CN105119518A - Magnetostrictive spring plate type micro gripper driven by Galfenol slices - Google Patents
Magnetostrictive spring plate type micro gripper driven by Galfenol slices Download PDFInfo
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- CN105119518A CN105119518A CN201510556613.8A CN201510556613A CN105119518A CN 105119518 A CN105119518 A CN 105119518A CN 201510556613 A CN201510556613 A CN 201510556613A CN 105119518 A CN105119518 A CN 105119518A
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- caliper
- shell fragment
- galfenol
- spring
- thin slice
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Abstract
The invention discloses a magnetostrictive spring plate type micro gripper driven by Galfenol slices. The magnetostrictive spring plate type micro gripper comprises a gripper body; one end of the gripper body is enclosed and the other end is open; and a coil winds around the outside of the gripper body. Two flat spring plates opposite to each other are arranged inside the gripper body; one end of each spring plate is connected with the enclosed end surface of the gripper body and the other end of the spring plate extends out of the opening end of the gripper body. Two support plates perpendicular to the spring plates are arranged at the opening end of the gripper body; and one end of each support plate is connected with the outer side of one spring plate and the other end of the support plate is connected with the inner wall of the gripper body. Galfenol slices are pasted to the outer sides, arranged inside the gripper body, of the spring plates, wherein the maximum magnetostrictive directions of the Galfenol slices are consistent with the length directions of the spring plates. According to the invention, with deformation of the Galfenol slices in the magnetic field, the spring plates are driven to be bent and deformed to realize clamping. The clamping range is large, the deformation precision is high, the driving voltage is low, and the reliability is high.
Description
Technical field
The present invention relates to micro-drive technology field, be specifically related to the magnetostriction spring-piece type micro-clamp that a kind of Galfenol thin slice drives.
Background technology
Micro-clamp is actuator crucial in micro OS, is mechanical energy by other forms of Conversion of Energy, produces the holding action and chucking power that need.As the typical microactuator of one, micro-clamp has presented application prospect widely in fields such as micro-workpiece processing, assembling, biomedical engineering and optics.
Piezoceramic material is a kind of material being widely used in microactrator field, utilize the inverse piezoelectric effect of piezoelectric ceramic, accurate Position Control can be realized easily, make fine motion clamp, a kind of micro-clamp driven based on piezoelectric bimorph that such as Cai Jianhua proposes in its paper " novel micro-clamp technical research ".Although Piezoelectric Driving micro-clamp distortion resolution is high, corresponding fast, wide to temperature-insensitive, operating frequency, its driving voltage is high simultaneously, deflection is little, difficult compatible with semiconductor technology.
Galfenol material is a kind of novel magnetostrictive material, and having the advantages such as the quick and reliability of large sstrain, high accuracy, High power output, response is high, and have excellent mechanical performance, is the ideal material of structure precision driver.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of magnetostriction spring-piece type micro-clamp that deformation accuracy is high, driving voltage is low being drive source with Galfenol thin slice.
The technical solution adopted in the present invention is: the magnetostriction spring-piece type micro-clamp that a kind of Galfenol thin slice drives, and comprises caliper, and caliper one end is closed, other end opening, the outside winding around of caliper; Be provided with the shell fragment that two panels is straight in caliper, two panels shell fragment is oppositely arranged, and one end of shell fragment is connected with the Closed End of caliper, and the other end of shell fragment stretches out the openend of caliper; The openend of caliper is provided with two panels the sheet vertical with shell fragment, and an one end for sheet is connected with the lateral surface of shell fragment, and an other end for sheet is connected with the inwall of caliper; The lateral surface that shell fragment is positioned at caliper inside is pasted with Galfenol thin slice, and the maximum mangneto telescopic direction of Galfenol thin slice is consistent with the length direction of shell fragment.
By such scheme, described caliper, shell fragment and a sheet are integrated, and adopt non-magnetic elastic plate integral cutting to form.
By such scheme, described Galfenol thin slice is long rectangle, and thickness is 0.3 ~ 0.5mm.
By such scheme, the wall thickness of described caliper is more than 10mm.
By such scheme, the thickness of described shell fragment is 0.8 ~ 1mm, and the ratio of the length that the length that shell fragment is positioned at caliper is stretched out with it outside caliper is greater than 1:1.
By such scheme, the thickness of described sheet is 0.8 ~ 1mm, and the length of a sheet is 3 ~ 5mm.
Operation principle of the present invention is: Galfenol thin slice along shell fragment elongated lengthwise, drives shell fragment flexural deformation in the coil magnetic field of energising, and the flexibility of shell fragment increases with the elongation increase of Galfenol thin slice; Shell fragment is bent outwardly, and under the supporting role of a sheet, the free end of shell fragment inwardly rotates around a sheet, realizes clamping, as shown in Figure 2.Galfenol thin slice is after coil blackout, magnetic field dissipate, and return to the former length before energising, shell fragment also returns to the straightened condition before energising.The present invention controls clamping range by the size adjusting coil current.
The invention has the beneficial effects as follows: utilize the distortion of Galfenol thin slice in magnetic field, drive shell fragment flexural deformation to realize clamping; Caliper adopts integral structure, and the free end of shell fragment rotates around a sheet, enhances the rigidity of caliper, increases the chucking power of caliper; Pass into the size of current of coil by adjustment, control clamping range; Deformation accuracy of the present invention is high, and driving voltage is low, and good reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention's specific embodiment.
Fig. 2 is the clamp position schematic diagram of the present embodiment.
Wherein: 1, caliper; 2, coil; 3, Galfenol thin slice; 4, shell fragment; 5, sheet is propped up.
Embodiment
In order to understand the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
The magnetostriction spring-piece type micro-clamp that a kind of Galfenol thin slice as shown in Figure 1 drives, comprise caliper 1, caliper 1 one end is closed, other end opening, the outside winding around 2 of caliper 1; Be provided with the straight shell fragment of two panels 4 in caliper 1, two panels shell fragment 4 is oppositely arranged, and one end of shell fragment 4 is connected with the Closed End of caliper 1, and the other end of shell fragment 4 stretches out the openend of caliper 1; The openend of caliper 1 is provided with two panels the sheet 5 vertical with shell fragment 4, and one end of a sheet 5 is connected with the lateral surface of shell fragment 4, and the other end of a sheet 5 is connected with the inwall of caliper 1; The maximum mangneto telescopic direction lateral surface that shell fragment 4 is positioned at caliper 1 inside being pasted with Galfenol thin slice 3, Galfenol thin slice 3 is consistent with the length direction of shell fragment 4.
Preferably, caliper 1, shell fragment 4 and a sheet 5 are integrated, and adopt non-magnetic elastic plate integral cutting to form.
Preferably, Galfenol thin slice 3 is in long rectangle, and thickness is 0.3 ~ 0.5mm.
Preferably, the wall thickness of caliper 1 is more than 10mm.
Preferably, the thickness of shell fragment 4 is 0.8 ~ 1mm, and the ratio of length that the length that shell fragment 4 is positioned at caliper 1 is stretched out with it outside caliper 1 is greater than 1:1.
Preferably, the thickness of a sheet 5 is 0.8 ~ 1mm, and the length of a sheet 5 is 3 ~ 5mm.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a magnetostriction spring-piece type micro-clamp for Galfenol thin slice driving, is characterized in that, comprise caliper, and caliper one end is closed, other end opening, the outside winding around of caliper; Be provided with the shell fragment that two panels is straight in caliper, two panels shell fragment is oppositely arranged, and one end of shell fragment is connected with the Closed End of caliper, and the other end of shell fragment stretches out the openend of caliper; The openend of caliper is provided with the sheet vertical with shell fragment, and an one end for sheet is connected with the lateral surface of shell fragment, and an other end for sheet is connected with the inwall of caliper; The lateral surface that shell fragment is positioned at caliper inside is pasted with Galfenol thin slice, and the maximum mangneto telescopic direction of Galfenol thin slice is consistent with the length direction of shell fragment.
2. the magnetostriction spring-piece type micro-clamp of a kind of Galfenol thin slice driving as claimed in claim 1, it is characterized in that, described caliper, shell fragment and a sheet are integrated, and adopt non-magnetic elastic plate integral cutting to form.
3. the magnetostriction spring-piece type micro-clamp of a kind of Galfenol thin slice driving as claimed in claim 1, it is characterized in that, described Galfenol thin slice is long rectangle, and thickness is 0.3 ~ 0.5mm.
4. the magnetostriction spring-piece type micro-clamp of a kind of Galfenol thin slice driving as claimed in claim 2, it is characterized in that, the wall thickness of described caliper is more than 10mm.
5. the magnetostriction spring-piece type micro-clamp of a kind of Galfenol thin slice driving as claimed in claim 2, it is characterized in that, the thickness of described shell fragment is 0.8 ~ 1mm, and the ratio of the length that the length that shell fragment is positioned at caliper is stretched out with it outside caliper is greater than 1:1.
6. the magnetostriction spring-piece type micro-clamp of a kind of Galfenol thin slice driving as claimed in claim 2, it is characterized in that, the thickness of described sheet is 0.8 ~ 1mm, and the length of a sheet is 3 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556613.8A CN105119518B (en) | 2015-09-02 | 2015-09-02 | The magnetostriction spring-piece type micro-clamp that a kind of Galfenol thin slices drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556613.8A CN105119518B (en) | 2015-09-02 | 2015-09-02 | The magnetostriction spring-piece type micro-clamp that a kind of Galfenol thin slices drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105119518A true CN105119518A (en) | 2015-12-02 |
| CN105119518B CN105119518B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510556613.8A Active CN105119518B (en) | 2015-09-02 | 2015-09-02 | The magnetostriction spring-piece type micro-clamp that a kind of Galfenol thin slices drive |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06260524A (en) * | 1993-03-09 | 1994-09-16 | Shinkawa Ltd | Wire clamper |
| US5931452A (en) * | 1996-09-13 | 1999-08-03 | Tosok Corporation | Wire clamper for bonding apparatus |
| CN101570310A (en) * | 2009-06-09 | 2009-11-04 | 南昌工程学院 | Magnetostriction type jiggle clamp |
| CN202934477U (en) * | 2012-12-03 | 2013-05-15 | 南昌工程学院 | I-shaped structure fine motion clamp based on giant magnetostrictive material (GMM) |
| CN103145087A (en) * | 2013-03-14 | 2013-06-12 | 南昌工程学院 | Magnetostrictive composite cantilever beam driven by Terfenol-D sheets |
| CN204928619U (en) * | 2015-09-02 | 2015-12-30 | 南昌工程学院 | Galfenol thin slice driven magnetic induced shrinkage or elongation shell fragment clamp that declines |
-
2015
- 2015-09-02 CN CN201510556613.8A patent/CN105119518B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06260524A (en) * | 1993-03-09 | 1994-09-16 | Shinkawa Ltd | Wire clamper |
| US5931452A (en) * | 1996-09-13 | 1999-08-03 | Tosok Corporation | Wire clamper for bonding apparatus |
| CN101570310A (en) * | 2009-06-09 | 2009-11-04 | 南昌工程学院 | Magnetostriction type jiggle clamp |
| CN202934477U (en) * | 2012-12-03 | 2013-05-15 | 南昌工程学院 | I-shaped structure fine motion clamp based on giant magnetostrictive material (GMM) |
| CN103145087A (en) * | 2013-03-14 | 2013-06-12 | 南昌工程学院 | Magnetostrictive composite cantilever beam driven by Terfenol-D sheets |
| CN204928619U (en) * | 2015-09-02 | 2015-12-30 | 南昌工程学院 | Galfenol thin slice driven magnetic induced shrinkage or elongation shell fragment clamp that declines |
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| Publication number | Publication date |
|---|---|
| CN105119518B (en) | 2017-06-06 |
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