CN213854822U

CN213854822U - Tooth crushing instrument

Info

Publication number: CN213854822U
Application number: CN202022136654.0U
Authority: CN
Inventors: 李越; 钟拥完
Original assignee: Guangzhou Jingxinze Automation Equipment Co ltd; Guangzhou criminal science and technology research institute
Current assignee: Guangzhou Jingxinze Automation Equipment Co ltd; Guangzhou criminal science and technology research institute
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-08-03
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to an appearance is smashed to tooth, including the shell and the bottom plate that cover each other and close, be equipped with following equipment in the cavity that shell and bottom plate constitute: a main controller; the disposable tooth crushing box is internally provided with a sealing chamber, and a movable grinding head for grinding and crushing teeth is arranged in the sealing chamber; the main power output mechanism is provided with a power output shaft which can stretch out and draw back, and the power output shaft can be connected with the movable grinding head of the disposable tooth grinding box after extending out and drives the movable grinding head to work; a conveying mechanism for conveying the disposable tooth grinding box to the position right in front of the power output shaft; a step-by-step speed reducing mechanism for connecting the main power output mechanism; and the direct current power supply is electrically connected with the stepping speed reducing mechanism, the main power output mechanism and the conveying mechanism. The utility model has the advantages of simple operation, high working efficiency, low noise and low cost, and is sealed during processing.

Description

Tooth crushing instrument

Technical Field

The utility model relates to a front end processing and autologous tooth bone meal implant medical treatment such as tooth DNA detects, the technical field who detects specifically are a tooth appearance of smashing, use under normal atmospheric temperature.

Background

In the existing tooth DNA detection process, teeth need to be crushed to a certain granularity so as to carry out DNA detection. When the autologous tooth bone powder is used for implanting teeth, the teeth also need to be crushed into powder.

At present, the front end treatment of tooth DNA detection simply uses a container, and the teeth are smashed by tools manually, so that the noise is high, and the time and the labor are wasted. The common use is to adopt low temperature crushing appearance, utilize liquid nitrogen to utilize high frequency impact to smash after will being smashed the object and cooling to tens under-zero degree, complex operation and use inconvenient, operating time is long. Meanwhile, liquid nitrogen needs to be prepared frequently, so that potential safety hazards are caused, and the use cost is high, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a pair of appearance is smashed to tooth, it has easy operation, work efficiency is high, add man-hour sealed setting, noise reduction, advantage with low costs.

The technical scheme of the utility model: a tooth crushing instrument comprises a shell and a bottom plate which are mutually covered, and the following equipment is arranged in a cavity formed by the shell and the bottom plate:

a main controller for controlling the operation of each electrical component and the receiving and processing of each signal and data;

the disposable tooth crushing box is internally provided with a sealing chamber, and a movable grinding head for grinding and crushing teeth is arranged in the sealing chamber;

the main power output mechanism is provided with a power output shaft which can stretch out and draw back, and the power output shaft can be connected with the movable grinding head of the disposable tooth grinding box after extending out and drives the movable grinding head to work;

a conveying mechanism for conveying the disposable tooth grinding box to the position right in front of the power output shaft;

a step-by-step speed reducing mechanism for connecting the main power output mechanism;

a DC power supply electrically connected with the stepping speed reducing mechanism, the main power output mechanism and the conveying mechanism;

the main controller is electrically connected with the stepping speed reducing mechanism and the conveying mechanism.

In order to facilitate operation and further reduce noise, the disposable tooth grinding box comprises a box body, a fixed grinding head and a movable grinding head, wherein the fixed grinding head and the movable grinding head are arranged at two ends of the box body respectively, the fixed grinding head, the movable grinding head and the box body are matched to form the interior of the box body, a sealing groove is formed in each of the fixed grinding head and the movable grinding head, a sealing ring is arranged in each sealing groove, a window used for placing teeth into the sealing cavity is formed in the front end of the box body, and a blocking piece is arranged on each window.

In order to make the whole structure operation simpler, a boss for determining the positioning direction of the fixed grinding head is arranged on one side of the fixed grinding head, an inner hexagonal positioning clamping groove is arranged on one side of the movable grinding head, a hexagonal block matched with the inner hexagonal positioning clamping groove is arranged at one end of a power output shaft, protruding sharp teeth positioned in a sealed cavity are arranged on the other side of the movable grinding head and the other side of the fixed grinding head, and the movable grinding head can reciprocate and rotate in the box body so as to enable the protruding sharp teeth on the movable grinding head to be meshed with the protruding sharp teeth on the fixed grinding head.

In order to facilitate the operation, an operation screen for taking charge of the operation sending of instructions, the setting, the display and the query of related data and a scanner for taking charge of the data identification and scanning of the sample tooth grinding box are arranged at the front end of the shell, a heat dissipation device for reducing the temperature in the grinding instrument and adsorbing dust in the grinding instrument and a USB interface for copying data are arranged on the side edge of the shell, the operation screen, the USB interface and the scanner are electrically connected with the main controller, an access port is arranged at the front end of the shell, and a cabin cover for closing the access port is elastically connected to the conveying mechanism.

In order to achieve shock absorption and avoid generating loud noise during movement, a shock absorption foot pad is arranged below the bottom plate.

Preferably, the scanner is installed in a right upper scanning window at the front end of the shell, and the USB interface is installed at the front end of the right side of the shell.

Preferably, the shock absorption foot pads are arranged at the positions of four corner ends below the bottom plate, and the number of the shock absorption foot pads is 4.

In order to simplify the whole operation, the conveying mechanism is arranged at the right end of the main power output mechanism, the conveying mechanism comprises a screw rod stepping motor, a linear guide rail, a fixed base and a conveying platform, the output of the screw rod stepping motor is connected with a screw rod, the screw rod is provided with a screw rod slide block, the conveying platform is connected on a linear guide bar which is connected with the linear guide rail in a sliding way, the other end of the linear guide bar penetrates through the fixed base and then is connected on the screw rod sliding block, the screw rod stepping motor is fixed on the side edge of the fixed base, the box body is clamped in the fixed base through a boss, the conveying table is internally provided with a positioning pin for positioning the tooth grinding box, and the side edge in the fixed base is provided with a positioning clamping groove which is matched with the boss and can clamp the fixed grinding head under the working state so that the fixed grinding head is kept in a non-rotatable state.

Preferably, the main power output mechanism comprises a mounting connection plate and a body as a framework which are matched with each other, the power output shaft penetrates through the connection plate and the body, the mounting connection plate is mounted on the stepping speed reduction mechanism, a transition shaft which is sleeved in an output main shaft of the stepping speed reduction mechanism and is connected with the output main shaft through a key to transmit power is arranged on the left side of the power output shaft, the power output shaft and the transition shaft can axially slide and transmit torque, a plane bearing is arranged in the mounting connection plate, a pressure adjusting seat body which is positioned in the body is arranged on the right side of the plane bearing, the pressure adjusting seat body is used for bearing axial force and can rotate along with the plane bearing in the circumferential direction, a pressure adjusting screw, a pressure spring and a spring column are sequentially mounted in the pressure adjusting seat body from left to right, the middle part of the power output shaft is of a screw rod structure and is connected with a screw nut, the nut is sleeved in a friction resistance sleeve, a radial fit clearance is arranged between the friction resistance sleeve and the nut, the friction resistance sleeve is fixed in the body by screws, and the nut is tightly attached to the end face of the friction resistance sleeve through the spring pressure transmitted by the spring column.

Preferably, a clearance of 1mm is reserved between the left end of the screw and the right end of the pressure adjusting seat body to ensure that the screw has a movable space when receiving axial force, a sheath positioned outside the power output shaft is arranged at the right end of the body, and a stroke limiting sleeve used for adjusting and limiting the limit position of the power output shaft extending out of the right end is arranged at the left end of the screw rod of the power output shaft.

The utility model provides a pair of appearance is smashed to tooth's technological effect is: the integral operation is simple, the labor cost is reduced, the working efficiency is high, the sealing effect is achieved during machining, the noise is reduced in sequence, and the cost is low.

Drawings

FIG. 1 is an external view of a tooth grinding apparatus according to the present embodiment;

FIG. 2 is a view showing an internal structure of a tooth grinding apparatus according to the present embodiment;

FIG. 3 is a schematic view showing the entire structure of the tooth grinding box according to the present embodiment;

FIG. 4 is a front view of the tooth grinding box in this embodiment;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic structural diagram of the main power output mechanism in the present embodiment;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

fig. 8 is a schematic structural view of the conveying mechanism in the embodiment.

In the reference symbols: 1. an operation screen; 2. a housing; 3. a hatch cover; 4. a scanner; 5, USB interface; a heat sink 6; 7. a shock-absorbing foot pad; 8. a base plate; 9. a main power output mechanism; 9-1, mounting a connecting plate; 9-2. the body; 9-3. power output shaft; 9-4. transition shaft; 9-5. plane bearing; 9-8, a pressure adjusting seat body; 9-6. pressure adjusting screw; 9-7, pressing spring; 9-9. spring posts; 9-10. a nut; 9-11, friction resistance sleeve; 9-12. sheath; 9-13, a travel limit sleeve; 9-14 parts of hexagonal blocks; 10. a tooth grinding box; 10-1. a box body; 10-2, fixing a grinding head; 10-3, a movable grinding head; 10-4. a blocking piece; 10-5. sealing ring; 10-6, sealing the chamber; 10-7, sealing groove; 10-8. window; 10-9, a hexagonal positioning clamping groove; 10-10, protruding sharp teeth; 10-11. boss; 11. a conveying mechanism; 12. a step-by-step reduction mechanism; 13. a main controller; 14. a screw stepping motor 14; 15. a direct current power supply; 11-1, linear guide rail; 11-2, fixing a base; 11-3, positioning pins; 11-4, a first positioning clamping groove; 11-5, a conveying table; 11-6, linear guide bar; 14-1. a screw rod; 14-2, a screw rod slide block; a stepper motor controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-2, the present invention provides a technical solution: a tooth crushing instrument comprises a shell 2 and a bottom plate 8 which are mutually covered, and the following equipment is arranged in a cavity formed by the shell 2 and the bottom plate 8:

a main controller 13 for controlling the operation of each electrical component and the receiving and processing of each signal and data;

a disposable tooth grinding box 10, wherein a sealing chamber 10-6 is arranged in the disposable tooth grinding box 10, and a movable grinding head 10-3 for grinding and grinding teeth is arranged in the sealing chamber 10-6;

a main power output mechanism 9 which is provided with a power output shaft 9-3 which can stretch out and draw back, and the power output shaft 9-3 can be connected with the movable grinding head 10-3 of the disposable tooth grinding box 10 after extending out and drive the movable grinding head 10-3 to work;

a conveying mechanism 11 for conveying the disposable tooth grinding box 10 to the position right in front of the power output shaft 9-3;

a step-by-step speed reduction mechanism 12 for connecting the main power output mechanism 9;

a DC power supply 15 electrically connected with the stepping speed reducing mechanism 12, the main power output mechanism 9 and the conveying mechanism 11;

the main controller 13 is electrically connected to the stepping reduction mechanism 12 and the conveying mechanism 11.

As shown in fig. 3 to 5, for convenience of operation and further reduction of noise, the disposable tooth grinding box 10 includes a box body 10-1, a fixed grinding head 10-2 and a movable grinding head 10-3, the fixed grinding head 10-2 and the movable grinding head 10-3 are respectively disposed at both ends of the box body 10-1, the fixed grinding head 10-2 and the movable grinding head 10-3 are matched with the box body 10-1 to form the sealed chamber 10-6 inside the box body 10-1, a sealing groove 10-7 is disposed on each of the fixed grinding head 10-2 and the movable grinding head 10-3, a sealing ring 10-5 is disposed in the sealing groove 10-7, a window 10-8 for placing a tooth into the sealed chamber 10-6 is disposed at the front end of the box body 10-1, and a plugging piece 10-4 is arranged on the window 10-8.

In order to make the entire structural operation simpler, a boss 10-11 for determining the orientation direction of the fixed grinding stones 10-2 is provided at one side of the fixed grinding stones 10-2, one side of the movable grinding head 10-3 is provided with an inner hexagonal positioning clamping groove 10-9, a hexagonal block 9-14 matched with the inner hexagonal positioning clamping groove 10-9 is arranged at one end of the power output shaft 9-3, the other side of the movable grinding head 10-3 and the other side of the fixed grinding head 10-2 are both provided with protruding sharp teeth 10-10 positioned in the sealed chamber 10-6, the movable grinding head 10-3 can reciprocate and rotate in the box body 10-1, so that the protruding sharp teeth 10-10 on the movable grinding head 10-3 are engaged with the protruding sharp teeth 10-10 on the fixed grinding head 10-2.

For convenience of operation, an operation screen 1 for taking charge of operation sending of instructions, setting, displaying and inquiring of relevant data and a scanner 4 for taking charge of data identification and scanning of a sample tooth grinding box are arranged at the front end of a shell 2, a heat dissipation device 6 for reducing the temperature in the grinding instrument and adsorbing dust in the grinding instrument and a USB interface 5 for copying data are arranged on the side edge of the shell 2, the operation screen 1, the USB interface 5 and the scanner 4 are electrically connected with a main controller 13, an access port 2-1 is arranged at the front end of the shell 2, and a cabin cover 3 for closing the access port 2-1 is elastically connected to a conveying mechanism 11.

In order to absorb shock and avoid generating loud noise during movement, a shock absorbing foot pad 7 is arranged below the bottom plate 8.

Preferably, the scanner 4 is installed in the upper right scanning window at the front end of the housing 2, and the USB interface 5 is installed at the front end of the right side of the housing 2.

Preferably, the shock absorbing pads 7 are installed at four corner ends of the lower part of the

base plate

8, 4 in total, to absorb slight shock generated when the tooth crusher is operated, while keeping the device from being easily moved.

As shown in fig. 2 and 8, in order to make the whole operation simpler, the conveying mechanism 11 is installed at the right end of the main power output mechanism 9, the conveying mechanism 11 includes a screw rod stepping motor 14, a linear guide rail 11-1, a fixed base 11-2 and a conveying platform 11-5, the screw rod stepping motor 14 is connected with the screw rod 14-1 in output, a screw rod slider 14-2 is arranged on the screw rod 14-1, the conveying platform 11-5 is connected with a linear guide bar 11-6 slidably connected with the linear guide rail 11-1, the other end of the linear guide bar 11-6 is connected with the screw rod slider 14-2 after penetrating through the fixed base 11-2, the screw rod stepping motor 14 is fixed at the side of the fixed base 11-2, the box body 10-1 is clamped in the fixed base 11-2 through a boss 10-11, a positioning pin 11-3 used for positioning the position of the tooth grinding box is arranged in the conveying table 11-5, a first positioning clamping groove 11-4 which is matched with the boss 10-11 and can clamp the fixed grinding head 10-2 in a working state is arranged on the side edge in the fixed base 11-2, so that the fixed grinding head 10-2 is kept in a non-rotatable state, when the tooth grinding machine works, the conveying table 11-5 slides to be positioned in the fixed base 11-2 along with the linear guide strip 11-6, and the boss 10-11 on the fixed grinding head 10-2 and the first positioning clamping groove 11-4 are ensured to realize the fixing effect on the position of the box body.

As shown in fig. 6 and 7, preferably, the main power output mechanism 9 includes a mounting connection plate 9-1 and a main body 9-2 as a framework, the power output shaft 9-3 penetrates through the connection plate 9-1 and the main body 9-2, the mounting connection plate 9-1 is mounted on the step reduction mechanism 12, a transition shaft 9-4 which is sleeved in an output main shaft of the step reduction mechanism 12 and is connected with the output main shaft through a key is arranged at the left side of the power output shaft 9-3, the power output shaft 9-3 and the transition shaft 9-4 can slide axially and can transmit torque, a flat bearing 9-5 is arranged in the mounting connection plate 9-1, a pressure adjusting seat 9-8 in the main body 9-2 is arranged at the right side of the flat bearing 9-5, the pressure regulating body 9-8 is adapted to receive axial force and is capable of performing a circumferential rotational movement along with the flat bearing 9-5, a pressure adjusting screw 9-6, a pressure spring 9-7 and a spring post 9-9 are sequentially arranged in the pressure adjusting seat body 9-8 from left to right, the middle part of the power output shaft 3 is a screw rod structure and is connected with a screw nut 9-10, the screw nut 9-10 is sleeved in a friction resistance sleeve 9-11, a radial fit clearance is arranged between the friction resistance sleeve 9-11 and the screw nut 9-10, the friction resistance sleeve 9-11 is fixed in the body 9-2 by screws, and the screw nut 9-10 is tightly attached to the end face of the friction resistance sleeve 9-11 by the spring pressure transmitted by the spring column 9-9.

Preferably, a clearance of 1mm is reserved between the left end of the nut 9-10 and the right end of the pressure adjusting seat body 9-8 to ensure that the nut 9-10 has a moving space when receiving an axial force, a sheath 9-12 positioned outside the power output shaft 9-3 is arranged at the right end of the body 9-2, a stroke limit sleeve 9-13 used for adjusting and limiting the limit position of the right end extending out of the power output shaft 3 is arranged at the left end of the screw rod part of the power output shaft 9-3, in the embodiment, the nut 9-10 is tightly attached to the end face of the friction resistance sleeve 9-11 through the spring pressure transmitted by the spring column 9-9, and the nut is kept in a static state by virtue of the action of the friction force when no external force is applied. The left end of the screw nut 9-10 and the right end of the pressure adjusting seat body 9-8 are provided with a clearance of about 1mm so as to ensure that the screw nut 9-10 has a movable space when being subjected to axial force. When the power output shaft 9-3 is subjected to the resistance of the acted target object, the resistance is transmitted to the screw nut 9-10, at the moment, the screw nut 9-10 overcomes the spring pressure and is separated from the end surface contact with the friction resistance sleeve 9-11, the friction force is relieved, the power output shaft 9-3 rotates together, and meanwhile, the axial movement of the power output shaft 9-3 is stopped. At the moment, the power output shaft outputs constant pressure and torque to a acted target object, the sheath 9-12 is installed at the right end of the body 9-2 and used for guiding and centering the power output shaft 9-3, the stroke limiting sleeve 9-13 is installed at the left end of a screw rod part of the power output shaft 9-3 and used for adjusting and limiting the limit position of the power output shaft 9-3 extending towards the right end, the pressure adjusting screw 9-6, the pressure spring 9-7 and the spring column 9-9 are all installed in the pressure adjusting seat body 9-8, and the spring column 9-7 can move axially by overcoming the spring force when being subjected to axial force. The left end of the pressure regulating base body 9-8 is connected with the plane bearing 9-5 to bear axial force and carry out circumferential rotation movement along with the axial force.

In the embodiment, the operation panel 1, the scanner 4, the USB interface 5 and the heat sink 6 are all mounted on the housing 2; the operation screen 1 is responsible for operation sending of instructions, setting, display and query of related data; the scanner 4 is responsible for data identification scanning of the sample tooth grinding box; the USB interface 5 is used for copying data; the heat dissipation window 6 is provided with a filter screen and a heat dissipation fan for reducing the temperature in the pulverizer and adsorbing dust in the pulverizer, and the shock absorption foot pad 7 is arranged below the bottom plate 8; the main power output mechanism 9 is connected with the stepping speed reducing mechanism 12; the main power output mechanism 9 is internally provided with a linkage output structure of axial force and torque, so that the power output shaft 9-3 can still continue to rotate when the axial resistance is too large and the feeding can not be carried out. The right end of a power output shaft 9-3 is provided with a hexagonal block 9-14 which is automatically guided into a hexagonal positioning clamping groove 10-6 arranged in a tooth grinding box during working, and a grinding head is driven to grind and grind teeth in a spinning mode; the conveying mechanism 11 is arranged at the other end of the main power output mechanism 9; the hatch 3 is elastically connected to the conveying mechanism 11; the tooth grinding box 10 is placed on a conveying table of the conveying mechanism 11, the stepping speed reducing mechanism 12, the main controller 13, the stepping motor controller 14 and the direct-current power supply 15 are installed above the bottom plate 8, the upper side of the bottom plate 8 is connected with the bottom of the shell 2, all mechanisms are sealed in a cavity of the shell, a closed cavity is arranged in the tooth grinding box 10, and meanwhile, a grinding head is arranged in the tooth grinding box and is responsible for grinding teeth and is a disposable consumable. The conveying mechanism 11 is responsible for the entrance and exit of the tooth grinding box 10 from the hatch; the main power output mechanism 9 is responsible for providing the pressure and the rotating torque required by the grinding for the tooth grinding box 10; meanwhile, the tooth grinding box is a disposable consumable, and is placed on a fixed base 11-2 of the conveying mechanism 11 during working, grinding heads are arranged at two ends of the tooth grinding box, one is movable and the other is static, a window is formed in the side face of the tooth grinding box, so that teeth can be conveniently placed in and tooth powder can be conveniently poured out, and the window is provided with a sealing structure, so that dust cannot leak out when teeth are ground.

A positioning clamping groove is arranged in a fixed base of the conveying device, and a grinding head at one end of the tooth grinding box can be clamped under the working state to keep the tooth grinding box in a non-rotatable state.

How the controller is connected with each device to acquire data and transmit the data in this embodiment is a conventional technology in the art, and therefore, will not be described in detail.

The stepping speed reducing mechanism 12 is formed by a stepping motor with a speed reducing ratio 20: 1 worm gear and worm reducer, which is responsible for providing a main power source. The main controller 13 is responsible for controlling the operation of the instrument and receiving and processing of each signal and data, and is provided with a network interface and an online interface, and can be communicated with peripheral equipment or a computer, and meanwhile, a stepping motor controller 16 is additionally arranged to be responsible for controlling and optimizing the operation parameters of the main power stepping motor, and a direct current power supply 15 provides a required direct current power supply for the tooth grinder and has grounding protection.

The utility model discloses at the during operation: clicking a 'warehouse-out' button on the operation screen 1, and extending the hatch cover 3 out of the hatch door along with the placing platform of the conveying mechanism 11; scanning an identification code on a tooth grinding box 10 provided with teeth against a scanner 4, putting the tooth grinding box on a conveying platform, clicking a 'bin entering' button on an operation screen 1, sending the tooth grinding box 10 into an instrument cabin, clamping a flat square of a static grinding head at one end into a base clamping groove of a conveying mechanism 11, closing a cabin door by a cabin cover 3, clicking a 'starting' button on the operation screen 1, driving a dynamic grinding head on the grinding box 10 to extrude and rotate and cut and grind teeth according to a set program by a stepping speed reduction mechanism 12 through an active power output mechanism 9 until the teeth are ground, returning the dynamic grinding head to one end of the grinding box along with an output shaft on the active power output mechanism 9 after grinding is finished, separating the grinding box from the output shaft, clicking a 'bin exiting' button on the operation screen 1, sending the tooth grinding box 10 out of the conveying mechanism 11, take off tooth crushing box 10, open the sealed lid of its side, pour the dentifrice to appointed test tube or container in, consequently have through the above-mentioned structural arrangement: the integral operation is simple, the labor cost is reduced, the working efficiency is high, and the sealing effect is achieved during machining, so that the noise is reduced in sequence, and the cost is low.

Meanwhile, the utility model adopts two grinding heads which are movable and static, the teeth are placed between the two grinding heads, and the teeth are twisted, sheared and ground to be in a powder state by applying certain pressure and rotating the grinding heads and utilizing the comprehensive action of extrusion force, friction force and shearing force; the whole crushing is more convenient; meanwhile, the crushing process is carried out in a closed cavity, so that the environment is not polluted and has no noise, in addition, the utility model adopts a low-speed spinning grinding mode, the temperature rise in the crushing process is not large, the noise is low, the crushing time is short, the operation is simple and convenient, and the data can be interconnected and traced; meanwhile, the dust can be prevented from polluting the environment, and the cross contamination can be avoided. Therefore, the utility model has higher practical value.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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

1. The utility model provides a tooth grinding instrument, includes shell (2) and bottom plate (8) that each other approximately, its characterized in that is equipped with following equipment in the cavity that shell (2) and bottom plate (8) constitute:

a main controller (13) for controlling the operation of each electrical component and the receiving and processing of each signal and data;

a disposable tooth grinding box (10), a sealing chamber (10-6) is arranged in the disposable tooth grinding box (10), and a movable grinding head (10-3) for grinding and grinding teeth is arranged in the sealing chamber (10-6);

a main power output mechanism (9) which is provided with a power output shaft (9-3) which can stretch out and draw back, and the power output shaft (9-3) can be connected with a movable grinding head (10-3) of the disposable tooth grinding box (10) after extending out and drive the movable grinding head (10-3) to work;

a conveying mechanism (11) for conveying the disposable tooth grinding box (10) to the right front of the power output shaft (9-3);

a step-by-step speed reduction mechanism (12) for connecting the main power output mechanism (9);

a direct current power supply (15) electrically connected with the stepping speed reducing mechanism (12), the main power output mechanism (9) and the conveying mechanism (11);

the main controller (13) is electrically connected with the stepping speed reducing mechanism (12) and the conveying mechanism (11).

2. A tooth comminution instrument as claimed in claim 1, in which: the disposable tooth grinding box (10) comprises a box body (10-1), a fixed grinding head (10-2) and a movable grinding head (10-3), wherein the fixed grinding head (10-2) and the movable grinding head (10-3) are respectively arranged at two ends of the box body (10-1), the fixed grinding head (10-2) and the movable grinding head (10-3) are matched with the box body (10-1) to form a sealing chamber (10-6) inside the box body (10-1), sealing grooves (10-7) are respectively arranged on the fixed grinding head (10-2) and the movable grinding head (10-3), sealing rings (10-5) are arranged in the sealing grooves (10-7), a window (10-8) used for placing teeth into the sealing chamber (10-6) is arranged at the front end of the box body (10-1), and a plugging piece (10-4) is arranged on the window (10-8).

3. A tooth comminution instrument as claimed in claim 2, in which: a boss (10-11) for determining the positioning direction of the fixed grinding head (10-2) is arranged at one side of the fixed grinding head (10-2), one side of the movable grinding head (10-3) is provided with an inner hexagonal positioning clamping groove (10-9), one end of the power output shaft (9-3) is provided with a hexagonal block (9-14) matched with the inner hexagonal positioning clamping groove (10-9), the other side of the movable grinding head (10-3) and the other side of the fixed grinding head (10-2) are both provided with protruding sharp teeth (10-10) positioned in the sealed chamber (10-6), the movable grinding head (10-3) can reciprocate and rotate in the box body (10-1), so that the protruding sharp teeth (10-10) on the movable grinding head (10-3) and the protruding sharp teeth (10-10) on the fixed grinding head (10-2) are engaged with each other.

4. A tooth comminution instrument as claimed in claim 1, in which: the front end of the shell (2) is provided with an operation screen (1) used for being responsible for operation sending of instructions, setting, displaying and inquiring of related data and a scanner (4) used for being responsible for data identification scanning of the sample tooth grinding box, the side edge of the shell (2) is provided with a heat dissipation device (6) used for reducing the temperature in the grinding instrument and adsorbing dust in the grinding instrument and a USB interface (5) used for copying data, the operation screen (1), the USB interface (5) and the scanner (4) are electrically connected with a main controller (13), the front end of the shell (2) is provided with an access hatch (2-1), and a conveying mechanism (11) is elastically connected with a hatch cover (3) used for closing the access hatch (2-1).

5. A tooth comminution instrument as claimed in claim 4, in which: a shock absorption foot pad (7) is arranged below the bottom plate (8).

6. A tooth comminution instrument as claimed in claim 4, in which: the scanner (4) is installed in the upper right scanning window at the front end of the shell (2), and the USB interface (5) is installed at the front end of the right side of the shell (2).

7. A tooth comminution instrument as claimed in claim 5, in which: the shock absorption foot pads (7) are arranged at the positions of four corner ends below the bottom plate (8) and are 4 in number.

8. A tooth comminution instrument as claimed in claim 3, in which: the conveying mechanism (11) is installed at the right end of the main power output mechanism (9), the conveying mechanism (11) comprises a screw rod stepping motor (14), a linear guide rail (11-1), a fixed base (11-2) and a conveying table (11-5), the output of the screw rod stepping motor (14) is connected with a screw rod (14-1), a screw rod sliding block (14-2) is arranged on the screw rod (14-1), the conveying table (11-5) is connected onto a linear guide bar (11-6) in sliding connection with the linear guide rail (11-1), the other end of the linear guide bar (11-6) penetrates through the fixed base (11-2) and then is connected onto the screw rod sliding block (14-2), and the screw rod stepping motor (14) is fixed on the side edge of the fixed base (11-2), the tooth grinding box is characterized in that the box body (10-1) is clamped in the fixed base (11-2) through a boss (10-11), a positioning pin (11-3) used for positioning the tooth grinding box is arranged in the conveying table (11-5), and a first positioning clamping groove (11-4) which is matched with the boss (10-11) and can clamp the fixed grinding head (10-2) in a working state is arranged on the side edge in the fixed base (11-2) so that the fixed grinding head (10-2) can be kept in a non-rotatable state.

9. A tooth comminution instrument as claimed in claim 3, in which: the main power output mechanism (9) comprises a mounting connecting plate (9-1) and a body (9-2) serving as a framework, the power output shaft (9-3) penetrates through the mounting connecting plate (9-1) and the body (9-2), the mounting connecting plate (9-1) is mounted on a stepping speed reducing mechanism (12), a transition shaft (9-4) which is sleeved in an output main shaft of the stepping speed reducing mechanism (12) and is connected with the output main shaft through a key to transmit power is arranged on the left side of the power output shaft (9-3), the power output shaft (9-3) and the transition shaft (9-4) can axially slide and can transmit torque, a plane bearing (9-5) is arranged in the mounting connecting plate (9-1), and a pressure adjusting seat body (9-8) positioned in the body (9-2) is arranged on the right side of the plane bearing (9-5), the pressure adjusting base body (9-8) is used for bearing axial force and can rotate along the circumferential direction along with the plane bearing (9-5), a pressure adjusting screw (9-6), a pressure spring (9-7) and a spring column (9-9) are sequentially installed in the pressure adjusting base body (9-8) from left to right, the middle part of the power output shaft (9-3) is of a screw rod structure and is connected with a nut (9-10), the nut (9-10) is sleeved in a friction resistance sleeve (9-11), a radial fit gap is arranged between the friction resistance sleeve (9-11) and the nut (9-10), the friction resistance sleeve (9-11) is fixed in the body (9-2) through a screw, and the nut (9-10) transmits spring pressure through the spring column (9-9), tightly attached to the end faces of the frictional resistance sleeves (9-11).

10. A tooth comminution instrument as claimed in claim 9, in which: the left end of the screw nut (9-10) and the right end of the pressure adjusting seat body (9-8) are provided with a clearance of 1mm to ensure that the screw nut (9-10) has a movable space when being subjected to axial force, the right end of the body (9-2) is provided with a sheath (9-12) positioned outside the power output shaft (9-3), and the left end of the screw rod part of the power output shaft (9-3) is provided with a stroke limiting sleeve (9-13) used for adjusting and limiting the limit position of the power output shaft (9-3) extending to the right end.