CN202052948U

CN202052948U - Shaft core assembly of air floatation high-speed electric spindle

Info

Publication number: CN202052948U
Application number: CN2011200853449U
Authority: CN
Inventors: 汤秀清
Original assignee: Guangzhou Haozhi Electromechanical Co Ltd
Current assignee: Guangzhou Haozhi Electromechanical Co Ltd
Priority date: 2011-03-28
Filing date: 2011-03-28
Publication date: 2011-11-30
Anticipated expiration: 2021-03-28

Abstract

The utility model relates to a shaft core assembly of an air floatation high-speed electric spindle, and particularly to a shaft core which is used for machining an air floatation high-speed electric spindle of a machine tool. According to the utility model, motor rotors (2) are inserted at external walls of the middle part of a shaft body (1). The outer walls of the motor rotors (2) are aligned with the middle outer walls of the shaft body (1). The shaft core assembly of the air floatation high-speed electric spindle has the following advantages: reasonable and compact structure, high precision, high convenience in mounting an assembly in the through hole of the shaft core, improved bearing condition between the assemblies, easy realization for cutter pulling and cutter detachment, ensured mounting precision, long service life, easy popularization and application.

Description

A kind of axle core component of air floated high speed electric mandrel

Technical field

The utility model relates to a kind of machining equipment, specifically a kind ofly is used for the axle core that the mechanical processing machine air floated high speed electric mandrel uses.

Background technology

In the prior art, the axle core construct that air floated high speed electric mandrel is used is unreasonable, rotor is arranged on the axis body outside, cause the easy and rotor friction of axis body, cause the frequent replacing of a core needs, even also can influence the stressed of pull bar, pulling claw etc. after the assembling, the function that does not realize broaching tool, unloads cutter, and shortcoming such as lack service life.

Summary of the invention

The utility model relates to a kind of axle core component of air floated high speed electric mandrel, it is rational in infrastructure, compact, the precision height, assembly in the order axle core through hole is easy for installation, the stressing conditions of assembly and inter-module is improved, realize broaching tool easily, unload the cutter function, can guarantee assembly precision, long service life is convenient to promote and use.

The utility model technical solution is on the basis of existing axis body (1), gland (3), sliding sleeve (4), butterfly spring (5), base of the carrier head (6), annular convex (7), chuck (8) and support zone (9), the utility model is equipped with rotor (2) particularly in the middle part outer wall camphane of axis body (1), and described rotor (2) outer wall and axis body (1) middle part outer wall flush.

During the utility model work, meet pressure air by the main shaft feeding, locate to produce radial suspension force at axis body (1) radial support position (9), annular convex (7) support zone has up and down also produced axial suspension power, this moment, the axle core was in suspended state, reduce friction the biglyyest, direct camphane copper mouse cage is made rotor (2) on the center section part external cylindrical surface of axis body, when three-phase current feeds the three-phase symmetric winding of stator, fixed, produce a rotating excitation field in the rotor airgap, thereby the moving machining of carrying out of driving shaft core rotation, the rearward end of gland (3) is provided with internal thread and is connected with chuck (8) external screw thread, after under cylinder action, promoting compression butterfly spring (5) pressurized, the pulling force of chuck (8) is laid down, chuck (8) recovers outside tension force, can realize unloading the cutter function, after cylinder air pressure is laid down, butterfly spring (5) resets chuck (8) is held, this moment, collet taper was shunk by base of the carrier head (6) taper hole, cutter is tightly blocked by chuck (8) claw, realized dress cutter function, axle despot's assembly sliding sleeve (4) is a high-temperature resistance plastice spare, locate to increase oil-way storage lubricating oil at axle despot's assembly sliding sleeve (4) simultaneously, reduce friction as far as possible, make whole motion more smooth and easy, improve cylinder and main shaft operating efficiency.

Advantage of the present utility model is:

1, the loading and unloading cutter is convenient;

2, high efficiency improves the axle core life-span,

3, processing is simple, the operating reliability height;

4, axle core size is less, starts inertia and reduces, and the revolution height can satisfy high at a high speed, precision processing.

Description of drawings

Fig. 1 is a profile construction schematic diagram of the present utility model.

The specific embodiment

According to shown in Figure 1, the utility model is on the basis of existing axis body 1, gland 3, sliding sleeve 4, butterfly spring 5, base of the carrier head 6, annular convex 7, chuck 8 and support zone 9, the middle part outer wall camphane of axis body 1 is equipped with rotor 2, and described rotor 2 outer walls and axis body 1 middle part outer wall flush.

Claims

1. the axle core component of an air floated high speed electric mandrel, it has comprised axis body (1), gland (3), sliding sleeve (4), butterfly spring (5), base of the carrier head (6), annular convex (7), chuck (8) and support zone (9), the middle part outer wall camphane that it is characterized in that axis body (1) is equipped with rotor (2), and described rotor (2) outer wall and axis body (1) middle part outer wall flush.