CN112260491B - Method for manufacturing rotor of coreless linear motor - Google Patents
Method for manufacturing rotor of coreless linear motor Download PDFInfo
- Publication number
- CN112260491B CN112260491B CN202011055113.3A CN202011055113A CN112260491B CN 112260491 B CN112260491 B CN 112260491B CN 202011055113 A CN202011055113 A CN 202011055113A CN 112260491 B CN112260491 B CN 112260491B
- Authority
- CN
- China
- Prior art keywords
- mold
- coil
- linear motor
- rotor
- upper cover
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a method for manufacturing a rotor of a coreless linear motor, which comprises the following steps: firstly, winding a coil on a designed winding core mould through a winding process and solidifying to form a 0-shaped whole; and step two, a complete rotor is encapsulated by the wound coil through designing an encapsulation mold. The invention can effectively realize the manufacture of the coil and the rotor by designing a set of complete rotor manufacturing method, and provides a structural basis for the good electromagnetic performance of the coreless linear motor.
Description
Technical Field
The invention belongs to the technical field of motors, relates to a linear motor, and particularly relates to a method for manufacturing a rotor of a coreless linear motor.
Background
The linear motor has the advantages of simple structure, high positioning precision, high response speed, safe and reliable work and the like, and is widely applied to the industries of transportation, numerical control processing and the like. In application, the highest feed speed which can be achieved by the traditional transmission form of 'rotating motor + ball screw' is 30m/min, and the acceleration is only 3m/s 2 . The linear motor drives the workbench, the speed is 30 times of that of the traditional transmission mode, the acceleration is 10 times of that of the traditional transmission mode, and the maximum acceleration can reach 10 g; the rigidity is improved by 7 times; the workbench directly driven by the linear motor has no reverse working dead zone; because the motor has small transmission inertia, a linear servo system formed by the motor can achieve higher frequency response.
The linear motor may be classified into a cylindrical linear motor, a U-shaped groove linear motor, and a flat plate linear motor. The flat linear motor is the most widely applied and becomes the research focus of various linear motors, and the slotless and ironless motor has small thrust but stable control speed, so that the flat linear motor is the application scene of the invention.
The main problems and drawbacks of the prior art include:
the slot-free and iron-core-free linear motor requires small air gaps between the rotor and the stator due to the characteristics of the slot-free and iron-core-free linear motor, and the manufacturing of the rotor is a technical difficulty of the whole motor. The manufacturing of the mover with proper size, accurate coil positioning position, single encapsulation side of only 0.3mm and complete glue layer is a working procedure of the mover which needs to be overcome.
Disclosure of Invention
Aiming at the problems and defects in the prior art, the invention provides a method for manufacturing a rotor of a coreless linear motor, which can effectively realize the manufacture of a coil and the rotor by designing a set of complete rotor manufacturing method and provides a structural basis for the good electromagnetic performance of the coreless linear motor.
Therefore, the invention adopts the following technical scheme:
a manufacturing method of a rotor of a coreless linear motor comprises the following steps:
firstly, winding a coil on a core mould through a designed winding core mould through a winding process and solidifying to form a 0-shaped whole;
and step two, encapsulating the wound coil into a complete rotor by designing an encapsulating mold.
Further, in the first step, two through holes with the diameter of 4mm are reserved on each winding core mold.
Preferably, in the first step, the self-adhesive copper wire is wound on the core mould, and the copper wire is heated and cured to form a complete 0-shaped coil.
Preferably, in the second step, the potting mold comprises a fixed mold, a movable mold, a demolding screw, a mold positioning pin, a coil, a locking screw, an upper cover plate, an upper cover positioning pin and an aviation plug.
Preferably, in step two, the process of potting is as follows:
2.1, uniformly coating a release agent in an inner cavity of the encapsulation mold;
2.2, pressing 6 coil positioning pins into the fixed die, and ensuring that the extension length of the middle part of each pin is 0.3 mm;
2.3, pressing 4 mould positioning pins into the fixed mould;
2.4, fixing the 3 coils on the coil positioning pin nails;
2.5, attaching the movable mold to the fixed mold, and positioning through 4 mold positioning pins;
2.6, locking the fixed die and the movable die through 4 locking screws;
2.7, pressing 4 upper cover positioning pins into the fixed die and the movable die respectively;
2.8, fixing the upper cover plate on the encapsulation mold, and positioning through an upper cover positioning pin;
2.9, fixing the aviation plug on the upper cover plate through threads;
2.10, pouring epoxy resin heated to 60 ℃ into the potting mold from the glue pouring port of the upper cover plate, and stopping pouring when the mold is completely filled with the epoxy resin;
2.11, placing the encapsulation mold into a vacuum machine, vacuumizing the vacuum machine to be not less than negative 0.5 atmospheric pressure, and keeping the vacuum machine for 15 minutes;
2.12, completely filling the mould with epoxy resin again;
2.13, setting the heating temperature in an anti-theft heating box of the encapsulation mold to 180 ℃, and keeping for 1 hour;
and 2.14, taking out the encapsulation mold, naturally cooling, firstly taking down the upper cover plate, then screwing out the locking screws, finally sequentially screwing the demoulding screws on the movable mold and the fixed mold, and sequentially separating the movable mold and the rotor from the fixed mold to obtain an independent rotor.
Preferably, clearance fit is realized between the head of the coil positioning pin and the fixed die, and interference fit is realized between the middle part of the coil positioning pin and the fixed die.
Preferably, interference fit is adopted between the rear part of the coil positioning pin and the coil, and the coil is positioned by adopting a positioning step and an inner circle.
Preferably, the root of the knockout screw is a conventional thread and the head of the knockout screw is a smooth cylinder.
Preferably, before potting, the demolding screw is fixed on the movable die, and the head of the demolding screw is flush with the die; after the encapsulation, the encapsulated rotor is separated from the mold by twisting the demolding screw.
Preferably, the mover is an iron-core-free linear motor mover.
Compared with the prior art, the invention has the beneficial effects that:
(1) a self-adhesive copper wire is wound on a core mold, and the copper wire is heated and cured to form a complete O-shaped coil.
(2) Through the cooperation of coil locating pin and cover half length, guaranteed that the active cell single face 0.3 mm's thickness requirement after the embedment is accomplished, provide the structural basis for linear electric motor's good electromagnetic property.
(3) The accurate positioning of the coil before encapsulation is ensured through the position accuracy of the processing hole on the movable die, so that the accurate position of the coil in the movable die after encapsulation can be maintained.
(4) Through the roughness design requirement on the surfaces of the movable mold and the fixed mold, the pouring sealant is ensured not to leak under the condition that the vacuum degree is minus 0.5 atmosphere, the structure is simple, and an O-shaped ring or the sealant is not needed.
(5) The upper cover is designed on the die, so that the flatness of the upper surface of the rotor after encapsulation molding can be ensured, the aviation plug can be directly encapsulated on the rotor, and the reliable outlet wire and the simple connection of the rotor are ensured.
(6) Through a plurality of process tests, a proper encapsulating mold material, a proper release agent, the encapsulating vacuum degree requirement, and the temperature and time for heating and curing are found.
Drawings
Fig. 1 is an exploded view of a potting mold in a method for manufacturing a mover of a coreless linear motor according to the present invention.
Fig. 2 is a completed installation diagram of an encapsulation mold in the method for manufacturing the mover of the coreless linear motor according to the present invention.
Fig. 3 is a schematic structural diagram of a mover provided in the present invention.
Fig. 4 is a schematic diagram of a coil structure provided by the present invention.
Fig. 5 is a schematic diagram of a coil core structure provided by the present invention.
Description of reference numerals: 1. fixing a mold; 2. moving the mold; 3. demolding screws; 4. a mold locating pin; 5. a coil positioning pin; 6. a coil; 7. locking the screw; 8. an upper cover plate; 9. an upper cover positioning pin; 10. an aviation plug; 11. an epoxy resin; 6-1, coil core mould; 6-2, winding and packaging.
Detailed Description
The invention is described in detail below with reference to the drawings and specific embodiments, which are provided for illustration only and are not meant to limit the invention.
The invention discloses a method for manufacturing a rotor of a coreless linear motor, which is mainly divided into two parts, wherein one part is a designed winding core mold, and a coil is wound on the core mold through a winding process and is solidified to form a 0-shaped whole. In order to fix the coil and the potting mold, two through holes with the diameter of 4mm are reserved on each coil core mold. And the other part is that the wound coil is encapsulated into a complete rotor by designing an encapsulating mold.
As shown in fig. 1, the encapsulating mold comprises a fixed mold 1, a movable mold 2, a demolding screw 3, a mold positioning pin 4, a coil positioning pin 5, a coil 6, a locking screw 7, an upper cover plate 8, an upper cover positioning pin 9 and an aviation plug 10. The mold after installation is shown in fig. 2.
The encapsulating process method comprises the following steps:
(1) and uniformly coating a release agent in the inner cavity of the mold.
(2) 6 coil positioning pins 5 shown in FIG. 1 are pressed into the fixed mold 1, and the protruding length of the middle part of the pins is ensured to be 0.3 mm.
(3) 4 mold locating pins 4 are pressed into the stationary mold 1.
(4) 3 coils 6 are fixed to the coil locating pin 5.
(5) The movable die 2 is attached to the fixed die 1 and is positioned by 4 die positioning pins 4.
(6) The fixed die 1 and the movable die 2 are locked by 4 locking screws 7.
(7) 4 upper cover positioning pins 9 are respectively pressed into the fixed die 1 and the movable die 2.
(8) The upper cover plate 8 is fixed to the mold and is positioned by the upper cover positioning pins 9.
(9) The aircraft plug 10 is screwed to the upper cover plate 8.
(10) And (3) pouring the epoxy resin heated to 60 ℃ into the mould from the glue pouring port of the upper cover, and stopping pouring when the mould is completely filled with the resin.
(11) And (3) putting the die into a vacuum machine, ensuring that the vacuum degree is not less than negative 0.5 atmospheric pressure, and keeping for 15 minutes.
(12) The mold is filled again with epoxy.
(13) The mold was placed in a heating oven set at 180 ℃ for 1 hour.
(14) And after the die is taken out and naturally cooled, the upper cover plate 8 is taken down, the die fixing screws are screwed out, finally the demoulding screws 3 on the movable die 2 and the fixed die 1 are screwed in sequence, and the movable die 2 and the movable die are separated from the fixed die 1 in sequence. Thereby obtaining a separate mover.
(15) When the method is used again, the steps are repeated.
The fabricated mover is shown in fig. 3 and includes epoxy resin 11, a coil 6 and an aviation plug 10. The coil 6 is shown in fig. 4 and includes a coil core 6-1 and a coil packet 6-2. The coil core 6-1 is shown in fig. 5.
The key points of the invention are as follows:
1. the design of the whole die realizes the positioning, filling and sealing, demoulding and fixing of the aviation plug of the coil.
2. The cooperation of coil locating pin and mould, the clearance fit of head and cover half make things convenient for the entering of pin, and the intermediate part is interference fit with the cover half, guarantees that the pin can be accurately fixed on the cover half. The rear part of the locating pin is in interference fit with the coil, and the coil is located by adopting the locating step and the inner circle, so that the coil is accurately located and fixed in the rotor.
3. Two release screws are specially designed, the root of the screw is a conventional thread and the head of the screw is a smooth cylinder. The screw thread has two functions, namely, the screw is accurately fixed on the movable die before encapsulation, and the head of the screw is flush with the die; firstly, after the encapsulation, the encapsulated rotor is separated from the mold by twisting the screw.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (8)
1. A manufacturing method of a rotor of a coreless linear motor is characterized in that: the method comprises the following steps:
firstly, winding a coil on a designed winding core mould through a winding process and solidifying to form a 0-shaped whole;
step two, a filling and sealing mold is designed, and the wound coil is filled and sealed into a complete rotor;
in the second step, the encapsulating mold comprises a fixed mold (1), a movable mold (2), a demolding screw (3), a mold positioning pin (4), a coil positioning pin (5), a coil (6), a locking screw (7), an upper cover plate (8), an upper cover positioning pin (9) and an aviation plug (10);
in the second step, the potting process is as follows:
2.1, uniformly coating a release agent in an inner cavity of the encapsulation mold;
2.2, pressing 6 coil positioning pins (5) into the fixed die (1) to ensure that the extension length of the middle part of the pins is 0.3 mm;
2.3, pressing 4 mold positioning pins (4) into the fixed mold (1);
2.4, fixing 3 coils (6) on a coil positioning pin (5);
2.5, attaching the movable mold (2) to the fixed mold (1), and positioning through 4 mold positioning pins (4);
2.6, locking the fixed die (1) and the movable die (2) through 4 locking screws (7);
2.7, pressing 4 upper cover positioning pins (9) into the fixed die (1) and the movable die (2) respectively;
2.8, fixing the upper cover plate (8) on the encapsulation mold, and positioning through an upper cover positioning pin (9);
2.9, fixing the aviation plug (10) on the upper cover plate (8) through threads;
2.10, pouring the epoxy resin heated to 60 ℃ into the potting mold from the glue pouring port of the upper cover plate (8), and stopping pouring when the mold is completely filled with the epoxy resin;
2.11, placing the encapsulation mold into a vacuum machine, vacuumizing the vacuum machine to be not less than negative 0.5 atmospheric pressure, and keeping the vacuum machine for 15 minutes;
2.12, completely filling the mould with epoxy resin again;
2.13, setting the heating temperature in an anti-theft heating box of the encapsulation mold to be 180 ℃ and keeping for 1 hour;
2.14, after the encapsulation mold is taken out and naturally cooled, the upper cover plate (8) is taken down, the locking screws (7) are screwed out, finally the demoulding screws (3) on the movable mold (2) and the fixed mold (1) are screwed in sequence, and the movable mold (2) and the rotor are separated from the fixed mold (1) in sequence to obtain an independent rotor.
2. The method of manufacturing an ironless linear motor mover according to claim 1, wherein: in the first step, two through holes with the diameter of 4mm are reserved on each winding core mold.
3. The method of manufacturing an ironless linear motor mover according to claim 1, wherein: in the first step, the self-adhesive copper wire is wound on the core mold, and the copper wire is heated and cured to form a complete 0-shaped coil.
4. The method for manufacturing a coreless linear motor mover according to claim 1, wherein: the head of the coil positioning pin (5) is in clearance fit with the fixed die (1), and the middle part of the coil positioning pin (5) is in interference fit with the fixed die (1).
5. The method of manufacturing an ironless linear motor mover according to claim 1, wherein: the rear part of the coil positioning pin (5) is in interference fit with the coil (6), and the coil (6) is positioned by adopting a positioning step and an inner circle.
6. The method of manufacturing an ironless linear motor mover according to claim 1, wherein: the root of the demoulding screw (3) is a conventional thread, and the head of the demoulding screw (3) is a smooth cylinder.
7. The method for manufacturing a coreless linear motor mover according to claim 1, wherein: before encapsulation, the demoulding screw (3) is fixed on the movable mould (2), and the head of the demoulding screw (3) is flush with the mould; after the encapsulation, the encapsulated rotor is separated from the mold by twisting the demolding screw (3).
8. A method of manufacturing an ironless linear motor mover according to any of claims 1-7, characterized in that: the rotor is a coreless linear motor rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055113.3A CN112260491B (en) | 2020-09-30 | 2020-09-30 | Method for manufacturing rotor of coreless linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055113.3A CN112260491B (en) | 2020-09-30 | 2020-09-30 | Method for manufacturing rotor of coreless linear motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112260491A CN112260491A (en) | 2021-01-22 |
| CN112260491B true CN112260491B (en) | 2022-08-30 |
Family
ID=74234702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011055113.3A Active CN112260491B (en) | 2020-09-30 | 2020-09-30 | Method for manufacturing rotor of coreless linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112260491B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117543863A (en) * | 2023-11-13 | 2024-02-09 | 秦皇岛达则机电设备有限公司 | Magnetic shaft type frameless linear motor rotor structure and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305768A (en) * | 2014-07-24 | 2016-02-03 | 株式会社安川电机 | Coreless linear motor armature and manufacturing method thereof, and coreless linear motor |
| CN109217615A (en) * | 2017-06-30 | 2019-01-15 | 艾塔尔公司 | The housing module group of coil device and the coil device for motor |
| CN109256917A (en) * | 2018-10-16 | 2019-01-22 | 南京中车浦镇海泰制动设备有限公司 | The manufacturing process of linear eddy-current brake device braking field structure |
| CN109474101A (en) * | 2018-11-28 | 2019-03-15 | 华中科技大学 | Radial flux iron-core-free winding, preparation process and the magneto with the winding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2884638B1 (en) * | 2013-12-11 | 2021-05-26 | Etel S.A. | Cooling body for a linear motor |
-
2020
- 2020-09-30 CN CN202011055113.3A patent/CN112260491B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305768A (en) * | 2014-07-24 | 2016-02-03 | 株式会社安川电机 | Coreless linear motor armature and manufacturing method thereof, and coreless linear motor |
| CN109217615A (en) * | 2017-06-30 | 2019-01-15 | 艾塔尔公司 | The housing module group of coil device and the coil device for motor |
| CN109256917A (en) * | 2018-10-16 | 2019-01-22 | 南京中车浦镇海泰制动设备有限公司 | The manufacturing process of linear eddy-current brake device braking field structure |
| CN109474101A (en) * | 2018-11-28 | 2019-03-15 | 华中科技大学 | Radial flux iron-core-free winding, preparation process and the magneto with the winding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112260491A (en) | 2021-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9824806B2 (en) | Coil, rotating electrical machine, and method of manufacturing coil | |
| CN112260491B (en) | Method for manufacturing rotor of coreless linear motor | |
| CN110948753A (en) | Manufacturing method of encapsulation mold | |
| CN102468725A (en) | Process for encapsulating stator coil in motor | |
| CN111590483A (en) | Embedded part positioning structure and positioning method for large-megawatt wind power engine room cover sheet body | |
| CN115027009B (en) | Waterproof packaging box forming die for automobile flat connector and forming method of waterproof packaging box forming die | |
| CN115498846A (en) | Linear motor rotor, linear motor and winding and insulating tape pasting tool | |
| CN114552918A (en) | High-precision encapsulating mold for three-phase motor stator and using method thereof | |
| CN218958767U (en) | Linear motor rotor, linear motor and winding wire winding and insulating tape pasting tool | |
| CN215580582U (en) | Integrally-formed ultrathin motor stator structure, rotor structure and disc motor | |
| CN113021719A (en) | Superconducting coil dipping die and using method thereof | |
| CN215791189U (en) | Mould for manufacturing stator coil of coreless disk type motor | |
| CN112384347A (en) | Mold for injection molding or casting of rotors | |
| CN220234447U (en) | Stator filling and sealing tool of linear motor | |
| CN215344130U (en) | Iron core structure for motor | |
| CN107453580B (en) | Voice coil motor and manufacturing method thereof | |
| CN205291630U (en) | Large -scale generating set high temperature high pressure shaping stator temperature sensor | |
| CN216959484U (en) | Iron core, winding module and split type stator of stator | |
| CN104753266A (en) | Motor rotor assembling process | |
| CN212381084U (en) | Conical motor stator winding embedment frock | |
| CN220673592U (en) | A embedment frock for disk motor rotor | |
| US20230125969A1 (en) | Electronic apparatus and method of manufacturing electronic device | |
| CN217362680U (en) | Stator of disk motor | |
| CN117937869A (en) | Motor stator glue filling tool and glue filling method thereof | |
| CN218593573U (en) | Upper and lower cover die of control box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |