CN211352010U - Driving and guiding integrated device - Google Patents
Driving and guiding integrated device Download PDFInfo
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- CN211352010U CN211352010U CN202020221155.9U CN202020221155U CN211352010U CN 211352010 U CN211352010 U CN 211352010U CN 202020221155 U CN202020221155 U CN 202020221155U CN 211352010 U CN211352010 U CN 211352010U
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- iron core
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- positioning groove
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Abstract
The utility model provides a driving and guiding integrated device, which comprises a guiding component and a stator component; the stator component comprises an iron core and a coil wound on the iron core; the guide assembly comprises a base, a flexible guide mechanism and a permanent magnet rotor; the base is provided with a first positioning groove and a second positioning groove, the first positioning groove is used for installing the flexible guide mechanism and the permanent magnet rotor, and the stator assembly is fixedly installed on the base through the second positioning groove; the end surface of the iron core is opposite to the permanent magnet with a gap; when the coil is electrified, the permanent magnet moves under the action of electromagnetic force, the force is transmitted to the flexible guide mechanism, the flexible guide mechanism deforms under the action of force, and displacement is output through the output shaft. The device can output high-precision displacement and can be used in the fields of high-precision movement, positioning and the like.
Description
Technical Field
The utility model relates to a mechatronic design field, concretely relates to drive direction integrated device.
Background
The flexible guide mechanism is stressed and deformed, and the displacement is transmitted through deformation, so that the flexible guide mechanism has the advantages of high linearity, no friction and no reverse clearance, and is widely applied to occasions where the displacement precision needs to reach the nanometer level. Under the stroke of hundred microns, a piezoceramic actuator can be used as a driving device of the flexible guide mechanism, but the stroke range is less than one hundred microns due to the limitation of the stacking number of piezoceramics and the size of a device. Although the piezoceramic actuator can adopt an inchworm structure to improve the travel range, the short service life is the biggest limiting factor.
Adopt linear electric motor as drive arrangement can improve flexible guiding mechanism's stroke range, in order to improve device performance index, linear electric motor needs: 1. reducing the mass of the moving part; 2. the thrust density is improved; 3. the thrust within the stroke range is stable; 4. the motor has reasonable heat dissipation.
However, the flexible guide mechanism and the motor are designed independently at present and are connected through a fastener, so that the whole body occupies a large space. In addition, the existing linear motor is mostly a three-phase motor, and the thrust stability degree is difficult to reach the standard. The voice coil motor is a single-phase motor, the thrust of the voice coil motor is stable, but the voice coil motor adopting a moving coil type structure faces the problems of large rotor mass and difficult heat dissipation; the voice coil motor adopting the moving magnet type structure basically has no damping in the system, the system is easy to vibrate, and the positioning precision is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an above-mentioned technical current situation, a drive direction integrated device is provided, and the device integration design guiding mechanism and driving motor can export the high accuracy displacement, can be used to fields such as high accuracy motion, location.
The technical scheme of the utility model is that: a driving and guiding integrated device comprises a guiding component and a stator component;
the stator assembly comprises an iron core and a coil wound on the iron core;
the guide assembly comprises a base, a flexible guide mechanism and a permanent magnet rotor; the base is provided with a first positioning groove for mounting the flexible guide mechanism and the permanent magnet rotor; the base is also provided with a second positioning groove, and the stator assembly is fixedly arranged on the base through the second positioning groove; when the permanent magnet rotor is arranged in the first positioning groove and the stator assembly is fixedly arranged on the base, the end surface of the iron core is opposite to the permanent magnet clearance;
when the coil is electrified, the permanent magnet moves under the action of electromagnetic force, the force is transmitted to the flexible guide mechanism, the flexible guide mechanism deforms under the action of the force to generate displacement, and the displacement is transmitted through the output shaft.
The permanent magnet rotor is made of permanent magnet materials and can provide an excitation magnetic field, and the permanent magnet moves under the action of electromagnetic force when the coil is electrified.
The flexible guide mechanism is stressed and deformed, and transmits displacement through deformation, so that the flexible guide mechanism is unlimited in structure and can have a certain topological structure. Preferably, the flexible guide mechanism is made of a high-strength and high-elasticity material, and is formed into a specific topological shape through machining.
The coil is made of conductive materials. As an implementation mode, the coil is embedded on the iron core after being wound and formed.
The stator assembly is mounted on at least one side of the base. For example, the stator assembly is mounted on the upper side, the lower side, or both the upper and lower sides of the base. The number of stator assemblies mounted on the base is not limited, and one base can mount one, two or more stator assemblies.
Preferably, the end face of the iron core, which is opposite to the permanent magnet, is provided with a conducting strip, when the coil is electrified and the permanent magnet moves under the action of electromagnetic force, the conducting strip and the conducting strip are relatively displaced, and a magnetic field excited by the permanent magnet generates eddy current in the conducting strip, so that the permanent magnet is subjected to damping force in direct proportion to speed, the disturbance resistance of the device can be improved, the stability is improved, and the controllability of the device is improved. As a further preference, an appropriate damping force can be obtained by regulating the thickness of the conductive sheet.
Preferably, the stator assembly is peripherally provided with a shell for reinforcing and protecting the stator assembly, and the shell is fixed on the base through a fixing piece. Preferably, the stator assembly is embedded into the housing and is integrally fixed by potting.
As an implementation manner, the permanent magnet rotor is fixedly connected with the flexible guide mechanism.
As one implementation, as shown in fig. 4, both ends of the core are bent in the same direction to form a substantially U-shaped structure, the core having such a structure is called a U-shaped core, the bent portion is called a tooth portion, a portion connecting the tooth portions is called a yoke portion, and a coil is wound around the tooth portion. The top end of the tooth part is called as a tooth top, and the tooth top is opposite to the gap of the permanent magnet rotor. The tooth top may be formed in various shapes by design. Preferably, the tooth tops transversely extend towards two sides to form a T-shaped structure with the rest of the tooth parts, and the T-shaped structure is beneficial to widening the magnetic field and improving the uniformity of the magnetic field. When the stator component is provided with the tooth part with the T-shaped structure, the second positioning groove structure is matched with the tooth top structure, and the tooth top can be embedded into the second positioning groove, so that the stator component is fixedly installed on the base.
Compared with the prior art, the utility model discloses drive direction integrated device has following beneficial effect:
(1) the utility model adopts the stator component and the guide component, the positioning groove is matched by machining, the assembly precision is high, the assembly is simplified, the integration of the linear driving motor and the flexible guide mechanism is realized, the problems of large volume and precision loss caused by the separation of the flexible guide mechanism and the motor are avoided, and the displacement with high precision can be provided;
(2) the utility model adopts a moving-magnet linear motor structure, the mass of the moving part is mainly concentrated on the permanent magnet, and the mass of the moving part is reduced; the end surface of the iron core is matched with the permanent magnet positioning groove, so that the consistency of the air gap thickness is ensured; the thrust fluctuation is small in the stroke range, the output force and the current are basically in direct proportion, the installation is simple and convenient, the output force is large, and the flexible mechanism can be effectively driven to realize high-speed and high-precision displacement;
(3) preferably, the utility model discloses set up the conducting strip at the relative terminal surface of iron core and permanent magnet, produce the damping when the permanent magnet motion, improved the immunity and the controllability of device;
(4) preferably, the iron core in the utility model comprises a tooth part and a yoke part, the tooth part structure can enhance the air gap magnetic field, improve the mutual electromagnetic action of the coil and the permanent magnet, and improve the thrust density;
(5) the utility model discloses in, flexible guiding mechanism limits the permanent magnet and only can move in the direction of injecing, and the transmission of its displacement utilizes flexible guiding mechanism's deformation, and the electromagnetic force contactless acts on the permanent magnet, realizes no friction, does not have reverse clearance's locate function.
(6) The utility model discloses in, stator module's heat conductivity is good, can the heat that the quick conduction coil produced to the restriction temperature rise.
Therefore, the utility model discloses drive direction integrated device has small, lightweight, the high advantage of thrust density, can export the high accuracy displacement to the installation is simple, and stability is high, can take the damping certainly, can effectively restrain external disturbance, has good application prospect in technical field such as high accuracy motion, location.
Drawings
Fig. 1 is an assembly structure diagram of a drive and guide integrated device in embodiment 1 of the present invention.
Fig. 2 is an exploded schematic view of the drive and guide integrated device in embodiment 1 of the present invention.
Fig. 3 is a top view of the guide assembly of fig. 2.
Fig. 4 is a schematic cross-sectional view of an electromagnetic component composed of a permanent magnet, a coil, and an iron core in embodiment 1 of the present invention.
The reference numerals in fig. 1 to 4 are: stator module 1, guide assembly 2, stator casing 11a, stator casing fixed part 11b, coil 12a, iron core 12b, first arch 12bI, second arch 12bII, conducting strip 12c, base 21, permanent magnet 22, output shaft 23, flexible guiding mechanism 24.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are not intended to limit the invention, but are intended to facilitate the understanding of the invention.
Example 1:
as shown in fig. 1, the drive guide integration apparatus of the present embodiment includes a stator assembly 1 and a guide assembly 2. The stator module is symmetrically distributed on the upper part and the lower part of the horizontal plane of the guide module to form a sandwich structure.
As shown in fig. 2 and 4, the stator assembly includes a coil 12a and a U-shaped iron core 12 b.
As shown in fig. 2 and 3, the guide assembly 2 includes a base 21, a permanent magnet 22, and a flexible guide mechanism 24. The base 21 is provided with a first positioning groove for mounting the permanent magnet 22 and the flexible guide mechanism 24. Still set up second constant head tank 21a on the base, stator module 1 passes through second constant head tank 21a fixed mounting on the base.
As shown in fig. 4, in the present embodiment, the electromagnetic components of the drive guide integration device include a coil 12a, an iron core 12b, a conductive sheet 12c, and a permanent magnet 22. The coil 12a is wound around the teeth of the core 12 b. The iron core 12b is made of a material with good magnetic permeability, and tooth tops of the iron core are transversely expanded towards two sides, namely, the iron core is provided with a first protrusion 12bI and a second protrusion 12bII which form a T-shaped structure with the rest parts of the tooth parts, and the structure is favorable for widening a magnetic field and improving the uniformity of the magnetic field. The conductive sheet 12c is attached to the tip end surface. As shown in fig. 2, the second positioning groove 21a has a structure matching with the tooth tip structure, and the tooth tip can be inserted into the second positioning groove 21a, so that the stator assembly is fixedly mounted on the base.
As shown in fig. 2, a stator housing 11a is provided around the stator assembly for reinforcing and protecting the stator assembly. The stator case 11a has a bottom-opened container structure. Stator housing 11a may be potted integrally with the stator assembly and secured to base 21 by stator housing securing members 11 b.
The permanent magnet 22 is a hard magnetic material that provides magnetic field excitation.
The coil 12a is electrified to generate a magnetic field, the magnetic field passes through the permanent magnet 22 to generate electromagnetic interaction, the permanent magnet 22 moves after receiving electromagnetic force, the flexible guide mechanism 24 is driven to generate plastic deformation, and displacement is transmitted to the outside through the output shaft 23. During the movement, the flexible guide mechanism 24 only generates plastic deformation, and the electromagnetic force and the displacement driven by the electromagnetic force are in linear relation, so that the device can provide high-precision displacement and can be used for high-precision movement, positioning and the like. In addition, the permanent magnet 22 generates relative displacement with the conductor sheet 12c when moving, the magnetic field excited by the permanent magnet 22 generates eddy current in the conductor sheet 12c, and the permanent magnet 22 receives damping force proportional to speed.
The above-mentioned embodiment is to the technical solution of the present invention has been described in detail, it should be understood that the above is only the specific embodiment of the present invention, not used for limiting the present invention, any modification, supplement or similar mode replacement etc. that the principle scope of the present invention is in should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a drive direction integrated device which characterized by: the guide assembly and the stator assembly are included;
the stator assembly comprises an iron core and a coil wound on the iron core;
the guide assembly comprises a base, a flexible guide mechanism and a permanent magnet rotor; the base is provided with a first positioning groove for mounting the flexible guide mechanism and the permanent magnet rotor; the base is also provided with a second positioning groove, and the stator assembly is fixedly arranged on the base through the second positioning groove; when the permanent magnet rotor is arranged in the first positioning groove and the stator assembly is fixedly arranged on the base, the end surface of the iron core is opposite to the permanent magnet, and a gap is formed between the end surface of the iron core and the permanent magnet;
when the coil is electrified, the permanent magnet moves under the action of electromagnetic force, the force is transmitted to the flexible guide mechanism, the flexible guide mechanism deforms under the action of the force to generate displacement, and the displacement is transmitted through an output shaft of the flexible guide mechanism.
2. The drive-guide integration apparatus as set forth in claim 1, wherein: and a conducting strip is arranged on the end face of the iron core, which is opposite to the permanent magnet.
3. The drive-guide integration apparatus as set forth in claim 1, wherein: the flexible guide mechanism is made of high-strength and high-elasticity materials, and is formed into a topological shape through machining.
4. The drive-guide integration apparatus as set forth in claim 1, wherein: the stator assembly is mounted on at least one side of the base.
5. The drive-guide integration apparatus as set forth in claim 1, wherein: the periphery of the stator assembly is provided with a shell, and the shell is fixed on the base through a fixing piece.
6. The drive-guide integration apparatus as set forth in claim 5, wherein: the stator module is embedded into the shell and is fixedly connected into a whole through glue pouring.
7. The drive-guide integration apparatus as set forth in claim 1, wherein: the permanent magnet rotor is fixedly connected with the flexible guide mechanism.
8. The drive-guide integration apparatus as set forth in claim 1, wherein: the iron core is a U-shaped iron core, the coil winds around the tooth part, the tooth top surface of the coil is opposite to the permanent magnet rotor, and a gap exists between the tooth top surface and the permanent magnet rotor.
9. The drive-guide integration apparatus as set forth in claim 8, wherein: the tooth top transversely expands towards two sides to form a T-shaped structure with the rest part of the tooth part.
10. The drive-guide integration apparatus as set forth in claim 9, wherein: the second positioning groove structure is matched with the tooth top structure, and the tooth top can be embedded into the second positioning groove, so that the stator assembly is fixedly installed on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020221155.9U CN211352010U (en) | 2020-02-27 | 2020-02-27 | Driving and guiding integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020221155.9U CN211352010U (en) | 2020-02-27 | 2020-02-27 | Driving and guiding integrated device |
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| CN211352010U true CN211352010U (en) | 2020-08-25 |
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| CN202020221155.9U Active CN211352010U (en) | 2020-02-27 | 2020-02-27 | Driving and guiding integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117081346A (en) * | 2023-10-12 | 2023-11-17 | 无锡星微科技有限公司杭州分公司 | Multi-stroke motion structure and motion control platform with same |
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2020
- 2020-02-27 CN CN202020221155.9U patent/CN211352010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117081346A (en) * | 2023-10-12 | 2023-11-17 | 无锡星微科技有限公司杭州分公司 | Multi-stroke motion structure and motion control platform with same |
| CN117081346B (en) * | 2023-10-12 | 2024-01-19 | 无锡星微科技有限公司杭州分公司 | Multi-stroke motion structure and motion control platform with same |
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