CN1857837A - Electric chuck unit - Google Patents
Electric chuck unit Download PDFInfo
- Publication number
- CN1857837A CN1857837A CN 200610054336 CN200610054336A CN1857837A CN 1857837 A CN1857837 A CN 1857837A CN 200610054336 CN200610054336 CN 200610054336 CN 200610054336 A CN200610054336 A CN 200610054336A CN 1857837 A CN1857837 A CN 1857837A
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- China
- Prior art keywords
- chuck
- group
- parcel
- end cap
- main shaft
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Abstract
The present invention relates to universal fixture widely used in machine manufacturing field, and is one kind of electric chuck unit. The electric chuck unit consists of a clamping unit, a power unit, an electromagnetic friction clutch assembly, a casing, an electromagnetic brake assembly, etc. When the electromagnetic brake assembly is powered, the clamping unit is connected to the head stock integrally without rotating; and when the electromagnetic friction clutch assembly is powered, the power unit transfers the rotation to the claws for clamping or unclamping the workpiece. During machining, only the clamping unit rotates with the main shaft. Compared with available technology, the present invention has the advantages of reduced rotating part number and weight, being favorable to raising the dynamic balance quality of the main shaft, etc.
Description
Technical field
The present invention relates to be widely used in the universal fixturing of a class holding workpiece of mechanical field.
Background technology
Normal working power chuck on CNC lathe and automatic lathe, except that hydraulic power chuck and pneumatic motive force chuck, electric chuck also is widely used.At present, most of electric chuck versions are: at the front end chuck for installing body of lathe spindle, and in the rear end of main shaft motor is installed, when motor rotatablely moves, the claw that drives chuck by middle connecting piece moves up and down, thereby can clamp and unclamp workpiece.Patent WO9951380 discloses a kind of electric chuck unit, in the front end chuck for installing body of lathe spindle, a harmonic gear reducer is arranged, and the electric power unit is installed in the rear end of main shaft, and comprising motor, electromagnetic clutch etc., two ends connect mutually by the axle of a hollow.In process, chuck body, decelerator, quill shaft, main shaft and rotor are done as a whole rotation.Because many parts with the lathe spindle high speed rotary, exist difficult problems such as dynamic balancing.Simultaneously, its complex structure installation and maintenance difficulty is bigger.
Summary of the invention
The present invention overcomes bigger etc. the deficiency of prior art dynamic balancing, complex structure installation and maintenance difficulty, has proposed a kind of electric chuck unit.
In order to realize goal of the invention, the present invention proposes the technical solution of electric chuck unit, mainly comprises: with the chuck seat 3 that main shaft 1 connects, parcel 22, chuck end cap 28, claw 23 grades that are installed on the chuck end cap 28 constitute electric chuck unit holding function unit; With the chuck motor (not shown) that gear 8 connects, external gear pump pair 7,8, few tooth difference internal gear pair 11,13 grades constitute electric chuck unit power function unit; And electromagnetic friction clutch assembly 12,19,20,21,32,33; Chuck body shell 10 and electromagnetic brake assembly 16,17,34 etc.When the electromagnetic brake assembly was switched on, electric chuck unit holding function unit and chuck body shell, headstock were connected as one and do not rotate; Simultaneously, electromagnetic friction clutch assembly energising, electric chuck unit power function unit passes to parcel rotatablely moving, and claw moves up and down under the end-face helical effect of rotatablely moving, and clamps or unclamps workpiece.Thereafter, electromagnetic brake assembly and the outage of electromagnetic friction clutch assembly, electric chuck unit holding function unit is with main axis rotation, and electric chuck unit power function unit is not with main axis rotation.
The present invention compared with the prior art, its technique effect is: effectively reduce the quality with main axis rotation part quantity and rotation, help improving main shaft dynamic balancing quality, influence factor when simplifying the main shaft design, it is simply compact to be easy to seriation and standardized designs manufacturing, apparatus structure, is convenient to installation and maintenance.
Description of drawings
Fig. 1 is electric chuck unit figure.
Fig. 2 is a chuck end cap front view.
Fig. 3 is a chuck end cap cutaway view.
Fig. 4 is a chuck end cap rearview.
Fig. 5 is the parcel front view.
Fig. 6 is the parcel cutaway view.
In Fig. 1:
1-machine tool chief axis 2-main shaft casing 3-chuck seat
4,6-bearing group 5-spacer ring 7-has the gear of eccentric shaft
8-input gear 9-joint bolt 10-chuck body shell
11-internal gear 12-power supply slip ring group 13-external gear
14-bearing 15-dead ring 16-electromagnet group
17-brake hoop 18-set of permanent magnets 19-friction plate group
20-pressure ring 21-electromagnet group 22-parcel
23-claw 24-bearing 25-pressure ring
26,27-connects set screws 28-chuck end cap 29,30-bearing group
31-spacer ring 32-guider screw group 33-back-moving spring group
34-guide finger group 35,37-bearing group 36-spacer ring
The 38-pressure ring
The specific embodiment
In the structure shown in Figure 1, when chuck will move chucking (or unclamping) workpiece, electromagnetic brake 16,17,34 energising action and brakings, i.e. electromagnet group 16 energisings, adhesive brake hoop 17, the chuck body shell 10 like this, chuck end cap 28, chuck seat 3, and main shaft 1 is connected as one and does not rotate; At this moment, when rotating with the chuck motor (not shown) of gear 8 connections, external gear pump pair 7,8 is pressed the gearratio motion, and gear 7 passes to internal gear 11 to motion as input component and by the gear 13 that is installed on its eccentric shaft; Simultaneously, give electricity by slip ring 11, electromagnetic friction clutch assembly 12,19,20,21, also action of 32,33 energisings, i.e. electromagnet 21 energising absorption pressure rings 20 pressing friction sheet groups 19, parcel 22 rotates synchronously with internal gear 11; And chuck end cap 28 does not rotate, and the T type groove upper clipping claw 23 that is installed in the chuck end cap 28 moves up and down under the end-face helical effect of rotatablely moving, and clamps or unclamps workpiece.When preparing to add man-hour, electromagnetic friction clutch assembly 12,19,20,21,32,33 outages, pressure ring 20 resets under back-moving spring group 33 and 32 effects of guider screw group, disengages between the friction plate in the friction plate group 19, and parcel 22 disconnects and connecting with internal gear 11; Simultaneously, electromagnetic brake 16,17,34 outages, brake hoop 17 resets under the effect of set of permanent magnets 18 and guide finger group 34, and chuck end cap 28 grades disconnect and connecting with chuck body shell 1; Therefore, in process, main shaft 1, chuck seat 3, chuck end cap 28 and claw 23, external tooth friction plate etc. is connected as one in parcel 22 and the friction plate group 19, together rotates with workpiece; And chuck motor (not shown), external gear pump pair 7,8, few tooth difference internal gear pair 11,13, internal toothed friction plate in the friction plate group 19, pressure ring 20, chuck body shell 10 grades are not rotated with spindle assemblies.
Chuck seat 3 among the present invention connects with main shaft 1 by connecting set screws 26, chuck end cap 28 connects with chuck seat 3 by connecting set screws 27, parcel 22 is supported on the chuck seat 3 by bearing 24, and claw 23 is by connecting with parcel 22 by its end-face helical simultaneously in the T groove on its T type key arrangement chuck end cap 28.Connect set screws 26 and connect set screws 9 by laying down, whole electric chuck unit can integrally unload from main shaft and headstock.
External gear pump pair 7,8 among the present invention is supported on the chuck seat 3 by bearing group 4,6, and bearing group 4,6 is concentric with main shaft, and an end of gear 7 has one section eccentric shaft and one section concentric shafts.
External gear 13 in few tooth difference internal gear pair 11,13 among the present invention is supported on the eccentric shaft part of gear 7 by bearing 14, and as input motion is passed to internal gear 11.Internal gear 11 is supported on the concentric shaft part of gear 7 by bearing group 29,30.
Electromagnetic friction clutch assembly among the present invention includes: be placed in power supply slip ring group 12 on the internal gear 11, friction plate group 19,21, one groups of uniform guider screws 32 of 20, one groups of uniform electromagnet of pressure ring and back-moving spring 33.When giving electricity by slip ring 11, i.e. pressure rings 20 pressing friction sheet groups 19 are adsorbed in electromagnet group 21 energisings, and parcel 22 rotates synchronously with internal gear 11; When outage, pressure ring 20 resets under groups of springs 33 effects, disengaging friction sheet group 19, and parcel 22 disconnects and connecting with internal gear 11.
Electromagnetic brake assembly among the present invention includes: be placed in electromagnet group 16 on the chuck body shell 10, brake hoop 17 and be placed in guide finger group 34 on the chuck end cap 28.When electromagnet group 16 energisings, adhesive brake hoop 17, chuck body shell 10 is connected as one with chuck end cap 28 grades like this, otherwise, electromagnet group 16 outages, brake hoop 17 resets under the effect of the set of permanent magnets on the chuck end cap 28 18, and chuck end cap 28 grades disconnect and connecting with chuck body shell 10.
Claims (2)
1 one kinds of electric chuck units, comprise the holding function unit, not with the power function unit of main axis rotation, the electromagnetic friction clutch assembly, electromagnetic brake assembly and chuck body shell, it is characterized in that: the holding function unit is by the chuck seat (3) that connects with main shaft (1) by connection set screws (26), by connecting the chuck end cap (28) that set screws (27) connects with chuck seat (3), be supported on parcel (22) on the chuck seat (3) by bearing (24), settle in the T groove on chuck end cap (28) by its T type key, and connect with parcel (22) by its end-face helical, the claw formations such as (23) that under parcel (22) effect of rotatablely moving, clamps or unclamp workpiece; The power function unit is by the bearing group (4 concentric with main shaft (1), 6) be supported on external gear pump pair (7 on the chuck seat (3), 8), be supported on the external gear (13) on the eccentric shaft part of gear (7) by bearing (14), be supported on by bearing group (29,30) on the concentric shaft part of gear (7), formations such as the internal gear (11) of rotary power and chuck motor are provided for parcel (22); The electromagnetic friction clutch assembly is gone up power supply slip ring group (12) by internal gear (11), pressure ring (20), one group of uniform electromagnet (21), one group of uniform guider screw (32) and back-moving spring (33), friction plate group formations such as (19) can realize that parcel (22) rotates or disconnects parcel (22) synchronously and connects with internal gear (11) with internal gear (11); The electromagnetic brake assembly is by the electromagnet group (16) that is placed on the chuck body shell (10), be placed in chuck end cap (28) and go up guide finger group (34), brake hoop (17), set of permanent magnets formations such as (18) can realize that chuck end cap (28) is connected as one with chuck body shell (10) or disconnects chuck end cap (28) to connect with chuck body shell (10).
2 electric chuck units according to claim 1, it is characterized in that whole electric chuck unit is an independently integral body, connecting and connect set screws (9) by connection set screws (26) with main shaft (1) connects with headstock, connect set screws (26) and connect set screws (9) by laying down, whole electric chuck unit can integrally unload from main shaft and headstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100543361A CN100431757C (en) | 2006-05-31 | 2006-05-31 | Electric chuck unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100543361A CN100431757C (en) | 2006-05-31 | 2006-05-31 | Electric chuck unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1857837A true CN1857837A (en) | 2006-11-08 |
| CN100431757C CN100431757C (en) | 2008-11-12 |
Family
ID=37296819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100543361A Expired - Fee Related CN100431757C (en) | 2006-05-31 | 2006-05-31 | Electric chuck unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100431757C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176993A (en) * | 2008-10-08 | 2011-09-07 | 特劳伯车床有限商业两合公司 | Receptacle unit for tools or work pieces and spindle arrangement for tools or work pieces |
| CN103949682A (en) * | 2014-05-05 | 2014-07-30 | 许昌学院 | Electric adjustable lathe spindle chuck |
| CN105228799A (en) * | 2013-06-26 | 2016-01-06 | 株式会社安川电机 | Stopper mechanism, articulation mechanism and robot |
| CN106514011A (en) * | 2016-12-22 | 2017-03-22 | 山东镭鸣数控激光装备有限公司 | Automatic centering electric rotating chuck |
| CN109580783A (en) * | 2018-12-19 | 2019-04-05 | 中国兵器科学研究院宁波分院 | A kind of click-on mechanism for ultrasonic C-scanning automatic checkout system |
| CN110945260A (en) * | 2017-09-06 | 2020-03-31 | 优尼邦斯股份有限公司 | Clutch and power transmission structure for vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2306096Y (en) * | 1996-09-02 | 1999-02-03 | 杨广翔 | Small tooth difference electric chuck with three jaws |
| EP0925862A4 (en) * | 1997-02-21 | 2006-06-28 | Hitachi Seiki Kk | Electric chuck for machine tool and method of opening or closing gripping pawl of same |
| US6079303A (en) * | 1998-04-03 | 2000-06-27 | N. T. Naum Technologies Ltd. | Automatic adjustable power chuck system and method |
| CN1759967A (en) * | 2005-10-31 | 2006-04-19 | 王洋 | Digital control electric chuck for lathe |
-
2006
- 2006-05-31 CN CNB2006100543361A patent/CN100431757C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176993A (en) * | 2008-10-08 | 2011-09-07 | 特劳伯车床有限商业两合公司 | Receptacle unit for tools or work pieces and spindle arrangement for tools or work pieces |
| CN102176993B (en) * | 2008-10-08 | 2013-10-02 | 特劳伯车床有限商业两合公司 | Receptacle unit for tools or work pieces and spindle arrangement for tools or work pieces |
| CN105228799A (en) * | 2013-06-26 | 2016-01-06 | 株式会社安川电机 | Stopper mechanism, articulation mechanism and robot |
| CN103949682A (en) * | 2014-05-05 | 2014-07-30 | 许昌学院 | Electric adjustable lathe spindle chuck |
| CN106514011A (en) * | 2016-12-22 | 2017-03-22 | 山东镭鸣数控激光装备有限公司 | Automatic centering electric rotating chuck |
| CN106514011B (en) * | 2016-12-22 | 2019-03-05 | 山东镭鸣数控激光装备有限公司 | A kind of automatic centering electronic rotation collet |
| CN110945260A (en) * | 2017-09-06 | 2020-03-31 | 优尼邦斯股份有限公司 | Clutch and power transmission structure for vehicle |
| US11598381B2 (en) | 2017-09-06 | 2023-03-07 | Univance Corporation | Clutch and vehicle motive power transmission structure |
| CN109580783A (en) * | 2018-12-19 | 2019-04-05 | 中国兵器科学研究院宁波分院 | A kind of click-on mechanism for ultrasonic C-scanning automatic checkout system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100431757C (en) | 2008-11-12 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20110531 |