CN203778797U - Flexible self-centering clamp for thin-walled sleeve - Google Patents

Flexible self-centering clamp for thin-walled sleeve Download PDF

Info

Publication number
CN203778797U
CN203778797U CN201420079241.5U CN201420079241U CN203778797U CN 203778797 U CN203778797 U CN 203778797U CN 201420079241 U CN201420079241 U CN 201420079241U CN 203778797 U CN203778797 U CN 203778797U
Authority
CN
China
Prior art keywords
thin
axle
flexible
sides
screw rod
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
CN201420079241.5U
Other languages
Chinese (zh)
Inventor
张鸿来
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201420079241.5U priority Critical patent/CN203778797U/en
Application granted granted Critical
Publication of CN203778797U publication Critical patent/CN203778797U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Jigs For Machine Tools (AREA)

Abstract

The utility model relates to a flexible self-centering clamp for a thin-walled sleeve. Through slots are respectively formed in two ends of a mandrel; a press plate is movably matched and connected in each through slot; a positioning sleeve is matched and connected onto the outer cylinder of the mandrel; flexible positioning tension rings are respectively arranged between two sides of the positioning sleeve and the press plates; the two press plates are connected with a threaded shaft at two sides of a screw rod in a central hole in the mandrel; one press plate is in left threaded connection with the threaded shaft of the screw rod; the other press plate is in right treaded connection with the threaded shaft of the screw rod; the inside surface of the threaded shaft at two sides of the screw rod are respectively in contact connection with the inner end surfaces at two sides in the central hole of the mandrel; the front end of the mandrel is fixedly connected with a flange. The flexible self-centering clamp for the thin-walled sleeve is simple in structure and can realize self centering; particularly, after the use of the flexible positioning tension rings, in the clamping and machining process of the thin-walled long part, the thin-walled long part is clamped by using the flexible positioning tension rings, the deformation of the machined thin-walled long part is small, the positioning precision is high, the coaxiality and perpendicularity of the machined thin-walled long part are ensured, and the thin-walled long part is convenient to assemble and disassemble.

Description

Flexible self-centering fixture for thin walled cylinder body
Technical field
The utility model relates to a kind of thin-walled parts centralizer, particularly a kind of self-centering fixture of thin-walled parts.
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 elongated workpieces, and a kind of flexible self-centering fixture 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 flexible self-centering fixture for thin walled cylinder body, comprise axle, flange, pressing plate, screw rod, positioning sleeve, axle two ends have groove, the activity pressing plate that is connected in groove, positioning sleeve is connected in axle outside cylinder, flexible positioning expander collar is housed respectively between positioning sleeve both sides and pressing plate, two block pressur plates are connected with the thread spindle of screw rod both sides in axle centre bore respectively, wherein, one block pressur plate is connected with screw flight axle left-hand thread, another block pressur plate is connected with screw flight axle right-hand thread, the thread spindle medial surface of screw rod both sides is connected with the both sides inner face contact in axle centre bore respectively, the front end of axle is fixedly connected with flange.
Positioning sleeve external cylindrical surface is connected with thin-walled elongated workpieces endoporus matched in clearance.While clamping thin-walled elongated workpieces, contact is connected with pressing plate with positioning sleeve respectively in flexible positioning expander collar both sides.Between positioning sleeve and axle, interference fit is connected.Flexible positioning expander collar is rubber positioning expander collar.
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 expander collar, in the process of clamping thin-walled elongated workpieces, by flexible positioning expander collar, clamped thin-walled elongated workpieces, make the thin-walled elongated workpieces deflection after processing little, positioning precision is high, can guarantee axiality and the perpendicularity of the thin-walled elongated workpieces after processing, and is convenient to the handling of thin-walled elongated workpieces.
Accompanying drawing explanation
Fig. 1 is structure cutaway view of the present utility model;
Fig. 2 is along the cutaway view of A-A in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As Fig. 1, shown in 2, a kind of flexible self-centering fixture for thin walled cylinder body, comprises axle 1, flange 2, positioning sleeve 3, flexible positioning expander collar 4, pressing plate 5, screw rod 6.
Axle 1 two ends have groove, the activity pressing plate 5 that is connected in groove, positioning sleeve 3 is connected in axle 1 outside cylinder, flexible positioning expander collar 4 is housed respectively between positioning sleeve 3 both sides and pressing plate 5, two block pressur plates 5 are connected with the thread spindle of screw rod 6 both sides in axle 1 centre bore respectively, wherein, one block pressur plate 5 is connected with the thread spindle left-hand thread of screw rod 6, another block pressur plate 5 is connected with the thread spindle right-hand thread of screw rod 6, the thread spindle medial surface of screw rod 6 both sides is connected with the both sides inner face contact in axle 1 centre bore respectively, the front end of axle 1 is fixedly connected with flange 2.
Positioning sleeve 3 external cylindrical surfaces are connected with thin-walled elongated workpieces 7 endoporus matched in clearance.While clamping thin-walled elongated workpieces 7,5 contacts are connected with pressing plate with positioning sleeve 3 respectively in flexible positioning expander collar 4 both sides.Between positioning sleeve 3 and axle 1, interference fit is connected.Flexible positioning expander collar 4 is rubber positioning expander collar.
When rotating screw bolt 6, two block pressur plates, under left and right thread spindle effect, inwardly push flexible positioning expander collar 4, make the outside expansion of flexible positioning expander collar 4 contact and push against with the inwall of thin-walled elongated workpieces 7.
When rotating backward screw rod 6, two block pressur plates are under left and right thread spindle effect, and outwards mobile and flexible positioning expander collar 4 is unclamped, and flexible positioning expander collar 4 is inwardly shunk with the inwall of thin-walled elongated workpieces 7 and is separated under elastic reaction.

Claims (5)

1. the flexible self-centering fixture for thin walled cylinder body, comprise axle (1), flange (2), positioning sleeve (3), it is characterized in that: described axle (1) two ends have groove, the activity pressing plate (5) that is connected in groove, positioning sleeve (3) is connected in axle (1) outside cylinder, between positioning sleeve (3) both sides and pressing plate (5), flexible positioning expander collar (4) is housed respectively, two block pressur plates (5) are connected with the thread spindle of screw rod (6) both sides in axle (1) centre bore respectively, wherein, one block pressur plate (5) is connected with the thread spindle left-hand thread of screw rod (6), another block pressur plate (5) is connected with the thread spindle right-hand thread of screw rod (6), the thread spindle medial surface of screw rod (6) both sides is connected with the both sides inner face contact in axle (1) centre bore respectively, the front end of axle (1) is fixedly connected with flange (2).
2. the flexible self-centering fixture for thin walled cylinder body according to claim 1, is characterized in that: described positioning sleeve (3) external cylindrical surface is connected with thin-walled elongated workpieces (7) endoporus matched in clearance.
3. the flexible self-centering fixture for thin walled cylinder body according to claim 1, it is characterized in that: while clamping thin-walled elongated workpieces (7), contact is connected with pressing plate (5) with positioning sleeve (3) respectively in described flexible positioning expander collar (4) both sides.
4. the flexible self-centering fixture for thin walled cylinder body according to claim 1, is characterized in that: between described positioning sleeve (3) and axle (1), interference fit is connected.
5. the flexible self-centering fixture for thin walled cylinder body according to claim 1, is characterized in that: described flexible positioning expander collar (4) is rubber positioning expander collar.
CN201420079241.5U 2014-02-23 2014-02-23 Flexible self-centering clamp for thin-walled sleeve Expired - Fee Related CN203778797U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420079241.5U CN203778797U (en) 2014-02-23 2014-02-23 Flexible self-centering clamp for thin-walled sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420079241.5U CN203778797U (en) 2014-02-23 2014-02-23 Flexible self-centering clamp for thin-walled sleeve

Publications (1)

Publication Number Publication Date
CN203778797U true CN203778797U (en) 2014-08-20

Family

ID=51315025

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420079241.5U Expired - Fee Related CN203778797U (en) 2014-02-23 2014-02-23 Flexible self-centering clamp for thin-walled sleeve

Country Status (1)

Country Link
CN (1) CN203778797U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104385187A (en) * 2014-11-16 2015-03-04 重庆瑞普电缆有限公司 Pneumatic rubber expansion core shaft
CN104607682A (en) * 2014-12-17 2015-05-13 重庆第二机床厂有限责任公司 Positioning method for high-precision machining of thin-walled workpiece
CN108857910A (en) * 2018-06-19 2018-11-23 江西昌河航空工业有限公司 A kind of odd-shaped cross section thin-walled chamber class part shot peening strengthening flexible fixture
CN112453865A (en) * 2020-11-17 2021-03-09 郑州云启工业设备技术有限公司 Butterfly plate combination device of butterfly valve assembling machine
CN113059073A (en) * 2021-03-29 2021-07-02 浙江大学 Inner centering mechanism for bending and forming flange large-diameter pipe fitting

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104385187A (en) * 2014-11-16 2015-03-04 重庆瑞普电缆有限公司 Pneumatic rubber expansion core shaft
CN104385187B (en) * 2014-11-16 2018-10-19 重庆瑞普电缆有限公司 Pneumatic rubber expanding arbor
CN104607682A (en) * 2014-12-17 2015-05-13 重庆第二机床厂有限责任公司 Positioning method for high-precision machining of thin-walled workpiece
CN108857910A (en) * 2018-06-19 2018-11-23 江西昌河航空工业有限公司 A kind of odd-shaped cross section thin-walled chamber class part shot peening strengthening flexible fixture
CN112453865A (en) * 2020-11-17 2021-03-09 郑州云启工业设备技术有限公司 Butterfly plate combination device of butterfly valve assembling machine
CN112453865B (en) * 2020-11-17 2022-01-14 深圳市汇鑫通源科技有限公司 Butterfly plate combination device of butterfly valve assembling machine
CN113059073A (en) * 2021-03-29 2021-07-02 浙江大学 Inner centering mechanism for bending and forming flange large-diameter pipe fitting
CN113059073B (en) * 2021-03-29 2022-03-11 浙江大学 Inner centering mechanism for bending and forming flange large-diameter pipe fitting

Similar Documents

Publication Publication Date Title
CN203779182U (en) Centering clamp for thin-walled sleeve
CN103769900A (en) Flexible self-centering fixture
CN203778797U (en) Flexible self-centering clamp for thin-walled sleeve
CN202804227U (en) Elastic mandrel positioning fixture of turning thin-walled part
CN103753323B (en) Automatic self-centering fixture
CN203778799U (en) Manual self-centering clamp for thin-walled sleeve
CN104858463A (en) Manual self-centering clamp for thin-walled part
CN102357826B (en) Self-centering fixture
CN203779144U (en) Cam type self-centering clamp for thin-walled sleeve
CN104858693A (en) Cam type self-centering clamp
CN104858694A (en) Self-centering clamp for thin-walled part
CN103737048A (en) Clamp special for thin wall cylinder excircle turning
CN104889668A (en) Reducing elastic mandrel clamping device
CN203779181U (en) Automatic self-centering clamp for thin-walled sleeve
CN104712626A (en) Accelerometer pendulum piece set bonding device of expandable mandrel structure
CN105618803A (en) Expanding clamp for turning thin-walled part
CN105563180A (en) Self-centering clamp used for taper hole product
CN104493230A (en) Thin-wall pipe fitting excircle machining clamp
CN103894641A (en) Outer-ejection-type inner expansion clamping sleeve
CN203900533U (en) Machining tool for ultra thin-walled cylinder type workpieces
CN107246856B (en) Positioning device and positioning method for expandable support inner cavity type cylindrical part
CN203778798U (en) Self centering clamp for inner wall of thin-walled long sleeve
CN104842268A (en) Annular part grinding fixture
CN103433787A (en) Dual taper automatic centring device
CN215967503U (en) Inner hole positioning and holding device

Legal Events

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

Granted publication date: 20140820

Termination date: 20150223

EXPY Termination of patent right or utility model