阅读说明：本技术 一种精密高速自动换刀电主轴 (Precise high-speed automatic tool changing electric spindle ) 是由 沈福兴 袁春凤 余国乐 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种精密高速自动换刀电主轴,包括密封套、机壳、转子轴、端盖、后拼帽、连接座、拉杆、缸体和油缸盖；所述机壳内部中空,拉杆安装于机壳内,转子轴安装于拉杆上,转子轴上安装有线圈；所述拉杆一端安装有拉爪,且置于转子轴内；所述转子轴一端安装有隔圈,所述隔圈的两侧均安装有轴承,靠近线圈的轴承一侧设置有垫圈；所述端盖安装于机壳的另一端,端盖内安装有轴承座；所述轴承座内设置有一个以上的轴承,一个以上的轴承安装于转子轴上；所述后拼帽上设置有轴承座后盖,且后拼帽安装于转子轴的另一端且位于轴承座内。本发明采用多层迷宫,并且利用气压导向,保证中心出水使用正常,无摩擦,经久耐用。(The invention discloses a precise high-speed automatic tool changing motorized spindle which comprises a sealing sleeve, a shell, a rotor shaft, an end cover, a rear splicing cap, a connecting seat, a pull rod, a cylinder body and an oil cylinder cover, wherein the shell is fixedly connected with the end cover; the inner part of the shell is hollow, the pull rod is arranged in the shell, the rotor shaft is arranged on the pull rod, and the rotor shaft is provided with a coil; one end of the pull rod is provided with a pull claw and is arranged in the rotor shaft; a space ring is arranged at one end of the rotor shaft, bearings are arranged on two sides of the space ring, and a gasket is arranged on one side of the bearing close to the coil; the end cover is arranged at the other end of the shell, and a bearing seat is arranged in the end cover; more than one bearing is arranged in the bearing seat and is arranged on the rotor shaft; the rear splicing cap is provided with a bearing seat rear cover, and the rear splicing cap is arranged at the other end of the rotor shaft and is positioned in the bearing seat. The invention adopts a multilayer labyrinth and utilizes air pressure for guiding, thereby ensuring that the central effluent is normally used, has no friction and is durable in use.)

1. The utility model provides a precision high-speed automatic tool changing electricity main shaft which characterized in that: the device comprises a sealing sleeve (2), a machine shell (7), a rotor shaft (9), an end cover (11), a rear split cap (14), a connecting seat (15), a pull rod (16), a cylinder body (20) and an oil cylinder cover (22);

the machine shell (7) is hollow, the pull rod (16) is installed in the machine shell (7), the rotor shaft (9) is installed on the pull rod (16), and the coil (8) is installed on the rotor shaft (9); one end of the pull rod (16) is provided with a pull claw (24) and is arranged in the rotor shaft (9); a space ring (5) is installed at one end of the rotor shaft (9), bearings (4) are installed on two sides of the space ring (5), and a gasket (6) is arranged on one side, close to the coil (8), of each bearing (4); the end cover (11) is arranged at the other end of the shell (7), and a bearing seat (23) is arranged in the end cover (11); more than one bearing (4) is arranged in the bearing seat (23), and the more than one bearing is arranged on the rotor shaft (9); a bearing seat rear cover (13) is arranged on the rear splicing cap (14), and the rear splicing cap (14) is arranged at the other end of the rotor shaft (9) and is positioned in the bearing seat (23); the sealing sleeve (2) is arranged at one end of the casing (7), the sealing sleeve (2) is provided with the sealing cover (1), the connecting seat (15) is arranged at the other end of the casing (7), and the other end of the pull rod (16) is arranged in the connecting seat (15).

2. The precise high-speed automatic tool changing electric spindle according to claim 1, characterized in that: the other end of the connecting seat (15) is provided with a water throwing disc (18); the water throwing disc (18) is provided with a copper ring (19), and the cylinder body (20) is arranged at the other end of the connecting seat (15); the oil cylinder cover (22) is provided with a piston (21), and the oil cylinder cover (22) is arranged on the cylinder body (20) through the piston (21).

3. The precise high-speed automatic tool changing electric spindle according to claim 1, characterized in that: a waterproof air seal ring (17) is arranged between the connecting seat (15) and the water throwing disc (18), and a copper ring (19) is arranged on the water throwing disc (18); an air seal ring (3) is arranged in the seal sleeve.

4. The precise high-speed automatic tool changing electric spindle according to claim 1, characterized in that: the pull rod (16) is provided with a spacer ring (10), and a retainer (12) is arranged at the joint of the bearing seat (23) and the end cover (11).

5. The precise high-speed automatic tool changing electric spindle according to claim 1, characterized in that: a first overflow hole (26) and a second overflow hole (27) are formed in the connecting base (15), and a diversion water tank (30) is arranged in the connecting base (15); a middle water inlet (28) is formed in the oil cylinder cover (22), and a gap exists at the joint of the oil cylinder cover (22) and the pull rod (16); the water throwing disc (18) is provided with an inverse spiral water blocking and overflowing structure (29).

6. The precise high-speed automatic tool changing electric spindle according to claim 1, characterized in that: the tool handle (25) is arranged in the rotor shaft (9), and the tail end of the tool handle (25) is arranged on the pulling grab (24).

Technical Field

The invention relates to the field of machinery, in particular to a precise high-speed automatic tool changing motorized spindle.

Background

The existing high-speed rotating joint is sealed by means of contact of two ceramic surfaces, the rotation ratio is stable at low speed, but when the high-speed rotating joint is applied to the working condition of high-speed cutting and grinding, the vibration of a high-speed spindle is large due to rotation, the ceramic surfaces are easy to wear, the rotating head is leaked, the whole spindle is scrapped, and the service life is short.

Disclosure of Invention

The invention aims to solve the technical problem that a multi-layer labyrinth is adopted, and air pressure guiding is utilized to ensure that central effluent is normally used, has no friction and is durable.

The precise high-speed automatic tool changing electric spindle is realized by the following technical scheme: the device comprises a seal sleeve, a shell, a rotor shaft, an end cover, a rear splicing cap, a connecting seat, a pull rod, a cylinder body and an oil cylinder cover;

the interior of the shell is hollow, the pull rod is arranged in the shell, the rotor shaft is arranged on the pull rod, and the rotor shaft is provided with a coil; one end of the pull rod is provided with a pull claw and is arranged in the rotor shaft; a space ring is arranged at one end of the rotor shaft, bearings are arranged on two sides of the space ring, and a gasket is arranged on one side of the bearing close to the coil; the end cover is arranged at the other end of the shell, and a bearing seat is arranged in the end cover; more than one bearing is arranged in the bearing seat and is arranged on the rotor shaft; the rear splicing cap is provided with a bearing seat rear cover, is arranged at the other end of the rotor shaft and is positioned in the bearing seat; the seal cover is installed in casing one end, installs sealed lid on the seal cover, and the connecting seat is installed in the casing other end, and the other end of pull rod sets up in the connecting seat.

As the preferred technical scheme, a water throwing disc is arranged at the other end of the connecting seat; the water throwing disc is provided with a copper ring, and the cylinder body is arranged at the other end of the connecting seat; the oil cylinder cover is provided with a piston and is arranged on the cylinder body through the piston.

As a preferred technical scheme, a waterproof air seal ring is arranged between the connecting seat and the water throwing disc, and a copper ring is arranged on the water throwing disc; an air seal ring is arranged in the seal sleeve.

As the preferred technical scheme, a spacer ring is installed on the pull rod, and a retainer is arranged at the joint of the bearing seat and the end cover.

As a preferred technical scheme, a first overflow hole and a second overflow hole are arranged on the connecting seat, and a diversion water tank is arranged in the connecting seat; the oil cylinder cover is provided with a middle water inlet, and a gap exists at the joint of the oil cylinder cover and the pull rod; the water throwing disc is provided with a reverse spiral water overflowing preventing structure.

As the preferred technical scheme, the tool shank is arranged in the rotor shaft, and the tail end of the tool shank is arranged on the pulling claw.

The invention has the beneficial effects that: the invention adopts a multilayer labyrinth and utilizes air pressure for guiding, thereby ensuring that the central effluent is normally used, has no friction and is durable in use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

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

fig. 3 is a schematic cross-sectional structure of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-3, the precise high-speed automatic tool changing motorized spindle of the present invention comprises a sealing sleeve 2, a casing 7, a rotor shaft 9, an end cover 11, a rear split cap 14, a connecting seat 15, a pull rod 16, a cylinder body 20 and an oil cylinder cover 22;

the machine shell 7 is hollow, the pull rod 16 is arranged in the machine shell 7, the rotor shaft 9 is arranged on the pull rod 16, and the coil 8 is arranged on the rotor shaft 9; one end of the pull rod 16 is provided with a pull claw 24 and is arranged in the rotor shaft 9; a space ring 5 is arranged at one end of the rotor shaft 9, bearings 4 are arranged on two sides of the space ring 5, and a gasket 6 is arranged on one side of each bearing 4 close to the coil 8; the end cover 11 is arranged at the other end of the machine shell 7, and a bearing seat 23 is arranged in the end cover 11; more than one bearing 4 is arranged in the bearing seat 23, and the more than one bearing is arranged on the rotor shaft 9; the rear splicing cap 14 is provided with a bearing seat rear cover 13, and the rear splicing cap 14 is arranged at the other end of the rotor shaft 9 and is positioned in the bearing seat 23; the sealing sleeve 2 is arranged at one end of the machine shell 7, the sealing cover 1 is arranged on the sealing sleeve 2, the connecting seat 15 is arranged at the other end of the machine shell 7, and the other end of the pull rod 16 is arranged in the connecting seat 15.

In this embodiment, the other end of the connecting seat 15 is provided with a water throwing disc 18; the water throwing disc 18 is provided with a copper ring 19, and the cylinder body 20 is arranged at the other end of the connecting seat 15; the cylinder head 22 is provided with a piston 21, and the cylinder head 22 is attached to the cylinder block 20 via the piston 21.

In this embodiment, a waterproof sealing ring 17 is arranged between the connecting seat 15 and the water throwing disc 18, and a copper ring 19 is arranged on the water throwing disc 18; an air seal ring 3 is arranged in the seal sleeve.

In the embodiment, the internal waterproof mechanism consists of a pull rod 16, a waterproof sealing ring 17, a water throwing disc 18 and a copper ring, and the air-sealed air inlet enables air to rotate circumferentially in the groove in the tangential direction of the groove and has a uniform air-sealed air curtain on the whole circumference; the direction of the gas is determined by the gap difference when the gas is discharged from the gas seal; outside, the air seal chamber further makes the air curtain that the back-off formula labyrinth mechanism clearance formed more even.

In this embodiment, the spacer ring 10 is installed on the pull rod 16, and the retainer 12 is installed at the joint of the bearing seat 23 and the end cover 11.

In this embodiment, the connecting base 15 is provided with a first overflow hole 26 and a second overflow hole 27, and the connecting base 15 is provided with a diversion water tank 30; the oil cylinder cover 22 is provided with a middle water inlet 28, and a gap exists at the joint of the oil cylinder cover 22 and the pull rod 16; the water throwing disc 18 is provided with an inverse spiral water overflowing preventing structure 29; the multi-outlet water drainage and water benefiting and water proofing first-layer drainage outlet adopts a rotary tangent guide drainage design, and the spindle is used for high-speed water-gas mixing.

In this embodiment, the tool shank 25 is disposed in the rotor shaft 9, and the tail end of the tool shank 25 is mounted on the pulling claw 24.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.