CN104209710B - A kind of turbocharger floating bushing processing method - Google Patents

A kind of turbocharger floating bushing processing method Download PDF

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Publication number
CN104209710B
CN104209710B CN201410468814.8A CN201410468814A CN104209710B CN 104209710 B CN104209710 B CN 104209710B CN 201410468814 A CN201410468814 A CN 201410468814A CN 104209710 B CN104209710 B CN 104209710B
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endoporus
cylindrical
milling
cut
turning
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CN104209710A (en
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段昌文
胡亚
姚胜
蒋利
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Chongqing Jiangjin Shipbuilding Industry Co., Ltd.
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CHONGQING JIANGJIN SHIPBUILDING INDUSTRY Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

A kind of turbocharger floating bushing processing method, comprises the following steps: rough turn cylindrical and endoporus;Numerical control turning milling center car endoporus and cylindrical, bore three fuel feed holes and an anti-rotation pin-and-hole, the oil groove that three fuel feed holes of milling are corresponding, fine turning outer circle and half finish turning endoporus, the non-cylindrical cutting off end and inner bore chamfering, cut off by length, and the non-end face that cuts off makes marks, turn around, cylindrical and the inner bore chamfering of end will be cut off;Remove all apertures burr, grind and cut off end face;Milling endoporus and oil groove;Go to institute jagged;Comprehensive test.The turbocharger floating bushing processing method of the present invention, it is ensured that endoporus and oil groove and the precision in oil film wedge face, improves production efficiency, and process time is shortened to 2.35m/ part by original 3.93m/ part.

Description

A kind of turbocharger floating bushing processing method
Technical field
The present invention relates to turbocharger mechanical field, be specifically related to a kind of turbocharger floating bushing processing side Method.
Background technology
Turbocharger on diesel engine belongs to the parts that run up, wherein the floating bushing in turbocharger Run up, accordingly, as core assembly portion set in turbocharger as floating bearing supporting turbine wheel shaft The quality of vital part floating bushing directly affect the use of turbocharger.Existing floating bushing procedure of processing As follows: (1) rough turn cylindrical and endoporus;(2) face work, cylindrical and endoporus, cut off, and non-cuts off end face Make marks;(3) three fuel feed holes of milling and an anti-rotation pin-and-hole;(4) upper milling oil groove instrument, milling endoporus In three oil grooves corresponding with three fuel feed holes;(5) deburring, grinds and cuts off end face;(6) turner is used Have and use mandrel to position endoporus, using inside and outside pressing plate pressure side face fine turning outer circle and endoporus respectively;(7) Deburring;(8) milling oil film wedge face;(9) deburring, grinds;(10) comprehensive test.Existing turbocharging Device floating bushing processing method has the disadvantage that 1. turnover operations are many, and production efficiency is low;2. use frock many, Resetting can cause certain cumulative error, affects final endoporus and oil film wedge surface accuracy.
Summary of the invention
In order to solve in prior art, turbocharger floating bushing production efficiency is low and turbocharger is floated The technical problem that dynamic set endoporus is poor with oil film wedge surface accuracy, the present invention provides a kind of turbocharger floating bushing to add Work method, by utilizing numerical control turning milling center not use milling oil groove frock just can complete in same operation Milling oil groove;Do not use turner tool and mandrel and inside and outside pressing plate just can complete fine turning outer circle and half finish turning Endoporus, creep into oilhole and anti-rotation pin-and-hole, cut node face, endoporus and outer rounded corner, save installing/dismounting work ETL estimated time of loading the most also shortens turnover operation and improves production efficiency, it is ensured that endoporus and the axiality of cylindrical Requirement, and disposably milling endoporus and oil film wedge face, it is ensured that endoporus is thick with the axiality in oil film wedge face and surface Rugosity.
It is an object of the invention to be achieved through the following technical solutions:
A kind of turbocharger floating bushing processing method: comprise the following steps:
(1) rough turn cylindrical and endoporus;
(2) numerical control turning milling center car endoporus and cylindrical, bores three fuel feed holes and an anti-rotation pin-and-hole, milling The oil groove that three fuel feed holes are corresponding, fine turning outer circle and half finish turning endoporus, the non-cylindrical cutting off end and endoporus fall Angle, is cut off by length, and the non-end face that cuts off makes marks, and turns around, and will cut off cylindrical and the inner bore chamfering of end;
(3) remove all apertures burr, grind and cut off end face;
(4) end face location, milling endoporus and oil film wedge face are cut off with non-;
(5) go to institute jagged;
(6) comprehensive test.
Further, in step (2), use numerical control turning milling center, three-jaw folder cylindrical, turning inner hole and Cylindrical, respectively stays 0.3~0.4mm surplus, bores three fuel feed holes, an anti-rotation pin-and-hole and three fuel feed holes of milling Corresponding oil groove, then fine turning outer circle and half finish turning endoporus, the non-endoporus cutting off end and outer rounded corner, press Length is cut off, and the non-end face A that cuts off makes marks;Tune, soft three-jaw gently presss from both sides cylindrical, will cut off the cylindrical of end And inner bore chamfering.Same operation completes creep in oilhole and anti-rotation pin-and-hole, fine turning outer circle and half finish turning Cut off by length again after hole, milling oil groove, it is no longer necessary to use milling oil groove instrument milling oil groove, be also no longer necessary to Use turner tool and mandrel location endoporus and use inside and outside pressing plate pressure side face fine turning outer circle and endoporus respectively, I.e. ensure that inside and outside circle dimensional accuracy, roughness, axiality, and the position degree of fuel feed hole and oil groove, Also shorten turnover operation while of also saving the installing/dismounting frock time, improve production efficiency.
Further, in step (4), positioning with the end face of labelling, centering inner hole of workpiece, circle is beated not More than 0.005mm, oil film wedge face at milling endoporus and six;Disposable milling endoporus and oil film wedge face, it is ensured that interior The axiality in hole and oil film wedge face and surface roughness.
Beneficial effects of the present invention:
Same operation completes creep into oilhole and anti-rotation pin-and-hole, fine turning outer circle and half finish turning endoporus, milling oil Cut off by length again after groove, it is no longer necessary to use milling oil groove instrument milling oil groove, be also no longer necessary to use turner Tool and mandrel position endoporus and use inside and outside pressing plate pressure side face fine turning outer circle and endoporus respectively, both ensure Inside and outside circle dimensional accuracy, roughness, axiality, and fuel feed hole and the position degree of oil groove, also save Installing/dismounting frock time also shortens turnover operation simultaneously, improves production efficiency;Disposable milling Endoporus and oil film wedge face, it is ensured that endoporus and the axiality in oil film wedge face and surface roughness;Through measuring work sheet The part turbocharger floating bushing time is shortened to 2.35m/ part by 3.93m/ part.
Accompanying drawing explanation
Fig. 1 is turbocharger floating bushing blahk structure schematic diagram.
Fig. 2 is turbocharger floating bushing semi-finished product structure schematic diagram.
Fig. 3 is turbocharger floating bushing finished product structure schematic diagram.
Fig. 4 is the partial enlarged drawing in Fig. 3 at B.
Reference:
1-cylindrical;2-endoporus;3-fuel feed hole;4-anti-rotation pin-and-hole;5-oil groove;6-oil film wedge face.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further details.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present invention is a kind of turbocharger floating bushing processing side Method, comprises the following steps:
(1) rough turn cylindrical 1 and endoporus 2;
(2) numerical control turning milling center car endoporus 2 and cylindrical 1, then bores three fuel feed holes 3 and one and prevents Ship and resell on another market hole 4, the oil groove 5 that three fuel feed holes of milling are corresponding, fine turning outer circle 1 and half finish turning endoporus 2, cut non- The cylindrical of the broken ends of fractured bone and endoporus carry out chamfering, and cut off by length, and the non-end face A that cuts off makes marks;Then fall Head, will cut off cylindrical and the inner bore chamfering of end;
(3) remove all apertures burr, grind and cut off end face;
(4) milling endoporus 2 and oil film wedge face 6;
(5) go to institute jagged;
(6) comprehensive test;
In step (2), as in figure 2 it is shown, use numerical control turning milling center, three-jaw folder cylindrical 1, turning Endoporus 2 and cylindrical 1, respectively stay 0.3~0.4mm surplus, bores 3, anti-rotation pin-and-hole 4 of three fuel feed holes And the oil groove 5 that three fuel feed holes of milling are corresponding, then fine turning outer circle 1, half finish turning endoporus 2, non-cut off the interior of end Hole and outer rounded corner, cut off by length, and the non-end face A that cuts off makes marks;Tune, outside soft three-jaw gently presss from both sides Circle 1, carries out chamfering by the endoporus and cylindrical that cut off end;
In step (4), positioning with end face A, centering inner hole of workpiece 2, circle beats no more than 0.005, Oil film wedge face 6 at milling endoporus 2 and six.
In sum, the turbocharger floating bushing processing method of the present invention, it is ensured that endoporus and oil groove and The precision in oil film wedge face, improves production efficiency, and process time is shortened to 2.35m/ by original 3.93m/ part Part.

Claims (3)

1. a turbocharger floating bushing processing method, it is characterised in that: comprise the following steps:
(1) rough turn cylindrical and endoporus;
(2) numerical control turning milling center car endoporus and cylindrical, bores three fuel feed holes and an anti-rotation pin-and-hole, milling The oil groove that three fuel feed holes are corresponding, fine turning outer circle and half finish turning endoporus, the non-cylindrical cutting off end and endoporus fall Angle, is cut off by length, and the non-end face that cuts off makes marks, and turns around, and will cut off cylindrical and the inner bore chamfering of end;
(3) remove all apertures burr, grind and cut off end face;
(4) milling endoporus and oil film wedge face;
(5) go to institute jagged;
(6) comprehensive test.
2. a kind of turbocharger floating bushing processing method as claimed in claim 1, it is characterised in that: In step (2), use numerical control turning milling center, three-jaw folder cylindrical, turning inner hole and cylindrical, respectively stay 0.3~ 0.4mm surplus, bores the oil groove that three fuel feed holes, an anti-rotation pin-and-hole and three fuel feed holes of milling are corresponding, Fine turning outer circle and half finish turning endoporus, the non-endoporus cutting off end and outer rounded corner, cut off by length again, non-cuts Broken ends of fractured bone face makes marks;Tune, soft three-jaw gently presss from both sides cylindrical, will cut off cylindrical and the inner bore chamfering of end.
3. a kind of turbocharger floating bushing processing method as claimed in claim 1, it is characterised in that: In step (4), positioning with the end face of labelling, centering inner hole of workpiece, circle beats no more than 0.005, Oil film wedge face at milling endoporus and six by drawing.
CN201410468814.8A 2014-09-15 2014-09-15 A kind of turbocharger floating bushing processing method Active CN104209710B (en)

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CN104786025B (en) * 2015-04-16 2017-07-28 派罗特克(深圳)高温材料有限公司 A kind of method of use cast iron profile material Drilling operation protective cover for thermocouple
CN106271456B (en) * 2016-09-05 2018-03-02 重庆江增船舶重工有限公司 A kind of axle sleeve processing technology
CN107175465A (en) * 2017-05-18 2017-09-19 济南重工股份有限公司 The processing technology of typical large diameter thin wall part
CN107160114B (en) * 2017-07-14 2019-05-10 重庆江增船舶重工有限公司 The processing method of floating disc
CN109277848B (en) * 2018-11-02 2021-05-25 河北晶龙阳光设备有限公司 Processing technology of seed crystal chuck inner sleeve

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JP3580891B2 (en) * 1995-03-28 2004-10-27 Ntn株式会社 Machining method for axle bearing outer ring
CN1690382A (en) * 2004-04-26 2005-11-02 周彦学 Petrol engine turbocharger and method for manufacturing the same
CN100532008C (en) * 2007-05-18 2009-08-26 瓦房店光阳轴承集团有限公司 Method for processing mechanical diaphragm pump crank bearing bushing
CN102848143A (en) * 2012-08-29 2013-01-02 苏州市意可机电有限公司 Processing technology of round pipe connector
CN103317311B (en) * 2013-07-08 2015-06-24 东方电气集团东方汽轮机有限公司 Machining method of floating cylinder
CN103433711A (en) * 2013-09-10 2013-12-11 遵义市节庆机电有限责任公司 Processing process of shell
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