CN203779182U - Centering clamp for thin-walled sleeve - Google Patents

Centering clamp for thin-walled sleeve Download PDF

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Publication number
CN203779182U
CN203779182U CN201420079723.0U CN201420079723U CN203779182U CN 203779182 U CN203779182 U CN 203779182U CN 201420079723 U CN201420079723 U CN 201420079723U CN 203779182 U CN203779182 U CN 203779182U
Authority
CN
China
Prior art keywords
expansion
thin
axle
sleeve
walled
Prior art date
Application number
CN201420079723.0U
Other languages
Chinese (zh)
Inventor
张鸿来
Original Assignee
张鸿来
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 张鸿来 filed Critical 张鸿来
Priority to CN201420079723.0U priority Critical patent/CN203779182U/en
Application granted granted Critical
Publication of CN203779182U publication Critical patent/CN203779182U/en

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Abstract

The utility model relates to a centering clamp for a thin-walled sleeve. The centering clamp for the thin-walled sleeve comprises a mandrel, an expansion sleeve, a regulation nut and a check ring, wherein the mandrel is shaped like a conical body; the inner wall of the expansion sleeve is a conical surface matched with the outer wall of the mandrel; the outer wall of the expansion sleeve is a post-like surface; the expansion sleeve is matched and connected with the conical body of the mandrel by the conical surface at the inner wall; the front end of the expansion sleeve is connected with a step end surface at the rear end of the mandrel by a spring; the rear end of the expansion sleeve is in contact connection with the regulation nut screwed on the threaded end of the mandrel by the check ring; a flexible positioning sleeve sleeves the expansion sleeve. The centering clamp for the thin-walled sleeve is simple in structure, and a workpiece is convenient to assemble and disassemble and can realize self-centering; particularly, after the use of the flexible positioning sleeve, in the clamping and machining process of the thin-walled part, the deformation of the thin-walled part is small, the machining precision is improved, the coaxiality and perpendicularity of the machined thin-walled part are ensured, and the part is convenient to assemble and disassemble by releasing the expansion sleeve through using the spring.

Description

Centralizer for thin walled cylinder body

Technical field

The utility model relates to a kind of work piece holder, particularly a kind of centralizer for thin walled cylinder body.

Background technology

In machining, some workpiece are positioned and are clamped by its endoporus, and existing fixture or complicated structure, be exactly unload cumbersome, and order scarcely can realize self-centering, the requirement that often can not satisfy condition, causes machining accuracy poor.Therefore, Chinese invention patent application number: 201110286659.4, a kind of self-centering fixture is disclosed, axle is the cone of hollow, and the external diameter of nearly ring flange end is greater than the external diameter of ring flange end far away, the ring flange end far away of axle has one section of external screw thread, this section of external screw thread place is equipped with adjusting nut, axle is circumferentially arranged with a slidably baffle ring outward, axle is provided with a pair of chute along distributing in axle, the axle center of axle is hung with a pull bar, one end of pull bar and baffle ring fix by a pin, pin is through in a pair of chute, and can slide along it, the other end of pull bar is fixed with a catch, the conicoid that the inwall of expansion set matches for the outer wall with axle, outer wall is column face, the nearly ring flange end of expansion set has the locating ring for axial location workpiece of circumferential protrusion, on expansion set, axially offer a plurality of expansion joints of being convenient to expansion and shrinking, expansion set is set between baffle ring and adjusting nut, when adjusting nut is during to direction turn near described ring flange, expansion set moves and external diameter is expanded to the direction of the external diameter increase of axle, thereby offset with the inwall of workpiece, when adjusting nut is during to direction turn away from ring flange, adjusting nut drives described catch by pull bar and baffle ring, and expansion set is moved to the direction of the reduced diameter of described axle, the reduced diameter of expansion set and being separated with the inwall of workpiece.But this fixture, in the process of clamping thin-walled parts, easily causes thin-walled parts distortion.Particularly the distortion of thin-walled elongated workpieces is larger.

Summary of the invention

The utility model is the technical problem that clamps machining deformation that will solve thin-walled parts, and a kind of centralizer for thin walled cylinder body is provided.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of centralizer for thin walled cylinder body, comprise axle, expansion set, adjusting nut, baffle ring, the conicoid that the inwall that axle is cone, expansion set matches for the outer wall with axle, outer wall is column face, expansion set is matchedly connected by inwall conicoid and axle cone, expansion set front end is connected with mandrels backend step end face by spring, the rear end of expansion set is connected with the adjusting nut contact being spun on the axle end of thread by baffle ring, and expansion set is socketed with flexible positioning sleeve outward.

On expansion set, axially offer a plurality of expansion joints of being convenient to expansion and shrinking.Flexible positioning sleeve is comprised of the arcuate member of two semi-ring surfaces, in this two arcuate members periphery, has respectively a plurality of cavity type flexible slots.

The beneficial effects of the utility model are: simple in structure, workpiece easy to loading and unloading, and can realize self-centering, particularly used after flexible positioning sleeve, in the process of clamping thin-walled parts, thin-walled parts deflection is little, improved machining accuracy, can guarantee axiality and the perpendicularity of the thin-walled parts after processing, by loosening expansion set with spring, be convenient to load and unload processing parts.

Accompanying drawing explanation

Fig. 1 is structure cutaway view of the present utility model;

Fig. 2 is flexible locating sleeve structure cutaway view;

Fig. 3 is expansion set structural upright schematic diagram;

Fig. 4 is the structure cutaway view of the utility model clamping thin-walled parts.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.

As Fig. 1, shown in 4, a kind of centralizer for thin walled cylinder body, comprises axle 1, expansion set 2, flexible positioning sleeve 3, spring 4, baffle ring 5, adjusting nut 6.

The conicoid that the inwall that axle 1 is cone, expansion set 2 matches for the outer wall with axle, outer wall is column face, expansion set 2 is matchedly connected by inwall conicoid and axle 1 cone, expansion set 2 front ends are connected with axle 1 rear end step end face by spring 4, the rear end of expansion set 2 is connected with adjusting nut 6 contacts that are spun on the axle end of thread by baffle ring 5, is socketed with flexible positioning sleeve 3 outside expansion set 2.

As shown in Figure 2, flexible positioning sleeve 3 is comprised of the arcuate member of two semi-ring surfaces, in this two arcuate members periphery, has respectively a plurality of cavity type flexible slots.

As shown in Figure 3, on expansion set 2, axially offer a plurality of expansion joints of being convenient to expansion and shrinking.

As shown in Figure 4, when adjusting nut 6 is when near the direction precession of mandrels backend step end face, the direction that expansion set 2 increases to the external diameter of axle moves and external diameter is expanded, and flexible positioning sleeve 3 and the inwall flexible contact of thin-walled parts 7 are pushed against.

When adjusting nut 6 screws out to direction away from mandrels backend step end face, expansion set 2, under spring 4 effects, moves to the direction of the reduced diameter of axle 1, and flexible positioning sleeve 3 and the inwall of thin-walled parts 7 are separated.

Claims (3)

1. the centralizer for thin walled cylinder body, comprise axle (1), expansion set (2), adjusting nut (6), baffle ring (5), it is characterized in that: described axle (1) is cone, the conicoid that the inwall of expansion set (2) matches for the outer wall with axle (1), outer wall is column face, expansion set (2) is matchedly connected by inwall conicoid and axle (1) cone, expansion set (2) front end is connected with mandrels backend step end face by spring (4), the rear end of expansion set (2) is connected with adjusting nut (6) contact being spun on the axle end of thread by baffle ring (5), the outer flexible positioning sleeve (3) that is socketed with of expansion set (2).
2. according to the centralizer for thin walled cylinder body claim (1) Suo Shu, it is characterized in that: on described expansion set (2), axially offer a plurality of expansion joints of being convenient to expansion and shrinking.
3. the centralizer for thin walled cylinder body according to claim 1, is characterized in that: described flexible positioning sleeve (3) is comprised of the arcuate member of two semi-ring surfaces, in this two arcuate members periphery, has respectively a plurality of cavity type flexible slots.
CN201420079723.0U 2014-02-23 2014-02-23 Centering clamp for thin-walled sleeve CN203779182U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420079723.0U CN203779182U (en) 2014-02-23 2014-02-23 Centering clamp for thin-walled sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420079723.0U CN203779182U (en) 2014-02-23 2014-02-23 Centering clamp for thin-walled sleeve

Publications (1)

Publication Number Publication Date
CN203779182U true CN203779182U (en) 2014-08-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420079723.0U CN203779182U (en) 2014-02-23 2014-02-23 Centering clamp for thin-walled sleeve

Country Status (1)

Country Link
CN (1) CN203779182U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626250A (en) * 2014-12-30 2015-05-20 山东太阳纸业股份有限公司 Paper element chuck
CN104647101A (en) * 2015-02-12 2015-05-27 南京工业职业技术学院 Screw sleeve part inner hole processing lathe clamp
CN104889668A (en) * 2015-06-18 2015-09-09 合肥合锻机床股份有限公司 Reducing elastic mandrel clamping device
CN105710412A (en) * 2016-04-11 2016-06-29 哈尔滨建成集团有限公司 Clamp special for hole drilling of thin-wall conic body window
CN106466813A (en) * 2015-08-13 2017-03-01 内蒙古航天红峡化工有限公司 A kind of annular heat insulation layer polishing support fixture
CN106541290A (en) * 2017-01-23 2017-03-29 苏州经贸职业技术学院 A kind of jig of the circumferential registration for thin-wall part processing
CN106903635A (en) * 2017-05-04 2017-06-30 安徽航大智能科技有限公司 A kind of high accuracy self-centering clamping mechanism for being applied to the clamping of thin-walled external member
CN108568767A (en) * 2018-06-29 2018-09-25 苏州超磁半导体科技有限公司 A kind of tooling adjusting thin wall cylinder concentricity
CN110640492A (en) * 2019-09-05 2020-01-03 中国航发北京航科发动机控制系统科技有限公司 Sleeve part clamping device and method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104626250A (en) * 2014-12-30 2015-05-20 山东太阳纸业股份有限公司 Paper element chuck
CN104626250B (en) * 2014-12-30 2016-03-02 山东太阳纸业股份有限公司 A kind of refill chuck
CN104647101A (en) * 2015-02-12 2015-05-27 南京工业职业技术学院 Screw sleeve part inner hole processing lathe clamp
CN104647101B (en) * 2015-02-12 2017-04-26 南京工业职业技术学院 Screw sleeve part inner hole processing lathe clamp
CN104889668A (en) * 2015-06-18 2015-09-09 合肥合锻机床股份有限公司 Reducing elastic mandrel clamping device
CN106466813A (en) * 2015-08-13 2017-03-01 内蒙古航天红峡化工有限公司 A kind of annular heat insulation layer polishing support fixture
CN105710412A (en) * 2016-04-11 2016-06-29 哈尔滨建成集团有限公司 Clamp special for hole drilling of thin-wall conic body window
CN106541290A (en) * 2017-01-23 2017-03-29 苏州经贸职业技术学院 A kind of jig of the circumferential registration for thin-wall part processing
CN106903635A (en) * 2017-05-04 2017-06-30 安徽航大智能科技有限公司 A kind of high accuracy self-centering clamping mechanism for being applied to the clamping of thin-walled external member
CN106903635B (en) * 2017-05-04 2018-07-24 安徽航大智能科技有限公司 A kind of high-precision self-centering clamping mechanism clamped applied to thin-walled external member
CN108568767A (en) * 2018-06-29 2018-09-25 苏州超磁半导体科技有限公司 A kind of tooling adjusting thin wall cylinder concentricity
CN110640492A (en) * 2019-09-05 2020-01-03 中国航发北京航科发动机控制系统科技有限公司 Sleeve part clamping device and method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140820

Termination date: 20150223