CN1361365A - One-dimensional micro-displacement unit - Google Patents
One-dimensional micro-displacement unit Download PDFInfo
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- CN1361365A CN1361365A CN 02112569 CN02112569A CN1361365A CN 1361365 A CN1361365 A CN 1361365A CN 02112569 CN02112569 CN 02112569 CN 02112569 A CN02112569 A CN 02112569A CN 1361365 A CN1361365 A CN 1361365A
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- China
- Prior art keywords
- push rod
- displacement
- push
- dimensional micro
- screw thread
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Abstract
The present invention is one-dimensional micro-displacement unit for raster line phase shifter. It includes a displacement platform, and the displacement platform consists of a fixed platform and a moving platform connected elastically together. The fixed platform has push rod inside a push rod hole, one end of the push rod is set on a end cam connected to a stepped motor, and the other end is set on the moving platform. The technological scheme of the present invention based on push rod, end cam and stepped motor has the advantages of simple and practical displacement control and low cost.
Description
One, technical field
The present invention relates to a kind of micrometric displacement mobile platform, refer in particular to a kind of one-dimensional micro-displacement unit of grid line phase-shifter.
Two, background technique
At present, micro-displacement apparatus adopts piezoelectric constant to produce micrometric displacement mostly, when producing the displacement of hundreds of micron, needs need usually to adopt piezoelectric constant heap and high voltage to implement, owing to use high voltage, therefore, complexity is set is difficult to accurate control, and can only be used for below 100 microns, and can not be used for excursion in the occasion of hundreds of nanometer to hundreds of micron micrometric displacement.
Three, technological scheme
Technical problem: the invention provides a kind of micrometric displacement the control simple and easy to do and with low cost one-dimensional micro-displacement unit of hundreds of nanometer that be suitable for producing to the hundreds of micron.
Technological scheme: a kind of one-dimensional micro-displacement unit that is used for the grid line phase-shifter, comprise displacement platform, this displacement platform is made up of stationary platen and mobile substation, stationary platen is connected with mobile substation elasticity, be provided with push-rod hole on stationary platen, establish push rod in push-rod hole, an end of push rod is located on the end cam, the other end of push rod is located on the mobile substation, and end cam is connected in stepper motor.
Beneficial effect: 1. because the present invention has adopted end cam, make that bigger angular displacement can be converted into small straight-line displacement, promote mobile substation generation micrometric displacement by push rod, pulse controlled characteristic and end cam that stepper motor had, the technical measures of push rod make the present invention to control mobile substation easily and move, and can satisfy the required precision of such micro-displacement apparatus and the advantage of tool good linearity, in addition, the measure of this generation displacement of the present invention need not to make piezoelectric constant produce the technical measures of required displacement with high voltage in the prior art, so the present invention also has advantage with low cost.2. the present invention is chosen to be the screw thread push boat with end cam, and the screw thread push boat can be a short screw, after push rod is located at its screw thread side, can make push rod rotatablely moving and axial translation takes place with the screw thread push boat, because the manufacturing of screw rod is simple, with low cost, so these technical measures of the present invention have the advantage that cost more becomes cheap.3. because being the contact position of push rod and mobile substation, the relative position relation of push rod of the present invention and mobile substation is positioned at the center symmetrical position of mobile substation, and mobile substation is an axially symmetric structure, so the present invention can guarantee mobile substation translation only takes place, and do not rotate, thereby to guaranteeing that precision is favourable.
Four, description of drawings
Fig. 1 is a structure sectional view of the present invention.
Fig. 2 is the structural representation of screw thread push boat of the present invention.
Fig. 3 is another example structure schematic representation of displacement platform of the present invention.
Five, embodiment
A kind of one-dimensional micro-displacement unit that is used for the grid line phase-shifter comprises displacement platform, and this displacement platform is made up of stationary platen 1 and mobile substation 2, and stationary platen 1 is connected with mobile substation 2 elasticity.On stationary platen 1, be provided with push-rod hole, in push-rod hole, establish push rod 3, above-mentioned push-rod hole plays leading role to push rod, one end of push rod 3 is located on the end cam 4, the other end of push rod 3 is located on the mobile substation 2, and end cam 4 is connected in stepper motor 5, and end cam 4 is the screw thread push boat, the screw thread push boat is the less square threaded form of pitch, and the pitch of screw thread push boat is not more than 1 millimeter.Push rod 3 is located on the screw thread side 7 of screw thread push boat, and the contact position of above-mentioned push rod 3 and mobile substation 2 is positioned at the center symmetrical position of mobile substation 2.
Claims (5)
1, a kind of one-dimensional micro-displacement unit that is used for the grid line phase-shifter, comprise displacement platform, this displacement platform is made up of stationary platen (1) and mobile substation (2), stationary platen (1) is connected with mobile substation (2) elasticity, it is characterized in that being provided with push-rod hole on stationary platen (1), establish push rod (3) in push-rod hole, an end of push rod (3) is located on the end cam (4), the other end of push rod (3) is located on the mobile substation (2), and end cam (4) is connected in stepper motor (5).
2, one-dimensional micro-displacement unit according to claim 1 is characterized in that end cam (4) is the screw thread push boat, and push rod (3) is located on the screw thread side (7) of screw thread push boat.
3, one-dimensional micro-displacement unit according to claim 2 is characterized in that the screw thread push boat is the less square threaded form of pitch.
4, one-dimensional micro-displacement unit according to claim 3 is characterized in that the pitch of screw thread push boat is not more than 1 millimeter.
5, one-dimensional micro-displacement unit according to claim 2 is characterized in that the push rod (3) and the contact position of mobile substation (2) are positioned at the center symmetrical position of mobile substation (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112569 CN1361365A (en) | 2002-01-21 | 2002-01-21 | One-dimensional micro-displacement unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112569 CN1361365A (en) | 2002-01-21 | 2002-01-21 | One-dimensional micro-displacement unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1361365A true CN1361365A (en) | 2002-07-31 |
Family
ID=4742105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02112569 Pending CN1361365A (en) | 2002-01-21 | 2002-01-21 | One-dimensional micro-displacement unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1361365A (en) |
-
2002
- 2002-01-21 CN CN 02112569 patent/CN1361365A/en active Pending
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| SE01 | Entry into force of request for substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |