CN104044040A - Method for repairing and maintaining surface of fracture groove of outer-ring-fracture-type thin-wall bearing - Google Patents
Method for repairing and maintaining surface of fracture groove of outer-ring-fracture-type thin-wall bearing Download PDFInfo
- Publication number
- CN104044040A CN104044040A CN201410303321.9A CN201410303321A CN104044040A CN 104044040 A CN104044040 A CN 104044040A CN 201410303321 A CN201410303321 A CN 201410303321A CN 104044040 A CN104044040 A CN 104044040A
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- China
- Prior art keywords
- outer ring
- fracture
- positioning fixture
- finishing
- groove
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a method for repairing and maintaining the surface of a fracture groove of an outer-ring-fracture-type thin-wall bearing. The method includes the following steps: (1) a positioning clamp is flatly placed on a working table, a machined outer ring is placed in an inner hole of the positioning clamp, a positioning screw enters the fracture groove, the standard end face of the outer ring is flush with the standard end face of the positioning clamp, and then the outer ring is tightly pressed with a pressing screw; (2) the whole positioning clamp is placed on an end face positioning jig, a lower supporting block is adjusted to enable the center of the positioning clamp to be equal to the center of a machine tool (a grinding wheel) in height, and a V-type groove is matched with a rear supporting block; (3) then electrification and magnetization are carried out, the whole positioning clamp and the machined outer ring are fixed, the axial position between the grinding wheel and the groove of the outer ring is adjusted, the surface of the fracture groove of the outer ring is repaired and maintained, after repairing and maintaining are completed, the grinding wheel is withdrawn, demagnetization is carried out, the positioning clamp is taken down, the pressing screw is loosened, and the repaired and maintained outer ring is taken out. On the premise that the use performance and the service life of the bearing are guaranteed, the outer ring can be fractured, and the problem of radial plastic deformation of the ring is solved.
Description
Technical field
The invention belongs to technical field of bearing processing, relate in particular to the method for trimming of a kind of outer ring breaking type thin-wall bearing fracture channel surface.
Background technology
At present, thin-walled outer ring fracture bearing is subject to the restriction of structural design aspect, and finished product lasso is slotted after examining eventually on the axial direction of external diameter, then adopts special-purpose frock to make its fracture.Bearing outer ring is inserted in to one with the axle of tapering, and pressure ring is pressed on cycle surface, and pressure ring is applied to power, when the large end of axle is passed through in outer ring, due to the shape of groove, at bottom land, causes that stress is concentrated, and lasso just can be along the fracture of fluting direction.Desirable fracture is that section is closely sealed good under nature, without metal, falls slag, and the strain of workpiece is recovered completely, and when light-illuminating, its commissure is without light leakage phenomenon.But in actual production, the tapering of axle will draw through test of many times, after workpiece fracture, there is the defects such as out-of-flatness in the post-rift fracture in outer ring, do not reach perfect condition, if fracture is processed without finishing, can have a strong impact on serviceability and the life-span of bearing, so must repair fracture channel surface.
Summary of the invention
The method for trimming that the object of this invention is to provide a kind of outer ring breaking type thin-wall bearing fracture channel surface, has solved under the problem prerequisite in bearing serviceability and life-span, can either make outer ring fracture, does not cause again the problem of lasso plastic deformation radially.
In order to achieve the above object, the present invention by the following technical solutions: the method for trimming of a kind of outer ring breaking type thin-wall bearing fracture channel surface, its step is as follows:
A: positioning fixture lies on workbench, puts into processed outer ring the endoporus of positioning fixture, makes dog screw enter breaking groove, and the datum end face of outer ring is concordant with the datum end face of positioning fixture, then with housing screw, compresses;
B: positioning fixture integral body is placed on the tire of end face location, adjusts lower support piece, make the center of positioning fixture and lathe (emery wheel) center contour, V-shaped groove coordinates with rear bearing block;
C: the upper magnetic of then switching on, whole positioning fixture and processed outer ring are fixed, adjust the axial location between emery wheel and outer ring raceway, after the finishing of carrying out outer ring fracture channel surface completes, exit emery wheel, positioning fixture is taken down in demagnetization, unclamp housing screw, take out the outer ring being trimmed.
Concrete, before the finishing of outer ring, should be first to the grouping of outer ring size, the control of grinding depth during convenient finishing, after the more shallow better outer ring finishing of the finishing degree of depth, the out-of-flatness thing of its channel surface must be removed.
Concrete, described grinding wheel diameter is got the 1/2 comparatively suitable of outer ring internal diameter, and abrasive wheel grinding wheel arc radius is trimmed to identical or slightly little with outer raceway groove radius of curvature by trimmer.
The invention has the beneficial effects as follows: the present invention is simple, convenient operation, can either make outer ring fracture, does not cause again lasso plastic deformation radially.Outer ring fracture channel surface to outer ring breaking type thin-walled ball bearing in batches can be repaired fast and effectively, and makes channel surface not affect the requirement of bearing to vibration and noise, thus the service life of improving bearing.
Accompanying drawing explanation
Fig. 1 outer ring raceway breaking part finishing schematic diagram;
Fig. 2 outer ring raceway breaking part finishing cutaway view;
?fig. 3 is outer ring fracture schematic diagram;
Fig. 4 is raceway groove schematic diagram after finishing.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
By reference to the accompanying drawings shown in 1,2,3, the method for trimming of a kind of outer ring breaking type thin-wall bearing fracture channel surface, its step is as follows:
A: positioning fixture lies on workbench, puts into processed outer ring the endoporus of positioning fixture, makes dog screw enter breaking groove, and the datum end face of outer ring is concordant with the datum end face of positioning fixture, then with housing screw, compresses;
B: positioning fixture integral body is placed on the tire of end face location, adjusts lower support piece, make the center of positioning fixture and lathe (emery wheel) center contour, V-shaped groove coordinates with rear bearing block;
C: the upper magnetic of then switching on, whole positioning fixture and processed outer ring are fixed, adjust the axial location between emery wheel and outer ring raceway, the finishing of carrying out outer ring fracture channel surface is exited emery wheel after having repaired, and positioning fixture is taken down in demagnetization, unclamp housing screw, take out the outer ring being trimmed;
Described method for trimming, before the finishing of outer ring, should be first to the grouping of outer ring size, the control of grinding depth during convenient finishing, after the more shallow better outer ring finishing of the finishing degree of depth, the out-of-flatness thing of its channel surface must be removed.
Described grinding wheel diameter is got the 1/2 comparatively suitable of outer ring internal diameter, and abrasive wheel grinding wheel arc radius is trimmed to identical or slightly little with outer raceway groove radius of curvature by trimmer.
The present invention does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (3)
1. a method for trimming for outer ring breaking type thin-wall bearing fracture channel surface, is characterized in that its step is as follows:
A: positioning fixture lies on workbench, puts into processed outer ring the endoporus of positioning fixture, makes dog screw enter breaking groove, and the datum end face of outer ring is concordant with the datum end face of positioning fixture, then with housing screw, compresses;
B: positioning fixture integral body is placed on the tire of end face location, adjusts lower support piece, make the center of positioning fixture and lathe (emery wheel) center contour, V-shaped groove coordinates with rear bearing block;
C: the upper magnetic of then switching on, whole positioning fixture and processed outer ring are fixed, adjust the axial location between emery wheel and outer ring raceway, carry out the finishing of outer ring fracture channel surface, after having repaired, exit emery wheel, positioning fixture is taken down in demagnetization, unclamps housing screw, takes out the outer ring being trimmed.
2. according to the method for trimming of a kind of outer ring breaking type thin-wall bearing fracture channel surface described in claim 1, it is characterized in that: before described outer ring finishing, should first to outer ring size, divide into groups, the control of grinding depth during convenient finishing, after the more shallow better outer ring finishing of the finishing degree of depth, the out-of-flatness thing of its channel surface must be removed.
3. according to the method for trimming of a kind of outer ring breaking type thin-wall bearing fracture channel surface described in claim 1, it is characterized in that: described grinding wheel diameter is got the 1/2 comparatively suitable of outer ring internal diameter, and abrasive wheel grinding wheel arc radius is trimmed to identical or slightly little with outer raceway groove radius of curvature by trimmer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303321.9A CN104044040A (en) | 2014-06-30 | 2014-06-30 | Method for repairing and maintaining surface of fracture groove of outer-ring-fracture-type thin-wall bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303321.9A CN104044040A (en) | 2014-06-30 | 2014-06-30 | Method for repairing and maintaining surface of fracture groove of outer-ring-fracture-type thin-wall bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104044040A true CN104044040A (en) | 2014-09-17 |
Family
ID=51497692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410303321.9A Pending CN104044040A (en) | 2014-06-30 | 2014-06-30 | Method for repairing and maintaining surface of fracture groove of outer-ring-fracture-type thin-wall bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104044040A (en) |
-
2014
- 2014-06-30 CN CN201410303321.9A patent/CN104044040A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140917 |
|
| WD01 | Invention patent application deemed withdrawn after publication |