CN210548161U

CN210548161U - High-performance electric spindle with waterproof structure

Info

Publication number: CN210548161U
Application number: CN201921701368.5U
Authority: CN
Inventors: 舒聪
Original assignee: Shenzhen Kairuite Precision Machinery Co Ltd
Current assignee: Shenzhen Kairuite Precision Machinery Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-05-19
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a high performance electricity main shaft with waterproof construction relates to electricity main shaft technical field. The high-performance electric spindle with the waterproof structure comprises a shell and a rear end cover, wherein the rear end cover is fixed on one side of the shell through a bolt, a cooling sleeve is sleeved on the inner wall of the shell, and the inner wall of the cooling sleeve is sleeved with a motor stator, a motor rotor is arranged in the motor stator, the inner wall of the motor rotor is sleeved with a shaft sleeve, a central shaft is sleeved on the inner wall of the shaft sleeve, a bearing sleeve is fixed on one side of the shell far away from the rear end cover through a bolt, and a bearing is sleeved on the inner wall of the bearing sleeve, a front end cover is fixed on the outer wall of one side of the bearing sleeve through a bolt, and the inner wall of the front end cover is sleeved with a rubber ring, the utility model effectively prolongs the path of flushing fluid entering the interior of the electric spindle, and then the holistic waterproof performance of reinforcing electricity main shaft, it is waterproof to compare the sealing washer of traditional simple formula, and waterproof performance promotes greatly, avoids the flush fluid to sputter the inside condition of infiltration again to the electricity main shaft outer wall.

Description

High-performance electric spindle with waterproof structure

Technical Field

The utility model relates to an electricity main shaft technical field specifically is a high performance electricity main shaft with waterproof construction.

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 in recent years. The main transmission system of the high-speed numerical control machine tool cancels belt wheel transmission and gear transmission. The main shaft of the machine tool is directly driven by the built-in motor, so that the length of a main transmission chain of the machine tool is shortened to zero, and zero transmission of the machine tool is realized. 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 the transmission system and the whole structure of the machine tool, so that the spindle unit can be manufactured.

The general lug connection tool bit of output or the cutter of electricity main shaft, tool bit or cutter are direct to mill the section bar, generally all can be equipped with washing unit and wash cutter and section bar and avoid the raise dust milling in milling the in-process lathe, and inside this in-process some flush fluid realization directly got into electricity main shaft along the output shaft of electricity main shaft, led to the fact the damage to internal motor, current electricity main shaft waterproofing mechanism is comparatively simple, and waterproof performance is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high performance electricity main shaft with waterproof construction 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 a high performance electricity main shaft with waterproof construction, includes shell and rear end cap, the rear end cap passes through the bolt fastening in shell one side, shell inner wall cover is equipped with the cooling jacket, and the cooling jacket inner wall cover is equipped with motor stator, the inside motor rotor that is equipped with of motor stator, motor rotor inner wall cover is equipped with the axle sleeve, and axle sleeve inner wall cover is equipped with the center pin, one side that the rear end cap was kept away from to the shell has the bearing housing through the bolt fastening, and bearing housing inner wall cover is equipped with the bearing, bearing housing one side outer wall has the front end housing through the bolt fastening, and front end housing inner wall cover is equipped with the rubber ring, the rubber ring inner wall is equipped with the bulge loop of equidistance distribution, and the center pin outer wall opens the ring channel that has with bulge loop looks adaptation, the center pin.

Preferably, a through groove is formed in the center of the front end cover, the inner wall of the through groove is sleeved with the rubber ring, and the central shaft is limited in the through groove.

Preferably, the shell, the bearing sleeve and the front end cover are provided with threaded holes distributed at equal intervals along the outer edge, and the inner wall of each threaded hole is screwed with the same fixing bolt.

Preferably, the outer wall of one side of the shell is provided with a first annular groove close to the bearing sleeve, the outer wall of the first annular groove is bonded with a first sealing ring, and one side of the bearing sleeve is provided with a first convex edge matched with the first annular groove.

Preferably, a second annular groove is formed in the outer wall of one side of the bearing sleeve, which is close to the front end cover, a second sealing ring is bonded to the outer wall of the second annular groove, and a second convex edge matched with the second annular groove is formed in one side of the front end cover.

Preferably, one side of the rubber cap, which is close to the front end cover, is provided with a side ring, the other side of the rubber cap is provided with a mounting ring, and the mounting ring is fixed on the outer wall of the central shaft through screws.

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

(1) a high performance electricity main shaft with waterproof construction, the rubber cap rotates along with the center pin, rubber cap and center pin position zonulae occludens, prevent effectively that the flush fluid from getting into electricity main shaft inside along the center pin outer wall, when a small part flush fluid gets into via the clearance between rubber cap and the front end housing, at first need cut the fender through the first part of side ring, need cut the fender effect through rubber ring and bulge loop afterwards and just can get into electricity main shaft inside, through the waterproof sealing part of these two parts, effectively prolong the route that the flush fluid got into electricity main shaft inside, and then strengthen the holistic waterproof performance of electricity main shaft, compare the simple formula sealing washer of tradition waterproof, waterproof performance promotes greatly, shell and bearing housing connecting portion are equipped with first sealing washer, bearing housing and front end housing connecting portion are equipped with the second sealing washer, through the setting of first sealing washer and second sealing washer, the waterproof performance of the whole outer wall of the electric spindle is improved, and the situation that flushing liquid is splashed to the outer wall of the electric spindle and permeates into the inside is avoided.

(2) The utility model provides a high performance electricity main shaft with waterproof construction, the utility model discloses electricity main shaft is when equipment and dismantlement, connects through same fixing bolt between shell, bearing housing and the front end housing, and this makes the equipment more simple and convenient with the dismantlement operation, makes things convenient for the production and the maintenance of electricity main shaft, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of the present invention;

fig. 2 is a partial enlarged view of fig. 1 according to the present invention;

fig. 3 is a schematic structural diagram of the present invention.

In the figure: the motor comprises a shell 1, a cooling jacket 2, a motor stator 3, a motor rotor 4, a shaft sleeve 5, a central shaft 6, a bearing sleeve 7, a bearing 8, a front end cover 9, a rubber ring 10, a convex ring 11, a rubber cap 12, a side ring 13, a mounting ring 14, a first sealing ring 15, a second sealing ring 16, a fixing bolt 17 and a rear end cover 18.

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. 1-3, the present invention provides a technical solution: a high-performance electric spindle with a waterproof structure comprises a shell 1 and a rear end cover 18, wherein the rear end cover 18 is fixed on one side of the shell 1 through bolts, the outer wall of the rear end cover 18 is provided with an air inlet pipe which is externally connected with an air pump, the inner wall of the shell 1 is sleeved with a cooling sleeve 2, the cooling sleeve 2 is provided with an oil inlet pipe and an oil outlet pipe, the oil inlet pipe and the oil outlet pipe are externally connected with a circulating oil pump, the inner wall of the cooling sleeve 2 is sleeved with a motor stator 3, the motor stator 3 is externally connected with a power supply and a controller, a motor rotor 4 is arranged inside the motor stator 3, the inner wall of the motor rotor 4 is sleeved with a shaft sleeve 5, the inner wall of the shaft sleeve 5 is sleeved with a central shaft 6, one side of the shell 1 far away from the rear end cover 18 is fixed with a bearing sleeve 7 through bolts, the inner wall of the, the outer wall of the central shaft 6 is provided with an annular groove matched with the convex ring 11, one side of the outer wall of the central shaft 6, which is close to the front end cover 9, is provided with a boss, the outer wall of the boss is fixed with a rubber cap 12 through screws, the center of the front end cover 9 is provided with a through groove, the inner wall of the through groove is sleeved with a rubber ring 10, the central shaft 6 is limited in the through groove, the outer edges of the shell 1, the bearing sleeve 7 and the front end cover 9 are all provided with threaded holes distributed at equal intervals, the inner wall of the threaded hole is screwed with a same fixing bolt 17, the outer wall of one side of the shell 1, which is close to the bearing sleeve 7, is provided with a first annular groove, the outer wall of the first annular groove is bonded with a first sealing ring 15, one side of the bearing sleeve 7 is provided with a first convex edge matched with the first annular groove, the outer wall of one side of the bearing sleeve 7, a side ring 13 is arranged on one side of the rubber cap 12 close to the front end cover 9, a mounting ring 14 is arranged on the other side of the rubber cap 12, and the mounting ring 14 is fixed on the outer wall of the central shaft 6 through screws.

The working principle is as follows: when the electric spindle is powered on to work, the central shaft 6 rotates under the action of the motor stator 3 and the motor rotor 4, at the moment, the rubber cap 12 rotates along with the central shaft 6, the rubber cap 12 is tightly connected with the central shaft 6, washing liquid is effectively prevented from entering the electric spindle along the outer wall of the central shaft 6, when a small part of washing liquid enters through a gap between the rubber cap 12 and the front end cover 9, the washing liquid firstly needs to be blocked by the first part of the side ring 13 and then can enter the electric spindle through the blocking action of the rubber ring 10 and the convex ring 11, the path of the washing liquid entering the electric spindle is effectively prolonged through the waterproof sealing parts of the two parts, the integral waterproof performance of the electric spindle is further enhanced, compared with the traditional simple sealing ring, the waterproof performance is greatly improved, the first sealing ring 15 is arranged at the connecting part of the shell 1 and the bearing sleeve 7, the second sealing ring 16 is arranged at the connecting part of the bearing sleeve 7 and, through the setting of first sealing washer 15 and second sealing washer 16 for the waterproof performance of the whole outer wall of electricity main shaft obtains promoting, avoids the flush fluid to sputter to the inside condition of electricity main shaft outer wall reinfusion again, in addition, the utility model discloses electricity main shaft is when the equipment with dismantle, is connected through same fixing bolt 17 between shell 1, bearing housing 7 and the front end housing 9, and this makes the equipment more simple and convenient with the dismantlement operation, makes things convenient for the production and the maintenance of electricity main shaft, and the practicality is strong.

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. A high performance electric spindle with waterproof construction, includes shell (1) and rear end cap (18), its characterized in that: the rear end cover (18) is fixed on one side of the shell (1) through bolts, a cooling jacket (2) is sleeved on the inner wall of the shell (1), a motor stator (3) is sleeved on the inner wall of the cooling jacket (2), a motor rotor (4) is arranged inside the motor stator (3), a shaft sleeve (5) is sleeved on the inner wall of the motor rotor (4), a central shaft (6) is sleeved on the inner wall of the shaft sleeve (5), a bearing sleeve (7) is fixed on one side, far away from the rear end cover (18), of the shell (1) through bolts, a bearing (8) is sleeved on the inner wall of the bearing sleeve (7), a front end cover (9) is fixed on the outer wall of one side of the bearing sleeve (7) through bolts, a rubber ring (10) is sleeved on the inner wall of the front end cover (9), convex rings (11) are distributed on the inner wall of the rubber ring (10) at equal, the center pin (6) outer wall is equipped with the boss near front end housing (9) one side department, and the boss outer wall passes through the screw fixation and has rubber cap (12).

2. The high-performance electric spindle with a waterproof structure according to claim 1, wherein: a through groove is formed in the center of the front end cover (9), the inner wall of the through groove is sleeved with the rubber ring (10), and the central shaft (6) is limited in the through groove.

3. The high-performance electric spindle with a waterproof structure according to claim 1, wherein: the shell (1), the bearing sleeve (7) and the front end cover (9) are all provided with threaded holes distributed at equal intervals along the outer edge, and the inner wall of each threaded hole is connected with the same fixing bolt (17) in a threaded mode.

4. The high-performance electric spindle with a waterproof structure according to claim 1, wherein: the outer wall of one side of the shell (1) is provided with a first annular groove close to the bearing sleeve (7), the outer wall of the first annular groove is bonded with a first sealing ring (15), and one side of the bearing sleeve (7) is provided with a first convex edge matched with the first annular groove.

5. The high-performance electric spindle with a waterproof structure according to claim 1, wherein: the outer wall of one side of the bearing sleeve (7) is provided with a second annular groove close to the front end cover (9), the outer wall of the second annular groove is bonded with a second sealing ring (16), and one side of the front end cover (9) is provided with a second convex edge matched with the second annular groove.

6. The high-performance electric spindle with a waterproof structure according to claim 1, wherein: one side, close to the front end cover (9), of the rubber cap (12) is provided with a side ring (13), the other side of the rubber cap (12) is provided with a mounting ring (14), and the mounting ring (14) is fixed on the outer wall of the central shaft (6) through screws.