CN217142343U

CN217142343U - High-precision high-rotating-speed electric spindle

Info

Publication number: CN217142343U
Application number: CN202220530668.7U
Authority: CN
Inventors: 陆力伟; 胡静芳; 顾培坤
Original assignee: Wuxi Siming Machinery Manufacturing Co ltd
Current assignee: Wuxi Siming Machinery Manufacturing Co ltd
Priority date: 2022-03-12
Filing date: 2022-03-12
Publication date: 2022-08-09
Anticipated expiration: 2032-03-12

Abstract

The utility model discloses a high rotational speed electricity main shaft of high accuracy, which comprises a housin, the casing center is equipped with the main shaft, and the main shaft end is equipped with axle rear end, main shaft front end outer lane is equipped with first filter screen with the connecting portion of casing, the axle rear end outer lane of main shaft is equipped with the second filter screen with the connecting portion of casing. When the utility model is used, the first filter screen and the second filter screen are respectively arranged at the front end and the rear end of the main shaft, so that dust can be efficiently prevented from entering the bearing, the main shaft is ensured to rotate stably, the loss of the main shaft is reduced, and the service life of the main shaft is prolonged; a connecting cover and a fan are arranged at the rear end of the shaft, and the fan is started to enable airflow to enter from the air inlet and be discharged from the air holes, so that the heat of the main shaft is dissipated, and the service life of the main shaft is prolonged; and a cooling wall is arranged on the outer wall of the shell, and cooling liquid is injected into the shell to perform heat dissipation treatment on the shell and the main shaft in the shell, so that the service life of the main shaft is prolonged.

Description

High-precision high-rotating-speed electric spindle

Technical Field

The utility model relates to an electricity main shaft technical field, concretely relates to high rotational speed electricity main shaft of high accuracy.

Background

The electric spindle is a new technology which integrates a machine tool spindle and a spindle motor into a whole and appears in the field of numerical control machines. The transmission structure form of the spindle motor and the machine tool spindle which are combined into a whole enables the spindle part to be relatively independent from a transmission system and an integral structure of the machine tool, so that the spindle motor can be made into a spindle unit which is commonly called as an electric spindle and has the characteristics of high rotating speed, high precision and low noise.

Chinese patent discloses a high-precision high-rotating-speed electric main shaft (No. CN205684726U) with a sealing ring, and the sealing ring is arranged between a front locking nut and a front gland in the patent technology, so that dust can be efficiently prevented from entering a front bearing and a rear bearing, the high precision of the front bearing and the rear bearing is ensured, and the requirement that the main shaft reaches 24000r/min is met; the main shaft is provided with water cooling, water is fed from a water inlet hole at the rear end, and the water is cooled by a cooling water tank arranged on the outer surface of the inner sleeve, so that efficient cooling is realized.

However, the rotating shaft of the electric spindle is easily stained with dirt or dust, which causes the spindle to be unbalanced in rotation, thereby increasing the wear of the spindle and shortening the life of the spindle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects in the prior art, providing a high-precision high-rotating-speed electric main shaft, which can efficiently prevent dust from entering a bearing by arranging a first filter screen and a second filter screen at the front end and the rear end of the main shaft respectively, ensure the stable rotation of the main shaft, reduce the loss of the main shaft and prolong the service life of the main shaft; a connecting cover and a fan are arranged at the rear end of the shaft, and the fan is started to enable airflow to enter from the air inlet and be discharged from the air holes, so that the heat of the main shaft is dissipated, and the service life of the main shaft is prolonged; and a cooling wall is arranged on the outer wall of the shell, and cooling liquid is injected into the shell to perform heat dissipation treatment on the shell and the main shaft in the shell, so that the service life of the main shaft is prolonged.

According to the technical scheme provided by the utility model, a high rotational speed electricity main shaft of high accuracy, which comprises a housin, the casing center is equipped with the main shaft, and the main shaft end is equipped with axle rear end, main shaft front end outer lane is equipped with first filter screen with the connecting portion of casing, the axle rear end outer lane of main shaft is equipped with the second filter screen with the connecting portion of casing.

Preferably, the periphery of the first filter screen is fixedly connected with a mounting ring, and the mounting ring is fixedly connected with the shell.

Preferably, a bearing is arranged in the first filter screen and fixedly connected with the main shaft.

Preferably, the connection cover is installed at the rear end of the shell, the connection cover is fixedly connected to the mounting frame, and a fan is arranged in the mounting frame.

Preferably, the connecting cover is provided with an air inlet, a plurality of air holes are formed around the air inlet, a third filter screen is arranged in the air inlet, and a fourth filter screen is arranged in the air holes.

Preferably, the outer wall of the shell is fixedly connected with a cooling wall, and a spiral pipe is arranged in the cooling wall.

Preferably, a water inlet pipe is arranged at one end of the spiral pipe, a sealing plug is arranged in the water inlet pipe, a drain pipe is arranged at the other end of the spiral pipe, and a check valve is arranged in the drain pipe.

The utility model discloses a technological effect and advantage:

1. the first filter screen and the second filter screen are respectively arranged at the front end and the rear end of the main shaft, so that dust can be efficiently prevented from entering a bearing, the main shaft is ensured to rotate stably, the loss of the main shaft is reduced, and the service life of the main shaft is prolonged;

2. a connecting cover and a fan are arranged at the rear end of the shaft, and the fan is started to enable airflow to enter from the air inlet and be discharged from the air holes, so that the heat of the main shaft is dissipated, and the service life of the main shaft is prolonged;

3. and a cooling wall is arranged on the outer wall of the shell, and cooling liquid is injected into the shell to perform heat dissipation treatment on the shell and the main shaft in the shell, so that the service life of the main shaft is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of example 1 provided in an embodiment of the present application;

FIG. 2 is a connection diagram of a connection cover and a housing in example 1 provided by an embodiment of the present application;

FIG. 3 is an exploded view of example 1 provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of example 2 provided in the embodiments of the present application;

fig. 5 is a schematic diagram of an internal structure of embodiment 2 provided in the present application.

In the figure: 1. a housing; 2. a mounting ring; 3. a bearing; 4. a main shaft; 5. a connecting cover; 6. air holes are formed; 7. a fourth filter screen; 8. an air inlet; 9. a third filter screen; 10. a fan; 11. a mounting frame; 12. a shaft rear end; 13. a stave; 14. a drain pipe; 15. a water inlet pipe; 16. a sealing plug; 17. a one-way valve; 18. a first filter screen; 19. a second filter screen; 20. a spiral tube.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 1 to 3, the present embodiment provides a high-precision high-rotation-speed electric spindle, which includes a housing 1, a spindle 4 is disposed in the center of the housing 1, a rear end 12 is disposed at a distal end of the spindle 4, a first filter 18 is disposed at a connection portion between an outer ring of a front end of the spindle 4 and the housing 1, and a second filter 19 is disposed at a connection portion between an outer ring of the rear end 12 of the spindle 4 and the housing 1.

The periphery of the first filter screen 18 is fixedly connected with a mounting ring 2, and the mounting ring 2 is fixedly connected with the shell 1. And a bearing 3 is arranged in the first filter screen 18, and the bearing 3 is fixedly connected with the main shaft 4.

The connection cover 5 is installed at the rear end of the shell 1, the connection cover 5 is fixedly connected to the mounting frame 11, and a fan (10) is arranged in the mounting frame 11. The air inlet 8 is arranged on the connecting cover 5, the plurality of air holes 6 are formed in the periphery of the air inlet 8, a third filter screen 9 is arranged in the air inlet 8, and a fourth filter screen 7 is arranged in the air holes 6.

The utility model discloses a theory of operation is:

the first filter screen 18 and the second filter screen 19 are respectively arranged at the front end and the rear end 12 of the main shaft 4, so that dust can be efficiently prevented from entering the bearing 4, the main shaft 4 is ensured to rotate stably, the loss of the main shaft 4 is reduced, and the service life of the main shaft 4 is prolonged;

a connecting cover 5 and a fan 10 are arranged at the rear end 12 of the shaft, the fan 10 is started, airflow enters from an air inlet 8 and is discharged from an air hole 6, heat dissipation is carried out on the main shaft 4, and the service life of the main shaft 4 is prolonged.

Example 2

Referring to fig. 4 to 5, in the present embodiment, a cooling wall 13 is fixedly connected to an outer wall of the casing 1, a spiral pipe 20 is disposed in the cooling wall 13, a water inlet pipe 15 is disposed at one end of the spiral pipe 20, a sealing plug 16 is disposed on the water inlet pipe 15, a water discharge pipe 14 is disposed at the other end of the spiral pipe 20, and a check valve 17 is mounted on the water discharge pipe 14.

A cooling wall 13 is arranged on the outer wall of the shell 1, and cooling liquid is injected into the shell 1 and the main shaft 4 in the shell to carry out heat dissipation treatment, so that the service life of the main shaft is prolonged.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present disclosure. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims

1. The utility model provides a high rotational speed electricity main shaft of high accuracy, includes casing (1), its characterized in that, casing (1) center is equipped with main shaft (4), and main shaft (4) end is equipped with axle rear end (12), main shaft (4) front end outer lane is equipped with first filter screen (18) with the connecting portion of casing (1), axle rear end (12) outer lane of main shaft (4) and the connecting portion of casing (1) are equipped with second filter screen (19).

2. A high-precision high-speed electric spindle according to claim 1, characterized in that the periphery of the first filter (18) is fixedly connected with a mounting ring (2), and the mounting ring (2) is fixedly connected with the housing (1).

3. A high-precision high-speed electric spindle according to claim 1, wherein a bearing (3) is arranged in the first filter (18), and the bearing (3) is fixedly connected with the spindle (4).

4. A high-precision high-speed electric spindle according to claim 1, characterized in that a connecting cover (5) is installed at the rear end of the housing (1), the connecting cover (5) is fixedly connected to a mounting frame (11), and a fan (10) is installed in the mounting frame (11).

5. The high-precision high-rotation-speed electric spindle according to claim 4, wherein an air inlet (8) is formed in the connecting cover (5), a plurality of air holes (6) are formed around the air inlet (8), a third filter screen (9) is arranged in the air inlet (8), and a fourth filter screen (7) is arranged in the air holes (6).

6. A high-precision high-speed electric spindle according to claim 1, characterized in that a cooling wall (13) is fixedly connected to the outer wall of the housing (1), and a spiral pipe (20) is arranged in the cooling wall (13).

7. A high-precision high-rotation-speed electric spindle as claimed in claim 6, wherein a water inlet pipe (15) is arranged at one end of the spiral pipe (20), a sealing plug (16) is arranged in the water inlet pipe (15), a water outlet pipe (14) is arranged at the other end of the spiral pipe (20), and a one-way valve (17) is arranged in the water outlet pipe (14).