frock of the present invention in use with the sketch map that concerns of photoelectricity turntable.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the present invention is made further detailed description.
As shown in Figure 1, the frock of the preferred embodiment of the present invention comprises centering mandrel 1, elevating screw 2, lifting nut 3, four pull bars 4, four-bladed vane 5, four nuts 6, trim ring 7, one or two tommy bars 8, some steel balls 9.Centering mandrel 1 has four via hole 1-1 and centre bore 1-2 (referring to Fig. 2); The hypomere of centre bore is that screw, port are the hole enlargement positioning table; Four via hole 1-1 be distributed on the concentric circumference of centre bore 1-2 on, this circumferential size and via diameter are corresponding with the technology silk hole on the photoelectricity turntable motor dead axle.The heavy stand of the external diameter of centering mandrel 1 and photoelectricity turntable dead axle is complementary.Elevating screw 2 is a double end trapezoidal thread bar (referring to Fig. 3), to carry bigger axial load and to have screw thread rising or falling speed faster; Its bottom has protruding screw rod 2-1 and location end face 2-2; The screw thread of protruding screw rod 2-1 and the screw of centering mandrel 1 are complementary; Double end trapezoidal thread and protruding screw rod 2-1 are 0.05mm with location end face 2-2 morpheme mismachining tolerance, to guarantee the correct centering in the motor assembling.Pull bar 4 has the first thread protrusion axle 4-1 and the second thread protrusion axle 4-2 (referring to Fig. 4) respectively for cylindrical bar and two ends; The concrete size of the external diameter φ of pull bar 4 and the first thread protrusion axle 4-1 is decided according to the size of motor magnetic force; So that pull bar 4 has enough intensity, avoid the phenomenon that when motor assembles, occurs bending and deformation.The silk hole that the size of the second thread protrusion axle 4-2 and motor stator carry is complementary, to realize the secure fixation of motor stator in the assembling process.One end of lifting nut 3 has evagination along 3-3 (referring to Fig. 5), and the other end has one section external screw thread, have on the external thread section two radially and the symmetry the silk hole 3-1, the inner hole thread of lifting nut 3 is the double end trapezoidal thread.The external cylindrical surface 3-2 of lifting nut 3 and perpendicular adjacent evagination are along the inner face Quenching Treatment of 3-3 and guarantee that hardness (HRC) is between 58～63.Four-bladed vane 5 is used for the lifting of motor stator and supports (referring to Fig. 6), and it contains four narrow boatswain chair 5-2 being the cross layout and an end at cross center has the projection cylinder, to guarantee to have enough reliabilities and stability.The projection cylinder has the unthreaded hole that two ends communicate, and it is 90 ° conical surface 5-3 that two ports of unthreaded hole are equipped with cone angle, and conical surface 5-3 Quenching Treatment also guarantees that HRC is between 58～63; The external end head place of each narrow boatswain chair 5-2 all has via hole 5-1, and the size of via hole 5-1 should guarantee that the first thread protrusion axle 4-1 of pull bar 4 passes smoothly.Lifting nut 3 with evagination along 3-3 under mode be connected in the upper end of elevating screw 2; The unthreaded hole of four-bladed vane 5 is enclosed within on the external cylindrical surface of lifting nut 3, and respectively places a circle steel ball 9 on two conical surface 5-3; Trim ring 7 is connected with the external thread section spiral shell of lifting nut 3 above four-bladed vane 5, and an end face of trim ring 7 is pressed on the projection cylinder end face of four-bladed vane 5; The first thread protrusion axle 4-1 of four pull bars 4 is threaded with nut 6 after passing the via hole 5-1 of four narrow boatswain chair 5-2 from bottom to top respectively; The lower end of elevating screw 2 is connected with the centre bore 1-2 of centering mandrel 1, and wherein, protruding screw rod 2-1 is connected with the screw of centre bore 1-2, and location end face 2-2 is positioned the hole enlargement positioning table place of centre bore 1-2.Tommy bar 8 is that an end has the externally threaded body of rod, and the silk hole 3-1 on its end of thread and the lifting nut 3 is connected.
According to shown in Figure 8, the motor assembling process that employing the present invention carries out the photoelectricity turntable is following:
(1) centering mandrel 1 is unloaded from elevating screw 2 after, be connected in the heavy stand of photoelectricity turntable dead axle 13 through four the via hole 1-1 of centering mandrel 1 and the screw of respective numbers, thereby realized the accurate location of centering mandrel 1 with dead axle 13;
(2) rotor 11 is enclosed within the photoelectricity turntable rotating shaft 12, assembled end place and both that an end face of rotor 11 is positioned at rotating shaft 12 are connected through screw.
(3) the second thread protrusion axle 4-2 with four pull bars 4 links to each other with four screws of motor stator 10 respectively, and guarantees that the motor stator end face is vertical with elevating screw 2.
(4) again the lower end of elevating screw 2 is connected with the centre bore 1-2 of centering mandrel 1, wherein, protruding screw rod 2-1 is connected with the screw of centre bore 1-2, and location end face 2-2 is positioned the hole enlargement positioning table place of centre bore 1-2.
(5) with the end of thread of one or two tommy bar 8 with after a silk hole 3-1 on the lifting nut 3 is connected, rotation lifting nut 3 makes the motor stator fitting surface of motor stator 10 translations dropping to photoelectricity turntable dead axle 13;
(6) pull down hold-down nut 6 on the pull bar 4, make elevating screw 2 break away from centering mandrels 1 then, the centering mandrel 1 of dismantling is at last moved away from erecting yard with being about to frock.
(7) through screw motor stator 10 and dead axle 13 are connected.
Claims (3)
1. frock that is used to assemble the photoelectricity turntable motor, it is characterized in that: it comprises centering mandrel (1), elevating screw (2), lifting nut (3), four pull bars (4), four-bladed vane (5), four nuts (6), trim ring (7), tommy bar (8), some steel balls (9); Said centering mandrel (1) has centre bore (1-2), and the hypomere of centre bore is that screw, port are the hole enlargement positioning table; Said elevating screw (2) is the double end trapezoidal thread bar that an end has protruding screw rod 2-1, has location end face 2-2 between protruding screw rod (2-1) and the double end trapezoidal thread; One end of said lifting nut (3) has evagination and has one section external screw thread along the 3-3 other end, has a hole (3-1) on the external thread section, and the inner hole thread of lifting nut (3) is the double end trapezoidal thread; Said pull bar (4) has the first thread protrusion axle (4-1) and the second thread protrusion axle (4-2) respectively for cylindrical bar and two ends; Said four-bladed vane (5) contains four narrow boatswain chairs (5-2) of being the cross layout and an end at cross center has the projection cylinder; The projection cylinder has the unthreaded hole that two ends communicate; It is 90 ° the conical surface (5-3) that two ports of unthreaded hole are equipped with cone angle, and the external end head place of each narrow boatswain chair (5-2) all has via hole (5-1); Said lifting nut (3) with evagination along (3-1) under mode be connected in the upper end of said elevating screw (2); The unthreaded hole of said four-bladed vane (5) is enclosed within on the external cylindrical surface of lifting nut (3), and respectively places a circle steel ball (9) on two said conical surfaces (5-3); Said trim ring (7) is connected with the external thread section of lifting nut (3) in the top of four-bladed vane (5) and is pressed on the projection cylinder end face of said four-bladed vane (5); Via hole (5-1) back that the first thread protrusion axle (4-1) of said four pull bars (4) passes four narrow boatswain chairs (5-2) from bottom to top respectively is connected with nut (6); When using said frock; Said centering mandrel (1) is connected in the heavy stand of photoelectricity turntable dead axle (13); The protruding screw rod (2-1) of said elevating screw (2) is connected with the screw of centering mandrel (1); The location end face (2-2) of elevating screw (2) contacts with said hole enlargement positioning table, and said tommy bar (8) is connected with the silk hole (3-1) of lifting nut (3), and the second thread protrusion axle (4-2) of said four pull bars (4) links to each other with four screws of motor stator (10) respectively.
2. the frock that is used to assemble the photoelectricity turntable motor according to claim 1 is characterized in that: the double end trapezoidal thread of said elevating screw (2) and be 0.05mm with the morpheme mismachining tolerance of location end face (2-2), said protruding screw rod (2-1) and location end face (2-2).
3. the frock that is used to assemble the photoelectricity turntable motor according to claim 1 is characterized in that: the external cylindrical surface (3-2) of said lifting nut (3) and perpendicular adjacent evagination along the inner face Quenching Treatment of (3-3) and hardness between 58～63; The said conical surface (5-3) Quenching Treatment and hardness are between 58～63.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269414.5A CN102780326B (en) | 2012-08-01 | 2012-08-01 | Tool for assembling photoelectric turntable motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269414.5A CN102780326B (en) | 2012-08-01 | 2012-08-01 | Tool for assembling photoelectric turntable motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102780326A true CN102780326A (en) | 2012-11-14 |
| CN102780326B CN102780326B (en) | 2014-09-17 |
Family
ID=47125127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210269414.5A Active CN102780326B (en) | 2012-08-01 | 2012-08-01 | Tool for assembling photoelectric turntable motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102780326B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103294066A (en) * | 2013-05-31 | 2013-09-11 | 西安应用光学研究所 | Azimuth device applicable to vehicular photoelectric turntable |
| CN107404200A (en) * | 2017-09-19 | 2017-11-28 | 长电科技（滁州）有限公司 | A kind of motor provision for disengagement and method for dismounting |
| CN107482862A (en) * | 2017-08-21 | 2017-12-15 | 江西中船航海仪器有限公司 | A kind of separately-loaded torque motor erector |
| CN108614211A (en) * | 2018-03-30 | 2018-10-02 | 北京航天万鸿高科技有限公司 | The Universal testing device for preventing separately-loaded permanent magnet torque motor rotor from colliding |
| CN110138153A (en) * | 2019-06-01 | 2019-08-16 | 李静 | A kind of rotor kludge of full-automatic stepper motor |
| CN111181327A (en) * | 2020-01-13 | 2020-05-19 | 中国电子科技集团公司第十四研究所 | Tool for assembling torque motor and actuating mechanism and assembling method |
| CN113067440A (en) * | 2021-03-11 | 2021-07-02 | 西安中车永电捷力风能有限公司 | Tool for assembling wind driven generator and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04190660A (en) * | 1990-11-22 | 1992-07-09 | Toshiba Corp | Method of assembling an disassembling vertical axis type rotary electric machine |
| CN1481063A (en) * | 2003-01-25 | 2004-03-10 | 株洲九方自动化装备实业有限公司 | Method for vertical assembling stator and rotor of electrical motor in large and medium size |
| CN102299588A (en) * | 2011-08-31 | 2011-12-28 | 广东明阳风电产业集团有限公司 | Method for assembling and positioning permanent magnet wind-driven generator |
| CN102412669A (en) * | 2011-11-17 | 2012-04-11 | 广东明阳风电产业集团有限公司 | Assembling and positioning method based on rotor transmission shaft structure of permanent magnet wind-driven generator |
| CN102420506A (en) * | 2011-12-30 | 2012-04-18 | 许晓华 | Tool for assembly of motor |
-
2012
- 2012-08-01 CN CN201210269414.5A patent/CN102780326B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04190660A (en) * | 1990-11-22 | 1992-07-09 | Toshiba Corp | Method of assembling an disassembling vertical axis type rotary electric machine |
| CN1481063A (en) * | 2003-01-25 | 2004-03-10 | 株洲九方自动化装备实业有限公司 | Method for vertical assembling stator and rotor of electrical motor in large and medium size |
| CN102299588A (en) * | 2011-08-31 | 2011-12-28 | 广东明阳风电产业集团有限公司 | Method for assembling and positioning permanent magnet wind-driven generator |
| CN102412669A (en) * | 2011-11-17 | 2012-04-11 | 广东明阳风电产业集团有限公司 | Assembling and positioning method based on rotor transmission shaft structure of permanent magnet wind-driven generator |
| CN102420506A (en) * | 2011-12-30 | 2012-04-18 | 许晓华 | Tool for assembly of motor |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103294066A (en) * | 2013-05-31 | 2013-09-11 | 西安应用光学研究所 | Azimuth device applicable to vehicular photoelectric turntable |
| CN103294066B (en) * | 2013-05-31 | 2015-06-03 | 西安应用光学研究所 | Azimuth device applicable to vehicular photoelectric turntable |
| CN107482862A (en) * | 2017-08-21 | 2017-12-15 | 江西中船航海仪器有限公司 | A kind of separately-loaded torque motor erector |
| CN107404200A (en) * | 2017-09-19 | 2017-11-28 | 长电科技（滁州）有限公司 | A kind of motor provision for disengagement and method for dismounting |
| CN108614211A (en) * | 2018-03-30 | 2018-10-02 | 北京航天万鸿高科技有限公司 | The Universal testing device for preventing separately-loaded permanent magnet torque motor rotor from colliding |
| CN108614211B (en) * | 2018-03-30 | 2020-10-23 | 北京航天万鸿高科技有限公司 | General type testing arrangement for preventing sub-package permanent magnet torque motor stator and rotor collision |
| CN110138153A (en) * | 2019-06-01 | 2019-08-16 | 李静 | A kind of rotor kludge of full-automatic stepper motor |
| CN111181327A (en) * | 2020-01-13 | 2020-05-19 | 中国电子科技集团公司第十四研究所 | Tool for assembling torque motor and actuating mechanism and assembling method |
| CN113067440A (en) * | 2021-03-11 | 2021-07-02 | 西安中车永电捷力风能有限公司 | Tool for assembling wind driven generator and using method thereof |
| CN113067440B (en) * | 2021-03-11 | 2024-03-26 | 西安中车永电捷力风能有限公司 | Tool for assembling wind driven generator and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102780326B (en) | 2014-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102780326B (en) | Tool for assembling photoelectric turntable motor | |
| CN203764843U (en) | Metal barrel cover crimping machine | |
| CN104384562A (en) | Rotary positioning drilling clamp | |
| CN109141332A (en) | A kind of 3-D scanning precision component dimension reconfiguration device | |
| CN204321630U (en) | A kind of end cover of automobile generator workpiece machining clamp | |
| CN203119713U (en) | Assembly fixture of vehicle permanent magnet motor rotor | |
| CN209777908U (en) | copper wire winding machine | |
| CN108237493B (en) | A kind of wheel hub detection auxiliary device | |
| CN104315104A (en) | Dual-purpose transmission device | |
| CN103986284A (en) | Motor rotor assembly fixture and assembly method thereof | |
| CN108581591B (en) | Jacking rotary accurate dividing device | |
| CN201058401Y (en) | Locating gyration support | |
| CN102689865A (en) | Star wheel set device of automatic capping machine | |
| CN214684088U (en) | Forging equipment with high flange forging uniformity | |
| CN105729151B (en) | A kind of inner hole of workpiece positioning tool | |
| CN208337353U (en) | A kind of Horizontal permanent-magnetic submersible motor changer | |
| CN201680949U (en) | Balance test device for runner hub of mixed-flow hydraulic generator | |
| CN213771099U (en) | Adjustable miniature lifting device | |
| CN104984859B (en) | A kind of automatic rotating device for the spraying of round piece end face | |
| CN201182994Y (en) | Easy-to-dismount flexible iron stand | |
| CN209986462U (en) | Vertical device for welding steel pipe stand column and flange of cantilever crane | |
| CN208337368U (en) | A kind of concentric regulating device of Horizontal permanent-magnetic submersible motor changer | |
| CN211544912U (en) | Multifunctional rotary worktable | |
| CN203526937U (en) | Assembly device for cap screwing arm shaft sleeve | |
| CN216096200U (en) | A flaring device for new forms of energy electric motor rotor processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |