CN101513677B - Tool for forming external edge of inner circle of precision bearing - Google Patents
Tool for forming external edge of inner circle of precision bearing Download PDFInfo
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- CN101513677B CN101513677B CN2009100485073A CN200910048507A CN101513677B CN 101513677 B CN101513677 B CN 101513677B CN 2009100485073 A CN2009100485073 A CN 2009100485073A CN 200910048507 A CN200910048507 A CN 200910048507A CN 101513677 B CN101513677 B CN 101513677B
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- knife
- handle
- precision bearing
- locating hole
- blade body
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Abstract
A tool for forming the external edge of the inner circle of precision bearing comprises a holder and a blade, wherein the holder comprises a grab handler provided with a joint on the upper end for installing the blade, and the blade comprises a blade body provided with declivous edges on the upper and lower ends thereof, the declivous edges are composed of chamfers on the two ends and a surface processing part between the chamfers, and the surface processing part is provided with a curved projection in the middle. The invention has the beneficial effects of capability of one-time processing and formation of the external edge of the inner circle, raceway and chamfers of the precision bearing, which improves processing efficiency.
Description
Technical field
The present invention relates to a kind of cutter, relate in particular to a kind of molding cutter that is used for the processing precise bearing inner race.
Background technology
In industrial production modern today, people are more and more higher to the precision requirement of industrial production machine and associated components thereof, for example in aerospace industry, people have quite strict requirement for specification, the size of any one parts of spacecraft, if little deviation more a little might last result will be irremediable.And the bearing of use is all arranged for basic each part precision instrument, because its quantity of using in machine is big, people are to its also especially height of precision requirement.
At present, inner ring cylindrical processing about precision bearing (external diameter is below 30 millimeters), the general cutter that still adopts the processing plain bearing, by circle moulding in the inner ring of lathe elder generation processing precise bearing, and then the chamfering moulding, this processing method working (machining) efficiency is low, and because the processing specification of precision bearing is little, the requirement on machining accuracy height so the precision bearing yield rate that processes is low, does not meet the demand of production.
Summary of the invention
Technical problem to be solved by this invention is: overcome problems of the prior art, the molding cutter of precision bearing inner ring cylindrical is provided, this molding cutter can improve working (machining) efficiency to the disposable machine-shaping of cylindrical, raceway and chamfered part of precision bearing inner ring.
To achieve these goals, technical scheme of the present invention is as follows:
The molding cutter of precision bearing inner ring cylindrical, it comprises handle of a knife and blade, it is characterized in that:
Described handle of a knife comprises a lever, and the upper end of this lever is provided with a joint portion, is used to install blade; Described joint portion comprises first locating hole, the locating slot that is positioned at the joint portion right-hand member and a location division that is positioned at joint portion middle part;
Described blade comprises blade body, and the upper and lower part of described blade body is provided with declivous cutting edge, and described declivous cutting edge is made up of the chamfering at two ends and the Surface Machining portion between two chamferings, and the centre of described Surface Machining portion is provided with an arc convex; The front portion of described blade body is provided with a prismatoid, and this prismatoid is stuck in the locating slot of handle of a knife; The declivous cutting edge of described blade body bottom is stuck in the location division of handle of a knife; The middle part of described blade body is provided with second locating hole corresponding with first locating hole of handle of a knife, and a bolt passes first locating hole and second locating hole is fixed on blade on the handle of a knife.
Further, in the present invention, described first locating hole and second locating hole are screw.
Further, in the present invention, described blade body behind flip vertical 180 degree, shape with originally overlapped.
Further, in the present invention, the upper and lower part of described blade body is provided with the first location card base and the second location card base, is provided with described declivous cutting edge between the first location card base and the second location card base.
Further, in the present invention, the angle of inclination of described declivous cutting edge is the 10-20 degree.
Further, in the present invention, described handle of a knife is a cuboid.
Beneficial effect of the present invention is as follows:
1. the present invention can improve working (machining) efficiency to the disposable machine-shaping of cylindrical, raceway and chamfered part of precision bearing inner ring.
2. reasonable in design, be convenient to install, simple and compact for structure, practical;
3. highly versatile just can use on machine tool.
The present invention is mainly used in the processing of precision bearing inner ring cylindrical.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the front view of blade.
Fig. 4 is that the A-A of Fig. 3 is to cross-sectional view.
Fig. 5 is the vertical view of Fig. 3.
Fig. 6 is the front view of handle of a knife of the present invention.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the vertical view of Fig. 6.
Fig. 9 is a working state schematic representation of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1 and 2, the molding cutter of precision bearing inner ring cylindrical, it comprises handle of a knife 100 and blade 200.
Referring to Fig. 3,4 and 5, blade 200 comprises blade body 210, the upper and lower part of blade body 210 is provided with the first location card base 240 and the second location card base 250, between the first location card base 240 and the second location card base 250, be provided with declivous cutting edge 260, declivous cutting edge 260 is made up of the chamfering 261 at two ends and the Surface Machining portion 262 between two chamferings 261, and the centre of Surface Machining portion 262 is provided with an arc convex 263.The angle of inclination of declivous cutting edge 260 is between the 10-20 degree.Adopt the declivous cutting edge of this structure the disposable machine-shaping of cylindrical, raceway and chamfered part of precision bearing inner ring can have been improved working (machining) efficiency.
It is pointed out that blade body 210 behind flip vertical 180 degree, shape with originally overlapped.
Upper and lower two declivous cutting edges of blade setting all can be used to the precision bearing inner ring is processed, and can polish to it after the declivous cutting edge wearing and tearing, in order to avoid produce mismachining tolerance.
The front portion of blade body 210 is provided with a prismatoid 230, and the inclined side of this prismatoid 230 constitutes first fixed part; The middle part of blade body 210 is provided with second locating hole 220, and this second locating hole is a screw, and this second locating hole 220 constitutes second fixed part; The bottom of blade body is the 3rd fixed part.By this first, second and third fixed part blade 200 is fixed on the handle of a knife 100.
Referring to Fig. 6,7 and 8, handle of a knife 100 comprises a lever 110, and in this preferred embodiment, lever 110 is a cuboid, and the upper end of this lever 110 is provided with a joint portion 120, is used to install blade.
This joint portion 120 is made up of three parts, is respectively: be positioned at first locating hole 121 at 120 middle parts, joint portion, this first locating hole 121 also is a screw, and first locating hole 121 runs through handle of a knife 100; Be positioned at the locating slot 122 of joint portion 120 right-hand members, this locating slot 122 comprises an inclined plane; And a location division 123 that is positioned at 120 bottoms, joint portion, the bottom of this location division 123 and the bottom of blade are suitable.
During installation, in the joint portion 120 with blade 200 insertion handle of a knife 100 from the top down, the prismatoid 230 of blade is stuck in the locating slot 122 of handle of a knife; The first location card base 240, the second location card base 250 and the declivous cutting edge 260 of blade bottom are stuck in the location division 123 of handle of a knife, and a bolt passes first locating hole 121 and second locating hole 220 is fixed on blade on the handle of a knife.Adopt the mode of this triple-secured to fix blade, prevented from process, to produce error, improved the rigidity of solid tool because of blade is loosening.
During work, the present invention is placed on the machine tool and uses, and the inner ring cylindrical of precision bearing is processed.Is example with the model for the 693zz bearing: earlier cutter of the present invention is fixed on the lathe cutter saddle; Bearing inner race 300 is fixed on formation grinding member on the anchor clamps, and the grinding member is placed on the four pin chucks (workpiece clamp) of lathe.Adjust tool holder height subsequently, restart the grinding member, bearing inner race 300 is at the uniform velocity rotated.By follow rest, the cutter that drives on the knife rest relies on bearing inner race 300 (as shown in Figure 9) simultaneously, and the cylindrical of the 260 pairs of bearing inner races 300 of declivous cutting edge on the cutter cuts reconditioning and handles, with the cylindrical polishing moulding of bearing inner race.
The present invention is reasonable in design, easy to process, practical, satisfies in the precision instrument high-quality requirement to precision bearing, remarkable in economical benefits.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. the molding cutter of precision bearing inner ring cylindrical, it comprises handle of a knife and blade, it is characterized in that:
Described handle of a knife comprises a lever, and the upper end of this lever is provided with a joint portion, is used to install blade; Described joint portion comprises first locating hole, the locating slot that is positioned at the joint portion right-hand member and a location division that is positioned at joint portion middle part;
Described blade comprises blade body, and the upper and lower part of described blade body is provided with declivous cutting edge, and described declivous cutting edge is made up of the chamfering at two ends and the Surface Machining portion between two chamferings, and the centre of described Surface Machining portion is provided with an arc convex; The front portion of described blade body is provided with a prismatoid, and this prismatoid is stuck in the locating slot of handle of a knife; The declivous cutting edge of described blade body bottom is stuck in the location division of handle of a knife; The middle part of described blade body is provided with second locating hole corresponding with first locating hole of handle of a knife, and a bolt passes first locating hole and second locating hole is fixed on blade on the handle of a knife.
2. the molding cutter of precision bearing inner ring cylindrical according to claim 1 is characterized in that, described first locating hole and second locating hole are screw.
3. the molding cutter of precision bearing inner ring cylindrical according to claim 1 is characterized in that, described blade body behind flip vertical 180 degree, shape with originally overlapped.
4. the molding cutter of precision bearing inner ring cylindrical according to claim 1, it is characterized in that, the upper and lower part of described blade body is provided with the first location card base and the second location card base, is provided with described declivous cutting edge between the first location card base and the second location card base.
5. the molding cutter of precision bearing inner ring cylindrical according to claim 1 is characterized in that, the angle of inclination of described declivous cutting edge is the 10-20 degree.
6. the molding cutter of precision bearing inner ring cylindrical according to claim 1 is characterized in that, described handle of a knife is a cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100485073A CN101513677B (en) | 2009-03-30 | 2009-03-30 | Tool for forming external edge of inner circle of precision bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100485073A CN101513677B (en) | 2009-03-30 | 2009-03-30 | Tool for forming external edge of inner circle of precision bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101513677A CN101513677A (en) | 2009-08-26 |
| CN101513677B true CN101513677B (en) | 2010-08-18 |
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ID=41038380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100485073A Active CN101513677B (en) | 2009-03-30 | 2009-03-30 | Tool for forming external edge of inner circle of precision bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101513677B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364087A (en) * | 2015-12-15 | 2016-03-02 | 常熟市常轴轴承有限公司 | Turning process of vehicle hub bearing |
| CN106312105A (en) * | 2016-11-04 | 2017-01-11 | 哈尔滨理工大学 | Special indexable turning blade for machining channels in inner surface of bearing outer ring |
-
2009
- 2009-03-30 CN CN2009100485073A patent/CN101513677B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101513677A (en) | 2009-08-26 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |