CN113174629A - Preparation device and method of yttrium aluminum garnet laser crystal - Google Patents
Preparation device and method of yttrium aluminum garnet laser crystal Download PDFInfo
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- CN113174629A CN113174629A CN202110294148.0A CN202110294148A CN113174629A CN 113174629 A CN113174629 A CN 113174629A CN 202110294148 A CN202110294148 A CN 202110294148A CN 113174629 A CN113174629 A CN 113174629A
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- 239000013078 crystal Substances 0.000 title claims abstract description 66
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 13
- 238000002360 preparation method Methods 0.000 title description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000005485 electric heating Methods 0.000 claims description 39
- 239000002994 raw material Substances 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000012943 hotmelt Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 3
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/20—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B28/00—Production of homogeneous polycrystalline material with defined structure
- C30B28/04—Production of homogeneous polycrystalline material with defined structure from liquids
- C30B28/10—Production of homogeneous polycrystalline material with defined structure from liquids by pulling from a melt
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/16—Oxides
- C30B29/22—Complex oxides
- C30B29/28—Complex oxides with formula A3Me5O12 wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co or Al, e.g. garnets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention discloses a device for preparing an yttrium aluminum garnet laser crystal, which relates to the technical field of laser crystals and comprises a main body mechanism, wherein the main body mechanism comprises a first box body, a hollow column is vertically arranged in the middle of the top of the first box body, the bottom of the first box body penetrates through the top of the first box body, a first servo motor is fixed at the top of the hollow column, a first threaded rod is welded at the output end of the first servo motor, a lifting rod is connected to the inner cavity of the hollow column in a sliding mode, one end of the lifting rod extends to the inner cavity of the first box body, the first threaded rod is arranged in the inner cavity of the lifting rod, the external threaded section of the first threaded rod is in threaded connection with the inner wall of the lifting rod, a lifting pendant is arranged at the bottom of the lifting rod, a seed crystal rod is arranged at the bottom of the lifting pendant, and. Under the effect of drive mechanism, can make the interior temperature of first box even, promote yttrium aluminum garnet laser crystal's heating effect.
Description
Technical Field
The invention relates to the technical field of laser crystals, in particular to a preparation device and a preparation method of an yttrium aluminum garnet laser crystal.
Background
Yttrium aluminum garnet crystals are man-made compounds, without natural minerals. Homogeneous body, high hardness. Before 1960, colorless and transparent yttrium aluminum garnet was used as a substitute for diamond.
The yttrium aluminum garnet crystal needs to use a crystal growth furnace in the process of culture and growth, and the temperature in some crystal growth furnaces is unevenly heated in the using process. Therefore, a device and a method for preparing the yttrium aluminum garnet laser crystal are provided.
Disclosure of Invention
The invention aims to provide a device and a method for preparing an yttrium aluminum garnet laser crystal, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an apparatus for preparing yttrium aluminum garnet laser crystal, comprising:
the main body mechanism comprises a first box body, wherein a hollow column is vertically installed in the middle of the top of the first box body, the bottom of the first box body penetrates through the top of the first box body, a first servo motor is fixed to the top of the hollow column, a first threaded rod is welded to the output end of the first servo motor and installed in the cavity of the hollow column, a lifting rod is connected to the inner cavity of the hollow column in a sliding mode, one end of the lifting rod extends to the inner cavity of the first box body, the first threaded rod is installed in the inner cavity of the lifting rod, the external threaded section of the first threaded rod is in threaded connection with the inner wall of the lifting rod, a lifting pendant is installed at the bottom of the lifting rod, a seed crystal rod is installed at the bottom of the lifting pendant, and electric heating plates are installed on two side walls of the inner cavity of the first box body;
wherein, drive mechanism is installed on both sides of the inner cavity of the first box body, the drive mechanism is symmetrically arranged, the drive mechanism comprises two second servo motors, the two second servo motors are respectively connected with the two sides of the top of the first box body through screws, the two sides of the inner cavity of the first box body are respectively and vertically provided with a second threaded rod, one end part of the second threaded rod penetrates through the top of the first box body and is welded with the output end of the second servo motor, the outer wall of the second threaded rod is in threaded connection with a first sliding block, the two sides of the inner cavity of the first box body far away from the electric heating plate are respectively and vertically provided with a sliding rod, the outer wall of the sliding rod is in sliding connection with a second sliding block, the second sliding block is welded with a mounting plate towards one side of the lifting pendant, one side of the mounting plate towards the lifting pendant is fixed with a fan, a connecting rod is welded between the first sliding block and the second sliding block;
wherein, hot melt mechanism is installed to the inner chamber bottom of first box, hot melt mechanism includes the recess seat, the crucible has been placed in the recess seat, the slide bar is kept away from second servo motor's one end tip and is all welded mutually with the top both sides of recess seat, first mounting groove and second mounting groove have been seted up respectively to the inner wall both sides of recess seat, install first electric heating net and second electric heating net in first mounting groove and the second mounting groove respectively, first electric heating net and second electric heating net laminate mutually with the both sides wall of crucible respectively.
Preferably, a PLC control box is installed on one side of the outer wall of the first box body, and the electric control output end of the first servo motor is electrically connected with the electric control input end of the PLC control box through a wire.
Through adopting above-mentioned technical scheme, the PLC control box is used for controlling first servo motor's positive and negative rotation.
Preferably, the lower part of slide bar is fixed with the stopper, pressure sensor is installed at the top of stopper, pressure sensor's signal output part and the signal input part signal connection of PLC control box, the automatically controlled output of PLC control box passes through wire and second servo motor's automatically controlled input electric connection.
Through adopting above-mentioned technical scheme, when the second slider descends, touch the pressure sensor of stopper top installation, pressure sensor feeds back the signal to PLC control box, and PLC control box sends the instruction, makes second servo motor carry out antiport to make the fan rebound once more.
Preferably, first screws penetrate through the upper portions of the two side walls of the lifting hanging piece, the lifting hanging piece and the lifting rod are installed through the first screws, and the lifting hanging piece is detachably connected.
By adopting the technical scheme, the hanging piece is convenient to assemble and disassemble under the setting effect.
Preferably, the second screw rods penetrate through the lower portions of the two side walls of the lifting hanging piece, the lifting hanging piece and the seed rod are installed through the second screw rods, and the seed rod is detachably connected.
By adopting the technical scheme, the seed rod can be conveniently assembled and disassembled under the action of the arrangement.
Preferably, the input ends of the first electric heating net and the second electric heating net are respectively electrically connected with the electric control output end of the PLC control box through wires.
By adopting the technical scheme, the heating time and the heating temperature of the first electric heating net and the second electric heating net are set by operating the PLC control box, and the yttrium aluminum garnet laser crystal raw material placed in the crucible is heated and melted.
Preferably, damper is installed to the bottom of first box, damper includes the second box, the inner chamber top sliding connection of second box has the diaphragm, the top of diaphragm and the bottom welding of first box, a plurality of springs are installed to the inner chamber of second box, and are a plurality of the spring is the matrix and distributes, a plurality of in the intracavity of second box the top of spring all is connected with the bottom of diaphragm.
Through adopting above-mentioned technical scheme, under damper's effect, can cushion the vibration shock attenuation that first box during operation produced.
Preferably, the middle parts of two side walls of the inner cavity of the second box body are respectively provided with a first guide groove and a second guide groove, the first guide groove and the second guide groove are respectively and slidably connected with a second guide block and a second guide block, and the middle parts of two side walls of the transverse plate are respectively welded with the second guide block and the second guide block.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, the guidance quality when being convenient for improve the diaphragm up-and-down motion.
Preferably, the front side of first box articulates there is the chamber door, the outer wall of hollow post is fixed with solid fixed ring, solid fixed ring's bottom both sides have all been welded branch, branch is kept away from solid fixed ring's tip and all is welded mutually with the top both sides of first box.
Through adopting above-mentioned technical scheme, through opening the chamber door, be convenient for get and put yttrium aluminum garnet laser crystal raw materials, through solid fixed ring and branch, can fix and support the hollow column.
The invention also provides a method for preparing the yttrium aluminum garnet laser crystal, which comprises the following steps:
s1, placing the raw materials, opening a box door, placing the yttrium aluminum garnet laser crystal raw materials in a crucible, placing the crucible in a groove seat, and closing the box door;
s2, heating the raw material, setting the heating time and the heating temperature of the electric heating plate, the first electric heating net and the second electric heating net by operating the PLC control box, heating and melting the yttrium aluminum garnet laser crystal raw material placed in the crucible, and simultaneously increasing the temperature in the first box body cavity;
s3, generating raw materials, namely operating a PLC control box to enable a first servo motor to rotate in the forward direction, enabling the first servo motor to drive a first threaded rod to rotate in the forward direction, enabling a lifting rod to rotate in the forward direction through the forward rotation of the first threaded rod, enabling the lifting rod to move downwards, enabling a lifting pendant to drive a seed rod to move downwards until the seed rod moves into a crucible, enabling crystals generated after the crucible is heated to be attached to the seed rod, taking the seed rod as a core and slowly growing upwards, setting the first servo motor to rotate in the uniform speed and reverse direction through the PLC control box at the moment, and enabling the seed rod to lift the generated crystals upwards under the reverse rotation action of the first servo motor to enable the generated crystals to be generated into columnar crystals;
s4, controlling the temperature in the furnace to make the temperature in the furnace uniformly distributed, setting the forward and reverse rotation and rotation frequency of a second servo motor through a PLC control box, driving the forward rotation of a second threaded rod when the second servo motor rotates forward, driving the forward rotation of a first slide block through the forward rotation of the second threaded rod, making the first slide block move downwards, driving a second slide block to move downwards through a connecting rod when the first slide block moves downwards, driving a mounting plate to move downwards through a slide rod by the second slide block, making the mounting plate drive a fan to move downwards, touching a pressure sensor arranged at the top of a limiting block when the second slide block descends, feeding back signals to the PLC control box by the pressure sensor, sending instructions by the PLC control box to make the second servo motor rotate reversely, making the fan move upwards again, and making the blown wind energy uniformly distribute the heat in the first box body in the process of the up-and down movement of the fan, the external conditions for crystal formation are raised.
Compared with the prior art, the invention has the beneficial effects that:
in the scheme, the raw material of the yttrium aluminum garnet laser crystal can be heated and melted through the hot melting mechanism;
in the scheme, the main body mechanism can lift the generated yttrium aluminum garnet laser crystal upwards to enable the yttrium aluminum garnet laser crystal to generate a columnar crystal;
in the scheme, under the action of the transmission mechanism, the temperature in the first box body can be uniform, and the heating effect of the yttrium aluminum garnet laser crystal is improved;
in this scheme, through damper, can carry out the shock attenuation buffering to the main part mechanism.
Drawings
FIG. 1 is a schematic structural view of an apparatus for producing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 2 is a schematic perspective view showing the structure of an apparatus for preparing an YAG laser crystal according to the present invention;
FIG. 3 is a schematic structural view in front elevation of an apparatus for producing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 4 is a schematic structural view of a first case of the apparatus for producing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 5 is a schematic structural view of a lifting pendant of the apparatus for preparing an YAG laser crystal of the present invention;
FIG. 6 is a schematic diagram of a groove seat of an apparatus for preparing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 7 is a schematic view showing the structure of a crucible of an apparatus for producing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 8 is a schematic structural view of a shock-absorbing mechanism of an apparatus for preparing an YAG laser crystal according to the present invention;
FIG. 9 is a schematic perspective view of a first casing of an apparatus for producing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 10 is a schematic perspective view of a shock absorbing mechanism of an apparatus for producing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 11 is a schematic structural view of a second case of the apparatus for producing an yttrium aluminum garnet laser crystal of the present invention;
FIG. 12 is a flow chart of a method for preparing an yttrium aluminum garnet laser crystal of the present invention.
In the figure: 1. a main body mechanism; 101. a first case; 102. a hollow column; 103. a first servo motor; 104. a first threaded rod; 105. lifting a pull rod; 106. a fixing ring; 107. a strut; 108. a box door; 109. a PLC control box; 110. lifting the hanging piece; 111. a first screw; 112. a seed rod; 113. a second screw; 114. an electrical heating plate; 2. a hot melting mechanism; 201. a groove seat; 202. a crucible; 203. a first mounting groove; 204. a first electric heating net; 205. a second mounting groove; 206. a second electric heating net; 3. a damping mechanism; 301. a second case; 302. a transverse plate; 303. a spring; 304. a first guide groove; 305. a second guide block; 306. a second guide groove; 307. a second guide block; 4. a transmission mechanism; 401. a second servo motor; 402. a second threaded rod; 403. a first slider; 404. a slide bar; 405. a second slider; 406. mounting a plate; 407. a fan; 408. a limiting block; 409. a pressure sensor; 410. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 12, the present invention provides a technical solution:
an apparatus for preparing yttrium aluminum garnet laser crystal, comprising: the main body mechanism 1 comprises a first box body 101, a hollow column 102 is vertically installed in the middle of the top of the first box body 101, the bottom of the first box body 101 penetrates through the top of the first box body 101, a first servo motor 103 is fixed to the top of the hollow column 102, a first threaded rod 104 is welded to the output end of the first servo motor 103, the first threaded rod 104 is installed in the cavity of the hollow column 102, a lifting rod 105 is connected to the inner cavity of the hollow column 102 in a sliding mode, one end of the lifting rod 105 extends to the inner cavity of the first box body 101, the first threaded rod 104 is installed in the inner cavity of the lifting rod 105, the external threaded section of the first threaded rod 104 is in threaded connection with the inner wall of the lifting rod 105, a lifting pendant 110 is installed at the bottom of the lifting rod 105, a seed rod 112 is installed at the bottom of the lifting pendant 110, and electric heating plates 114 are installed in the inner cavities of two side walls of the first box body 101;
wherein, the two sides of the inner cavity of the first box 101 are both provided with the transmission mechanisms 4, the transmission mechanisms 4 are symmetrically arranged, the transmission mechanisms 4 comprise second servo motors 401, the number of the second servo motors 401 is two, the two second servo motors 401 are respectively in screw connection with the two sides of the top of the first box 101, the two sides of the inner cavity of the first box 101 are both vertically provided with second threaded rods 402, one end part of each second threaded rod 402 penetrates through the top of the first box 101 and is welded with the output end of the second servo motor 401, the outer wall of each second threaded rod 402 is in threaded connection with a first sliding block 403, the two sides of the inner cavity of the first box 101 far away from the electric heating plate 114 are both vertically provided with sliding rods 404, the outer wall of each sliding rod 404 is in sliding connection with a second sliding block 405, the second sliding block 405 is welded with a mounting plate 406 towards one side of the lifting pendant 110, and a fan 407 is fixed on one side of the mounting plate 406 towards the lifting pendant 110, a connecting rod 410 is welded between the first sliding block 403 and the second sliding block 405;
wherein, hot melt mechanism 2 is installed to the inner chamber bottom of first box 101, hot melt mechanism 2 includes groove seat 201, crucible 202 has been placed in the groove seat 201, the slide bar 404 is kept away from the one end tip of second servo motor 401 and all welds mutually with the top both sides of groove seat 201, first mounting groove 203 and second mounting groove 205 have been seted up respectively to the inner wall both sides of groove seat 201, install first electric heating net 204 and second electric heating net 206 in first mounting groove 203 and the second mounting groove 205 respectively, first electric heating net 204 and second electric heating net 206 laminate mutually with the both sides wall of crucible 202 respectively.
As shown in fig. 3, a PLC control box 109 is installed on one side of the outer wall of the first box 101, an electric control output end of the first servo motor 103 is electrically connected to an electric control input end of the PLC control box 109 through a wire, and the PLC control box 109 is used for controlling the forward and reverse rotation of the first servo motor 103.
As shown in fig. 4, a limiting block 408 is fixed to the lower portion of the sliding rod 404, a pressure sensor 409 is installed at the top of the limiting block 408, a signal output end of the pressure sensor 409 is in signal connection with a signal input end of the PLC control box 109, an electric control output end of the PLC control box 109 is electrically connected with an electric control input end of the second servo motor 401 through a wire, when the second sliding block 405 descends, the pressure sensor 409 touches the pressure sensor 409 installed at the top of the limiting block 408, the pressure sensor 409 feeds back a signal to the PLC control box 109, the PLC control box 109 sends an instruction to enable the second servo motor 401 to rotate in the reverse direction, and therefore the fan 407 moves upward again.
As shown in fig. 5, the first screws 111 penetrate through the upper portions of the two side walls of the lifting hanger 110, the lifting hanger 110 and the lifting rod 105 are mounted through the first screws 111, and the lifting hanger 110 is detachably connected to facilitate the assembly and disassembly of the lifting hanger 110.
As shown in FIG. 5, the second screws 113 penetrate through the lower portions of the two side walls of the lifting hanger 110, the lifting hanger 110 and the seed rod 112 are mounted through the second screws 113, the seed rod 112 is detachably connected, and the seed rod 112 is conveniently mounted and dismounted under the action of the above arrangement.
As shown in fig. 3 and 6, the input ends of the first electric heating net 204 and the second electric heating net 206 are electrically connected to the electric control output end of the PLC control box 109 through wires, respectively, and the heating time and the heating temperature of the first electric heating net 204 and the second electric heating net 206 are set by operating the PLC control box 109, so as to heat and melt the yag laser crystal raw material placed in the crucible 202.
As shown in fig. 1 and 8, the damping mechanism 3 is installed at the bottom of the first box 101, the damping mechanism 3 includes a second box 301, a transverse plate 302 is slidably connected to the top of an inner cavity of the second box 301, the top of the transverse plate 302 is welded to the bottom of the first box 101, a plurality of springs 303 are installed in the inner cavity of the second box 301, the springs 303 are distributed in a matrix form in the inner cavity of the second box 301, the tops of the springs 303 are connected to the bottom of the transverse plate 302, and under the action of the damping mechanism 3, vibration generated when the first box 101 works can be damped and buffered.
As shown in fig. 8, the middle parts of the two side walls of the inner cavity of the second box 301 are respectively provided with a first guide groove 304 and a second guide groove 306, the first guide groove 304 and the second guide groove 306 are respectively connected with a second guide block 305 and a second guide block 307 in a sliding manner, and the middle parts of the two side walls of the transverse plate 302 are respectively welded with the second guide block 305 and the second guide block 307, so that the guiding performance of the transverse plate 302 during the up-and-down movement is improved under the above setting.
As shown in fig. 1-3, a door 108 is hinged to the front side of the first box 101, a fixing ring 106 is fixed to the outer wall of the hollow column 102, supporting rods 107 are welded to two sides of the bottom of the fixing ring 106, the end portions, far away from the fixing ring 106, of the supporting rods 107 are welded to two sides of the top of the first box 101, yttrium aluminum garnet laser crystal raw materials can be conveniently taken and placed by opening the door 108, and the hollow column 102 can be fixed and supported by the fixing ring 106 and the supporting rods 107.
The invention also provides a method for preparing the yttrium aluminum garnet laser crystal, which comprises the following steps:
s1, placing raw materials, opening the door 108, placing the yttrium aluminum garnet laser crystal raw materials in the crucible 202, placing the crucible 202 in the groove seat 201, and closing the door 108;
s2, heating the raw material, setting the heating time and the heating temperature of the electric heating plate 114, the first electric heating net 204 and the second electric heating net 206 by operating the PLC control box 109, heating and melting the yttrium aluminum garnet laser crystal raw material placed in the crucible 202, and simultaneously increasing the temperature in the cavity of the first box 101;
s3, generating raw materials, operating the PLC control box 109 to enable the first servo motor 103 to rotate in the forward direction, enabling the first servo motor 103 to drive the first threaded rod 104 to rotate in the forward direction, enabling the first threaded rod 104 to rotate in the forward direction to drive the lifting rod 105 to rotate in the forward direction, enabling the lifting rod 105 to move downwards, enabling the lifting pendant 110 to drive the seed rod 112 to move downwards until the seed rod 112 moves into the crucible 202, enabling crystals generated after the crucible 202 is heated to be attached to the seed rod 112, taking the seed rod 112 as a core, and slowly growing upwards, at the moment, setting the first servo motor 103 to rotate in the uniform speed and reversely through the PLC control box 109, and enabling the seed rod 112 to lift the generated crystals upwards under the reverse rotation of the first servo motor 103 to generate columnar crystals;
s4, controlling the temperature in the furnace to make the temperature in the furnace uniformly distributed, setting the forward and reverse rotation and rotation frequency of the second servo motor 401 through the PLC control box 109, driving the forward rotation of the second threaded rod 402 when the second servo motor 401 rotates forward, driving the forward rotation of the first slide block 403 by the forward rotation of the second threaded rod 402, making the first slide block 403 move downward, driving the second slide block 405 to move downward through the connecting rod 410 when the first slide block 403 moves downward, driving the mounting plate 406 to move downward through the slide rod 404 by the second slide block 405, making the mounting plate 406 drive the fan 407 to move downward, when the second slide block 405 descends, touching the pressure sensor 409 arranged on the top of the limiting block 408, feeding back the signal to the PLC control box 109, sending an instruction by the PLC control box 109 to make the second servo motor 401 rotate backward, making the fan 407 move upward again, in the process of the up-and-down movement of the fan 407, the blown wind can uniformly distribute the heat in the first box 101, and the external condition of crystal generation is improved.
In conclusion, in the scheme, the raw material of the yttrium aluminum garnet laser crystal can be heated and melted through the hot melting mechanism 2;
in the scheme, the main body mechanism 1 can lift the generated yttrium aluminum garnet laser crystal upwards to enable the yttrium aluminum garnet laser crystal to generate a columnar crystal;
in the scheme, under the action of the transmission mechanism 4, the temperature in the first box body 101 can be uniform, and the heating effect of the yttrium aluminum garnet laser crystal is improved;
in this embodiment, the damping mechanism 3 can damp and cushion the main body mechanism 1.
The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An apparatus for preparing yttrium aluminum garnet laser crystal, characterized by comprising:
the main body mechanism (1), the main body mechanism (1) includes first box (101), hollow post (102) is installed perpendicularly at the middle part at the top of first box (101), the top in first box (101) is run through to the bottom of first box (101), the top of hollow post (102) is fixed with first servo motor (103), the output welding of first servo motor (103) has first threaded rod (104), just first threaded rod (104) is installed in hollow post (102) intracavity, the inner chamber sliding connection of hollow post (102) has lifting rod (105), and the one end of lifting rod (105) extends to the inner chamber of first box (101), first threaded rod (104) is installed in the inner chamber of lifting rod (105), just the outside screw thread section of first threaded rod (104) and lifting rod (105) inner wall threaded connection, a lifting pendant (110) is installed at the bottom of the lifting rod (105), a seed rod (112) is installed at the bottom of the lifting pendant (110), and electric heating plates (114) are installed on two side walls of an inner cavity of the first box body (101);
wherein, drive mechanism (4) are installed on both sides of the inner cavity of the first box body (101), the drive mechanism (4) is symmetrically arranged, the drive mechanism (4) comprises second servo motors (401), the number of the second servo motors (401) is two, the two second servo motors (401) are respectively in screw connection with both sides of the top of the first box body (101), the both sides of the inner cavity of the first box body (101) are respectively and vertically installed with second threaded rods (402), one end part of each second threaded rod (402) penetrates through the top of the first box body (101) and is welded with the output end of the second servo motor (401), the outer wall of each second threaded rod (402) is in threaded connection with a first sliding block (403), both sides of the inner cavity of the first box body (101) far away from the electric heating plate (114) are respectively and vertically installed with a sliding rod (404), the outer wall of each sliding rod (404) is in sliding connection with a second sliding block (405), a mounting plate (406) is welded on one side, facing the lifting pendant (110), of the second sliding block (405), a fan (407) is fixed on one side, facing the lifting pendant (110), of the mounting plate (406), and a connecting rod (410) is welded between the first sliding block (403) and the second sliding block (405);
wherein, hot melt mechanism (2) are installed to the inner chamber bottom of first box (101), hot melt mechanism (2) are including recess seat (201), crucible (202) have been placed in recess seat (201), slide bar (404) are kept away from the one end tip of second servo motor (401) and are all welded mutually with the top both sides of recess seat (201), first mounting groove (203) and second mounting groove (205) have been seted up respectively to the inner wall both sides of recess seat (201), install first electric heating net (204) and second electric heating net (206) in first mounting groove (203) and second mounting groove (205) respectively, first electric heating net (204) and second electric heating net (206) are laminated with the both sides wall of crucible (202) respectively mutually.
2. The apparatus of claim 1, wherein the apparatus comprises: PLC control box (109) are installed to outer wall one side of first box (101), the automatically controlled output of first servo motor (103) passes through the wire and the automatically controlled input electric connection of PLC control box (109).
3. The apparatus of claim 1, wherein the apparatus comprises: the lower part of slide bar (404) is fixed with stopper (408), pressure sensor (409) is installed at the top of stopper (408), the signal output part of pressure sensor (409) and the signal input part signal connection of PLC control box (109), the automatically controlled output part of PLC control box (109) passes through the wire and the automatically controlled input electric connection of second servo motor (401).
4. The apparatus of claim 1, wherein the apparatus comprises: first screw rods (111) penetrate through the upper portions of two side walls of the lifting hanging piece (110), the lifting hanging piece (110) and the lifting rod (105) are installed through the first screw rods (111), and the lifting hanging piece (110) is detachably connected.
5. The apparatus of claim 4, wherein the apparatus comprises: second screw rods (113) penetrate through the lower portions of the two side walls of the lifting hanger (110), the lifting hanger (110) and the seed rod (112) are installed through the second screw rods (113), and the seed rod (112) is detachably connected.
6. The apparatus of claim 1, wherein the apparatus comprises: the input ends of the first electric heating net (204) and the second electric heating net (206) are respectively and electrically connected with the electric control output end of the PLC control box (109) through wires.
7. The apparatus of claim 2, wherein the apparatus comprises: damper (3) are installed to the bottom of first box (101), damper (3) include second box (301), the inner chamber top sliding connection of second box (301) has diaphragm (302), the top of diaphragm (302) welds with the bottom of first box (101), a plurality of springs (303) are installed to the inner chamber of second box (301), and a plurality of spring (303) are the matrix and distribute, a plurality of in the intracavity of second box (301) the top of spring (303) all is connected with the bottom of diaphragm (302).
8. The apparatus of claim 7, wherein the apparatus comprises: first guide way (304) and second guide way (306) have been seted up respectively in the middle part of the inner chamber both sides wall of second box (301), sliding connection has second guide block (305) and second guide block (307) respectively in first guide way (304) and second guide way (306), the both sides wall middle part of diaphragm (302) welds with second guide block (305) and second guide block (307) mutually respectively.
9. The apparatus of claim 7, wherein the apparatus comprises: the front side of first box (101) articulates there is chamber door (108), the outer wall of hollow post (102) is fixed with solid fixed ring (106), branch (107) have all been welded to the bottom both sides of solid fixed ring (106), branch (107) are kept away from the tip of solid fixed ring (106) and are all welded with the top both sides of first box (101) mutually.
10. A method for preparing an yttrium aluminum garnet laser crystal is characterized by comprising the following steps:
s1, placing raw materials, opening a box door (108), placing the yttrium aluminum garnet laser crystal raw materials in a crucible (202), placing the crucible (202) in a groove seat (201), and closing the box door (108);
s2, heating the raw material, setting the heating time and the heating temperature of the electric heating plate (114), the first electric heating net (204) and the second electric heating net (206) by operating the PLC control box (109), heating and melting the yttrium aluminum garnet laser crystal raw material placed in the crucible (202), and simultaneously increasing the temperature in the cavity of the first box body (101);
s3, raw material generation, wherein the first servo motor (103) is driven to rotate in the positive direction by operating the PLC control box (109), the first servo motor (103) drives the first threaded rod (104) to rotate in the positive direction, the lifting rod (105) is driven to rotate in the positive direction by the positive rotation of the first threaded rod (104), so that the lifting rod (105) moves downwards, the lifting pendant (110) drives the seed rod (112) to move downwards until the seed rod (112) moves into the crucible (202), crystals generated after the crucible (202) is heated are attached to the seed rod (112) and grow slowly upwards by taking the seed rod (112) as a core, at the moment, a first servo motor (103) is arranged to rotate reversely at a constant speed through a PLC control box (109), and a seed rod (112) is enabled to pull the generated crystal upwards under the reverse rotation action of the first servo motor (103) so as to generate a columnar crystal;
s4, controlling the temperature in the furnace to be uniformly distributed, setting the forward and reverse rotation and rotation frequency of a second servo motor (401) through a PLC control box (109), driving the forward rotation of a second threaded rod (402) when the second servo motor (401) rotates forward, driving the forward rotation of a first sliding block (403) by the forward rotation of the second threaded rod (402), enabling the first sliding block (403) to move downwards, driving a second sliding block (405) to move downwards through a connecting rod (410) when the first sliding block (403) moves downwards, driving a mounting plate (406) to move downwards through a sliding rod (404) by the second sliding block (405), driving a fan (407) to move downwards by the mounting plate (406), touching a pressure sensor (409) arranged at the top of a limiting block (408) when the second sliding block (405) descends, and feeding back a signal to the PLC control box (109) by the pressure sensor (409), the PLC control box (109) sends out an instruction to enable the second servo motor (401) to rotate reversely, so that the fan (407) moves upwards again, and in the process of up-and-down movement of the fan (407), blown wind can uniformly distribute heat in the first box body (101), and the external condition of crystal generation is improved.
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Application publication date: 20210727 |