CN203738033U

CN203738033U - Concealed spindle

Info

Publication number: CN203738033U
Application number: CN201120036131.7U
Authority: CN
Inventors: 张荣升; 张荣峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-01
Filing date: 2011-02-11
Publication date: 2014-07-30
Anticipated expiration: 2021-02-11
Also published as: TWM406485U

Abstract

A built-in spindle comprises a spindle unit and a power source, wherein the spindle unit can rotate along the axis direction, and both ends of the spindle unit are provided with a working end and a combining end on the same axis, the working end is provided with a first bearing, and the combining end is provided with a second bearing; the power source is arranged at the combining end and is positioned at the other side of the second bearing relative to the first bearing. Therefore, the structure of the built-in spindle is simplified, the rotating shaft unit and the power source can be manufactured and assembled in a simpler and more convenient mode, and the production cost is further reduced.

Description

Built-in main shaft

Technical field

The utility model is the main shaft device about a kind of precision machinery, particularly relevant with the built-in main shaft of one.

Background technology

General main shaft device is the important mechanism that for example, drives machined object or cutter rotation in precision machinery (precision machinery of panel cutting machine, PCB drilling machine and various main shaft classes), according to the difference in structure and the kind of drive, main shaft device can be divided into gear type, belt-type, direct type and the kind such as built-in haply.Wherein CD-ROM drive motor and axle are arranged at spindle drum inside by built-in main shaft, and have, volume is little, transmission efficiency is high, inertia is low, noise is low, it is low to vibrate and precision advantages of higher.

But the built-in main shaft of prior art is all the position that CD-ROM drive motor is arranged to axle body portion, for example TaiWan, China patent No. 428842 " built-in motor formula grinding spindle " and No. I306425 " embedded motor main axle ".Such design is because the space configuration between shell, CD-ROM drive motor and axle needs quite high precision, and in manufacture, the patient tolerance of institute is little, also therefore needs higher production cost.

Utility model content

Main purpose of the present utility model is to provide a kind of simple in structure, easy to assembly and built-in main shaft that can effectively reduce production costs.

For reaching aforementioned object, built-in main shaft provided by the utility model, include a rotating shaft unit and a power source, wherein this rotating shaft unit can be rotated along axis direction, and the two ends of this rotating shaft unit are provided with a working end and a binding end in coaxial line, this working end has a clutch shaft bearing, and this binding end has one second bearing; This power source is located at this binding end and is positioned at this second bearing opposite side of this clutch shaft bearing relatively.

The beneficial effects of the utility model are: it can simplify the structure of this built-in main shaft, and this rotating shaft unit and this power source are manufactured and assembled to mode more simply and easily, and then reduces production costs.

Relevant detailed structure of the present utility model, feature, assembling mode or occupation mode will be described in follow-up detailed description.But, in the utility model field, having and conventionally know that the knowledgeable should be able to understand, these detailed descriptions and the cited specific embodiment of enforcement the utility model, only for the utility model is described, not in order to limit patent claim of the present utility model.

Brief description of the drawings

By the embodiment by cited, coordinate the accompanying drawing of enclosing below, describe technology contents of the present utility model and feature in detail, wherein:

Fig. 1 is the profile of the utility model one preferred embodiment;

Fig. 2 is the assembly exploded view of the first figure; And

Fig. 3 is the assembling schematic diagram of this preferred embodiment of the utility model.

Detailed description of the invention

As shown in Figures 1 and 3, built-in main shaft 10 provided by the utility model is to be installed on a toolroom machine 1, and wherein this built-in main shaft 10 includes a rotating shaft unit 20 and a power source 30.

This rotating shaft unit 20 can be carried out rotation work along axis direction, and wherein one end of this rotating shaft unit 20 is a working end 201, and this working end 201 is positioned on axis, and can be in order to install workpiece, process tool, fixture or mould etc., but not as limit.The other end of this rotating shaft unit 20 is a binding end 202, this binding end 202 is positioned on axis, in order to these power source 30 combinations, and as shown in Figures 1 and 2, this rotating shaft unit 20 includes an outer shaft 21, an axle 22, a clutch shaft bearing 231, one second bearing 232, a front gland 24, a preload component 25, a dustproof gland 26 and a bearing fixture 27.

This outer shaft 21 has an axis hole 211, and this axis hole 211 is formed with first opening 214 and that is positioned at this working end 201 and is positioned at the second opening 215 of this binding end 202 in the two ends of this outer shaft 21; And this axis hole 211 has the first footpath section 212 of this first opening 214 of a connection and the second footpath section 213 of this second opening 215 of connection; And the interior sidewall surface of this second footpath section 213 also has a flange 214.

This axle 22 can be located to axial rotation this axis hole 211, and the two ends of this axle 22 are formed with respectively a first end 221 near this working end 201 and a second end 222 near this binding end 202, wherein this first end 221 is positioned at this first footpath section 212, this the second end 222 can be divided into again medial segment 222a and projection and stretching section 222b, this medial segment 222a is positioned at this second footpath section 213, and this projection 222b protrudes from this second opening 215.

This clutch shaft bearing 231 and this second bearing 232 are all installed between this outer shaft 21 and this axle 22, and wherein this clutch shaft bearing 231 is located between this first end 221 and this first footpath section 212; This second bearing 232 is located between this medial segment 222a and this second footpath section 213.

This front gland 24 is arranged at this outer shaft 21 and has one end of this first opening 214, and this front gland 24 has a pressure section 241, and this pressure section 241 is resisted against this clutch shaft bearing 231, to fix this clutch shaft bearing 231.

This preload component 25 is arranged between this medial segment 222a and this second footpath section 213, and between this second bearing 232 and this flange 214.This preload component 25 includes pre-gland 251 and an elastic component 252, and one end of this pre-gland 251 is butted on this second bearing 232, and the other end of this pre-gland 251 is butted on one end of this elastic component 252, and the other end of this elastic component 252 is butted on this flange 214.

This dustproof gland 26 is arranged between this first end 221 and this front gland 24, to seal this first opening 214.

27 of this bearing fixtures are arranged between this medial segment 222a and this outer shaft 22, to fix this second bearing 232, and seal this second opening 215.

30 of this power sources are arranged at the binding end 202 of this rotating shaft unit 20.This power source 30 includes an axle sleeve 31, a rotor 32, wholeheartedly neck bush 322, a stator 33, a cover piece 34 and a coolant jacket 35.One end of this axle sleeve 31 is connected in this outer shaft 21 near these the second opening 215 places, and the interior sidewall surface 311 of this axle sleeve 31 is around forming an accommodation space 312, the projection and stretching section 222b of this second end 222 is positioned at this accommodation space 312, this rotor 32 is around being arranged at the wholeheartedly outer peripheral face of neck bush 322, this axle lining 322 is locked on this projection and stretching section 222b via this mandrels bolt 324, and make this rotor 32 be located at this second end 222, and allow sheathed this second end 222 that is fixed on of this axle lining 322.In this axle lining 322, have an axle combined hole 326, this axle combined hole 326 shrinks gradually and is formed with a tapering toward end direction, to increase the frictional force between this axle lining 322 and this projection and stretching section 322b.This stator 33 is to should rotor 32 and be arranged at the interior sidewall surface 311 of this axle sleeve 31.This cover piece 34 is located at the other end of this axle sleeve 31, to seal this axle sleeve 31.This coolant jacket 35 is around being arranged at this axle sleeve 31, the temperature while running to reduce this power source 30.

By above-mentioned technical characterictic, built-in main shaft provided by the utility model is arranged at power source the binding end of rotating shaft unit, significantly simplify thus the structure of built-in main shaft, and can use mode more simply and easily, carry out manufacture and the assembling of rotating shaft unit and power source, also therefore can effectively reduce production costs.

Should be noted that at this, the detailed description that more than coordinates accompanying drawing to do, it is only the embodiment providing for technology contents of the present utility model and feature are described, all people in the utility model field with general common knowledge, after understanding technology contents of the present utility model and feature, in under spirit of the present utility model, the economization of all simple modification, replacement or the member of doing, all should belong in the scope that the utility model claim discloses.

Claims

1. a built-in main shaft, is characterized in that, includes:

One rotating shaft unit that can rotate along axis direction, the two ends of this rotating shaft unit are provided with a working end and a binding end in coaxial line, and this working end has a clutch shaft bearing, and this binding end has one second bearing; And

One power source, is located at this binding end and is positioned at this second bearing opposite side of this clutch shaft bearing relatively.

2. built-in main shaft as claimed in claim 1, it is characterized in that, wherein this rotating shaft unit includes an outer shaft and an axle, and this outer shaft has an axis hole, and this axis hole is formed with first opening and that is positioned at this working end and is positioned at the second opening of this binding end in the two ends of this outer shaft; This axle is located at this axis hole rotationally, and the two ends of this axle are formed with respectively a first end near this working end and a second end near this binding end.

3. built-in main shaft as claimed in claim 2, it is characterized in that, wherein this power source includes an axle sleeve, a rotor and a stator, this axle sleeve is located at this outer shaft and is approached this second opening part, and the interior sidewall surface of this axle sleeve is around forming an accommodation space, and this second end is positioned at this accommodation space; This rotor is located at this second end; Relatively this rotor and be located at the interior sidewall surface of this axle sleeve of this stator.

4. built-in main shaft as claimed in claim 3, is characterized in that, wherein this axle sleeve also has the cover piece of this accommodation space of sealing.

5. built-in main shaft as claimed in claim 3, is characterized in that, wherein this power source also has a coolant jacket, and this coolant jacket is around being arranged at this axle sleeve, the temperature when reducing this power source running.

6. built-in main shaft as claimed in claim 3, is characterized in that, wherein this power source also includes wholeheartedly neck bush, and this rotor is located at the outer peripheral face of this axle lining, and sheathed this second end that is fixed on of this axle lining.

7. built-in main shaft as claimed in claim 6, is characterized in that, wherein this axle lining has an axle combined hole, and the aperture of this axle combined hole is shunk gradually and is formed with a tapering toward end direction.

8. built-in main shaft as claimed in claim 2, is characterized in that, wherein this axis hole has the first footpath section of this first opening of a connection, and the second footpath section of this second opening of connection; This clutch shaft bearing is located between this first footpath section and this first end, and this second bearing is located between this second footpath section and this second end.

9. built-in main shaft as claimed in claim 8, is characterized in that, also includes a front gland, and this front gland is located at this outer shaft near this first opening part, and this front gland has a pressure section, and this pressure section is butted on this clutch shaft bearing.

10. built-in main shaft as claimed in claim 9, is characterized in that, also includes the dustproof gland of this first opening of a sealing, and this dustproof gland is located between this first end and this front gland.

11. built-in main shafts as claimed in claim 8, is characterized in that, also include a preload component, and this preload component is located between this second footpath section and this second end.

12. built-in main shafts as claimed in claim 11, it is characterized in that, wherein the interior sidewall surface of this second footpath section also has a flange, and this preload component also includes an elastic component and a pre-gland, one end of this elastic component is butted on this flange, the other end of this elastic component is butted on one end of this pre-gland, and the other end of this pre-gland is butted on this second bearing.

13. built-in main shafts as claimed in claim 11, is characterized in that, also include a bearing fixture, and this bearing fixture is located at this second end and this outer between centers, to fix this second bearing, and seal this second opening.