CN203076934U - Shaft neck elastic expanding-sleeve-type locating fixture - Google Patents

Shaft neck elastic expanding-sleeve-type locating fixture Download PDF

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Publication number
CN203076934U
CN203076934U CN 201220676169 CN201220676169U CN203076934U CN 203076934 U CN203076934 U CN 203076934U CN 201220676169 CN201220676169 CN 201220676169 CN 201220676169 U CN201220676169 U CN 201220676169U CN 203076934 U CN203076934 U CN 203076934U
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CN
China
Prior art keywords
sleeve
cone
elastic expansion
axle journal
bolt
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
CN 201220676169
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Chinese (zh)
Inventor
江金子
陈邦辉
李晓将
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.)
Changzhou Jinruida Science & Technology Co Ltd
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Changzhou Jinruida Science & Technology 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
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Priority to CN 201220676169 priority Critical patent/CN203076934U/en
Application granted granted Critical
Publication of CN203076934U publication Critical patent/CN203076934U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the field of diesel locomotive diesel engine part machining and manufacturing, in particular to a shaft neck elastic expanding-sleeve-type locating fixture. The shaft neck elastic expanding-sleeve-type locating fixture is composed of a base plate, a tool compression bolt set, a base plate, an elastic expanding sleeve, a compression spring, a nut, a gasket, a taper shaft, a movable taper body, a tool compression bolt set, a compression plate, a compression plate bearing bolt set, and a cutting flat pin, wherein the base plate is provided with the cutting flat pin. The fixture can enable a workpiece to be correct and reliable in location in the fixture, and high in precision. After first set of a workpiece coordinate ends, recalibration is not needed, auxiliary calibration time is saved, and machining efficiency is improved. Using and operating are convenient, and the shaft neck elasticity expanding-sleeve-type locating fixture is simple and practical. Through an axial compression method, the workpiece is little in clamping deformation.

Description

A kind of axle journal elastic expansion-sleeve formula positioning fixture
Technical field
The utility model relates to the diesel engine of diesel locomotive part processing and makes field, especially a kind of camshaft journal clamp for machining.
Background technology
In diesel engine of diesel locomotive, camshaft system has more piece section cam axle assembly unit connection to form mostly.Axle journal connects a vital part of each section cam axle just in the camshaft system, it should guarantee to connect the linearity of back camshaft system, guarantee the phase relation between each cam in the camshaft system again, so axle journal end face locating hole and screw are higher to the datum hole position accuracy demand.In axle journal end-face hole process, method one is by every part being proofreaied and correct by datum hole, determined the part coordinate position, and the correction work amount is big like this, and troublesome poeration; Method two is that because locating shaft and hole must be matched in clearance, positioning accuracy is low like this, is difficult to guarantee part processing precision by fixing locating shaft location.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of axle journal elastic expansion-sleeve formula positioning fixture is provided, make axle journal in the end-face hole process, eliminate part positioning error, and make parts fixation convenient and swift, positioning accuracy height, thereby the working (machining) efficiency of raising part.
The technical scheme that its technical problem that solves the utility model adopts is: axle journal elastic expansion-sleeve formula positioning fixture, by base plate, frock hold-down bolt group, backing plate, elastic expansion-sleeve, compression spring, nut, packing ring, the axis of cone, activity cone, Work-sheet pressing bolt group, pressing plate, pressing plate bolt group, cut cotter pilotage and form, described base plate is provided with cuts cotter pilotage.
The location fit clearance of activity cone endoporus and axis of cone axle journal cylindrical is 0.01~0.04mm.
Dispose three groups of compression springs uniform between the activity cone endoporus and the axis of cone with respect to axis of cone center.
The following inner conical surface of the male cone (strobilus masculinus) of axis of cone bottom and elastic expansion-sleeve matches, and the last inner conical surface of the male cone (strobilus masculinus) of activity cone and elastic expansion-sleeve matches, and cone angle is 30 °.
The elastic expansion-sleeve upper and lower side is evenly equipped with the open slot of 4 wide 2mm respectively.
The elastic expansion-sleeve cylindrical is 0.02~0.06mm with the fit clearance of the axle journal part endoporus that is positioned to be processed.
Pressing plate and pressing plate bolt group have three groups, and axis of cone axle center is circumference uniform distribution relatively.
The beneficial effects of the utility model, the one, the axle journal part is located correct reliable in anchor clamps, the precision height; The 2nd, initial workpiece need not to proofread and correct again after setting the finished piece(s) coordinate, saves auxiliary correction time, improves working (machining) efficiency greatly; Three be to use easy to operate and simple and practical; The 4th, by the axial compression mode, the distortion of axle journal parts fixation is little.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model adds man-hour at axle journal part one station end-face hole a structural representation.
Fig. 2 is the utility model adds man-hour at axle journal part two station end-face holes a structural representation.
Among the figure: 1. base plate, 2. frock hold-down bolt group, 3. backing plate, 4. elastic expansion-sleeve, 5. compression spring, 6. nut, 7. packing ring, the 8. axis of cone, 9. activity cone, 10. Work-sheet pressing bolt group, 11. pressing plates, 12. pressing plate bolt groups, 13. cut cotter pilotage.
The specific embodiment
Axle journal elastic expansion-sleeve formula positioning fixture shown in Figure 1 by base plate 1, frock hold-down bolt group 2, backing plate 3, elastic expansion-sleeve 4, compression spring 5, nut 6, packing ring 7, the axis of cone 8, activity cone 9, Work-sheet pressing bolt group 10, pressing plate 11, pressing plate bolt group 12, cut cotter pilotage 13 and form.Axle journal elastic expansion-sleeve formula positioning fixture shown in Figure 2, described base plate 1 is provided with cuts cotter pilotage 13, can be when processing axle journal part second end-face hole, cut in first end-face hole that cotter pilotage 13 is positioned to have processed, thereby determine that second end-face hole of axle journal part adds the coordinate position in man-hour.
In Fig. 1, the axle journal part is carried out station end-face hole processing.The anchor clamps job step: the first step, behind each cooperation of the axle journal part of cleaning out anchor clamps, being processed and installed surface, the base plate 1 usefulness frock hold-down bolt group 2 that will have the axis of cone 8 is pressed on the vertical machining centre, and puts backing plate 3; Second step, compression spring 5 is filled in the spring mounting hole of the axis of cone 8, elastic expansion-sleeve 4 is enclosed within on the axis of cone 8, again institute's processing axle journal part is enclosed within elastic expansion-sleeve 4 outsides; The 3rd step put activity cone 9 to elastic expansion-sleeve 4 internal taper holes by the axis of cone 8 location, was pressed on the compression spring 5; In the 4th step, packing ring 7 is inserted in the screw rod of the axis of cone 8 ends, and screws on nut 6, activity cone 9 is pressed down, thereby impel elastic expansion-sleeve 4 external diameter under activity cone 9 and the axis of cone 8 male cone (strobilus masculinus) turgor pressures to increase, with axle journal part endoporus clamping and positioning, this moment, nut 6 was in tight condition; In the 5th step, three groups of pressing plates 11 that are connected base plate 1 by pressing plate bolt group 12 are on the axle journal part card, and compress with workpiece hold-down bolt group 10, can begin like this axle journal part is processed; In the 6th step, the axle journal part unclamps Work-sheet pressing bolt group 10 earlier after a station completion of processing, push pressing plate 11 aside, unclamp nut 6 again, activity cone 9 upsprings under 5 effects of compression spring, take out packing ring 7, activity cone 9 and elastic expansion-sleeve 4, at last the axle journal part is taken out from elastic expansion-sleeve 4.
The axle journal part enters the processing of two station end-face holes after a station end-face hole machines, promptly anti-body processing other end face is seen Fig. 2.The step difference of its an anchor clamps job step and an above-mentioned station end-face hole process is: when the first step, add one in the hole on the base plate 1 of clamp base and cut cotter pilotage 13; In second when step, when institute processing axle journal part is enclosed within elastic expansion-sleeve 4 outsides, should will cut in the counterbore that cotter pilotage 13 insertion axle journal parts have processed, thereby determine the coordinate position of part.All the other steps are identical.
Among Fig. 1, Fig. 2, the location fit clearance of described activity cone 9 endoporus and the axis of cone 8 axle journal cylindricals is 0.01~0.04mm, can assurance activity cone 9 with respect to the axiality of the axis of cone 8, guarantee elastic expansion-sleeve decide precision the time convenient dress get; Dispose three groups of compression springs 5 between described activity cone 9 endoporus and the axis of cone 8, the downforce that activity cone 9 is obtained when nut 6 is tightened is uniform in a circumferential direction, also can make activity cone 9 automatic and elastic expansion-sleeve 4 disengagements under the effect of compression spring 5 when completion nut 6 unclamps; The male cone (strobilus masculinus) of the axis of cone 8, activity cone 9 male cone (strobilus masculinus)s, elastic expansion-sleeve about in the of 4 inner conical surface match, cone angle is 30 °, both has been convenient to the axial clamping of anchor clamps, is easy to clamper for disassembling again; Elastic expansion-sleeve 4 upper and lower sides are evenly equipped with the open slot of 4 wide 2mm respectively, increase the harmomegathus amount of elastic expansion-sleeve 4; Elastic expansion-sleeve 4 cylindricals are 0.02~0.06mm with the fit clearance of the axle journal part endoporus that is positioned to be processed, can be under the situation that does not influence the loading and unloading part, guarantee 4 pairs of complete tensioners of axle journal part of elastic expansion-sleeve when nut 6 is tightened, reach the required positioning accuracy of processing; Pressing plate 11 and pressing plate bolt group 12 have three groups, and are circumference uniform distribution with respect to the anchor clamps axle center, can make anchor clamps axially loaded equilibrium when cramping axle journal part, compress reliable.

Claims (7)

1. axle journal elastic expansion-sleeve formula positioning fixture, it is characterized in that: by base plate (1), frock hold-down bolt group (2), backing plate (3), elastic expansion-sleeve (4), compression spring (5), nut (6), packing ring (7), the axis of cone (8), activity cone (9), Work-sheet pressing bolt group (10), pressing plate (11), pressing plate bolt group (12), cut cotter pilotage (13) and form, described base plate (1) is provided with cuts cotter pilotage (13).
2. axle journal elastic expansion-sleeve formula positioning fixture according to claim 1 is characterized in that: the location fit clearance of activity cone (9) endoporus and the axis of cone (8) axle journal cylindrical is 0.01~0.04mm.
3. axle journal elastic expansion-sleeve formula positioning fixture according to claim 1 is characterized in that: dispose three groups of compression springs (5) uniform with respect to axis of cone center between activity cone (9) endoporus and the axis of cone (8).
4. axle journal elastic expansion-sleeve formula positioning fixture according to claim 1, it is characterized in that: the male cone (strobilus masculinus) of the axis of cone (8) bottom and the following inner conical surface of elastic expansion-sleeve (4) match, the last inner conical surface of the male cone (strobilus masculinus) of activity cone (9) and elastic expansion-sleeve (4) matches, and cone angle is 30 °.
5. axle journal elastic expansion-sleeve formula positioning fixture according to claim 1 is characterized in that: elastic expansion-sleeve (4) upper and lower side is evenly equipped with the open slot of 4 wide 2mm respectively.
6. axle journal elastic expansion-sleeve formula positioning fixture according to claim 1 is characterized in that: elastic expansion-sleeve (4) cylindrical is 0.02~0.06mm with the fit clearance of the axle journal part endoporus that is positioned to be processed.
7. axle journal elastic expansion-sleeve formula positioning fixture according to claim 1 is characterized in that: pressing plate (11) and pressing plate bolt group (12) have three groups, and the anchor clamps axle center is circumference uniform distribution relatively.
CN 201220676169 2012-12-10 2012-12-10 Shaft neck elastic expanding-sleeve-type locating fixture Expired - Fee Related CN203076934U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220676169 CN203076934U (en) 2012-12-10 2012-12-10 Shaft neck elastic expanding-sleeve-type locating fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220676169 CN203076934U (en) 2012-12-10 2012-12-10 Shaft neck elastic expanding-sleeve-type locating fixture

Publications (1)

Publication Number Publication Date
CN203076934U true CN203076934U (en) 2013-07-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220676169 Expired - Fee Related CN203076934U (en) 2012-12-10 2012-12-10 Shaft neck elastic expanding-sleeve-type locating fixture

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103639735A (en) * 2013-12-09 2014-03-19 强胜精密机械(苏州)有限公司 Expansion type clamping device
CN105033689A (en) * 2015-09-15 2015-11-11 沈阳飞机工业(集团)有限公司 Novel fixed-force press plate device
CN105415008A (en) * 2015-12-11 2016-03-23 江西昌河航空工业有限公司 Elastic locating and clamping device with reset function
CN105538014A (en) * 2016-03-16 2016-05-04 苏州工业职业技术学院 Turning clamp special for eccentric wheel
CN106112754A (en) * 2016-06-29 2016-11-16 重庆大学 The charger of prestressing force circumference sbrasive belt grinding annular element

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103639735A (en) * 2013-12-09 2014-03-19 强胜精密机械(苏州)有限公司 Expansion type clamping device
CN105033689A (en) * 2015-09-15 2015-11-11 沈阳飞机工业(集团)有限公司 Novel fixed-force press plate device
CN105415008A (en) * 2015-12-11 2016-03-23 江西昌河航空工业有限公司 Elastic locating and clamping device with reset function
CN105538014A (en) * 2016-03-16 2016-05-04 苏州工业职业技术学院 Turning clamp special for eccentric wheel
CN105538014B (en) * 2016-03-16 2017-10-17 苏州工业职业技术学院 A kind of eccentric wheel Special purpose turning fixture
CN106112754A (en) * 2016-06-29 2016-11-16 重庆大学 The charger of prestressing force circumference sbrasive belt grinding annular element

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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: 20130724

Termination date: 20141210

EXPY Termination of patent right or utility model