CN201862802U - Inner expansion type positioning clamp - Google Patents

Inner expansion type positioning clamp Download PDF

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Publication number
CN201862802U
CN201862802U CN2010206016710U CN201020601671U CN201862802U CN 201862802 U CN201862802 U CN 201862802U CN 2010206016710 U CN2010206016710 U CN 2010206016710U CN 201020601671 U CN201020601671 U CN 201020601671U CN 201862802 U CN201862802 U CN 201862802U
Authority
CN
China
Prior art keywords
axle
cone
expansion type
hole
type positioning
Prior art date
Application number
CN2010206016710U
Other languages
Chinese (zh)
Inventor
许正义
Original Assignee
强胜精密机械(苏州)有限公司
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 强胜精密机械(苏州)有限公司 filed Critical 强胜精密机械(苏州)有限公司
Priority to CN2010206016710U priority Critical patent/CN201862802U/en
Application granted granted Critical
Publication of CN201862802U publication Critical patent/CN201862802U/en

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Abstract

The utility model relates to an inner expansion type positioning clamp and aims at providing a positioning clamp which not only can ensure that a mandrel clamps workpieces under the condition of deformation as less as possible, but also can ensure that the workpieces are conveniently and quickly assembled and disassembled. The technical scheme for achieving the aim of the utility model is that the inner expansion type positioning clamp consists of the mandrel and a positioning surface arranged on the mandrel; one end of the mandrel is conical and is matched with a main shaft hole connected with a machine tool; an axial inner conical hole is arranged at the other end of the mandrel; a plurality of through grooves are equally arranged on the wall of the inner conical hole; and an inner cone consistent with the taper of the inner conical hole is arranged in the inner conical hole.

Description

The internal-expansion type positioning fixture

Technical field

The utility model relates to field of machining, particularly the anchor clamps of processing thin-walled part.

Background technology

When the thin-walled parts that the axiality of processing excircles and endoporus is had relatively high expectations, general technology is: the folder cylindrical, face work and endoporus are then with anti-three-jaw support endoporus, processing excircles and groove.But in the practical operation because the axiality of anti-three-jaw and machine tool chief axis axis can not strict guarantee, and because workpiece wall is thin, support endoporus after, yielding, cause the axiality of the cylindrical of workpiece and endoporus overproof.Therefore, need a kind of axle anchor clamps, the centering precision height, simple in structure, cost is low.

Summary of the invention

The purpose of this utility model is to provide a kind of internal-expansion type positioning fixture, and these anchor clamps both can make axle clamping work pieces under the as far as possible little situation of distortion, can make workpiece loading and unloading convenient, fast again.

Realize that the utility model purpose technical scheme is: a kind of internal-expansion type positioning fixture, form by axle and the locating surface that is arranged on the axle, it is conical that one end of axle is, the spindle hole of lathe adapts with connection, the described axle other end is provided with an axial internal taper hole, and the inner cone hole wall by etc. be arranged with some grooves, in described internal taper hole, be provided with the inner cone consistent with the internal taper hole tapering.

Described inner cone hole wall is opened groove by 6 five equilibriums or 4 five equilibriums, groove width 1.5～2.0mm.

The described axle other end is because of being provided with groove, and becomes elastic tip.For with the complete distending of internal taper hole, the length of described inner cone is greater than internal taper hole.

During use, earlier inner cone is screwed out, workpiece is contained on the axle other end, the end face of workpiece and the locating surface on the axle are adjacent to, unlikely crooked, screw in inner cone again, at this moment the elastic tip of anchor clamps is because the screw-in of inner cone and dilating gradually, with the workpiece swelling on axle; After completion of processing, the counter-rotating inner cone restores to the original state the elastic tip of axle, can take off workpiece like a cork.

The external diameter of workpiece endoporus of the present utility model and axle adopts matched in clearance, so both can make elastic tip clamping work pieces under the as far as possible little situation of distortion of axle, can make workpiece loading and unloading convenient, fast again.The utility model centering precision height, simple in structure, cost is low.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation that groove is set on the internal taper hole of utility model embodiment 1.

The specific embodiment

Be described further below in conjunction with drawings and Examples.

Embodiment 1

As shown in Figure 1, a kind of internal-expansion type positioning fixture 10, form by axle 1 and the locating surface 2 that is arranged on the axle, it is conical that one end 3 of axle is, the spindle hole of lathe adapts with connection, the axle other end 5 is provided with an axial internal taper hole 8, is arranged with four grooves 4, groove width 1.5～2.0mm at the inner cone hole wall by waiting.As shown in Figure 2.In internal taper hole 8, be provided with the inner cone consistent 6 with the internal taper hole tapering.

During use, earlier inner cone 6 is screwed out, workpiece 7 is contained on the axle other end, the end face and the locating surface on the axle 2 of workpiece 7 are adjacent to, unlikely crooked, screw in inner cone 6 again, at this moment since the axle other end 5 because the screw-in of inner cone 6 and dilating gradually, with workpiece 7 swellings on axle 1; After completion of processing, counter-rotating inner cone 6 restores to the original state the other end 5 of axle, can take off workpiece 7 like a cork.

Claims (3)

1. internal-expansion type positioning fixture, form by axle and the locating surface that is arranged on the axle, it is conical that one end of axle is, the spindle hole of lathe adapts with connection, it is characterized in that, the described axle other end is provided with an axial internal taper hole, and the inner cone hole wall by etc. be arranged with some grooves, in described internal taper hole, be provided with the inner cone consistent with the internal taper hole tapering.
2. internal-expansion type positioning fixture according to claim 1 is characterized in that, described inner cone hole wall is opened groove by 6 five equilibriums or 4 five equilibriums, groove width 1.5～2.0mm.
3. internal-expansion type positioning fixture according to claim 1 and 2 is characterized in that the length of described inner cone is greater than internal taper hole.
CN2010206016710U 2010-11-09 2010-11-09 Inner expansion type positioning clamp CN201862802U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206016710U CN201862802U (en) 2010-11-09 2010-11-09 Inner expansion type positioning clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206016710U CN201862802U (en) 2010-11-09 2010-11-09 Inner expansion type positioning clamp

Publications (1)

Publication Number Publication Date
CN201862802U true CN201862802U (en) 2011-06-15

Family

ID=44133969

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206016710U CN201862802U (en) 2010-11-09 2010-11-09 Inner expansion type positioning clamp

Country Status (1)

Country Link
CN (1) CN201862802U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102357826A (en) * 2011-09-26 2012-02-22 江苏富丽华通用设备有限公司 Self-centering fixture
CN102873564A (en) * 2012-10-12 2013-01-16 黄石市中天机械制造有限责任公司 Automatic centering fixture for multi-tool lathe
CN102922329A (en) * 2012-11-08 2013-02-13 无锡新宏泰电器科技股份有限公司 Fast clamping fixture for bearing processing
CN103182402A (en) * 2011-12-29 2013-07-03 安东石油技术（集团）有限公司 Tensioning mechanism and manufacturing method thereof and gun barrel
CN103921142A (en) * 2014-04-18 2014-07-16 蒋剑锋 Fixing clamp for turning special-shaped workpiece
CN103990825A (en) * 2014-06-18 2014-08-20 中核(天津)科技发展有限公司 Machining tool for ultrathin-walled cylinder workpiece
CN104002122A (en) * 2014-01-10 2014-08-27 宁波祥润自动化设备有限公司 Press fitting mechanism for preventing positional deviation of water pipe joint of automobile engine oil cooler
CN104014834A (en) * 2014-05-27 2014-09-03 江西洪都航空工业集团有限责任公司 Thin-wall conduit machining tool
CN105772778A (en) * 2016-05-12 2016-07-20 浙江万里扬股份有限公司 Split type annular locating sleeve, locating device and machining equipment

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102357826A (en) * 2011-09-26 2012-02-22 江苏富丽华通用设备有限公司 Self-centering fixture
CN102357826B (en) * 2011-09-26 2012-11-07 江苏富丽华通用设备有限公司 Self-centering fixture
CN103182402A (en) * 2011-12-29 2013-07-03 安东石油技术（集团）有限公司 Tensioning mechanism and manufacturing method thereof and gun barrel
CN102873564A (en) * 2012-10-12 2013-01-16 黄石市中天机械制造有限责任公司 Automatic centering fixture for multi-tool lathe
CN102873564B (en) * 2012-10-12 2014-08-06 黄石市中天机械制造有限责任公司 Automatic centering fixture for multi-tool lathe
CN102922329A (en) * 2012-11-08 2013-02-13 无锡新宏泰电器科技股份有限公司 Fast clamping fixture for bearing processing
CN104002122B (en) * 2014-01-10 2017-01-11 宁波祥润自动化设备有限公司 Press fitting mechanism for preventing positional deviation of water pipe joint of automobile engine oil cooler
CN104002122A (en) * 2014-01-10 2014-08-27 宁波祥润自动化设备有限公司 Press fitting mechanism for preventing positional deviation of water pipe joint of automobile engine oil cooler
CN103921142A (en) * 2014-04-18 2014-07-16 蒋剑锋 Fixing clamp for turning special-shaped workpiece
CN104014834A (en) * 2014-05-27 2014-09-03 江西洪都航空工业集团有限责任公司 Thin-wall conduit machining tool
CN103990825A (en) * 2014-06-18 2014-08-20 中核(天津)科技发展有限公司 Machining tool for ultrathin-walled cylinder workpiece
CN105772778A (en) * 2016-05-12 2016-07-20 浙江万里扬股份有限公司 Split type annular locating sleeve, locating device and machining equipment

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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: 20110615

Termination date: 20131109

C17 Cessation of patent right