CN203522426U - Large stroke micro-displacement driver - Google Patents
Large stroke micro-displacement driver Download PDFInfo
- Publication number
- CN203522426U CN203522426U CN201320577001.3U CN201320577001U CN203522426U CN 203522426 U CN203522426 U CN 203522426U CN 201320577001 U CN201320577001 U CN 201320577001U CN 203522426 U CN203522426 U CN 203522426U
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- screw nut
- feed screw
- bearing
- displacement
- nut pair
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Abstract
The utility model relates to a large stroke micro-displacement driver comprising a stepping motor, a harmonic wave decelerator, a screw rod nut and a push rod connected in sequence; the screw rod nut is arranged on a precision guide rail; an L-shaped isolation plate is provided between the screw rod nut and the precision guide rail; the push rod of displacement output is connected with the isolation plate; the micro-displacement driver only has a single control unit controlling the stepping motor; the output displacement is subdivided in two stages by the motor controller and the harmonic wave decelerator, thereby reaching a nanometer magnitude. Furthermore, a mechanic structure ensures the driver to have the displacement stroke of dozens of millimeters.
Description
Technical field
The utility model relates to a kind of mechanical nanometer scale micro-displacement driver.
Background technology
At present, known micro-displacement driver mainly contains the micro-displacement driver of high position precision and the micro-displacement driver of large stroke.
The micro-displacement driver of high position precision is to utilize the flexible or magnetostriction of piezoelectricity to realize the displacement of nanometer scale, for example piezoelectric ceramics block mostly.Although this driver positioning precision is very high, its stroke is all not more than 1mm, and thrust is limited.The research of large stroke micro-displacement driver is a lot, in precision optical machinery and instrument application very wide, comparative maturity, wherein, the mechanical type micro-displacement driver being formed by stepping motor and precision lead screw nut, extensive use in high-power laser device.The resolution of this driver is micron dimension, within stroke 10mm, and compact conformation, thrust is larger, controls easily low cost of manufacture.
Two kinds of above-mentioned drivers can only be single realize that high position precision requires or the requirement of large stroke.For the driver that can realize millimeter stroke and nanometer scale displacement drive, present demand is also more and more.Also there is in recent years a lot of development work, the driver mainly being formed by piezoelectric ceramic and ball screw assembly.With piezoelectric ceramic, realize the micrometric displacement of nanometer scale, realize the displacement of large stroke with ball screw assembly,, both control respectively.Activation configuration is compact, have larger thrust, but manufacturing cost is high.In addition, because it exists complicated working mechanism etc., the characteristics such as that piezoelectric ceramic has is non-linear, sluggish, creep, its strain and external electric field intensity curve are not the linear relationship under perfect condition, and after power-off, piezoelectric ceramic can recover shape, cannot maintain the offset variable of setting, so there is certain difficulty in this kind of micro-displacement driver in application.
Utility model content
In order to meet the requirement of high position precision and large stroke simultaneously, overcome the deficiency of piezoelectric actuator, the utility model provides a kind of large stroke micro-displacement driver, and this driver can not only be realized the large stroke requirement of tens millimeters, can also reach the positioning accuracy request of nanometer scale.In addition, also there is compact conformation, the advantage such as cost is low, stability is high, single control.
The utility model solves the technical scheme that its technical problem adopts:
A large stroke micro-displacement driver, comprises stepping motor, end cap, axle sleeve, harmonic speed reducer, base, bearing, bearing cap, feed screw nut pair, push rod, slideway top board, gib block, linear slide, alignment pin and L-type adjustable plate, described stepping motor is fixedly connected with base by end cap, and the output of stepping motor is connected with the input of harmonic speed reducer by axle sleeve; Described harmonic speed reducer is put into the groove of base, and is fixedly connected with by screw, and output and the feed screw nut pair of harmonic speed reducer are connected; What the screw mandrel of described feed screw nut pair adopted is the supporting way that an end dissociative is fixed in one end, and bearing cap has limited the axial motion of bearing, bearing by with the coordinating of base and feed screw nut pair, limited axial motion and the radial motion of feed screw nut pair; Screw pair regulates backing plate to be connected by alignment pin and L-type, and L-type regulates backing plate to be fixedly connected with slideway top board, and linear slide has guaranteed the direction of motion and system centre line parallel by gib block; Described L-type regulates backing plate to regulate height by the thickness of increase and decrease transverse slat face, to guarantee the axiality of screw pair and other part; Push rod is connected with L-type adjustable plate.
Compared with prior art, the beneficial effects of the utility model are,
Driver can, when realizing large stroke motion, can also have the positioning precision of nanometer scale.In addition, driver also has the features such as single control, stable height, compact conformation, cost is low.The large stroke requirement of tens millimeters can not only be realized, the positioning accuracy request of nanometer scale can also be reached.
Accompanying drawing explanation
Fig. 1 is that the master of the large stroke micro-displacement driver of the utility model looks longitudinal section.
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, to preferred embodiment of the present utility model, details are as follows:
Referring to Fig. 1 and Fig. 2, a kind of large stroke micro-displacement driver, comprises stepping motor 1, end cap 2, axle sleeve 3, harmonic speed reducer 4, base 5, bearing 6, bearing cap 7, feed screw nut pair 8, push rod 9, slideway top board 10, gib block 11, linear slide 12, alignment pin 13 and L-type adjustable plate 14, described stepping motor 1 is fixedly connected with base 5 by end cap 2, and the output of stepping motor 1 is connected with the input of harmonic speed reducer 4 by axle sleeve 3; Described harmonic speed reducer 4 is put into the groove of base 5, and is fixedly connected with by screw, and the output of harmonic speed reducer 4 and feed screw nut pair 8 are connected; What the screw mandrel of described feed screw nut pair 8 adopted is the supporting way that an end dissociative is fixed in one end, bearing cap 7 has limited the axial motion of bearing 6, bearing 6 by with the coordinating of base 5 and feed screw nut pair 8, limited axial motion and the radial motion of feed screw nut pair 8; Screw pair 8 regulates backing plate 14 to be connected by alignment pin 13 and L-type, and L-type regulates backing plate 14 to be fixedly connected with slideway top board 10, and linear slide 12 has guaranteed the direction of motion and system centre line parallel by gib block 11; Described L-type regulates backing plate 14 to regulate height by the thickness of increase and decrease transverse slat face, to guarantee the axiality of screw pair 8 and other part; Push rod 9 is connected with L-type adjustable plate 14.
Claims (1)
1. a large stroke micro-displacement driver, comprise stepping motor (1), end cap (2), axle sleeve (3), harmonic speed reducer (4), base (5), bearing (6), bearing cap (7), feed screw nut pair (8), push rod (9), slideway top board (10), gib block (11), linear slide (12), alignment pin (13) and L-type adjustable plate (14), it is characterized in that, described stepping motor (1) is fixedly connected with base (5) by end cap (2), the output of stepping motor (1) is connected with the input of harmonic speed reducer (4) by axle sleeve (3), described harmonic speed reducer (4) is put into the groove of base (5), and is fixedly connected with by screw, and the output of harmonic speed reducer (4) and feed screw nut pair (8) are connected, what the screw mandrel of described feed screw nut pair (8) adopted is the supporting way that an end dissociative is fixed in one end, bearing cap (7) has limited the axial motion of bearing (6), bearing (6) by with the coordinating of base (5) and feed screw nut pair (8), limited axial motion and the radial motion of feed screw nut pair (8), screw pair (8) regulates backing plate (14) to be connected by alignment pin (13) and L-type, and L-type regulates backing plate (14) to be fixedly connected with slideway top board (10), and linear slide (12) has guaranteed the direction of motion and system centre line parallel by gib block (11), described L-type regulates backing plate (14) to regulate height by the thickness of increase and decrease transverse slat face, to guarantee the axiality of screw pair (8) and other part, push rod (9) is connected with L-type adjustable plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577001.3U CN203522426U (en) | 2013-09-18 | 2013-09-18 | Large stroke micro-displacement driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577001.3U CN203522426U (en) | 2013-09-18 | 2013-09-18 | Large stroke micro-displacement driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522426U true CN203522426U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320577001.3U Expired - Fee Related CN203522426U (en) | 2013-09-18 | 2013-09-18 | Large stroke micro-displacement driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071589A (en) * | 2015-08-14 | 2015-11-18 | 苏州玖典智能科技有限公司 | Rapid and accurate linear movement device |
| CN109831058A (en) * | 2019-01-24 | 2019-05-31 | 中国科学院长春光学精密机械与物理研究所 | A kind of displacement actuator |
-
2013
- 2013-09-18 CN CN201320577001.3U patent/CN203522426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071589A (en) * | 2015-08-14 | 2015-11-18 | 苏州玖典智能科技有限公司 | Rapid and accurate linear movement device |
| CN109831058A (en) * | 2019-01-24 | 2019-05-31 | 中国科学院长春光学精密机械与物理研究所 | A kind of displacement actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |