CN218983199U

CN218983199U - Machine tool electric spindle with automatic cooling function

Info

Publication number: CN218983199U
Application number: CN202223548890.9U
Authority: CN
Inventors: 孙晋鹏; 肖春龙; 缑玉栋; 苗福喜
Original assignee: ANYANG HUA-AN UNIVERSAL SPINDLE TECHNOLOGY Ltd
Current assignee: ANYANG HUA-AN UNIVERSAL SPINDLE TECHNOLOGY Ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-09
Anticipated expiration: 2032-12-21

Abstract

The utility model discloses a machine tool electric spindle with an automatic cooling function, which relates to the technical field of electric spindles, and comprises a spindle housing, wherein a spindle is arranged in the spindle housing, a liquid containing groove is formed in the spindle, an installation groove communicated with the inside of the liquid containing groove is formed in the outer surface of the spindle, a plug is connected in the installation groove in a sliding manner, a sealing device is arranged on the plug, and a first cooling groove is formed in the spindle.

Description

Machine tool electric spindle with automatic cooling function

Technical Field

The utility model relates to the technical field of electric spindles, in particular to a machine tool electric spindle with an automatic cooling function.

Background

The high-speed machining can not only greatly improve the machining efficiency, but also remarkably improve the machining quality of the workpiece, so that the high-speed machining device has a very wide application field, and is particularly used in the manufacturing industries of aerospace, automobiles, molds and the like. Thus, a numerical control machine tool having a high-speed processing capability has become a new market. Currently, various well-known machine tool manufacturers at home and abroad widely adopt an electric spindle structure in a high-speed numerical control machine tool, in particular to a composite machine tool, a multi-axis linkage, a polyhedral machine tool and a parallel machine tool. The electric spindle is a heart part of a high-speed numerical control processing machine tool, the performance index of the electric spindle directly determines the level of the machine tool, and the electric spindle is a precondition and basic condition for the machine tool to realize high-speed processing.

The typical structural layout mode of some existing electric spindle units at present is that a motor is arranged between a front bearing and a rear bearing of a spindle, and the electric spindle unit has the advantages that the axial dimension of the spindle unit is shorter, the rigidity of the spindle is high, the power is high, and the electric spindle unit is suitable for large and medium-sized high-speed numerical control machine tools; however, due to the fact that the natural heat dissipation condition of the motor in the sealed spindle box body is poor, the temperature rise is relatively high, meanwhile, the heat generated by the built-in motor and the heat generated by the spindle bearing cannot be timely dispersed, thermal deformation is easy to occur, the machining precision of a machine tool is severely reduced, and the service life of the bearing is seriously shortened, so that the service life of the electric spindle is shortened.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art, and provides a machine tool electric spindle with an automatic cooling function, which can solve the problem of poor heat dissipation of the spindle.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lathe electricity main shaft with automatic cooling function, includes the axle housing, and the inside of axle housing is provided with the main shaft, the liquid groove has been seted up to the inside of main shaft, and the mounting groove with the inside intercommunication of liquid groove has been seted up to the surface of main shaft, and the inside sliding connection of mounting groove has the stopper, is provided with sealing device on the stopper, and first cooling groove has been seted up to the inside of main shaft, and first cooling groove is the slope form setting in the inside of main shaft, the inside in first cooling groove communicates with the inside of liquid groove.

Preferably, the inside of main shaft has seted up the second cooling groove, and the inside in second cooling groove communicates with the inside in first cooling groove, and the second cooling groove is the slope form setting in the inside of main shaft, and the second cooling groove forms the Y font with first cooling groove.

Preferably, the outer surface of the shaft housing is provided with a heat dissipation groove.

Preferably, the outer surface of the main shaft is provided with a heat dissipation hole.

Preferably, the sealing device comprises a second sealing ring, the surface of the second sealing ring is fixedly connected with the surface of the plug, the outer surface of the second sealing ring is in sliding connection with the inside of the mounting groove, the inner surface of the mounting groove is provided with a sealing groove, the section of the sealing groove is triangular, the surface of the plug is fixedly connected with a first sealing ring, the section of the first sealing ring is right trapezoid, and the surface of the first sealing ring is in sliding connection with the inside of the mounting groove and the sealing groove.

Preferably, the bottom of the first sealing ring is provided with a groove.

The beneficial effects of the utility model are as follows:

(1) This lathe electricity main shaft with automatic cooling function, when rotating through the main shaft, make the inside coolant liquid flow direction of flourishing cistern first cooling groove and the inside in second cooling groove, and make the inside heat that produces of main shaft by the cooling carry out certain absorption, form the Y font through first cooling groove and second cooling groove simultaneously, first cooling groove and second cooling groove all are the slope form setting in the inside of main shaft, make the coolant liquid when the main shaft rotates, can flow in more smoothly with the inside of outflow first cooling groove and second cooling groove, and make the heat that the main shaft produced when rotating dispel the heat more smoothly, and realize the automatic cooling of main shaft to a certain extent, make the life of main shaft obtain certain extension.

(2) This lathe electricity main shaft with automatic cooling function, through the mutually supporting of seal groove and first sealing ring, make the position of stopper obtain the location, simultaneously through seal groove and first sealing ring and second sealing ring, make the leakproofness of stopper and mounting groove obtain certain promotion to reduce the condition that the coolant liquid appears leaking to a certain extent, thereby make the device can run more smoothly, and make the staff can use the device more conveniently.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of a machine tool motorized spindle with an automatic cooling function according to the present utility model;

FIG. 2 is a schematic left-hand plan view of the spindle of the present utility model;

FIG. 3 is a schematic top plan view of the spindle of the present utility model;

fig. 4 is an enlarged schematic view of fig. 2 a in accordance with the present utility model.

Reference numerals: 1. a shaft housing; 2. a main shaft; 3. a mounting groove; 4. a plug; 5. a liquid container; 6. a first cooling tank; 7. a heat radiation hole; 8. a second cooling tank; 9. sealing grooves; 10. a first seal ring; 11. a second seal ring; 12. a groove; 13. a heat sink; 14. and the heat dissipation holes.

Detailed Description

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a lathe electricity main shaft with automatic cooling function, including axle housing 1, the inside of axle housing 1 is provided with main shaft 2, liquid groove 5 has been seted up to the inside of main shaft 2, liquid groove 5's inside holds the coolant liquid, liquid groove 5 inside intercommunication's mounting groove 3 has been seted up to the surface of main shaft 2, mounting groove 3's inside sliding connection has stopper 4, can be sealed through stopper 4 mounting groove 3, be provided with sealing device on the stopper 4, first cooling groove 6 has been seted up to the inside of main shaft 2, first cooling groove 6 is the slope form setting in the inside of main shaft 2, the quantity of first cooling groove 6 is a plurality of, a plurality of first cooling grooves 6 equidistance set up in the inside of main shaft 2, the inside of first cooling groove 6 communicates with liquid groove 5's inside, liquid groove 5 inside coolant liquid can flow to the inside of first cooling groove 6.

Further, the inside of main shaft 2 has been seted up second cooling groove 8, and the inside in second cooling groove 8 communicates with the inside in first cooling groove 6, and second cooling groove 8 is the slope form setting in the inside of main shaft 2, and second cooling groove 8 forms the Y font with first cooling groove 6, and the quantity in second cooling groove 8 is a plurality of, and a plurality of second cooling grooves 8 equidistance set up in the inside of main shaft 2.

After the cooling liquid is put into the liquid containing groove 5 through the mounting groove 3 by the staff, the plug 4 slides into the mounting groove 3, sealing of the mounting groove 3 is achieved, meanwhile, the plug 4 is flush with the outer surface of the main shaft 2, the plug 4 cannot influence rotation of the main shaft 2, when the main shaft 2 rotates, the cooling liquid in the liquid containing groove 5 flows into the first cooling groove 6 and the second cooling groove 8, heat generated in the main shaft 2 is cooled to a certain extent to be absorbed, meanwhile, Y-shaped is formed through the first cooling groove 6 and the second cooling groove 8, the first cooling groove 6 and the second cooling groove 8 are all obliquely arranged in the main shaft 2, the cooling liquid can flow into and flow out of the first cooling groove 6 and the second cooling groove 8 smoothly when the main shaft 2 rotates, heat generated by the main shaft 2 can be radiated smoothly when the main shaft 2 rotates, automatic cooling of the main shaft 2 is achieved to a certain extent, and the service life of the main shaft 2 is prolonged to a certain extent.

Further, the outer surface of the shaft housing 1 is provided with a plurality of heat dissipation grooves 13, the plurality of heat dissipation grooves 13 are equidistantly arranged on the shaft housing 1, and heat generated by the main shaft 2 and transferred to the shaft housing 1 can be dissipated more smoothly through the heat dissipation grooves 13.

Further, the outer surface of the main shaft 2 is provided with the heat dissipation holes 14, and the heat generated by the main shaft 2 can be dissipated more smoothly through the heat dissipation holes 14.

The sealing device comprises a second sealing ring 11, the surface of the second sealing ring 11 is fixedly connected with the surface of the plug 4, the outer surface of the second sealing ring 11 is in sliding connection with the inside of the mounting groove 3, the inner surface of the mounting groove 3 is provided with a sealing groove 9, the cross section of the sealing groove 9 is triangular, the surface of the plug 4 is fixedly connected with a first sealing ring 10, the cross section of the first sealing ring 10 is right trapezoid, the surface of the first sealing ring 10 is in sliding connection with the inside of the mounting groove 3 and the sealing groove 9, and the first sealing ring 10 and the second sealing ring 11 can deform.

Further, the bottom of the first sealing ring 10 is provided with a groove 12, and the deformation of the first sealing ring 10 is smoother through the groove 12, and the first sealing ring 10 can slide into the sealing groove 9 more smoothly.

After the plug 4 slides into the installation groove 3 through the staff, the position of the plug 4 is positioned through the mutual matching of the sealing groove 9 and the first sealing ring 10, and meanwhile, the tightness of the plug 4 and the installation groove 3 is improved to a certain extent through the sealing groove 9 and the first sealing ring 10 and the second sealing ring 11, so that the leakage of cooling liquid is reduced to a certain extent, the device can run more smoothly, and the staff can use the device more conveniently.

Working principle: this lathe electricity main shaft with automatic cooling function, after putting into the inside of flourishing cistern 5 through mounting groove 3 through the staff when using, make stopper 4 slide into the inside of mounting groove 3, and realize the sealing of mounting groove 3, simultaneously through the surface parallel and level of stopper 4 and main shaft 2, make stopper 4 can not influence the rotation of main shaft 2, when main shaft 2 rotates, make the inside coolant liquid flow direction of flourishing cistern 5 first cooling groove 6 and the inside of second cooling groove 8, and make the inside heat that produces of main shaft 2 carry out certain absorption by the cooling, simultaneously form the Y font through first cooling groove 6 and second cooling groove 8, first cooling groove 6 and second cooling groove 8 are all in the inside of main shaft 2 of slope form setting, make the coolant liquid flow into more smoothly with the inside of outflow first cooling groove 6 and second cooling groove 8 when main shaft 2 rotates, and make the heat that main shaft 2 produced when rotating can dispel the heat more smoothly.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides a lathe electricity main shaft with automatic cooling function, includes axle housing (1), and the inside of axle housing (1) is provided with main shaft (2), its characterized in that: the novel cooling device is characterized in that a liquid containing groove (5) is formed in the main shaft (2), an installation groove (3) communicated with the interior of the liquid containing groove (5) is formed in the outer surface of the main shaft (2), a plug (4) is connected to the interior of the installation groove (3) in a sliding mode, a sealing device is arranged on the plug (4), a first cooling groove (6) is formed in the main shaft (2), the first cooling groove (6) is obliquely arranged in the main shaft (2), and the interior of the first cooling groove (6) is communicated with the interior of the liquid containing groove (5).

2. The machine tool electric spindle with an automatic cooling function according to claim 1, wherein: the inside of main shaft (2) has seted up second cooling groove (8), and the inside in second cooling groove (8) communicates with the inside in first cooling groove (6), and second cooling groove (8) are the slope form and set up in the inside of main shaft (2), and second cooling groove (8) and first cooling groove (6) form the Y font.

3. The machine tool electric spindle with an automatic cooling function according to claim 1, wherein: the outer surface of the shaft housing (1) is provided with a heat dissipation groove (13).

4. The machine tool electric spindle with an automatic cooling function according to claim 1, wherein: the outer surface of the main shaft (2) is provided with a heat dissipation hole (14).

5. The machine tool electric spindle with an automatic cooling function according to claim 1, wherein: sealing device includes second sealing ring (11), the surface of second sealing ring (11) is connected with the fixed surface of stopper (4), the surface of second sealing ring (11) and the inside sliding connection of mounting groove (3), seal groove (9) have been seted up to the internal surface of mounting groove (3), the cross-section of seal groove (9) is triangle-shaped, the fixed surface of stopper (4) is connected with first sealing ring (10), the cross-section of first sealing ring (10) is right trapezoid, the surface of first sealing ring (10) and the inside sliding connection of mounting groove (3) and seal groove (9).

6. The machine tool electric spindle with the automatic cooling function according to claim 5, wherein: a groove (12) is formed in the bottom of the first sealing ring (10).