CN101015864A - Chuck and method thereof - Google Patents
Chuck and method thereof Download PDFInfo
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- CN101015864A CN101015864A CN 200610073942 CN200610073942A CN101015864A CN 101015864 A CN101015864 A CN 101015864A CN 200610073942 CN200610073942 CN 200610073942 CN 200610073942 A CN200610073942 A CN 200610073942A CN 101015864 A CN101015864 A CN 101015864A
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Abstract
The invention provides a chuck and a method for aligning the object in the chuck. The chuck comprises two pair of clamping jaws, wherein one clamping jaw of each pair of clamping jaws is basically dispossed opposite to the other clamping jaw. At least one pair of clamping jaws are connected together to move at the same time. Preferred, one clamping jaw of each pair of clamping jaws is connected with the other clamping jaw to move at the same time. The clamping jaws are dispossed to make one clamping jaw move to the other clamping jaw radially move. Two clamping jaws of each pair of clamping jaw is basically and oppositely disposed in radial direction. A pair of clamping jaws are basically and vertically disposed opposite to the other pair of clamping jaws. It is prefferred that each pair of clamping jaws are independent of the moving of the other pair of clamping jaws.
Description
Technical field
The present invention relates to a kind of chuck and a kind of method that makes object centering on chuck.Especially, chuck of the present invention and method are used to make tubular piece centering.
Background technology
The machined of tubular piece be usually included on two or more jaws clamp tubular piece with bear cutting force and make tubular piece centering with processed in tubular piece and undressed part between form relative with one heart.Conventional chuck has diametrically three jaws arranging along tubular piece usually to move and to make tubular piece centering simultaneously.Usually, the outside of tubular piece is not absolute circle, but is similar to ellipse.Therefore, when clamping with these chucks, the average center of tubular piece is incorrect, causes processing uneven.
Avoid producing this problem, common method is to control the error of centralization that each jaw produces owing to the similar ellipse of tubular piece with compensation independently.Yet, this method inaccuracy consuming time and frequent.
Summary of the invention
According to a first aspect of the invention, a kind of chuck that comprises two pairs of jaws is provided, wherein, a jaw in the every pair of jaw arranges with relative basically relation with respect to another jaw, and at least one pair of the jaw in described two pairs of jaws is joined together so that move simultaneously.
A jaw is linked to each other to move simultaneously to another jaw in the jaw with this.Described jaw can be arranged such that a jaw in a pair of jaw mobile cause or be controlled at this to jaw in the corresponding of another jaw move radially.The jaw of every centering can be arranged with another substantially radially relative relation.Therefore, moving of a jaw causes automatically or controls this corresponding of another jaw in jaw moved.
A pair of jaw can substantially perpendicularly be arranged jaw with respect to another.Every pair of jaw can be independent of another jaw is moved.
Described chuck can comprise gear drive, and described gear drive links to each other with influence or moves when controlling this to another jaw in the jaw with each jaw.Therefore, relative jaw can mechanically link together in every pair of jaw, thereby makes a jaw mobile cause or control the corresponding of another jaw and move.
Each jaw in a pair of jaw can be moved by the actuating device that links to each other with described gear drive.Described actuating device can provide linear force to advance and to withdraw coupled jaw diametrically.
An actuating device can link to each other with every pair of jaw.According to this embodiment, described gear drive can transmit the power that each jaw is moved radially.Alternatively, provide an actuating device, make described gear drive play and make the synchronization-moving effect of described jaw each jaw.According to this setting, described gear drive transmits minimum (or not transmitting) power.
Described actuating device comprises a pressure head (ram).Described pressure head has the tooth that is used for a pinion.Can link together to move together by gear wheel in large diameter with the pinion of the tooth engagement of jaw relative in a pair of jaw.Can be every pair of jaw independent gear wheel in large diameter is provided.
Described gear wheel in large diameter can for example be arranged with another gear wheel in large diameter with respect to the hole of described chuck in the axial direction at interval.The pinion of a pair of jaw can have forward outstanding axle, and each has and is fixed on this and goes up single gear to mesh with corresponding gear wheel in large diameter.Another pinion to jaw can have rearwardly projecting axle, each have be fixed on this go up with the single gear of corresponding gear wheel in large diameter engagement.
The main hydraulic cylinder that activates can link to each other with first jaw in every pair of jaw, to drive the described pressure head that links to each other with this jaw.Auxiliary hydraulic cylinder can link to each other with second jaw in every pair of jaw and can be in pressure (and selectively be from same pressure source) the down operation identical with described main actuating hydraulic cylinder.Therefore, described gear drive can cause or guide the corresponding of described jaw to move, but, radially moving inward the required main thrust of jaw can be provided by each actuating device that employing is connected to the hydraulic cylinder form on the jaw separately, has reduced the required power of being transmitted by described gear drive thus.
Described jaw has elongate member to prolong the radially inside coverage of each jaw.Described elongate member has at least two bearings, and each bearing has and is used for the contact-making surface that contacts with object in the described chuck.Described at least two bearings are vertically arranged with respect to the object in the described chuck.
Each contact-making surface to the small part that is used for contacting with object in the described chuck is an arc.
A pair of jaw can depart from jaw in the vertical along the axis of tubular piece and another.This is provided with the horizontal centering of the object that has improved in described chuck.
According to a second aspect of the invention, a kind of method that makes object centering in the chuck with two pairs of jaws is provided, wherein, a jaw in the every pair of jaw and another jaw are relatively arranged basically, and two jaws of at least one pair of jaw are joined together so that move simultaneously, said method comprising the steps of:
To will be by every pair of jaw of described movement of objects of centering;
Contact described object by each jaw; And make described object centering.
Described method can comprise that two jaws that connect in every pair of jaw are to move simultaneously.Described method can comprise jaw vertical mutually basically to being arranged to.Described method preferably includes and moves each independently of one another to jaw.
Described method can comprise makes every pair of jaw link to each other with independent gear drive.Described method can comprise by actuating device is linked to each other with described jaw activates described jaw.
Described method can comprise makes pressure head link to each other with each jaw; Make each pressure head have tooth; Make the described tooth and corresponding pinion of each pressure head; And each pinion is linked to each other with gear wheel in large diameter.Described method can comprise provides a gear wheel in large diameter to every pair of jaw.
Description of drawings
Also as shown in it one embodiment of the present of invention are described referring now to accompanying drawing, wherein:
Fig. 1 is the partial sectional view according to chuck of the present invention;
Fig. 2 is the cutaway view along the hydraulic operation pressure head of line Z-Z intercepting shown in Figure 1;
Fig. 3 is the cutaway view along the hydraulic pressure head of line X-X intercepting shown in Figure 1; And
Fig. 4 is the partial sectional view that tubular piece is positioned at improved chuck wherein.
The specific embodiment
Chuck illustrates with 10 generally in Fig. 1.Chuck 10 has first pair of hydraulic pressure head 50 and second pair of hydraulic pressure head 60.The every pair of pressure head crosses the axis positioned opposite on diameter basically in the hole of chuck 10.The first pressure head 50a and 50b are arranged in the above and below in the hole of chuck 10 on the axis of perpendicular.The second couple of pressure head 60a and 60b are arranged in the left side and the right side in the hole of chuck 10 on substantially horizontal axis.Therefore, two pairs of pressure heads 50,60 are arranged basically mutual vertically.Each pressure head 50a, 50b, 60a, 60b can move and be projected into via the axle sleeve (not shown) in the hole 12 of chuck 10 diametrically.
The first pressure head 50a, the 50b of upper and lower have tooth bar 51a, 51b along its periphery.Every group of tooth bar 51a, 51b and the corresponding first pinion 52a, 52b engagement.Be fixed on the outstanding forward first pinion shaft 54a, the 54b at pinion 52a, 52b relative on the diameter.As shown in Figure 3, the first pinion shaft 54a, 54b are installed on the first small diameter gear 55a, the 55b.
Equally, two pinion 62a, 62b with tooth bar 61a, the 61b engagement of horizontally disposed second couple of pressure head 60a, 60b are connected on the rearwardly projecting second pinion shaft 64a, the 64b.As shown in Figure 4, each among the second pinion shaft 64a, the 64b all is installed on one second small diameter gear 65a, the 65b.According to an embodiment, the size of tooth that is installed to the pinion 52,62 on the corresponding pinion shaft 54,64 is inequality.But this is not basic demand of the present invention.
Front portion towards chuck 10 is provided with first gear wheel in large diameter 58.The tooth of first gear wheel in large diameter 58 all meshes with the upper and lower first small diameter gear 55a, the 55b that are installed on the first pinion shaft 54a, the 54b.
Rear portion towards chuck 10 is provided with second gear wheel in large diameter 68.Equally, be installed to tooth and 68 engagements of second gear wheel in large diameter of the second small diameter gear 65a, 65b on the second pinion shaft 64a, the 64b.Small diameter gear 55,65 moves in bearing 59,69 separately.
The main hydraulic cylinder 56 that activates is connected to the first pressure head 50b that is meshed with the last first pinion 52b of the corresponding first pinion shaft 54b.Another is main activate hydraulic cylinder 66 be arranged to move the second pressure head 60b and impel with second pinion shaft 64 in second a pinion 62b rotation that links to each other.Main each that activates in the hydraulic cylinder 56,66 can variable pressure activates respectively with mobile pressure head 50b, 60b diametrically.
In order in the hole 12 of chuck 10, to hold the tubular piece of various sizes and also in order to improve the stability of tubular piece in chuck 10, the front end of each pressure head 50,60 can be provided with the jaw of different size.Figure 4 illustrates a this improved example, wherein hydraulic pressure head 50a, 50b link to each other with jaw 20a, a 20b respectively.Each jaw 20a, 20b have two bearing 22a, 22b.Bearing 22a, 22b have increased the surface area that contacts with tubular piece 16 in the chuck 10, and along the arc-shaped outer surface of tubular piece 16.In addition, bearing 22a, 22b longitudinally arrange along tubular piece 16 length directions, make tubular piece 16 stable and be bearing in jaw 20a, the 20b of chuck 10 thus, and limited basically tubular piece 16 departing under himself gravity.Bearing 22a, 22b have arc contact surface, to make tubular piece 16 be in the chuck 10 in the centering operating process and to allow tubular piece to slide in chuck 10 usually.
Before using chuck 10, tubular piece 16 is set between jaw 20a, the 20b that links to each other with pressure head 50a, 50b, to guarantee tubular piece 16 basic horizontal and to make the contact-making surface of its through hole perpendicular to chuck 10.
The first main hydraulic cylinder 56 that activates can activated with relative auxiliary cylinders 57 so that the first upper and lower pressure head 50a, 50b shift to tubular piece 16.By be installed to pinion shaft 54a, 54b on tooth 51a, the 51b of pinion 52a, the 52b first pressure head 50a, the 50b that are meshed and the first small diameter gear 55a, the 55b that is meshed with first gear wheel in large diameter 58, make above-mentioned moving radially synchronously.Basically relative pressure head 50a, 50b and being in contact with one another of gear wheel in large diameter 58 causes pressure head 50a, 50b corresponding mobile on diameter.
Because there is fine difference in tubular piece 16 on ovality, the bearing 22a, the 22b that therefore are installed on pressure head 50a, the 50b can not contact with tubular piece 16 simultaneously.But, among bearing 22a, the 22b first arrive tubular piece 16 will continue to move forward promote tubular piece 16 until after bearing 22a, the 22b relative position on diameter of arrival engage with tubular piece 16, played the effect that on vertical plane, makes tubular piece centering like this.
Equally, the second main actuating hydraulic cylinder 66 and auxiliary cylinders 67 cause the second pinion 62a, the 62b corresponding mobile that is installed on pinion shaft 64a, the 64b by tooth 61a, the 61b that is arranged on the second pressure head 60a, the 60b.Because small diameter gear 65a, 65b and 68 engagements of second gear wheel in large diameter, therefore relative jaw has corresponding mobile on diameter.The jaw of first arrival will promote to relative jaw with tubular piece 16 contacts and with it on horizontal plane.When second pair of jaw contacts with tubular piece 16, tubular piece 16 in vertical jaw, slide until tubular piece 16 subsequently in horizontal plane by centering.
Like this, each jaw 20a, the 20b in the every pair of jaw has accordingly and moves radially.In addition, by two gear wheel in large diameter 58,68, every pair of jaw can be relative to another to moving independently.Obtained bigger accuracy than manually adjusting jaw 20a, 20b like this.Two vertically arranged jaws and two horizontally disposed jaws make tubular piece 16 can be on two planes and along on four points of tubular piece 16 circumference by centering.Therefore, adopt the jaw of every pair of two pairs of independent actuation that can move simultaneously to guarantee that tubular piece 16 is aligned exactly and centering on four contact points, with the ovality of compensation tubular spare 16.
By making bearing 22a, 22b have arc contact surface to improve the clamping load distribution and to avoid crushed than thin pipe fitting, chuck 10 can further be improved.
Can provide other several, and every pair of jaw links to each other preferably and moves simultaneously with another jaw with this centering to relative jaw.For example can provide three pairs of jaws, although four pairs of jaws are preferred for the centering operation.
Can make various deformation and improvement without departing from the scope of the invention.
Claims (31)
1. a chuck comprises two pairs of jaws, and wherein, a jaw in the every pair of jaw arranges with relative basically relation with respect to another jaw, and at least one pair of the jaw in described two pairs of jaws is joined together so that move simultaneously.
2. chuck as claimed in claim 1 is characterized in that, a jaw in the every pair of jaw links to each other to another jaw in the jaw with this so that move simultaneously.
3. chuck as claimed in claim 1 is characterized in that, described jaw is arranged such that a jaw in a pair of jaw mobilely causes that the corresponding of another jaw moves radially during this is to jaw.
4. chuck as claimed in claim 1 is characterized in that, the jaw in the every pair of jaw with basically on diameter relative mutually relation arrange.
5. chuck as claimed in claim 1 is characterized in that a pair of jaw is substantially perpendicularly arranged jaw with respect to another.
6. chuck as claimed in claim 1 is characterized in that, every pair of jaw can be independent of another jaw is moved.
7. chuck as claimed in claim 1 is characterized in that described chuck comprises gear drive, and described gear drive links to each other with each jaw and moves when realizing this to another jaw in the jaw.
8. chuck as claimed in claim 1 is characterized in that, relative jaw mechanically connects in every pair of jaw, thereby makes that the mobile of a jaw causes that this moves the corresponding of another jaw in the jaw in a pair of jaw.
9. chuck as claimed in claim 7 is characterized in that, each jaw in a pair of jaw can move by the actuating device that links to each other with described gear drive.
10. chuck as claimed in claim 9 is characterized in that described actuating device provides linear force, to advance and to withdraw coupled described jaw diametrically.
11. chuck as claimed in claim 9 is characterized in that, an actuating device is connected to every pair of jaw.
12. chuck as claimed in claim 11 is characterized in that, the power that described gear drive transmission moves radially each jaw.
13. chuck as claimed in claim 9 is characterized in that, each jaw is provided with an actuating device, and described gear drive plays the synchronization-moving effect of described jaw that makes.
14. chuck as claimed in claim 9 is characterized in that, described actuating device comprises at least one pressure head.
15. chuck as claimed in claim 14 is characterized in that, each pressure head has the tooth that is used for pinion.
16. chuck as claimed in claim 15 is characterized in that, the tooth of relative jaw engagement in each pinion and a pair of jaw, and described pinion connects so that move simultaneously by gear.
17. chuck as claimed in claim 16 is characterized in that, every pair of jaw is provided with independent gear.
18. chuck as claimed in claim 17 is characterized in that, described gear is spaced from each other in the axial direction with respect to the hole of described chuck.
19. chuck as claimed in claim 14 is characterized in that, the main hydraulic cylinder that activates links to each other with first jaw in every pair of jaw, the described pressure head that links to each other with this jaw with driving.
20. chuck as claimed in claim 19 is characterized in that, auxiliary hydraulic cylinder links to each other with second jaw in every pair of jaw, and can move with described main the actuating under the identical pressure of hydraulic cylinder.
21. chuck as claimed in claim 1 is characterized in that, each jaw has elongate member, to prolong the radially inside coverage of described jaw.
22. chuck as claimed in claim 21 is characterized in that, described elongate member has at least two bearings, and each bearing has and is used for the contact-making surface that contacts with object in the described chuck.
23. chuck as claimed in claim 22 is characterized in that, described at least two bearings are spaced apart in the axial direction with respect to the described hole of described chuck.
24. chuck as claimed in claim 1 is characterized in that, each contact-making surface that is used for contacting with object in the described chuck is arc at least in part.
25. chuck as claimed in claim 1 is characterized in that, a pair of jaw departs from jaw with another in the axial direction with respect to the described hole of described chuck.
26. method that makes object centering in chuck with two pairs of jaws, wherein, a jaw in the every pair of jaw and another jaw relatively arrange basically, and two jaws of at least one pair of jaw are joined together so that move simultaneously, said method comprising the steps of:
To will be by every pair of jaw of described movement of objects of centering;
Contact described object by each jaw; And make described object centering.
27. method as claimed in claim 26 is characterized in that, comprises that two jaws that connect in every pair of jaw are so that move simultaneously.
28. method as claimed in claim 26 is characterized in that, comprises arranging every pair of jaw basically mutual vertically.
29. method as claimed in claim 26 is characterized in that, comprises with another jaw is moved each independently to jaw.
30. method as claimed in claim 26 is characterized in that, comprises every pair of jaw is linked to each other with independent gear drive.
31. method as claimed in claim 26 is characterized in that, comprises by actuating device is linked to each other with described jaw activating described jaw.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE0602449.1 | 2006-02-08 | ||
| DE102006002449 | 2006-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101015864A true CN101015864A (en) | 2007-08-15 |
Family
ID=38728794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610073942 Pending CN101015864A (en) | 2006-02-08 | 2006-03-02 | Chuck and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101015864A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648283A (en) * | 2008-08-14 | 2010-02-17 | 现场油田服务有限公司 | Chuck device and method |
| CN102078979A (en) * | 2009-11-27 | 2011-06-01 | 本田技研工业株式会社 | Lathe chuck and workpiece processing method |
| CN102672208A (en) * | 2012-05-15 | 2012-09-19 | 常州亚通杰威电机有限公司 | Automatic clamping and loosening device and method for workpiece on lathe |
| CN102689046A (en) * | 2012-06-05 | 2012-09-26 | 深圳市神拓机电设备有限公司 | Pipe cutting system |
| CN103624566A (en) * | 2013-11-07 | 2014-03-12 | 大连华根机械有限公司 | Centering mechanism |
| CN104470663A (en) * | 2013-01-25 | 2015-03-25 | 沃尔克·亨克 | Compensating chuck |
| CN105414585A (en) * | 2016-01-04 | 2016-03-23 | 浙江今跃机械科技开发有限公司 | Chuck and machine tool |
| CN106238761A (en) * | 2016-09-29 | 2016-12-21 | 东莞市环宇文化科技有限公司 | A kind of self-centering chuck |
| CN106903336A (en) * | 2017-02-20 | 2017-06-30 | 和和机械股份有限公司 | Centering and clamping apparatus |
| CN107116528A (en) * | 2017-04-21 | 2017-09-01 | 叶雨玲 | Rotary hardware ＆ tools |
| CN108724301A (en) * | 2018-05-24 | 2018-11-02 | 夏文斌 | A kind of heavy caliber PP manages the micro-adjusting mechanism of portable processing unit (plant) |
| CN109321862A (en) * | 2018-12-11 | 2019-02-12 | 徐州工程学院 | A kind of thermal spraying fixture with ultrasonic vibration |
| CN110227958A (en) * | 2019-05-06 | 2019-09-13 | 南京春辉科技实业有限公司 | Drill chuck clamping device and method |
| CN111993060A (en) * | 2020-08-29 | 2020-11-27 | 黄涛 | Cutting and welding integrated equipment for large-diameter stainless steel pipes |
-
2006
- 2006-03-02 CN CN 200610073942 patent/CN101015864A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648283A (en) * | 2008-08-14 | 2010-02-17 | 现场油田服务有限公司 | Chuck device and method |
| CN102078979A (en) * | 2009-11-27 | 2011-06-01 | 本田技研工业株式会社 | Lathe chuck and workpiece processing method |
| CN102672208A (en) * | 2012-05-15 | 2012-09-19 | 常州亚通杰威电机有限公司 | Automatic clamping and loosening device and method for workpiece on lathe |
| CN102689046A (en) * | 2012-06-05 | 2012-09-26 | 深圳市神拓机电设备有限公司 | Pipe cutting system |
| CN102689046B (en) * | 2012-06-05 | 2014-08-20 | 深圳市神拓机电设备有限公司 | Pipe cutting system |
| US10252348B2 (en) | 2013-01-25 | 2019-04-09 | Hvm Technology Gmbh | Compensating chuck |
| CN104470663A (en) * | 2013-01-25 | 2015-03-25 | 沃尔克·亨克 | Compensating chuck |
| CN103624566A (en) * | 2013-11-07 | 2014-03-12 | 大连华根机械有限公司 | Centering mechanism |
| CN105414585A (en) * | 2016-01-04 | 2016-03-23 | 浙江今跃机械科技开发有限公司 | Chuck and machine tool |
| CN105414585B (en) * | 2016-01-04 | 2017-12-12 | 浙江今跃机械科技开发有限公司 | Chuck and lathe |
| CN106238761A (en) * | 2016-09-29 | 2016-12-21 | 东莞市环宇文化科技有限公司 | A kind of self-centering chuck |
| CN106903336A (en) * | 2017-02-20 | 2017-06-30 | 和和机械股份有限公司 | Centering and clamping apparatus |
| CN107116528A (en) * | 2017-04-21 | 2017-09-01 | 叶雨玲 | Rotary hardware ＆ tools |
| CN108724301A (en) * | 2018-05-24 | 2018-11-02 | 夏文斌 | A kind of heavy caliber PP manages the micro-adjusting mechanism of portable processing unit (plant) |
| CN108724301B (en) * | 2018-05-24 | 2020-12-11 | 徐州鹏宇液压科技有限公司 | Fine adjustment mechanism of portable processing device for large-diameter PP (polypropylene) pipe |
| CN109321862A (en) * | 2018-12-11 | 2019-02-12 | 徐州工程学院 | A kind of thermal spraying fixture with ultrasonic vibration |
| CN109321862B (en) * | 2018-12-11 | 2020-11-10 | 徐州工程学院 | Take ultrasonic vibration's hot spraying anchor clamps |
| CN110227958A (en) * | 2019-05-06 | 2019-09-13 | 南京春辉科技实业有限公司 | Drill chuck clamping device and method |
| CN110227958B (en) * | 2019-05-06 | 2024-04-26 | 南京春辉科技实业有限公司 | Drill chuck clamping device and method |
| CN111993060A (en) * | 2020-08-29 | 2020-11-27 | 黄涛 | Cutting and welding integrated equipment for large-diameter stainless steel pipes |
| CN111993060B (en) * | 2020-08-29 | 2021-11-02 | 山东欣怡翔精密机械制造有限公司 | Cutting and welding integrated equipment for large-diameter stainless steel pipes |
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