CN213997814U

CN213997814U - Air-floatation high-speed electric spindle core

Info

Publication number: CN213997814U
Application number: CN202023270105.9U
Authority: CN
Inventors: 黄三益
Original assignee: Jiangsu Junying Precision Machinery Co ltd
Current assignee: Jiangsu Junying Precision Machinery Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-20
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an air-float high-speed electric main shaft core, which comprises a shaft core, wherein a pull rod is arranged in the shaft core, the outer side wall of the pull rod is sleeved with a connecting port, the lower surface of the connecting port is laminated with a gasket, the lower surface of the gasket is laminated with a static ring, the lower surface of the static ring is in threaded connection with a movable ring, the inner side wall of the movable ring is in threaded connection with a movable ring sealing ring, the lower surface of the movable ring is in threaded connection with a fixed plate, the outer side wall of the fixed plate is welded with a second spring, the shaft core is connected outside the pull rod through the connecting port, primary sealing is carried out below the connecting port through the combination of the gasket, the static ring and the movable ring, secondary sealing and certain shock absorption are carried out through the combination of the movable ring sealing ring, the fixed plate and the second spring, thereby forming end face sealing, and realizing the maximized use of gas introduction by enhancing the sealing effect, the use efficiency is improved.

Description

Air-floatation high-speed electric spindle core

Technical Field

The utility model relates to the technical field of machining, specifically be an air supporting high speed electric main shaft axle core.

Background

The air-floating high-speed electric main shaft is an electric main shaft for performing precision machining by utilizing an air-floating principle, a shaft core assembly is a key component of the high-speed air-floating electric main shaft and is used for clamping and fixing a cutter and driving the cutter to rotate at a high speed, at present, the shaft core assembly of the electric main shaft generally comprises a shaft core and a chuck which is arranged in a through hole of the shaft core and can slide along the axial direction of the shaft core, a pull rod is arranged in the through hole of the shaft core, the lower end part of the pull rod is fixedly connected with the chuck, and the bottom end part of the through hole of the shaft core is arranged into a conical part;

the invention is disclosed in China: (publication No. CN 203030908U), disclose a shaft core used for high-accuracy high-speed air supporting electric main shaft, the utility model has the advantages that the shaft core assembly is convenient for loading and unloading the cutter with the help of external force, the shaft is provided with a plastic sliding sleeve, the sliding friction coefficient is small, and the service life is long; the matching precision of the shaft core and the shaft lever is high due to the plastic sliding sleeve, and the reciprocating position of the shaft lever is accurate; the shaft core assembly is matched with a motor stator, and can realize the rotation at 0-100000 rpm; the shaft core is provided with a front flying disc, so that the high-speed stable rotation can be realized, and a larger axial force can be borne; the high-speed dynamic performance of axle core is good, and the precision is good, advantages such as long service life can extensively be used for the axle core of various air supporting electricity main shafts, however the device still has certain problem:

firstly, the air-floating high-speed motorized spindle is a motorized spindle for precision machining by utilizing an air-floating principle, and when the existing air-floating high-speed motorized spindle is used, certain gas is generated to leak out, so that the gas cannot be completely utilized, and the service efficiency of the device is reduced;

secondly, in current air supporting high speed electric main shaft, most is provided with the shock attenuation of vertical direction, but because the body of rod is circular motion to only set up the shock attenuation of vertical direction, can not solve the shock attenuation to the at utmost, for this reason, provide an air supporting high speed electric main shaft axle core.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air supporting high speed electric main shaft axle core to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an air supporting high-speed electricity main shaft axle core, includes the axle core, the internally mounted of axle core has the pull rod, the lateral wall cover of pull rod is equipped with connection port, connection port's lower surface laminating has the gasket, the lower surface laminating of gasket has quiet ring, the lower surface threaded connection of quiet ring has the rotating ring, the inside wall threaded connection of rotating ring has the rotating ring sealing washer, the lower surface threaded connection of rotating ring has the stationary blade, the lateral wall welding of stationary blade has the second spring, the lower surface of stationary blade and the both sides threaded connection who is located the second spring have the connecting seat, the lower surface laminating of connecting seat has the spacing ring, the bilateral symmetry welding of axle core has two copper squirrel cages, two the end links have all been welded to the both sides of copper squirrel cage.

Preferably: the inside wall of axle core just is located the below symmetrical welding of spacing ring and has two plastics sliding sleeves.

Preferably: and the lower surfaces of the two plastic sliding sleeves are welded with guide sleeves.

Preferably: two locking nuts are symmetrically welded on the lower surface of the guide sleeve.

Preferably: and the lower surfaces of the two locking nuts are welded with first springs.

Preferably: six elastic tube bodies, six elastic tube bodies are uniformly welded on the inner side wall of the shaft core and below the two first springs, two connecting plates are symmetrically welded on one side, away from the shaft core, of each elastic tube body, two tubes are welded on one side, adjacent to each connecting plate, of each connecting plate, and third springs are welded on the outer side wall of each tube body.

Preferably: the lower surface welding of axle core has the flywheel, the lower surface welding of flywheel has the chuck.

Preferably: the lower surface of the pull rod is welded with a cutter.

Compared with the prior art, the beneficial effects of the utility model are that:

the shaft core is connected outside the pull rod through a connecting port, primary sealing is performed below the connecting port through combination of a gasket, a static ring and a movable ring, secondary sealing and shock absorption to a certain degree are performed through combination of a movable ring sealing ring, a fixed plate and a second spring, so that end face sealing is formed, maximum use of introduced gas is achieved by means of enhancing a sealing effect, and use efficiency is improved;

two, set up first spring and carry out the shock attenuation of vertical direction, in first spring below, set up the third spring, carry out the shock attenuation of horizontal direction to the third spring part buffering that receives the impact through the elasticity body that sets up, thereby with the help of diversified shock attenuation, reach the at utmost shock attenuation, improve the stability when using.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure A of the present invention;

FIG. 3 is a schematic view of the structure B of the present invention;

fig. 4 is a schematic view of the structure of the guide sleeve of the present invention.

In the figure: 1. a shaft core; 2. a pull rod; 3. an end ring; 4. a copper mouse cage; 5. a limiting ring; 6. a plastic sliding sleeve; 7. a guide sleeve; 8. locking the nut; 9. a first spring; 10. a flywheel; 11. a chuck; 12. a cutter; 13. a connection port; 14. a gasket; 15. a stationary ring; 16. a moving ring; 17. a moving ring sealing ring; 18. a fixing sheet; 19. a second spring; 20. a connecting seat; 21. an elastic tube body; 22. a connecting plate; 23. a pipe body; 24. and a third spring.

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 work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an air supporting high-speed electricity main shaft axle core, including axle core 1, the internally mounted of axle core 1 has pull rod 2, the lateral wall cover of pull rod 2 is equipped with connection port 13, connection port 13's lower surface laminating has gasket 14, gasket 14's lower surface laminating has quiet ring 15, the lower surface threaded connection of quiet ring 15 has rotating ring 16, the inside wall threaded connection of rotating ring 16 has rotating ring sealing washer 17, the lower surface threaded connection of rotating ring 16 has stationary blade 18, the lateral wall welding of stationary blade 18 has second spring 19, the lower surface of stationary blade 18 and the both sides threaded connection who is located second spring 19 have connecting seat 20, the lower surface laminating of connecting seat 20 has spacing ring 5, the bilateral symmetry welding of axle core 1 has two copper squirrel cages 4, end ring 3 has all been welded to the both sides of two copper squirrel cages 4.

In this embodiment, specifically: the inside wall of axle core 1 just is located the below symmetrical welding of spacing ring 5 and has two plastic sliding sleeve 6, cooperates with pull rod 2 through setting up plastic sliding sleeve 6, reduces the friction.

In this embodiment, specifically: the lower surface welding of two plastic sliding sleeve 6 has uide bushing 7, plays certain supporting role through setting up uide bushing 7, also has certain direction and fixed action simultaneously to inside pull rod 2.

In this embodiment, specifically: two locking nuts 8 are symmetrically welded on the lower surface of the guide sleeve 7, and the fastening of the inner part is ensured by arranging the locking nuts 8, so that the stability during the whole operation is ensured.

In this embodiment, specifically: the lower surface of two lock nuts 8 all welds has first spring 9, through setting up first spring 9, utilizes the elastic potential energy of first spring 9, can slow down the impact of vertical direction to the vibrational force has been slowed down to a certain extent.

In this embodiment, specifically: the inside wall of axle core 1 and the below that is located two first springs 9 evenly welds six elasticity bodys 21, the one side symmetric welding that axle core 1 was kept away from to six elasticity bodys 21 has two connecting plates 22, body 23 has all been welded to the adjacent one side of two connecting plates 22, third spring 24 has all been welded to the lateral wall of two bodys 23, through setting up third spring 24, can slow down lateral impact, thereby certain vibration that slows down, borrow again by the elasticity body 21 of installing in axle core 1, slow down the impact that third spring 24 received, further strengthen the shock attenuation effect.

In this embodiment, specifically: the lower surface welding of axle core 1 has flywheel 10, and the lower surface welding of flywheel 10 has chuck 11, through setting up flywheel 10, utilizes great moment of inertia, stores the energy when pull rod 2 rotates to when pull rod 2 rotational speed reduces, flywheel 10 kinetic energy reduces, releases the energy, reduces the speed fluctuation of operation process, through setting up chuck 11, fixes cutter 12.

In this embodiment, specifically: the cutter 12 is welded to the lower surface of the pull rod 2, and the object is cut by the cutter 12.

Working principle or structural principle: when in use, the copper cage 4 is arranged in the shaft core 1, the copper cage 4 is used as a rotor to inhibit the stator current, the end rings 3 at two sides of the copper cage 4 are closed, the pull rod 2 forms an end face seal together by a first seal which is formed by combining three components of a gasket 14, a static ring 15 and a moving ring 16 and a second seal which is formed by combining a moving ring seal ring 17, a fixed sheet 18 and a second spring 19 and is connected with the connecting port 13 through a sleeve, the friction is reduced on the pull rod 2 through the plastic sliding sleeve 6, the guide sleeve 7 is matched with the pull rod 2 to guide and fix the pull rod 2 to a certain extent, the locking nut 8 is arranged to ensure the internal fixation, so that the running stability is realized, the impact in the vertical direction is buffered through the first spring 9 to absorb the shock, but the circular motion is carried out under the running of the pull rod 2, thereby through third spring 24, can slow down transverse impact, thereby certain vibration that slows down, borrow by installing the elastic tube body 21 in axle core 1, slow down the impact that third spring 24 received, further strengthen the shock attenuation effect, the flywheel 10 that sets up can carry out the ability storage, thereby when 2 rotational speeds of pull rod reduce, flywheel 10 kinetic energy reduces, release the energy, reduce the speed fluctuation of operation process, chuck 11 can be fixed cutter 12, and cutter 12 can cut article.

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 an air supporting high speed electricity main shaft axle core, includes axle core (1), its characterized in that: the utility model discloses a bearing assembly of a motor vehicle, including axle core (1), the internally mounted of axle core (1) has pull rod (2), the lateral wall cover of pull rod (2) is equipped with connection port (13), the lower surface laminating of connection port (13) has gasket (14), the lower surface laminating of gasket (14) has quiet ring (15), the lower surface threaded connection of quiet ring (15) has rotating ring (16), the inside wall threaded connection of rotating ring (16) has rotating ring sealing washer (17), the lower surface threaded connection of rotating ring (16) has stationary blade (18), the lateral wall welding of stationary blade (18) has second spring (19), the lower surface of stationary blade (18) just is located the both sides threaded connection of second spring (19) has connecting seat (20), the lower surface laminating of connecting seat (20) has spacing ring (5), the bilateral symmetry welding of axle core (1) has two copper squirrel cages (4), end rings (3) are welded on two sides of the two copper squirrel cages (4).

2. The air-bearing high-speed motorized spindle shaft of claim 1, further comprising: the inner side wall of the shaft core (1) is symmetrically welded with two plastic sliding sleeves (6) below the limiting ring (5).

3. The air-bearing high-speed motorized spindle shaft of claim 2, further comprising: the lower surface of the two plastic sliding sleeves (6) is welded with a guide sleeve (7).

4. The air-bearing high-speed motorized spindle shaft of claim 3, wherein: two locking nuts (8) are symmetrically welded on the lower surface of the guide sleeve (7).

5. The air-bearing high-speed motorized spindle shaft of claim 4, wherein: and the lower surfaces of the two locking nuts (8) are welded with first springs (9).

6. The air-bearing high-speed motorized spindle shaft of claim 5, wherein: the utility model discloses a spring, including axle core (1), the inside wall of axle core (1) and the below that is located two first springs (9) evenly weld there are six elasticity bodys (21), six the one side symmetry welding that axle core (1) was kept away from in elasticity body (21) has two connecting plates (22), two body (23), two all have been welded to the adjacent one side of connecting plate (22) the third spring (24) are all welded to the lateral wall of body (23).

7. The air-bearing high-speed motorized spindle shaft of claim 1, further comprising: the lower surface welding of axle core (1) has flywheel (10), the lower surface welding of flywheel (10) has chuck (11).

8. The air-bearing high-speed motorized spindle shaft of claim 1, further comprising: the lower surface of the pull rod (2) is welded with a cutter (12).