CN107561689B - KDP crystal surface shape control device based on voice coil motor drive - Google Patents
KDP crystal surface shape control device based on voice coil motor drive Download PDFInfo
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- CN107561689B CN107561689B CN201710994589.5A CN201710994589A CN107561689B CN 107561689 B CN107561689 B CN 107561689B CN 201710994589 A CN201710994589 A CN 201710994589A CN 107561689 B CN107561689 B CN 107561689B
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Abstract
The invention discloses a KDP crystal surface shape control device based on voice coil motor driving, and relates to a KDP crystal surface shape control device based on voice coil motor driving. The invention aims to solve the problem that the influence of the crystal surface shape quality on the laser frequency conversion efficiency and the beam quality cannot be intuitively researched by the conventional device. The device consists of a crystal frame module, a crystal driving module, a motor positioning module and an outer frame module; the crystal frame module consists of a pressurizing plate, a bearing plate, a bottom side fixing piece, a top side fixing piece, a left restraint plate, a right restraint plate, a loading block, an arc-shaped elastic sheet and an elastic base plate; the crystal driving module consists of 16 drivers, and a single driver consists of a flat head piece, a flexible hinge and a voice coil motor; the motor positioning module is composed of a motor positioning top cover, a motor positioning front plate, a motor positioning rear plate and a motor positioning base. The invention is used for researching the frequency conversion efficiency and the beam quality when the laser passes through the KDP crystal.
Description
Technical Field
The invention relates to a KDP crystal surface shape control device based on voice coil motor driving.
Background
KDP crystal as frequency doubling crystal is widely used in the heavy technologies of controlled thermonuclear reaction, nuclear explosion simulation and the like of high-power laser system. In order to obtain higher peak power and better beam quality, the diameter-thickness ratio of a KDP crystal in an ICF device is gradually increased, and the elastic modulus is smaller, so that the surface shape precision of the KDP crystal is very easily influenced by external factors such as self gravity, ambient temperature, the flatness of a frame supporting surface, the clamping force of a crystal assembly and the like in the use process, and the frequency conversion efficiency and the beam quality of laser are directly influenced.
Therefore, extremely high requirements are put on surface shape control of the KDP crystal, and deformation of the KDP crystal under various complex environments needs to be simulated through a crystal surface shape control device urgently so as to grasp laser frequency conversion efficiency and beam quality of the KDP crystal and provide theoretical support for practical application.
Disclosure of Invention
The invention provides a KDP crystal surface shape control device based on voice coil motor drive, aiming at solving the problem that the existing device can not intuitively research the influence of the crystal surface shape quality on the laser frequency conversion efficiency and the beam quality.
The KDP crystal surface shape control device based on the voice coil motor drive is composed of a crystal frame module, a crystal drive module, a motor positioning module and an outer frame module; the crystal frame module consists of a pressurizing plate, a bearing plate, a bottom side fixing piece, a top side fixing piece, a restraining plate, a loading block, an arc-shaped elastic sheet and an elastic base plate; grooves matched with the elastic base plates are formed in the outer frames of the pressure plate and the pressure bearing plate respectively, and the elastic base plates are arranged in the grooves in the outer frames of the pressure plate and the pressure bearing plate respectively; the KDP crystal is vertically arranged between the pressure plate and the bearing plate; a plurality of notches are uniformly arranged on the outer frames of the pressure plate and the pressure bearing plate, and the notches on the outer frame of the pressure plate correspond to the notches on the outer frame of the pressure bearing plate; the top of the KDP crystal is provided with an arc-shaped elastic sheet, the upper parts of the KDP crystal, the pressurizing plate and the pressure bearing plate are provided with a top side fixing piece, and the bottom end of the top side fixing piece is provided with a transverse bulge for compressing the arc-shaped elastic sheet; the lower parts of the KDP crystal, the pressurizing plate and the bearing plate are provided with bottom side fixing pieces; loading blocks are arranged in the notches of the outer frames on the two sides of the pressure bearing plate, the outer sides of the outer frames on the two sides of the pressure bearing plate are respectively provided with a restraint plate, the restraint plate is provided with a plurality of pin holes and a plurality of screw holes, positioning pins are arranged in the pin holes and used for fixing the restraint plate, and loading screws are arranged in the screw holes and used for controlling the loading blocks to slide in the notches of the outer frames on the two sides of the pressure bearing plate; the crystal driving module consists of 16 drivers, and a single driver consists of a flat head piece, a flexible hinge and a voice coil motor; the flat head part is connected with the voice coil motor through a flexible hinge, and a middle shaft of the voice coil motor is connected with the flexible hinge through threads; the motor positioning module consists of a motor positioning top cover, a motor positioning front plate, a motor positioning rear plate and a motor positioning base; 25 light-transmitting apertures are distributed on the motor positioning front plate and the motor positioning rear plate according to a 5 multiplied by 5 array, and the 25 light-transmitting apertures on the motor positioning front plate and the 25 light-transmitting apertures on the motor positioning rear plate are symmetrical and coaxially arranged; 16 driver front assembly positions are arranged on the motor positioning front plate according to a 4 x 4 array, and the driver front assembly positions are arranged at the central point of a square surrounded by every four adjacent light transmission apertures; 16 rear driver assembling positions are arranged on the motor positioning rear plate according to a 4 x 4 array, and the front driver assembling positions are arranged at the central points of a square formed by enclosing every four adjacent light transmission apertures; the flat head piece of the single driver penetrates through a front assembling position of the driver on the motor positioning front plate and is fixed through a bolt; the bottom end of the voice coil motor of the single driver is fixed at the rear assembly position of the driver through a bolt; the upper end surfaces of the motor positioning front plate and the motor positioning rear plate are provided with motor positioning top covers, and the lower end surfaces of the motor positioning front plate and the motor positioning rear plate are provided with motor positioning bases; the outer frame module consists of an outer frame top cover, an outer frame left plate, an outer frame right plate and an outer frame base; the motor positioning base is fixed on the outer frame base, the outer frame top cover is fixed above the motor positioning top cover, the outer frame left plate is fixed on the left side of the motor positioning module, and the outer frame right plate is fixed on the right side of the motor positioning module; the crystal frame module is provided with a motor, and the outer side of the positioning front plate is in contact with the flat head piece of the single driver.
Has the advantages that:
the invention can accurately simulate the surface shape change of the KDP crystal in various complex environments, and the frequency conversion efficiency and the beam quality of laser passing through the crystal are researched by controlling the deformation of the KDP crystal through the crystal driving module. The invention adopts the voice coil motor to realize the surface shape control of the KDP crystal, has the advantages of simple structure, short delay time, quick response, large stroke, high control precision and high energy conversion efficiency, and meets the requirements on a KDP crystal driving device.
Drawings
Fig. 1 is a schematic structural diagram of a KDP crystal surface shape control device based on voice coil motor drive;
fig. 2 is an exploded structural diagram of a KDP crystal surface shape control device based on voice coil motor drive;
FIG. 3 is an exploded view of a crystal frame module;
FIG. 4 is a schematic structural diagram of a motor positioning module;
FIG. 5 is an enlarged schematic view of a side of a pressure bearing plate;
FIG. 6 is a schematic diagram of a single actuator;
FIG. 7 is a front view of the motor positioning back plate;
fig. 8 is a rear view of the motor positioning back plate.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 6, and a KDP crystal surface shape control device based on voice coil motor driving in the present embodiment is composed of a crystal frame module 1, a crystal driving module 2, a motor positioning module 3, and an outer frame module 4; the crystal frame module 1 consists of a pressurizing plate 1-1, a bearing plate 1-2, a bottom side fixing piece 1-3, a top side fixing piece 1-4, a restraining plate 1-5, a loading block 1-7, an arc-shaped elastic sheet 1-8 and an elastic backing plate 1-9; grooves matched with the elastic backing plates 1-9 are formed in the outer frames of the pressure plate 1-1 and the pressure bearing plate 1-2, and the elastic backing plates 1-9 are respectively arranged in the grooves in the outer frames of the pressure plate 1-1 and the pressure bearing plate 1-2; the KDP crystal 6 is vertically arranged between the pressure plate 1-1 and the pressure bearing plate 1-2; a plurality of notches are uniformly arranged on the outer frames of the pressure plate 1-1 and the pressure bearing plate 1-2, and the notches on the outer frame of the pressure plate 1-1 correspond to the notches on the outer frame of the pressure bearing plate 1-2; the top of the KDP crystal 6 is provided with an arc-shaped elastic sheet 1-8, the upper parts of the KDP crystal 6, the pressurizing plate 1-1 and the pressure bearing plate 1-2 are provided with a top side fixing piece 1-4, and the bottom end of the top side fixing piece 1-4 is provided with a transverse bulge for pressing the arc-shaped elastic sheet 1-8; the KDP crystal 6, the pressurizing plate 1-1 and the pressure bearing plate 1-2 are provided with bottom side fixing pieces 1-3 at the lower parts; loading blocks 1-7 are arranged in the notches on the outer frames on the two sides of the pressure bearing plate 1-2, the outer sides of the outer frames on the two sides of the pressure bearing plate 1-2 are respectively provided with a restraint plate 1-5, the restraint plate 1-5 is provided with a plurality of pin holes and a plurality of screw holes, positioning pins 1-6 are arranged in the pin holes and used for fixing the restraint plate 1-5, and loading screws 1-10 are arranged in the screw holes and used for controlling the loading blocks 1-7 to slide in the notches on the outer frames on the two sides of the pressure bearing plate 1-2; the crystal driving module 2 consists of 16 drivers, and a single driver consists of a flat head piece 2-1, a flexible hinge 2-2 and a voice coil motor 2-3; the flat head part 2-1 is connected with the voice coil motor 2-3 through a flexible hinge 2-2, and a middle shaft of the voice coil motor 2-3 is connected with the flexible hinge 2-2 through threads; the motor positioning module 3 consists of a motor positioning top cover 3-1, a motor positioning front plate 3-2, a motor positioning rear plate 3-3 and a motor positioning base 3-4; 25 light-transmitting apertures are distributed on the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 according to a 5 multiplied by 5 array, and the 25 light-transmitting apertures on the motor positioning front plate 3-2 and the 25 light-transmitting apertures on the motor positioning rear plate 3-3 are symmetrical and coaxially arranged; 16 driver front assembly positions are arranged on the motor positioning front plate 3-2 according to a 4 x 4 array, and the driver front assembly positions are arranged at the central points of a square formed by enclosing of every four adjacent clear calibers; 16 driver rear assembling positions are arranged on the motor positioning rear plate 3-3 according to a 4 x 4 array, and the driver front assembling positions are arranged at the central points of a square formed by enclosing of every four adjacent light transmission apertures; the flat head piece 2-1 of the single driver penetrates through a front assembling position of the driver on the motor positioning front plate 3-2 and is fixed through a bolt; the bottom end of the voice coil motor 2-3 of the single driver is fixed at the rear assembly position of the driver through a bolt; the upper end surfaces of the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 are provided with a motor positioning top cover 3-1, and the lower end surfaces of the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 are provided with a motor positioning base 3-4; the outer frame module 4 consists of an outer frame top cover 4-1, an outer frame left plate 4-2, an outer frame right plate 4-3 and an outer frame base 4-4; the motor positioning base 3-4 is fixed on the outer frame base 4-4, the outer frame top cover 4-1 is fixed above the motor positioning top cover 3-1, the outer frame left plate 4-2 is fixed on the left side of the motor positioning module 3, and the outer frame right plate 4-3 is fixed on the right side of the motor positioning module 3; the crystal frame module 1 is provided with a motor positioning front plate 3-2, the outer side of which is in contact with a flat head piece 2-1 of a single driver.
The maximum driving force of the KDP crystal plane shape control apparatus based on voice coil motor driving according to the present embodiment is 20N.
The crystal frame module in the embodiment is used for clamping and supporting the KDP crystal in a low stress manner; the crystal driving module is used for driving the crystal to deform so as to enable the crystal to conform to a crystal face shape value required by an experiment; the motor positioning module is used for realizing high-precision positioning of the voice coil motor, so that the positioning error of the voice coil motor is within a controllable range; the outer frame module is used for connecting the crystal frame module and the motor positioning module, and the position precision is ensured through positioning points on the outer frame module.
The implementation mode adopts 16 drivers to ensure that the crystals generate envelope-line-like deformation at the respective positions, and the deformation of the crystals under the gravity cannot be reached or exceeded, so that the required surface shape precision requirement is met, and the cost is also considered.
In the embodiment, the grooves on the pressure plate and the outer frame of the pressure bearing plate are respectively provided with an elastic base plate for restraining five degrees of freedom thereof and ensuring the elastic base plate to be in flexible contact with the crystal.
In the embodiment, the loading block is arranged in the notches on the outer frames on the two sides of the bearing plate, the loading block is driven to slide in the notches through the loading screws, and the two positioning pins realize the positioning of the loading block, so that the KDP crystal is restrained from moving in the left and right directions.
In the embodiment, the KDP crystal is vertically placed, the bottom side fixing piece is a bearing plate, the weight of the whole KDP crystal is borne, the contact surface of the KDP crystal and the crystal is finely processed, and the uniform stress of the crystal is ensured.
The KDP crystal top of the embodiment adopts the arc-shaped elastic sheet as elastic constraint, and adopts the top side fixing piece to compress the elastic sheet, so that low-stress fixation of the crystal is ensured.
In the embodiment, the motor positioning module ensures the position precision through the motor positioning top cover and the base; the motor positioning back plate is used as a main stress plate and bears the gravity of the voice coil motor and the reaction force of the driving force of the voice coil motor; the motor positioning front plate is used as an auxiliary support, and part of reaction force can be removed.
The second embodiment is as follows: the present embodiment differs from the first embodiment in that: the flexible hinge 2-2 is a straight circular multi-axis flexible hinge. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the diameter of the light-transmitting caliber is 20 mm. The others are the same as in the first or second embodiment.
The fourth concrete implementation mode: the present embodiment differs from one of the first to third embodiments in that: the cross-sectional diameter of the flat head piece 2-1 is 6 mm. By the arrangement, the reasonable contact area between the flat head piece and the KDP crystal can be ensured, so that the situation that the pressure bearing capacity of the crystal is exceeded due to the fact that the contact surface is too small under the required reference surface shape or the error of misalignment between the actual surface shape and the reference surface shape exceeds an allowable value due to the fact that the contact surface is too large is avoided. Full contact of the bluff piece with the KDP crystal is ensured by a flexible hinge with two degrees of freedom for X-axis rotation and Y-axis rotation. A pressure sensor integrated in the voice coil motor senses whether the flat head piece is in contact with the KDP crystal, the flat head piece and the KDP crystal are regarded as a control zero point when the flat head piece and the KDP crystal are in contact, meanwhile, the pressure of the KDP crystal is monitored to be not beyond a specified range, and the crystal is prevented from being damaged. The rest is the same as one of the first to third embodiments.
The fifth concrete implementation mode: as shown in fig. 7 and 8, the present embodiment differs from one of the first to fourth embodiments in that: the front panel of the motor positioning rear plate 3-3 is provided with a cylindrical pit for positioning the bottom end of the voice coil motor 2-3, and the rear panel of the motor positioning rear plate 3-3 is cut off with materials to form a triangular reinforcing rib plate. The rest is the same as one of the first to fourth embodiments.
The embodiment reduces the weight to the minimum on the premise of ensuring the deformation precision. The motor positioning front plate and the motor positioning rear plate are arranged on the front side, rib plate structures are not arranged, and the functions of auxiliary positioning and voice coil motor supporting are achieved.
The sixth specific implementation mode: the present embodiment differs from one of the first to fifth embodiments in that: and strip bosses for fixing the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 are respectively processed on the motor positioning top cover 3-1 and the motor positioning base 3-4. The rest is the same as one of the first to fifth embodiments.
This embodiment can accurate positioning motor location front bezel and motor location back plate position through setting up the boss to reduce the area of processing of part and the area of contact between the part, make faying face contact good.
The beneficial effects of the present invention are demonstrated by the following examples:
the first embodiment is as follows: a KDP crystal surface shape control device based on voice coil motor driving is composed of a crystal frame module 1, a crystal driving module 2, a motor positioning module 3 and an outer frame module 4; the crystal frame module 1 consists of a pressurizing plate 1-1, a bearing plate 1-2, a bottom side fixing piece 1-3, a top side fixing piece 1-4, a restraining plate 1-5, a loading block 1-7, an arc-shaped elastic sheet 1-8 and an elastic backing plate 1-9; grooves matched with the elastic backing plates 1-9 are formed in the outer frames of the pressure plate 1-1 and the pressure bearing plate 1-2, and the elastic backing plates 1-9 are respectively arranged in the grooves in the outer frames of the pressure plate 1-1 and the pressure bearing plate 1-2; the KDP crystal 6 is vertically arranged between the pressure plate 1-1 and the pressure bearing plate 1-2; a plurality of notches are uniformly arranged on the outer frames of the pressure plate 1-1 and the pressure bearing plate 1-2, and the notches on the outer frame of the pressure plate 1-1 correspond to the notches on the outer frame of the pressure bearing plate 1-2; the top of the KDP crystal 6 is provided with an arc-shaped elastic sheet 1-8, the upper parts of the KDP crystal 6, the pressurizing plate 1-1 and the pressure bearing plate 1-2 are provided with a top side fixing piece 1-4, and the bottom end of the top side fixing piece 1-4 is provided with a transverse bulge for pressing the arc-shaped elastic sheet 1-8; the KDP crystal 6, the pressurizing plate 1-1 and the pressure bearing plate 1-2 are provided with bottom side fixing pieces 1-3 at the lower parts; loading blocks 1-7 are arranged in the notches on the outer frames on the two sides of the pressure bearing plate 1-2, the outer sides of the outer frames on the two sides of the pressure bearing plate 1-2 are respectively provided with a restraint plate 1-5, the restraint plate 1-5 is provided with a plurality of pin holes and a plurality of screw holes, positioning pins 1-6 are arranged in the pin holes and used for fixing the restraint plate 1-5, and loading screws 1-10 are arranged in the screw holes and used for controlling the loading blocks 1-7 to slide in the notches on the outer frames on the two sides of the pressure bearing plate 1-2; the crystal driving module 2 consists of 16 drivers, and a single driver consists of a flat head piece 2-1, a flexible hinge 2-2 and a voice coil motor 2-3; the flat head part 2-1 is connected with the voice coil motor 2-3 through a flexible hinge 2-2, and a middle shaft of the voice coil motor 2-3 is connected with the flexible hinge 2-2 through threads; the motor positioning module 3 consists of a motor positioning top cover 3-1, a motor positioning front plate 3-2, a motor positioning rear plate 3-3 and a motor positioning base 3-4; 25 light-transmitting apertures are distributed on the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 according to a 5 multiplied by 5 array, and the 25 light-transmitting apertures on the motor positioning front plate 3-2 and the 25 light-transmitting apertures on the motor positioning rear plate 3-3 are symmetrical and coaxially arranged; 16 driver front assembly positions are arranged on the motor positioning front plate 3-2 according to a 4 x 4 array, and the driver front assembly positions are arranged at the central points of a square formed by enclosing of every four adjacent clear calibers; 16 driver rear assembling positions are arranged on the motor positioning rear plate 3-3 according to a 4 x 4 array, and the driver front assembling positions are arranged at the central points of a square formed by enclosing of every four adjacent light transmission apertures; the flat head piece 2-1 of the single driver penetrates through a front assembling position of the driver on the motor positioning front plate 3-2 and is fixed through a bolt; the bottom end of the voice coil motor 2-3 of the single driver is fixed at the rear assembly position of the driver through a bolt; the upper end surfaces of the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 are provided with a motor positioning top cover 3-1, and the lower end surfaces of the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 are provided with a motor positioning base 3-4; the outer frame module 4 consists of an outer frame top cover 4-1, an outer frame left plate 4-2, an outer frame right plate 4-3 and an outer frame base 4-4; the motor positioning base 3-4 is fixed on the outer frame base 4-4, the outer frame top cover 4-1 is fixed above the motor positioning top cover 3-1, the outer frame left plate 4-2 is fixed on the left side of the motor positioning module 3, and the outer frame right plate 4-3 is fixed on the right side of the motor positioning module 3; the crystal frame module 1 is provided with a motor positioning front plate 3-2, the outer side of which is in contact with a flat head piece 2-1 of a single driver.
The cross-sectional diameter of the flat head piece 2-1 is 6 mm.
The front panel of the motor positioning rear plate 3-3 is provided with a cylindrical pit for positioning the bottom end of the voice coil motor 2-3, and the rear panel of the motor positioning rear plate 3-3 is cut off with materials to form a triangular reinforcing rib plate. And strip bosses for fixing the motor positioning front plate 3-2 and the motor positioning rear plate 3-3 are respectively processed on the motor positioning top cover 3-1 and the motor positioning base 3-4.
The embodiment can accurately simulate the surface shape change of the KDP crystal in various complex environments, and the frequency conversion efficiency and the beam quality of laser passing through the crystal are researched by controlling the deformation of the KDP crystal through the crystal driving module. The invention adopts the voice coil motor to realize the surface shape control of the KDP crystal, has the advantages of simple structure, short delay time, quick response, large stroke, high control precision and high energy conversion efficiency, and meets the requirements on a KDP crystal driving device.
Claims (6)
1. A KDP crystal surface shape control device based on voice coil motor driving is characterized in that the KDP crystal surface shape control device based on voice coil motor driving is composed of a crystal frame module (1), a crystal driving module (2), a motor positioning module (3) and an outer frame module (4); the crystal frame module (1) consists of a pressurizing plate (1-1), a pressure bearing plate (1-2), a bottom side fixing piece (1-3), a top side fixing piece (1-4), a restraining plate (1-5), a loading block (1-7), an arc-shaped elastic sheet (1-8) and an elastic base plate (1-9); grooves matched with the elastic backing plates (1-9) are formed in the outer frames of the pressure plate (1-1) and the pressure bearing plate (1-2), and the elastic backing plates (1-9) are respectively arranged in the grooves in the outer frames of the pressure plate (1-1) and the pressure bearing plate (1-2); the KDP crystal (6) is vertically arranged between the pressure plate (1-1) and the pressure bearing plate (1-2); a plurality of notches are uniformly arranged on the outer frames of the pressure plate (1-1) and the pressure bearing plate (1-2), and the notches on the outer frame of the pressure plate (1-1) correspond to the notches on the outer frame of the pressure bearing plate (1-2); the top of the KDP crystal (6) is provided with an arc-shaped elastic sheet (1-8), the upper parts of the KDP crystal (6), the pressurizing plate (1-1) and the pressure bearing plate (1-2) are provided with top side fixing pieces (1-4), and the bottom end of each top side fixing piece (1-4) is provided with a transverse bulge for pressing the arc-shaped elastic sheet (1-8); the lower parts of the KDP crystal (6), the pressurizing plate (1-1) and the pressure bearing plate (1-2) are provided with bottom side fixing pieces (1-3); loading blocks (1-7) are arranged in the notches on the outer frames on the two sides of the pressure bearing plate (1-2), the outer sides of the outer frames on the two sides of the pressure bearing plate (1-2) are respectively provided with a restraint plate (1-5), the restraint plate (1-5) is provided with a plurality of pin holes and a plurality of screw holes, positioning pins (1-6) are arranged in the pin holes and used for fixing the restraint plate (1-5), and loading screws (1-10) are arranged in the screw holes and used for controlling the loading blocks (1-7) to slide in the notches on the outer frames on the two sides of the pressure bearing plate (1-2); the crystal driving module (2) consists of 16 drivers, and a single driver consists of a flat head piece (2-1), a flexible hinge (2-2) and a voice coil motor (2-3); the 16 drivers are arranged between the motor positioning front plate (3-2) and the motor positioning rear plate (3-3) according to a 4 x 4 array; the flat head piece (2-1) is connected with the voice coil motor (2-3) through a flexible hinge (2-2), and a middle shaft of the voice coil motor (2-3) is connected with the flexible hinge (2-2) through threads; the motor positioning module (3) consists of a motor positioning top cover (3-1), a motor positioning front plate (3-2), a motor positioning rear plate (3-3) and a motor positioning base (3-4); 25 light-transmitting apertures are distributed on the motor positioning front plate (3-2) and the motor positioning rear plate (3-3) according to a 5 multiplied by 5 array, and the 25 light-transmitting apertures on the motor positioning front plate (3-2) and the 25 light-transmitting apertures on the motor positioning rear plate (3-3) are symmetrical and coaxially arranged; 16 driver front assembly positions are arranged on the motor positioning front plate (3-2) according to a 4 x 4 array, and the driver front assembly positions are arranged at the central points of a square surrounded by every four adjacent light transmission apertures; 16 driver rear assembling positions are arranged on the motor positioning rear plate (3-3) according to a 4 x 4 array, and the driver front assembling positions are arranged at the central points of a square surrounded by every four adjacent light transmission apertures; the flat head piece (2-1) of the single driver penetrates through the front assembly part of the driver on the motor positioning front plate (3-2) and is fixed through a bolt; the bottom end of the voice coil motor (2-3) of the single driver is fixed at the rear assembly position of the driver through a bolt; the upper end surfaces of the motor positioning front plate (3-2) and the motor positioning rear plate (3-3) are provided with motor positioning top covers (3-1), and the lower end surfaces of the motor positioning front plate (3-2) and the motor positioning rear plate (3-3) are provided with motor positioning bases (3-4); the outer frame module (4) consists of an outer frame top cover (4-1), an outer frame left plate (4-2), an outer frame right plate (4-3) and an outer frame base (4-4); the motor positioning base (3-4) is fixed on the outer frame base (4-4), the outer frame top cover (4-1) is fixed above the motor positioning top cover (3-1), the outer frame left plate (4-2) is fixed on the left side of the motor positioning module (3), and the outer frame right plate (4-3) is fixed on the right side of the motor positioning module (3); the crystal frame module (1) is provided with a motor positioning front plate (3-2), and the outer side of the motor positioning front plate is in contact with a flat head piece (2-1) of a single driver.
2. A KDP crystal profile control device based on voice coil motor drive as claimed in claim 1, characterized by that the flexible hinge (2-2) is a right circular multi-axis flexible hinge.
3. The KDP crystal face shape control device based on the voice coil motor drive as claimed in claim 1, wherein the diameter of the clear aperture is 20 mm.
4. A KDP crystal profile control device based on voice coil motor drive as claimed in claim 1, characterized in that the cross section diameter of the flat head piece (2-1) is 6 mm.
5. The KDP crystal surface shape control device based on the voice coil motor drive according to claim 1, wherein the front panel of the motor positioning back plate (3-3) is provided with a cylindrical pit for positioning the bottom end of the voice coil motor (2-3), and the material of the back panel of the motor positioning back plate (3-3) is cut off to form a triangular reinforcing rib plate.
6. The KDP crystal plane shape control device based on the voice coil motor drive of claim 1, wherein the motor positioning top cover (3-1) and the motor positioning base (3-4) are both provided with a long boss for fixing the motor positioning front plate (3-2) and the motor positioning rear plate (3-3).
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| CN201710994589.5A CN107561689B (en) | 2017-10-23 | 2017-10-23 | KDP crystal surface shape control device based on voice coil motor drive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2919614Y (en) * | 2006-03-31 | 2007-07-04 | 中国科学院长春光学精密机械与物理研究所 | Automatic advance and retreat device of wavelength converting element in optical cavity resonator |
| CN102591013A (en) * | 2012-03-23 | 2012-07-18 | 中国工程物理研究院激光聚变研究中心 | Method for improving optical element additional surface shape caused by force of gravity, and clamping system thereof |
| CN106229798A (en) * | 2016-08-12 | 2016-12-14 | 中国工程物理研究院激光聚变研究中心 | There is frequency-doubling crystal clamping device and the installation method of low additional deformation |
| CN107179591A (en) * | 2017-05-16 | 2017-09-19 | 清华大学 | A kind of precise clamping device of laser frequency doubling crystal and active optics control method |
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| CN107561689A (en) | 2018-01-09 |
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