CN104400042A - Wheel hub clamp automatic centering device and centering method thereof - Google Patents

Wheel hub clamp automatic centering device and centering method thereof Download PDF

Info

Publication number
CN104400042A
CN104400042A CN201410639524.5A CN201410639524A CN104400042A CN 104400042 A CN104400042 A CN 104400042A CN 201410639524 A CN201410639524 A CN 201410639524A CN 104400042 A CN104400042 A CN 104400042A
Authority
CN
China
Prior art keywords
chuck
radial
main shaft
hub
positioning
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.)
Granted
Application number
CN201410639524.5A
Other languages
Chinese (zh)
Other versions
CN104400042B (en
Inventor
王建强
刘宝兴
王纪刚
刘长亮
田鹏
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.)
TIANJIN LIZHONG WHEEL Co.,Ltd.
Original Assignee
TIANJIN DAIKA WHEEL HUB MANUFACTURING Co Ltd
TIANJIN LIZHONG WHEEL CO Ltd
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 TIANJIN DAIKA WHEEL HUB MANUFACTURING Co Ltd, TIANJIN LIZHONG WHEEL CO Ltd filed Critical TIANJIN DAIKA WHEEL HUB MANUFACTURING Co Ltd
Priority to CN201410639524.5A priority Critical patent/CN104400042B/en
Publication of CN104400042A publication Critical patent/CN104400042A/en
Application granted granted Critical
Publication of CN104400042B publication Critical patent/CN104400042B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/36Chucks with means for adjusting the chuck with respect to the working-spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • 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
    • B23B31/102Jaws, accessories or adjustment means
    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2215/00Details of workpieces
    • B23B2215/08Automobile wheels

Abstract

The invention relates to a wheel hub clamp automatic centering device and a centering method thereof. A plurality of groups of automatic centering assemblies are uniformly arranged on a chuck along the radial direction, each automatic centering assembly comprises a guide sleeve, a main shaft pull rod, a pull rod spring, a guide slide block, a guide groove, a positioning slide block and a positioning convex block, the guide sleeve is fixedly arranged at the center of the chuck along the axial direction, each main shaft pull rod is coaxially guided and arranged in the corresponding guide sleeve, the lower part of each main shaft pull rod is provided with the corresponding pull rod spring, each guide slide block is fixedly arranged at the upper end of the corresponding main shaft pull rod and is inclined from the center to the outer diameter, each guide slide block is glidingly embedded in the corresponding radial guide groove, the outer side of each guide groove is fixedly provided with the corresponding positioning slide block along the radial direction, each positioning slide block is guided and moved along the radial direction, and the upper end of each positioning slide block is provided with the corresponding positioning convex block. By adopting the improvement structure, the wheel hub clamp automatic centering device has the advantages that the center of circle of the radial positioning block is automatically determined within a certain range, the positioning accuracy is improved, a blank is automatically aligned, the discard caused by incorrect clamping is reduced, and the radial positioning accuracy of the blank is improved.

Description

A kind of automatic locating center device of Hub fixture and ask heart method
Technical field
The invention belongs to aluminum-alloy wheel manufacture field, the automatic locating center device of especially a kind of Hub fixture and ask heart method.
Background technology
At present, in hub for vehicle wheel process, the workpiece centering problem in machined, existing jig is axial float, and radial is fixing structure, because on-the-spot blank radial location size exists trickle inconsistent phenomenon, easily cause and be just installed not, even produce and scrap.
Through retrieval, find the patent application of following near field.
A kind of wheel engineering chuck (CN 201320641533) automatically asking the heart, comprise card, paw and press jaw seat, card is coaxially arranged on machine tool chief axis, card outer rim radial equipartition is hinged with three paws, these three fixing press claws are by the hydraulic oil cylinder driving be arranged on below card, card between described adjacent press jaw is all provided with the adjusting base of a rectangle, this adjusting base upper surface uniform being fixed with of equal spaced radial organizes positioning tooth more, the spacing of positioning tooth is fixed value, is fixed with a positioning block the radial location tooth upper end of identical group.The utility model can be enhanced productivity, and effectively reduce the bottleneck time, it is high that concentricity precision fixed by workpiece, improves the radial location precision of blank, thus promotes machining accuracy, improves the quality of products.
A kind of component locating center device and method (CN 100454083), it is the localization tool being equiped with a foundation element shapes and molding location edge face on pedestal, and make described localization tool be communicated with a negative pressure line, pedestal is equiped with two fixtures driven by synchronously moving mechanism in the outside of localization tool, and make the jaws position of two described fixtures correspond to the lateral margin of assembly, after assembly to be transferred to the localization tool of locating center device by shifting apparatus by feeding device, localization tool is assisted by assembly and is adsorbed on location edge face, two same dynamic fixtures are again by clamping in lateral, and make two jaws faces clip lateral margin at assembly, and make assembly can rely on the calibration of passing and making X-Y two axis that clips of two fixture sides, assembly is after the correct flatness of acquisition and center, accurately assembly is drawn by shifting apparatus again and transfer and assemble, and then reach precisely assembling and significantly improve the Practical Benefit of assembling yield.
Through contrast, there is relatively big difference in the technology contents of above published technology and present patent application, and the technical scheme of present patent application has and better asks heart effect, and it is more convenient to operate.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide that a kind of structure is simple, simple operation, the automatic locating center device of Hub fixture that is safe and reliable, high-quality and high-efficiency and ask heart method.
The present invention solves its technical problem and takes following technical scheme to realize:
The automatic locating center device of a kind of Hub fixture, comprise chuck, locating piece, location hook, limit sliding chutes and limited post, upper end, chuck periphery spaced radial is fixed with multiple locating piece, chuck lower end outside locating piece is all hinged with a location hook, it is characterized in that: on chuck, radial equipartition is provided with many groups and automatically asks heart assembly, this asks heart group to comprise fairlead automatically, main shaft pull bar, pull-rod spring, guide runner, gathering sill, positioning sliding block and locating convex block, axially a fairlead is fixed with at chuck hub, with axially oriented, a main shaft pull bar is installed in this fairlead, this main shaft pull bar bottom is provided with pull-rod spring, main shaft pull bar upper end is fixed with a guide runner tilted to external diameter by center, this guide runner slides and is inlaid in a radial gathering sill arranged, gathering sill outer radial is fixed with a positioning sliding block, this positioning sliding block radially-directed moves, this positioning sliding block upper end is shaped with locating convex block.
And be shaped with limit sliding chutes in the middle part of described location hook, this limit sliding chutes and the limited post be packed on chuck are slidably matched.
A kind of Hub fixture asks heart method automatically, it is characterized in that: step is as follows:
Wheel hub to be processed is placed on chuck by a;
B tentatively adjusts hub positions, the card outer rim lower end of multiple locating piece common support wheel hubs that upper end, chuck periphery radial direction is arranged;
C lock in place hook, drives location hook to the rotation of chuck axial direction, and the gib head of location hook pins in the card outer rim of wheel hub, the axial location of stationary hub;
D automatic capturing, automatically ask the main shaft pull bar under tension of core structure to move, main shaft pull rod shaft drives to mobile the guide runner be obliquely installed, and this guide runner drives gathering sill to radially slide, guide runner drives positioning sliding block to move radially, thus the radial position of accurate adjustment wheel hub to be processed;
E completes location.
And radial equipartition arranges many groups and automatically asks concentric mechanism in the card of described chuck, automatically ask concentric mechanism action simultaneously for these many groups.
And described concentric mechanism of automatically asking is 3 to 6 groups.
Advantage of the present invention and good effect are:
The present invention determines the center of circle within the specific limits automatically by making radial location block, makes blank automatic capturing, improves positioning precision, and what minimizing was not just producing because being installed scraps, and improves blank radial location precision.
Accompanying drawing explanation
Fig. 1 is cross section structure schematic diagram of the present invention;
Fig. 2 is another working state schematic representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
The automatic locating center device of a kind of Hub fixture, comprise chuck 8, locating piece 5, location hook 4, limit sliding chutes 7 and limited post 6, upper end, chuck periphery spaced radial is fixed with multiple locating piece, chuck lower end outside locating piece is all hinged with a location hook, limit sliding chutes is shaped with in the middle part of this location hook, this limit sliding chutes and the limited post be packed on chuck are slidably matched thus control the swaying direction of location hook, for locking the axial location of wheel hub 3 to be processed;
Innovative point of the present invention is:
Chuck is provided with and automatically asks core structure, comprise fairlead 9, main shaft pull bar 10, pull-rod spring 11, guide runner 2, gathering sill 1, positioning sliding block 12 and locating convex block 13, axially a fairlead is fixed with at chuck hub, with axially oriented, a main shaft pull bar is installed in this fairlead, this main shaft pull bar bottom is provided with pull-rod spring, main shaft pull bar upper end is fixed with a guide runner tilted to external diameter by center, this guide runner slides and is inlaid in a radial gathering sill arranged, gathering sill outer radial is fixed with a positioning sliding block, this positioning sliding block radially-directed moves, this positioning sliding block upper end is shaped with locating convex block.
Said apparatus ask heart method as follows:
Wheel hub to be processed is placed on chuck by a;
B tentatively adjusts hub positions, the card outer rim lower end of multiple locating piece common support wheel hubs that upper end, chuck periphery radial direction is arranged;
C lock in place hook, drives location hook to the rotation of chuck axial direction, and the gib head of location hook pins in the card outer rim of wheel hub, thus the axial location of stationary hub, stop wheel hub to move axially;
D automatic capturing, asks the main shaft pull bar under tension of core structure to move automatically, and main shaft pull rod shaft drives to mobile the guide runner be obliquely installed, and this guide runner drives gathering sill to radially slide, and guide runner drives positioning sliding block to move radially; The card of chuck can be arranged many groups and automatically asks concentric mechanism by radial equipartition, the present embodiment is set to 3 groups of radial equipartition in card, automatically concentric mechanism action is simultaneously asked for these many groups, thus the radial position of accurate adjustment wheel hub to be processed, ensure that wheel hub to be processed is coaxial with processing;
E completes location.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.

Claims (5)

1. the automatic locating center device of Hub fixture, comprise chuck, locating piece, location hook, limit sliding chutes and limited post, upper end, chuck periphery spaced radial is fixed with multiple locating piece, chuck lower end outside locating piece is all hinged with a location hook, it is characterized in that: on chuck, radial equipartition is provided with many groups and automatically asks heart assembly, this asks heart group to comprise fairlead automatically, main shaft pull bar, pull-rod spring, guide runner, gathering sill, positioning sliding block and locating convex block, axially a fairlead is fixed with at chuck hub, with axially oriented, a main shaft pull bar is installed in this fairlead, this main shaft pull bar bottom is provided with pull-rod spring, main shaft pull bar upper end is fixed with a guide runner tilted to external diameter by center, this guide runner slides and is inlaid in a radial gathering sill arranged, gathering sill outer radial is fixed with a positioning sliding block, this positioning sliding block radially-directed moves, this positioning sliding block upper end is shaped with locating convex block.
2. the automatic locating center device of Hub fixture according to claim 1, is characterized in that: be shaped with limit sliding chutes in the middle part of described location hook, and this limit sliding chutes and the limited post be packed on chuck are slidably matched.
3. Hub fixture asks a heart method automatically, it is characterized in that: step is as follows:
Wheel hub to be processed is placed on chuck by a;
B tentatively adjusts hub positions, the card outer rim lower end of multiple locating piece common support wheel hubs that upper end, chuck periphery radial direction is arranged;
C lock in place hook, drives location hook to the rotation of chuck axial direction, and the gib head of location hook pins in the card outer rim of wheel hub, the axial location of stationary hub;
D automatic capturing, automatically ask the main shaft pull bar under tension of core structure to move, main shaft pull rod shaft drives to mobile the guide runner be obliquely installed, and this guide runner drives gathering sill to radially slide, guide runner drives positioning sliding block to move radially, thus the radial position of accurate adjustment wheel hub to be processed;
E completes location.
4. the automatic locating center device of Hub fixture according to claim 3, is characterized in that: in the card of described chuck, radial equipartition arranges many groups and automatically asks concentric mechanism, automatically asks concentric mechanism action simultaneously for these many groups.
5. the automatic locating center device of Hub fixture according to claim 3, is characterized in that: described concentric mechanism of automatically asking is 3 to 6 groups.
CN201410639524.5A 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture and its seek heart method Active CN104400042B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410639524.5A CN104400042B (en) 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture and its seek heart method

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201410639524.5A CN104400042B (en) 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture and its seek heart method
CN201710981484.6A CN107571054A (en) 2014-11-13 2014-11-13 A kind of Hub fixture seeks heart method automatically
CN201710981455.XA CN107737960A (en) 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture with position limiting structure
CN201710996867.0A CN107626939A (en) 2014-11-13 2014-11-13 A kind of multigroup linkage of Hub fixture seeks heart method automatically

Related Child Applications (3)

Application Number Title Priority Date Filing Date
CN201710981484.6A Division CN107571054A (en) 2014-11-13 2014-11-13 A kind of Hub fixture seeks heart method automatically
CN201710981455.XA Division CN107737960A (en) 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture with position limiting structure
CN201710996867.0A Division CN107626939A (en) 2014-11-13 2014-11-13 A kind of multigroup linkage of Hub fixture seeks heart method automatically

Publications (2)

Publication Number Publication Date
CN104400042A true CN104400042A (en) 2015-03-11
CN104400042B CN104400042B (en) 2017-11-03

Family

ID=52637742

Family Applications (4)

Application Number Title Priority Date Filing Date
CN201710981484.6A Withdrawn CN107571054A (en) 2014-11-13 2014-11-13 A kind of Hub fixture seeks heart method automatically
CN201710996867.0A Withdrawn CN107626939A (en) 2014-11-13 2014-11-13 A kind of multigroup linkage of Hub fixture seeks heart method automatically
CN201710981455.XA Withdrawn CN107737960A (en) 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture with position limiting structure
CN201410639524.5A Active CN104400042B (en) 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture and its seek heart method

Family Applications Before (3)

Application Number Title Priority Date Filing Date
CN201710981484.6A Withdrawn CN107571054A (en) 2014-11-13 2014-11-13 A kind of Hub fixture seeks heart method automatically
CN201710996867.0A Withdrawn CN107626939A (en) 2014-11-13 2014-11-13 A kind of multigroup linkage of Hub fixture seeks heart method automatically
CN201710981455.XA Withdrawn CN107737960A (en) 2014-11-13 2014-11-13 A kind of automatic locating center device of Hub fixture with position limiting structure

Country Status (1)

Country Link
CN (4) CN107571054A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923429A (en) * 2015-06-03 2015-09-23 中信戴卡股份有限公司 Special wheel spraying support
CN106271711A (en) * 2016-08-29 2017-01-04 天津立中车轮有限公司 A kind of double oil cylinder self-centering fixture
CN109454479A (en) * 2018-11-21 2019-03-12 西安科技成果转化工程有限公司 A kind of fixed equipment and its application method of Automobile steel ring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110394471B (en) * 2019-08-16 2021-03-30 宁波德玛智能机械有限公司 Reliable hub chuck

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463208A (en) * 1966-09-20 1969-08-26 Eugene W Turpin Wheel centering tool
CA2361033A1 (en) * 2000-11-07 2002-05-07 Howa Machinery, Ltd. A holding chuck for a tire-wheel with a chatter-suppressing device
CN102581653A (en) * 2012-02-27 2012-07-18 中信戴卡轮毂制造股份有限公司 Wheel radial positioning device
CN202571356U (en) * 2012-04-18 2012-12-05 广州戴卡旭铝铸件有限公司 Centering clamp fixture for processing wheel hub
CN202985140U (en) * 2012-12-12 2013-06-12 滨州盟威戴卡轮毂有限公司 Hub positioning device
CN204276942U (en) * 2014-11-13 2015-04-22 天津立中车轮有限公司 The automatic locating center device of a kind of Hub fixture

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1750918A1 (en) * 1989-10-11 1992-07-30 Краснодарское Станкостроительное Производственное Объединение Им.Г.М.Седина Device for securing railway wheel
CN201175839Y (en) * 2008-01-23 2009-01-07 中机十院国际工程有限公司 Cramp for turning end plane of cold rolling piece of hub bearing outer sleeve
CN201423451Y (en) * 2009-03-18 2010-03-17 江苏天宏机械工业有限公司 Multi-specification debugging finger chuck
CN202278429U (en) * 2011-10-26 2012-06-20 洛阳北方企业集团有限公司 Centering clamp for machining hub
CN102672224B (en) * 2012-04-18 2013-12-11 广州戴卡旭铝铸件有限公司 Fixed core clamping tool for processing wheel hub
CN202701432U (en) * 2012-07-27 2013-01-30 福建成功机床有限公司 Vertical double-cylinder three-flap hub turning fixture
CN102896352A (en) * 2012-10-15 2013-01-30 江苏天宏自动化科技有限公司 Positioning self-centering main shaft chuck capable of overturning plus or minus 180 degrees
CN203471392U (en) * 2013-08-12 2014-03-12 泗洪华明机械制造有限公司 Locating clamp for hub inner hole processing
CN203526604U (en) * 2013-10-17 2014-04-09 保定市立中车轮制造有限公司 Linkage adjusting chuck
CN203526597U (en) * 2013-10-17 2014-04-09 保定市立中车轮制造有限公司 Center positioning seat of linkage adjustment chuck
CN203649946U (en) * 2013-11-26 2014-06-18 大亚车轮制造有限公司 Hub locating device
CN104029063B (en) * 2014-05-29 2017-01-11 浙江利帆家具有限公司 Clamping method for wheel-shaped work-pieces

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463208A (en) * 1966-09-20 1969-08-26 Eugene W Turpin Wheel centering tool
CA2361033A1 (en) * 2000-11-07 2002-05-07 Howa Machinery, Ltd. A holding chuck for a tire-wheel with a chatter-suppressing device
CN102581653A (en) * 2012-02-27 2012-07-18 中信戴卡轮毂制造股份有限公司 Wheel radial positioning device
CN202571356U (en) * 2012-04-18 2012-12-05 广州戴卡旭铝铸件有限公司 Centering clamp fixture for processing wheel hub
CN202985140U (en) * 2012-12-12 2013-06-12 滨州盟威戴卡轮毂有限公司 Hub positioning device
CN204276942U (en) * 2014-11-13 2015-04-22 天津立中车轮有限公司 The automatic locating center device of a kind of Hub fixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923429A (en) * 2015-06-03 2015-09-23 中信戴卡股份有限公司 Special wheel spraying support
CN106271711A (en) * 2016-08-29 2017-01-04 天津立中车轮有限公司 A kind of double oil cylinder self-centering fixture
CN109454479A (en) * 2018-11-21 2019-03-12 西安科技成果转化工程有限公司 A kind of fixed equipment and its application method of Automobile steel ring

Also Published As

Publication number Publication date
CN107737960A (en) 2018-02-27
CN104400042B (en) 2017-11-03
CN107571054A (en) 2018-01-12
CN107626939A (en) 2018-01-26

Similar Documents

Publication Publication Date Title
CN104400042A (en) Wheel hub clamp automatic centering device and centering method thereof
CN202006288U (en) Fast clamping chuck
CN107097086A (en) Force feedback type cylindrical shape thin-wall member processing support device
CN202490987U (en) Tool for fast clamping processed gear rings of gear shaping machine
CN104175149A (en) Shaft product clamping device and method
CN103722393A (en) Machining clamp for automobile steering knuckle flange end face holes
CN202079416U (en) Twin-cone externally-holding clamp
CN102248609A (en) Self-centering synchronously clamped silicon rod butting machine
CN109128885A (en) Thin-wall tube-shaped excircle of workpiece turning clamping tooling and clamping method
CN102267199A (en) Self-centering synchronous clamping device for silicon rod
CN203712319U (en) Automatic positioning clamp for ellipsoidal head
CN202498174U (en) Closing die for self-locking nut
CN203993176U (en) A kind of wedge-type centering and clamping mechanism
CN202021351U (en) Large conic boring fixture
CN203751733U (en) Fixture for turning external cambered surfaces of long shaft type cylindrical workpieces
CN102430950A (en) Self-centering blank tensioning mechanism
CN204276942U (en) The automatic locating center device of a kind of Hub fixture
CN204700390U (en) The numerical control gear-hobbing clamp of gear shaft
CN105252023B (en) A kind of machine tool chief axis
CN201755780U (en) Machine tool fixture
CN202683722U (en) Dual-direction coaxial hole machining device
CN205914777U (en) Internal expanding type dabber
CN202278426U (en) Blank self-centering and tensioning mechanism
CN210306903U (en) Outer cylinder clamping device of centrifugal pump
CN203887550U (en) Gear hobbing die capable of changing clamping sleeve rapidly

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 300457 in Tianjin Binhai Economic and Technological Development Zone West Guanghua Street No. 58

Applicant after: Tianjin Lizhong Wheel Co.,Ltd.

Applicant after: TIANJIN LIZHONG AUTOMOBILE ALUMINIUM ALLOY FITTING CO., LTD.

Address before: 300457 in Tianjin Binhai Economic and Technological Development Zone West Guanghua Street No. 58

Applicant before: Tianjin Lizhong Wheel Co.,Ltd.

Applicant before: Tianjin Daika Wheel Hub Manufacturing Co., Ltd.

COR Change of bibliographic data
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20170327

Address after: 300457 Tianjin economic and Technological Development Zone in the Western District Guanghua Street, No. 58

Applicant after: Tianjin Lizhong group Limited by Share Ltd

Address before: 300457 in Tianjin Binhai Economic and Technological Development Zone West Guanghua Street No. 58

Applicant before: Tianjin Lizhong Wheel Co.,Ltd.

Applicant before: TIANJIN LIZHONG AUTOMOBILE ALUMINIUM ALLOY FITTING CO., LTD.

GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: No. 58, Guanghua Street, West District, economic and Technological Development Zone, Binhai New Area, Tianjin, 300450

Patentee after: TIANJIN LIZHONG WHEEL Co.,Ltd.

Address before: No. 58, Guanghua Street, West District, Tianjin Economic and Technological Development Zone, 300457

Patentee before: TIANJIN LIZHONG GROUP Co.,Ltd.