CN106513732A - Self-centering multi-claw chuck device - Google Patents

Self-centering multi-claw chuck device Download PDF

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Publication number
CN106513732A
CN106513732A CN201611020869.8A CN201611020869A CN106513732A CN 106513732 A CN106513732 A CN 106513732A CN 201611020869 A CN201611020869 A CN 201611020869A CN 106513732 A CN106513732 A CN 106513732A
Authority
CN
China
Prior art keywords
workpiece
centering
self
card
clamping
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201611020869.8A
Other languages
Chinese (zh)
Inventor
龙纯
彭志虹
舒勇东
刘洪文
卓勇军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CETC 48 Research Institute
Original Assignee
CETC 48 Research Institute
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 CETC 48 Research Institute filed Critical CETC 48 Research Institute
Priority to CN201611020869.8A priority Critical patent/CN106513732A/en
Publication of CN106513732A publication Critical patent/CN106513732A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16291Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially with a centre
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/103Retention by pivotal elements, e.g. catches, pawls

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

The invention discloses a self-centering multi-claw chuck device which is used for being matched with a machine tool after clamping a workpiece so as to enable the machine tool to machine the clamped workpiece. The self-centering multi-claw chuck device comprises a chuck base, the chuck base is sequentially provided with multiple clamping claws in the circumferential direction, a fixing cavity where the workpiece is placed is defined by the multiple clamping claws, the multiple clamping claws can independently move forwards and backwards in the radial direction of the chuck base so as to clamp the workpiece in the fixing cavity, the bottom of the fixing cavity is provided with a centering center assembly used for being matched with a tailstock center on the machine tool, and the central axis of the centering center assembly coincides with the central axis of the tailstock center. In the working process, the tailstock center and the centering center assembly abut against the center points at the two ends of the workpiece correspondingly, then, the multiple clamping claws are sequentially adjusted to clamp and fix the workpiece, and therefore the workpiece is machined after being centered. The self-centering multi-claw chuck device has the advantages of being simple and compact in structure, low in production cost, convenient and fast to operate, and capable of effectively ensuring the coaxiality of two-end inner hole and outer circle machining of the workpiece, particularly an irregular workpiece.

Description

A kind of self-centering multi-jaw chuck device
Technical field
Present invention relates generally to photovoltaic apparatus field, and in particular to a kind of self-centering multi-jaw for processing photovoltaic apparatus Chuck assembly.
Background technology
In photovoltaic apparatus field, can be fixed using clamping is carried out to chuck to workpiece to be processed, then using processing Lathe is processed operation to securing workpiece.Work pieces process requires very high to the axiality at two ends.For example can currently use Processing slender axles, scroll chuck is with the function of feeling relieved to cylindrical work, Neng Gouyou for scroll chuck clamp cylinders shape workpiece Effect ensures the axiality at processing round piece two ends.
But as shown in figure 1, when the profile of some workpiece be not cylinder, but four directions or other complicated shapes, and The processing of these special-shaped workpieces be also required to two ends endoporus, it is cylindrical all coaxial when, processing operation will have difficulties.Because three-jaw card Although disk is with the effect for centering, circular pieces can only be pressed from both sides, if folder special-shaped workpiece, is it cannot be guaranteed that special-shaped workpiece two ends Endoporus working axiality.And if using the form of Double Tops, again can not processing profiled workpiece endoporus.If set using other It is standby(Such as Five-axis NC Machining Center), expense is compared with expensive and difficulty of processing is big.
Therefore, how to invent a kind of device so which can clamp cylindrical work on the premise of low cost, not only, and And special-shaped workpiece can also be clamped, special-shaped workpiece two ends endoporus, Excircle machining axiality is can effectively ensure that, one is had become urgently Problem to be solved.
The content of the invention
Technical problem solved by the invention is:For the problem that prior art is present, there is provided a kind of simple structure is tight Gather, low production cost, convenient to operation, especially special-shaped workpiece two ends endoporus, Excircle machining are same to can effectively ensure that workpiece The self-centering multi-jaw chuck device for processing photovoltaic apparatus of axle degree.
For solving above-mentioned technical problem, the present invention is employed the following technical solutions:
A kind of self-centering multi-jaw chuck device, for coordinating so that work of the machining tool to clamping with machining tool after clamping workpiece Part is processed, and including chuck pedestal, on the chuck pedestal, circumferentially mode has been sequentially arranged multiple claws, multiple cards Pawl surrounds the lock chamber to be formed for placing workpiece, and multiple claws individually can be moved before and after the radial direction of chuck pedestal The dynamic workpiece for fixing intracavity for clamping, the bottom of the lock chamber be provided with one for machining tool on tailstock centre The top component of centering being engaged, the central axis of the top component of the centering and the central axes of tailstock centre, operation Shi Suoshu tailstock centres and the top component of centering are respectively against adjusting multiple claws again successively by work after the central point at workpiece two ends Part clamping fixes, for being processed operation after feeling relieved to workpiece again.
As a further improvement on the present invention, the top component of the centering includes taper top tip, the taper top tip Bottom be provided with fixed part, it is removably solid for top component of feeling relieved that the fixed part is provided with multiple first fixing holes On chuck pedestal.
As a further improvement on the present invention, the upper end of each claw be equipped with for during clamping with absorption surface Card-tight part, the card-tight part is mounted on claw by fixture, for the workpiece for different size shape more The card-tight part for changing corresponding specification shape is fixed with carrying out clamping.
As a further improvement on the present invention, more than one second fixing hole is equipped with each described card-tight part, with The card-tight part is made to be fixed on claw by screw element.
As a further improvement on the present invention, each described card-tight part is made by soft alloy, is preferably made of aluminium.
As a further improvement on the present invention, the both sides of each claw bottom are equipped with the spacing slip of two protrusions Bar, two spacing slider bar Parallel Symmetrics are arranged, and are radially offered multiple with spacing cunning on the chuck pedestal The spacing sliding groove that dynamic bar coordinates, each described claw are slided for clamping in spacing sliding groove by spacing slider bar The workpiece of fixed intracavity.
As a further improvement on the present invention, on the chuck pedestal, circumferentially mode is averagely disposed with four cards successively Pawl, for from four direction clamp workpiece.
Compared with prior art, it is an advantage of the current invention that:
(1)The self-centering multi-jaw chuck device of the present invention, due to the central axis of top component and the center of tailstock centre of feeling relieved Dead in line so that whether which end of processing profiled workpiece, this device first can be felt relieved to workpiece, be pressed from both sides after centering again Fastening carries out following process operation.Special-shaped workpiece two ends endoporus, cylindrical processing is enabled to keep very accurately axiality, Machining yield is high.
(2)The self-centering multi-jaw chuck device of the present invention, as multiple claws individually can be adjusted, i.e. the shifting of each jaw Dynamic stroke freely can be determined.This claw for being distinct from scroll chuck can only synchronizing moving so that this device can not only be clamped The cylindrical workpiece of profile rule, it is also possible to clamp the irregular special-shaped workpiece of profile, good clamping effect, when being effectively ensured processing Stability and Accuracy of finish.
(3)The self-centering multi-jaw chuck device of the present invention, it is simple and compact for structure, low production cost, convenient to operation, lead to Cross and coordinate with the tailstock centre on machining tool, the end processing endoporus in special-shaped workpiece can be realized, efficiently solved existing Double Tops form can not process the problem of workpiece end endoporus.
(4)The self-centering multi-jaw chuck device of the present invention, can be for the workpiece replacing corresponding specification shape of different size shape The card-tight part of shape so that card-tight part is higher to the fitness between special-shaped workpiece, clamps more firm.And when card-tight part occurs mill During damage, card-tight part can be changed in time so that claw is always maintained at preferable holding function, the coaxial of processing operation is effectively ensured Degree accuracy.
Description of the drawings
Fig. 1 is the stereochemical structure principle schematic of special-shaped workpiece.
Fig. 2 is principle schematic diagram. of the self-centering multi-jaw chuck device of the present invention when special-shaped workpiece is clamped.
Fig. 3 is the stereochemical structure principle schematic of the chuck pedestal of the present invention.
Fig. 4 is the stereochemical structure principle schematic of the top component of centering of the present invention.
Fig. 5 is the stereochemical structure principle schematic of the claw of the present invention.
Fig. 6 is stereochemical structure principle schematic one of the card-tight part of claw of the present invention in embodiment.
Fig. 7 is stereochemical structure principle schematic two of the card-tight part of claw of the present invention in embodiment.
Marginal data:
1st, chuck pedestal;11st, spacing sliding groove;2nd, claw;21st, card-tight part;211st, the second fixing hole;22nd, spacing slider bar;3、 Tailstock centre;4th, the top component of centering;41st, taper top tip;42nd, fixed part;421st, the first fixing hole.
Specific embodiment
The present invention is described in further detail below in conjunction with specific embodiments and the drawings.
As shown in Figures 1 to 7, the present invention provides a kind of self-centering multi-jaw chuck device, for after clamping workpiece and processing Lathe coordinates so that machining tool is processed to the workpiece of clamping.Self-centering multi-jaw chuck device includes chuck pedestal 1, chuck On pedestal 1, circumferentially mode has been sequentially arranged multiple claws 2, and multiple claws are 2-in-1 to enclose the lock chamber to be formed for placing workpiece, many Individual claw 2 individually can move forward and backward the workpiece for fixing intracavity for clamping along the radial direction of chuck pedestal 1, lock chamber Bottom is provided with a top component 4 of centering for being engaged with the tailstock centre 3 on machining tool, top component 4 of feeling relieved The central axes of central axis and tailstock centre 3, during operation, tailstock centre 3 and top component 4 of feeling relieved are respectively against workpiece Adjusted successively after the central point at two ends again multiple claws 2 workpiece clamping is fixed, for being carried out after feeling relieved to workpiece again Processing operation.
When the workpiece for needing processing is that operator can first find the central point at special-shaped workpiece two ends for special-shaped workpiece, Then put the workpiece in lock chamber so that the pointed tip of the top component 4 of feeling relieved of lock chamber bottom withstands special-shaped workpiece one end Central point, then the correspondence of tailstock centre 3 on machining tool is withstood the central point of the special-shaped workpiece other end.After withstanding, then by Special-shaped workpiece clamping is fixed by the individual multiple claws 2 that adjust.Then the tailstock centre 3 on machining tool is removed again, using lathe The end is processed, for example, the inner hole outer circularity portion such as figure is processed in end.
After machining, claw 2 is unclamped, then special-shaped workpiece turns around so that the pointed tip top of top component 4 of feeling relieved Firmly special-shaped workpiece has just machined the central point of one end, then the correspondence of tailstock centre 3 on machining tool is withstood special-shaped workpiece The central point of the unprocessed other end, after withstanding, then adjusts multiple claws 2 one by one and fixes special-shaped workpiece clamping, then The tailstock centre 3 on machining tool is removed again, the unprocessed one end end of special-shaped workpiece is processed using lathe.Pass through Special scientific design, has the advantage that above:
One is due to the central axis of top component 4 and the central axes of tailstock centre 3 of feeling relieved so that whether processed different Which end of shape workpiece, this device first can be felt relieved to workpiece, and being fixedly clamped after centering again carries out following process operation.Make Special-shaped workpiece two ends endoporus, cylindrical processing can keep very accurately axiality, machining yield is high.Certainly, this device Since special-shaped workpiece can be clamped, the workpiece of conventional form specification also can be good at clamping.
Two individually can be adjusted due to multiple claws 2, i.e., the shift motion of each jaw 2 freely can be determined.This is not The claw for being same as scroll chuck can only synchronizing moving so that this device can not only clamp the cylindrical workpiece of profile rule, Can clamp the irregular special-shaped workpiece of profile, good clamping effect, the stability and Accuracy of finish when being effectively ensured processing.
Three is the simple compact, low production cost of this apparatus structure, convenient to operation, by with machining tool on tailstock Top 3 coordinate, and can realize the end processing endoporus in special-shaped workpiece, efficiently solve existing Double Tops form and can not process workpiece The problem of end endoporus.
As shown in figure 4, further, in the preferred embodiment, top component 4 of feeling relieved includes taper top tip 41, taper top The bottom of tip 41 is provided with fixed part 42, and fixed part 42 is provided with multiple first fixing holes 421 for top component 4 of feeling relieved It is detachably secured on chuck pedestal 1.By such setting, the maintenance of top component 4 of being easy to feel relieved, when taper top tip During 41 appearance abrasion, the top component 4 of centering can be changed in time, so that the central axis and tail of top component 4 of feeling relieved is effectively ensured The central axes of seat top 3, are finally effectively ensured the axiality accuracy of processing operation.
As shown in Figures 5 to 7, further, in the preferred embodiment, the upper end of each claw 2 is equipped with for during clamping With the card-tight part 21 of absorption surface, card-tight part 21 is mounted on claw 2 by fixture, for for different size The card-tight part 21 of the workpiece replacing corresponding specification shape of shape is fixed with carrying out clamping.In the present embodiment, each card-tight part 21 On be equipped with more than one second fixing hole 211 so that card-tight part 21 is fixed on claw 2 by screw element.By the above Special scientific design, has the advantage that:One is can to clamp different special-shaped workpieces due to this device, in order to keep to different The firm clamping of shape workpiece, it is ensured that the axiality accuracy of processing operation, the card-tight part 21 of each claw 2 can be designed as various The end of form, such as Fig. 6 is in semi-cylindrical form, or the concave portion's form in end of Fig. 7, or other various forms, So that installation is adjusted flexibly in operation, for the card-tight part 21 of the workpiece replacing corresponding specification shape of different size shape so that Card-tight part 21 is higher to the fitness between special-shaped workpiece, clamps more firm.Two be by arranging dismountable card-tight part 21, when When card-tight part 21 occurs abrasion, card-tight part 21 can be changed in time so that claw 2 is always maintained at preferable holding function, effectively Ensure the axiality accuracy of processing operation.
Further, in the preferred embodiment, each card-tight part 21 is made by soft alloy, soft alloy can for copper, Aluminum, albronze etc., are preferably made of aluminium.Due in 21 direct effect of card-tight part and workpiece, by card-tight part 21 by soft alloy Make, one can be, while firm clamping is ensured, effectively to mitigate the degree of injury to workpiece.Two is to make card-tight part 21 It is even closer with absorption surface, clamp more firm.
As shown in Fig. 3, Fig. 5, further, in the preferred embodiment, on chuck pedestal 1, circumferentially mode is averagely arranged successively Have four claws 2, for clamping workpiece from four direction, clamping effect is more preferable.The both sides of each 2 bottom of claw are equipped with two The spacing slider bar 22 of bar protrusion, two 22 Parallel Symmetrics of spacing slider bar are arranged, and are radially offered on chuck pedestal 1 Multiple spacing sliding grooves 11 coordinated with spacing slider bar 22, each claw 2 is by spacing slider bar 22 in spacing sliding groove Slide in 11 and fix the workpiece of intracavity for clamping, can effectively ensure that claw 2 does not occur deviation, clamping effect more preferably, has Effect ensure that the axiality accuracy of processing operation.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment, All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention Scope.

Claims (7)

1. a kind of self-centering multi-jaw chuck device, for coordinating so that machining tool is to clamping with machining tool after clamping workpiece Workpiece is processed, it is characterised in that including chuck pedestal(1), the chuck pedestal(1)On circumferentially mode be sequentially arranged Multiple claws(2), multiple claws(2)Surround the lock chamber to be formed for placing workpiece, multiple claws(2)Can be single Solely along chuck pedestal(1)The movable workpiece for fixing intracavity for clamping of radial direction, the bottom of the lock chamber sets Have one for machining tool on tailstock centre(3)The top component of centering being engaged(4), the top component of feeling relieved (4)Central axis and tailstock centre(3)Central axes, tailstock centre during operation(3)With top component of feeling relieved (4)Respectively against adjusting multiple claws again successively after the central point at workpiece two ends(2)Workpiece clamping is fixed, for workpiece It is processed operation after being felt relieved again.
2. self-centering multi-jaw chuck device according to claim 1, it is characterised in that the top component of the centering(4)Bag Include taper top tip(41), the taper top tip(41)Bottom be provided with fixed part(42), the fixed part(42)It is provided with Multiple first fixing holes(421)For top component of feeling relieved(4)It is detachably secured to chuck pedestal(1)On.
3. self-centering multi-jaw chuck device according to claim 1 and 2, it is characterised in that each described claw(2)It is upper End is equipped with for card-tight part during clamping with absorption surface(21), the card-tight part(21)Removably installed by fixture In claw(2)Above, for the card-tight part of the workpiece replacing corresponding specification shape for different size shape(21)To carry out clamping It is fixed.
4. self-centering multi-jaw chuck device according to claim 3, it is characterised in that each described card-tight part(21)It is upper equal It is provided with more than one second fixing hole(211), so that the card-tight part(21)Claw is fixed on by screw element(2)On.
5. self-centering multi-jaw chuck device according to claim 3, it is characterised in that each described card-tight part(21)By Soft alloy is made, and is preferably made of aluminium.
6. self-centering multi-jaw chuck device according to claim 3, it is characterised in that each described claw(2)Bottom Both sides are equipped with the spacing slider bar of two protrusions(22), two spacing slider bars(22)Parallel Symmetric is arranged, the card Disk pedestal(1)On radially offer it is multiple with spacing slider bar(22)The spacing sliding groove for coordinating(11), described in each Claw(2)Pass through spacing slider bar(22)In spacing sliding groove(11)Interior slip fixes the workpiece of intracavity for clamping.
7. self-centering multi-jaw chuck device according to claim 3, it is characterised in that the chuck pedestal(1)Upper edge circle All modes are averagely disposed with four claws successively(2), for from four direction clamp workpiece.
CN201611020869.8A 2016-11-21 2016-11-21 Self-centering multi-claw chuck device Pending CN106513732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611020869.8A CN106513732A (en) 2016-11-21 2016-11-21 Self-centering multi-claw chuck device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611020869.8A CN106513732A (en) 2016-11-21 2016-11-21 Self-centering multi-claw chuck device

Publications (1)

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CN106513732A true CN106513732A (en) 2017-03-22

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107914325A (en) * 2017-11-07 2018-04-17 湖州艺居整木家居有限公司 Double collet device for timber processing
CN107932646A (en) * 2018-03-08 2018-04-20 湖州艺居整木家居有限公司 A kind of timber truning fixture
CN108788204A (en) * 2018-07-19 2018-11-13 浙江辛子精工机械股份有限公司 A kind of automotive hub outward flange processing positioning and clamping device
CN110238419A (en) * 2019-07-16 2019-09-17 潍坊威豹机械有限责任公司 A kind of multi-work piece clamping self-centering chuck
CN110385453A (en) * 2019-06-20 2019-10-29 中船澄西船舶修造有限公司 Process the tooling of component peculiar to vessel and the chuck comprising it
CN110976933A (en) * 2019-12-10 2020-04-10 安庆师范大学 Machine tool for mechanical finish machining
CN112588917A (en) * 2020-12-28 2021-04-02 嘉兴亿腾自动化科技有限公司 A turn-ups equipment for bimetal bearing processing
CN113798874A (en) * 2021-09-30 2021-12-17 成都航天万欣科技有限公司 Multi-station centering tool and centering method
CN118357623A (en) * 2024-06-20 2024-07-19 中冶重工(唐山)有限公司 Centering clamping device and method for high-pressure movable elbow

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107914325A (en) * 2017-11-07 2018-04-17 湖州艺居整木家居有限公司 Double collet device for timber processing
CN107932646A (en) * 2018-03-08 2018-04-20 湖州艺居整木家居有限公司 A kind of timber truning fixture
CN108788204A (en) * 2018-07-19 2018-11-13 浙江辛子精工机械股份有限公司 A kind of automotive hub outward flange processing positioning and clamping device
CN110385453B (en) * 2019-06-20 2020-12-29 中船澄西船舶修造有限公司 Tooling for machining marine components and chuck comprising same
CN110385453A (en) * 2019-06-20 2019-10-29 中船澄西船舶修造有限公司 Process the tooling of component peculiar to vessel and the chuck comprising it
CN110238419A (en) * 2019-07-16 2019-09-17 潍坊威豹机械有限责任公司 A kind of multi-work piece clamping self-centering chuck
CN110238419B (en) * 2019-07-16 2024-02-27 潍坊威豹机械有限责任公司 Multi-workpiece clamping self-centering chuck
CN110976933A (en) * 2019-12-10 2020-04-10 安庆师范大学 Machine tool for mechanical finish machining
CN112588917A (en) * 2020-12-28 2021-04-02 嘉兴亿腾自动化科技有限公司 A turn-ups equipment for bimetal bearing processing
CN112588917B (en) * 2020-12-28 2022-08-26 嘉兴亿腾自动化科技有限公司 A turn-ups equipment for bimetal bearing processing
CN113798874A (en) * 2021-09-30 2021-12-17 成都航天万欣科技有限公司 Multi-station centering tool and centering method
CN113798874B (en) * 2021-09-30 2023-12-26 成都航天万欣科技有限公司 Multi-station centering tool and centering method
CN118357623A (en) * 2024-06-20 2024-07-19 中冶重工(唐山)有限公司 Centering clamping device and method for high-pressure movable elbow

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