CN217315899U

CN217315899U - Novel spindle axis structure

Info

Publication number: CN217315899U
Application number: CN202220379388.0U
Authority: CN
Inventors: 陈亮; 李光中; 朱建国; 刘涛
Original assignee: Okada Precision Machinery Changzhou Co ltd
Current assignee: Okada Precision Machinery Changzhou Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-08-30
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a novel main shaft axle center structure, including the axle core, the center department of axle core is provided with well cavity to at cavity intracavity cross-under pull rod, the pole wall laminating of being provided with air lever and pull rod in the chamber wall of well cavity, axle core outer wall is located double-layered tool bit end cover and has the bearing group to be provided with the labyrinth ring in the double-layered tool bit end clearance of bearing group and axle core, the outer wall of bearing group cup joints the body and passes through the protecgulum fixed, be provided with the air ring between protecgulum and the axle core. The utility model discloses set up a plurality of bearings and make up the cutting force of increase main shaft to set up the push rod on the laminating wall of axle core and pull rod, further increase the stability of pull rod, two sets of breachs further block inside debris, fluid get into the main shaft under the effect of doing of gas port.

Description

Novel spindle axis structure

Technical Field

The utility model relates to a machine tool equipment technical field especially relates to a novel main shaft axle center structure.

Background

The machine tool spindle refers to a shaft which drives a workpiece or a cutter to rotate on the machine tool. The main shaft component is generally composed of a main shaft, a bearing, a transmission member (gear or pulley), and the like. The machine is mainly used for supporting transmission parts such as gears and belt wheels and transmitting motion and torque, such as a machine tool spindle; some are used to clamp a workpiece, such as a spindle. Most of machine tools have a spindle unit except for a planer, a broaching machine, and the like, which are linearly moved in main motion. The movement accuracy and structural rigidity of the spindle unit are important factors determining the machining quality and the cutting efficiency.

The suction when current main shaft is in the use often can inhale debris such as fluid in the main shaft clearance because of rotating to cause the damage of main shaft, the long-time use of pull rod in the axle core can be with the inner chamber wearing and tearing of axle core in addition, leads to the pull rod can not laminate completely in inside.

Disclosure of Invention

According to the technical problem to be solved, a novel spindle axis structure is provided.

In order to achieve the above object, the utility model discloses a novel main shaft axle center structure, including the axle core, the center department of axle core is provided with well cavity to at cavity intracavity cross-under pull rod, the pole wall laminating that is provided with air lever and pull rod in the intracavity of the chamber wall of well cavity, axle core outer wall is located double-layered tool bit end cover and has the bearing group to be provided with the labyrinth ring in the double-layered tool bit end clearance of bearing group and axle core, the outer wall of bearing group cup joints the body and passes through the protecgulum fixed, be provided with the air ring between protecgulum and the axle core.

Preferably, the gas pole is provided with 2 groups at least, and the group sets up with the group between the layering, and every group has 2 gas poles, and upper and lower layer gas pole sets up in a staggered way.

Preferably, the top of the air rod is provided with an arc-shaped top block, and the highest point of the arc-shaped top block exceeds the side wall of the hollow cavity of the shaft core.

Preferably, the bearing components are divided into an upper layer and a lower layer, the ultraprecise double-row cylindrical roller bearing is close to the end of the cutter clamping head, and the other layer is an ultraprecise angular contact ball bearing.

Preferably, the body is provided with an air inlet, an air passage of the air inlet is connected with an air passage in the front cover, and an outlet of the air passage of the front cover is connected with an air port of the air ring.

Preferably, the joint of the shaft core and the front cover as well as the air opening of the air ring is provided with an annular gap.

Preferably, the annular gap is in an inverted triangle shape.

Has the advantages that: the utility model discloses a novel main shaft axle center structure makes up the cutting force of increase main shaft through a plurality of bearings to set up the push rod on the laminating wall of axle core and pull rod, further increase the stability of pull rod, two sets of breachs further stop debris, fluid entering main shaft inside under the effect of doing of gas port.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic view of part a of the present invention.

In the figure: 1 is a front cover; 2 is a body; 3 is a shaft core; 4 is an air inlet; 5 is a gas ring; 6 is a labyrinth ring; 7 is an ultra-precise double-row cylindrical roller bearing; 8, an ultra-precise angular contact ball bearing; 9 is a gas rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

As shown in fig. 1 and 2, a novel spindle axis structure, including axle core 3, the center department of axle core 3 is provided with well cavity, and cross-under the cavity intracavity pull rod, be provided with the pole wall laminating of gas lever 9 and pull rod in the chamber wall of well cavity, the effect is under the condition of chamber wall wearing and tearing, can also be through the stability of gas lever 9 control pull rod, 3 outer walls of axle core are located double-layered tool bit end cover and have the bearing group, its effect can make the main shaft possess bigger cutting force, and be provided with labyrinth ring 6 in the double-layered tool bit end clearance of bearing group and axle core 3, reduce the entering of fluid, the outer wall of bearing group cup joints body 2 and fixes through protecgulum 1, be provided with gas ring 5 between protecgulum 1 and the axle core 3, it is isolated with fluid under the effect of gas ring 5.

Gas pole 9 is provided with 2 groups at least, and group between the layering setting, and every group has 2 gas poles 9, and upper and lower layer gas pole 9 is crisscross to be set up, compares collinear setting, and crisscross ejection is more firm.

The top of the air rod 9 is provided with an arc-shaped top block, the highest point of the arc-shaped top block exceeds the side wall of the cavity in the shaft core 3, the pull rod cannot be clamped by the arc when the pull rod enters, and the pull rod can be smoothly inserted.

The bearing component is divided into an upper layer and a lower layer, the ultraprecise double-row cylindrical roller bearing 7 is close to the end of the cutter clamping head, and the other layer is an ultraprecise angular contact ball bearing 8 which can bear axial load and radial load.

It has air inlet 4 to open on the body 2, and the air flue of air inlet 4 is connected with the air flue in the protecgulum 1, and the export of the air flue of protecgulum 1 is connected with the gas port of gas ring 5, thereby a plurality of air flue connection admit air and produce the air curtain, and the inside fluid that can not get into of protection main shaft.

The axle core 3 all is provided with annular breach with 5 gas port laminating departments of protecgulum 1 and gas ring, and annular breach is for falling three horn shapes, because axle core 3 has certain suction when rotating, and annular breach has certain buffer capacity this moment, in time admits air and blows out behind the fluid admission speed of slowing down.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are also included in the scope of the present invention.

Claims

1. The utility model provides a novel main shaft axle center structure, includes axle core (3), its characterized in that: the center department of axle core (3) is provided with well cavity to at cavity intracavity cross-under pull rod, the pole wall laminating of being provided with gas pole (9) and pull rod in the chamber wall of well cavity, axle core (3) outer wall is located double-layered sword head end cover and has the bearing group to be provided with labyrinth ring (6) in the double-layered sword head end clearance of bearing group and axle core (3), the outer wall of bearing group cup joints body (2) and fixes through protecgulum (1), be provided with gas ring (5) between protecgulum (1) and axle core (3).

2. The novel spindle hub structure of claim 1, wherein: the gas pole (9) are provided with 2 groups at least, and the group sets up with the group between the layering, and every group has 2 gas poles (9), and upper and lower layer gas pole (9) are crisscross to be set up.

3. A novel spindle hub structure according to claim 2, wherein: the top of the air rod (9) is provided with an arc-shaped top block, and the highest point of the arc-shaped top block exceeds the side wall of the hollow cavity of the shaft core (3).

4. The novel spindle hub structure of claim 1, wherein: the bearing component comprises an upper layer and a lower layer, an ultra-precise double-row cylindrical roller bearing (7) is arranged close to the end of the cutter clamping head, and an ultra-precise angular contact ball bearing (8) is arranged on the other layer.

5. The novel spindle hub structure of claim 1, wherein: the air inlet (4) is formed in the body (2), an air passage of the air inlet (4) is connected with an air passage in the front cover (1), and an outlet of the air passage of the front cover (1) is connected with an air port of the air ring (5).

6. The novel spindle hub structure of claim 1, wherein: and annular gaps are formed at the joint of the shaft core (3) and the air ports of the front cover (1) and the air ring (5).

7. A novel spindle hub structure according to claim 6, further comprising: the annular gap is in an inverted triangle shape.