CN220608437U

CN220608437U - Denture engraving device

Info

Publication number: CN220608437U
Application number: CN202322009451.9U
Authority: CN
Inventors: 赖勋旺
Original assignee: Shenzhen Dayue Dental Technology Development Co ltd
Current assignee: Shenzhen Dayue Dental Technology Development Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-03-19
Anticipated expiration: 2033-07-27

Abstract

The utility model relates to the technical field of denture engraving tools, and particularly discloses a denture engraving device which comprises a handle shell, a motor, a drill bit and an impeller, wherein the motor is fixedly connected to the rear end in the handle shell, the motor is connected with an external power supply control device, a main shaft of the motor extends forwards and is coaxially connected with a connecting shaft, the front end of the connecting shaft is coaxially and detachably connected with the drill bit, the front end of the drill bit extends out of the handle shell, the impeller is fixedly sleeved on the connecting shaft, a plurality of air inlet holes are formed in the handle shell between the motor and the impeller in a penetrating way, and a plurality of air outlet holes with the axial direction being the front-back direction are formed in the front end of the handle shell.

Description

Denture engraving device

Technical Field

The utility model relates to the technical field of denture engraving tools, in particular to a denture engraving device.

Background

The existing false tooth engraving tools can be divided into automatic control and manual control, the automatic control engraving tools generally adopt five-axis engraving machines, and the manual control engraving tools are most widely used by electric engraving pens. The electric carving pen is also called a dental engine together with a control box, when the electric carving pen is used, a worker holds the carving pen by hand, the front end of the carving pen is a drill bit, the rear end of the carving pen is connected with the control box through a circuit, and the start and stop of the drill bit are controlled through a pedal switch connected with the control box. At present, zirconia dental abutments are popular, a large amount of dust is generated when the zirconia dental abutments are engraved, and the sight line is fuzzy due to excessive dust, so that the engraving work is required to be interrupted frequently to remove the dust in the engraving process, which affects the engraving efficiency.

Disclosure of Invention

To solve the problems mentioned in the background art, an object of the present utility model is to provide a denture engraving device.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the utility model provides a denture engraving device, includes handle shell, motor, drill bit and impeller, rear end rigid coupling in the handle shell has the motor, the motor is connected with outside power supply control device, the main shaft of motor extends forward and coaxial being connected with the connecting axle, the coaxial detachable of front end of connecting axle is connected with the drill bit, the front end of drill bit extends to outside the handle shell, the fixed cover of impeller is located on the connecting axle, in penetrating shaping has a plurality of fresh air inlet on the handle shell between motor and the impeller, the front end of handle shell is penetrating to be provided with a plurality of axial and is fore-and-aft direction's apopore.

Further, still include chuck and end cover, the chuck is cylindricality and coaxial with the connecting axle, the rear end detachable connection of chuck is on the connecting axle, first slot has been seted up to the front end of chuck, the rear end of drill bit is inserted and is located in the first slot, the anterior segment perisporium of chuck is the toper, a plurality of line type holes have been seted up to the anterior segment perisporium of chuck corresponding the second slot, a plurality of the line type hole separates the anterior segment of chuck into a plurality of independent clamping pieces, the end cover is rear end open-ended barrel, the front end opening of handle shell, the rear end threaded connection of end cover is at the front end of drill bit casing, the front end shaping of end cover has the through-hole that supplies the chuck front end to pass, the air-out hole shaping is in the front end of end cover, the front end rigid coupling of end cover has the bearing, the inner circle of bearing will a plurality of the clamping pieces support tightly on the periphery wall of drill bit.

Further, the rear end of the clamping head is provided with a second slot, the front end of the connecting shaft is inserted into the second slot, the connecting shaft is locked in the second slot through a transverse bolt,

further, the novel bearing pressing device further comprises a pressing ring, wherein an embedded groove is formed in the inner end face of the end cover, the bearing is embedded in the embedded groove, the pressing ring is fixed on the inner end face of the end cover through a plurality of bolts, and the pressing ring presses the bearing in the embedded groove.

Further, the front end of the end cover is provided with a chamfer surface.

The beneficial effects of the utility model are as follows: through increasing the impeller on the connecting axle to set up fresh air inlet and fresh air outlet on the handle shell, drive the impeller rotation through the motor, when utilizing drill bit sculpture zirconia artificial tooth, can blow out the wind in the fresh air outlet, can in time blow away the dust, need not interrupt the sculpture again and clean the dust, can effectually improve sculpture efficiency.

Drawings

FIG. 1 is an isometric view of an embodiment of the present utility model;

FIG. 2 is an exploded view of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an embodiment of the present utility model;

fig. 4 is an enlarged view of a in fig. 3.

Description of the drawings: 1. the handle comprises a handle shell, 11, a flange, 12, an air inlet hole, 2, a motor, 21, a power supply line, 22, a connecting shaft, 3, a drill bit, 4, an impeller, 5, a sealing cover, 6, a clamping head, 61, a first slot, 62, a second slot, 63, a linear hole, 64, clamping pieces, 7, an end cover, 71, a through hole, 72, an air outlet hole, 73, a caulking groove, 8, a bearing, 9 and a compression ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1 to 4, a denture engraving apparatus comprises a handle housing 1, a motor 2, a drill 3 and an impeller 4, wherein the handle housing 1 is in a cylindrical shape with two open ends, a sealing cover 5 is connected at the rear end port of the handle housing 1 in a threaded manner, an inwardly extending flange 11 is arranged at the middle part in the handle housing 1, the motor 2 is cooperatively arranged in the handle housing 1 between the sealing cover 5 and the flange 11, the motor 2 is connected with an external power supply control device (not released in the drawing) through a power supply line 21, a main shaft of the motor 2 extends forwards and is coaxially connected with a connecting shaft 22, the front end of the connecting shaft 22 is coaxially and detachably connected with the drill 3, the front end of the drill 3 extends out of the handle housing 1, specifically, a chuck 6 is arranged at the front end in the handle housing 1, the chuck 6 is cylindrical and is coaxial with the connecting shaft 22, a second slot 62 is arranged at the rear end of the chuck 6, the front end of the connecting shaft 22 is inserted into the second slot 62, the connecting shaft 22 is locked in the second slot 62 through a transverse bolt, the front end of the clamping head 6 is provided with a first slot 61, the rear end of the drill bit 3 is inserted into the first slot 61, the peripheral wall of the front section of the clamping head 6 is conical, the peripheral wall of the front section of the clamping head 6 is provided with four linear holes 63 corresponding to the second slot 62, the front section of the clamping head 6 is divided into four independent clamping pieces 64 by the four linear holes 63, the front end of the handle shell 1 is in threaded connection with an end cover 7, the end cover 7 is in a cylinder shape, the front end of the end cover 7 is provided with a through hole 71 for the front end of the clamping head 6 to pass through, the front end of the end cover 7 is provided with four waist-shaped air outlet holes 72, the front end of the end cover 7 is fixedly connected with a bearing 8, the inner ring of the bearing 8 props the four clamping pieces 64 against the peripheral wall of the drill bit 3, the impeller 4 is fixedly sleeved on the front end of the connecting shaft 22, a plurality of air inlet holes 12 are formed on the handle shell 1 between the motor 2 and the impeller 4 in a penetrating way.

In actual operation, the motor 2 is driven to start and stop by the external power supply control device, the motor 2 can drive the impeller 4 and the drill bit 3 to rotate at a high speed when being started, the drill bit 3 can rotate to carve the zirconia false tooth, the impeller 4 can suck external air into the handle shell 1 through the air inlet hole 12 and discharge the air through the air outlet hole 72 to form an air flow capable of blowing dust, and when the drill bit 3 acts on the zirconia false tooth, the air flow blown out by the air outlet hole 72 can blow out dust, so that the aim of timely cleaning the dust is fulfilled, and therefore, carving is not required to be interrupted any more to clean the dust, and the carving efficiency can be effectively improved.

In this embodiment, still include clamping ring 9, the shaping has caulking groove 73 on the interior terminal surface of end cover 7, and bearing 8 is inlayed and is fixed in caulking groove 73, and clamping ring 9 passes through four bolts to be fixed on the interior terminal surface of end cover 7, and clamping ring 9 compresses tightly bearing 8 in caulking groove 73, reasonable in design is convenient for dismouting bearing 8.

In this embodiment, the front end of the end cover 7 is provided with a chamfer surface, and the front end of the end cover 7 is designed to be a chamfer surface, so that interference with the sight of operators during carving can be avoided.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a denture engraving device, includes handle shell (1), motor (2) and drill bit (3), rear end rigid coupling in handle shell (1) has motor (2), motor (2) are connected with outside power supply control device, the main shaft of motor (2) extends forward and coaxial being connected with connecting axle (22), the coaxial detachable drill bit (3) of front end of connecting axle (22), the front end of drill bit (3) extends to outside handle shell (1), a serial communication port, still includes impeller (4), on connecting axle (22) are located to impeller (4) fixed cover, in penetrating shaping has a plurality of fresh air inlet (12) on handle shell (1) between motor (2) and impeller (4), the front end of handle shell (1) is penetrating to be provided with a plurality of axial air outlet (72) of fore-and-aft direction.

2. The denture engraving device according to claim 1, further comprising a chuck (6) and an end cover (7), wherein the chuck (6) is cylindrical and coaxial with the connecting shaft (22), the rear end of the chuck (6) is detachably connected to the connecting shaft (22), the front end of the chuck (6) is provided with a first slot (61), the rear end of the drill bit (3) is inserted into the first slot (61), the peripheral wall of the front section of the chuck (6) is conical, the peripheral wall of the front section of the chuck (6) is provided with a plurality of linear holes (63) corresponding to the second slot (62), the front section of the chuck (6) is divided into a plurality of independent clamping pieces (64) by the linear holes (63), the end cover (7) is a cylinder with an open rear end, the front end of the handle housing (1) is open, the rear end of the end cover (7) is in threaded connection with the front end of the drill bit (3) housing, the front end of the end cover (7) is provided with a through hole (71) for the front end of the chuck (6) to penetrate through the front end of the air outlet (8), and the bearing (8) is fixedly connected with the front end (8) of the end cover (7).

3. The denture engraving device according to claim 2, wherein a second slot (62) is formed in the rear end of the collet (6), the front end of the connecting shaft (22) is inserted into the second slot (62), and the connecting shaft (22) is locked in the second slot (62) by a transverse bolt.

4. The denture engraving device according to claim 2, further comprising a pressing ring (9), wherein a caulking groove (73) is formed in the inner end surface of the end cover (7), the bearing (8) is caulked in the caulking groove (73), the pressing ring (9) is fixed on the inner end surface of the end cover (7) through a plurality of bolts, and the pressing ring (9) presses the bearing (8) in the caulking groove (73).

5. Denture engraving device according to claim 2, characterized in that the front end of said end cap (7) is provided with chamfer faces.