CN201841289U - Inner hole expanding device for thin-walled parts - Google Patents

Inner hole expanding device for thin-walled parts Download PDF

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Publication number
CN201841289U
CN201841289U CN2010206042170U CN201020604217U CN201841289U CN 201841289 U CN201841289 U CN 201841289U CN 2010206042170 U CN2010206042170 U CN 2010206042170U CN 201020604217 U CN201020604217 U CN 201020604217U CN 201841289 U CN201841289 U CN 201841289U
Authority
CN
China
Prior art keywords
thin
swelling
walled parts
mandrel
expand sleeve
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.)
Expired - Fee Related
Application number
CN2010206042170U
Other languages
Chinese (zh)
Inventor
李文超
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.)
Bright World Of Cnc Machine Tools (jiangsu) Co Ltd
Original Assignee
Bright World Of Cnc Machine Tools (jiangsu) 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 Bright World Of Cnc Machine Tools (jiangsu) Co Ltd filed Critical Bright World Of Cnc Machine Tools (jiangsu) Co Ltd
Priority to CN2010206042170U priority Critical patent/CN201841289U/en
Application granted granted Critical
Publication of CN201841289U publication Critical patent/CN201841289U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an inner hole expanding device for thin-walled parts. The inner hole expanding device comprises mandrels, an expand sleeve, lock nuts and a plurality of elastic rings; the expand sleeve is nested in the middle of the mandrels; the inner hole of the expand sleeve is matched with the outer conical surface in the middle of the mandrels; the inner hole of a clamped thin-walled part is sleeved on the excircle of the expand sleeve; the expand sleeve adopts a split structure which is equally divided into three parts along the radial direction; the elastic rings are arranged on the outer peripheral face of the expand sleeve along the axial direction; and the lock nuts are screwed on the mandrels respectively and arranged on two sides of the expand sleeve. The inner hole expanding device for thin-walled parts is simple in structure, accurate in positioning and reliable in clamping; the expand sleeve is composed of three radially-divided parts which are connected into an integral structure under elasticity of an O seal ring, so that workpieces are dismounted conveniently, and the requirements of workpieces for dimensional precision and form and position tolerance can be ensured effectively.

Description

Thin-walled parts endoporus swelling device
Technical field
The utility model relates to a kind of metal cutting clamp for machining, especially a kind ofly locatees the anchor clamps of processing thin-walled part cylindrical with endoporus, belongs to the Machining Technology field.
Background technology
Run into processing as thin-walled parts such as the collars through regular meeting in the machining, this class part needs high dimension precision and Geometrical Tolerance Principle.At present, usually adopt thin-walled parts endoporus location grinding thin-walled parts cylindrical, because mandrel and workpiece endoporus adopt matched in clearance closely, it is big to cause adding thin-walled parts end face circular runout in man-hour, can't guarantee the thin-walled parts cylindrical that is ground and the axiality tolerance of endoporus.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, location and clamps accurately and reliably hole positioning device in the thin-walled parts.
The utility model is achieved by the following technical programs:
A kind of thin-walled parts endoporus swelling device, comprise mandrel, swelling cover, locking nut, elastic ring, described swelling cover is sleeved on described mandrel middle part, swelling cover endoporus cooperates with mandrel middle part outer conical surface, the thin-walled parts inner hole sleeve of clamping is on swelling cover cylindrical, described swelling cover is for radially being divided into the branch body structure of trisection, and swelling cover outer peripheral face upper edge is axially arranged with several elastic rings.Described locking nut screws respectively on described mandrel, is arranged on described swelling cover both sides.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid thin-walled parts endoporus swelling device, wherein said swelling cover endoporus cooperates the tapering C of the conical surface to be 1:8~12 with mandrel middle part cylindrical; Described elastic ring is an O-ring seals.
The utility model is simple in structure, accurate positioning, and reliable clamping has effectively guaranteed the dimensional accuracy and the Geometrical Tolerance Principle of workpiece to be machined.Thin-walled parts is sleeved on the utility model, tightens the locking nut that a side is overlapped in swelling, the swelling cover endoporus conical surface moves forward along the mandrel outer conical surface, and swelling cover external diameter increases, thus clamping work pieces.The swelling cover adopts and radially divides body structure, and repair demolition is convenient.The utility model utilizes the elastic reaction of O-ring seals dexterously, and three splits of radially split are connected into overall structure, and the dismounting workpiece is convenient.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, the utility model comprises mandrel 1, swelling cover 2, locking nut 3, elastic ring 5, and mandrel 1 is a Welding Structure thick between the detail of two, and mandrel 1 middle part cylindrical is a taper seat, and its radially inner side is provided with several through holes 11, alleviates its weight.It is conical bore that 2 endoporus are overlapped in swelling, and the tapering C of taper seat and conical bore is 1:8~12, and tapering C adopts 1:10 in the present embodiment.Swelling cover 2 is sleeved on mandrel 1 middle part, and swelling is overlapped 2 endoporus and cooperated with mandrel 1 middle part outer conical surface, and the thin-walled parts inner hole sleeve of clamping overlaps on 2 cylindricals in swelling.Swelling cover 2 is convenient to dismounting for radially being divided into the branch body structure of trisection.The swelling of present embodiment is overlapped 2 outer peripheral face upper edges and is axially arranged with 2 elastic rings 5, and elastic ring 5 is an O-ring seals.Utilize the resilient force of O-ring seals, the split 21 of the trisection of swelling cover 2 is integrated, be convenient to take apart swelling cover 2 and take off thin-walled parts 4.Locking nut 3 screws respectively on mandrel 1, is arranged on the both sides of swelling cover 2, makes thin-walled parts 4 location.
During clamping thin-walled parts 4, earlier its inner hole sleeve is overlapped on 2 cylindricals in swelling, tighten the locking nut 3 that 2 one sides are overlapped in swelling gently, locking nut 3 promotes swelling cover 2 and moves forward, swelling is overlapped 2 external diameters and is increased, cooperate under the effect of the conical surface at swelling cover 2 and mandrel 1, clamped thin-walled parts 4, present embodiment is the less thin-walled parts 4 of two width of clamping altogether.To install the centre bore location of the utility model of thin-walled parts 4 then, start lathe, finish the Cylindrical Grinding Processes of two thin-walled parts 4 with mandrel 1 two ends.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims (3)

1. thin-walled parts endoporus swelling device, it is characterized in that: comprise mandrel, swelling cover, locking nut, elastic ring, described swelling cover is sleeved on described mandrel middle part, swelling cover endoporus cooperates with mandrel middle part outer conical surface, the thin-walled parts inner hole sleeve of clamping is on swelling cover cylindrical, described swelling cover is for radially being divided into the branch body structure of trisection, swelling cover outer peripheral face upper edge is axially arranged with several elastic rings, described locking nut screws respectively on described mandrel, is arranged on described swelling cover both sides.
2. thin-walled parts endoporus swelling device as claimed in claim 1 is characterized in that: described swelling cover endoporus cooperates the tapering C of the conical surface to be 1:8~12 with mandrel middle part cylindrical.
3. thin-walled parts endoporus swelling device as claimed in claim 1 is characterized in that: described elastic ring is an O-ring seals.
CN2010206042170U 2010-11-12 2010-11-12 Inner hole expanding device for thin-walled parts Expired - Fee Related CN201841289U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206042170U CN201841289U (en) 2010-11-12 2010-11-12 Inner hole expanding device for thin-walled parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206042170U CN201841289U (en) 2010-11-12 2010-11-12 Inner hole expanding device for thin-walled parts

Publications (1)

Publication Number Publication Date
CN201841289U true CN201841289U (en) 2011-05-25

Family

ID=44036193

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206042170U Expired - Fee Related CN201841289U (en) 2010-11-12 2010-11-12 Inner hole expanding device for thin-walled parts

Country Status (1)

Country Link
CN (1) CN201841289U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104190977A (en) * 2014-07-29 2014-12-10 南通理工学院 Cylindrical workpiece outer circle machining clamp and using method thereof
CN105522182A (en) * 2016-02-25 2016-04-27 四川聚能核技术工程有限公司 Internal expansion centering clamp and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104190977A (en) * 2014-07-29 2014-12-10 南通理工学院 Cylindrical workpiece outer circle machining clamp and using method thereof
CN105522182A (en) * 2016-02-25 2016-04-27 四川聚能核技术工程有限公司 Internal expansion centering clamp and application thereof

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Legal Events

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

Granted publication date: 20110525

Termination date: 20131112

C17 Cessation of patent right