CN213795935U - Lithium tantalate crystal grinder - Google Patents

Abstract

The utility model relates to a lithium tantalate crystal grinding device in the technical field of lithium tantalate crystal processing, which comprises a workbench and a rotating motor, wherein the rotating motor is in transmission connection with a crystal holding tray on the workbench, the top of the crystal holding tray is provided with a crystal placing groove, the bottom of the crystal holding tray is provided with an annular guide groove, a plurality of ball grooves are uniformly distributed in the annular shape on the workbench, balls are arranged in the ball grooves and are in rolling connection with the annular guide groove, the workbench is also provided with an inner retainer ring, an outer retainer ring and a telescopic bracket, the top of the telescopic bracket is connected with a support plate, a grinding liquid storage tank and a grinding motor are arranged above the support plate, the middle part of the support plate is rotatably connected with a grinding hollow shaft, the grinding hollow shaft is characterized in that a driving wheel is arranged in the middle of the grinding hollow shaft, a grinding disc is arranged at the bottom of the grinding hollow shaft, the driving wheel is in transmission connection with a grinding motor, a grinding fluid outlet hole is formed in the bottom of the grinding disc, and an inner hole inlet of the grinding hollow shaft is in rotary and sealing connection with a discharging pipe of a grinding fluid storage tank. The device can reduce the consumption of the grinding liquid and improve the grinding efficiency of the lithium tantalate crystal.

Description

Lithium tantalate crystal grinder

Technical Field

The utility model belongs to the technical field of lithium tantalate crystal processing, specifically, relate to a lithium tantalate crystal grinder.

Background

The lithium tantalate material has the advantages of high detection figure of merit, Curie temperature as high as 665 ℃, easiness in processing, high material strength, easiness in realization of thickness, strong capability of resisting the influence of external environment, light heat dissipation and the like, so that the lithium tantalate material is an ideal material for manufacturing the pyroelectric infrared detector. The lithium tantalate crystal can be thinned and polished to prepare the pyroelectric detector sensitive element based on the lithium tantalate.

The thinning of the lithium tantalate crystal is realized by direct contact friction between grinding particles in grinding fluid and the crystal surface. The existing grinding device is inconvenient to realize accurate and continuous addition of grinding fluid, has large consumption of the grinding fluid and low working efficiency, and needs to be improved urgently.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a lithium tantalate crystal grinding device, which comprises a workbench, wherein a motor support is arranged below the workbench, a rotating motor is arranged on the motor support, an output shaft of the rotating motor penetrates through the workbench and is connected with a crystal holding disc above the workbench, a plurality of crystal holding grooves are arranged at the top of the crystal holding disc along the same circumferential direction, an annular guide groove is arranged at the bottom of the crystal holding disc, a plurality of ball grooves are uniformly distributed on the table top of the workbench in an annular manner, balls are arranged in the ball grooves and are in rolling connection with the annular guide groove, an inner retainer ring, an outer retainer ring and a telescopic support are further arranged on the workbench, the inner retainer ring is arranged outside the ball grooves and is positioned below the crystal holding disc, the outer retainer ring is arranged outside the crystal holding disc, the top of the outer retainer ring is higher than the upper disc surface of the crystal holding disc, two synchronous oil cylinders are arranged at the bottom of the telescopic support, the synchronous oil cylinders are arranged on the outer side of the outer retainer ring, the tops of the two synchronous oil cylinders are connected with a supporting plate, a grinding fluid storage tank with a stirrer and a grinding motor are arranged above the supporting plate, and the middle part of the supporting plate is rotationally connected with a grinding hollow shaft, the middle part of the grinding hollow shaft is provided with a driving wheel, the bottom part of the grinding hollow shaft is provided with a grinding disc, the driving wheel and the grinding disc are both arranged below the supporting plate, an output shaft of the grinding motor downwards penetrates through the supporting plate and is connected with a driving wheel, the driving wheel is in transmission connection with the driving wheel through the conveying belt, the bottom of the grinding disc is at least provided with a grinding fluid outlet hole, the grinding fluid outlet is communicated with an inner hole outlet of the grinding hollow shaft, an inner hole inlet of the grinding hollow shaft is rotatably and hermetically connected with a discharging pipe of the grinding fluid storage tank, and the blanking pipe is provided with a flow regulating valve, and the rotation directions of the crystal holding disc and the grinding disc are opposite.

Preferably, be equipped with the recess that converges on the mesa of the workstation between outer retaining ring and the interior retaining ring, the bottom of the recess that converges is equipped with the fluid-discharge tube, be equipped with the flowing back valve on the fluid-discharge tube, the below of workstation is located to the flowing back valve, is favorable to concentrating the emission with the grinding waste liquid, guarantees operational environment's clean and tidy.

Preferably, the top of the grinding fluid storage tank is provided with a grinding fluid adding port, and the grinding fluid adding port is in threaded connection with a plug, so that grinding fluid can be conveniently replenished.

Preferably, the stirrer is an electric stirrer, and continuous and uniform stirring of the grinding fluid is realized.

Preferably, the grinding fluid outlet hole corresponds to the circumference of the center of the crystal placement groove, so that the grinding fluid is accurately supplemented along the grinding operation path, the lithium tantalate crystal is efficiently ground, and the consumption of the grinding fluid is reduced.

Preferably, the supporting plate is rotatably connected with the grinding hollow shaft through a thrust bearing, so that the connection stability of the grinding hollow shaft and the supporting plate in the grinding process of the grinding disc is ensured.

The utility model also comprises other devices or components which can lead the lithium tantalate crystal grinding device to be normally used and are conventional technical means in the field, such as a control mechanism of an oil cylinder; in addition, the device and the component which are not limited in the utility model all adopt the conventional technical means in the field.

The utility model discloses a theory of operation is, when this device uses, lithium tantalite crystal that will wait to grind places the crystal standing groove at crystal holding dish top in, control synchronous hydro-cylinder makes the telescopic bracket move down, make the lithium tantalite crystal that abrasive disc and crystal held on the dish contact, open the flow control valve on the unloading pipe of lapping liquid storage tank, it adds the lapping liquid to portal through the lapping liquid, make the lapping liquid supply to between abrasive disc and the crystal holding dish, start rotating electrical machines and grinding machine, crystal holding dish and abrasive disc reverse rotation, realize the high-efficient grinding to lithium tantalite crystal, can prevent through setting up the agitator that the lapping liquid in the lapping liquid storage tank from taking place to deposit the layering, guarantee the stability of lapping liquid quality. Through set up interior retaining ring on the workstation, can prevent that the lapping liquid from getting into the ball groove, guarantee the normal rotation of ball, and then guarantee the rotatory stability of crystal holding plate, through setting up outer retaining ring, can prevent that the lapping liquid from splashing and polluting operational environment. And after the grinding is finished, controlling the synchronous oil cylinder to enable the telescopic bracket to move upwards, and taking out the ground lithium tantalate crystals.

The beneficial effects of the utility model are that, can realize accurate and the continuous interpolation of lapping liquid, be favorable to reducing the lapping liquid consumption to improve the grinding efficiency of lithium tantalate crystal.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure in the embodiment of the present invention.

Fig. 2 is a schematic bottom structure diagram of the polishing disc in the embodiment of the present invention.

Fig. 3 is a schematic top view of a crystal-holding tray according to an embodiment of the present invention.

Detailed Description

The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.

Examples

As shown in figures 1-3, the utility model provides a lithium tantalate crystal grinding device, which comprises a workbench 1, a motor support 2 is arranged below the workbench 1, a rotating motor 3 is arranged on the motor support 2, an output shaft of the rotating motor 3 passes through the workbench 1 and is connected with a crystal holding disc 4 above the workbench 1, 6 crystal holding grooves 5 are arranged on the top of the crystal holding disc 4 along the same circumferential direction, an annular guide groove is arranged at the bottom, a plurality of ball grooves are uniformly distributed on the table surface of the workbench 1 in an annular manner, balls 6 are arranged in the ball grooves, the balls 6 are in rolling connection with the annular guide groove, an inner retainer ring 7, an outer retainer ring 8 and a telescopic support are further arranged on the workbench 1, the inner retainer ring 7 is arranged on the outer side of the ball grooves and is positioned below the crystal holding disc 4, the outer retainer ring 8 is arranged on the outer side of the crystal holding disc 4, and the top of the outer retainer ring is higher than the surface of the crystal holding disc 4, the bottom of the telescopic support is provided with two synchronous oil cylinders 9, the synchronous oil cylinders 9 are arranged on the outer side of an outer retainer ring 8, the tops of the two synchronous oil cylinders 9 are connected with a support plate 10, a grinding fluid storage tank 11 with a stirrer and a grinding motor 12 are arranged above the support plate 10, the middle part of the support plate 10 is rotatably connected with a grinding hollow shaft 13, the middle part of the grinding hollow shaft 13 is provided with a driving wheel 14, the bottom of the grinding hollow shaft 13 is provided with a grinding disc 15, the driving wheel 14 and the grinding disc 15 are both arranged below the support plate 10, an output shaft of the grinding motor 12 downwards penetrates through the support plate 10 and is connected with a driving wheel 16, the driving wheel 16 is in transmission connection with the driving wheel 14 through a conveying belt, the bottom of the grinding disc 15 is provided with 2 grinding fluid outlets 17, the grinding fluid outlets 17 are communicated with an inner hole outlet of the grinding hollow shaft 13, an inner hole inlet of the grinding hollow shaft 13 is rotatably and hermetically connected with a blanking pipe of the grinding fluid storage tank 11, and a flow regulating valve is arranged on the blanking pipe, and the rotation directions of the crystal containing disc 4 and the grinding disc 15 are opposite.

Be equipped with the recess 18 that converges on the mesa of workstation 1 between outer retaining ring 8 and the interior retaining ring 7, the bottom of recess 18 that converges is equipped with the fluid-discharge tube, be equipped with the flowing back valve on the fluid-discharge tube, the below of workstation 1 is located to the flowing back valve, is favorable to concentrating the emission of grinding waste liquid, guarantees operational environment's clean and tidy. The top of the grinding fluid storage tank 11 is provided with a grinding fluid adding port, and the grinding fluid adding port is in threaded connection with a plug, so that grinding fluid can be conveniently added. The stirrer is an electric stirrer, and continuous and uniform stirring of the grinding fluid is realized. The grinding fluid outlet 17 corresponds to the circumference of the center of the crystal placing groove 5, so that the grinding fluid is accurately supplemented along the grinding operation path, the high-efficiency grinding of lithium tantalate crystals is ensured, and the consumption of the grinding fluid is reduced. The supporting plate 10 is rotatably connected with the grinding hollow shaft 13 through a thrust bearing, so that the connection stability of the grinding hollow shaft 13 and the supporting plate 10 in the grinding process of the grinding disc 15 is ensured.

The utility model discloses a theory of operation is, when this device uses, lithium tantalite crystal that will wait to grind is placed in the crystal standing groove 5 at crystal holding dish 4 top, control synchronous cylinder 9 makes telescopic bracket move down, lithium tantalite crystal on messenger's abrasive disc 15 and the crystal holding dish 4 contacts, open the flow control valve on the unloading pipe of lapping liquid storage tank 11, it adds the lapping liquid to leave hole 17 through the lapping liquid flow, make the lapping liquid supply to between lapping disc 15 and the crystal holding dish 4, start rotating electrical machines 3 and grinding electrical machines 12, crystal holding dish 4 and 15 reverse rotation of abrasive disc, realize the high-efficient grinding to lithium tantalite crystal, can prevent that the lapping liquid in the lapping liquid storage tank 11 from taking place to deposit the layering through setting up the agitator, guarantee the stability of lapping liquid quality. Through set up interior retaining ring 7 on workstation 1, can prevent that the lapping liquid from getting into the ball groove, guarantee the normal rotation of ball 6, and then guarantee the rotatory stability of crystal holding plate 4, through setting up outer retaining ring 8, can prevent that the lapping liquid from splashing and polluting operational environment. After the grinding is finished, the synchronous oil cylinder 9 is controlled to enable the telescopic support to move upwards, and the ground lithium tantalate crystals can be taken out.

The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.

Claims (6)

1. The utility model provides a lithium tantalate crystal grinder, includes the workstation, its characterized in that: a motor bracket is arranged below the workbench, a rotating motor is arranged on the motor bracket, an output shaft of the rotating motor penetrates through the workbench and is connected with a crystal containing disc above the workbench, a plurality of crystal containing grooves are arranged at the top of the crystal containing disc along the same circumferential direction, an annular guide groove is arranged at the bottom of the crystal containing disc, a plurality of ball grooves are uniformly distributed on the table top of the workbench in an annular manner, balls are arranged in the ball grooves and are in rolling connection with the annular guide groove, an inner retainer ring, an outer retainer ring and a telescopic bracket are further arranged on the workbench, the inner retainer ring is arranged outside the ball grooves and is positioned below the crystal containing disc, the outer retainer ring is arranged outside the crystal containing disc, the top of the outer retainer ring is higher than the upper disc surface of the crystal containing disc, two synchronous oil cylinders are arranged at the bottom of the telescopic bracket and are arranged outside the outer retainer ring, and supporting plates are connected with the tops of the two synchronous oil cylinders, the utility model discloses a crystal storage device, including backup pad, grinding motor, drive wheel, grinding motor, conveyer belt, flow control valve, the backup pad top is equipped with the lapping liquid storage tank and the grinding motor of taking the agitator, and the middle part of backup pad rotates and is connected with the grinding hollow shaft, the middle part of grinding the hollow shaft is equipped with the drive wheel, the bottom is equipped with the abrasive disc, drive wheel and abrasive disc all locate the backup pad below, the output shaft of grinding motor passes the backup pad downwards and is connected with the drive wheel, the drive wheel passes through the conveyer belt and is connected with the drive wheel transmission, the abrasive disc bottom is equipped with a lapping liquid at least and flows out the hole, the lapping liquid flows out the hole and is linked together with the hole export of grinding the hollow shaft, the hole import of grinding the hollow shaft rotates and sealing connection with the unloading pipe of lapping liquid storage tank, and is equipped with flow control valve on the unloading pipe, the crystal holds the dish and revolves to opposite with the abrasive disc.

2. The lithium tantalate crystal grinding apparatus according to claim 1, wherein: the table top of the workbench between the outer retainer ring and the inner retainer ring is provided with a confluence groove, the bottom of the confluence groove is provided with a liquid discharge pipe, the liquid discharge pipe is provided with a liquid discharge valve, and the liquid discharge valve is arranged below the workbench.

3. The lithium tantalate crystal grinding apparatus according to claim 1, wherein: the top of the grinding fluid storage tank is provided with a grinding fluid adding port, and the grinding fluid adding port is in threaded connection with a plug.

4. The lithium tantalate crystal grinding apparatus according to claim 1, wherein: the stirrer is an electric stirrer.

5. The lithium tantalate crystal grinding device according to any one of claims 1 to 4, wherein: the grinding fluid outlet hole corresponds to the circumference of the center of the crystal holding groove.

6. The lithium tantalate crystal grinding apparatus according to claim 5, wherein: the supporting plate is rotatably connected with the grinding hollow shaft through a thrust bearing.

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