CN203725805U - Special clamp for finish turning of high-precision spindle inner hole - Google Patents

Special clamp for finish turning of high-precision spindle inner hole Download PDF

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Publication number
CN203725805U
CN203725805U CN201420088986.8U CN201420088986U CN203725805U CN 203725805 U CN203725805 U CN 203725805U CN 201420088986 U CN201420088986 U CN 201420088986U CN 203725805 U CN203725805 U CN 203725805U
Authority
CN
China
Prior art keywords
main shaft
fixedly connected
jaw
finish turning
jaw body
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
CN201420088986.8U
Other languages
Chinese (zh)
Inventor
董世恩
赵盼红
燕群
崔若平
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.)
JINAN ZNSN MACHINERY MANUFACTURING CO LTD
Original Assignee
JINAN ZNSN MACHINERY MANUFACTURING 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 JINAN ZNSN MACHINERY MANUFACTURING CO LTD filed Critical JINAN ZNSN MACHINERY MANUFACTURING CO LTD
Priority to CN201420088986.8U priority Critical patent/CN203725805U/en
Application granted granted Critical
Publication of CN203725805U publication Critical patent/CN203725805U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A special clamp for finish turning of a high-precision spindle inner hole comprises a spring collet center, a lathe spindle, a three-jaw self-centering chuck and three jaws. The spring collet center is arranged in a taper hole of the lathe spindle, one end of the three-jaw self-centering chuck is connected with the lathe spindle, and the other end of the three-jaw self-centering chuck is fixedly connected with the three jaws. The jaws clamp one end of the spindle inner hole, and the spring collet center jacks the other end of the spindle. The spindle is in a clamping manner of once clamping as once jacking, requirements of position size of the bottom surface of the inner hole and jumping of the inner hole are guaranteed.

Description

A kind of high-precision main shaft finish turning endoporus special fixture
Technical field
The utility model relates to Machining Technology field, and concrete is a kind of high-precision main shaft finish turning endoporus special fixture.
Background technology
Main shaft is the important spare part of heavy type lorry transmission-gear box, is carrying the important function of shift and transmitting torque.Conventionally heavy-duty car has tens gears, and main shaft is again the main parts size that shifting gear is installed, so main shaft has a plurality of locating slots of using for gear axial location.
One end of general main shaft is designed to be with inner hole structure, be used for installing cating nipple, endoporus has the requirement of beating, there is perpendicularity requirement endoporus bottom surface, and endoporus bottom surface and locating slot axial dimension require strict, if adopt indirect method, as adopt grinding-wheel grinder endoporus, precision due to the effect of attrition aperture of emery wheel, causes aperture inconsistent, and product quality is difficult to control; And grinding production efficiency is low, processing staff is had relatively high expectations, increased cost of human resources, therefore adopt turning to process this endoporus, when processing this endoporus, turning need to adopt special fixture to position, make positioning datum identical with design basis, just can guarantee the position dimension requirement of bottom surface, hole.The existing weak point of prior art that Here it is.
Utility model content
Technical problem to be solved in the utility model, is exactly for the existing deficiency of prior art, and a kind of high-precision main shaft finish turning endoporus special fixture is provided, and guarantees the position dimension requirement of endoporus bottom surface.
This programme is achieved by the following technical measures: a kind of high-precision main shaft finish turning endoporus special fixture, comprise spring center, lathe spindle, three-jaw self-centering chuck and claw, described spring center is arranged in the taper hole of lathe spindle, and described three-jaw self-centering chuck one end is connected with lathe spindle, the other end is fixedly connected with claw.
Above-mentioned claw is provided with three and equally spaced being fixed on three-jaw self-centering chuck.
That above-mentioned spring center comprises is top, tapered sleeve and nut, described tapered sleeve mates with the taper hole of lathe spindle, described tapered sleeve one end is provided with top through hole I of mating, the tapered sleeve other end and is fixedly connected with nut, on described nut, be provided with and top through hole II of mating, the dead in line of described through hole I and through hole II, describedly be provided with the shaft shoulder on top, described top periphery is provided with spring and spring at the shaft shoulder and is provided with between tapered sleeve one end of through hole I.Top can moving axially in tapered sleeve, when main shaft is installed, the centre bore of the opposite end of top and the interior nose end of main shaft car coordinates installation, spring is compressed, the top direction to lathe spindle moves, and after main shaft car endoporus one end is clamped by claw, toply under the effect of spring, main shaft is held out against.
Above-mentioned claw comprises jaw body I, locating piece and jaw body II, one end of described jaw body I is fixedly connected with three-jaw self-centering chuck, the other end is fixedly connected with jaw body II, described locating piece is fixedly connected with jaw body I, and mate with the locating slot on main shaft one end of described locating piece.One side contacts of the locating slot on locating piece and main shaft, the axial location of restriction main shaft, the distance dimensional accuracy of assurance locating slot and endoporus bottom.
Above-mentioned jaw body I is fixedly connected with bolt II by bolt I with three-jaw self-centering chuck, and described jaw body II is fixedly connected with bolt III by screw with jaw body I.
Above-mentioned locating piece is fixedly connected with by bolt IV with jaw body I.
The dead in line of above-mentioned bolt III and bolt IV.
The beneficial effects of the utility model can be learnt from above-mentioned technical scheme: a kind of high-precision main shaft finish turning endoporus special fixture, comprise spring center, lathe spindle, three-jaw self-centering chuck and claw, described spring center is arranged in the taper hole of lathe spindle, and described three-jaw self-centering chuck one end is connected with lathe spindle, the other end is fixedly connected with claw.One end of described claw clamping spindle car endoporus, the other end that spring center holds out against main shaft, main shaft adopts the installation way on folder one top, and the position dimension that has guaranteed endoporus bottom surface requires and the endoporus requirement of beating.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top structural representation of Fig. 1 medi-spring;
Fig. 3 is the structural representation of claw in Fig. 1.
In figure: 1-spring center, 1.1-is top, the 1.1.1-shaft shoulder, 1.2-spring, 1.3-tapered sleeve, 1.3.1-through hole I, 1.4-nut, 1.4.1-through hole II, 2-lathe spindle, 3-three-jaw self-centering chuck, 4-main shaft, 4.1-locating slot, 4.2-endoporus, 5-claw, 5.1-jaw body I, 5.2-locating piece, 5.3-jaw body II, 6-bolt I, 7-bolt II, 8-screw, 9-bolt III, 10-bolt IV.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
As shown in the figure: a kind of high-precision main shaft finish turning endoporus special fixture, comprise spring center 1, lathe spindle 2, three-jaw self-centering chuck 3 and claw 5, described spring center 1 is arranged in the taper hole of lathe spindle 2, and described three-jaw self-centering chuck 3 one end are connected with lathe spindle 2, the other end is fixedly connected with claw 5.
Described claw 5 is provided with three and equally spaced being fixed on three-jaw self-centering chuck 3, only demonstrates the structure of a claw 5 in the structural representation shown in Fig. 1.
Described spring center 1 comprises top 1.1, tapered sleeve 1.3 and nut 1.4, described tapered sleeve 1.3 mates with the taper hole of lathe spindle 2, described tapered sleeve 1.3 one end are provided with the through hole I 1.3.1 mating with top 1.1, tapered sleeve 1.3 other ends are fixedly connected with nut 1.4, on described nut 1.4, be provided with the through hole II 1.4.1 mating with top 1.1, the dead in line of described through hole I 1.3.1 and through hole II 1.4.1, on described top 1.1, be provided with shaft shoulder 1.1.1, described top 1.1 periphery is provided with spring 1.2, and spring 1.2 is at shaft shoulder 1.1.1 and be provided with between tapered sleeve 1.3 one end of through hole I 1.3.1.Top 1.1 can move axially in tapered sleeve 1.3, when main shaft 4 is installed, top 1.1 coordinate installation with the centre bore of the opposite end of main shaft 4 main shaft car endoporus 4.2 ends, spring 1.2 is compressed, top 1.1 directions to lathe spindle 2 move, after one end of main shaft 4 car endoporus 4.2 is clamped by claw 5, top 1.1 hold out against main shaft 4 under the effect of spring 1.2.
Described claw 5 comprises jaw body I 5.1, locating piece 5.2 and jaw body II 5.3, one end of described jaw body I 5.1 is fixedly connected with three-jaw self-centering chuck 3, the other end is fixedly connected with jaw body II 5.3, described locating piece 5.2 is fixedly connected with jaw body I 5.1, and mate with the locating slot 4.1 on main shaft 4 one end of described locating piece 5.2.One side contacts of the locating slot 4.1 on locating piece and main shaft 4, the axial location of restriction main shaft 4 is also located main shaft 4, guarantees the distance dimensional accuracy of locating slot 4.1 and endoporus 4.2 bottoms.
Described jaw body I 5.1 is fixedly connected with bolt II 7 by bolt I 6 with three-jaw self-centering chuck 3, and described jaw body II 5.3 is fixedly connected with bolt III 9 by screw 8 with jaw body I 5.1.
Described locating piece 5.2 is fixedly connected with by bolt IV 10 with jaw body I 5.1.
The dead in line of described bolt III 9 and bolt IV 10.
During use, the centre bore of the opposite end of main shaft 4 car endoporus 4.2 ends is withstood top 1.1, an end face of locating slot 4.1 is contacted with locating piece 5.2, then three-jaw self-centering chuck 3 is slowly clamped to one end of claw II 5.3 clamping spindle 4 car endoporus 4.2.Main shaft 4 adopts the installation way on folder one top, has guaranteed the requirement of beating of main shaft 4; One side contacts of the locating slot 4.1 on locating piece 5.2 and main shaft 4, the axial location of restriction main shaft 4, also to main shaft 4 location, guarantees the distance dimensional accuracy of locating slot 4.1 and endoporus 4.2 bottoms.
In the utility model, without the technical characterictic of describing, can pass through or adopt existing techniques in realizing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned embodiment; the variation that those of ordinary skill in the art makes in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.

Claims (7)

1. a high-precision main shaft finish turning endoporus special fixture, it is characterized in that: it comprises spring center, three-jaw self-centering chuck and claw, described spring center is arranged in the taper hole of lathe spindle, and described three-jaw self-centering chuck one end is connected with lathe spindle, the other end is fixedly connected with claw.
2. high-precision main shaft finish turning endoporus special fixture according to claim 1, is characterized in that: described claw is provided with three and equally spaced being fixed on three-jaw self-centering chuck.
3. high-precision main shaft finish turning endoporus special fixture according to claim 1 and 2, it is characterized in that: described spring center comprises top, tapered sleeve and nut, described tapered sleeve mates with the taper hole of lathe spindle, described tapered sleeve one end is provided with and top through hole I of mating, the tapered sleeve other end is fixedly connected with nut, on described nut, be provided with and top through hole II of mating, the dead in line of described through hole I and through hole II, describedly be provided with the shaft shoulder on top, described top periphery is provided with spring, and spring is at the shaft shoulder and be provided with between tapered sleeve one end of through hole I.
4. high-precision main shaft finish turning endoporus special fixture according to claim 1 and 2, it is characterized in that: described claw comprises jaw body I, locating piece and jaw body II, one end of described jaw body I is fixedly connected with three-jaw self-centering chuck, the other end is fixedly connected with jaw body II, described locating piece is fixedly connected with jaw body I, and mate with the locating slot on main shaft one end of described locating piece.
5. high-precision main shaft finish turning endoporus special fixture according to claim 4, it is characterized in that: described jaw body I is fixedly connected with bolt II by bolt I with three-jaw self-centering chuck, described jaw body II is fixedly connected with bolt III by screw with jaw body I.
6. high-precision main shaft finish turning endoporus special fixture according to claim 5, is characterized in that: described locating piece is fixedly connected with by bolt IV with jaw body I.
7. high-precision main shaft finish turning endoporus special fixture according to claim 6, is characterized in that: the dead in line of described bolt III and bolt IV.
CN201420088986.8U 2014-02-28 2014-02-28 Special clamp for finish turning of high-precision spindle inner hole Expired - Fee Related CN203725805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420088986.8U CN203725805U (en) 2014-02-28 2014-02-28 Special clamp for finish turning of high-precision spindle inner hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420088986.8U CN203725805U (en) 2014-02-28 2014-02-28 Special clamp for finish turning of high-precision spindle inner hole

Publications (1)

Publication Number Publication Date
CN203725805U true CN203725805U (en) 2014-07-23

Family

ID=51195910

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420088986.8U Expired - Fee Related CN203725805U (en) 2014-02-28 2014-02-28 Special clamp for finish turning of high-precision spindle inner hole

Country Status (1)

Country Link
CN (1) CN203725805U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985204A (en) * 2015-06-25 2015-10-21 盐城工学院 Method for controlling axial precision of crank shaft
CN110976923A (en) * 2019-12-18 2020-04-10 广州市昊志机电股份有限公司 Centre, centre clamp holder and centre automatic switching device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104985204A (en) * 2015-06-25 2015-10-21 盐城工学院 Method for controlling axial precision of crank shaft
CN110976923A (en) * 2019-12-18 2020-04-10 广州市昊志机电股份有限公司 Centre, centre clamp holder and centre automatic switching device
CN110976923B (en) * 2019-12-18 2021-11-16 广州市昊志机电股份有限公司 Centre clamp holder and centre automatic switching control equipment

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

Granted publication date: 20140723

Termination date: 20170228