CN105234754A - External grinding tool for thin-walled cylindrical part - Google Patents

External grinding tool for thin-walled cylindrical part Download PDF

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Publication number
CN105234754A
CN105234754A CN201510638497.4A CN201510638497A CN105234754A CN 105234754 A CN105234754 A CN 105234754A CN 201510638497 A CN201510638497 A CN 201510638497A CN 105234754 A CN105234754 A CN 105234754A
Authority
CN
China
Prior art keywords
grinding
thin
threaded mandrel
frock
clamp
Prior art date
Application number
CN201510638497.4A
Other languages
Chinese (zh)
Inventor
罗成
余伦
高七一
王洁璐
Original Assignee
中国科学院光电技术研究所
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 中国科学院光电技术研究所 filed Critical 中国科学院光电技术研究所
Priority to CN201510638497.4A priority Critical patent/CN105234754A/en
Publication of CN105234754A publication Critical patent/CN105234754A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • B24B41/061Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
    • B24B41/062Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/04Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition

Abstract

The invention discloses an external grinding tool for a thin-walled cylindrical part and belongs to the field of precise machining. According to the external grinding tool, the thin-walled cylindrical part is clamped in the clamping modes of end face positioning and axial tensioning when the thin-walled cylindrical part is ground. The grinding tool comprises a mandrel (1) with threads, fastening screws (2), the ground part (3), a base plate (4) and a compression nut (5). The external grinding tool for the thin-walled cylindrical part is simple in structure and convenient to operate; radial clamping force can be prevented from being generated when the thin-walled cylindrical part is ground, and the problem that the precise grinding precision of the thin-walled cylindrical part is affected due to deformation of the part caused by radial clamping force is effectively solved.

Description

A kind of cylindricalo grinding frock of thin wall cylinder part

Technical field

The invention belongs to precision optical machinery manufacture field, be specifically related to a kind of cylindricalo grinding frock of thin wall cylinder part.

Background technology

The accurate grinding problem of thin cylinder part receives the concern of precision optical machinery field colleague always.In mechanical processing process, the uneven plastic deformation that the external force that is installed causes produces accessory size and the overproof main cause of the accuracy of form and position.

Chucking method during grinding part is a lot, and modal is the mode adopting scroll chuck to be installed, and now part is by radial load effect, firmly excessive during clamping, cause part ovalize or more serious situation to be polygon, hold not tight, likely make loose-parts when turning and scrap.Another kind of mode is by grinding inner bore of part match grinding mandrel, then the mode that is installed top on mandrel is withstood by grinding machine is top, this kind of mode is applicable to the accurate grinding of the stronger part of self rigidity, for thin cylinder part, because match grinding mandrel can produce radial load, cause part, when non-grinding, certain distortion just occurs, for the cylindricalo grinding of high-precision part, this method is also inapplicable.

For the feature of self poor rigidity of thin cylinder part, during particularly grinding high accuracy precision component, the mode that is installed during grinding is the key factor of restriction accessory size and the accuracy of form and position always, grinding mandrel is changed through a lot, such as: reduce coordinating tapering, changing on mandrel the center hole degree of depth etc. of grinding inner bore of part and mandrel, all fundamentally solution radial direction power that is installed impact that thin-walled parts is out of shape.

Summary of the invention

The technical problem to be solved in the present invention is: for the feature of self poor rigidity of thin cylinder part, proposes a kind of cylindricalo grinding frock of thin wall cylinder part.

The technical solution used in the present invention is: a kind of cylindricalo grinding frock of thin wall cylinder part, and this frock comprises threaded mandrel, clamp-screw, grinding part, backing plate and clamp nut; The using method of this frock is:

1), by top for grinding machine to withstand threaded mandrel two ends top, grinding A face, B face, when A face and grinding part, and the plane of threaded mandrel and grinding feature contacts, when B face and grinding part, the cylindrical that threaded mandrel coordinates with grinding part;

2), by grinding part tape loaded threaded mandrel, tighten up with clamp-screw, before tightening up, first empty handle, tightens up after cylindrical grinding until centering on lathe;

3), load onto backing plate, and tighten with clamp nut.

Wherein, grinding part is fixed on threaded mandrel by clamp-screw; The other end is by backing plate and clamp nut compacting grinding part.

Wherein, be matched in clearance in diametric(al) between threaded mandrel and grinding part, when grinding part, grinding machine is top, and to withstand threaded mandrel two ends top, with amesdial centering grinding part outer, fixed by clamp-screw, finally by clamp nut by backing plate compacting on grinding part.

Wherein, surface figure accuracy between threaded mandrel, grinding part, backing plate, clamp nut contact surface is according to different grinding element precision indexs, and can correspondingly improve, surface figure accuracy is higher, the radial direction power that is installed produced is less, and the precision index of grinding part is easier close to machine tool precision.

The present invention's advantage is compared with prior art:

(1) the threaded mandrel 1, in the present invention, only needs to be ground to matched in clearance with during grinding part 3 match grinding, does not need strict taper fit, fundamentally stops radial direction and to be installed power;

(2) mating surface between the threaded mandrel 1, in the present invention, clamp-screw 2, grinding part 3, backing plate 4, clamp nut 5 is the contact in face and face entirely, fundamentally stops radial direction and to be installed power;

(3), in the present invention, in order to tackle the impact brought at the radial grinding force of grinding stage generation, the generation of corresponding radial-thrust force respectively contacts a friction for normal pressure generation by grinding fixture, instead of pure radial direction is installed power, the size of frictional force regulates by the screw thread of clamp nut 5 with threaded mandrel 1.

Accompanying drawing explanation

Fig. 1 is the main TV structure schematic diagram of cylindricalo grinding frock main body of thin wall cylinder part of the present invention, wherein, 1 be threaded mandrel, 2 is clamp-screw, 3 is grinding part, 4 is backing plate, 5 for clamp nut;

Fig. 2 is the left TV structure schematic diagram of cylindricalo grinding frock main body of thin wall cylinder part of the present invention.

Detailed description of the invention

The present invention is further illustrated below in conjunction with accompanying drawing and specific embodiment.

As shown in Figure 1 to Figure 2, the cylindricalo grinding frock of a kind of thin wall cylinder part of the present invention, comprising: threaded mandrel 1, clamp-screw 2, grinding part 3, backing plate 4, clamp nut 5, and its specific implementation method is as follows:

1), first by top for grinding machine to withstand threaded mandrel 1 two ends top, grinding A face, B face;

2), by grinding part 3 tape loaded threaded mandrel 1, tighten up with clamp-screw 2, before tightening up, first empty handle, tightens up after cylindrical grinding until centering on lathe;

3), load onto backing plate 4, and tighten with clamp nut 5.

Frock practical application: a collection of outside diameter is 120mm, diameter of bore is 108mm, and length is the part of 150mm, size 150 end flat degree, the depth of parallelism require 0.001mm, cylindrical 120 requires to join work with brearing bore, and interference requires 0.003mm to 0.006mm, cylindricity 0.003mm.After utilizing this frock, size and the accuracy of form and position all reach drawing requirement.

Non-elaborated part of the present invention belongs to techniques well known.

The above; be only part detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art are in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.

Claims (4)

1. a cylindricalo grinding frock for thin wall cylinder part, is characterized in that: this frock comprises threaded mandrel (1), clamp-screw (2), grinding part (3), backing plate (4) and clamp nut (5); The using method of this frock is:
1), by top for top for grinding machine threaded mandrel (1) two ends of withstanding, grinding A face, B face, wherein, when A face and grinding part, the plane of threaded mandrel and grinding feature contacts, when B face and grinding part, the cylindrical that threaded mandrel coordinates with grinding part;
2), by grinding part (3) tape loaded threaded mandrel (1), tighten up with clamp-screw (2), before tightening up, first empty handle, tightens up after cylindrical grinding until centering on lathe;
3), load onto backing plate (4), and tighten with clamp nut (5).
2. the cylindricalo grinding frock of a kind of thin wall cylinder part according to claim 1, is characterized in that: grinding part (3) is fixed on threaded mandrel (1) by clamp-screw; The other end is by backing plate (4) and clamp nut (5) compacting grinding part.
3. the cylindricalo grinding frock of a kind of thin wall cylinder part according to claim 1, it is characterized in that: between threaded mandrel (1) and grinding part, (3) are matched in clearance in diametric(al), when grinding part, top threaded mandrel (1) two ends of withstanding of grinding machine are top, with amesdial centering grinding part (3) cylindrical, by clamp-screw (2) fix, finally by clamp nut (5) by backing plate (4) compacting on grinding part.
4. the cylindricalo grinding frock of a kind of thin wall cylinder part according to claim 1, it is characterized in that: the surface figure accuracy between threaded mandrel (1), grinding part (3), backing plate (4), clamp nut (5) contact surface is according to different grinding element precision indexs, can correspondingly improve, surface figure accuracy is higher, the radial direction power that is installed produced is less, and the precision index of grinding part is easier close to machine tool precision.
CN201510638497.4A 2015-09-30 2015-09-30 External grinding tool for thin-walled cylindrical part CN105234754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510638497.4A CN105234754A (en) 2015-09-30 2015-09-30 External grinding tool for thin-walled cylindrical part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510638497.4A CN105234754A (en) 2015-09-30 2015-09-30 External grinding tool for thin-walled cylindrical part

Publications (1)

Publication Number Publication Date
CN105234754A true CN105234754A (en) 2016-01-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510638497.4A CN105234754A (en) 2015-09-30 2015-09-30 External grinding tool for thin-walled cylindrical part

Country Status (1)

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CN (1) CN105234754A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499672A (en) * 2016-01-19 2016-04-20 宝鸡石油机械有限责任公司 Method for milling barrel material into arc-shaped plate
CN105563244A (en) * 2016-02-04 2016-05-11 太原重工股份有限公司 Finish machining method and device for two half-tile thin-wall linings
CN106737166A (en) * 2016-12-07 2017-05-31 哈尔滨电气动力装备有限公司 Ultra-thin cylinder base part grinding external diameter special purpose device long
CN107052918A (en) * 2017-04-26 2017-08-18 绵竹市凯瑞机械加工有限公司 Cover fixed mechanism during class mechanical part cylindricalo grinding
CN111185786A (en) * 2020-01-22 2020-05-22 宝鸡石油机械有限责任公司 Machining tool for turning outer circle of thin-wall cylinder and using method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86209906U (en) * 1986-12-10 1987-08-26 郑州磨料磨具磨削研究所 Centreless grinding device
US6012976A (en) * 1997-04-17 2000-01-11 Seh America, Inc. Multi-piece lathe chuck for silicon ingots
JP2004314240A (en) * 2003-04-16 2004-11-11 Nitto Seiko Co Ltd Part end face grinding device
CN102009347A (en) * 2010-09-25 2011-04-13 中国科学院光电技术研究所 Numerical control processing device and method for double-end pin positioning of optical zoom cam
CN104416426A (en) * 2013-09-09 2015-03-18 张丹 Method for clamping round wood material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86209906U (en) * 1986-12-10 1987-08-26 郑州磨料磨具磨削研究所 Centreless grinding device
US6012976A (en) * 1997-04-17 2000-01-11 Seh America, Inc. Multi-piece lathe chuck for silicon ingots
JP2004314240A (en) * 2003-04-16 2004-11-11 Nitto Seiko Co Ltd Part end face grinding device
CN102009347A (en) * 2010-09-25 2011-04-13 中国科学院光电技术研究所 Numerical control processing device and method for double-end pin positioning of optical zoom cam
CN104416426A (en) * 2013-09-09 2015-03-18 张丹 Method for clamping round wood material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
罗成: "航天镁合金薄壁件的精密车削加工", 《机械设计与制造》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499672A (en) * 2016-01-19 2016-04-20 宝鸡石油机械有限责任公司 Method for milling barrel material into arc-shaped plate
CN105563244A (en) * 2016-02-04 2016-05-11 太原重工股份有限公司 Finish machining method and device for two half-tile thin-wall linings
CN105563244B (en) * 2016-02-04 2018-05-04 太原重工股份有限公司 The method for fine finishing and its device of two half-watt thin-wall bushes
CN106737166A (en) * 2016-12-07 2017-05-31 哈尔滨电气动力装备有限公司 Ultra-thin cylinder base part grinding external diameter special purpose device long
CN107052918A (en) * 2017-04-26 2017-08-18 绵竹市凯瑞机械加工有限公司 Cover fixed mechanism during class mechanical part cylindricalo grinding
CN111185786A (en) * 2020-01-22 2020-05-22 宝鸡石油机械有限责任公司 Machining tool for turning outer circle of thin-wall cylinder and using method thereof

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