CN113389904A

CN113389904A - Main shaft structure

Info

Publication number: CN113389904A
Application number: CN202010173310.9A
Authority: CN
Inventors: 张信平
Original assignee: Lixin Precision Co ltd
Current assignee: Lixin Precision Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-09-14

Abstract

The invention relates to a main shaft structure, which comprises: a body is provided with a first containing groove, a second containing groove, a plurality of first screwing parts, a first inlet and a first outlet; a set of labyrinth rings; a rotating shaft is provided with a first peripheral surface and a first end part; the cover body group comprises a cover body; the cover body is provided with a second peripheral surface, a third containing groove and a first channel; the distribution ring is provided with a plurality of second outlets, a plurality of third outlets, an accommodating space, a first inclined plane and a first gap; a sealing member has a third peripheral surface and a second gap communicating with the first gap.

Description

Main shaft structure

Technical Field

The present invention relates to a spindle structure, and more particularly, to a spindle structure having a distribution ring, the distribution ring having a plurality of second outlets and a plurality of third outlets, wherein the gas discharged from each of the second outlets and each of the third outlets is more uniform, and the distribution ring has a more uniform effect of discharging the gas.

Background

As previously known, the spindle structure is commonly used, such as taiwan patent application no: 103209154, certificate number: m489044, patent name: the main shaft of the machine tool with the gas power type water retaining device has the structure that: a kind of machine tool main spindle with air power type water retaining device includes: a main shaft seat 10, a rotatable rotating shaft center 11 is penetrated through the center of the main shaft seat 10, an air inlet channel 12 is arranged in the wall surface of the main shaft seat 10, and one end of the air inlet channel 12 is communicated with a gas source; a dust-proof cover 20 disposed at an end of the rotation axis 11, an air power passage 21 disposed between the dust-proof cover 20 and the spindle base 10, the air power passage 21 being communicated with the other end of the air inlet passage 12; wherein the gas power passage 21 is disposed along a radial direction of the spindle stock 10.

However, the drawback of the conventional tool spindle structure with an air power type water retaining device is that:

as shown in fig. 5 of the patent application, the gas flows from the gas inlet channel 12 through the communicating channel 142 into the gas chamber 143 and then is discharged from the gas passage 21 through the circulating gap 151, but the gas chamber 143 and the circulating gap 151 are only annular, the gas flow rate at the position of the circulating gap 151 closer to the communicating channel 142 is larger than that at the position of the circulating gap 151 farther from the communicating channel 142, that is, as shown in fig. 5, the gas is minimum at the left side and the gas at the right side is larger, the gas in the communicating channel 124 can be stored in the gas chamber 143, but the gas cannot be completely and evenly dispersed and discharged in an annular shape through the circulating gap 151, and the cutting fluid or dust cannot be most effectively blocked from entering the tool main shaft at the right side.

In view of the above disadvantages of the conventional structure, the inventor of the present invention has developed a product of a spindle structure capable of solving the disadvantages of the conventional structure by using the manufacturing, production and design experiences of the related industries for many years.

Disclosure of Invention

The main purposes of the invention are as follows: a spindle structure is provided, the distribution ring is provided with a plurality of second outlets and a plurality of third outlets, the gas quantity discharged by each second outlet and each third outlet is more even, and the distribution ring has the effect of discharging the gas quantity more evenly.

To achieve the above object, the present invention provides a spindle structure, comprising: the method comprises the following steps:

the body is provided with a first containing groove, the body is provided with a second containing groove, the second containing groove is arranged at one end of the first containing groove, the second containing groove is communicated with the first containing groove, the diameter of the second containing groove is larger than that of the first containing groove, the body is provided with a first inlet, the front end face of the body is provided with a first outlet, the first outlet is communicated with the first inlet, and gas enters from the first inlet and is discharged from the first outlet;

a group of labyrinth rings, which are accommodated in the second accommodating groove;

a rotating shaft pivoted to the first accommodating groove, the rotating shaft having a first circumferential surface, the front end of the rotating shaft having a first end;

the cover body group is fixedly arranged at the front end part of the body and comprises a cover body;

the cover body is fixedly arranged at the front end part of the body and provided with a second peripheral surface, the second peripheral surface is used for pivoting the first peripheral surface, the second peripheral surface is in a through groove shape, one end of the cover body is provided with a third containing groove, the third containing groove is arranged in the direction from one end of the second peripheral surface to the outside, the third containing groove is in a concave annular groove shape, the cover body is provided with a first channel, one end of the first channel is communicated with the first outlet, the other end of the first channel is communicated with the third containing groove, and the gas enters from the first inlet and then flows from the first outlet and the first channel to the third containing groove;

a distribution ring accommodated in the third groove, one end of the distribution ring having a plurality of second outlets, the outer peripheral surface of the distribution ring having a plurality of third outlets, the openings of the third outlets facing the inner peripheral surface of the third groove, an accommodation space formed between the distribution ring and the third groove and communicating with the first channel, the accommodation space communicating with each second outlet and each third outlet, the accommodation space being disposed between the first channel, each second outlet and each third outlet, such that the gas entering from the first inlet is sequentially discharged from the first outlet and the first channel to the accommodation space for buffering, and then discharged from the accommodation space to each second outlet and each third outlet, the openings of the accommodation space facing the bottom of the third groove, the distribution ring having a first inclined surface, the first inclined surface being disposed at one side of the plurality of third outlets, a first gap is arranged between the first inclined plane and the third containing groove, and the gas is discharged out of the cover body from each second outlet and the first gap after being discharged to each second outlet and each third outlet respectively;

the sealing piece is sleeved on the rotating shaft and arranged at one end of the cover body group, so that the distribution ring is hidden in the cover body, the distribution ring is arranged between the cover body and the sealing piece, the sealing piece is provided with a third peripheral surface, the third peripheral surface is sleeved with the rotating shaft, the sealing piece and the rotating shaft rotate integrally to form a fast rotating shape, a second gap is formed between the sealing piece, the cover body and the distribution ring, and the second gap is communicated with the first gap.

The invention has the following effects: the gas enters from the first inlet, is discharged to the accommodating space from the first outlet and the first channel for buffering, and is uniformly dispersed and discharged to each second outlet and each third outlet from the accommodating space, the gas is discharged out of the main shaft structure from the first gap and the second gap, and the gas can be uniformly dispersed and discharged out of the cover body by the distribution ring, so that each liquid or dust can be effectively prevented from entering the main shaft structure from the second gap. The distribution ring is provided with a plurality of second outlets and a plurality of third outlets, the gas quantity discharged by each second outlet and each third outlet is more even, and the distribution ring has the effect of discharging the gas quantity more evenly.

Drawings

Fig. 1 is an exploded perspective view of the spindle structure of the present invention.

Fig. 2 is an exploded perspective view of the cover assembly of the spindle structure of the present invention.

Fig. 3 is a front view of the spindle structure distribution ring of the present invention.

Fig. 4 is a cross-sectional view taken at a-a of fig. 3 in accordance with the present invention.

Fig. 5 is an enlarged view of the present invention at B of fig. 4.

Fig. 6 is a perspective view of the spindle structure seal of the present invention.

Fig. 7 is a perspective assembly view of the spindle structure of the present invention.

Fig. 8 is a front view of the spindle structure of the present invention.

Fig. 9 is a cross-sectional view at C-C of fig. 8 of the present invention.

Fig. 10 is an enlarged view of the invention at D of fig. 9.

Fig. 11 is a perspective view of another perspective of a distribution ring according to the second embodiment of the present invention.

Fig. 12 is an exploded perspective view of a third embodiment of the present invention.

Fig. 13 is an enlarged view of the invention at E of fig. 12.

Fig. 14 is a front view of a third embodiment of the present invention.

Fig. 15 is a cross-sectional view at C-C of fig. 14 of the present invention.

Fig. 16 is an enlarged view of the invention at D of fig. 15.

Detailed Description

Referring first to fig. 1 to 6, fig. 1 is an exploded perspective view of a spindle structure of the present invention, fig. 2 is an exploded perspective view of a cover assembly 30 of the spindle structure of the present invention, fig. 3 is a front view of a distribution ring 40 of the spindle structure of the present invention, fig. 4 is a cross-sectional view taken along line a-a of fig. 3 of the present invention, fig. 5 is an enlarged view taken along line B of fig. 4 of the present invention, fig. 6 is a perspective view of a seal 50 of the spindle structure of the present invention, and the present invention relates to a spindle structure, which includes:

a main body 10, the main body 10 is assembled on a machine tool, the main body 10 is provided with a first receiving groove 11, the first receiving groove 11 is a through circular groove, the main body 10 is provided with a second receiving groove 12, the second receiving groove 12 is provided at one end of the first receiving groove 11, the second receiving groove 12 is communicated with the first receiving groove 11, the diameter of the second receiving groove 12 is larger than the diameter of the first receiving groove 11, a plurality of first screwing parts 13 are provided at a front end surface of the main body 10, the plurality of first screwing parts 13 are annularly arranged around an axis of the first receiving groove 11, the first screwing parts 13 are internally threaded, the main body 10 is provided with a first inlet 14, the first inlet 14 is connected with a gas source, the first inlet 14 is a circular hole, a first outlet 15 is provided at the front end surface of the main body 10, as shown in fig. 9, the first outlet 15 is communicated with the first inlet 14, and gas of the first inlet 14 is discharged from the first outlet 15, the first outlet 15 and the first inlet 14 are perpendicular to each other and are L-shaped, the first outlet 15 is circular hole-shaped, the first outlet 15 is disposed between the first screwing parts 13, and a ring is disposed at the first outlet 15 to prevent gas from being discharged from the first outlet 15;

a set of labyrinth rings 18, wherein the labyrinth rings 18 are accommodated in the second accommodating groove 12 of the body 10, the labyrinth rings 18 are partially exposed out of the body 10, the labyrinth rings 18 are in a circular ring shape, the labyrinth rings 18 are generally provided with at least two ring bodies, and the labyrinth rings 18 can prevent each liquid from entering the body 10;

a rotating shaft 20, the rotating shaft 20 being pivotally installed at the first accommodating slot 11, the rotating shaft 20 being partially exposed out of the main body 10, the rotating shaft 20 being capable of rotating rapidly, a bearing member being installed between the rotating shaft 20 and the first accommodating slot 11, a set of portion 21 being installed at one end of the rotating shaft 20, the set of portion 21 being used for assembling a tool, the set of portion 21 being circular-groove-shaped, the rotating shaft 20 being installed with a first circumferential surface 22, the first circumferential surface 22 being circular-surface-shaped, a first end portion 23 being installed at a front end of the rotating shaft 20, the first end portion 23 being installed between an opening of the set of portion 21 and the first circumferential surface 22, the first end portion 23 being flat-shaped, the rotating shaft 20 being installed with a first angular end 24, the first angular end 24 being installed at a corner of the first circumferential surface 22 and the first end portion 23, the rotating shaft 20 being installed with a first annular groove 25, the first annular groove 25 being installed at the first end portion 23, the first annular groove 25 being installed between the first end portion 23 and the first angular end portion 24, the first ring groove 25 is a concave ring groove, the rotating shaft 20 is provided with a plurality of second screwing parts 26, the plurality of second screwing parts 26 are arranged on the first end part 23, the plurality of second screwing parts 26 are annularly arranged with the axis of the group of parts 21, the number of the second screwing parts 26 is two, the second screwing parts 26 are symmetrical, and the second screwing parts 26 are in a female thread shape;

a first ring body 28, the first ring body 28 being accommodated in the first ring groove 25, the first ring body 28 being in a shape of a circular ring;

a cover assembly 30, the cover assembly 30 is fixedly disposed at the front end of the main body 10, and as shown in fig. 2, the cover assembly 30 includes a cover 31, a second ring 32 and a plurality of first screwing members 33;

the cover 31 is fixed at the front end of the main body 10, the cover 31 has a second peripheral surface 311, the second peripheral surface 311 is pivoted to the first peripheral surface 21, the second peripheral surface 311 is through groove-shaped, one end of the cover 31 has a third containing groove 312, the third containing groove 312 is arranged at one end of the second peripheral surface 311 toward the outside, the third containing groove 312 is concave groove-shaped, the cover 31 has a first channel 313, one end of the first channel 313 is communicated with the first outlet 15, the other end of the first channel 313 is communicated with the third containing groove 312, the gas enters from the first inlet 14 and then passes from the first outlet 15 and the first channel 313 to the third containing groove 312, the other end of the cover 31 has a second ring groove 314, the second ring groove 314 is arranged at the other end of the second peripheral surface 311 toward the outside, the second ring groove 314 is far away from the third containing groove 312, the second ring groove 314 is concave groove-shaped, the cover 31 has a plurality of first through holes 315, each first through hole 315 is aligned with each first screw-fastening portion 13, the number of the first through holes 315 matches with the number of the first screw-fastening portions 13, the plurality of first through holes 315 are arranged in a ring shape around the axis of the second peripheral surface 311, and the first through holes 315 are circular;

the second ring 32 is accommodated in the second ring groove 314, the second ring 32 abuts against the end of the body 10 and the second ring groove 314, and the second ring 32 is in a shape of a circular ring;

each first screwing member 33 is inserted into each first through hole 315 and screwed at each first screwing portion 13, so that the cover 31 and the body 10 are fixedly arranged, and each first screwing member 33 is in an external thread shape;

a distribution ring 40, please refer to fig. 3 to 5, the distribution ring 40 is accommodated in the third accommodating groove 312, the distribution ring 40 is in a circular ring shape, the volume of the distribution ring 40 is smaller than the volume of the third accommodating groove 312, a close fit structure is formed between the inner circumferential surface of the distribution ring 40 and the third accommodating groove 312, one end of the distribution ring 40 is provided with a plurality of second outlets 41, the plurality of second outlets 41 are arranged in a ring shape around the axis of the distribution ring 40, the number of the second outlets 41 is four, the second outlets 41 are in a circular hole shape, the outer circumferential surface of the distribution ring 40 is provided with a plurality of third outlets 42, the openings of the third outlets 42 are aligned with the inner circumferential surface of the third accommodating groove 312, the plurality of third outlets 42 are arranged in a ring shape around the axis of the distribution ring 40, the number of the third outlets 42 is greater than the number of the second outlets 41, the number of the third outlets 42 is twelve, and the third outlets 42 are in a circular hole shape, the cross section of the distribution ring 40 is L-shaped, an accommodation space 43 is formed between the distribution ring 40 and the third accommodating groove 312, the accommodation space 43 is communicated with the first channel 313, the accommodation space 43 is communicated with each second outlet 41 and each third outlet 42, the accommodation space 43 is arranged between the first channel 313, each second outlet 41 and each third outlet 42, namely, the gas enters from the first inlet 14 and then is sequentially discharged from the first outlet 15 and the first channel 313 to the accommodation space 43 for temporary buffering, and then is uniformly discharged from the accommodation space 43 to each second outlet 41 and each third outlet 42, the accommodation space 43 is circular groove-shaped, the opening of the accommodation space 43 is aligned with the bottom of the third accommodating groove 312, the distribution ring 40 is provided with a first inclined surface 44, the first inclined surface 44 is arranged at one side of the plurality of third outlets 42, the first inclined surface 44 is inclined surface 44 with an inclined angle of 30-60 degrees, a first gap 45 is formed between the first inclined surface 44 and the third accommodating groove 312, as shown in fig. 10, the gas is discharged to each second outlet 41 and each third outlet 42 and then is discharged out of the cover 31 through each second outlet 42 and the first gap 45, respectively;

a sealing member 50, please refer to fig. 6, wherein the sealing member 50 is sleeved on the rotating shaft 20, the sealing member 50 is disposed at one end of the cover assembly 30, so that the distribution ring 40 is hidden in the cover 31, the distribution ring 40 is disposed between the cover 31 and the sealing member 50, the sealing member 50 has a third circumferential surface 51, the third circumferential surface 51 is sleeved on the rotating shaft 20, the sealing member 50 and the rotating shaft 20 rotate together to form a fast rotation, the sealing member 50 has a plurality of second through holes 52, each second through hole 52 is aligned with each second screw portion 26, the number of the second through holes 52 is matched with the second screw portions 26, the second through holes 52 are circular holes, one end of the third circumferential surface 51 is sequentially provided with a second end 53, a second corner 54 and a third end 55 toward the outer direction of the sealing member 50, the second end 53 abuts against the first end 23, the first ring 28 abuts against the first ring groove 25 and the second end 53, so that a gap between the rotating shaft 20 and the sealing member 50 is eliminated, liquid cannot enter the main body 10 from between the rotating shaft 20 and the sealing member 50, the second end 53 is planar, the second corner 54 abuts against the first corner 24, the third end 55 aligns with the cover 31 and the distribution ring 40, a second gap 56 is formed between the third end 55 and the cover 31 and the distribution ring 40, the second gap 56 is communicated with the first gap 45, the second corner 54 is disposed between the second end 53 and the third end 55, and the third end 55 is planar;

a plurality of end pieces 60, the end pieces 60 being assembled to the sealing piece 50, a third through hole 61 being provided in the end piece 60, each third through hole 61 being aligned with each second through hole 52, the number of the third through holes 61 being matched with the number of the second through holes 52, i.e. the number of the end pieces 60 being matched with the number of the second through holes 52, the third through holes 61 being circular, the end pieces 60 being quadrangular block-shaped;

a plurality of second screwing members 70, each second screwing member 70 is sequentially inserted into each third through hole 61 and each second through hole 52 and screwed at each second screwing portion 26, so that the rotating shaft 20, the sealing member 50 and the end piece 60 are assembled, and the number of the second screwing members 70 is matched with that of the end piece 60.

Referring to fig. 7 to 9, fig. 7 is a perspective view of the main shaft structure of the present invention, fig. 8 is a front view of the main shaft structure of the present invention, fig. 9 is a cross-sectional view taken at C-C of fig. 8 of the present invention, as can be clearly seen from the drawings, the labyrinth ring 18 is accommodated at the second accommodating groove 12, the rotating shaft 20 is pivotally arranged at the first accommodating groove 11, the cover 31 is fixedly arranged at the front end surface of the main body 10, each first screw 33 is inserted through each first through hole 315 and screwed to each first screw part 13, so that the cover 31 is fixedly arranged at the front end surface of the main body 10, the distribution ring 40 is accommodated at the third accommodating groove 312, the sealing member 50 is sleeved on the rotating shaft 20, the end piece 60 is arranged on the sealing member 50, each second screw 70 is inserted through each third through hole 61 and each second through hole 52 and screwed to each second screw part 26, the rotating shaft 20, the sealing member 50 and the end member 60 are assembled, and the rotating shaft 20, the sealing member 50, the end member 60 and the second screw member 70 are rotated rapidly.

Referring to fig. 10, fig. 10 is an enlarged view of fig. 9 at D, as clearly shown in the figure, the first inlet 14, the first outlet 15, the first passage 313, the accommodating space 43, the plurality of second outlets 41 and the plurality of third outlets 42 form a gas path passage, the gas source is connected to the first inlet 14, the gas enters from the first inlet 14, enters from the first outlet 15 and the first passage 313 to the accommodating space 43 for temporary buffering, and then evenly spreads from the accommodating space 43 to each of the second outlets 41 and each of the third outlets 42, the gas is discharged from the spindle structure through the first gap 45 and the second gap 56, and part of the gas at the second outlet 41 can fill the gaps at the rotating shaft 20, the labyrinth ring 18 and the cover 31.

Referring to fig. 11, fig. 11 is a perspective view of another view of the distribution ring 40 according to the second embodiment of the present invention, which can be clearly seen from the drawings, and as shown in fig. 3 to fig. 5, the third outlet 42 is in a shape of an elongated arc hole, the third outlet 42 is open, one end of the third outlet 42 is aligned with the bottom of the third receiving groove 312, and one side of the third outlet 42 is aligned with the inner peripheral surface of the third receiving groove 312.

Referring to fig. 12 to 16, fig. 12 is an exploded perspective view of a third embodiment of the present invention, fig. 13 is an enlarged view of the invention at a location E of fig. 12, fig. 14 is a front view of the third embodiment of the present invention, fig. 15 is a cross-sectional view of the invention at a location C-C of fig. 14, fig. 16 is an enlarged view of the invention at a location D of fig. 15, the rotating shaft 20 is provided with a plurality of first recesses 27, the second screw portion 26 is disposed in the first recesses 27, the sealing member 50 is provided with a plurality of first protrusions 58, the first protrusions 58 are received in the first recesses 27, the number of the first protrusions 58 is matched with the number of the first recesses 27, the shape of the first protrusions 58 is matched with the first recesses 27, the second through holes 52 are disposed on the first protrusions 58, each end piece 60 is received in the first protrusion 58, and the end piece 60 is also received in the first recesses 27.

In another embodiment of the present invention, the number of the second outlets 41 and the third outlets 42 is the same, but the aperture of the third outlet 42 is larger than the aperture of the second outlet 41, so as to have the function of distributing the gas amount, the end piece 60 is not provided, the second screw 70 directly passes through the two through holes 52 and is screwed to the second screw 26, the number of the first passages 313 is two or more, the plurality of first passages 313 are annularly arranged on the cover 31, and the cover 31 is provided with a concave ring groove at the connection position of the plurality of first passages 313 and the first outlet 15 to connect the plurality of first passages 313.

The main shaft structure of the invention has the advantages that:

1. the distribution ring 40 has a plurality of second outlets 41 and a plurality of third outlets 42, the plurality of second outlets 41 and the plurality of third outlets 42 are arranged in a ring shape, the amount of gas discharged from each second outlet 41 and each third outlet 42 is more uniform, and the distribution ring 40 has the effect of discharging the gas more uniformly.

2. As shown in fig. 10, the gas enters from the first inlet 14, is discharged from the first outlet 15 and the first channel 313 to the accommodating space 43 for buffering, and is then uniformly dispersed and discharged from the accommodating space 43 to each of the second outlets 41 and each of the third outlets 42, the gas is discharged from the main shaft structure through the first gap 45 and the second gap 56, and the distribution ring 40 can uniformly disperse and discharge the gas out of the cover 31, so as to more effectively prevent the liquid or dust from entering the main shaft structure through the second gap 56.

3. The distribution ring 40 is provided with the plurality of second outlets 41 and the plurality of third ports 42, that is, each liquid needs to enter the body 10 through two gas shields, and the probability of each liquid entering is greatly reduced.

4. The gas at the second outlet 41 is mainly provided to fill the gaps at the rotating shaft 20, the labyrinth ring 18 and the cover 31, the gas at the third outlet 42 is mainly to prevent the liquid from entering the second gap 56, and the design of the second outlet 41 and the third outlet 42 has the functions of each part.

5. The number of the third outlets 42 is greater than the number of the second outlets 41, so that the larger amount of the gas prevents each liquid from entering the second gap 56, the smaller amount of the gas fills each gap at the rotating shaft 20, the labyrinth ring 18 and the cover 31, and the distribution ring 40 has an effect of distributing the amount of the gas.

6. The first inclined surface 44 is provided, that is, the first gap 45 is inclined, and the gas discharged from the third outlet 42 is inclined to enter the second gap 56, so as to further prevent the liquid from entering the second gap 56.

7. The distribution ring 40 distributes the gas more evenly and also prevents uneven distribution of the gas at 20360 degrees on the shaft 20 when the shaft is rotating rapidly.

8. The sealing member 50 is assembled on the rotating shaft 20, and the first ring 28 is disposed between the sealing member 50 and the rotating shaft 20, so that when the rotating shaft 20 and the sealing member 50 rotate rapidly, liquid or dust can hardly enter the spindle structure from between the rotating shaft 20 and the sealing member 50.

Therefore, the main shaft structure of the invention has industrial utilization, novelty and advancement, and can be applied according to law as meeting the application requirements of the invention patent.

Claims

1. A spindle structure characterized in that: the method comprises the following steps:

2. The spindle structure according to claim 1, wherein: the body is assembled on the machine tool, the first containing groove is in a penetrating circular groove shape, a plurality of first screwing parts are arranged on the front end face of the body, the first screwing parts are annularly arranged by using the axis of the first containing groove, the first screwing parts are in an internal thread shape, the first inlet is connected with an air source, the first inlet is in a circular hole shape, the first outlet and the first inlet are mutually vertical and in an L shape, the first outlet is in a circular hole shape, the first outlet is arranged among the first screwing parts, and a ring is arranged at the first outlet to prevent air from being discharged from the first outlet; the cover body is provided with a plurality of first through holes, each first through hole is opposite to each first screw joint part, the number of the first through holes is matched with the first screw joint parts, the first through holes are arranged in a ring shape by using the axis of the second peripheral surface, and the first through holes are in a circular through hole shape; the cover body assembly is provided with a plurality of screwing pieces, each first screwing piece penetrates through each first through hole and is screwed at each first screwing part, so that the cover body and the body are fixedly arranged, and each first screwing piece is in an external thread shape; the labyrinth ring is partially exposed out of the body and is in a circular ring shape, the labyrinth ring is provided with at least two ring bodies, and the labyrinth ring can prevent all liquid from entering the body.

3. The spindle structure according to claim 1, wherein: the rotating shaft is partially exposed out of the body, the rotating shaft can rotate rapidly, a bearing piece is arranged between the rotating shaft and the first accommodating groove, one end of the rotating shaft is provided with a group arranging part for arranging a cutter, the group arranging part is in a circular groove shape, the first end part is arranged between the group arranging part and the first peripheral surface, the first end part is in a plane shape, the rotating shaft is provided with a first angle end, the first angle end is arranged at the first peripheral surface and the corner of the first end part, the rotating shaft is provided with a first annular groove, the first annular groove is arranged at the first end part, the first annular groove is arranged between the first end part and the first angle end, and the first annular groove is in a concave annular groove shape; a first ring body is arranged and accommodated at the first ring groove, and the first ring body is in a circular ring shape; the sealing member is sequentially provided with a second end part, a second corner end and a third end part, the second end part abuts against the first end part, the first ring body abuts between the first ring groove and the second end part, the second end part is planar, the second corner end abuts against the first corner end, the third end part is aligned with the cover body and the distribution ring, the second gap is arranged between the third end part and the cover body and the distribution ring, the second corner end is arranged between the second end part and the third end part, and the third end part is planar.

4. The spindle structure according to claim 1, wherein: wherein the rotating shaft is provided with a plurality of second screwing parts which are arranged on the first end part, the plurality of second screwing parts are arranged in a ring shape by the axis of the group of arranging parts, and the second screwing parts are in an internal thread shape; the sealing piece is provided with a plurality of second through holes, each second through hole is aligned to each second screw joint part, the number of the second through holes is matched with the second screw joint parts, and the second through holes are in a penetrating circular hole shape; the end piece is arranged on the sealing piece in a group, a third through hole is arranged in the end piece, each third through hole is aligned to each second through hole, the number of the third through holes is matched with that of the second through holes, namely, the number of the end pieces is matched with that of the second through holes, the third through holes are in a circular through hole shape, and the end piece is in a quadrangular block shape; a plurality of second screwing pieces are arranged, each second screwing piece sequentially penetrates through each third through hole and each second through hole and is screwed at each second screwing part, so that the rotating shaft, the sealing piece and the end piece are assembled, and the number of the second screwing pieces is matched with that of the end piece.

5. The spindle structure according to claim 1, wherein: the other end of the cover body is provided with a second annular groove, the second annular groove is arranged in the direction from the other end of the second peripheral surface to the outside, the second annular groove is far away from the third containing groove, and the second annular groove is in a concave annular groove shape; the cover body group is provided with a second ring body, the second ring body is accommodated in the second ring groove, the second ring body is abutted between the end part of the body and the second ring groove, and the second ring body is in a circular ring shape.

6. The spindle structure according to claim 1, wherein: the distribution ring is in a circular ring shape, the volume of the distribution ring is smaller than that of the third containing groove, a close fit structure is formed between the inner peripheral surface of the distribution ring and the third containing groove, the second outlets are annularly arranged around the axis of the distribution ring, the number of the second outlets is four, the second outlets are in a circular hole shape, the third outlets are annularly arranged around the axis of the distribution ring, the number of the third outlets is larger than that of the second outlets, the number of the third outlets is twelve, the third outlets are in a circular hole shape, the cross section of the distribution ring is in an L-shaped shape, the containing space is in a circular groove shape, and the first inclined plane is an inclined angle of 30-60 degrees.

7. The spindle structure according to claim 1, wherein: the third outlet is in a long arc hole shape, the third outlet is in an open shape, one end of the third outlet is opposite to the bottom of the third containing groove, and one side of the third outlet is opposite to the inner circumferential surface of the third containing groove.

8. The spindle structure according to claim 1, wherein: the rotating shaft is provided with a plurality of first grooves, the second screw joint part is arranged in the first grooves, the sealing piece is provided with a plurality of first lugs, the first lugs are accommodated in the first grooves, the number of the first lugs is matched with that of the first grooves, the shapes of the first lugs are matched with that of the first grooves, the second through holes are arranged on the first lugs, each end piece is assembled on the first lugs, and the end pieces are also accommodated in the first grooves.

9. The spindle structure according to claim 1, wherein: wherein, the number of the second outlet and the third outlet is the same, but the aperture of the third outlet is larger than that of the second outlet.

10. The spindle structure according to claim 1, wherein: the cover body is provided with a plurality of first channels which are annularly distributed on the cover body, and a concave ring groove is required to be arranged at the connecting position of the first channels and the first outlet to connect the first channels.