CN104174883A - Combined type boring cutter for processing R arc and end face of axle suspension bush of traction motor of locomotive - Google Patents
Combined type boring cutter for processing R arc and end face of axle suspension bush of traction motor of locomotive Download PDFInfo
- Publication number
- CN104174883A CN104174883A CN201310189445.4A CN201310189445A CN104174883A CN 104174883 A CN104174883 A CN 104174883A CN 201310189445 A CN201310189445 A CN 201310189445A CN 104174883 A CN104174883 A CN 104174883A
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- China
- Prior art keywords
- axle suspension
- suspension bush
- arc
- face
- boring
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
Abstract
The invention relates to a combined type boring cutter for processing an R arc and an end face of an axle suspension bush of a traction motor of a locomotive, and belongs to the technical field of boring cutters for the processing of axle suspension bushes, which aims at solving the quality problems of the existing manual processing method of the R arc and end face of the axle suspension bush that the alloy surface of the axle suspension bush is rough and uneven, the transverse momentum of the alloy layer and axle suspension bush is very poor, the rolling of bush is caused, and the like when the axle suspension bush is processed. The boring cutter is characterized in that the end part of a cutter rod of an R arc boring cutter of the axle suspension bush is provided with an R arc face cutter blade which coincides with the R arc of the axle suspension bush, the front cutter surface of the R arc face cutter blade is provided with a 6-degree back angle and a 6-degree front angle, the side surface of the upper end of a cutter rod of an end face boring cutter of the axle suspension bush is provided with an alloy cutter blade which is positioned on the same straight line together with the cutter rod, and the cutter blade of the alloy head is provided with a 2-degree front angle and a 10-degree back angle. The combined type boring cutter has the advantages that the axle suspension bush is processed by the existing boring machine and the R arc and end face boring cutters of the axle suspension bush, so the quality is high, the appearance is attractive, the requirements of process design are met, the time and labor are saved in the actual use process, and the product quality and production efficiency are improved.
Description
Technical field
The invention belongs to locomotive traction motor axle suspension bush processing technique field, be specifically related to a kind of combination boring cutter for traction electric machine axle suspension bush R arc and end face being processed on boring machine.
Background technology
Axle suspension bush is the vitals that traction electric machine is connected with train wheel, it is mainly used in east wind 4A, east wind 4B, Type DF 4C diesel locomotive, east wind 5, east wind 7, east wind 8B, dongfeng-12 diesel locomotive, and Shaoshan 3, Shaoshan 4 type Electric Locomotives, be called as " flexible axle holds " of locomotive.Its structure as shown in Figure 1.The requirement of locomotive overhaul code, the radial clearance of axle suspension bush and axle is 0.2-0.4mm,, and with boring cutter, axle suspension bush R arc 1 and 3 processing of axle suspension bush end face are belonged to technological gap in technique.In practice, axle suspension bush R arc 1 wherein can not contact R arc 2 with wheel, if contact can affect wheel overproof to the transverse momentum gap between seize neck end face 4 and axle suspension bush end face 3 on the one hand, causes watt accident of stone roller; On the other hand, in the time of locomotive operation, friction generates heat in meeting, and the alloy on axle suspension bush is melted, and causes axle suspension bush to damage, thereby affect the safe operation of locomotive.
The R arc of axle suspension bush and end face are generally to be controlled by tilery, are a cast molding.On the axle suspension bush boring machine of locomotive overhaul factory, be not equipped with R arc and end face boring cutter.Therefore when in locomotive repair process, motor wheel is to assembling, manually scrape with willow leaf scraper, grind with pneumatic angle grinding machine, or axle suspension bush R arc and end face are processed by the way of manual reamer strand, because quality can not ensure, affect the assembling of train wheel and motor, and the secondary axle suspension bush of manual processing one must be more than half an hour, and labour intensity is large and manual crudy is poor.Affected by the hand weight of exerting oneself because scraping watt-hour, mainly, by the smooth feeling of range estimation, hand contact, manually there is serious rough and uneven in surface phenomenon with the axle suspension bush alloy surface of scraper processing in measuring method, and the presentation quality of impact watt, easily causes stone roller watt accident.Sometimes firmly overweight, cause the overproof or alloy-layer of axle suspension bush alloy-layer to scrape to wear and see copper, cause axle suspension bush to scrap, cause economic loss.If be used in locomotive operation, the lighter causes axle suspension bush to grind watt, does over again, lifts car, galleting tile processing again, and severe one can cause the locking of locomotive bearing shell, and locomotive machine is broken, the even serious security incident of car crash.
Summary of the invention
The object of the invention is for above-mentioned deficiency, and a kind of cost proposing is low, process time is short, ensures that axle suspension bush crudy meets the requirements, and can be fixed on locomotive traction motor axle suspension bush R arc and end face processing combination boring cutter on boring machine.
Technical solution of the present invention is: the end of locomotive traction motor axle suspension bush R arc boring bar is provided with the R cambered surface blade coinciding with axle suspension bush R arc, and the rake face of R cambered surface blade is provided with the relief angle of 6 degree and the anterior angle of 6 degree; The upper side of axle suspension bush end face boring bar is provided with and knife bar alloy head blade point-blank, and alloy head blade is provided with the anterior angle of 2 degree and the relief angle of 10 degree.
R cambered surface blade described in technical solution of the present invention is a skewed cambered surface in axle suspension bush R arc boring bar end, front angular direction on R cambered surface blade rake face is consistent with boring spindle direction of rotation, and the relief angle on the rear knife face of R cambered surface blade and R cambered surface blade rake face is counterclockwise.
The front angular direction of alloy head blade on end face boring bar described in technical solution of the present invention is consistent with boring spindle direction of rotation.
Adopt after axle suspension bush R arc boring cutter of the present invention and end face boring cutter process axle suspension bush, process because of axle suspension bush R arc and end face the axle suspension bush occurring and grind a watt accident and stopped.Not only solved the R arc that occurs because of artificial axle suspension bush and end face and wheel to R arc and end face transverse momentum inadequate or overproof cause lift car, do over again, the problem such as galleting tile again, and improved locomotive traction motor axle suspension bush processing technology, in axle suspension bush process, remove the artificial production process with scraper, reamer, angle grinding machine processing axle suspension bush R arc and end face.
The present invention also has following effect, and not only quality is good for the axle suspension bush R arc processing with axle suspension bush R arc boring cutter of the present invention and end face boring cutter and end face, outward appearance U.S., and also time saving and energy saving.Processing a secondary axle suspension bush R arc and end face only needed about 5 minutes, and one-shot forming, had reduced a large amount of manpower and materials, had reduced labour cost.In addition, cutter cost of manufacture is low, makes one R arc and end face boring cutter are only needed to dozens of yuan, and 1 can be with more than 1 year end face boring cutter; And the cost of willow leaf scraper, reamer and the wind used of annual loss processing axle suspension bush, electric angle grinder be boring cutter of the present invention nearly a hundred times.Key is in locomotive operation process, to have reduced the generation that occurs quality accident because of axle suspension bush processing.Axle suspension bush R arc boring cutter of the present invention and end face boring cutter are adopted, annual cost-saved approximately 500,000 yuan.
Brief description of the drawings
Fig. 1 is axle suspension bush and takes turns R arc and end face structure schematic diagram.
Fig. 2 is axle suspension bush R arc boring cutter structural representation of the present invention.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the stereogram of Fig. 2.
Fig. 5 is axle suspension bush end face boring cutter structural representation of the present invention.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the enlarged drawing of overlooking of Fig. 5.
Fig. 8 is the stereogram of Fig. 5.
Fig. 9 is axle suspension bush R arc processing work view.
Figure 10 is axle suspension bush end face processing work view.
Detailed description of the invention
As shown in Figure 2,3, 4, end at axle suspension bush R arc boring bar 6 is provided with R cambered surface blade 5, the material of axle suspension bush R arc boring bar 6 adopts the white steel knife bar of 20 × 150mm, take turns and grind in the end of R arc boring bar 6 the R cambered surface coinciding with axle suspension bush R cambered surface 1 with white sand, R cambered surface blade 5 is a skewed cambered surface in axle suspension bush boring bar 6 ends, make to form rake face and rear knife face in the cambered surface of R cambered surface blade 5, on the rake face of R cambered surface blade 5, be provided with the anterior angle 8 of relief angle 7 and 6 degree of 6 degree.When R arc boring cutter is arranged on boring spindle, axle suspension bush R arc boring bar 6 is vertical with boring spindle direction, vertical with axle suspension bush inner hole centreline, namely to add man-hour R arc boring bar 6 R cambered surface blade 5 directions vertical with the axial direction of axle suspension bush; Direction and the boring spindle direction of rotation of the anterior angle 8 on R cambered surface blade 5 rake faces of R arc boring cutter, both consistent clockwise, relief angle 7 on rear knife face on R cambered surface blade 5 and R cambered surface blade 5 rake faces is counterclockwise, and the R cambered surface blade 5 of R arc boring cutter coincides with the R cambered surface 1 of axle suspension bush.
As Fig. 5, 6, 7, shown in 8, the upper side of axle suspension bush end face boring bar 10 is provided with the alloy head blade 9 that is about 30mm, end face boring bar 10 and alloy head blade 9 are point-blank, end face boring bar 10 adopts the steel bar that forges of 20 × 150mm to make, mill out the oval deep cutter groove of 1/4th shapes in approximately 1/3rd positions, end face boring bar 10 front end side with milling machine, alloy cutter head is welded in this cutter groove with brazing, grind alloy head blade 9 with abrasive machine after cooling, make alloy head blade 9 and end face boring bar 10 point-blank, on alloy head blade 9, be provided with blade anterior angle 11 and circumferential clearance 12, blade anterior angle 11 is 2 degree, circumferential clearance 12 is 10 degree, axle suspension bush end face boring cutter alloy head blade 9 anterior angle 11 directions are consistent with boring spindle direction of rotation, and end face boring cutter is adding man-hour, the end face 3 direction equalitys of end face boring bar 10 and alloy head blade 9 directions and axle suspension bush.
The processing method of axle suspension bush R arc as shown in Figure 9, the traction electric machine that assembles axle suspension bush is hung on axle suspension bush boring machine with suspender, adjust jack height, carry out centering with dial gauge, make axle suspension bush center line coaxial with boring spindle center line, ensure that center, two axle suspension bush holes is on a line.First respectively the horn mouth at axle suspension bush endoporus and two ends, axle suspension bush hole is processed with existing axle suspension bush inner hole boring tool and horn mouth boring cutter, wherein, after boring watt, axle suspension bush endoporus alloy thickness is not less than 2.2mm, and typhon mouth processing length is 50mm, and toy trumpet mouth processing length is 70mm.And then axle suspension bush R arc 1 is processed with R arc boring cutter.Concrete steps are: axle suspension bush R arc boring bar 6 is fixed in boring spindle tool rest, starts rotation boring spindle, put into axle suspension bush R arc 1 is carried out to boring processing and chamfering.The machining size degree of depth is 0.4-0.8mm, and ensures the fineness of axle suspension bush R arc 1.
The processing method of axle suspension bush end face as shown in figure 10, axle suspension bush end face boring bar 10 is fixed in boring spindle tool rest, the knife height of knife bar is adjusted to highly concordant with axle suspension bush end face 3, starts rotation boring spindle, puts into axle suspension bush end face 3 is carried out to boring processing.The machining size degree of depth is 0.4-0.8mm, guarantees that axle suspension bush end face 3 and wheel are 1-1.6mm to the transverse momentum between end face 4.With the axle suspension bush diameter of bore after dial bore gage detection processing, till detection axle suspension bush R arc 1 and 3 processing of axle suspension bush end face reach after technology requirement.
Claims (3)
1. a locomotive traction motor axle suspension bush R arc and end face processing combination boring cutter, it is characterized in that: the end of axle suspension bush R arc boring bar (6) is provided with the R cambered surface blade (5) coinciding with axle suspension bush R arc (1), the rake face of R cambered surface blade (5) is provided with the relief angle (7) of 6 degree and the anterior angle (8) of 6 degree; The upper side of axle suspension bush end face boring bar (10) is provided with and knife bar (10) alloy head blade (9) point-blank, and alloy head blade (9) is provided with the anterior angle (11) of 2 degree and the relief angle (12) of 10 degree.
2. a kind of locomotive traction motor axle suspension bush R arc according to claim 1 and end face processing combination boring cutter, it is characterized in that: described R cambered surface blade (5) is a skewed cambered surface in axle suspension bush R arc boring bar (6) end, anterior angle (8) direction on R cambered surface blade (5) rake face is consistent with boring spindle direction of rotation, and the relief angle (7) on the rear knife face of R cambered surface blade (5) and R cambered surface blade (5) rake face is counterclockwise.
3. a kind of locomotive traction motor axle suspension bush R arc according to claim 1 and end face processing combination boring cutter, is characterized in that: alloy head blade (9) anterior angle (11) direction on described end face boring bar (10) is consistent with boring spindle direction of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189445.4A CN104174883B (en) | 2013-05-21 | 2013-05-21 | A kind of locomotive traction motor axle suspension bush R arcs and end face processing combination boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310189445.4A CN104174883B (en) | 2013-05-21 | 2013-05-21 | A kind of locomotive traction motor axle suspension bush R arcs and end face processing combination boring cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104174883A true CN104174883A (en) | 2014-12-03 |
| CN104174883B CN104174883B (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310189445.4A Active CN104174883B (en) | 2013-05-21 | 2013-05-21 | A kind of locomotive traction motor axle suspension bush R arcs and end face processing combination boring cutter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104174883B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003170302A (en) * | 2001-12-06 | 2003-06-17 | Ngk Spark Plug Co Ltd | Shim seat and cutting tool |
| US6764255B1 (en) * | 1999-10-15 | 2004-07-20 | Seagate Technology Llc | Cutting tool for precision machining a hydrodynamic bearing bore in stainless steel sleeve |
| EP2204251A1 (en) * | 2008-12-31 | 2010-07-07 | VARGUS Ltd. | Tool holder for a cutting tool and cutting tool |
| CN201807747U (en) * | 2010-09-25 | 2011-04-27 | 绵阳市绵工工具有限公司 | Inner hole finish turning cutter |
| CN201841276U (en) * | 2010-09-25 | 2011-05-25 | 北京星航机电设备厂 | Fast boring tool for fillet at nose end |
| CN201862797U (en) * | 2010-11-23 | 2011-06-15 | 常州市海力工具有限公司 | Shaping lathe tool |
| CN202438698U (en) * | 2011-12-16 | 2012-09-19 | 恩比贝克飞虹汽车零部件(四川)有限公司 | A bearing bush fine boring cutter with a wide cutting edge |
| CN203265661U (en) * | 2013-05-21 | 2013-11-06 | 南车洛阳机车有限公司 | Combined boring cutter for machining R arc and end face of locomotive traction motor axle suspension bush |
-
2013
- 2013-05-21 CN CN201310189445.4A patent/CN104174883B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6764255B1 (en) * | 1999-10-15 | 2004-07-20 | Seagate Technology Llc | Cutting tool for precision machining a hydrodynamic bearing bore in stainless steel sleeve |
| JP2003170302A (en) * | 2001-12-06 | 2003-06-17 | Ngk Spark Plug Co Ltd | Shim seat and cutting tool |
| EP2204251A1 (en) * | 2008-12-31 | 2010-07-07 | VARGUS Ltd. | Tool holder for a cutting tool and cutting tool |
| CN201807747U (en) * | 2010-09-25 | 2011-04-27 | 绵阳市绵工工具有限公司 | Inner hole finish turning cutter |
| CN201841276U (en) * | 2010-09-25 | 2011-05-25 | 北京星航机电设备厂 | Fast boring tool for fillet at nose end |
| CN201862797U (en) * | 2010-11-23 | 2011-06-15 | 常州市海力工具有限公司 | Shaping lathe tool |
| CN202438698U (en) * | 2011-12-16 | 2012-09-19 | 恩比贝克飞虹汽车零部件(四川)有限公司 | A bearing bush fine boring cutter with a wide cutting edge |
| CN203265661U (en) * | 2013-05-21 | 2013-11-06 | 南车洛阳机车有限公司 | Combined boring cutter for machining R arc and end face of locomotive traction motor axle suspension bush |
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| Publication number | Publication date |
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| CN104174883B (en) | 2018-04-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 441105 No. 8, iron road, Xiangzhou District, Hubei, Xiangyang Applicant after: CRRC LUOYANG CO., LTD. Address before: 441105 Xiangfan province Hubei City Xiangzhou District Road No. 8 steel Applicant before: CSR Luoyang Locomotive Co., Ltd. |
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| CB02 | Change of applicant information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shen Wei Inventor after: Li Dongping Inventor after: Li Xuebing Inventor after: Xia Yongbing Inventor after: Yan Xuebin Inventor after: Liu Huaiwen Inventor before: Liu Huaiwen Inventor before: Yan Xuebin Inventor before: Li Dongping |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |