CN218656834U

CN218656834U - Numerical control main shaft

Info

Publication number: CN218656834U
Application number: CN202223291843.0U
Authority: CN
Inventors: 胡延新
Original assignee: Dongguan Hummingbird Precision Industry Co ltd
Current assignee: Dongguan Hummingbird Precision Industry Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-03-21
Anticipated expiration: 2032-12-08

Abstract

The utility model provides a numerical control main shaft, including the shell body, the inside of shell body is inlayed and is equipped with the stator, and the inside cooperation of stator is equipped with the rotor, and the pivot has been cup jointed to the inside fixed interlude of rotor, and the front end of shell body and the inside a plurality of bearings that all inlay of rear end are equipped with, and a plurality of bearings cup joint with the front end rear end of pivot respectively, and turbofan is still installed through two locking ring axle sleeves to the front end of pivot. The utility model discloses numerical control main shaft is than the main shaft that the tradition comprises shell body, axle core, end cover isotructure, this numerical control main shaft through add turbofan and with the outside transmission of pivot, when main shaft during operation, turbofan rotates along with the pivot, realizes the drawing liquid exhaust, makes then the main shaft need not additionally be equipped with pump type subassemblies such as oil, aqueous vapor, the practicality is better, uses also comparatively conveniently.

Description

Numerical control main shaft

Technical Field

The utility model belongs to the technical field of the digit control machine tool accessory, concretely relates to numerical control main shaft.

Background

Many digit control machine tool, cutting equipment, equipment such as processing, when the processing product, need use oil, water, gas to carry out auxiliary machining, for example during operation such as lathe cutting, drilling, the debris that produce need with oil, water washing or cooling, or will blow dust or debris off to blow to avoid influencing the processing operation. To achieve this, it is usually necessary to separately purchase or use oil, water, and gas equipment, which may result in an increase in production costs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a numerical control main shaft aims at solving the problem of proposing among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a numerical control main shaft comprises an outer shell, wherein a stator is embedded in the outer shell, a rotor is arranged in the stator in a matching manner, a rotating shaft is fixedly and alternately sleeved in the rotor, a plurality of bearings are embedded in the front end and the rear end of the outer shell, the plurality of bearings are respectively sleeved with the front end and the rear end of the rotating shaft, and a turbofan is further arranged at the front end of the rotating shaft through two locking ring shaft sleeves;

and a cooling air duct and a cooling oil duct are reserved in the outer shell, and the turbofan generates downward pressure air and blows the downward pressure air into the cooling air duct and the cooling oil duct.

As an optimization of the utility model, the end cover is all installed to the end around the shell body, the middle part of end cover is reserved has the axle hole of cover in the pivot outside.

As an optimization of the utility model, the end cover one end fixedly connected with fan casing that is located the pivot front end, turbofan arranges the fan casing inside in.

As an optimization of the utility model, a plurality of air inlet pressure ports have been seted up to the end of end cover, and are a plurality of air inlet pressure port communicates with cooling duct and cooling oil duct respectively.

As an optimization, a plurality of air outlets and oil-outs have been seted up to the bottom of shell body, air outlet and cooling duct intercommunication, oil-out and cooling oil duct intercommunication.

As an optimization of the utility model, the outside fixed mounting of shell body has the oil nipple, oil nipple and the inside intercommunication of cooling oil duct.

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

through install turbofan additional in the pivot outside, at the main shaft during operation, the pivot drives turbofan production down the forced air and blows in cooling duct and cooling oil duct, make main shaft and turbofan share a power source, realize to main shaft forced air cooling or water-cooling, need not purchase in addition oil, water, gas equipment power component, can effectively reduce main shaft use cost and the manufacturing cost who adds man-hour to the product, when the main shaft stop work, turbofan stop work, need not close turbofan in addition, make the main shaft operate more simply when using.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the present invention;

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

FIG. 3 is a schematic view of a turbofan according to the present invention;

fig. 4 is a cross-sectional view of the present invention.

In the figure: 1. an outer housing; 11. a stator; 12. a rotor; 13. a bearing; 14. a cooling air duct; 15. a cooling oil passage; 16. an air outlet; 17. an oil outlet; 18. an oil injection nozzle; 2. a rotating shaft; 3. a turbo fan; 4. an end cap; 41. an air inlet pressurizing port; 5. a fan cover.

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.

Referring to fig. 1-4, the present invention provides the following technical solutions: a numerical control main shaft comprises an outer shell 1, wherein a stator 11 is embedded in the outer shell 1, a rotor 12 is arranged in the stator 11 in a matched mode, a rotating shaft 2 is fixedly inserted and sleeved in the rotor 12, a plurality of bearings 13 are embedded in the front end and the rear end of the outer shell 1 respectively, the plurality of bearings 13 are respectively sleeved with the front end and the rear end of the rotating shaft 2, and a turbofan 3 is further installed at the front end of the rotating shaft 2 through two locking ring shaft sleeves 21; the turbofan 3 is clamped and fixed outside the rotating shaft 2 by the two locking ring shaft sleeves 21, so that when the rotating shaft 2 is driven by the stator 11 matched with the rotor 12, the turbofan 3 can also rotate simultaneously, the turbofan 3 is not required to be connected with other power sources, meanwhile, the turbofan 3 is coaxially arranged with the rotating shaft 2, and the influence of the turbofan 3 on the rotating shaft 2 can be reduced;

a cooling air duct 14 and a cooling oil duct 15 are reserved in the outer shell 1, and the turbofan 3 generates downward pressure air and blows the downward pressure air into the cooling air duct 14 and the cooling oil duct 15;

specifically, when the turbofan 3 rotates, the generated downward pressure air is blown into the cooling air duct 14 and the cooling oil duct 15, and the interiors of the cooling air duct 14 and the cooling oil duct 15 are pressurized to provide a power source for air, water or oil.

In this embodiment: end covers 4 are installed at the front end and the rear end of the outer shell 1, and shaft holes sleeved outside the rotating shaft 2 are reserved in the middle of the end covers 4.

Specifically, a gap between the outer shell 1 and the rotating shaft 2 is sealed through the installed end cover 4, and dust or impurities are prevented from entering the main shaft.

In this embodiment: the fan cover 5 is fixedly connected to one end of the end cover 4 located at the front end of the rotating shaft 2, the turbofan 3 is arranged inside the fan cover 5, the end of the end cover 4 is provided with a plurality of air inlet pressurizing ports 41, and the air inlet pressurizing ports 41 are respectively communicated with the cooling air duct 14 and the cooling oil duct 15.

Specifically, can protect turbofan 3 through fan casing 5 that sets up, fan casing 5 inboard apart from turbofan 3's gap is less than 1mm moreover, and the cooperation sets up air inlet pressure port 41 again for the wind energy that pushes down that turbofan 3 produced can get into in cooling duct 14 and the cooling oil duct 15.

In this embodiment: the bottom of the outer shell 1 is provided with a plurality of air outlets 16 and oil outlets 17, the air outlets 16 are communicated with the cooling air duct 14, the oil outlets 17 are communicated with the cooling oil duct 15, an oil filling nozzle 18 is fixedly mounted on the outer side of the outer shell 1, and the oil filling nozzle 18 is communicated with the inside of the cooling oil duct 15.

Specifically, through the air outlet 16 that sets up, can make the leeward pressure wind that turbofan 3 produced flow through and discharge behind cooling duct 14, realize cooling the inside of main shaft or cooling the tool bit, can pour into cooling water or cooling oil into in cooling duct 15 through the oiling mouth 18 that sets up, the leeward pressure wind that turbofan 3 produced can be discharged through oil-out 17 with the cooling water or cooling oil that flow through cooling duct 15, can realize cooling the inside of main shaft or cooling the tool bit equally.

It should also be noted that: the pressure intensity of the downward pressure wind generated by the turbofan 3 is greater than the oil pressure intensity of the oil filled into the cooling oil duct 15 by the oil filling nozzle 18, so that the cooling water or the cooling oil can be stably sprayed out through the oil outlet 17.

Of course, the structure of the main shaft for cooling oil, water and gas by using the turbofan 3 to generate the compressed air along with the rotation of the rotating shaft 2 is not only suitable for the electric main shaft, but also can be used for the mechanical main shaft, and the utility model discloses the scope of protection.

This numerical control main shaft is than the main shaft that the tradition comprises shell body, axle core, end cover isotructure, this numerical control main shaft through add turbofan 3 and with 2 outside transmissions of pivot, when main shaft during operation, turbofan 3 rotates along with pivot 2, realizes the drawing liquid exhaust, makes the main shaft need not additionally be equipped with pump class subassemblies such as oil, aqueous vapor then, the practicality is better, it is also comparatively convenient to use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A numerical control main shaft comprises an outer shell (1), and is characterized in that: a stator (11) is embedded in the outer shell (1), a rotor (12) is arranged in the stator (11) in a matching manner, a rotating shaft (2) is fixedly sleeved in the rotor (12) in a penetrating manner, a plurality of bearings (13) are embedded in the front end and the rear end of the outer shell (1), the plurality of bearings (13) are respectively sleeved with the front end and the rear end of the rotating shaft (2), and a turbofan (3) is further installed at the front end of the rotating shaft (2) through two locking ring shaft sleeves (21);

and a cooling air duct (14) and a cooling oil duct (15) are reserved in the outer shell (1), and the turbofan (3) generates downward air and blows the downward air into the cooling air duct (14) and the cooling oil duct (15).

2. A numerically controlled spindle according to claim 1, wherein: end covers (4) are installed at the front end and the rear end of the outer shell (1), and a shaft hole sleeved outside the rotating shaft (2) is reserved in the middle of each end cover (4).

3. A numerically controlled spindle according to claim 1, wherein: and one end of the end cover (4) positioned at the front end of the rotating shaft (2) is fixedly connected with a fan cover (5), and the turbofan (3) is arranged in the fan cover (5).

4. A numerically controlled spindle according to claim 2, wherein: a plurality of air inlet pressurizing ports (41) are formed in the end of the end cover (4), and the air inlet pressurizing ports (41) are communicated with the cooling air duct (14) and the cooling oil duct (15) respectively.

5. A numerically controlled spindle according to claim 1, wherein: the bottom of the outer shell (1) is provided with a plurality of air outlets (16) and oil outlets (17), the air outlets (16) are communicated with the cooling air duct (14), and the oil outlets (17) are communicated with the cooling oil duct (15).

6. A numerically controlled spindle according to claim 1, wherein: the outer side of the outer shell (1) is fixedly provided with an oil injection nozzle (18), and the oil injection nozzle (18) is communicated with the interior of the cooling oil duct (15).