CN2801342Y - Main shaft device of front end driving precision lathe - Google Patents

Main shaft device of front end driving precision lathe Download PDF

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Publication number
CN2801342Y
CN2801342Y CN 200520079045 CN200520079045U CN2801342Y CN 2801342 Y CN2801342 Y CN 2801342Y CN 200520079045 CN200520079045 CN 200520079045 CN 200520079045 U CN200520079045 U CN 200520079045U CN 2801342 Y CN2801342 Y CN 2801342Y
Authority
CN
China
Prior art keywords
mandrel
ring
bearing
spacer
main shaft
Prior art date
Application number
CN 200520079045
Other languages
Chinese (zh)
Inventor
邵平列
郝常礼
田炳忠
Original Assignee
西安北村精密机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西安北村精密机械有限公司 filed Critical 西安北村精密机械有限公司
Priority to CN 200520079045 priority Critical patent/CN2801342Y/en
Application granted granted Critical
Publication of CN2801342Y publication Critical patent/CN2801342Y/en

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Abstract

The utility model relates to a mainshaft device of a front end driving precision machine tool, which comprises a basic mainshaft unit and a discharge mechanism, wherein bearings are arranged between the front end of a sleeve barrel and a mandrel and the rear end of the sleeve barrel and the mandrel, an outer ring of a front end bearing is fixed to the sleeve barrel by a front flange through screw nails, an inner ring is locked on a mandrel by pinch nuts through a spacer sleeve, the inner side of an inner ring of a rear end bearing is connected with the spacer sleeve, the outer side of the inner ring of the rear end bearing is connected with an encoder wheel and is locked on the mandrel by the pinch nuts, and a rear flange is fixed to the sleeve barrel through the screw nails; a discharge shell body is connected with the sleeve barrel through the screw nails, a driving wheel is supported on the discharge shell body and a front flange through the bearings, a spacer ring is arranged between the driving wheel and the mandrel, and flat keys are used for the connection of the driving wheel and the spacer ring and the connection of the mandrel and the spacer ring. When drive components need replacing, only the discharge shell body needs demounting, the mainshaft unit does not need demounting, and then, the drive components can be replaced. The utility model has the advantages of cabinet and compact structure and easy installation, repair and adjustment; at the same time, cost can be effectively reduced when the utility model is applied to a mainshaft movement type precision machine tool.

Description

Front-end driven precision machine tool main shaft device

Affiliated technical field

The utility model relates to main axle moving type lathe, more precisely relates to front-end driven precision machine tool main shaft device.

Background technology

At present, known main axle moving type fine turning lathe main shaft drives mode is that electric main shaft, spindle motor rear end drive and middle the driving.The electricity main shaft has high rotating accuracy and stability because of adopting motor and the incorporate structure of machine tool chief axis, is used for main axle moving type fine turning lathe, lathe general structure compact and reasonable, but lathe manufacturing and maintenance cost height.The main shaft that spindle motor drives, drive disk assembly is delivered to load on the main shaft in continuous variation when working because of lathe, influence the rotating accuracy and the stationarity of main shaft, this type of main shaft all adopts the rear end to drive and middle the driving, can weaken drive disk assembly like this and be delivered to load change on the main shaft, thereby guarantee the high manufacturing accuracy of main shaft the rotating accuracy of front-end of spindle and stationarity influence.Pack in the lathe headstock with a complete unit during rear end drive shaft general assembly, so not only guaranteed the assembly precision of principal spindle of machine tool, and be easy to install and the maintenance adjustment, being used for main axle moving type fine turning lathe but exist, lathe general structure layout is the defective of exquisite compactness not.Each main shaft part is finished assembling during middle drive shaft general assembly in lathe headstock, and lathe general structure layout relative compact is reasonable like this, but exists when changing drive disk assembly, and need be taken main shaft apart, are not easy to keep in repair the defective of adjustment.

Summary of the invention

Goal of the invention of the present utility model is in order to overcome in the main axle moving type fine turning lathe, the lathe of the lathe cost height of existing electric main shaft, the inexquisite compactness of lathe general structure layout of rear end drive shaft and middle drive shaft is not easy to keep in repair the problem of adjustment, a kind of compact conformation is provided, the precision height, cost is low, be easy to install and maintenance is adjusted, and make the exquisite compact front-end driven precision machine tool main shaft device of main axle moving type fine turning lathe general structure.

The technical scheme that realizes goal of the invention is: comprise a basic main axle unit and drive discharge mechanism, before sleeve, be provided with bearing between rear end and the mandrel, the outer ring of preceding end bearing is fixed on the sleeve by screw by forward flange, inner ring is locked on the mandrel by spacer by locking nut, the inner ring of rear end bearing is inboard to join with spacer, the outside joins with encoder wheel and is locked on the mandrel by locking nut, rear flange is fixed on the sleeve by screw, more than form a basic main axle unit, the rotating accuracy and the stationarity of main shaft have been determined, at basic main axle unit front end the driving discharge mechanism is set, the unloading housing links to each other by screw with sleeve, driving wheel on unloading housing and forward flange, is established a spacer ring, driving wheel and spacer ring by bearing bracket stand between driving wheel and mandrel, be connected by flat key between spacer ring and the mandrel.

The utlity model has load and be transmitted on the shell by the driving wheel spring bearing, it is small that mandrel is influenced by load, thereby reach the rotating accuracy when guaranteeing the main shaft high speed and the characteristics of stationarity.When changing drive disk assembly, needs only need pull down the unloading housing, it is promptly replaceable to take the main shaft elementary cell apart, can when making the exquisite compactness of main axle moving type precision machine tool general structure, be easy to install and keep in repair adjustment, can effectively reduce cost, good social and economic benefit are arranged.

Description of drawings

Fig. 1 looks cross-sectional view for the utility model master.

Fig. 2 is the I-I cross-sectional view of Fig. 1.

1. mandrels among the figure, 2. unloading housing, 3. bearing, 4. forward flange, 5. bearing, 6. spacer, 7. locking nut, 8. sleeve, 9. spacer, 10. bearing, 11. rear flanges, 12. encoder wheel, 13. locking nuts, 14. spacer rings, 15. driving wheels, 16. flat keys.

The specific embodiment

Accompanying drawing is embodiment of the present utility model.

Below in conjunction with accompanying drawing summary of the invention of the present utility model is described further.

With reference to Fig. 1, shown in Figure 2, between sleeve 8 front and back ends and mandrel 1, be provided with bearing 5,10, the outer ring of preceding end bearing 5 is fixed on the sleeve 8 by screw by forward flange 4, inner ring is locked on the mandrel 1 by spacer 6 by locking nut 7, the inner ring of rear end bearing 10 is inboard to join with spacer 9, the outside joins with encoder wheel 12 and is locked on the mandrel 1 by locking nut 13, rear flange 11 is fixed on the sleeve 8 by screw, more than form a basic main axle unit, determined the rotating accuracy and the stationarity of main shaft.At basic main axle unit front end the driving discharge mechanism is set, unloading housing 2 and sleeve 8 link to each other by screw, driving wheel 15 by 3 on bearing on unloading housing 2 and forward flange 4, between driving wheel 15 and mandrel 1, establish a spacer ring 14, be connected by flat key 16 between driving wheel 15 and spacer ring 14, spacer ring 14 and the mandrel 1.

In sum, a kind of front-end driven precision machine tool main shaft device comprises a basic main axle unit and drives discharge mechanism, drives the front end that discharge mechanism is contained in basic main axle unit.When spindle motor of machine tool is rotated at a high speed when carrying out machining by driving wheel 15 drive shaft, because the variation of cutting force and the disturbance of drive disk assembly, be delivered to load on the driving wheel 15 in continuous variation, during load change on acting on driving wheel 15, trace skew and distortion will take place along the load change direction in driving wheel 15, because of driving wheel 15 and spacer ring 14, design is gapped between spacer ring 14 and the mandrel 1, flat key 16 is connected to matched in clearance, spacer ring 14 will be done the slippage of self adaptation trace this moment, so the load change that driving wheel 15 bears mainly is transmitted on unloading housing 2 and the forward flange 4 by bearing 3, the load that is delivered on the mandrel 1 is very little, thereby play the unloading effect, the rotating accuracy when guaranteeing the main shaft high speed and the purpose of stationarity.Only need pull down unloading housing 2 when needs are changed drive disk assembly, it is promptly replaceable to take the main shaft elementary cell apart, thereby rotating accuracy and stability when guaranteeing the main shaft high speed are unaffected, and the delicate structure compactness is easy to install and maintenance is adjusted.

Claims (4)

1. front-end driven precision machine tool main shaft device, comprise a basic main axle unit and drive discharge mechanism, it is characterized in that at sleeve (8) preceding, rear end and mandrel are provided with bearing (5 between (1), 10), the outer ring of preceding end bearing (5) is fixed on the sleeve (8) by screw by forward flange (4), inner ring is locked on the mandrel (1) by spacer (6) by locking nut (7), the inner ring of rear end bearing (10) is inboard to join with spacer (9), the outside joins with encoder wheel (12) and is locked on the mandrel (1) by locking nut (13), rear flange (11) is fixed on the sleeve (8) by screw, more than form a basic main axle unit, at basic main axle unit front end the driving discharge mechanism is set, unloading housing (2) links to each other by screw with sleeve (8), driving wheel (15) by bearing (3) frame on unloading housing (2) and forward flange (4), between driving wheel (15) and mandrel (1), establish a spacer ring (14), driving wheel (15) and spacer ring (14), connect to form the driving discharge mechanism by flat key (16) between spacer ring (14) and the mandrel (1).
2. front-end driven precision machine tool main shaft device according to claim 1 is characterized in that said driving discharge mechanism is contained in basic main axle unit front end.
3. front-end driven precision machine tool main shaft device according to claim 1 is characterized in that said driving wheel two ends are equipped with bearing, and bearing is enclosed within respectively on forward flange and the unloading housing.
4. front-end driven precision machine tool main shaft device according to claim 1 is characterized in that between said driving wheel and mandrel being spacer ring, is connected by two flat keys of symmetry respectively between driven pulley and spacer ring, spacer ring and main shaft mandrel.
CN 200520079045 2005-07-12 2005-07-12 Main shaft device of front end driving precision lathe CN2801342Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520079045 CN2801342Y (en) 2005-07-12 2005-07-12 Main shaft device of front end driving precision lathe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520079045 CN2801342Y (en) 2005-07-12 2005-07-12 Main shaft device of front end driving precision lathe

Publications (1)

Publication Number Publication Date
CN2801342Y true CN2801342Y (en) 2006-08-02

Family

ID=36846047

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520079045 CN2801342Y (en) 2005-07-12 2005-07-12 Main shaft device of front end driving precision lathe

Country Status (1)

Country Link
CN (1) CN2801342Y (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102078972A (en) * 2009-12-01 2011-06-01 斗山英维高株式会社 Assembling tool for main shaft bearing
CN102228996A (en) * 2011-06-03 2011-11-02 大连意美机械有限公司 Numerical control vertical turning machine main shaft coder connecting mode
CN102366902A (en) * 2011-10-12 2012-03-07 宁波市鄞州泰盛数控设备有限公司 Cutter driving device in gear processing machine
CN103282146A (en) * 2011-12-27 2013-09-04 日本精工株式会社 Spindle device
CN104057107A (en) * 2014-06-19 2014-09-24 南京建克机械有限公司 Movable synchronization electric guide sleeve
TWI498176B (en) * 2013-07-26 2015-09-01
CN107470961A (en) * 2017-07-31 2017-12-15 张志通 A kind of high-precision numerical control machine
CN108405890A (en) * 2017-06-08 2018-08-17 黄河科技学院 A kind of transmission device of Lathe Spindle Box
TWI707741B (en) * 2016-02-01 2020-10-21 日商星精密股份有限公司 Machine tool

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102078972A (en) * 2009-12-01 2011-06-01 斗山英维高株式会社 Assembling tool for main shaft bearing
CN102228996A (en) * 2011-06-03 2011-11-02 大连意美机械有限公司 Numerical control vertical turning machine main shaft coder connecting mode
CN102366902A (en) * 2011-10-12 2012-03-07 宁波市鄞州泰盛数控设备有限公司 Cutter driving device in gear processing machine
CN103282146A (en) * 2011-12-27 2013-09-04 日本精工株式会社 Spindle device
CN103282146B (en) * 2011-12-27 2015-09-16 日本精工株式会社 Main shaft device
TWI498176B (en) * 2013-07-26 2015-09-01
CN104057107A (en) * 2014-06-19 2014-09-24 南京建克机械有限公司 Movable synchronization electric guide sleeve
TWI707741B (en) * 2016-02-01 2020-10-21 日商星精密股份有限公司 Machine tool
CN108405890A (en) * 2017-06-08 2018-08-17 黄河科技学院 A kind of transmission device of Lathe Spindle Box
CN107470961A (en) * 2017-07-31 2017-12-15 张志通 A kind of high-precision numerical control machine

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GR01 Patent grant
C14 Grant of patent or utility model
CX01 Expiry of patent term

Expiration termination date: 20150712

Granted publication date: 20060802

EXPY Termination of patent right or utility model