CN106378465A - Center - Google Patents

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Publication number
CN106378465A
CN106378465A CN201611118409.9A CN201611118409A CN106378465A CN 106378465 A CN106378465 A CN 106378465A CN 201611118409 A CN201611118409 A CN 201611118409A CN 106378465 A CN106378465 A CN 106378465A
Authority
CN
China
Prior art keywords
thimble
hole
bearing
taper
center
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
CN201611118409.9A
Other languages
Chinese (zh)
Other versions
CN106378465B (en
Inventor
唐辉
李铁军
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.)
Zhangjiajie Automobile Parts Manufacturing Co ltd
Original Assignee
Zhangjiajie Institute of Aeronautical Engineering
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 Zhangjiajie Institute of Aeronautical Engineering filed Critical Zhangjiajie Institute of Aeronautical Engineering
Priority to CN201611118409.9A priority Critical patent/CN106378465B/en
Publication of CN106378465A publication Critical patent/CN106378465A/en
Application granted granted Critical
Publication of CN106378465B publication Critical patent/CN106378465B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B23/00Tailstocks; Centres
    • B23B23/04Live centres
    • B23B23/045Live centres the centres being adjustable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

A center is a machine tool accessory . The center is composed of a center rear cover A, a center base B, a bearing pedestal C and a work head D, the bearing pedestal and the center base B are provided with a bearing chamber used for mounting of a thrust bearing, the bearing pedestal C and the work head are connected together, and therefore when a workpiece rotates, the work table and the bearing pedestal jointly rotate, however, the center base B cannot rotate, and is provided with a cutter rod hole, and through the cutter rod hole, under the condition that the center works, machining of the outer circle and the center can be synchronously completed. Therefore, the machining precision of some irregular parts and thin-wall parts is ensured, and the product can meet the tolerance requirement of drawing paper.

Description

A kind of thimble
Technical field
The invention belongs to engineering goods, especially relate to a kind of machine tool accessories.
Background technology
In the course of processing of some flange type or disc-like mechanical workpieces, if workpiece to be processed is cast member, or Person is workpiece shape itself is not plane, and particularly pressing close to scroll chuck or chuck is not plane, but has certain Gradient, claw contact area is little, easily flies out during such work pieces process, and the power that accommodates is big, and workpiece is possible to deform, and processes The product concentricity come is very poor, or workpiece is thin-wall workpiece, and such work pieces process is difficult, and the power that accommodates is excessive, and workpiece holds Yielding, in addition workpiece can fragmentation, accommodate power too small, workpiece easily flies out, and to this kind of product, during general factory process is all Withstood with thimble, but, part workpiece needs machining center position, is withstood with thimble and also has any problem, and is all first during general processing Processing excircles, face on the basis of cylindrical, using boring machine boring endoporus, and the adjustment of boring machine is time consuming, and needs in addition Jig, also almost, one or two is very unrealistic using boring machine for high-volume processing, even with boring machine, before plus The deformation that during work, workpiece occurs is also impossible to concentricity is completely secured, through our detection, with 516 type horizontal motors Front and rear cover as a example, the maximum of its screens outside diameter and minima, average phase difference 0.07mm, extremely can reach individually 0.15mm, in addition, aluminum, zinc, coppersmith part, easily forms built-up-edge, viscous knife in the course of processing, this kind of workpiece material is soft, viscous during processing Property again big, be easily worked not as good as steel product on the contrary, this kind of workpiece there is also a blessing difficult problem.
Content of the invention
Technical characteristic, a kind of thimble, thimble is mainly by thimble bonnet A, thimble pedestal B, bearing block C, work head D and thrust Bearing forms, and it is characterized in that:Its structure is as follows,
1), taper shank B1 its taper shank microcephaly have the corresponding screwed hole of A1 with thimble bonnet A, A1 section is screwed into the screw thread of taper shank microcephaly Hole;
2), B5 and C2 position constitute bearing chamber, for installed thrust bearing, positioning screw 1 is screwed into positioning screw hole C3, positions spiral shell Rod aperture C3 position is corresponding with locating slot B4, prevents bearing block C from dropping from thimble pedestal B;
3), fastening thread hole C1 and fastener hole D3 position be corresponding, head will be worked and bearing block is locked at by tie down screw 2 Together;
4), convex annulus D2 and locating slot C4 be corresponding, C4 and D2 is to ensure that the concentricity of work head and bearing block;
5), the position of forwardtransfer signal worm screwed hole D1, size, quantity be not to determine, when specifically used, process according to specific Product determines, accordingly, forwardtransfer signal worm 3 needs corresponding with DI;
6), taper shank B1 taper identical with the taper hole taper in spindle taper hole or tailstock hole;
7), have knife bar hole B3 on thimble pedestal B, the effect in knife bar hole is to put in knife bar, completes the processing of workpiece centre,
Thimble bonnet A is optional design, primarily to convenient dismounting bearing and perfusion lubricating oil, does not have both design needs When, thimble bonnet A can omit.
Brief description:Accompanying drawing 1 is thimble structure schematic diagram, and A is thimble bonnet, and B is thimble pedestal, and C is bearing block, and D is Work head, B1 is taper shank, and B2 is sky thorax body, and B3 is cutter holes, and 1 is positioning screw, and 2 is tie down screw, and 3 is forwardtransfer signal worm;
Accompanying drawing 2 is thimble structure schematic diagram, and A is thimble bonnet, and B is thimble pedestal, and C is bearing block, and D is work head, and B1 is cone Handle, B2 is sky thorax body, and B3 is cutter holes, and 1 is positioning screw, and 2 is tie down screw, and 3 is forwardtransfer signal worm, and 4 is thrust bearing;
The upper figure of accompanying drawing 3 is thimble pedestal schematic diagram, and figure below is thimble bonnet schematic diagram, and A1 is screw thread position, and A2 is arc position, and A3 is One word opening, B1 is taper shank, and B2 is sky thorax body, and B3 is knife bar hole, and B4 is locating slot, and B5 is bearing installation position;
Accompanying drawing 4 is bearing block positive and negative schematic diagram, and C1 is fastening thread hole, and C2 is bearing installation position, and C3 is positioning screw hole, C4 It is locating slot;
Accompanying drawing 5 is working head structure schematic diagram, and D1 is forwardtransfer signal worm screwed hole, and D2 is convex annulus, and D3 is fastener hole.
Specific embodiment:Applicant combines accompanying drawing and is explained:
The commonly thimble on tail stock in thimble, the thimble on tailstock is divided into live centre and dead center, and the present invention is alive One kind of thimble, thimble pedestal and bearing block are mounted with thrust bearing, and thimble pedestal can not rotate, and the forwardtransfer signal worm of workbench supports Clamping of workpieces, under the rotation of workpiece, work headband moving axis bearing rotates together, and forwardtransfer signal worm can be adjusted, so, even if to be added Work workpiece is irregular, also can push against, and due to being that claw accommodates, while being pushed against, workpiece would not fly out, and forwardtransfer signal worm Position in concrete operations, according to the processing request of product and shape rational deployment, for example, most of workpiece is not one Atresia, no protrude, no cave in, so, using this some holes, protruding or part of caving in does datum mark, can prevent workpiece and work Hairdo gives birth to relative movement, thin-walled parts, needs processing excircles and centre bearing seat simultaneously, now only needs to knife bar After hole position adjustment, cutter passes through knife bar hole, thus machining center bearing seat, so, the cylindrical and centre bearing of synchronous processing Seat, time processing puts in place, thereby may be ensured that machining accuracy.

Claims (1)

1. a kind of thimble, thimble is mainly made up of thimble bonnet A, thimble pedestal B, bearing block C, work head D and thrust bearing, its Feature is:Its structure is as follows,
1), taper shank B1 its taper shank microcephaly have the corresponding screwed hole of A1 with thimble bonnet A, A1 section is screwed into the screw thread of taper shank microcephaly Hole;
2), B5 and C2 position constitute bearing chamber, for installed thrust bearing, positioning screw 1 is screwed into positioning screw hole C3, positions spiral shell Rod aperture C3 position is corresponding with locating slot B4, prevents bearing block C from dropping from thimble pedestal B;
3), fastening thread hole C1 and fastener hole D3 position be corresponding, head will be worked and bearing block is locked at by tie down screw 2 Together;
4), convex annulus D2 and locating slot C4 be corresponding, C4 and D2 is to ensure that the concentricity of work head and bearing block;
5), the position of forwardtransfer signal worm screwed hole D1, size, quantity be not to determine, when specifically used, process according to specific Product determines, accordingly, forwardtransfer signal worm 3 needs corresponding with DI;
6), taper shank B1 taper identical with the taper hole taper in spindle taper hole or tailstock hole;
7), have knife bar hole B3 on thimble pedestal B, the effect in knife bar hole is to put in knife bar, completes the processing of workpiece centre,
Thimble bonnet A is optional design, primarily to convenient dismounting bearing and perfusion lubricating oil, does not have both design needs When, thimble bonnet A can omit.
CN201611118409.9A 2016-12-08 2016-12-08 A kind of thimble Active CN106378465B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611118409.9A CN106378465B (en) 2016-12-08 2016-12-08 A kind of thimble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611118409.9A CN106378465B (en) 2016-12-08 2016-12-08 A kind of thimble

Publications (2)

Publication Number Publication Date
CN106378465A true CN106378465A (en) 2017-02-08
CN106378465B CN106378465B (en) 2018-03-06

Family

ID=57957418

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611118409.9A Active CN106378465B (en) 2016-12-08 2016-12-08 A kind of thimble

Country Status (1)

Country Link
CN (1) CN106378465B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109848848A (en) * 2019-01-25 2019-06-07 成都众仁机械设备有限公司 A kind of grinding machine mill frame set
CN110843048A (en) * 2019-11-28 2020-02-28 贵州创宇生物科技有限公司 Positioning mechanism is used in processing of jumbo size log for agriculture and forestry

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137503A (en) * 1982-02-07 1983-08-16 Nakamura Seisakusho:Kk Chucking center for lathe
CN2030119U (en) * 1988-04-29 1989-01-04 林庆才 Three-purpose centre
CN2142052Y (en) * 1992-11-25 1993-09-15 孙斌 Hydraulic turbulence face toggle centre
CN202741755U (en) * 2012-06-01 2013-02-20 内蒙古北方重型汽车股份有限公司 Tip center drill
CN106180766A (en) * 2016-08-15 2016-12-07 山东力久特种电机股份有限公司 Centre drill and live center combined mechanism
CN206536037U (en) * 2016-12-08 2017-10-03 张家界航空工业职业技术学院 A kind of thimble

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137503A (en) * 1982-02-07 1983-08-16 Nakamura Seisakusho:Kk Chucking center for lathe
CN2030119U (en) * 1988-04-29 1989-01-04 林庆才 Three-purpose centre
CN2142052Y (en) * 1992-11-25 1993-09-15 孙斌 Hydraulic turbulence face toggle centre
CN202741755U (en) * 2012-06-01 2013-02-20 内蒙古北方重型汽车股份有限公司 Tip center drill
CN106180766A (en) * 2016-08-15 2016-12-07 山东力久特种电机股份有限公司 Centre drill and live center combined mechanism
CN206536037U (en) * 2016-12-08 2017-10-03 张家界航空工业职业技术学院 A kind of thimble

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109848848A (en) * 2019-01-25 2019-06-07 成都众仁机械设备有限公司 A kind of grinding machine mill frame set
CN110843048A (en) * 2019-11-28 2020-02-28 贵州创宇生物科技有限公司 Positioning mechanism is used in processing of jumbo size log for agriculture and forestry

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20180821

Address after: 427000 Yanghu Ping Road, C District, Zhangjiajie Economic Development Zone, Hunan

Patentee after: ZHANGJIAJIE AUTOMOBILE PARTS MANUFACTURING Co.,Ltd.

Address before: 427000 hot water pit, Dayong Bridge office, Yongding District, Zhangjiajie, Hunan

Patentee before: Zhangjiajie Institute of Aeronautical Engineering

TR01 Transfer of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A type of ejector pin

Granted publication date: 20180306

Pledgee: Zhangjiajie Rural Commercial Bank Co.,Ltd.

Pledgor: ZHANGJIAJIE AUTOMOBILE PARTS MANUFACTURING Co.,Ltd.

Registration number: Y2024980042658